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gerrit-public.fairphone.software / platform / external / ImageMagick / 89505f76b54adb376939f7e85fdf3cf186005d4d / . / magick / widget.c
blob: c824b39b60e4732e7aadc2073af71abce6f5135b [file] [log] [blame]
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% %
% W W IIIII DDDD GGGG EEEEE TTTTT %
% W W I D D G E T %
% W W W I D D G GG EEE T %
% WW WW I D D G G E T %
% W W IIIII DDDD GGGG EEEEE T %
% %
% %
% MagickCore X11 User Interface Methods %
% %
% Software Design %
% John Cristy %
% September 1993 %
% %
% %
% Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% http://www.imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/image.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/PreRvIcccm.h"
#include "magick/string_.h"
#include "magick/token.h"
#include "magick/utility.h"
#include "magick/xwindow-private.h"
#include "magick/widget.h"
#if defined(MAGICKCORE_X11_DELEGATE)
/*
Define declarations.
*/
#define AreaIsActive(matte_info,position) ( \
((position.y >= (int) (matte_info.y-matte_info.bevel_width)) && \
(position.y < (int) (matte_info.y+matte_info.height+matte_info.bevel_width))) \
? MagickTrue : MagickFalse)
#define Extent(s) ((int) strlen(s))
#define MatteIsActive(matte_info,position) ( \
((position.x >= (int) (matte_info.x-matte_info.bevel_width)) && \
(position.y >= (int) (matte_info.y-matte_info.bevel_width)) && \
(position.x < (int) (matte_info.x+matte_info.width+matte_info.bevel_width)) && \
(position.y < (int) (matte_info.y+matte_info.height+matte_info.bevel_width))) \
? MagickTrue : MagickFalse)
#define MaxTextWidth ((unsigned int) (255*XTextWidth(font_info,"_",1)))
#define MinTextWidth (26*XTextWidth(font_info,"_",1))
#define QuantumMargin MagickMax(font_info->max_bounds.width,12)
#define WidgetTextWidth(font_info,text) \
((unsigned int) XTextWidth(font_info,text,Extent(text)))
#define WindowIsActive(window_info,position) ( \
((position.x >= 0) && (position.y >= 0) && \
(position.x < (int) window_info.width) && \
(position.y < (int) window_info.height)) ? MagickTrue : MagickFalse)
/*
Enum declarations.
*/
typedef enum
{
ControlState = 0x0001,
InactiveWidgetState = 0x0004,
JumpListState = 0x0008,
RedrawActionState = 0x0010,
RedrawListState = 0x0020,
RedrawWidgetState = 0x0040,
UpdateListState = 0x0100
} WidgetState;
/*
Typedef declarations.
*/
typedef struct _XWidgetInfo
{
char
*cursor,
*text,
*marker;
int
id;
unsigned int
bevel_width,
width,
height;
int
x,
y,
min_y,
max_y;
MagickStatusType
raised,
active,
center,
trough,
highlight;
} XWidgetInfo;
/*
Variable declarations.
*/
static XWidgetInfo
monitor_info =
{
(char *) NULL, (char *) NULL, (char *) NULL, 0, 0, 0, 0, 0, 0, 0, 0,
MagickFalse, MagickFalse, MagickFalse, MagickFalse, MagickFalse
},
submenu_info =
{
(char *) NULL, (char *) NULL, (char *) NULL, 0, 0, 0, 0, 0, 0, 0, 0,
MagickFalse, MagickFalse, MagickFalse, MagickFalse, MagickFalse
},
*selection_info = (XWidgetInfo *) NULL,
toggle_info =
{
(char *) NULL, (char *) NULL, (char *) NULL, 0, 0, 0, 0, 0, 0, 0, 0,
MagickFalse, MagickFalse, MagickFalse, MagickFalse, MagickFalse
};
/*
Constant declarations.
*/
static const int
BorderOffset = 4,
DoubleClick = 250;
/*
Method prototypes.
*/
static void
XDrawMatte(Display *,const XWindowInfo *,const XWidgetInfo *),
XSetBevelColor(Display *,const XWindowInfo *,const MagickStatusType),
XSetMatteColor(Display *,const XWindowInfo *,const MagickStatusType),
XSetTextColor(Display *,const XWindowInfo *,const MagickStatusType);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D e s t r o y X W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DestroyXWidget() destroys resources associated with the X widget.
%
% The format of the DestroyXWidget method is:
%
% void DestroyXWidget()
%
% A description of each parameter follows:
%
*/
MagickExport void DestroyXWidget(void)
{
if (selection_info != (XWidgetInfo *) NULL)
selection_info=(XWidgetInfo *) RelinquishMagickMemory(selection_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w B e v e l %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawBevel() "sets off" an area with a highlighted upper and left bevel and
% a shadowed lower and right bevel. The highlighted and shadowed bevels
% create a 3-D effect.
%
% The format of the XDrawBevel function is:
%
% XDrawBevel(display,window_info,bevel_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o bevel_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the bevel.
%
*/
static void XDrawBevel(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *bevel_info)
{
int
x1,
x2,
y1,
y2;
unsigned int
bevel_width;
XPoint
points[6];
/*
Draw upper and left beveled border.
*/
x1=bevel_info->x;
y1=bevel_info->y+bevel_info->height;
x2=bevel_info->x+bevel_info->width;
y2=bevel_info->y;
bevel_width=bevel_info->bevel_width;
points[0].x=x1;
points[0].y=y1;
points[1].x=x1;
points[1].y=y2;
points[2].x=x2;
points[2].y=y2;
points[3].x=x2+bevel_width;
points[3].y=y2-bevel_width;
points[4].x=x1-bevel_width;
points[4].y=y2-bevel_width;
points[5].x=x1-bevel_width;
points[5].y=y1+bevel_width;
XSetBevelColor(display,window_info,bevel_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,6,Complex,CoordModeOrigin);
/*
Draw lower and right beveled border.
*/
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y1;
points[2].x=x2;
points[2].y=y2;
points[3].x=x2+bevel_width;
points[3].y=y2-bevel_width;
points[4].x=x2+bevel_width;
points[4].y=y1+bevel_width;
points[5].x=x1-bevel_width;
points[5].y=y1+bevel_width;
XSetBevelColor(display,window_info,!bevel_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,6,Complex,CoordModeOrigin);
(void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w B e v e l e d B u t t o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawBeveledButton() draws a button with a highlighted upper and left bevel
% and a shadowed lower and right bevel. The highlighted and shadowed bevels
% create a 3-D effect.
%
% The format of the XDrawBeveledButton function is:
%
% XDrawBeveledButton(display,window_info,button_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o button_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the button.
%
*/
static inline int MagickAbsoluteValue(const int x)
{
if (x < 0)
return(-x);
return(x);
}
static inline int MagickMax(const int x,const int y)
{
if (x > y)
return(x);
return(y);
}
static inline int MagickMin(const int x,const int y)
{
if (x < y)
return(x);
return(y);
}
static void XDrawBeveledButton(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *button_info)
{
int
x,
y;
unsigned int
width;
XFontStruct
*font_info;
XRectangle
crop_info;
/*
Draw matte.
*/
XDrawBevel(display,window_info,button_info);
XSetMatteColor(display,window_info,button_info->raised);
(void) XFillRectangle(display,window_info->id,window_info->widget_context,
button_info->x,button_info->y,button_info->width,button_info->height);
x=button_info->x-button_info->bevel_width-1;
y=button_info->y-button_info->bevel_width-1;
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->trough_color.pixel);
if (button_info->raised || (window_info->depth == 1))
(void) XDrawRectangle(display,window_info->id,window_info->widget_context,
x,y,button_info->width+(button_info->bevel_width << 1)+1,
button_info->height+(button_info->bevel_width << 1)+1);
if (button_info->text == (char *) NULL)
return;
/*
Set cropping region.
*/
crop_info.width=(unsigned short) button_info->width;
crop_info.height=(unsigned short) button_info->height;
crop_info.x=button_info->x;
crop_info.y=button_info->y;
/*
Draw text.
*/
font_info=window_info->font_info;
width=WidgetTextWidth(font_info,button_info->text);
x=button_info->x+(QuantumMargin >> 1);
if (button_info->center)
x=button_info->x+(button_info->width >> 1)-(width >> 1);
y=button_info->y+((button_info->height-
(font_info->ascent+font_info->descent)) >> 1)+font_info->ascent;
if ((int) button_info->width == (QuantumMargin >> 1))
{
/*
Option button-- write label to right of button.
*/
XSetTextColor(display,window_info,MagickTrue);
x=button_info->x+button_info->width+button_info->bevel_width+
(QuantumMargin >> 1);
(void) XDrawString(display,window_info->id,window_info->widget_context,
x,y,button_info->text,Extent(button_info->text));
return;
}
(void) XSetClipRectangles(display,window_info->widget_context,0,0,&crop_info,
1,Unsorted);
XSetTextColor(display,window_info,button_info->raised);
(void) XDrawString(display,window_info->id,window_info->widget_context,x,y,
button_info->text,Extent(button_info->text));
(void) XSetClipMask(display,window_info->widget_context,None);
if (button_info->raised == MagickFalse)
XDelay(display,SuspendTime << 2);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w B e v e l e d M a t t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawBeveledMatte() draws a matte with a shadowed upper and left bevel and
% a highlighted lower and right bevel. The highlighted and shadowed bevels
% create a 3-D effect.
%
% The format of the XDrawBeveledMatte function is:
%
% XDrawBeveledMatte(display,window_info,matte_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o matte_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the matte.
%
*/
static void XDrawBeveledMatte(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *matte_info)
{
/*
Draw matte.
*/
XDrawBevel(display,window_info,matte_info);
XDrawMatte(display,window_info,matte_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w M a t t e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawMatte() fills a rectangular area with the matte color.
%
% The format of the XDrawMatte function is:
%
% XDrawMatte(display,window_info,matte_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o matte_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the matte.
%
*/
static void XDrawMatte(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *matte_info)
{
/*
Draw matte.
*/
if ((matte_info->trough == MagickFalse) || (window_info->depth == 1))
(void) XFillRectangle(display,window_info->id,
window_info->highlight_context,matte_info->x,matte_info->y,
matte_info->width,matte_info->height);
else
{
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->trough_color.pixel);
(void) XFillRectangle(display,window_info->id,window_info->widget_context,
matte_info->x,matte_info->y,matte_info->width,matte_info->height);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w M a t t e T e x t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawMatteText() draws a matte with text. If the text exceeds the extents
% of the text, a portion of the text relative to the cursor is displayed.
%
% The format of the XDrawMatteText function is:
%
% XDrawMatteText(display,window_info,text_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o text_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the text.
%
*/
static void XDrawMatteText(Display *display,const XWindowInfo *window_info,
XWidgetInfo *text_info)
{
const char
*text;
int
n,
x,
y;
register int
i;
unsigned int
height,
width;
XFontStruct
*font_info;
XRectangle
crop_info;
/*
Clear the text area.
*/
XSetMatteColor(display,window_info,MagickFalse);
(void) XFillRectangle(display,window_info->id,window_info->widget_context,
text_info->x,text_info->y,text_info->width,text_info->height);
if (text_info->text == (char *) NULL)
return;
XSetTextColor(display,window_info,text_info->highlight);
font_info=window_info->font_info;
x=text_info->x+(QuantumMargin >> 2);
y=text_info->y+font_info->ascent+(text_info->height >> 2);
width=text_info->width-(QuantumMargin >> 1);
height=(unsigned int) (font_info->ascent+font_info->descent);
if (*text_info->text == '\0')
{
/*
No text-- just draw cursor.
*/
(void) XDrawLine(display,window_info->id,window_info->annotate_context,
x,y+3,x,y-height+3);
return;
}
/*
Set cropping region.
*/
crop_info.width=(unsigned short) text_info->width;
crop_info.height=(unsigned short) text_info->height;
crop_info.x=text_info->x;
crop_info.y=text_info->y;
/*
Determine beginning of the visible text.
*/
if (text_info->cursor < text_info->marker)
text_info->marker=text_info->cursor;
else
{
text=text_info->marker;
if (XTextWidth(font_info,(char *) text,(int) (text_info->cursor-text)) >
(int) width)
{
text=text_info->text;
for (i=0; i < Extent(text); i++)
{
n=XTextWidth(font_info,(char *) text+i,(int)
(text_info->cursor-text-i));
if (n <= (int) width)
break;
}
text_info->marker=(char *) text+i;
}
}
/*
Draw text and cursor.
*/
if (text_info->highlight == MagickFalse)
{
(void) XSetClipRectangles(display,window_info->widget_context,0,0,
&crop_info,1,Unsorted);
(void) XDrawString(display,window_info->id,window_info->widget_context,
x,y,text_info->marker,Extent(text_info->marker));
(void) XSetClipMask(display,window_info->widget_context,None);
}
else
{
(void) XSetClipRectangles(display,window_info->annotate_context,0,0,
&crop_info,1,Unsorted);
width=WidgetTextWidth(font_info,text_info->marker);
(void) XFillRectangle(display,window_info->id,
window_info->annotate_context,x,y-font_info->ascent,width,height);
(void) XSetClipMask(display,window_info->annotate_context,None);
(void) XSetClipRectangles(display,window_info->highlight_context,0,0,
&crop_info,1,Unsorted);
(void) XDrawString(display,window_info->id,
window_info->highlight_context,x,y,text_info->marker,
Extent(text_info->marker));
(void) XSetClipMask(display,window_info->highlight_context,None);
}
x+=XTextWidth(font_info,text_info->marker,(int)
(text_info->cursor-text_info->marker));
(void) XDrawLine(display,window_info->id,window_info->annotate_context,x,y+3,
x,y-height+3);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w T r i a n g l e E a s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawTriangleEast() draws a triangle with a highlighted left bevel and a
% shadowed right and lower bevel. The highlighted and shadowed bevels create
% a 3-D effect.
%
% The format of the XDrawTriangleEast function is:
%
% XDrawTriangleEast(display,window_info,triangle_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o triangle_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the triangle.
%
*/
static void XDrawTriangleEast(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *triangle_info)
{
int
x1,
x2,
x3,
y1,
y2,
y3;
unsigned int
bevel_width;
XFontStruct
*font_info;
XPoint
points[4];
/*
Draw triangle matte.
*/
x1=triangle_info->x;
y1=triangle_info->y;
x2=triangle_info->x+triangle_info->width;
y2=triangle_info->y+(triangle_info->height >> 1);
x3=triangle_info->x;
y3=triangle_info->y+triangle_info->height;
bevel_width=triangle_info->bevel_width;
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y2;
points[2].x=x3;
points[2].y=y3;
XSetMatteColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,3,Complex,CoordModeOrigin);
/*
Draw bottom bevel.
*/
points[0].x=x2;
points[0].y=y2;
points[1].x=x3;
points[1].y=y3;
points[2].x=x3-bevel_width;
points[2].y=y3+bevel_width;
points[3].x=x2+bevel_width;
points[3].y=y2;
XSetBevelColor(display,window_info,!triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
/*
Draw Left bevel.
*/
points[0].x=x3;
points[0].y=y3;
points[1].x=x1;
points[1].y=y1;
points[2].x=x1-bevel_width+1;
points[2].y=y1-bevel_width;
points[3].x=x3-bevel_width+1;
points[3].y=y3+bevel_width;
XSetBevelColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
/*
Draw top bevel.
*/
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y2;
points[2].x=x2+bevel_width;
points[2].y=y2;
points[3].x=x1-bevel_width;
points[3].y=y1-bevel_width;
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
(void) XSetFillStyle(display,window_info->widget_context,FillSolid);
if (triangle_info->text == (char *) NULL)
return;
/*
Write label to right of triangle.
*/
font_info=window_info->font_info;
XSetTextColor(display,window_info,MagickTrue);
x1=triangle_info->x+triangle_info->width+triangle_info->bevel_width+
(QuantumMargin >> 1);
y1=triangle_info->y+((triangle_info->height-
(font_info->ascent+font_info->descent)) >> 1)+font_info->ascent;
(void) XDrawString(display,window_info->id,window_info->widget_context,x1,y1,
triangle_info->text,Extent(triangle_info->text));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w T r i a n g l e N o r t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawTriangleNorth() draws a triangle with a highlighted left bevel and a
% shadowed right and lower bevel. The highlighted and shadowed bevels create
% a 3-D effect.
%
% The format of the XDrawTriangleNorth function is:
%
% XDrawTriangleNorth(display,window_info,triangle_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o triangle_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the triangle.
%
*/
static void XDrawTriangleNorth(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *triangle_info)
{
int
x1,
x2,
x3,
y1,
y2,
y3;
unsigned int
bevel_width;
XPoint
points[4];
/*
Draw triangle matte.
*/
x1=triangle_info->x;
y1=triangle_info->y+triangle_info->height;
x2=triangle_info->x+(triangle_info->width >> 1);
y2=triangle_info->y;
x3=triangle_info->x+triangle_info->width;
y3=triangle_info->y+triangle_info->height;
bevel_width=triangle_info->bevel_width;
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y2;
points[2].x=x3;
points[2].y=y3;
XSetMatteColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,3,Complex,CoordModeOrigin);
/*
Draw left bevel.
*/
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y2;
points[2].x=x2;
points[2].y=y2-bevel_width-2;
points[3].x=x1-bevel_width-1;
points[3].y=y1+bevel_width;
XSetBevelColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
/*
Draw right bevel.
*/
points[0].x=x2;
points[0].y=y2;
points[1].x=x3;
points[1].y=y3;
points[2].x=x3+bevel_width;
points[2].y=y3+bevel_width;
points[3].x=x2;
points[3].y=y2-bevel_width;
XSetBevelColor(display,window_info,!triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
/*
Draw lower bevel.
*/
points[0].x=x3;
points[0].y=y3;
points[1].x=x1;
points[1].y=y1;
points[2].x=x1-bevel_width;
points[2].y=y1+bevel_width;
points[3].x=x3+bevel_width;
points[3].y=y3+bevel_width;
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
(void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w T r i a n g l e S o u t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawTriangleSouth() draws a border with a highlighted left and right bevel
% and a shadowed lower bevel. The highlighted and shadowed bevels create a
% 3-D effect.
%
% The format of the XDrawTriangleSouth function is:
%
% XDrawTriangleSouth(display,window_info,triangle_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o triangle_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the triangle.
%
*/
static void XDrawTriangleSouth(Display *display,const XWindowInfo *window_info,
const XWidgetInfo *triangle_info)
{
int
x1,
x2,
x3,
y1,
y2,
y3;
unsigned int
bevel_width;
XPoint
points[4];
/*
Draw triangle matte.
*/
x1=triangle_info->x;
y1=triangle_info->y;
x2=triangle_info->x+(triangle_info->width >> 1);
y2=triangle_info->y+triangle_info->height;
x3=triangle_info->x+triangle_info->width;
y3=triangle_info->y;
bevel_width=triangle_info->bevel_width;
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y2;
points[2].x=x3;
points[2].y=y3;
XSetMatteColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,3,Complex,CoordModeOrigin);
/*
Draw top bevel.
*/
points[0].x=x3;
points[0].y=y3;
points[1].x=x1;
points[1].y=y1;
points[2].x=x1-bevel_width;
points[2].y=y1-bevel_width;
points[3].x=x3+bevel_width;
points[3].y=y3-bevel_width;
XSetBevelColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
/*
Draw right bevel.
*/
points[0].x=x2;
points[0].y=y2;
points[1].x=x3+1;
points[1].y=y3-bevel_width;
points[2].x=x3+bevel_width;
points[2].y=y3-bevel_width;
points[3].x=x2;
points[3].y=y2+bevel_width;
XSetBevelColor(display,window_info,!triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
/*
Draw left bevel.
*/
points[0].x=x1;
points[0].y=y1;
points[1].x=x2;
points[1].y=y2;
points[2].x=x2;
points[2].y=y2+bevel_width;
points[3].x=x1-bevel_width;
points[3].y=y1-bevel_width;
XSetBevelColor(display,window_info,triangle_info->raised);
(void) XFillPolygon(display,window_info->id,window_info->widget_context,
points,4,Complex,CoordModeOrigin);
(void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X D r a w W i d g e t T e x t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDrawWidgetText() first clears the widget and draws a text string justifed
% left (or center) in the x-direction and centered within the y-direction.
%
% The format of the XDrawWidgetText function is:
%
% XDrawWidgetText(display,window_info,text_info)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a XWindowText structure.
%
% o text_info: Specifies a pointer to XWidgetInfo structure.
%
*/
static void XDrawWidgetText(Display *display,const XWindowInfo *window_info,
XWidgetInfo *text_info)
{
GC
widget_context;
int
x,
y;
unsigned int
height,
width;
XFontStruct
*font_info;
XRectangle
crop_info;
/*
Clear the text area.
*/
widget_context=window_info->annotate_context;
if (text_info->raised)
(void) XClearArea(display,window_info->id,text_info->x,text_info->y,
text_info->width,text_info->height,MagickFalse);
else
{
(void) XFillRectangle(display,window_info->id,widget_context,text_info->x,
text_info->y,text_info->width,text_info->height);
widget_context=window_info->highlight_context;
}
if (text_info->text == (char *) NULL)
return;
if (*text_info->text == '\0')
return;
/*
Set cropping region.
*/
font_info=window_info->font_info;
crop_info.width=(unsigned short) text_info->width;
crop_info.height=(unsigned short) text_info->height;
crop_info.x=text_info->x;
crop_info.y=text_info->y;
/*
Draw text.
*/
width=WidgetTextWidth(font_info,text_info->text);
x=text_info->x+(QuantumMargin >> 1);
if (text_info->center)
x=text_info->x+(text_info->width >> 1)-(width >> 1);
if (text_info->raised)
if (width > (text_info->width-QuantumMargin))
x+=(text_info->width-QuantumMargin-width);
height=(unsigned int) (font_info->ascent+font_info->descent);
y=text_info->y+((text_info->height-height) >> 1)+font_info->ascent;
(void) XSetClipRectangles(display,widget_context,0,0,&crop_info,1,Unsorted);
(void) XDrawString(display,window_info->id,widget_context,x,y,text_info->text,
Extent(text_info->text));
(void) XSetClipMask(display,widget_context,None);
if (x < text_info->x)
(void) XDrawLine(display,window_info->id,window_info->annotate_context,
text_info->x,text_info->y,text_info->x,text_info->y+text_info->height-1);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X E d i t T e x t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XEditText() edits a text string as indicated by the key symbol.
%
% The format of the XEditText function is:
%
% XEditText(display,text_info,key_symbol,text,state)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o text_info: Specifies a pointer to a XWidgetInfo structure. It
% contains the extents of the text.
%
% o key_symbol: A X11 KeySym that indicates what editing function to
% perform to the text.
%
% o text: A character string to insert into the text.
%
% o state: An size_t that indicates whether the key symbol is a
% control character or not.
%
*/
static void XEditText(Display *display,XWidgetInfo *text_info,
const KeySym key_symbol,char *text,const size_t state)
{
switch ((int) key_symbol)
{
case XK_BackSpace:
case XK_Delete:
{
if (text_info->highlight)
{
/*
Erase the entire line of text.
*/
*text_info->text='\0';
text_info->cursor=text_info->text;
text_info->marker=text_info->text;
text_info->highlight=MagickFalse;
}
/*
Erase one character.
*/
if (text_info->cursor != text_info->text)
{
text_info->cursor--;
(void) CopyMagickString(text_info->cursor,text_info->cursor+1,
MaxTextExtent);
text_info->highlight=MagickFalse;
break;
}
}
case XK_Left:
case XK_KP_Left:
{
/*
Move cursor one position left.
*/
if (text_info->cursor == text_info->text)
break;
text_info->cursor--;
break;
}
case XK_Right:
case XK_KP_Right:
{
/*
Move cursor one position right.
*/
if (text_info->cursor == (text_info->text+Extent(text_info->text)))
break;
text_info->cursor++;
break;
}
default:
{
register char
*p,
*q;
register int
i;
if (state & ControlState)
break;
if (*text == '\0')
break;
if ((Extent(text_info->text)+1) >= (int) MaxTextExtent)
(void) XBell(display,0);
else
{
if (text_info->highlight)
{
/*
Erase the entire line of text.
*/
*text_info->text='\0';
text_info->cursor=text_info->text;
text_info->marker=text_info->text;
text_info->highlight=MagickFalse;
}
/*
Insert a string into the text.
*/
q=text_info->text+Extent(text_info->text)+strlen(text);
for (i=0; i <= Extent(text_info->cursor); i++)
{
*q=(*(q-Extent(text)));
q--;
}
p=text;
for (i=0; i < Extent(text); i++)
*text_info->cursor++=(*p++);
}
break;
}
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X G e t W i d g e t I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XGetWidgetInfo() initializes the XWidgetInfo structure.
%
% The format of the XGetWidgetInfo function is:
%
% XGetWidgetInfo(text,widget_info)
%
% A description of each parameter follows:
%
% o text: A string of characters associated with the widget.
%
% o widget_info: Specifies a pointer to a X11 XWidgetInfo structure.
%
*/
static void XGetWidgetInfo(const char *text,XWidgetInfo *widget_info)
{
/*
Initialize widget info.
*/
widget_info->id=(~0);
widget_info->bevel_width=3;
widget_info->width=1;
widget_info->height=1;
widget_info->x=0;
widget_info->y=0;
widget_info->min_y=0;
widget_info->max_y=0;
widget_info->raised=MagickTrue;
widget_info->active=MagickFalse;
widget_info->center=MagickTrue;
widget_info->trough=MagickFalse;
widget_info->highlight=MagickFalse;
widget_info->text=(char *) text;
widget_info->cursor=(char *) text;
if (text != (char *) NULL)
widget_info->cursor+=Extent(text);
widget_info->marker=(char *) text;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X H i g h l i g h t W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XHighlightWidget() draws a highlighted border around a window.
%
% The format of the XHighlightWidget function is:
%
% XHighlightWidget(display,window_info,x,y)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o x: Specifies an integer representing the rectangle offset in the
% x-direction.
%
% o y: Specifies an integer representing the rectangle offset in the
% y-direction.
%
*/
static void XHighlightWidget(Display *display,const XWindowInfo *window_info,
const int x,const int y)
{
/*
Draw the widget highlighting rectangle.
*/
XSetBevelColor(display,window_info,MagickTrue);
(void) XDrawRectangle(display,window_info->id,window_info->widget_context,x,y,
window_info->width-(x << 1),window_info->height-(y << 1));
(void) XDrawRectangle(display,window_info->id,window_info->widget_context,
x-1,y-1,window_info->width-(x << 1)+1,window_info->height-(y << 1)+1);
XSetBevelColor(display,window_info,MagickFalse);
(void) XDrawRectangle(display,window_info->id,window_info->widget_context,
x-1,y-1,window_info->width-(x << 1),window_info->height-(y << 1));
(void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X S c r e e n E v e n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XScreenEvent() returns MagickTrue if the any event on the X server queue is
% associated with the widget window.
%
% The format of the XScreenEvent function is:
%
% int XScreenEvent(Display *display,XEvent *event,char *data)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o event: Specifies a pointer to a X11 XEvent structure.
%
% o data: Specifies a pointer to a XWindows structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int XScreenEvent(Display *display,XEvent *event,char *data)
{
XWindows
*windows;
windows=(XWindows *) data;
if (event->xany.window == windows->popup.id)
{
if (event->type == MapNotify)
windows->popup.mapped=MagickTrue;
if (event->type == UnmapNotify)
windows->popup.mapped=MagickFalse;
return(MagickTrue);
}
if (event->xany.window == windows->widget.id)
{
if (event->type == MapNotify)
windows->widget.mapped=MagickTrue;
if (event->type == UnmapNotify)
windows->widget.mapped=MagickFalse;
return(MagickTrue);
}
switch (event->type)
{
case ButtonPress:
{
if ((event->xbutton.button == Button3) &&
(event->xbutton.state & Mod1Mask))
{
/*
Convert Alt-Button3 to Button2.
*/
event->xbutton.button=Button2;
event->xbutton.state&=(~Mod1Mask);
}
return(MagickTrue);
}
case Expose:
{
if (event->xexpose.window == windows->image.id)
{
XRefreshWindow(display,&windows->image,event);
break;
}
if (event->xexpose.window == windows->magnify.id)
if (event->xexpose.count == 0)
if (windows->magnify.mapped)
{
XMakeMagnifyImage(display,windows);
break;
}
if (event->xexpose.window == windows->command.id)
if (event->xexpose.count == 0)
{
(void) XCommandWidget(display,windows,(const char **) NULL,event);
break;
}
break;
}
case FocusOut:
{
/*
Set input focus for backdrop window.
*/
if (event->xfocus.window == windows->image.id)
(void) XSetInputFocus(display,windows->image.id,RevertToNone,
CurrentTime);
return(MagickTrue);
}
case ButtonRelease:
case KeyPress:
case KeyRelease:
case MotionNotify:
case SelectionNotify:
return(MagickTrue);
default:
break;
}
return(MagickFalse);
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X S e t B e v e l C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XSetBevelColor() sets the graphic context for drawing a beveled border.
%
% The format of the XSetBevelColor function is:
%
% XSetBevelColor(display,window_info,raised)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o raised: A value other than zero indicates the color show be a
% "highlight" color, otherwise the "shadow" color is set.
%
*/
static void XSetBevelColor(Display *display,const XWindowInfo *window_info,
const MagickStatusType raised)
{
if (window_info->depth == 1)
{
Pixmap
stipple;
/*
Monochrome window.
*/
(void) XSetBackground(display,window_info->widget_context,
XBlackPixel(display,window_info->screen));
(void) XSetForeground(display,window_info->widget_context,
XWhitePixel(display,window_info->screen));
(void) XSetFillStyle(display,window_info->widget_context,
FillOpaqueStippled);
stipple=window_info->highlight_stipple;
if (raised == MagickFalse)
stipple=window_info->shadow_stipple;
(void) XSetStipple(display,window_info->widget_context,stipple);
}
else
if (raised)
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->highlight_color.pixel);
else
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->shadow_color.pixel);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X S e t M a t t e C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XSetMatteColor() sets the graphic context for drawing the matte.
%
% The format of the XSetMatteColor function is:
%
% XSetMatteColor(display,window_info,raised)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o raised: A value other than zero indicates the matte is active.
%
*/
static void XSetMatteColor(Display *display,const XWindowInfo *window_info,
const MagickStatusType raised)
{
if (window_info->depth == 1)
{
/*
Monochrome window.
*/
if (raised)
(void) XSetForeground(display,window_info->widget_context,
XWhitePixel(display,window_info->screen));
else
(void) XSetForeground(display,window_info->widget_context,
XBlackPixel(display,window_info->screen));
}
else
if (raised)
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->matte_color.pixel);
else
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->depth_color.pixel);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ X S e t T e x t C o l o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XSetTextColor() sets the graphic context for drawing text on a matte.
%
% The format of the XSetTextColor function is:
%
% XSetTextColor(display,window_info,raised)
%
% A description of each parameter follows:
%
% o display: Specifies a pointer to the Display structure; returned from
% XOpenDisplay.
%
% o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
% o raised: A value other than zero indicates the color show be a
% "highlight" color, otherwise the "shadow" color is set.
%
*/
static void XSetTextColor(Display *display,const XWindowInfo *window_info,
const MagickStatusType raised)
{
ssize_t
foreground,
matte;
if (window_info->depth == 1)
{
/*
Monochrome window.
*/
if (raised)
(void) XSetForeground(display,window_info->widget_context,
XBlackPixel(display,window_info->screen));
else
(void) XSetForeground(display,window_info->widget_context,
XWhitePixel(display,window_info->screen));
return;
}
foreground=(ssize_t) XPixelIntensity(
&window_info->pixel_info->foreground_color);
matte=(ssize_t) XPixelIntensity(&window_info->pixel_info->matte_color);
if (MagickAbsoluteValue((int) (foreground-matte)) > (65535L >> 3))
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->foreground_color.pixel);
else
(void) XSetForeground(display,window_info->widget_context,
window_info->pixel_info->background_color.pixel);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X C o l o r B r o w s e r W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XColorBrowserWidget() displays a Color Browser widget with a color query
% to the user. The user keys a reply and presses the Action or Cancel button
% to exit. The typed text is returned as the reply function parameter.
%
% The format of the XColorBrowserWidget method is:
%
% void XColorBrowserWidget(Display *display,XWindows *windows,
% const char *action,char *reply)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o action: Specifies a pointer to the action of this widget.
%
% o reply: the response from the user is returned in this parameter.
%
*/
MagickExport void XColorBrowserWidget(Display *display,XWindows *windows,
const char *action,char *reply)
{
#define CancelButtonText "Cancel"
#define ColornameText "Name:"
#define ColorPatternText "Pattern:"
#define GrabButtonText "Grab"
#define ResetButtonText "Reset"
char
**colorlist,
primary_selection[MaxTextExtent],
reset_pattern[MaxTextExtent],
text[MaxTextExtent];
ExceptionInfo
*exception;
int
x,
y;
register int
i;
static char
glob_pattern[MaxTextExtent] = "*";
static MagickStatusType
mask = (MagickStatusType) (CWWidth | CWHeight | CWX | CWY);
Status
status;
unsigned int
height,
text_width,
visible_colors,
width;
size_t
colors,
delay,
state;
XColor
color;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
action_info,
cancel_info,
expose_info,
grab_info,
list_info,
mode_info,
north_info,
reply_info,
reset_info,
scroll_info,
selection_info,
slider_info,
south_info,
text_info;
XWindowChanges
window_changes;
/*
Get color list and sort in ascending order.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(action != (char *) NULL);
assert(reply != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
XSetCursorState(display,windows,MagickTrue);
XCheckRefreshWindows(display,windows);
(void) CopyMagickString(reset_pattern,"*",MaxTextExtent);
exception=AcquireExceptionInfo();
colorlist=GetColorList(glob_pattern,&colors,exception);
if (colorlist == (char **) NULL)
{
/*
Pattern failed, obtain all the colors.
*/
(void) CopyMagickString(glob_pattern,"*",MaxTextExtent);
colorlist=GetColorList(glob_pattern,&colors,exception);
if (colorlist == (char **) NULL)
{
XNoticeWidget(display,windows,"Unable to obtain colors names:",
glob_pattern);
(void) XDialogWidget(display,windows,action,"Enter color name:",
reply);
return;
}
}
/*
Determine Color Browser widget attributes.
*/
font_info=windows->widget.font_info;
text_width=0;
for (i=0; i < (int) colors; i++)
if (WidgetTextWidth(font_info,colorlist[i]) > text_width)
text_width=WidgetTextWidth(font_info,colorlist[i]);
width=WidgetTextWidth(font_info,(char *) action);
if (WidgetTextWidth(font_info,CancelButtonText) > width)
width=WidgetTextWidth(font_info,CancelButtonText);
if (WidgetTextWidth(font_info,ResetButtonText) > width)
width=WidgetTextWidth(font_info,ResetButtonText);
if (WidgetTextWidth(font_info,GrabButtonText) > width)
width=WidgetTextWidth(font_info,GrabButtonText);
width+=QuantumMargin;
if (WidgetTextWidth(font_info,ColorPatternText) > width)
width=WidgetTextWidth(font_info,ColorPatternText);
if (WidgetTextWidth(font_info,ColornameText) > width)
width=WidgetTextWidth(font_info,ColornameText);
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position Color Browser widget.
*/
windows->widget.width=(unsigned int)
(width+MagickMin((int) text_width,(int) MaxTextWidth)+6*QuantumMargin);
windows->widget.min_width=(unsigned int)
(width+MinTextWidth+4*QuantumMargin);
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int)
((81*height) >> 2)+((13*QuantumMargin) >> 1)+4;
windows->widget.min_height=(unsigned int)
(((23*height) >> 1)+((13*QuantumMargin) >> 1)+4);
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Color Browser widget.
*/
(void) CopyMagickString(windows->widget.name,"Browse and Select a Color",
MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
mask,&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
XGetWidgetInfo((char *) NULL,&slider_info);
XGetWidgetInfo((char *) NULL,&north_info);
XGetWidgetInfo((char *) NULL,&south_info);
XGetWidgetInfo((char *) NULL,&expose_info);
visible_colors=0;
delay=SuspendTime << 2;
state=UpdateConfigurationState;
do
{
if (state & UpdateConfigurationState)
{
int
id;
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=width;
cancel_info.height=(unsigned int) ((3*height) >> 1);
cancel_info.x=(int)
(windows->widget.width-cancel_info.width-QuantumMargin-2);
cancel_info.y=(int)
(windows->widget.height-cancel_info.height-QuantumMargin);
XGetWidgetInfo(action,&action_info);
action_info.width=width;
action_info.height=(unsigned int) ((3*height) >> 1);
action_info.x=cancel_info.x-(cancel_info.width+(QuantumMargin >> 1)+
(action_info.bevel_width << 1));
action_info.y=cancel_info.y;
XGetWidgetInfo(GrabButtonText,&grab_info);
grab_info.width=width;
grab_info.height=(unsigned int) ((3*height) >> 1);
grab_info.x=QuantumMargin;
grab_info.y=((5*QuantumMargin) >> 1)+height;
XGetWidgetInfo(ResetButtonText,&reset_info);
reset_info.width=width;
reset_info.height=(unsigned int) ((3*height) >> 1);
reset_info.x=QuantumMargin;
reset_info.y=grab_info.y+grab_info.height+QuantumMargin;
/*
Initialize reply information.
*/
XGetWidgetInfo(reply,&reply_info);
reply_info.raised=MagickFalse;
reply_info.bevel_width--;
reply_info.width=windows->widget.width-width-((6*QuantumMargin) >> 1);
reply_info.height=height << 1;
reply_info.x=(int) (width+(QuantumMargin << 1));
reply_info.y=action_info.y-reply_info.height-QuantumMargin;
/*
Initialize mode information.
*/
XGetWidgetInfo((char *) NULL,&mode_info);
mode_info.active=MagickTrue;
mode_info.bevel_width=0;
mode_info.width=(unsigned int) (action_info.x-(QuantumMargin << 1));
mode_info.height=action_info.height;
mode_info.x=QuantumMargin;
mode_info.y=action_info.y;
/*
Initialize scroll information.
*/
XGetWidgetInfo((char *) NULL,&scroll_info);
scroll_info.bevel_width--;
scroll_info.width=height;
scroll_info.height=(unsigned int) (reply_info.y-grab_info.y-
(QuantumMargin >> 1));
scroll_info.x=reply_info.x+(reply_info.width-scroll_info.width);
scroll_info.y=grab_info.y-reply_info.bevel_width;
scroll_info.raised=MagickFalse;
scroll_info.trough=MagickTrue;
north_info=scroll_info;
north_info.raised=MagickTrue;
north_info.width-=(north_info.bevel_width << 1);
north_info.height=north_info.width-1;
north_info.x+=north_info.bevel_width;
north_info.y+=north_info.bevel_width;
south_info=north_info;
south_info.y=scroll_info.y+scroll_info.height-scroll_info.bevel_width-
south_info.height;
id=slider_info.id;
slider_info=north_info;
slider_info.id=id;
slider_info.width-=2;
slider_info.min_y=north_info.y+north_info.height+north_info.bevel_width+
slider_info.bevel_width+2;
slider_info.height=scroll_info.height-((slider_info.min_y-
scroll_info.y+1) << 1)+4;
visible_colors=scroll_info.height/(height+(height >> 3));
if (colors > visible_colors)
slider_info.height=(unsigned int)
((visible_colors*slider_info.height)/colors);
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.x=scroll_info.x+slider_info.bevel_width+1;
slider_info.y=slider_info.min_y;
expose_info=scroll_info;
expose_info.y=slider_info.y;
/*
Initialize list information.
*/
XGetWidgetInfo((char *) NULL,&list_info);
list_info.raised=MagickFalse;
list_info.bevel_width--;
list_info.width=(unsigned int)
(scroll_info.x-reply_info.x-(QuantumMargin >> 1));
list_info.height=scroll_info.height;
list_info.x=reply_info.x;
list_info.y=scroll_info.y;
if (windows->widget.mapped == MagickFalse)
state|=JumpListState;
/*
Initialize text information.
*/
*text='\0';
XGetWidgetInfo(text,&text_info);
text_info.center=MagickFalse;
text_info.width=reply_info.width;
text_info.height=height;
text_info.x=list_info.x-(QuantumMargin >> 1);
text_info.y=QuantumMargin;
/*
Initialize selection information.
*/
XGetWidgetInfo((char *) NULL,&selection_info);
selection_info.center=MagickFalse;
selection_info.width=list_info.width;
selection_info.height=(unsigned int) ((9*height) >> 3);
selection_info.x=list_info.x;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Color Browser window.
*/
x=QuantumMargin;
y=text_info.y+((text_info.height-height) >> 1)+font_info->ascent;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,ColorPatternText,
Extent(ColorPatternText));
(void) CopyMagickString(text_info.text,glob_pattern,MaxTextExtent);
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawBeveledButton(display,&windows->widget,&grab_info);
XDrawBeveledButton(display,&windows->widget,&reset_info);
XDrawBeveledMatte(display,&windows->widget,&list_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
x=QuantumMargin;
y=reply_info.y+((reply_info.height-height) >> 1)+font_info->ascent;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,ColornameText,
Extent(ColornameText));
XDrawBeveledMatte(display,&windows->widget,&reply_info);
XDrawMatteText(display,&windows->widget,&reply_info);
XDrawBeveledButton(display,&windows->widget,&action_info);
XDrawBeveledButton(display,&windows->widget,&cancel_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
selection_info.id=(~0);
state|=RedrawActionState;
state|=RedrawListState;
state&=(~RedrawWidgetState);
}
if (state & UpdateListState)
{
char
**checklist;
size_t
number_colors;
status=XParseColor(display,windows->widget.map_info->colormap,
glob_pattern,&color);
if ((status != False) || (strchr(glob_pattern,'-') != (char *) NULL))
{
/*
Reply is a single color name-- exit.
*/
(void) CopyMagickString(reply,glob_pattern,MaxTextExtent);
(void) CopyMagickString(glob_pattern,reset_pattern,MaxTextExtent);
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
/*
Update color list.
*/
checklist=GetColorList(glob_pattern,&number_colors,exception);
if (number_colors == 0)
{
(void) CopyMagickString(glob_pattern,reset_pattern,MaxTextExtent);
(void) XBell(display,0);
}
else
{
for (i=0; i < (int) colors; i++)
colorlist[i]=DestroyString(colorlist[i]);
if (colorlist != (char **) NULL)
colorlist=(char **) RelinquishMagickMemory(colorlist);
colorlist=checklist;
colors=number_colors;
}
/*
Sort color list in ascending order.
*/
slider_info.height=
scroll_info.height-((slider_info.min_y-scroll_info.y+1) << 1)+1;
if (colors > visible_colors)
slider_info.height=(unsigned int)
((visible_colors*slider_info.height)/colors);
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.id=0;
slider_info.y=slider_info.min_y;
expose_info.y=slider_info.y;
selection_info.id=(~0);
list_info.id=(~0);
state|=RedrawListState;
/*
Redraw color name & reply.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
(void) CopyMagickString(text_info.text,glob_pattern,MaxTextExtent);
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawMatteText(display,&windows->widget,&reply_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~UpdateListState);
}
if (state & JumpListState)
{
/*
Jump scroll to match user color.
*/
list_info.id=(~0);
for (i=0; i < (int) colors; i++)
if (LocaleCompare(colorlist[i],reply) >= 0)
{
list_info.id=LocaleCompare(colorlist[i],reply) == 0 ? i : ~0;
break;
}
if ((i < slider_info.id) ||
(i >= (int) (slider_info.id+visible_colors)))
slider_info.id=i-(visible_colors >> 1);
selection_info.id=(~0);
state|=RedrawListState;
state&=(~JumpListState);
}
if (state & RedrawListState)
{
/*
Determine slider id and position.
*/
if (slider_info.id >= (int) (colors-visible_colors))
slider_info.id=(int) (colors-visible_colors);
if ((slider_info.id < 0) || (colors <= visible_colors))
slider_info.id=0;
slider_info.y=slider_info.min_y;
if (colors != 0)
slider_info.y+=(int) (slider_info.id*(slider_info.max_y-
slider_info.min_y+1)/colors);
if (slider_info.id != selection_info.id)
{
/*
Redraw scroll bar and file names.
*/
selection_info.id=slider_info.id;
selection_info.y=list_info.y+(height >> 3)+2;
for (i=0; i < (int) visible_colors; i++)
{
selection_info.raised=(slider_info.id+i) != list_info.id ?
MagickTrue : MagickFalse;
selection_info.text=(char *) NULL;
if ((slider_info.id+i) < (int) colors)
selection_info.text=colorlist[slider_info.id+i];
XDrawWidgetText(display,&windows->widget,&selection_info);
selection_info.y+=(int) selection_info.height;
}
/*
Update slider.
*/
if (slider_info.y > expose_info.y)
{
expose_info.height=(unsigned int) slider_info.y-expose_info.y;
expose_info.y=slider_info.y-expose_info.height-
slider_info.bevel_width-1;
}
else
{
expose_info.height=(unsigned int) expose_info.y-slider_info.y;
expose_info.y=slider_info.y+slider_info.height+
slider_info.bevel_width+1;
}
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawMatte(display,&windows->widget,&expose_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
expose_info.y=slider_info.y;
}
state&=(~RedrawListState);
}
if (state & RedrawActionState)
{
static char
colorname[MaxTextExtent];
/*
Display the selected color in a drawing area.
*/
color=windows->widget.pixel_info->matte_color;
(void) XParseColor(display,windows->widget.map_info->colormap,
reply_info.text,&windows->widget.pixel_info->matte_color);
XBestPixel(display,windows->widget.map_info->colormap,(XColor *) NULL,
(unsigned int) windows->widget.visual_info->colormap_size,
&windows->widget.pixel_info->matte_color);
mode_info.text=colorname;
(void) FormatMagickString(mode_info.text,MaxTextExtent,"#%02x%02x%02x",
windows->widget.pixel_info->matte_color.red,
windows->widget.pixel_info->matte_color.green,
windows->widget.pixel_info->matte_color.blue);
XDrawBeveledButton(display,&windows->widget,&mode_info);
windows->widget.pixel_info->matte_color=color;
state&=(~RedrawActionState);
}
/*
Wait for next event.
*/
if (north_info.raised && south_info.raised)
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
else
{
/*
Brief delay before advancing scroll bar.
*/
XDelay(display,delay);
delay=SuspendTime;
(void) XCheckIfEvent(display,&event,XScreenEvent,(char *) windows);
if (north_info.raised == MagickFalse)
if (slider_info.id > 0)
{
/*
Move slider up.
*/
slider_info.id--;
state|=RedrawListState;
}
if (south_info.raised == MagickFalse)
if (slider_info.id < (int) colors)
{
/*
Move slider down.
*/
slider_info.id++;
state|=RedrawListState;
}
if (event.type != ButtonRelease)
continue;
}
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(slider_info,event.xbutton))
{
/*
Track slider.
*/
slider_info.active=MagickTrue;
break;
}
if (MatteIsActive(north_info,event.xbutton))
if (slider_info.id > 0)
{
/*
Move slider up.
*/
north_info.raised=MagickFalse;
slider_info.id--;
state|=RedrawListState;
break;
}
if (MatteIsActive(south_info,event.xbutton))
if (slider_info.id < (int) colors)
{
/*
Move slider down.
*/
south_info.raised=MagickFalse;
slider_info.id++;
state|=RedrawListState;
break;
}
if (MatteIsActive(scroll_info,event.xbutton))
{
/*
Move slider.
*/
if (event.xbutton.y < slider_info.y)
slider_info.id-=(visible_colors-1);
else
slider_info.id+=(visible_colors-1);
state|=RedrawListState;
break;
}
if (MatteIsActive(list_info,event.xbutton))
{
int
id;
/*
User pressed list matte.
*/
id=slider_info.id+(event.xbutton.y-(list_info.y+(height >> 1))+1)/
selection_info.height;
if (id >= (int) colors)
break;
(void) CopyMagickString(reply_info.text,colorlist[id],
MaxTextExtent);
reply_info.highlight=MagickFalse;
reply_info.marker=reply_info.text;
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=RedrawActionState;
if (id == list_info.id)
{
(void) CopyMagickString(glob_pattern,reply_info.text,
MaxTextExtent);
state|=UpdateListState;
}
selection_info.id=(~0);
list_info.id=id;
state|=RedrawListState;
break;
}
if (MatteIsActive(grab_info,event.xbutton))
{
/*
User pressed Grab button.
*/
grab_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&grab_info);
break;
}
if (MatteIsActive(reset_info,event.xbutton))
{
/*
User pressed Reset button.
*/
reset_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&reset_info);
break;
}
if (MatteIsActive(mode_info,event.xbutton))
{
/*
User pressed mode button.
*/
(void) CopyMagickString(reply_info.text,mode_info.text,
MaxTextExtent);
(void) CopyMagickString(primary_selection,reply_info.text,
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
event.xbutton.time);
reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
windows->widget.id ? MagickTrue : MagickFalse;
reply_info.marker=reply_info.text;
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,&windows->widget,&reply_info);
break;
}
if (MatteIsActive(action_info,event.xbutton))
{
/*
User pressed action button.
*/
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed Cancel button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
if (event.xbutton.button != Button2)
{
static Time
click_time;
/*
Move text cursor to position of button press.
*/
x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
for (i=1; i <= Extent(reply_info.marker); i++)
if (XTextWidth(font_info,reply_info.marker,i) > x)
break;
reply_info.cursor=reply_info.marker+i-1;
if (event.xbutton.time > (click_time+DoubleClick))
reply_info.highlight=MagickFalse;
else
{
/*
Become the XA_PRIMARY selection owner.
*/
(void) CopyMagickString(primary_selection,reply_info.text,
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
event.xbutton.time);
reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
windows->widget.id ? MagickTrue : MagickFalse;
}
XDrawMatteText(display,&windows->widget,&reply_info);
click_time=event.xbutton.time;
break;
}
/*
Request primary selection.
*/
(void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
windows->widget.id,event.xbutton.time);
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (north_info.raised == MagickFalse)
{
/*
User released up button.
*/
delay=SuspendTime << 2;
north_info.raised=MagickTrue;
XDrawTriangleNorth(display,&windows->widget,&north_info);
}
if (south_info.raised == MagickFalse)
{
/*
User released down button.
*/
delay=SuspendTime << 2;
south_info.raised=MagickTrue;
XDrawTriangleSouth(display,&windows->widget,&south_info);
}
if (slider_info.active)
{
/*
Stop tracking slider.
*/
slider_info.active=MagickFalse;
break;
}
if (grab_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(grab_info,event.xbutton))
{
/*
Select a pen color from the X server.
*/
(void) XGetWindowColor(display,windows,reply_info.text);
reply_info.marker=reply_info.text;
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=RedrawActionState;
}
grab_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&grab_info);
}
if (reset_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(reset_info,event.xbutton))
{
(void) CopyMagickString(glob_pattern,reset_pattern,
MaxTextExtent);
state|=UpdateListState;
}
reset_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&reset_info);
}
if (action_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
{
if (MatteIsActive(action_info,event.xbutton))
{
if (*reply_info.text == '\0')
(void) XBell(display,0);
else
state|=ExitState;
}
}
action_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&action_info);
}
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(cancel_info,event.xbutton))
{
*reply_info.text='\0';
state|=ExitState;
}
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
*reply_info.text='\0';
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static int
length;
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
length=XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
*(command+length)='\0';
if (AreaIsActive(scroll_info,event.xkey))
{
/*
Move slider.
*/
switch ((int) key_symbol)
{
case XK_Home:
case XK_KP_Home:
{
slider_info.id=0;
break;
}
case XK_Up:
case XK_KP_Up:
{
slider_info.id--;
break;
}
case XK_Down:
case XK_KP_Down:
{
slider_info.id++;
break;
}
case XK_Prior:
case XK_KP_Prior:
{
slider_info.id-=visible_colors;
break;
}
case XK_Next:
case XK_KP_Next:
{
slider_info.id+=visible_colors;
break;
}
case XK_End:
case XK_KP_End:
{
slider_info.id=(int) colors;
break;
}
}
state|=RedrawListState;
break;
}
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
/*
Read new color or glob patterm.
*/
if (*reply_info.text == '\0')
break;
(void) CopyMagickString(glob_pattern,reply_info.text,MaxTextExtent);
state|=UpdateListState;
break;
}
if (key_symbol == XK_Control_L)
{
state|=ControlState;
break;
}
if (state & ControlState)
switch ((int) key_symbol)
{
case XK_u:
case XK_U:
{
/*
Erase the entire line of text.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
reply_info.marker=reply_info.text;
reply_info.highlight=MagickFalse;
break;
}
default:
break;
}
XEditText(display,&reply_info,key_symbol,command,state);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=JumpListState;
status=XParseColor(display,windows->widget.map_info->colormap,
reply_info.text,&color);
if (status != False)
state|=RedrawActionState;
break;
}
case KeyRelease:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key release.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if (key_symbol == XK_Control_L)
state&=(~ControlState);
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MapNotify:
{
mask&=(~CWX);
mask&=(~CWY);
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (slider_info.active)
{
/*
Move slider matte.
*/
slider_info.y=event.xmotion.y-
((slider_info.height+slider_info.bevel_width) >> 1)+1;
if (slider_info.y < slider_info.min_y)
slider_info.y=slider_info.min_y;
if (slider_info.y > slider_info.max_y)
slider_info.y=slider_info.max_y;
slider_info.id=0;
if (slider_info.y != slider_info.min_y)
slider_info.id=(int) ((colors*(slider_info.y-
slider_info.min_y+1))/(slider_info.max_y-slider_info.min_y+1));
state|=RedrawListState;
break;
}
if (state & InactiveWidgetState)
break;
if (grab_info.raised == MatteIsActive(grab_info,event.xmotion))
{
/*
Grab button status changed.
*/
grab_info.raised=!grab_info.raised;
XDrawBeveledButton(display,&windows->widget,&grab_info);
break;
}
if (reset_info.raised == MatteIsActive(reset_info,event.xmotion))
{
/*
Reset button status changed.
*/
reset_info.raised=!reset_info.raised;
XDrawBeveledButton(display,&windows->widget,&reset_info);
break;
}
if (action_info.raised == MatteIsActive(action_info,event.xmotion))
{
/*
Action button status changed.
*/
action_info.raised=action_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
break;
}
case SelectionClear:
{
reply_info.highlight=MagickFalse;
XDrawMatteText(display,&windows->widget,&reply_info);
break;
}
case SelectionNotify:
{
Atom
type;
int
format;
unsigned char
*data;
unsigned long
after,
length;
/*
Obtain response from primary selection.
*/
if (event.xselection.property == (Atom) None)
break;
status=XGetWindowProperty(display,event.xselection.requestor,
event.xselection.property,0L,2047L,MagickTrue,XA_STRING,&type,
&format,&length,&after,&data);
if ((status != Success) || (type != XA_STRING) || (format == 32) ||
(length == 0))
break;
if ((Extent(reply_info.text)+length) >= MaxTextExtent)
(void) XBell(display,0);
else
{
/*
Insert primary selection in reply text.
*/
*(data+length)='\0';
XEditText(display,&reply_info,(KeySym) XK_Insert,(char *) data,
state);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=JumpListState;
state|=RedrawActionState;
}
(void) XFree((void *) data);
break;
}
case SelectionRequest:
{
XSelectionEvent
notify;
XSelectionRequestEvent
*request;
if (reply_info.highlight == MagickFalse)
break;
/*
Set primary selection.
*/
request=(&(event.xselectionrequest));
(void) XChangeProperty(request->display,request->requestor,
request->property,request->target,8,PropModeReplace,
(unsigned char *) primary_selection,Extent(primary_selection));
notify.type=SelectionNotify;
notify.send_event=MagickTrue;
notify.display=request->display;
notify.requestor=request->requestor;
notify.selection=request->selection;
notify.target=request->target;
notify.time=request->time;
if (request->property == None)
notify.property=request->target;
else
notify.property=request->property;
(void) XSendEvent(request->display,request->requestor,False,
NoEventMask,(XEvent *) &notify);
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
/*
Free color list.
*/
for (i=0; i < (int) colors; i++)
colorlist[i]=DestroyString(colorlist[i]);
if (colorlist != (char **) NULL)
colorlist=(char **) RelinquishMagickMemory(colorlist);
exception=DestroyExceptionInfo(exception);
if ((*reply == '\0') || (strchr(reply,'-') != (char *) NULL))
return;
status=XParseColor(display,windows->widget.map_info->colormap,reply,&color);
if (status != False)
return;
XNoticeWidget(display,windows,"Color is unknown to X server:",reply);
(void) CopyMagickString(reply,"gray",MaxTextExtent);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X C o m m a n d W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XCommandWidget() maps a menu and returns the command pointed to by the user
% when the button is released.
%
% The format of the XCommandWidget method is:
%
% int XCommandWidget(Display *display,XWindows *windows,
% const char **selections,XEvent *event)
%
% A description of each parameter follows:
%
% o selection_number: Specifies the number of the selection that the
% user choose.
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o selections: Specifies a pointer to one or more strings that comprise
% the choices in the menu.
%
% o event: Specifies a pointer to a X11 XEvent structure.
%
*/
MagickExport int XCommandWidget(Display *display,XWindows *windows,
const char **selections,XEvent *event)
{
#define tile_width 112
#define tile_height 70
static const unsigned char
tile_bits[]=
{
0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x1e, 0x38, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1e, 0xbc, 0x9f, 0x03, 0x00, 0x3e, 0x00, 0xc0,
0x1f, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x1e, 0xfc, 0xff, 0x0f, 0x80, 0x3f,
0x00, 0xf0, 0x1f, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0xfc, 0xff, 0x1f,
0xe0, 0x3f, 0x00, 0xfc, 0x1f, 0xf0, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0xfc,
0xff, 0x1f, 0xf0, 0x3f, 0x00, 0xfe, 0x1f, 0xf8, 0x0f, 0x00, 0x00, 0x00,
0x1e, 0xfc, 0xfc, 0x3f, 0xf8, 0x3f, 0x00, 0xff, 0x1e, 0xfc, 0x0f, 0x00,
0x00, 0x00, 0x1e, 0x7c, 0xfc, 0x3e, 0xf8, 0x3c, 0x80, 0x1f, 0x1e, 0x7c,
0x0f, 0x00, 0x00, 0x00, 0x1e, 0x78, 0x78, 0x3c, 0x7c, 0x3c, 0xc0, 0x0f,
0x1e, 0x3e, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0x78, 0x78, 0x3c, 0x7c, 0x3c,
0xc0, 0x07, 0x1e, 0x3e, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0x78, 0x78, 0x3c,
0x7c, 0x7c, 0xc0, 0x0f, 0x1e, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x78,
0x78, 0x3c, 0xfc, 0x7c, 0x80, 0x7f, 0x1e, 0x7c, 0x00, 0x00, 0x00, 0x00,
0x1e, 0xf8, 0x78, 0x7c, 0xf8, 0xff, 0x00, 0xff, 0x1f, 0xf8, 0xff, 0x00,
0x00, 0x00, 0x1e, 0xf8, 0x78, 0x7c, 0xf0, 0xff, 0x07, 0xfe, 0x1f, 0xf8,
0xff, 0x00, 0x00, 0x00, 0x1e, 0xf8, 0x78, 0x7c, 0xf0, 0xff, 0x07, 0xf8,
0x1f, 0xf0, 0xff, 0x01, 0x00, 0x00, 0x1e, 0xf8, 0x78, 0x7c, 0xc0, 0xef,
0x07, 0xe0, 0x1f, 0xc0, 0xff, 0x01, 0x00, 0x00, 0x1e, 0x70, 0x40, 0x78,
0x00, 0xc7, 0x07, 0x00, 0x1e, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x1e, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00,
0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x02, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07,
0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xc0, 0x0f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x60, 0x00, 0xc0, 0x0f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x78, 0x00, 0xc0, 0x8f, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0xc0, 0x8f, 0x3f, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0xe0, 0x9f, 0x7f, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0xe0, 0xdf,
0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x78, 0x00,
0xe0, 0xdf, 0x7b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x0c,
0x78, 0x30, 0xf0, 0xff, 0x7b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e,
0x00, 0x0f, 0xf8, 0x70, 0xf0, 0xff, 0x7b, 0x00, 0x00, 0x1f, 0x00, 0xe0,
0x0f, 0x1e, 0x80, 0x0f, 0xf8, 0x78, 0xf0, 0xfd, 0xf9, 0x00, 0xc0, 0x1f,
0x00, 0xf8, 0x0f, 0x00, 0xe0, 0x1f, 0xf8, 0x7c, 0xf0, 0xfc, 0xf9, 0x00,
0xf0, 0x1f, 0x00, 0xfe, 0x0f, 0x00, 0xf0, 0x07, 0xf8, 0x3e, 0xf8, 0xfc,
0xf0, 0x01, 0xf8, 0x1f, 0x00, 0xff, 0x0f, 0x1e, 0xf0, 0x03, 0xf8, 0x3f,
0xf8, 0xf8, 0xf0, 0x01, 0xfc, 0x1f, 0x80, 0x7f, 0x0f, 0x1e, 0xf8, 0x00,
0xf8, 0x1f, 0x78, 0x18, 0xf0, 0x01, 0x7c, 0x1e, 0xc0, 0x0f, 0x0f, 0x1e,
0x7c, 0x00, 0xf0, 0x0f, 0x78, 0x00, 0xf0, 0x01, 0x3e, 0x1e, 0xe0, 0x07,
0x0f, 0x1e, 0x7c, 0x00, 0xf0, 0x07, 0x7c, 0x00, 0xe0, 0x01, 0x3e, 0x1e,
0xe0, 0x03, 0x0f, 0x1e, 0x3e, 0x00, 0xf0, 0x0f, 0x7c, 0x00, 0xe0, 0x03,
0x3e, 0x3e, 0xe0, 0x07, 0x0f, 0x1e, 0x1e, 0x00, 0xf0, 0x1f, 0x3c, 0x00,
0xe0, 0x03, 0x7e, 0x3e, 0xc0, 0x3f, 0x0f, 0x1e, 0x3e, 0x00, 0xf0, 0x1f,
0x3e, 0x00, 0xe0, 0x03, 0xfc, 0x7f, 0x80, 0xff, 0x0f, 0x1e, 0xfc, 0x00,
0xf0, 0x3e, 0x3e, 0x00, 0xc0, 0x03, 0xf8, 0xff, 0x03, 0xff, 0x0f, 0x1e,
0xfc, 0x07, 0xf0, 0x7c, 0x1e, 0x00, 0xc0, 0x03, 0xf8, 0xff, 0x03, 0xfc,
0x0f, 0x1e, 0xf8, 0x1f, 0xf0, 0xf8, 0x1e, 0x00, 0xc0, 0x03, 0xe0, 0xf7,
0x03, 0xf0, 0x0f, 0x1e, 0xe0, 0x3f, 0xf0, 0x78, 0x1c, 0x00, 0x80, 0x03,
0x80, 0xe3, 0x03, 0x00, 0x0f, 0x1e, 0xc0, 0x3f, 0xf0, 0x30, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x0e, 0x00, 0x3e, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x0f, 0x00, 0x00, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x0f, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0,
0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xe0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xf0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
int
id,
y;
register int
i;
static unsigned int
number_selections;
unsigned int
height;
size_t
state;
XFontStruct
*font_info;
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
font_info=windows->command.font_info;
height=(unsigned int) (font_info->ascent+font_info->descent);
id=(~0);
state=DefaultState;
if (event == (XEvent *) NULL)
{
unsigned int
width;
XTextProperty
window_name;
XWindowChanges
window_changes;
/*
Determine command window attributes.
*/
assert(selections != (const char **) NULL);
windows->command.width=0;
for (i=0; selections[i] != (char *) NULL; i++)
{
width=WidgetTextWidth(font_info,(char *) selections[i]);
if (width > windows->command.width)
windows->command.width=width;
}
number_selections=(unsigned int) i;
windows->command.width+=3*QuantumMargin+10;
if ((int) windows->command.width < (tile_width+QuantumMargin+10))
windows->command.width=(unsigned int) (tile_width+QuantumMargin+10);
windows->command.height=(unsigned int) (number_selections*
(((3*height) >> 1)+10)+tile_height+20);
windows->command.min_width=windows->command.width;
windows->command.min_height=windows->command.height;
XConstrainWindowPosition(display,&windows->command);
if (windows->command.id != (Window) NULL)
{
Status
status;
/*
Reconfigure command window.
*/
status=XStringListToTextProperty(&windows->command.name,1,
&window_name);
if (status != False)
{
XSetWMName(display,windows->command.id,&window_name);
XSetWMIconName(display,windows->command.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->command.width;
window_changes.height=(int) windows->command.height;
(void) XReconfigureWMWindow(display,windows->command.id,
windows->command.screen,(unsigned int) (CWWidth | CWHeight),
&window_changes);
}
/*
Allocate selection info memory.
*/
if (selection_info != (XWidgetInfo *) NULL)
selection_info=(XWidgetInfo *) RelinquishMagickMemory(selection_info);
selection_info=(XWidgetInfo *) AcquireQuantumMemory(number_selections,
sizeof(*selection_info));
if (selection_info == (XWidgetInfo *) NULL)
{
ThrowXWindowFatalException(ResourceLimitError,
"MemoryAllocationFailed","...");
return(id);
}
state|=UpdateConfigurationState | RedrawWidgetState;
}
/*
Wait for next event.
*/
if (event != (XEvent *) NULL)
switch (event->type)
{
case ButtonPress:
{
for (i=0; i < (int) number_selections; i++)
{
if (MatteIsActive(selection_info[i],event->xbutton) == MagickFalse)
continue;
if (i >= (int) windows->command.data)
{
selection_info[i].raised=MagickFalse;
XDrawBeveledButton(display,&windows->command,&selection_info[i]);
break;
}
submenu_info=selection_info[i];
submenu_info.active=MagickTrue;
toggle_info.y=
submenu_info.y+(submenu_info.height >> 1)-(toggle_info.height >> 1);
id=i;
(void) XCheckWindowEvent(display,windows->widget.id,LeaveWindowMask,
event);
break;
}
break;
}
case ButtonRelease:
{
for (i=0; i < (int) number_selections; i++)
{
if (MatteIsActive(selection_info[i],event->xbutton) == MagickFalse)
continue;
id=i;
if (id >= (int) windows->command.data)
{
selection_info[id].raised=MagickTrue;
XDrawBeveledButton(display,&windows->command,&selection_info[id]);
break;
}
break;
}
break;
}
case ClientMessage:
{
/*
If client window delete message, withdraw command widget.
*/
if (event->xclient.message_type != windows->wm_protocols)
break;
if (*event->xclient.data.l != (int) windows->wm_delete_window)
break;
(void) XWithdrawWindow(display,windows->command.id,
windows->command.screen);
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event->xconfigure.window != windows->command.id)
break;
if (event->xconfigure.send_event != 0)
{
windows->command.x=event->xconfigure.x;
windows->command.y=event->xconfigure.y;
}
if ((event->xconfigure.width == (int) windows->command.width) &&
(event->xconfigure.height == (int) windows->command.height))
break;
windows->command.width=(unsigned int)
MagickMax(event->xconfigure.width,(int) windows->command.min_width);
windows->command.height=(unsigned int)
MagickMax(event->xconfigure.height,(int) windows->command.min_height);
state|=UpdateConfigurationState;
break;
}
case Expose:
{
if (event->xexpose.window != windows->command.id)
break;
if (event->xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case MotionNotify:
{
/*
Return the ID of the highlighted menu entry.
*/
for ( ; ; )
{
for (i=0; i < (int) number_selections; i++)
{
if (i >= (int) windows->command.data)
{
if (selection_info[i].raised ==
MatteIsActive(selection_info[i],event->xmotion))
{
/*
Button status changed.
*/
selection_info[i].raised=!selection_info[i].raised;
XDrawBeveledButton(display,&windows->command,
&selection_info[i]);
}
continue;
}
if (MatteIsActive(selection_info[i],event->xmotion) == MagickFalse)
continue;
submenu_info=selection_info[i];
submenu_info.active=MagickTrue;
toggle_info.raised=MagickTrue;
toggle_info.y=submenu_info.y+(submenu_info.height >> 1)-
(toggle_info.height >> 1);
XDrawTriangleEast(display,&windows->command,&toggle_info);
id=i;
}
XDelay(display,SuspendTime);
if (XCheckMaskEvent(display,ButtonMotionMask,event) == MagickFalse)
break;
while (XCheckMaskEvent(display,ButtonMotionMask,event)) ;
toggle_info.raised=MagickFalse;
if (windows->command.data != 0)
XDrawTriangleEast(display,&windows->command,&toggle_info);
}
break;
}
case MapNotify:
{
windows->command.mapped=MagickTrue;
break;
}
case UnmapNotify:
{
windows->command.mapped=MagickFalse;
break;
}
default:
break;
}
if (state & UpdateConfigurationState)
{
/*
Initialize button information.
*/
assert(selections != (const char **) NULL);
y=tile_height+20;
for (i=0; i < (int) number_selections; i++)
{
XGetWidgetInfo(selections[i],&selection_info[i]);
selection_info[i].center=MagickFalse;
selection_info[i].bevel_width--;
selection_info[i].height=(unsigned int) ((3*height) >> 1);
selection_info[i].x=(QuantumMargin >> 1)+4;
selection_info[i].width=(unsigned int)
(windows->command.width-(selection_info[i].x << 1));
selection_info[i].y=y;
y+=selection_info[i].height+(selection_info[i].bevel_width << 1)+6;
}
XGetWidgetInfo((char *) NULL,&toggle_info);
toggle_info.bevel_width--;
toggle_info.width=(unsigned int)
(((5*height) >> 3)-(toggle_info.bevel_width << 1));
toggle_info.height=toggle_info.width;
toggle_info.x=selection_info[0].x+selection_info[0].width-
toggle_info.width-(QuantumMargin >> 1);
if (windows->command.mapped)
(void) XClearWindow(display,windows->command.id);
}
if (state & RedrawWidgetState)
{
Pixmap
tile_pixmap;
/*
Draw command buttons.
*/
tile_pixmap=XCreatePixmapFromBitmapData(display,windows->command.id,
(char *) tile_bits,tile_width,tile_height,1L,0L,1);
if (tile_pixmap != (Pixmap) NULL)
{
(void) XCopyPlane(display,tile_pixmap,windows->command.id,
windows->command.annotate_context,0,0,tile_width,tile_height,
(int) ((windows->command.width-tile_width) >> 1),10,1L);
(void) XFreePixmap(display,tile_pixmap);
}
for (i=0; i < (int) number_selections; i++)
{
XDrawBeveledButton(display,&windows->command,&selection_info[i]);
if (i >= (int) windows->command.data)
continue;
toggle_info.raised=i == id ? MagickTrue : MagickFalse;
toggle_info.y=selection_info[i].y+
(selection_info[i].height >> 1)-(toggle_info.height >> 1);
XDrawTriangleEast(display,&windows->command,&toggle_info);
}
XHighlightWidget(display,&windows->command,BorderOffset,BorderOffset);
}
return(id);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X C o n f i r m W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XConfirmWidget() displays a Confirm widget with a notice to the user. The
% function returns -1 if Dismiss is pressed, 0 for Cancel, and 1 for Yes.
%
% The format of the XConfirmWidget method is:
%
% int XConfirmWidget(Display *display,XWindows *windows,
% const char *reason,const char *description)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o reason: Specifies the message to display before terminating the
% program.
%
% o description: Specifies any description to the message.
%
*/
MagickExport int XConfirmWidget(Display *display,XWindows *windows,
const char *reason,const char *description)
{
#define CancelButtonText "Cancel"
#define DismissButtonText "Dismiss"
#define YesButtonText "Yes"
int
confirm,
x,
y;
Status
status;
unsigned int
height,
width;
size_t
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
cancel_info,
dismiss_info,
yes_info;
XWindowChanges
window_changes;
/*
Determine Confirm widget attributes.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(reason != (char *) NULL);
assert(description != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",reason);
XCheckRefreshWindows(display,windows);
font_info=windows->widget.font_info;
width=WidgetTextWidth(font_info,CancelButtonText);
if (WidgetTextWidth(font_info,DismissButtonText) > width)
width=WidgetTextWidth(font_info,DismissButtonText);
if (WidgetTextWidth(font_info,YesButtonText) > width)
width=WidgetTextWidth(font_info,YesButtonText);
width<<=1;
if (description != (char *) NULL)
if (WidgetTextWidth(font_info,(char *) description) > width)
width=WidgetTextWidth(font_info,(char *) description);
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position Confirm widget.
*/
windows->widget.width=(unsigned int) (width+9*QuantumMargin);
windows->widget.min_width=(unsigned int) (9*QuantumMargin+
WidgetTextWidth(font_info,CancelButtonText)+
WidgetTextWidth(font_info,DismissButtonText)+
WidgetTextWidth(font_info,YesButtonText));
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int) (12*height);
windows->widget.min_height=(unsigned int) (7*height);
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Confirm widget.
*/
(void) CopyMagickString(windows->widget.name,"Confirm",MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
(unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
confirm=0;
state=UpdateConfigurationState;
XSetCursorState(display,windows,MagickTrue);
do
{
if (state & UpdateConfigurationState)
{
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=(unsigned int) QuantumMargin+
WidgetTextWidth(font_info,CancelButtonText);
cancel_info.height=(unsigned int) ((3*height) >> 1);
cancel_info.x=(int) (windows->widget.width-cancel_info.width-
QuantumMargin);
cancel_info.y=(int) (windows->widget.height-(cancel_info.height << 1));
dismiss_info=cancel_info;
dismiss_info.text=(char *) DismissButtonText;
if (LocaleCompare(description,"Do you want to save it") == 0)
dismiss_info.text=(char *) "Don't Save";
dismiss_info.width=(unsigned int) QuantumMargin+
WidgetTextWidth(font_info,dismiss_info.text);
dismiss_info.x=(int)
((windows->widget.width >> 1)-(dismiss_info.width >> 1));
yes_info=cancel_info;
yes_info.text=(char *) YesButtonText;
if (LocaleCompare(description,"Do you want to save it") == 0)
yes_info.text=(char *) "Save";
yes_info.width=(unsigned int) QuantumMargin+
WidgetTextWidth(font_info,yes_info.text);
if (yes_info.width < cancel_info.width)
yes_info.width=cancel_info.width;
yes_info.x=QuantumMargin;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Confirm widget.
*/
width=WidgetTextWidth(font_info,(char *) reason);
x=(int) ((windows->widget.width >> 1)-(width >> 1));
y=(int) ((windows->widget.height >> 1)-(height << 1));
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,(char *) reason,Extent(reason));
if (description != (char *) NULL)
{
char
question[MaxTextExtent];
(void) CopyMagickString(question,description,MaxTextExtent);
(void) ConcatenateMagickString(question,"?",MaxTextExtent);
width=WidgetTextWidth(font_info,question);
x=(int) ((windows->widget.width >> 1)-(width >> 1));
y+=height;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,question,Extent(question));
}
XDrawBeveledButton(display,&windows->widget,&cancel_info);
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
XDrawBeveledButton(display,&windows->widget,&yes_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~RedrawWidgetState);
}
/*
Wait for next event.
*/
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed No button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
if (MatteIsActive(dismiss_info,event.xbutton))
{
/*
User pressed Dismiss button.
*/
dismiss_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
break;
}
if (MatteIsActive(yes_info,event.xbutton))
{
/*
User pressed Yes button.
*/
yes_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&yes_info);
break;
}
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(cancel_info,event.xbutton))
{
confirm=0;
state|=ExitState;
}
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
}
if (dismiss_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(dismiss_info,event.xbutton))
{
confirm=(-1);
state|=ExitState;
}
dismiss_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
}
if (yes_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(yes_info,event.xbutton))
{
confirm=1;
state|=ExitState;
}
yes_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&yes_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
yes_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&yes_info);
confirm=1;
state|=ExitState;
break;
}
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (state & InactiveWidgetState)
break;
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
if (dismiss_info.raised == MatteIsActive(dismiss_info,event.xmotion))
{
/*
Dismiss button status changed.
*/
dismiss_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
break;
}
if (yes_info.raised == MatteIsActive(yes_info,event.xmotion))
{
/*
Yes button status changed.
*/
yes_info.raised=yes_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&yes_info);
break;
}
break;
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
return(confirm);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X D i a l o g W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XDialogWidget() displays a Dialog widget with a query to the user. The user
% keys a reply and presses the Ok or Cancel button to exit. The typed text is
% returned as the reply function parameter.
%
% The format of the XDialogWidget method is:
%
% int XDialogWidget(Display *display,XWindows *windows,const char *action,
% const char *query,char *reply)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o action: Specifies a pointer to the action of this widget.
%
% o query: Specifies a pointer to the query to present to the user.
%
% o reply: the response from the user is returned in this parameter.
%
*/
MagickExport int XDialogWidget(Display *display,XWindows *windows,
const char *action,const char *query,char *reply)
{
#define CancelButtonText "Cancel"
char
primary_selection[MaxTextExtent];
int
x;
register int
i;
static MagickBooleanType
raised = MagickFalse;
Status
status;
unsigned int
anomaly,
height,
width;
size_t
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
action_info,
cancel_info,
reply_info,
special_info,
text_info;
XWindowChanges
window_changes;
/*
Determine Dialog widget attributes.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(action != (char *) NULL);
assert(query != (char *) NULL);
assert(reply != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
XCheckRefreshWindows(display,windows);
font_info=windows->widget.font_info;
width=WidgetTextWidth(font_info,(char *) action);
if (WidgetTextWidth(font_info,CancelButtonText) > width)
width=WidgetTextWidth(font_info,CancelButtonText);
width+=(3*QuantumMargin) >> 1;
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position Dialog widget.
*/
windows->widget.width=(unsigned int) MagickMax((int) (2*width),(int)
WidgetTextWidth(font_info,(char *) query));
if (windows->widget.width < WidgetTextWidth(font_info,reply))
windows->widget.width=WidgetTextWidth(font_info,reply);
windows->widget.width+=6*QuantumMargin;
windows->widget.min_width=(unsigned int)
(width+28*XTextWidth(font_info,"#",1)+4*QuantumMargin);
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int) (7*height+(QuantumMargin << 1));
windows->widget.min_height=windows->widget.height;
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Dialog widget.
*/
(void) CopyMagickString(windows->widget.name,"Dialog",MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
(unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
anomaly=(LocaleCompare(action,"Background") == 0) ||
(LocaleCompare(action,"New") == 0) ||
(LocaleCompare(action,"Quantize") == 0) ||
(LocaleCompare(action,"Resize") == 0) ||
(LocaleCompare(action,"Save") == 0) ||
(LocaleCompare(action,"Shade") == 0);
state=UpdateConfigurationState;
XSetCursorState(display,windows,MagickTrue);
do
{
if (state & UpdateConfigurationState)
{
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=width;
cancel_info.height=(unsigned int) ((3*height) >> 1);
cancel_info.x=(int)
(windows->widget.width-cancel_info.width-((3*QuantumMargin) >> 1));
cancel_info.y=(int)
(windows->widget.height-cancel_info.height-((3*QuantumMargin) >> 1));
XGetWidgetInfo(action,&action_info);
action_info.width=width;
action_info.height=(unsigned int) ((3*height) >> 1);
action_info.x=cancel_info.x-(cancel_info.width+QuantumMargin+
(action_info.bevel_width << 1));
action_info.y=cancel_info.y;
/*
Initialize reply information.
*/
XGetWidgetInfo(reply,&reply_info);
reply_info.raised=MagickFalse;
reply_info.bevel_width--;
reply_info.width=windows->widget.width-(3*QuantumMargin);
reply_info.height=height << 1;
reply_info.x=(3*QuantumMargin) >> 1;
reply_info.y=action_info.y-reply_info.height-QuantumMargin;
/*
Initialize option information.
*/
XGetWidgetInfo("Dither",&special_info);
special_info.raised=raised;
special_info.bevel_width--;
special_info.width=(unsigned int) QuantumMargin >> 1;
special_info.height=(unsigned int) QuantumMargin >> 1;
special_info.x=reply_info.x;
special_info.y=action_info.y+action_info.height-special_info.height;
if (LocaleCompare(action,"Background") == 0)
special_info.text=(char *) "Backdrop";
if (LocaleCompare(action,"New") == 0)
special_info.text=(char *) "Gradation";
if (LocaleCompare(action,"Resize") == 0)
special_info.text=(char *) "Constrain ratio";
if (LocaleCompare(action,"Save") == 0)
special_info.text=(char *) "Non-progressive";
if (LocaleCompare(action,"Shade") == 0)
special_info.text=(char *) "Color shading";
/*
Initialize text information.
*/
XGetWidgetInfo(query,&text_info);
text_info.width=reply_info.width;
text_info.height=height;
text_info.x=reply_info.x-(QuantumMargin >> 1);
text_info.y=QuantumMargin;
text_info.center=MagickFalse;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Dialog widget.
*/
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawBeveledMatte(display,&windows->widget,&reply_info);
XDrawMatteText(display,&windows->widget,&reply_info);
if (anomaly)
XDrawBeveledButton(display,&windows->widget,&special_info);
XDrawBeveledButton(display,&windows->widget,&action_info);
XDrawBeveledButton(display,&windows->widget,&cancel_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~RedrawWidgetState);
}
/*
Wait for next event.
*/
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
switch (event.type)
{
case ButtonPress:
{
if (anomaly)
if (MatteIsActive(special_info,event.xbutton))
{
/*
Option button status changed.
*/
special_info.raised=!special_info.raised;
XDrawBeveledButton(display,&windows->widget,&special_info);
break;
}
if (MatteIsActive(action_info,event.xbutton))
{
/*
User pressed Action button.
*/
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed Cancel button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
if (event.xbutton.button != Button2)
{
static Time
click_time;
/*
Move text cursor to position of button press.
*/
x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
for (i=1; i <= Extent(reply_info.marker); i++)
if (XTextWidth(font_info,reply_info.marker,i) > x)
break;
reply_info.cursor=reply_info.marker+i-1;
if (event.xbutton.time > (click_time+DoubleClick))
reply_info.highlight=MagickFalse;
else
{
/*
Become the XA_PRIMARY selection owner.
*/
(void) CopyMagickString(primary_selection,reply_info.text,
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
event.xbutton.time);
reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
windows->widget.id ? MagickTrue : MagickFalse;
}
XDrawMatteText(display,&windows->widget,&reply_info);
click_time=event.xbutton.time;
break;
}
/*
Request primary selection.
*/
(void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
windows->widget.id,event.xbutton.time);
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (action_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(action_info,event.xbutton))
state|=ExitState;
action_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&action_info);
}
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(cancel_info,event.xbutton))
{
*reply_info.text='\0';
state|=ExitState;
}
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
*reply_info.text='\0';
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static int
length;
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
length=XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
*(command+length)='\0';
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
state|=ExitState;
break;
}
if (key_symbol == XK_Control_L)
{
state|=ControlState;
break;
}
if (state & ControlState)
switch ((int) key_symbol)
{
case XK_u:
case XK_U:
{
/*
Erase the entire line of text.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
reply_info.marker=reply_info.text;
reply_info.highlight=MagickFalse;
break;
}
default:
break;
}
XEditText(display,&reply_info,key_symbol,command,state);
XDrawMatteText(display,&windows->widget,&reply_info);
break;
}
case KeyRelease:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key release.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if (key_symbol == XK_Control_L)
state&=(~ControlState);
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (state & InactiveWidgetState)
break;
if (action_info.raised == MatteIsActive(action_info,event.xmotion))
{
/*
Action button status changed.
*/
action_info.raised=action_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
break;
}
case SelectionClear:
{
reply_info.highlight=MagickFalse;
XDrawMatteText(display,&windows->widget,&reply_info);
break;
}
case SelectionNotify:
{
Atom
type;
int
format;
unsigned char
*data;
unsigned long
after,
length;
/*
Obtain response from primary selection.
*/
if (event.xselection.property == (Atom) None)
break;
status=XGetWindowProperty(display,event.xselection.requestor,
event.xselection.property,0L,2047L,MagickTrue,XA_STRING,&type,
&format,&length,&after,&data);
if ((status != Success) || (type != XA_STRING) || (format == 32) ||
(length == 0))
break;
if ((Extent(reply_info.text)+length) >= MaxTextExtent)
(void) XBell(display,0);
else
{
/*
Insert primary selection in reply text.
*/
*(data+length)='\0';
XEditText(display,&reply_info,(KeySym) XK_Insert,(char *) data,
state);
XDrawMatteText(display,&windows->widget,&reply_info);
}
(void) XFree((void *) data);
break;
}
case SelectionRequest:
{
XSelectionEvent
notify;
XSelectionRequestEvent
*request;
if (reply_info.highlight == MagickFalse)
break;
/*
Set primary selection.
*/
request=(&(event.xselectionrequest));
(void) XChangeProperty(request->display,request->requestor,
request->property,request->target,8,PropModeReplace,
(unsigned char *) primary_selection,Extent(primary_selection));
notify.type=SelectionNotify;
notify.display=request->display;
notify.requestor=request->requestor;
notify.selection=request->selection;
notify.target=request->target;
notify.time=request->time;
if (request->property == None)
notify.property=request->target;
else
notify.property=request->property;
(void) XSendEvent(request->display,request->requestor,False,0,
(XEvent *) &notify);
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
if (anomaly)
if (special_info.raised)
if (*reply != '\0')
raised=MagickTrue;
return(raised == MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X F i l e B r o w s e r W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XFileBrowserWidget() displays a File Browser widget with a file query to the
% user. The user keys a reply and presses the Action or Cancel button to
% exit. The typed text is returned as the reply function parameter.
%
% The format of the XFileBrowserWidget method is:
%
% void XFileBrowserWidget(Display *display,XWindows *windows,
% const char *action,char *reply)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o action: Specifies a pointer to the action of this widget.
%
% o reply: the response from the user is returned in this parameter.
%
*/
MagickExport void XFileBrowserWidget(Display *display,XWindows *windows,
const char *action,char *reply)
{
#define CancelButtonText "Cancel"
#define DirectoryText "Directory:"
#define FilenameText "File name:"
#define GrabButtonText "Grab"
#define FormatButtonText "Format"
#define HomeButtonText "Home"
#define UpButtonText "Up"
char
*directory,
**filelist,
home_directory[MaxTextExtent],
primary_selection[MaxTextExtent],
text[MaxTextExtent],
working_path[MaxTextExtent];
int
x,
y;
register ssize_t
i;
static char
glob_pattern[MaxTextExtent] = "*",
format[MaxTextExtent] = "miff";
static MagickStatusType
mask = (MagickStatusType) (CWWidth | CWHeight | CWX | CWY);
Status
status;
unsigned int
anomaly,
height,
text_width,
visible_files,
width;
size_t
delay,
files,
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
action_info,
cancel_info,
expose_info,
special_info,
list_info,
home_info,
north_info,
reply_info,
scroll_info,
selection_info,
slider_info,
south_info,
text_info,
up_info;
XWindowChanges
window_changes;
/*
Read filelist from current directory.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(action != (char *) NULL);
assert(reply != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
XSetCursorState(display,windows,MagickTrue);
XCheckRefreshWindows(display,windows);
directory=getcwd(home_directory,MaxTextExtent);
(void) directory;
(void) CopyMagickString(working_path,home_directory,MaxTextExtent);
filelist=ListFiles(working_path,glob_pattern,&files);
if (filelist == (char **) NULL)
{
/*
Directory read failed.
*/
XNoticeWidget(display,windows,"Unable to read directory:",working_path);
(void) XDialogWidget(display,windows,action,"Enter filename:",reply);
return;
}
/*
Determine File Browser widget attributes.
*/
font_info=windows->widget.font_info;
text_width=0;
for (i=0; i < (ssize_t) files; i++)
if (WidgetTextWidth(font_info,filelist[i]) > text_width)
text_width=WidgetTextWidth(font_info,filelist[i]);
width=WidgetTextWidth(font_info,(char *) action);
if (WidgetTextWidth(font_info,GrabButtonText) > width)
width=WidgetTextWidth(font_info,GrabButtonText);
if (WidgetTextWidth(font_info,FormatButtonText) > width)
width=WidgetTextWidth(font_info,FormatButtonText);
if (WidgetTextWidth(font_info,CancelButtonText) > width)
width=WidgetTextWidth(font_info,CancelButtonText);
if (WidgetTextWidth(font_info,HomeButtonText) > width)
width=WidgetTextWidth(font_info,HomeButtonText);
if (WidgetTextWidth(font_info,UpButtonText) > width)
width=WidgetTextWidth(font_info,UpButtonText);
width+=QuantumMargin;
if (WidgetTextWidth(font_info,DirectoryText) > width)
width=WidgetTextWidth(font_info,DirectoryText);
if (WidgetTextWidth(font_info,FilenameText) > width)
width=WidgetTextWidth(font_info,FilenameText);
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position File Browser widget.
*/
windows->widget.width=width+MagickMin((int) text_width,(int) MaxTextWidth)+
6*QuantumMargin;
windows->widget.min_width=width+MinTextWidth+4*QuantumMargin;
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int)
(((81*height) >> 2)+((13*QuantumMargin) >> 1)+4);
windows->widget.min_height=(unsigned int)
(((23*height) >> 1)+((13*QuantumMargin) >> 1)+4);
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map File Browser widget.
*/
(void) CopyMagickString(windows->widget.name,"Browse and Select a File",
MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,
windows->widget.screen,mask,&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
XGetWidgetInfo((char *) NULL,&slider_info);
XGetWidgetInfo((char *) NULL,&north_info);
XGetWidgetInfo((char *) NULL,&south_info);
XGetWidgetInfo((char *) NULL,&expose_info);
visible_files=0;
anomaly=(LocaleCompare(action,"Composite") == 0) ||
(LocaleCompare(action,"Open") == 0) || (LocaleCompare(action,"Map") == 0);
*reply='\0';
delay=SuspendTime << 2;
state=UpdateConfigurationState;
do
{
if (state & UpdateConfigurationState)
{
int
id;
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=width;
cancel_info.height=(unsigned int) ((3*height) >> 1);
cancel_info.x=(int)
(windows->widget.width-cancel_info.width-QuantumMargin-2);
cancel_info.y=(int)
(windows->widget.height-cancel_info.height-QuantumMargin);
XGetWidgetInfo(action,&action_info);
action_info.width=width;
action_info.height=(unsigned int) ((3*height) >> 1);
action_info.x=cancel_info.x-(cancel_info.width+(QuantumMargin >> 1)+
(action_info.bevel_width << 1));
action_info.y=cancel_info.y;
XGetWidgetInfo(GrabButtonText,&special_info);
special_info.width=width;
special_info.height=(unsigned int) ((3*height) >> 1);
special_info.x=action_info.x-(action_info.width+(QuantumMargin >> 1)+
(special_info.bevel_width << 1));
special_info.y=action_info.y;
if (anomaly == MagickFalse)
{
register char
*p;
special_info.text=(char *) FormatButtonText;
p=reply+Extent(reply)-1;
while ((p > (reply+1)) && (*(p-1) != '.'))
p--;
if ((p > (reply+1)) && (*(p-1) == '.'))
(void) CopyMagickString(format,p,MaxTextExtent);
}
XGetWidgetInfo(UpButtonText,&up_info);
up_info.width=width;
up_info.height=(unsigned int) ((3*height) >> 1);
up_info.x=QuantumMargin;
up_info.y=((5*QuantumMargin) >> 1)+height;
XGetWidgetInfo(HomeButtonText,&home_info);
home_info.width=width;
home_info.height=(unsigned int) ((3*height) >> 1);
home_info.x=QuantumMargin;
home_info.y=up_info.y+up_info.height+QuantumMargin;
/*
Initialize reply information.
*/
XGetWidgetInfo(reply,&reply_info);
reply_info.raised=MagickFalse;
reply_info.bevel_width--;
reply_info.width=windows->widget.width-width-((6*QuantumMargin) >> 1);
reply_info.height=height << 1;
reply_info.x=(int) (width+(QuantumMargin << 1));
reply_info.y=action_info.y-reply_info.height-QuantumMargin;
/*
Initialize scroll information.
*/
XGetWidgetInfo((char *) NULL,&scroll_info);
scroll_info.bevel_width--;
scroll_info.width=height;
scroll_info.height=(unsigned int)
(reply_info.y-up_info.y-(QuantumMargin >> 1));
scroll_info.x=reply_info.x+(reply_info.width-scroll_info.width);
scroll_info.y=up_info.y-reply_info.bevel_width;
scroll_info.raised=MagickFalse;
scroll_info.trough=MagickTrue;
north_info=scroll_info;
north_info.raised=MagickTrue;
north_info.width-=(north_info.bevel_width << 1);
north_info.height=north_info.width-1;
north_info.x+=north_info.bevel_width;
north_info.y+=north_info.bevel_width;
south_info=north_info;
south_info.y=scroll_info.y+scroll_info.height-scroll_info.bevel_width-
south_info.height;
id=slider_info.id;
slider_info=north_info;
slider_info.id=id;
slider_info.width-=2;
slider_info.min_y=north_info.y+north_info.height+north_info.bevel_width+
slider_info.bevel_width+2;
slider_info.height=scroll_info.height-((slider_info.min_y-
scroll_info.y+1) << 1)+4;
visible_files=scroll_info.height/(height+(height >> 3));
if (files > visible_files)
slider_info.height=(unsigned int)
((visible_files*slider_info.height)/files);
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.x=scroll_info.x+slider_info.bevel_width+1;
slider_info.y=slider_info.min_y;
expose_info=scroll_info;
expose_info.y=slider_info.y;
/*
Initialize list information.
*/
XGetWidgetInfo((char *) NULL,&list_info);
list_info.raised=MagickFalse;
list_info.bevel_width--;
list_info.width=(unsigned int)
(scroll_info.x-reply_info.x-(QuantumMargin >> 1));
list_info.height=scroll_info.height;
list_info.x=reply_info.x;
list_info.y=scroll_info.y;
if (windows->widget.mapped == MagickFalse)
state|=JumpListState;
/*
Initialize text information.
*/
*text='\0';
XGetWidgetInfo(text,&text_info);
text_info.center=MagickFalse;
text_info.width=reply_info.width;
text_info.height=height;
text_info.x=list_info.x-(QuantumMargin >> 1);
text_info.y=QuantumMargin;
/*
Initialize selection information.
*/
XGetWidgetInfo((char *) NULL,&selection_info);
selection_info.center=MagickFalse;
selection_info.width=list_info.width;
selection_info.height=(unsigned int) ((9*height) >> 3);
selection_info.x=list_info.x;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw File Browser window.
*/
x=QuantumMargin;
y=text_info.y+((text_info.height-height) >> 1)+font_info->ascent;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,DirectoryText,
Extent(DirectoryText));
(void) CopyMagickString(text_info.text,working_path,MaxTextExtent);
(void) ConcatenateMagickString(text_info.text,DirectorySeparator,
MaxTextExtent);
(void) ConcatenateMagickString(text_info.text,glob_pattern,
MaxTextExtent);
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawBeveledButton(display,&windows->widget,&up_info);
XDrawBeveledButton(display,&windows->widget,&home_info);
XDrawBeveledMatte(display,&windows->widget,&list_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
x=QuantumMargin;
y=reply_info.y+((reply_info.height-height) >> 1)+font_info->ascent;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,FilenameText,
Extent(FilenameText));
XDrawBeveledMatte(display,&windows->widget,&reply_info);
XDrawMatteText(display,&windows->widget,&reply_info);
XDrawBeveledButton(display,&windows->widget,&special_info);
XDrawBeveledButton(display,&windows->widget,&action_info);
XDrawBeveledButton(display,&windows->widget,&cancel_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
selection_info.id=(~0);
state|=RedrawListState;
state&=(~RedrawWidgetState);
}
if (state & UpdateListState)
{
char
**checklist;
size_t
number_files;
/*
Update file list.
*/
checklist=ListFiles(working_path,glob_pattern,&number_files);
if (checklist == (char **) NULL)
{
/*
Reply is a filename, exit.
*/
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
for (i=0; i < (ssize_t) files; i++)
filelist[i]=DestroyString(filelist[i]);
if (filelist != (char **) NULL)
filelist=(char **) RelinquishMagickMemory(filelist);
filelist=checklist;
files=number_files;
/*
Update file list.
*/
slider_info.height=
scroll_info.height-((slider_info.min_y-scroll_info.y+1) << 1)+1;
if (files > visible_files)
slider_info.height=(unsigned int)
((visible_files*slider_info.height)/files);
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.id=0;
slider_info.y=slider_info.min_y;
expose_info.y=slider_info.y;
selection_info.id=(~0);
list_info.id=(~0);
state|=RedrawListState;
/*
Redraw directory name & reply.
*/
if (IsGlob(reply_info.text) == MagickFalse)
{
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
}
(void) CopyMagickString(text_info.text,working_path,MaxTextExtent);
(void) ConcatenateMagickString(text_info.text,DirectorySeparator,
MaxTextExtent);
(void) ConcatenateMagickString(text_info.text,glob_pattern,
MaxTextExtent);
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawMatteText(display,&windows->widget,&reply_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~UpdateListState);
}
if (state & JumpListState)
{
/*
Jump scroll to match user filename.
*/
list_info.id=(~0);
for (i=0; i < (ssize_t) files; i++)
if (LocaleCompare(filelist[i],reply) >= 0)
{
list_info.id=(int)
(LocaleCompare(filelist[i],reply) == 0 ? i : ~0);
break;
}
if ((i < (ssize_t) slider_info.id) ||
(i >= (ssize_t) (slider_info.id+visible_files)))
slider_info.id=(int) i-(visible_files >> 1);
selection_info.id=(~0);
state|=RedrawListState;
state&=(~JumpListState);
}
if (state & RedrawListState)
{
/*
Determine slider id and position.
*/
if (slider_info.id >= (int) (files-visible_files))
slider_info.id=(int) (files-visible_files);
if ((slider_info.id < 0) || (files <= visible_files))
slider_info.id=0;
slider_info.y=slider_info.min_y;
if (files > 0)
slider_info.y+=(int) (slider_info.id*(slider_info.max_y-
slider_info.min_y+1)/files);
if (slider_info.id != selection_info.id)
{
/*
Redraw scroll bar and file names.
*/
selection_info.id=slider_info.id;
selection_info.y=list_info.y+(height >> 3)+2;
for (i=0; i < (ssize_t) visible_files; i++)
{
selection_info.raised=(int) (slider_info.id+i) != list_info.id ?
MagickTrue : MagickFalse;
selection_info.text=(char *) NULL;
if ((slider_info.id+i) < (ssize_t) files)
selection_info.text=filelist[slider_info.id+i];
XDrawWidgetText(display,&windows->widget,&selection_info);
selection_info.y+=(int) selection_info.height;
}
/*
Update slider.
*/
if (slider_info.y > expose_info.y)
{
expose_info.height=(unsigned int) slider_info.y-expose_info.y;
expose_info.y=slider_info.y-expose_info.height-
slider_info.bevel_width-1;
}
else
{
expose_info.height=(unsigned int) expose_info.y-slider_info.y;
expose_info.y=slider_info.y+slider_info.height+
slider_info.bevel_width+1;
}
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawMatte(display,&windows->widget,&expose_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
expose_info.y=slider_info.y;
}
state&=(~RedrawListState);
}
/*
Wait for next event.
*/
if (north_info.raised && south_info.raised)
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
else
{
/*
Brief delay before advancing scroll bar.
*/
XDelay(display,delay);
delay=SuspendTime;
(void) XCheckIfEvent(display,&event,XScreenEvent,(char *) windows);
if (north_info.raised == MagickFalse)
if (slider_info.id > 0)
{
/*
Move slider up.
*/
slider_info.id--;
state|=RedrawListState;
}
if (south_info.raised == MagickFalse)
if (slider_info.id < (int) files)
{
/*
Move slider down.
*/
slider_info.id++;
state|=RedrawListState;
}
if (event.type != ButtonRelease)
continue;
}
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(slider_info,event.xbutton))
{
/*
Track slider.
*/
slider_info.active=MagickTrue;
break;
}
if (MatteIsActive(north_info,event.xbutton))
if (slider_info.id > 0)
{
/*
Move slider up.
*/
north_info.raised=MagickFalse;
slider_info.id--;
state|=RedrawListState;
break;
}
if (MatteIsActive(south_info,event.xbutton))
if (slider_info.id < (int) files)
{
/*
Move slider down.
*/
south_info.raised=MagickFalse;
slider_info.id++;
state|=RedrawListState;
break;
}
if (MatteIsActive(scroll_info,event.xbutton))
{
/*
Move slider.
*/
if (event.xbutton.y < slider_info.y)
slider_info.id-=(visible_files-1);
else
slider_info.id+=(visible_files-1);
state|=RedrawListState;
break;
}
if (MatteIsActive(list_info,event.xbutton))
{
int
id;
/*
User pressed file matte.
*/
id=slider_info.id+(event.xbutton.y-(list_info.y+(height >> 1))+1)/
selection_info.height;
if (id >= (int) files)
break;
(void) CopyMagickString(reply_info.text,filelist[id],MaxTextExtent);
reply_info.highlight=MagickFalse;
reply_info.marker=reply_info.text;
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,&windows->widget,&reply_info);
if (id == list_info.id)
{
register char
*p;
p=reply_info.text+strlen(reply_info.text)-1;
if (*p == *DirectorySeparator)
ChopPathComponents(reply_info.text,1);
(void) ConcatenateMagickString(working_path,DirectorySeparator,
MaxTextExtent);
(void) ConcatenateMagickString(working_path,reply_info.text,
MaxTextExtent);
*reply='\0';
state|=UpdateListState;
}
selection_info.id=(~0);
list_info.id=id;
state|=RedrawListState;
break;
}
if (MatteIsActive(up_info,event.xbutton))
{
/*
User pressed Up button.
*/
up_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&up_info);
break;
}
if (MatteIsActive(home_info,event.xbutton))
{
/*
User pressed Home button.
*/
home_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&home_info);
break;
}
if (MatteIsActive(special_info,event.xbutton))
{
/*
User pressed Special button.
*/
special_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&special_info);
break;
}
if (MatteIsActive(action_info,event.xbutton))
{
/*
User pressed action button.
*/
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed Cancel button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
if (event.xbutton.button != Button2)
{
static Time
click_time;
/*
Move text cursor to position of button press.
*/
x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
for (i=1; i <= (ssize_t) Extent(reply_info.marker); i++)
if (XTextWidth(font_info,reply_info.marker,(int) i) > x)
break;
reply_info.cursor=reply_info.marker+i-1;
if (event.xbutton.time > (click_time+DoubleClick))
reply_info.highlight=MagickFalse;
else
{
/*
Become the XA_PRIMARY selection owner.
*/
(void) CopyMagickString(primary_selection,reply_info.text,
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
event.xbutton.time);
reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
windows->widget.id ? MagickTrue : MagickFalse;
}
XDrawMatteText(display,&windows->widget,&reply_info);
click_time=event.xbutton.time;
break;
}
/*
Request primary selection.
*/
(void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
windows->widget.id,event.xbutton.time);
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (north_info.raised == MagickFalse)
{
/*
User released up button.
*/
delay=SuspendTime << 2;
north_info.raised=MagickTrue;
XDrawTriangleNorth(display,&windows->widget,&north_info);
}
if (south_info.raised == MagickFalse)
{
/*
User released down button.
*/
delay=SuspendTime << 2;
south_info.raised=MagickTrue;
XDrawTriangleSouth(display,&windows->widget,&south_info);
}
if (slider_info.active)
{
/*
Stop tracking slider.
*/
slider_info.active=MagickFalse;
break;
}
if (up_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(up_info,event.xbutton))
{
ChopPathComponents(working_path,1);
if (*working_path == '\0')
(void) CopyMagickString(working_path,DirectorySeparator,
MaxTextExtent);
state|=UpdateListState;
}
up_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&up_info);
}
if (home_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(home_info,event.xbutton))
{
(void) CopyMagickString(working_path,home_directory,
MaxTextExtent);
state|=UpdateListState;
}
home_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&home_info);
}
if (special_info.raised == MagickFalse)
{
if (anomaly == MagickFalse)
{
char
**formats;
ExceptionInfo
*exception;
size_t
number_formats;
/*
Let user select image format.
*/
exception=AcquireExceptionInfo();
formats=GetMagickList("*",&number_formats,exception);
exception=DestroyExceptionInfo(exception);
(void) XCheckDefineCursor(display,windows->widget.id,
windows->widget.busy_cursor);
windows->popup.x=windows->widget.x+60;
windows->popup.y=windows->widget.y+60;
XListBrowserWidget(display,windows,&windows->popup,
(const char **) formats,"Select","Select image format type:",
format);
XSetCursorState(display,windows,MagickTrue);
(void) XCheckDefineCursor(display,windows->widget.id,
windows->widget.cursor);
LocaleLower(format);
AppendImageFormat(format,reply_info.text);
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,&windows->widget,&reply_info);
special_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&special_info);
for (i=0; i < (ssize_t) number_formats; i++)
formats[i]=DestroyString(formats[i]);
formats=(char **) RelinquishMagickMemory(formats);
break;
}
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(special_info,event.xbutton))
{
(void) CopyMagickString(working_path,"x:",MaxTextExtent);
state|=ExitState;
}
special_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&special_info);
}
if (action_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
{
if (MatteIsActive(action_info,event.xbutton))
{
if (*reply_info.text == '\0')
(void) XBell(display,0);
else
state|=ExitState;
}
}
action_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&action_info);
}
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(cancel_info,event.xbutton))
{
*reply_info.text='\0';
*reply='\0';
state|=ExitState;
}
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
*reply_info.text='\0';
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static int
length;
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
length=XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
*(command+length)='\0';
if (AreaIsActive(scroll_info,event.xkey))
{
/*
Move slider.
*/
switch ((int) key_symbol)
{
case XK_Home:
case XK_KP_Home:
{
slider_info.id=0;
break;
}
case XK_Up:
case XK_KP_Up:
{
slider_info.id--;
break;
}
case XK_Down:
case XK_KP_Down:
{
slider_info.id++;
break;
}
case XK_Prior:
case XK_KP_Prior:
{
slider_info.id-=visible_files;
break;
}
case XK_Next:
case XK_KP_Next:
{
slider_info.id+=visible_files;
break;
}
case XK_End:
case XK_KP_End:
{
slider_info.id=(int) files;
break;
}
}
state|=RedrawListState;
break;
}
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
/*
Read new directory or glob patterm.
*/
if (*reply_info.text == '\0')
break;
if (IsGlob(reply_info.text))
(void) CopyMagickString(glob_pattern,reply_info.text,
MaxTextExtent);
else
{
(void) ConcatenateMagickString(working_path,DirectorySeparator,
MaxTextExtent);
(void) ConcatenateMagickString(working_path,reply_info.text,
MaxTextExtent);
if (*working_path == '~')
ExpandFilename(working_path);
*reply='\0';
}
state|=UpdateListState;
break;
}
if (key_symbol == XK_Control_L)
{
state|=ControlState;
break;
}
if (state & ControlState)
switch ((int) key_symbol)
{
case XK_u:
case XK_U:
{
/*
Erase the entire line of text.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
reply_info.marker=reply_info.text;
reply_info.highlight=MagickFalse;
break;
}
default:
break;
}
XEditText(display,&reply_info,key_symbol,command,state);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=JumpListState;
break;
}
case KeyRelease:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key release.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if (key_symbol == XK_Control_L)
state&=(~ControlState);
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MapNotify:
{
mask&=(~CWX);
mask&=(~CWY);
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (slider_info.active)
{
/*
Move slider matte.
*/
slider_info.y=event.xmotion.y-
((slider_info.height+slider_info.bevel_width) >> 1)+1;
if (slider_info.y < slider_info.min_y)
slider_info.y=slider_info.min_y;
if (slider_info.y > slider_info.max_y)
slider_info.y=slider_info.max_y;
slider_info.id=0;
if (slider_info.y != slider_info.min_y)
slider_info.id=(int) ((files*(slider_info.y-slider_info.min_y+1))/
(slider_info.max_y-slider_info.min_y+1));
state|=RedrawListState;
break;
}
if (state & InactiveWidgetState)
break;
if (up_info.raised == MatteIsActive(up_info,event.xmotion))
{
/*
Up button status changed.
*/
up_info.raised=!up_info.raised;
XDrawBeveledButton(display,&windows->widget,&up_info);
break;
}
if (home_info.raised == MatteIsActive(home_info,event.xmotion))
{
/*
Home button status changed.
*/
home_info.raised=!home_info.raised;
XDrawBeveledButton(display,&windows->widget,&home_info);
break;
}
if (special_info.raised == MatteIsActive(special_info,event.xmotion))
{
/*
Grab button status changed.
*/
special_info.raised=!special_info.raised;
XDrawBeveledButton(display,&windows->widget,&special_info);
break;
}
if (action_info.raised == MatteIsActive(action_info,event.xmotion))
{
/*
Action button status changed.
*/
action_info.raised=action_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
break;
}
case SelectionClear:
{
reply_info.highlight=MagickFalse;
XDrawMatteText(display,&windows->widget,&reply_info);
break;
}
case SelectionNotify:
{
Atom
type;
int
format;
unsigned char
*data;
unsigned long
after,
length;
/*
Obtain response from primary selection.
*/
if (event.xselection.property == (Atom) None)
break;
status=XGetWindowProperty(display,event.xselection.requestor,
event.xselection.property,0L,2047L,MagickTrue,XA_STRING,&type,
&format,&length,&after,&data);
if ((status != Success) || (type != XA_STRING) || (format == 32) ||
(length == 0))
break;
if ((Extent(reply_info.text)+length) >= MaxTextExtent)
(void) XBell(display,0);
else
{
/*
Insert primary selection in reply text.
*/
*(data+length)='\0';
XEditText(display,&reply_info,(KeySym) XK_Insert,(char *) data,
state);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=JumpListState;
state|=RedrawActionState;
}
(void) XFree((void *) data);
break;
}
case SelectionRequest:
{
XSelectionEvent
notify;
XSelectionRequestEvent
*request;
if (reply_info.highlight == MagickFalse)
break;
/*
Set primary selection.
*/
request=(&(event.xselectionrequest));
(void) XChangeProperty(request->display,request->requestor,
request->property,request->target,8,PropModeReplace,
(unsigned char *) primary_selection,Extent(primary_selection));
notify.type=SelectionNotify;
notify.display=request->display;
notify.requestor=request->requestor;
notify.selection=request->selection;
notify.target=request->target;
notify.time=request->time;
if (request->property == None)
notify.property=request->target;
else
notify.property=request->property;
(void) XSendEvent(request->display,request->requestor,False,0,
(XEvent *) &notify);
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
/*
Free file list.
*/
for (i=0; i < (ssize_t) files; i++)
filelist[i]=DestroyString(filelist[i]);
if (filelist != (char **) NULL)
filelist=(char **) RelinquishMagickMemory(filelist);
if (*reply != '\0')
{
(void) ConcatenateMagickString(working_path,DirectorySeparator,
MaxTextExtent);
(void) ConcatenateMagickString(working_path,reply,MaxTextExtent);
}
(void) CopyMagickString(reply,working_path,MaxTextExtent);
if (*reply == '~')
ExpandFilename(reply);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X F o n t B r o w s e r W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XFontBrowserWidget() displays a Font Browser widget with a font query to the
% user. The user keys a reply and presses the Action or Cancel button to
% exit. The typed text is returned as the reply function parameter.
%
% The format of the XFontBrowserWidget method is:
%
% void XFontBrowserWidget(Display *display,XWindows *windows,
% const char *action,char *reply)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o action: Specifies a pointer to the action of this widget.
%
% o reply: the response from the user is returned in this parameter.
%
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int FontCompare(const void *x,const void *y)
{
register char
*p,
*q;
p=(char *) *((char **) x);
q=(char *) *((char **) y);
while ((*p != '\0') && (*q != '\0') && (*p == *q))
{
p++;
q++;
}
return(*p-(*q));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport void XFontBrowserWidget(Display *display,XWindows *windows,
const char *action,char *reply)
{
#define BackButtonText "Back"
#define CancelButtonText "Cancel"
#define FontnameText "Name:"
#define FontPatternText "Pattern:"
#define ResetButtonText "Reset"
char
back_pattern[MaxTextExtent],
**fontlist,
**listhead,
primary_selection[MaxTextExtent],
reset_pattern[MaxTextExtent],
text[MaxTextExtent];
int
fonts,
x,
y;
register int
i;
static char
glob_pattern[MaxTextExtent] = "*";
static MagickStatusType
mask = (MagickStatusType) (CWWidth | CWHeight | CWX | CWY);
Status
status;
unsigned int
height,
text_width,
visible_fonts,
width;
size_t
delay,
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
action_info,
back_info,
cancel_info,
expose_info,
list_info,
mode_info,
north_info,
reply_info,
reset_info,
scroll_info,
selection_info,
slider_info,
south_info,
text_info;
XWindowChanges
window_changes;
/*
Get font list and sort in ascending order.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(action != (char *) NULL);
assert(reply != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
XSetCursorState(display,windows,MagickTrue);
XCheckRefreshWindows(display,windows);
(void) CopyMagickString(back_pattern,glob_pattern,MaxTextExtent);
(void) CopyMagickString(reset_pattern,"*",MaxTextExtent);
fontlist=XListFonts(display,glob_pattern,32767,&fonts);
if (fonts == 0)
{
/*
Pattern failed, obtain all the fonts.
*/
XNoticeWidget(display,windows,"Unable to obtain fonts names:",
glob_pattern);
(void) CopyMagickString(glob_pattern,"*",MaxTextExtent);
fontlist=XListFonts(display,glob_pattern,32767,&fonts);
if (fontlist == (char **) NULL)
{
XNoticeWidget(display,windows,"Unable to obtain fonts names:",
glob_pattern);
return;
}
}
/*
Sort font list in ascending order.
*/
listhead=fontlist;
fontlist=(char **) AcquireQuantumMemory((size_t) fonts,sizeof(*fontlist));
if (fontlist == (char **) NULL)
{
XNoticeWidget(display,windows,"MemoryAllocationFailed",
"UnableToViewFonts");
return;
}
for (i=0; i < fonts; i++)
fontlist[i]=listhead[i];
qsort((void *) fontlist,(size_t) fonts,sizeof(*fontlist),FontCompare);
/*
Determine Font Browser widget attributes.
*/
font_info=windows->widget.font_info;
text_width=0;
for (i=0; i < fonts; i++)
if (WidgetTextWidth(font_info,fontlist[i]) > text_width)
text_width=WidgetTextWidth(font_info,fontlist[i]);
width=WidgetTextWidth(font_info,(char *) action);
if (WidgetTextWidth(font_info,CancelButtonText) > width)
width=WidgetTextWidth(font_info,CancelButtonText);
if (WidgetTextWidth(font_info,ResetButtonText) > width)
width=WidgetTextWidth(font_info,ResetButtonText);
if (WidgetTextWidth(font_info,BackButtonText) > width)
width=WidgetTextWidth(font_info,BackButtonText);
width+=QuantumMargin;
if (WidgetTextWidth(font_info,FontPatternText) > width)
width=WidgetTextWidth(font_info,FontPatternText);
if (WidgetTextWidth(font_info,FontnameText) > width)
width=WidgetTextWidth(font_info,FontnameText);
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position Font Browser widget.
*/
windows->widget.width=width+MagickMin((int) text_width,(int) MaxTextWidth)+
6*QuantumMargin;
windows->widget.min_width=width+MinTextWidth+4*QuantumMargin;
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int)
(((85*height) >> 2)+((13*QuantumMargin) >> 1)+4);
windows->widget.min_height=(unsigned int)
(((27*height) >> 1)+((13*QuantumMargin) >> 1)+4);
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Font Browser widget.
*/
(void) CopyMagickString(windows->widget.name,"Browse and Select a Font",
MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,
windows->widget.screen,mask,&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
XGetWidgetInfo((char *) NULL,&slider_info);
XGetWidgetInfo((char *) NULL,&north_info);
XGetWidgetInfo((char *) NULL,&south_info);
XGetWidgetInfo((char *) NULL,&expose_info);
visible_fonts=0;
delay=SuspendTime << 2;
state=UpdateConfigurationState;
do
{
if (state & UpdateConfigurationState)
{
int
id;
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=width;
cancel_info.height=(unsigned int) ((3*height) >> 1);
cancel_info.x=(int)
(windows->widget.width-cancel_info.width-QuantumMargin-2);
cancel_info.y=(int)
(windows->widget.height-cancel_info.height-QuantumMargin);
XGetWidgetInfo(action,&action_info);
action_info.width=width;
action_info.height=(unsigned int) ((3*height) >> 1);
action_info.x=cancel_info.x-(cancel_info.width+(QuantumMargin >> 1)+
(action_info.bevel_width << 1));
action_info.y=cancel_info.y;
XGetWidgetInfo(BackButtonText,&back_info);
back_info.width=width;
back_info.height=(unsigned int) ((3*height) >> 1);
back_info.x=QuantumMargin;
back_info.y=((5*QuantumMargin) >> 1)+height;
XGetWidgetInfo(ResetButtonText,&reset_info);
reset_info.width=width;
reset_info.height=(unsigned int) ((3*height) >> 1);
reset_info.x=QuantumMargin;
reset_info.y=back_info.y+back_info.height+QuantumMargin;
/*
Initialize reply information.
*/
XGetWidgetInfo(reply,&reply_info);
reply_info.raised=MagickFalse;
reply_info.bevel_width--;
reply_info.width=windows->widget.width-width-((6*QuantumMargin) >> 1);
reply_info.height=height << 1;
reply_info.x=(int) (width+(QuantumMargin << 1));
reply_info.y=action_info.y-(action_info.height << 1)-QuantumMargin;
/*
Initialize mode information.
*/
XGetWidgetInfo(reply,&mode_info);
mode_info.bevel_width=0;
mode_info.width=(unsigned int)
(action_info.x-reply_info.x-QuantumMargin);
mode_info.height=action_info.height << 1;
mode_info.x=reply_info.x;
mode_info.y=action_info.y-action_info.height+action_info.bevel_width;
/*
Initialize scroll information.
*/
XGetWidgetInfo((char *) NULL,&scroll_info);
scroll_info.bevel_width--;
scroll_info.width=height;
scroll_info.height=(unsigned int)
(reply_info.y-back_info.y-(QuantumMargin >> 1));
scroll_info.x=reply_info.x+(reply_info.width-scroll_info.width);
scroll_info.y=back_info.y-reply_info.bevel_width;
scroll_info.raised=MagickFalse;
scroll_info.trough=MagickTrue;
north_info=scroll_info;
north_info.raised=MagickTrue;
north_info.width-=(north_info.bevel_width << 1);
north_info.height=north_info.width-1;
north_info.x+=north_info.bevel_width;
north_info.y+=north_info.bevel_width;
south_info=north_info;
south_info.y=scroll_info.y+scroll_info.height-scroll_info.bevel_width-
south_info.height;
id=slider_info.id;
slider_info=north_info;
slider_info.id=id;
slider_info.width-=2;
slider_info.min_y=north_info.y+north_info.height+north_info.bevel_width+
slider_info.bevel_width+2;
slider_info.height=scroll_info.height-((slider_info.min_y-
scroll_info.y+1) << 1)+4;
visible_fonts=scroll_info.height/(height+(height >> 3));
if (fonts > (int) visible_fonts)
slider_info.height=(visible_fonts*slider_info.height)/fonts;
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.x=scroll_info.x+slider_info.bevel_width+1;
slider_info.y=slider_info.min_y;
expose_info=scroll_info;
expose_info.y=slider_info.y;
/*
Initialize list information.
*/
XGetWidgetInfo((char *) NULL,&list_info);
list_info.raised=MagickFalse;
list_info.bevel_width--;
list_info.width=(unsigned int)
(scroll_info.x-reply_info.x-(QuantumMargin >> 1));
list_info.height=scroll_info.height;
list_info.x=reply_info.x;
list_info.y=scroll_info.y;
if (windows->widget.mapped == MagickFalse)
state|=JumpListState;
/*
Initialize text information.
*/
*text='\0';
XGetWidgetInfo(text,&text_info);
text_info.center=MagickFalse;
text_info.width=reply_info.width;
text_info.height=height;
text_info.x=list_info.x-(QuantumMargin >> 1);
text_info.y=QuantumMargin;
/*
Initialize selection information.
*/
XGetWidgetInfo((char *) NULL,&selection_info);
selection_info.center=MagickFalse;
selection_info.width=list_info.width;
selection_info.height=(unsigned int) ((9*height) >> 3);
selection_info.x=list_info.x;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Font Browser window.
*/
x=QuantumMargin;
y=text_info.y+((text_info.height-height) >> 1)+font_info->ascent;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,FontPatternText,
Extent(FontPatternText));
(void) CopyMagickString(text_info.text,glob_pattern,MaxTextExtent);
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawBeveledButton(display,&windows->widget,&back_info);
XDrawBeveledButton(display,&windows->widget,&reset_info);
XDrawBeveledMatte(display,&windows->widget,&list_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
x=QuantumMargin;
y=reply_info.y+((reply_info.height-height) >> 1)+font_info->ascent;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,FontnameText,
Extent(FontnameText));
XDrawBeveledMatte(display,&windows->widget,&reply_info);
XDrawMatteText(display,&windows->widget,&reply_info);
XDrawBeveledButton(display,&windows->widget,&action_info);
XDrawBeveledButton(display,&windows->widget,&cancel_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
selection_info.id=(~0);
state|=RedrawActionState;
state|=RedrawListState;
state&=(~RedrawWidgetState);
}
if (state & UpdateListState)
{
char
**checklist;
int
number_fonts;
/*
Update font list.
*/
checklist=XListFonts(display,glob_pattern,32767,&number_fonts);
if (checklist == (char **) NULL)
{
if ((strchr(glob_pattern,'*') == (char *) NULL) &&
(strchr(glob_pattern,'?') == (char *) NULL))
{
/*
Might be a scaleable font-- exit.
*/
(void) CopyMagickString(reply,glob_pattern,MaxTextExtent);
(void) CopyMagickString(glob_pattern,back_pattern,MaxTextExtent);
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
(void) CopyMagickString(glob_pattern,back_pattern,MaxTextExtent);
(void) XBell(display,0);
}
else
if (number_fonts == 1)
{
/*
Reply is a single font name-- exit.
*/
(void) CopyMagickString(reply,checklist[0],MaxTextExtent);
(void) CopyMagickString(glob_pattern,back_pattern,MaxTextExtent);
(void) XFreeFontNames(checklist);
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
else
{
(void) XFreeFontNames(listhead);
fontlist=(char **) RelinquishMagickMemory(fontlist);
fontlist=checklist;
fonts=number_fonts;
}
/*
Sort font list in ascending order.
*/
listhead=fontlist;
fontlist=(char **) AcquireQuantumMemory((size_t) fonts,
sizeof(*fontlist));
if (fontlist == (char **) NULL)
{
XNoticeWidget(display,windows,"MemoryAllocationFailed",
"UnableToViewFonts");
return;
}
for (i=0; i < fonts; i++)
fontlist[i]=listhead[i];
qsort((void *) fontlist,(size_t) fonts,sizeof(*fontlist),FontCompare);
slider_info.height=
scroll_info.height-((slider_info.min_y-scroll_info.y+1) << 1)+1;
if (fonts > (int) visible_fonts)
slider_info.height=(visible_fonts*slider_info.height)/fonts;
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.id=0;
slider_info.y=slider_info.min_y;
expose_info.y=slider_info.y;
selection_info.id=(~0);
list_info.id=(~0);
state|=RedrawListState;
/*
Redraw font name & reply.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
(void) CopyMagickString(text_info.text,glob_pattern,MaxTextExtent);
XDrawWidgetText(display,&windows->widget,&text_info);
XDrawMatteText(display,&windows->widget,&reply_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~UpdateListState);
}
if (state & JumpListState)
{
/*
Jump scroll to match user font.
*/
list_info.id=(~0);
for (i=0; i < fonts; i++)
if (LocaleCompare(fontlist[i],reply) >= 0)
{
list_info.id=LocaleCompare(fontlist[i],reply) == 0 ? i : ~0;
break;
}
if ((i < slider_info.id) || (i >= (int) (slider_info.id+visible_fonts)))
slider_info.id=i-(visible_fonts >> 1);
selection_info.id=(~0);
state|=RedrawListState;
state&=(~JumpListState);
}
if (state & RedrawListState)
{
/*
Determine slider id and position.
*/
if (slider_info.id >= (int) (fonts-visible_fonts))
slider_info.id=fonts-visible_fonts;
if ((slider_info.id < 0) || (fonts <= (int) visible_fonts))
slider_info.id=0;
slider_info.y=slider_info.min_y;
if (fonts > 0)
slider_info.y+=
slider_info.id*(slider_info.max_y-slider_info.min_y+1)/fonts;
if (slider_info.id != selection_info.id)
{
/*
Redraw scroll bar and file names.
*/
selection_info.id=slider_info.id;
selection_info.y=list_info.y+(height >> 3)+2;
for (i=0; i < (int) visible_fonts; i++)
{
selection_info.raised=(slider_info.id+i) != list_info.id ?
MagickTrue : MagickFalse;
selection_info.text=(char *) NULL;
if ((slider_info.id+i) < fonts)
selection_info.text=fontlist[slider_info.id+i];
XDrawWidgetText(display,&windows->widget,&selection_info);
selection_info.y+=(int) selection_info.height;
}
/*
Update slider.
*/
if (slider_info.y > expose_info.y)
{
expose_info.height=(unsigned int) slider_info.y-expose_info.y;
expose_info.y=slider_info.y-expose_info.height-
slider_info.bevel_width-1;
}
else
{
expose_info.height=(unsigned int) expose_info.y-slider_info.y;
expose_info.y=slider_info.y+slider_info.height+
slider_info.bevel_width+1;
}
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawMatte(display,&windows->widget,&expose_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
expose_info.y=slider_info.y;
}
state&=(~RedrawListState);
}
if (state & RedrawActionState)
{
XFontStruct
*save_info;
/*
Display the selected font in a drawing area.
*/
save_info=windows->widget.font_info;
font_info=XLoadQueryFont(display,reply_info.text);
if (font_info != (XFontStruct *) NULL)
{
windows->widget.font_info=font_info;
(void) XSetFont(display,windows->widget.widget_context,
font_info->fid);
}
XDrawBeveledButton(display,&windows->widget,&mode_info);
windows->widget.font_info=save_info;
if (font_info != (XFontStruct *) NULL)
{
(void) XSetFont(display,windows->widget.widget_context,
windows->widget.font_info->fid);
(void) XFreeFont(display,font_info);
}
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
XDrawMatteText(display,&windows->widget,&reply_info);
state&=(~RedrawActionState);
}
/*
Wait for next event.
*/
if (north_info.raised && south_info.raised)
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
else
{
/*
Brief delay before advancing scroll bar.
*/
XDelay(display,delay);
delay=SuspendTime;
(void) XCheckIfEvent(display,&event,XScreenEvent,(char *) windows);
if (north_info.raised == MagickFalse)
if (slider_info.id > 0)
{
/*
Move slider up.
*/
slider_info.id--;
state|=RedrawListState;
}
if (south_info.raised == MagickFalse)
if (slider_info.id < fonts)
{
/*
Move slider down.
*/
slider_info.id++;
state|=RedrawListState;
}
if (event.type != ButtonRelease)
continue;
}
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(slider_info,event.xbutton))
{
/*
Track slider.
*/
slider_info.active=MagickTrue;
break;
}
if (MatteIsActive(north_info,event.xbutton))
if (slider_info.id > 0)
{
/*
Move slider up.
*/
north_info.raised=MagickFalse;
slider_info.id--;
state|=RedrawListState;
break;
}
if (MatteIsActive(south_info,event.xbutton))
if (slider_info.id < fonts)
{
/*
Move slider down.
*/
south_info.raised=MagickFalse;
slider_info.id++;
state|=RedrawListState;
break;
}
if (MatteIsActive(scroll_info,event.xbutton))
{
/*
Move slider.
*/
if (event.xbutton.y < slider_info.y)
slider_info.id-=(visible_fonts-1);
else
slider_info.id+=(visible_fonts-1);
state|=RedrawListState;
break;
}
if (MatteIsActive(list_info,event.xbutton))
{
int
id;
/*
User pressed list matte.
*/
id=slider_info.id+(event.xbutton.y-(list_info.y+(height >> 1))+1)/
selection_info.height;
if (id >= (int) fonts)
break;
(void) CopyMagickString(reply_info.text,fontlist[id],MaxTextExtent);
reply_info.highlight=MagickFalse;
reply_info.marker=reply_info.text;
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=RedrawActionState;
if (id == list_info.id)
{
(void) CopyMagickString(glob_pattern,reply_info.text,
MaxTextExtent);
state|=UpdateListState;
}
selection_info.id=(~0);
list_info.id=id;
state|=RedrawListState;
break;
}
if (MatteIsActive(back_info,event.xbutton))
{
/*
User pressed Back button.
*/
back_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&back_info);
break;
}
if (MatteIsActive(reset_info,event.xbutton))
{
/*
User pressed Reset button.
*/
reset_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&reset_info);
break;
}
if (MatteIsActive(action_info,event.xbutton))
{
/*
User pressed action button.
*/
action_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed Cancel button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
if (event.xbutton.button != Button2)
{
static Time
click_time;
/*
Move text cursor to position of button press.
*/
x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
for (i=1; i <= Extent(reply_info.marker); i++)
if (XTextWidth(font_info,reply_info.marker,i) > x)
break;
reply_info.cursor=reply_info.marker+i-1;
if (event.xbutton.time > (click_time+DoubleClick))
reply_info.highlight=MagickFalse;
else
{
/*
Become the XA_PRIMARY selection owner.
*/
(void) CopyMagickString(primary_selection,reply_info.text,
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
event.xbutton.time);
reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
windows->widget.id ? MagickTrue : MagickFalse;
}
XDrawMatteText(display,&windows->widget,&reply_info);
click_time=event.xbutton.time;
break;
}
/*
Request primary selection.
*/
(void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
windows->widget.id,event.xbutton.time);
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (north_info.raised == MagickFalse)
{
/*
User released up button.
*/
delay=SuspendTime << 2;
north_info.raised=MagickTrue;
XDrawTriangleNorth(display,&windows->widget,&north_info);
}
if (south_info.raised == MagickFalse)
{
/*
User released down button.
*/
delay=SuspendTime << 2;
south_info.raised=MagickTrue;
XDrawTriangleSouth(display,&windows->widget,&south_info);
}
if (slider_info.active)
{
/*
Stop tracking slider.
*/
slider_info.active=MagickFalse;
break;
}
if (back_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(back_info,event.xbutton))
{
(void) CopyMagickString(glob_pattern,back_pattern,
MaxTextExtent);
state|=UpdateListState;
}
back_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&back_info);
}
if (reset_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(reset_info,event.xbutton))
{
(void) CopyMagickString(back_pattern,glob_pattern,MaxTextExtent);
(void) CopyMagickString(glob_pattern,reset_pattern,MaxTextExtent);
state|=UpdateListState;
}
reset_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&reset_info);
}
if (action_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
{
if (MatteIsActive(action_info,event.xbutton))
{
if (*reply_info.text == '\0')
(void) XBell(display,0);
else
state|=ExitState;
}
}
action_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&action_info);
}
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(cancel_info,event.xbutton))
{
*reply_info.text='\0';
state|=ExitState;
}
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
*reply_info.text='\0';
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static int
length;
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
length=XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
*(command+length)='\0';
if (AreaIsActive(scroll_info,event.xkey))
{
/*
Move slider.
*/
switch ((int) key_symbol)
{
case XK_Home:
case XK_KP_Home:
{
slider_info.id=0;
break;
}
case XK_Up:
case XK_KP_Up:
{
slider_info.id--;
break;
}
case XK_Down:
case XK_KP_Down:
{
slider_info.id++;
break;
}
case XK_Prior:
case XK_KP_Prior:
{
slider_info.id-=visible_fonts;
break;
}
case XK_Next:
case XK_KP_Next:
{
slider_info.id+=visible_fonts;
break;
}
case XK_End:
case XK_KP_End:
{
slider_info.id=fonts;
break;
}
}
state|=RedrawListState;
break;
}
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
/*
Read new font or glob patterm.
*/
if (*reply_info.text == '\0')
break;
(void) CopyMagickString(back_pattern,glob_pattern,MaxTextExtent);
(void) CopyMagickString(glob_pattern,reply_info.text,MaxTextExtent);
state|=UpdateListState;
break;
}
if (key_symbol == XK_Control_L)
{
state|=ControlState;
break;
}
if (state & ControlState)
switch ((int) key_symbol)
{
case XK_u:
case XK_U:
{
/*
Erase the entire line of text.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
reply_info.marker=reply_info.text;
reply_info.highlight=MagickFalse;
break;
}
default:
break;
}
XEditText(display,&reply_info,key_symbol,command,state);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=JumpListState;
break;
}
case KeyRelease:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key release.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if (key_symbol == XK_Control_L)
state&=(~ControlState);
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MapNotify:
{
mask&=(~CWX);
mask&=(~CWY);
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (slider_info.active)
{
/*
Move slider matte.
*/
slider_info.y=event.xmotion.y-
((slider_info.height+slider_info.bevel_width) >> 1)+1;
if (slider_info.y < slider_info.min_y)
slider_info.y=slider_info.min_y;
if (slider_info.y > slider_info.max_y)
slider_info.y=slider_info.max_y;
slider_info.id=0;
if (slider_info.y != slider_info.min_y)
slider_info.id=(fonts*(slider_info.y-slider_info.min_y+1))/
(slider_info.max_y-slider_info.min_y+1);
state|=RedrawListState;
break;
}
if (state & InactiveWidgetState)
break;
if (back_info.raised == MatteIsActive(back_info,event.xmotion))
{
/*
Back button status changed.
*/
back_info.raised=!back_info.raised;
XDrawBeveledButton(display,&windows->widget,&back_info);
break;
}
if (reset_info.raised == MatteIsActive(reset_info,event.xmotion))
{
/*
Reset button status changed.
*/
reset_info.raised=!reset_info.raised;
XDrawBeveledButton(display,&windows->widget,&reset_info);
break;
}
if (action_info.raised == MatteIsActive(action_info,event.xmotion))
{
/*
Action button status changed.
*/
action_info.raised=action_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&action_info);
break;
}
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
break;
}
case SelectionClear:
{
reply_info.highlight=MagickFalse;
XDrawMatteText(display,&windows->widget,&reply_info);
break;
}
case SelectionNotify:
{
Atom
type;
int
format;
unsigned char
*data;
unsigned long
after,
length;
/*
Obtain response from primary selection.
*/
if (event.xselection.property == (Atom) None)
break;
status=XGetWindowProperty(display,event.xselection.requestor,
event.xselection.property,0L,2047L,MagickTrue,XA_STRING,&type,
&format,&length,&after,&data);
if ((status != Success) || (type != XA_STRING) || (format == 32) ||
(length == 0))
break;
if ((Extent(reply_info.text)+length) >= MaxTextExtent)
(void) XBell(display,0);
else
{
/*
Insert primary selection in reply text.
*/
*(data+length)='\0';
XEditText(display,&reply_info,(KeySym) XK_Insert,(char *) data,
state);
XDrawMatteText(display,&windows->widget,&reply_info);
state|=JumpListState;
state|=RedrawActionState;
}
(void) XFree((void *) data);
break;
}
case SelectionRequest:
{
XSelectionEvent
notify;
XSelectionRequestEvent
*request;
/*
Set XA_PRIMARY selection.
*/
request=(&(event.xselectionrequest));
(void) XChangeProperty(request->display,request->requestor,
request->property,request->target,8,PropModeReplace,
(unsigned char *) primary_selection,Extent(primary_selection));
notify.type=SelectionNotify;
notify.display=request->display;
notify.requestor=request->requestor;
notify.selection=request->selection;
notify.target=request->target;
notify.time=request->time;
if (request->property == None)
notify.property=request->target;
else
notify.property=request->property;
(void) XSendEvent(request->display,request->requestor,False,0,
(XEvent *) &notify);
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
/*
Free font list.
*/
(void) XFreeFontNames(listhead);
fontlist=(char **) RelinquishMagickMemory(fontlist);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X I n f o W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XInfoWidget() displays text in the Info widget. The purpose is to inform
% the user that what activity is currently being performed (e.g. reading
% an image, rotating an image, etc.).
%
% The format of the XInfoWidget method is:
%
% void XInfoWidget(Display *display,XWindows *windows,const char *activity)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o activity: This character string reflects the current activity and is
% displayed in the Info widget.
%
*/
MagickExport void XInfoWidget(Display *display,XWindows *windows,
const char *activity)
{
unsigned int
height,
margin,
width;
XFontStruct
*font_info;
XWindowChanges
window_changes;
/*
Map Info widget.
*/
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(activity != (char *) NULL);
font_info=windows->info.font_info;
width=WidgetTextWidth(font_info,(char *) activity)+((3*QuantumMargin) >> 1)+4;
height=(unsigned int) (((6*(font_info->ascent+font_info->descent)) >> 2)+4);
if ((windows->info.width != width) || (windows->info.height != height))
{
/*
Size Info widget to accommodate the activity text.
*/
windows->info.width=width;
windows->info.height=height;
window_changes.width=(int) width;
window_changes.height=(int) height;
(void) XReconfigureWMWindow(display,windows->info.id,windows->info.screen,
(unsigned int) (CWWidth | CWHeight),&window_changes);
}
if (windows->info.mapped == MagickFalse)
{
(void) XMapRaised(display,windows->info.id);
windows->info.mapped=MagickTrue;
}
/*
Initialize Info matte information.
*/
height=(unsigned int) (font_info->ascent+font_info->descent);
XGetWidgetInfo(activity,&monitor_info);
monitor_info.bevel_width--;
margin=monitor_info.bevel_width+((windows->info.height-height) >> 1)-2;
monitor_info.center=MagickFalse;
monitor_info.x=(int) margin;
monitor_info.y=(int) margin;
monitor_info.width=windows->info.width-(margin << 1);
monitor_info.height=windows->info.height-(margin << 1)+1;
/*
Draw Info widget.
*/
monitor_info.raised=MagickFalse;
XDrawBeveledMatte(display,&windows->info,&monitor_info);
monitor_info.raised=MagickTrue;
XDrawWidgetText(display,&windows->info,&monitor_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X L i s t B r o w s e r W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XListBrowserWidget() displays a List Browser widget with a query to the
% user. The user keys a reply or select a reply from the list. Finally, the
% user presses the Action or Cancel button to exit. The typed text is
% returned as the reply function parameter.
%
% The format of the XListBrowserWidget method is:
%
% void XListBrowserWidget(Display *display,XWindows *windows,
% XWindowInfo *window_info,const char **list,const char *action,
% const char *query,char *reply)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o list: Specifies a pointer to an array of strings. The user can
% select from these strings as a possible reply value.
%
% o action: Specifies a pointer to the action of this widget.
%
% o query: Specifies a pointer to the query to present to the user.
%
% o reply: the response from the user is returned in this parameter.
%
*/
MagickExport void XListBrowserWidget(Display *display,XWindows *windows,
XWindowInfo *window_info,const char **list,const char *action,
const char *query,char *reply)
{
#define CancelButtonText "Cancel"
char
primary_selection[MaxTextExtent];
int
x;
register int
i;
static MagickStatusType
mask = (MagickStatusType) (CWWidth | CWHeight | CWX | CWY);
Status
status;
unsigned int
entries,
height,
text_width,
visible_entries,
width;
size_t
delay,
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
action_info,
cancel_info,
expose_info,
list_info,
north_info,
reply_info,
scroll_info,
selection_info,
slider_info,
south_info,
text_info;
XWindowChanges
window_changes;
/*
Count the number of entries in the list.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(window_info != (XWindowInfo *) NULL);
assert(list != (const char **) NULL);
assert(action != (char *) NULL);
assert(query != (char *) NULL);
assert(reply != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
XSetCursorState(display,windows,MagickTrue);
XCheckRefreshWindows(display,windows);
if (list == (const char **) NULL)
{
XNoticeWidget(display,windows,"No text to browse:",(char *) NULL);
return;
}
for (entries=0; ; entries++)
if (list[entries] == (char *) NULL)
break;
/*
Determine Font Browser widget attributes.
*/
font_info=window_info->font_info;
text_width=WidgetTextWidth(font_info,(char *) query);
for (i=0; i < (int) entries; i++)
if (WidgetTextWidth(font_info,(char *) list[i]) > text_width)
text_width=WidgetTextWidth(font_info,(char *) list[i]);
width=WidgetTextWidth(font_info,(char *) action);
if (WidgetTextWidth(font_info,CancelButtonText) > width)
width=WidgetTextWidth(font_info,CancelButtonText);
width+=QuantumMargin;
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position List Browser widget.
*/
window_info->width=(unsigned int) MagickMin((int) text_width,(int)
MaxTextWidth)+((9*QuantumMargin) >> 1);
window_info->min_width=(unsigned int) (MinTextWidth+4*QuantumMargin);
if (window_info->width < window_info->min_width)
window_info->width=window_info->min_width;
window_info->height=(unsigned int)
(((81*height) >> 2)+((13*QuantumMargin) >> 1)+4);
window_info->min_height=(unsigned int)
(((23*height) >> 1)+((13*QuantumMargin) >> 1)+4);
if (window_info->height < window_info->min_height)
window_info->height=window_info->min_height;
XConstrainWindowPosition(display,window_info);
/*
Map List Browser widget.
*/
(void) CopyMagickString(window_info->name,"Browse",MaxTextExtent);
status=XStringListToTextProperty(&window_info->name,1,&window_name);
if (status != False)
{
XSetWMName(display,window_info->id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) window_info->width;
window_changes.height=(int) window_info->height;
window_changes.x=window_info->x;
window_changes.y=window_info->y;
(void) XReconfigureWMWindow(display,window_info->id,window_info->screen,mask,
&window_changes);
(void) XMapRaised(display,window_info->id);
window_info->mapped=MagickFalse;
/*
Respond to X events.
*/
XGetWidgetInfo((char *) NULL,&slider_info);
XGetWidgetInfo((char *) NULL,&north_info);
XGetWidgetInfo((char *) NULL,&south_info);
XGetWidgetInfo((char *) NULL,&expose_info);
visible_entries=0;
delay=SuspendTime << 2;
state=UpdateConfigurationState;
do
{
if (state & UpdateConfigurationState)
{
int
id;
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=width;
cancel_info.height=(unsigned int) ((3*height) >> 1);
cancel_info.x=(int)
(window_info->width-cancel_info.width-QuantumMargin-2);
cancel_info.y=(int)
(window_info->height-cancel_info.height-QuantumMargin);
XGetWidgetInfo(action,&action_info);
action_info.width=width;
action_info.height=(unsigned int) ((3*height) >> 1);
action_info.x=cancel_info.x-(cancel_info.width+(QuantumMargin >> 1)+
(action_info.bevel_width << 1));
action_info.y=cancel_info.y;
/*
Initialize reply information.
*/
XGetWidgetInfo(reply,&reply_info);
reply_info.raised=MagickFalse;
reply_info.bevel_width--;
reply_info.width=window_info->width-((4*QuantumMargin) >> 1);
reply_info.height=height << 1;
reply_info.x=QuantumMargin;
reply_info.y=action_info.y-reply_info.height-QuantumMargin;
/*
Initialize scroll information.
*/
XGetWidgetInfo((char *) NULL,&scroll_info);
scroll_info.bevel_width--;
scroll_info.width=height;
scroll_info.height=(unsigned int)
(reply_info.y-((6*QuantumMargin) >> 1)-height);
scroll_info.x=reply_info.x+(reply_info.width-scroll_info.width);
scroll_info.y=((5*QuantumMargin) >> 1)+height-reply_info.bevel_width;
scroll_info.raised=MagickFalse;
scroll_info.trough=MagickTrue;
north_info=scroll_info;
north_info.raised=MagickTrue;
north_info.width-=(north_info.bevel_width << 1);
north_info.height=north_info.width-1;
north_info.x+=north_info.bevel_width;
north_info.y+=north_info.bevel_width;
south_info=north_info;
south_info.y=scroll_info.y+scroll_info.height-scroll_info.bevel_width-
south_info.height;
id=slider_info.id;
slider_info=north_info;
slider_info.id=id;
slider_info.width-=2;
slider_info.min_y=north_info.y+north_info.height+north_info.bevel_width+
slider_info.bevel_width+2;
slider_info.height=scroll_info.height-((slider_info.min_y-
scroll_info.y+1) << 1)+4;
visible_entries=scroll_info.height/(height+(height >> 3));
if (entries > visible_entries)
slider_info.height=(visible_entries*slider_info.height)/entries;
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.x=scroll_info.x+slider_info.bevel_width+1;
slider_info.y=slider_info.min_y;
expose_info=scroll_info;
expose_info.y=slider_info.y;
/*
Initialize list information.
*/
XGetWidgetInfo((char *) NULL,&list_info);
list_info.raised=MagickFalse;
list_info.bevel_width--;
list_info.width=(unsigned int)
(scroll_info.x-reply_info.x-(QuantumMargin >> 1));
list_info.height=scroll_info.height;
list_info.x=reply_info.x;
list_info.y=scroll_info.y;
if (window_info->mapped == MagickFalse)
for (i=0; i < (int) entries; i++)
if (LocaleCompare(list[i],reply) == 0)
{
list_info.id=i;
slider_info.id=i-(visible_entries >> 1);
if (slider_info.id < 0)
slider_info.id=0;
}
/*
Initialize text information.
*/
XGetWidgetInfo(query,&text_info);
text_info.width=reply_info.width;
text_info.height=height;
text_info.x=list_info.x-(QuantumMargin >> 1);
text_info.y=QuantumMargin;
/*
Initialize selection information.
*/
XGetWidgetInfo((char *) NULL,&selection_info);
selection_info.center=MagickFalse;
selection_info.width=list_info.width;
selection_info.height=(unsigned int) ((9*height) >> 3);
selection_info.x=list_info.x;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw List Browser window.
*/
XDrawWidgetText(display,window_info,&text_info);
XDrawBeveledMatte(display,window_info,&list_info);
XDrawBeveledMatte(display,window_info,&scroll_info);
XDrawTriangleNorth(display,window_info,&north_info);
XDrawBeveledButton(display,window_info,&slider_info);
XDrawTriangleSouth(display,window_info,&south_info);
XDrawBeveledMatte(display,window_info,&reply_info);
XDrawMatteText(display,window_info,&reply_info);
XDrawBeveledButton(display,window_info,&action_info);
XDrawBeveledButton(display,window_info,&cancel_info);
XHighlightWidget(display,window_info,BorderOffset,BorderOffset);
selection_info.id=(~0);
state|=RedrawActionState;
state|=RedrawListState;
state&=(~RedrawWidgetState);
}
if (state & RedrawListState)
{
/*
Determine slider id and position.
*/
if (slider_info.id >= (int) (entries-visible_entries))
slider_info.id=(int) (entries-visible_entries);
if ((slider_info.id < 0) || (entries <= visible_entries))
slider_info.id=0;
slider_info.y=slider_info.min_y;
if (entries > 0)
slider_info.y+=
slider_info.id*(slider_info.max_y-slider_info.min_y+1)/entries;
if (slider_info.id != selection_info.id)
{
/*
Redraw scroll bar and file names.
*/
selection_info.id=slider_info.id;
selection_info.y=list_info.y+(height >> 3)+2;
for (i=0; i < (int) visible_entries; i++)
{
selection_info.raised=(slider_info.id+i) != list_info.id ?
MagickTrue : MagickFalse;
selection_info.text=(char *) NULL;
if ((slider_info.id+i) < (int) entries)
selection_info.text=(char *) list[slider_info.id+i];
XDrawWidgetText(display,window_info,&selection_info);
selection_info.y+=(int) selection_info.height;
}
/*
Update slider.
*/
if (slider_info.y > expose_info.y)
{
expose_info.height=(unsigned int) slider_info.y-expose_info.y;
expose_info.y=slider_info.y-expose_info.height-
slider_info.bevel_width-1;
}
else
{
expose_info.height=(unsigned int) expose_info.y-slider_info.y;
expose_info.y=slider_info.y+slider_info.height+
slider_info.bevel_width+1;
}
XDrawTriangleNorth(display,window_info,&north_info);
XDrawMatte(display,window_info,&expose_info);
XDrawBeveledButton(display,window_info,&slider_info);
XDrawTriangleSouth(display,window_info,&south_info);
expose_info.y=slider_info.y;
}
state&=(~RedrawListState);
}
/*
Wait for next event.
*/
if (north_info.raised && south_info.raised)
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
else
{
/*
Brief delay before advancing scroll bar.
*/
XDelay(display,delay);
delay=SuspendTime;
(void) XCheckIfEvent(display,&event,XScreenEvent,(char *) windows);
if (north_info.raised == MagickFalse)
if (slider_info.id > 0)
{
/*
Move slider up.
*/
slider_info.id--;
state|=RedrawListState;
}
if (south_info.raised == MagickFalse)
if (slider_info.id < (int) entries)
{
/*
Move slider down.
*/
slider_info.id++;
state|=RedrawListState;
}
if (event.type != ButtonRelease)
continue;
}
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(slider_info,event.xbutton))
{
/*
Track slider.
*/
slider_info.active=MagickTrue;
break;
}
if (MatteIsActive(north_info,event.xbutton))
if (slider_info.id > 0)
{
/*
Move slider up.
*/
north_info.raised=MagickFalse;
slider_info.id--;
state|=RedrawListState;
break;
}
if (MatteIsActive(south_info,event.xbutton))
if (slider_info.id < (int) entries)
{
/*
Move slider down.
*/
south_info.raised=MagickFalse;
slider_info.id++;
state|=RedrawListState;
break;
}
if (MatteIsActive(scroll_info,event.xbutton))
{
/*
Move slider.
*/
if (event.xbutton.y < slider_info.y)
slider_info.id-=(visible_entries-1);
else
slider_info.id+=(visible_entries-1);
state|=RedrawListState;
break;
}
if (MatteIsActive(list_info,event.xbutton))
{
int
id;
/*
User pressed list matte.
*/
id=slider_info.id+(event.xbutton.y-(list_info.y+(height >> 1))+1)/
selection_info.height;
if (id >= (int) entries)
break;
(void) CopyMagickString(reply_info.text,list[id],MaxTextExtent);
reply_info.highlight=MagickFalse;
reply_info.marker=reply_info.text;
reply_info.cursor=reply_info.text+Extent(reply_info.text);
XDrawMatteText(display,window_info,&reply_info);
selection_info.id=(~0);
if (id == list_info.id)
{
action_info.raised=MagickFalse;
XDrawBeveledButton(display,window_info,&action_info);
state|=ExitState;
}
list_info.id=id;
state|=RedrawListState;
break;
}
if (MatteIsActive(action_info,event.xbutton))
{
/*
User pressed action button.
*/
action_info.raised=MagickFalse;
XDrawBeveledButton(display,window_info,&action_info);
break;
}
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed Cancel button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,window_info,&cancel_info);
break;
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
if (event.xbutton.button != Button2)
{
static Time
click_time;
/*
Move text cursor to position of button press.
*/
x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
for (i=1; i <= Extent(reply_info.marker); i++)
if (XTextWidth(font_info,reply_info.marker,i) > x)
break;
reply_info.cursor=reply_info.marker+i-1;
if (event.xbutton.time > (click_time+DoubleClick))
reply_info.highlight=MagickFalse;
else
{
/*
Become the XA_PRIMARY selection owner.
*/
(void) CopyMagickString(primary_selection,reply_info.text,
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,window_info->id,
event.xbutton.time);
reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
window_info->id ? MagickTrue : MagickFalse;
}
XDrawMatteText(display,window_info,&reply_info);
click_time=event.xbutton.time;
break;
}
/*
Request primary selection.
*/
(void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
window_info->id,event.xbutton.time);
break;
}
case ButtonRelease:
{
if (window_info->mapped == MagickFalse)
break;
if (north_info.raised == MagickFalse)
{
/*
User released up button.
*/
delay=SuspendTime << 2;
north_info.raised=MagickTrue;
XDrawTriangleNorth(display,window_info,&north_info);
}
if (south_info.raised == MagickFalse)
{
/*
User released down button.
*/
delay=SuspendTime << 2;
south_info.raised=MagickTrue;
XDrawTriangleSouth(display,window_info,&south_info);
}
if (slider_info.active)
{
/*
Stop tracking slider.
*/
slider_info.active=MagickFalse;
break;
}
if (action_info.raised == MagickFalse)
{
if (event.xbutton.window == window_info->id)
{
if (MatteIsActive(action_info,event.xbutton))
{
if (*reply_info.text == '\0')
(void) XBell(display,0);
else
state|=ExitState;
}
}
action_info.raised=MagickTrue;
XDrawBeveledButton(display,window_info,&action_info);
}
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == window_info->id)
if (MatteIsActive(cancel_info,event.xbutton))
{
*reply_info.text='\0';
state|=ExitState;
}
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,window_info,&cancel_info);
}
if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
break;
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == window_info->id)
{
*reply_info.text='\0';
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != window_info->id)
break;
if ((event.xconfigure.width == (int) window_info->width) &&
(event.xconfigure.height == (int) window_info->height))
break;
window_info->width=(unsigned int)
MagickMax(event.xconfigure.width,(int) window_info->min_width);
window_info->height=(unsigned int)
MagickMax(event.xconfigure.height,(int) window_info->min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != window_info->id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != window_info->id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static int
length;
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != window_info->id)
break;
length=XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
*(command+length)='\0';
if (AreaIsActive(scroll_info,event.xkey))
{
/*
Move slider.
*/
switch ((int) key_symbol)
{
case XK_Home:
case XK_KP_Home:
{
slider_info.id=0;
break;
}
case XK_Up:
case XK_KP_Up:
{
slider_info.id--;
break;
}
case XK_Down:
case XK_KP_Down:
{
slider_info.id++;
break;
}
case XK_Prior:
case XK_KP_Prior:
{
slider_info.id-=visible_entries;
break;
}
case XK_Next:
case XK_KP_Next:
{
slider_info.id+=visible_entries;
break;
}
case XK_End:
case XK_KP_End:
{
slider_info.id=(int) entries;
break;
}
}
state|=RedrawListState;
break;
}
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
/*
Read new entry.
*/
if (*reply_info.text == '\0')
break;
action_info.raised=MagickFalse;
XDrawBeveledButton(display,window_info,&action_info);
state|=ExitState;
break;
}
if (key_symbol == XK_Control_L)
{
state|=ControlState;
break;
}
if (state & ControlState)
switch ((int) key_symbol)
{
case XK_u:
case XK_U:
{
/*
Erase the entire line of text.
*/
*reply_info.text='\0';
reply_info.cursor=reply_info.text;
reply_info.marker=reply_info.text;
reply_info.highlight=MagickFalse;
break;
}
default:
break;
}
XEditText(display,&reply_info,key_symbol,command,state);
XDrawMatteText(display,window_info,&reply_info);
break;
}
case KeyRelease:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key release.
*/
if (event.xkey.window != window_info->id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if (key_symbol == XK_Control_L)
state&=(~ControlState);
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != window_info->id)
break;
state|=InactiveWidgetState;
break;
}
case MapNotify:
{
mask&=(~CWX);
mask&=(~CWY);
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (slider_info.active)
{
/*
Move slider matte.
*/
slider_info.y=event.xmotion.y-
((slider_info.height+slider_info.bevel_width) >> 1)+1;
if (slider_info.y < slider_info.min_y)
slider_info.y=slider_info.min_y;
if (slider_info.y > slider_info.max_y)
slider_info.y=slider_info.max_y;
slider_info.id=0;
if (slider_info.y != slider_info.min_y)
slider_info.id=(int) ((entries*(slider_info.y-
slider_info.min_y+1))/(slider_info.max_y-slider_info.min_y+1));
state|=RedrawListState;
break;
}
if (state & InactiveWidgetState)
break;
if (action_info.raised == MatteIsActive(action_info,event.xmotion))
{
/*
Action button status changed.
*/
action_info.raised=action_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,window_info,&action_info);
break;
}
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=cancel_info.raised == MagickFalse ?
MagickTrue : MagickFalse;
XDrawBeveledButton(display,window_info,&cancel_info);
break;
}
break;
}
case SelectionClear:
{
reply_info.highlight=MagickFalse;
XDrawMatteText(display,window_info,&reply_info);
break;
}
case SelectionNotify:
{
Atom
type;
int
format;
unsigned char
*data;
unsigned long
after,
length;
/*
Obtain response from primary selection.
*/
if (event.xselection.property == (Atom) None)
break;
status=XGetWindowProperty(display,
event.xselection.requestor,event.xselection.property,0L,2047L,
MagickTrue,XA_STRING,&type,&format,&length,&after,&data);
if ((status != Success) || (type != XA_STRING) || (format == 32) ||
(length == 0))
break;
if ((Extent(reply_info.text)+length) >= MaxTextExtent)
(void) XBell(display,0);
else
{
/*
Insert primary selection in reply text.
*/
*(data+length)='\0';
XEditText(display,&reply_info,(KeySym) XK_Insert,(char *) data,
state);
XDrawMatteText(display,window_info,&reply_info);
state|=RedrawActionState;
}
(void) XFree((void *) data);
break;
}
case SelectionRequest:
{
XSelectionEvent
notify;
XSelectionRequestEvent
*request;
if (reply_info.highlight == MagickFalse)
break;
/*
Set primary selection.
*/
request=(&(event.xselectionrequest));
(void) XChangeProperty(request->display,request->requestor,
request->property,request->target,8,PropModeReplace,
(unsigned char *) primary_selection,Extent(primary_selection));
notify.type=SelectionNotify;
notify.send_event=MagickTrue;
notify.display=request->display;
notify.requestor=request->requestor;
notify.selection=request->selection;
notify.target=request->target;
notify.time=request->time;
if (request->property == None)
notify.property=request->target;
else
notify.property=request->property;
(void) XSendEvent(request->display,request->requestor,False,NoEventMask,
(XEvent *) &notify);
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,window_info->id,window_info->screen);
XCheckRefreshWindows(display,windows);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X M e n u W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XMenuWidget() maps a menu and returns the command pointed to by the user
% when the button is released.
%
% The format of the XMenuWidget method is:
%
% int XMenuWidget(Display *display,XWindows *windows,const char *title,
% const char **selections,char *item)
%
% A description of each parameter follows:
%
% o selection_number: Specifies the number of the selection that the
% user choose.
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o title: Specifies a character string that describes the menu selections.
%
% o selections: Specifies a pointer to one or more strings that comprise
% the choices in the menu.
%
% o item: Specifies a character array. The item selected from the menu
% is returned here.
%
*/
MagickExport int XMenuWidget(Display *display,XWindows *windows,
const char *title,const char **selections,char *item)
{
Cursor
cursor;
int
id,
x,
y;
unsigned int
height,
number_selections,
title_height,
top_offset,
width;
size_t
state;
XEvent
event;
XFontStruct
*font_info;
XSetWindowAttributes
window_attributes;
XWidgetInfo
highlight_info,
menu_info,
selection_info;
XWindowChanges
window_changes;
/*
Determine Menu widget attributes.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(title != (char *) NULL);
assert(selections != (const char **) NULL);
assert(item != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",title);
font_info=windows->widget.font_info;
windows->widget.width=submenu_info.active == 0 ?
WidgetTextWidth(font_info,(char *) title) : 0;
for (id=0; selections[id] != (char *) NULL; id++)
{
width=WidgetTextWidth(font_info,(char *) selections[id]);
if (width > windows->widget.width)
windows->widget.width=width;
}
number_selections=(unsigned int) id;
XGetWidgetInfo((char *) NULL,&menu_info);
title_height=(unsigned int) (submenu_info.active == 0 ?
(3*(font_info->descent+font_info->ascent) >> 1)+5 : 2);
width=WidgetTextWidth(font_info,(char *) title);
height=(unsigned int) ((3*(font_info->ascent+font_info->descent)) >> 1);
/*
Position Menu widget.
*/
windows->widget.width+=QuantumMargin+(menu_info.bevel_width << 1);
top_offset=title_height+menu_info.bevel_width-1;
windows->widget.height=top_offset+number_selections*height+4;
windows->widget.min_width=windows->widget.width;
windows->widget.min_height=windows->widget.height;
XQueryPosition(display,windows->widget.root,&x,&y);
windows->widget.x=x-(QuantumMargin >> 1);
if (submenu_info.active != 0)
{
windows->widget.x=
windows->command.x+windows->command.width-QuantumMargin;
toggle_info.raised=MagickTrue;
XDrawTriangleEast(display,&windows->command,&toggle_info);
}
windows->widget.y=submenu_info.active == 0 ? y-(int)
((3*title_height) >> 2) : y;
if (submenu_info.active != 0)
windows->widget.y=windows->command.y+submenu_info.y;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Menu widget.
*/
window_attributes.override_redirect=MagickTrue;
(void) XChangeWindowAttributes(display,windows->widget.id,
(size_t) CWOverrideRedirect,&window_attributes);
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
(unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
selection_info.height=height;
cursor=XCreateFontCursor(display,XC_right_ptr);
(void) XCheckDefineCursor(display,windows->image.id,cursor);
(void) XCheckDefineCursor(display,windows->command.id,cursor);
(void) XCheckDefineCursor(display,windows->widget.id,cursor);
state=UpdateConfigurationState;
do
{
if (state & UpdateConfigurationState)
{
/*
Initialize selection information.
*/
XGetWidgetInfo((char *) NULL,&menu_info);
menu_info.bevel_width--;
menu_info.width=windows->widget.width-((menu_info.bevel_width) << 1);
menu_info.height=windows->widget.height-((menu_info.bevel_width) << 1);
menu_info.x=(int) menu_info.bevel_width;
menu_info.y=(int) menu_info.bevel_width;
XGetWidgetInfo((char *) NULL,&selection_info);
selection_info.center=MagickFalse;
selection_info.width=menu_info.width;
selection_info.height=height;
selection_info.x=menu_info.x;
highlight_info=selection_info;
highlight_info.bevel_width--;
highlight_info.width-=(highlight_info.bevel_width << 1);
highlight_info.height-=(highlight_info.bevel_width << 1);
highlight_info.x+=highlight_info.bevel_width;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Menu widget.
*/
if (submenu_info.active == 0)
{
y=(int) title_height;
XSetBevelColor(display,&windows->widget,MagickFalse);
(void) XDrawLine(display,windows->widget.id,
windows->widget.widget_context,selection_info.x,y-1,
(int) selection_info.width,y-1);
XSetBevelColor(display,&windows->widget,MagickTrue);
(void) XDrawLine(display,windows->widget.id,
windows->widget.widget_context,selection_info.x,y,
(int) selection_info.width,y);
(void) XSetFillStyle(display,windows->widget.widget_context,
FillSolid);
}
/*
Draw menu selections.
*/
selection_info.center=MagickTrue;
selection_info.y=(int) menu_info.bevel_width;
selection_info.text=(char *) title;
if (submenu_info.active == 0)
XDrawWidgetText(display,&windows->widget,&selection_info);
selection_info.center=MagickFalse;
selection_info.y=(int) top_offset;
for (id=0; id < (int) number_selections; id++)
{
selection_info.text=(char *) selections[id];
XDrawWidgetText(display,&windows->widget,&selection_info);
highlight_info.y=selection_info.y+highlight_info.bevel_width;
if (id == selection_info.id)
XDrawBevel(display,&windows->widget,&highlight_info);
selection_info.y+=(int) selection_info.height;
}
XDrawBevel(display,&windows->widget,&menu_info);
state&=(~RedrawWidgetState);
}
if (number_selections > 2)
{
/*
Redraw Menu line.
*/
y=(int) (top_offset+selection_info.height*(number_selections-1));
XSetBevelColor(display,&windows->widget,MagickFalse);
(void) XDrawLine(display,windows->widget.id,
windows->widget.widget_context,selection_info.x,y-1,
(int) selection_info.width,y-1);
XSetBevelColor(display,&windows->widget,MagickTrue);
(void) XDrawLine(display,windows->widget.id,
windows->widget.widget_context,selection_info.x,y,
(int) selection_info.width,y);
(void) XSetFillStyle(display,windows->widget.widget_context,FillSolid);
}
/*
Wait for next event.
*/
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
switch (event.type)
{
case ButtonPress:
{
if (event.xbutton.window != windows->widget.id)
{
/*
exit menu.
*/
if (event.xbutton.window == windows->command.id)
(void) XPutBackEvent(display,&event);
selection_info.id=(~0);
*item='\0';
state|=ExitState;
break;
}
state&=(~InactiveWidgetState);
id=(event.xbutton.y-top_offset)/(int) selection_info.height;
selection_info.id=id;
if ((id < 0) || (id >= (int) number_selections))
break;
/*
Highlight this selection.
*/
selection_info.y=(int) (top_offset+id*selection_info.height);
selection_info.text=(char *) selections[id];
XDrawWidgetText(display,&windows->widget,&selection_info);
highlight_info.y=selection_info.y+highlight_info.bevel_width;
XDrawBevel(display,&windows->widget,&highlight_info);
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (event.xbutton.window == windows->command.id)
if ((state & InactiveWidgetState) == 0)
break;
/*
exit menu.
*/
XSetCursorState(display,windows,MagickFalse);
*item='\0';
state|=ExitState;
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
if (event.xcrossing.state == 0)
break;
state&=(~InactiveWidgetState);
id=((event.xcrossing.y-top_offset)/(int) selection_info.height);
if ((selection_info.id >= 0) &&
(selection_info.id < (int) number_selections))
{
/*
Unhighlight last selection.
*/
if (id == selection_info.id)
break;
selection_info.y=(int)
(top_offset+selection_info.id*selection_info.height);
selection_info.text=(char *) selections[selection_info.id];
XDrawWidgetText(display,&windows->widget,&selection_info);
}
if ((id < 0) || (id >= (int) number_selections))
break;
/*
Highlight this selection.
*/
selection_info.id=id;
selection_info.y=(int)
(top_offset+selection_info.id*selection_info.height);
selection_info.text=(char *) selections[selection_info.id];
XDrawWidgetText(display,&windows->widget,&selection_info);
highlight_info.y=selection_info.y+highlight_info.bevel_width;
XDrawBevel(display,&windows->widget,&highlight_info);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
id=selection_info.id;
if ((id < 0) || (id >= (int) number_selections))
break;
/*
Unhighlight last selection.
*/
selection_info.y=(int) (top_offset+id*selection_info.height);
selection_info.id=(~0);
selection_info.text=(char *) selections[id];
XDrawWidgetText(display,&windows->widget,&selection_info);
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (submenu_info.active != 0)
if (event.xmotion.window == windows->command.id)
{
if ((state & InactiveWidgetState) == 0)
{
if (MatteIsActive(submenu_info,event.xmotion) == MagickFalse)
{
selection_info.id=(~0);
*item='\0';
state|=ExitState;
break;
}
}
else
if (WindowIsActive(windows->command,event.xmotion))
{
selection_info.id=(~0);
*item='\0';
state|=ExitState;
break;
}
}
if (event.xmotion.window != windows->widget.id)
break;
if (state & InactiveWidgetState)
break;
id=(event.xmotion.y-top_offset)/(int) selection_info.height;
if ((selection_info.id >= 0) &&
(selection_info.id < (int) number_selections))
{
/*
Unhighlight last selection.
*/
if (id == selection_info.id)
break;
selection_info.y=(int)
(top_offset+selection_info.id*selection_info.height);
selection_info.text=(char *) selections[selection_info.id];
XDrawWidgetText(display,&windows->widget,&selection_info);
}
selection_info.id=id;
if ((id < 0) || (id >= (int) number_selections))
break;
/*
Highlight this selection.
*/
selection_info.y=(int) (top_offset+id*selection_info.height);
selection_info.text=(char *) selections[id];
XDrawWidgetText(display,&windows->widget,&selection_info);
highlight_info.y=selection_info.y+highlight_info.bevel_width;
XDrawBevel(display,&windows->widget,&highlight_info);
break;
}
default:
break;
}
} while ((state & ExitState) == 0);
(void) XFreeCursor(display,cursor);
window_attributes.override_redirect=MagickFalse;
(void) XChangeWindowAttributes(display,windows->widget.id,
(size_t) CWOverrideRedirect,&window_attributes);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
if (submenu_info.active != 0)
{
submenu_info.active=MagickFalse;
toggle_info.raised=MagickFalse;
XDrawTriangleEast(display,&windows->command,&toggle_info);
}
if ((selection_info.id < 0) || (selection_info.id >= (int) number_selections))
return(~0);
(void) CopyMagickString(item,selections[selection_info.id],MaxTextExtent);
return(selection_info.id);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X N o t i c e W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XNoticeWidget() displays a Notice widget with a notice to the user. The
% function returns when the user presses the "Dismiss" button.
%
% The format of the XNoticeWidget method is:
%
% void XNoticeWidget(Display *display,XWindows *windows,
% const char *reason,const char *description)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o reason: Specifies the message to display before terminating the
% program.
%
% o description: Specifies any description to the message.
%
*/
MagickExport void XNoticeWidget(Display *display,XWindows *windows,
const char *reason,const char *description)
{
#define DismissButtonText "Dismiss"
#define Timeout 8
const char
*text;
int
x,
y;
Status
status;
time_t
timer;
unsigned int
height,
width;
size_t
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
dismiss_info;
XWindowChanges
window_changes;
/*
Determine Notice widget attributes.
*/
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(reason != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",reason);
XDelay(display,SuspendTime << 3); /* avoid surpise with delay */
XSetCursorState(display,windows,MagickTrue);
XCheckRefreshWindows(display,windows);
font_info=windows->widget.font_info;
width=WidgetTextWidth(font_info,DismissButtonText);
text=GetLocaleExceptionMessage(XServerError,reason);
if (text != (char *) NULL)
if (WidgetTextWidth(font_info,(char *) text) > width)
width=WidgetTextWidth(font_info,(char *) text);
if (description != (char *) NULL)
{
text=GetLocaleExceptionMessage(XServerError,description);
if (text != (char *) NULL)
if (WidgetTextWidth(font_info,(char *) text) > width)
width=WidgetTextWidth(font_info,(char *) text);
}
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position Notice widget.
*/
windows->widget.width=width+4*QuantumMargin;
windows->widget.min_width=width+QuantumMargin;
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int) (12*height);
windows->widget.min_height=(unsigned int) (7*height);
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Notice widget.
*/
(void) CopyMagickString(windows->widget.name,"Notice",MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
(unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
(void) XBell(display,0);
/*
Respond to X events.
*/
timer=time((time_t *) NULL)+Timeout;
state=UpdateConfigurationState;
do
{
if (time((time_t *) NULL) > timer)
break;
if (state & UpdateConfigurationState)
{
/*
Initialize Dismiss button information.
*/
XGetWidgetInfo(DismissButtonText,&dismiss_info);
dismiss_info.width=(unsigned int) QuantumMargin+
WidgetTextWidth(font_info,DismissButtonText);
dismiss_info.height=(unsigned int) ((3*height) >> 1);
dismiss_info.x=(int)
((windows->widget.width >> 1)-(dismiss_info.width >> 1));
dismiss_info.y=(int)
(windows->widget.height-(dismiss_info.height << 1));
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Notice widget.
*/
width=WidgetTextWidth(font_info,(char *) reason);
x=(int) ((windows->widget.width >> 1)-(width >> 1));
y=(int) ((windows->widget.height >> 1)-(height << 1));
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,(char *) reason,Extent(reason));
if (description != (char *) NULL)
{
width=WidgetTextWidth(font_info,(char *) description);
x=(int) ((windows->widget.width >> 1)-(width >> 1));
y+=height;
(void) XDrawString(display,windows->widget.id,
windows->widget.annotate_context,x,y,(char *) description,
Extent(description));
}
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~RedrawWidgetState);
}
/*
Wait for next event.
*/
if (XCheckIfEvent(display,&event,XScreenEvent,(char *) windows) == MagickFalse)
{
/*
Do not block if delay > 0.
*/
XDelay(display,SuspendTime << 2);
continue;
}
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(dismiss_info,event.xbutton))
{
/*
User pressed Dismiss button.
*/
dismiss_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
break;
}
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (dismiss_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(dismiss_info,event.xbutton))
state|=ExitState;
dismiss_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
dismiss_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
state|=ExitState;
break;
}
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (state & InactiveWidgetState)
break;
if (dismiss_info.raised == MatteIsActive(dismiss_info,event.xmotion))
{
/*
Dismiss button status changed.
*/
dismiss_info.raised=
dismiss_info.raised == MagickFalse ? MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
break;
}
break;
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X P r e f e r e n c e s W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XPreferencesWidget() displays a Preferences widget with program preferences.
% If the user presses the Apply button, the preferences are stored in a
% configuration file in the users' home directory.
%
% The format of the XPreferencesWidget method is:
%
% MagickBooleanType XPreferencesWidget(Display *display,
% XResourceInfo *resource_info,XWindows *windows)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o resource_info: Specifies a pointer to a X11 XResourceInfo structure.
%
% o window: Specifies a pointer to a XWindows structure.
%
*/
MagickExport MagickBooleanType XPreferencesWidget(Display *display,
XResourceInfo *resource_info,XWindows *windows)
{
#define ApplyButtonText "Apply"
#define CacheButtonText "%lu mega-bytes of memory in the undo edit cache "
#define CancelButtonText "Cancel"
#define NumberPreferences 8
static const char
*Preferences[] =
{
"display image centered on a backdrop",
"confirm on program exit",
"confirm on image edits",
"correct image for display gamma",
"display warning messages",
"apply Floyd/Steinberg error diffusion to image",
"use a shared colormap for colormapped X visuals",
"display images as an X server pixmap"
};
char
cache[MaxTextExtent];
int
x,
y;
register int
i;
Status
status;
unsigned int
height,
text_width,
width;
size_t
state;
XEvent
event;
XFontStruct
*font_info;
XTextProperty
window_name;
XWidgetInfo
apply_info,
cache_info,
cancel_info,
preferences_info[NumberPreferences];
XWindowChanges
window_changes;
/*
Determine Preferences widget attributes.
*/
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(display != (Display *) NULL);
assert(resource_info != (XResourceInfo *) NULL);
assert(windows != (XWindows *) NULL);
XCheckRefreshWindows(display,windows);
font_info=windows->widget.font_info;
text_width=WidgetTextWidth(font_info,CacheButtonText);
for (i=0; i < NumberPreferences; i++)
if (WidgetTextWidth(font_info,(char *) Preferences[i]) > text_width)
text_width=WidgetTextWidth(font_info,(char *) Preferences[i]);
width=WidgetTextWidth(font_info,ApplyButtonText);
if (WidgetTextWidth(font_info,CancelButtonText) > width)
width=WidgetTextWidth(font_info,CancelButtonText);
width+=(unsigned int) QuantumMargin;
height=(unsigned int) (font_info->ascent+font_info->descent);
/*
Position Preferences widget.
*/
windows->widget.width=(unsigned int) (MagickMax((int) (width << 1),
(int) text_width)+6*QuantumMargin);
windows->widget.min_width=(width << 1)+QuantumMargin;
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int)
(7*height+NumberPreferences*(height+(QuantumMargin >> 1)));
windows->widget.min_height=(unsigned int)
(7*height+NumberPreferences*(height+(QuantumMargin >> 1)));
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Preferences widget.
*/
(void) CopyMagickString(windows->widget.name,"Preferences",MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
(unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
state=UpdateConfigurationState;
XSetCursorState(display,windows,MagickTrue);
do
{
if (state & UpdateConfigurationState)
{
/*
Initialize button information.
*/
XGetWidgetInfo(CancelButtonText,&cancel_info);
cancel_info.width=width;
cancel_info.height=(unsigned int) (3*height) >> 1;
cancel_info.x=(int) windows->widget.width-cancel_info.width-
(QuantumMargin << 1);
cancel_info.y=(int) windows->widget.height-
cancel_info.height-QuantumMargin;
XGetWidgetInfo(ApplyButtonText,&apply_info);
apply_info.width=width;
apply_info.height=(unsigned int) (3*height) >> 1;
apply_info.x=QuantumMargin << 1;
apply_info.y=cancel_info.y;
y=(int) (height << 1);
for (i=0; i < NumberPreferences; i++)
{
XGetWidgetInfo(Preferences[i],&preferences_info[i]);
preferences_info[i].bevel_width--;
preferences_info[i].width=(unsigned int) QuantumMargin >> 1;
preferences_info[i].height=(unsigned int) QuantumMargin >> 1;
preferences_info[i].x=QuantumMargin << 1;
preferences_info[i].y=y;
y+=height+(QuantumMargin >> 1);
}
preferences_info[0].raised=resource_info->backdrop ==
MagickFalse ? MagickTrue : MagickFalse;
preferences_info[1].raised=resource_info->confirm_exit ==
MagickFalse ? MagickTrue : MagickFalse;
preferences_info[2].raised=resource_info->confirm_edit ==
MagickFalse ? MagickTrue : MagickFalse;
preferences_info[3].raised=resource_info->gamma_correct ==
MagickFalse ? MagickTrue : MagickFalse;
preferences_info[4].raised=resource_info->display_warnings ==
MagickFalse ? MagickTrue : MagickFalse;
preferences_info[5].raised=resource_info->quantize_info->dither ==
MagickFalse ? MagickTrue : MagickFalse;
preferences_info[6].raised=resource_info->colormap !=
SharedColormap ? MagickTrue : MagickFalse;
preferences_info[7].raised=resource_info->use_pixmap ==
MagickFalse ? MagickTrue : MagickFalse;
(void) FormatMagickString(cache,MaxTextExtent,CacheButtonText,
(unsigned long) resource_info->undo_cache);
XGetWidgetInfo(cache,&cache_info);
cache_info.bevel_width--;
cache_info.width=(unsigned int) QuantumMargin >> 1;
cache_info.height=(unsigned int) QuantumMargin >> 1;
cache_info.x=QuantumMargin << 1;
cache_info.y=y;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Preferences widget.
*/
XDrawBeveledButton(display,&windows->widget,&apply_info);
XDrawBeveledButton(display,&windows->widget,&cancel_info);
for (i=0; i < NumberPreferences; i++)
XDrawBeveledButton(display,&windows->widget,&preferences_info[i]);
XDrawTriangleEast(display,&windows->widget,&cache_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
state&=(~RedrawWidgetState);
}
/*
Wait for next event.
*/
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(apply_info,event.xbutton))
{
/*
User pressed Apply button.
*/
apply_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&apply_info);
break;
}
if (MatteIsActive(cancel_info,event.xbutton))
{
/*
User pressed Cancel button.
*/
cancel_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
for (i=0; i < NumberPreferences; i++)
if (MatteIsActive(preferences_info[i],event.xbutton))
{
/*
User pressed a Preferences button.
*/
preferences_info[i].raised=preferences_info[i].raised ==
MagickFalse ? MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&preferences_info[i]);
break;
}
if (MatteIsActive(cache_info,event.xbutton))
{
/*
User pressed Cache button.
*/
x=cache_info.x+cache_info.width+cache_info.bevel_width+
(QuantumMargin >> 1);
y=cache_info.y+((cache_info.height-height) >> 1);
width=WidgetTextWidth(font_info,cache);
(void) XClearArea(display,windows->widget.id,x,y,width,height,
False);
resource_info->undo_cache<<=1;
if (resource_info->undo_cache > 256)
resource_info->undo_cache=1;
(void) FormatMagickString(cache,MaxTextExtent,CacheButtonText,
(unsigned long) resource_info->undo_cache);
cache_info.raised=MagickFalse;
XDrawTriangleEast(display,&windows->widget,&cache_info);
break;
}
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (apply_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(apply_info,event.xbutton))
state|=ExitState;
apply_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&apply_info);
apply_info.raised=MagickFalse;
}
if (cancel_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(cancel_info,event.xbutton))
state|=ExitState;
cancel_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
}
if (cache_info.raised == MagickFalse)
{
cache_info.raised=MagickTrue;
XDrawTriangleEast(display,&windows->widget,&cache_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
(void) XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
apply_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&apply_info);
state|=ExitState;
break;
}
break;
}
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (state & InactiveWidgetState)
break;
if (apply_info.raised == MatteIsActive(apply_info,event.xmotion))
{
/*
Apply button status changed.
*/
apply_info.raised=
apply_info.raised == MagickFalse ? MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&apply_info);
break;
}
if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
{
/*
Cancel button status changed.
*/
cancel_info.raised=
cancel_info.raised == MagickFalse ? MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&cancel_info);
break;
}
break;
}
default:
break;
}
} while ((state & ExitState) == 0);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
if (apply_info.raised)
return(MagickFalse);
/*
Save user preferences to the client configuration file.
*/
resource_info->backdrop=
preferences_info[0].raised == MagickFalse ? MagickTrue : MagickFalse;
resource_info->confirm_exit=
preferences_info[1].raised == MagickFalse ? MagickTrue : MagickFalse;
resource_info->confirm_edit=
preferences_info[2].raised == MagickFalse ? MagickTrue : MagickFalse;
resource_info->gamma_correct=
preferences_info[3].raised == MagickFalse ? MagickTrue : MagickFalse;
resource_info->display_warnings=
preferences_info[4].raised == MagickFalse ? MagickTrue : MagickFalse;
resource_info->quantize_info->dither=
preferences_info[5].raised == MagickFalse ? MagickTrue : MagickFalse;
resource_info->colormap=SharedColormap;
if (preferences_info[6].raised)
resource_info->colormap=PrivateColormap;
resource_info->use_pixmap=
preferences_info[7].raised == MagickFalse ? MagickTrue : MagickFalse;
XUserPreferences(resource_info);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X P r o g r e s s M o n i t o r W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XProgressMonitorWidget() displays the progress a task is making in
% completing a task. A span of zero toggles the active status. An inactive
% state disables the progress monitor.
%
% The format of the XProgressMonitorWidget method is:
%
% void XProgressMonitorWidget(Display *display,XWindows *windows,
% const char *task,const MagickOffsetType offset,
% const MagickSizeType span)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o task: Identifies the task in progress.
%
% o offset: Specifies the offset position within the span which represents
% how much progress has been made in completing a task.
%
% o span: Specifies the span relative to completing a task.
%
*/
MagickExport void XProgressMonitorWidget(Display *display,XWindows *windows,
const char *task,const MagickOffsetType offset,const MagickSizeType span)
{
unsigned int
width;
XEvent
event;
assert(display != (Display *) NULL);
assert(windows != (XWindows *) NULL);
assert(task != (const char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",task);
if (span == 0)
return;
/*
Update image windows if there is a pending expose event.
*/
while (XCheckTypedWindowEvent(display,windows->command.id,Expose,&event))
(void) XCommandWidget(display,windows,(const char **) NULL,&event);
while (XCheckTypedWindowEvent(display,windows->image.id,Expose,&event))
XRefreshWindow(display,&windows->image,&event);
while (XCheckTypedWindowEvent(display,windows->info.id,Expose,&event))
if (monitor_info.text != (char *) NULL)
XInfoWidget(display,windows,monitor_info.text);
/*
Draw progress monitor bar to represent percent completion of a task.
*/
if ((windows->info.mapped == MagickFalse) || (task != monitor_info.text))
XInfoWidget(display,windows,task);
width=(unsigned int) (((offset+1)*(windows->info.width-
(2*monitor_info.x)))/span);
if (width < monitor_info.width)
{
monitor_info.raised=MagickTrue;
XDrawWidgetText(display,&windows->info,&monitor_info);
monitor_info.raised=MagickFalse;
}
monitor_info.width=width;
XDrawWidgetText(display,&windows->info,&monitor_info);
(void) XFlush(display);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X T e x t V i e w W i d g e t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% XTextViewWidget() displays text in a Text View widget.
%
% The format of the XTextViewWidget method is:
%
% void XTextViewWidget(Display *display,const XResourceInfo *resource_info,
% XWindows *windows,const MagickBooleanType mono,const char *title,
% const char **textlist)
%
% A description of each parameter follows:
%
% o display: Specifies a connection to an X server; returned from
% XOpenDisplay.
%
% o resource_info: Specifies a pointer to a X11 XResourceInfo structure.
%
% o window: Specifies a pointer to a XWindows structure.
%
% o mono: Use mono-spaced font when displaying text.
%
% o title: This character string is displayed at the top of the widget
% window.
%
% o textlist: This string list is displayed within the Text View widget.
%
*/
MagickExport void XTextViewWidget(Display *display,
const XResourceInfo *resource_info,XWindows *windows,
const MagickBooleanType mono,const char *title,const char **textlist)
{
#define DismissButtonText "Dismiss"
char
primary_selection[MaxTextExtent];
register int
i;
static MagickStatusType
mask = (MagickStatusType) (CWWidth | CWHeight | CWX | CWY);
Status
status;
unsigned int
height,
lines,
text_width,
visible_lines,
width;
size_t
delay,
state;
XEvent
event;
XFontStruct
*font_info,
*text_info;
XTextProperty
window_name;
XWidgetInfo
dismiss_info,
expose_info,
list_info,
north_info,
scroll_info,
selection_info,
slider_info,
south_info;
XWindowChanges
window_changes;
/*
Convert text string to a text list.
*/
assert(display != (Display *) NULL);
assert(resource_info != (XResourceInfo *) NULL);
assert(windows != (XWindows *) NULL);
assert(title != (const char *) NULL);
assert(textlist != (const char **) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",title);
XSetCursorState(display,windows,MagickTrue);
XCheckRefreshWindows(display,windows);
if (textlist == (const char **) NULL)
{
XNoticeWidget(display,windows,"No text to view:",(char *) NULL);
return;
}
/*
Determine Text View widget attributes.
*/
font_info=windows->widget.font_info;
text_info=(XFontStruct *) NULL;
if (mono != MagickFalse)
text_info=XBestFont(display,resource_info,MagickTrue);
if (text_info == (XFontStruct *) NULL)
text_info=windows->widget.font_info;
text_width=0;
for (i=0; textlist[i] != (char *) NULL; i++)
if (WidgetTextWidth(text_info,(char *) textlist[i]) > text_width)
text_width=(unsigned int) XTextWidth(text_info,(char *) textlist[i],
MagickMin(Extent(textlist[i]),160));
lines=(unsigned int) i;
width=WidgetTextWidth(font_info,DismissButtonText);
width+=QuantumMargin;
height=(unsigned int) (text_info->ascent+text_info->descent);
/*
Position Text View widget.
*/
windows->widget.width=(unsigned int) (MagickMin((int) text_width,
(int) MaxTextWidth)+5*QuantumMargin);
windows->widget.min_width=(unsigned int) (MinTextWidth+4*QuantumMargin);
if (windows->widget.width < windows->widget.min_width)
windows->widget.width=windows->widget.min_width;
windows->widget.height=(unsigned int) (MagickMin(MagickMax((int) lines,3),32)*
height+((13*height) >> 1)+((9*QuantumMargin) >> 1));
windows->widget.min_height=(unsigned int) (3*height+((13*height) >> 1)+((9*
QuantumMargin) >> 1));
if (windows->widget.height < windows->widget.min_height)
windows->widget.height=windows->widget.min_height;
XConstrainWindowPosition(display,&windows->widget);
/*
Map Text View widget.
*/
(void) CopyMagickString(windows->widget.name,title,MaxTextExtent);
status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
if (status != False)
{
XSetWMName(display,windows->widget.id,&window_name);
XSetWMIconName(display,windows->widget.id,&window_name);
(void) XFree((void *) window_name.value);
}
window_changes.width=(int) windows->widget.width;
window_changes.height=(int) windows->widget.height;
window_changes.x=windows->widget.x;
window_changes.y=windows->widget.y;
(void) XReconfigureWMWindow(display,windows->widget.id,
windows->widget.screen,(unsigned int) mask,&window_changes);
(void) XMapRaised(display,windows->widget.id);
windows->widget.mapped=MagickFalse;
/*
Respond to X events.
*/
XGetWidgetInfo((char *) NULL,&slider_info);
XGetWidgetInfo((char *) NULL,&north_info);
XGetWidgetInfo((char *) NULL,&south_info);
XGetWidgetInfo((char *) NULL,&expose_info);
visible_lines=0;
delay=SuspendTime << 2;
height=(unsigned int) (font_info->ascent+font_info->descent);
state=UpdateConfigurationState;
do
{
if (state & UpdateConfigurationState)
{
int
id;
/*
Initialize button information.
*/
XGetWidgetInfo(DismissButtonText,&dismiss_info);
dismiss_info.width=width;
dismiss_info.height=(unsigned int) ((3*height) >> 1);
dismiss_info.x=(int) windows->widget.width-dismiss_info.width-
QuantumMargin-2;
dismiss_info.y=(int) windows->widget.height-dismiss_info.height-
QuantumMargin;
/*
Initialize scroll information.
*/
XGetWidgetInfo((char *) NULL,&scroll_info);
scroll_info.bevel_width--;
scroll_info.width=height;
scroll_info.height=(unsigned int) (dismiss_info.y-((5*QuantumMargin) >>
1));
scroll_info.x=(int) windows->widget.width-QuantumMargin-
scroll_info.width;
scroll_info.y=(3*QuantumMargin) >> 1;
scroll_info.raised=MagickFalse;
scroll_info.trough=MagickTrue;
north_info=scroll_info;
north_info.raised=MagickTrue;
north_info.width-=(north_info.bevel_width << 1);
north_info.height=north_info.width-1;
north_info.x+=north_info.bevel_width;
north_info.y+=north_info.bevel_width;
south_info=north_info;
south_info.y=scroll_info.y+scroll_info.height-scroll_info.bevel_width-
south_info.height;
id=slider_info.id;
slider_info=north_info;
slider_info.id=id;
slider_info.width-=2;
slider_info.min_y=north_info.y+north_info.height+north_info.bevel_width+
slider_info.bevel_width+2;
slider_info.height=scroll_info.height-((slider_info.min_y-
scroll_info.y+1) << 1)+4;
visible_lines=scroll_info.height/(text_info->ascent+text_info->descent+
((text_info->ascent+text_info->descent) >> 3));
if (lines > visible_lines)
slider_info.height=(unsigned int) (visible_lines*slider_info.height)/
lines;
slider_info.max_y=south_info.y-south_info.bevel_width-
slider_info.bevel_width-2;
slider_info.x=scroll_info.x+slider_info.bevel_width+1;
slider_info.y=slider_info.min_y;
expose_info=scroll_info;
expose_info.y=slider_info.y;
/*
Initialize list information.
*/
XGetWidgetInfo((char *) NULL,&list_info);
list_info.raised=MagickFalse;
list_info.bevel_width--;
list_info.width=(unsigned int) scroll_info.x-((3*QuantumMargin) >> 1);
list_info.height=scroll_info.height;
list_info.x=QuantumMargin;
list_info.y=scroll_info.y;
/*
Initialize selection information.
*/
XGetWidgetInfo((char *) NULL,&selection_info);
selection_info.center=MagickFalse;
selection_info.width=list_info.width;
selection_info.height=(unsigned int)
(9*(text_info->ascent+text_info->descent)) >> 3;
selection_info.x=list_info.x;
state&=(~UpdateConfigurationState);
}
if (state & RedrawWidgetState)
{
/*
Redraw Text View window.
*/
XDrawBeveledMatte(display,&windows->widget,&list_info);
XDrawBeveledMatte(display,&windows->widget,&scroll_info);
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
selection_info.id=(~0);
state|=RedrawListState;
state&=(~RedrawWidgetState);
}
if (state & RedrawListState)
{
/*
Determine slider id and position.
*/
if (slider_info.id >= (int) (lines-visible_lines))
slider_info.id=(int) lines-visible_lines;
if ((slider_info.id < 0) || (lines <= visible_lines))
slider_info.id=0;
slider_info.y=slider_info.min_y;
if (lines != 0)
slider_info.y+=
slider_info.id*(slider_info.max_y-slider_info.min_y+1)/lines;
if (slider_info.id != selection_info.id)
{
/*
Redraw scroll bar and text.
*/
windows->widget.font_info=text_info;
(void) XSetFont(display,windows->widget.annotate_context,
text_info->fid);
(void) XSetFont(display,windows->widget.highlight_context,
text_info->fid);
selection_info.id=slider_info.id;
selection_info.y=list_info.y+(height >> 3)+2;
for (i=0; i < (int) visible_lines; i++)
{
selection_info.raised=
(slider_info.id+i) != list_info.id ? MagickTrue : MagickFalse;
selection_info.text=(char *) NULL;
if ((slider_info.id+i) < (int) lines)
selection_info.text=(char *) textlist[slider_info.id+i];
XDrawWidgetText(display,&windows->widget,&selection_info);
selection_info.y+=(int) selection_info.height;
}
windows->widget.font_info=font_info;
(void) XSetFont(display,windows->widget.annotate_context,
font_info->fid);
(void) XSetFont(display,windows->widget.highlight_context,
font_info->fid);
/*
Update slider.
*/
if (slider_info.y > expose_info.y)
{
expose_info.height=(unsigned int) slider_info.y-expose_info.y;
expose_info.y=slider_info.y-expose_info.height-
slider_info.bevel_width-1;
}
else
{
expose_info.height=(unsigned int) expose_info.y-slider_info.y;
expose_info.y=slider_info.y+slider_info.height+
slider_info.bevel_width+1;
}
XDrawTriangleNorth(display,&windows->widget,&north_info);
XDrawMatte(display,&windows->widget,&expose_info);
XDrawBeveledButton(display,&windows->widget,&slider_info);
XDrawTriangleSouth(display,&windows->widget,&south_info);
expose_info.y=slider_info.y;
}
state&=(~RedrawListState);
}
/*
Wait for next event.
*/
if (north_info.raised && south_info.raised)
(void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
else
{
/*
Brief delay before advancing scroll bar.
*/
XDelay(display,delay);
delay=SuspendTime;
(void) XCheckIfEvent(display,&event,XScreenEvent,(char *) windows);
if (north_info.raised == MagickFalse)
if (slider_info.id > 0)
{
/*
Move slider up.
*/
slider_info.id--;
state|=RedrawListState;
}
if (south_info.raised == MagickFalse)
if (slider_info.id < (int) lines)
{
/*
Move slider down.
*/
slider_info.id++;
state|=RedrawListState;
}
if (event.type != ButtonRelease)
continue;
}
switch (event.type)
{
case ButtonPress:
{
if (MatteIsActive(slider_info,event.xbutton))
{
/*
Track slider.
*/
slider_info.active=MagickTrue;
break;
}
if (MatteIsActive(north_info,event.xbutton))
if (slider_info.id > 0)
{
/*
Move slider up.
*/
north_info.raised=MagickFalse;
slider_info.id--;
state|=RedrawListState;
break;
}
if (MatteIsActive(south_info,event.xbutton))
if (slider_info.id < (int) lines)
{
/*
Move slider down.
*/
south_info.raised=MagickFalse;
slider_info.id++;
state|=RedrawListState;
break;
}
if (MatteIsActive(scroll_info,event.xbutton))
{
/*
Move slider.
*/
if (event.xbutton.y < slider_info.y)
slider_info.id-=(visible_lines-1);
else
slider_info.id+=(visible_lines-1);
state|=RedrawListState;
break;
}
if (MatteIsActive(dismiss_info,event.xbutton))
{
/*
User pressed Dismiss button.
*/
dismiss_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
break;
}
if (MatteIsActive(list_info,event.xbutton))
{
int
id;
static Time
click_time;
/*
User pressed list matte.
*/
id=slider_info.id+(event.xbutton.y-(list_info.y+(height >> 1))+1)/
selection_info.height;
if (id >= (int) lines)
break;
if (id != list_info.id)
{
list_info.id=id;
click_time=event.xbutton.time;
break;
}
list_info.id=id;
if (event.xbutton.time >= (click_time+DoubleClick))
{
click_time=event.xbutton.time;
break;
}
click_time=event.xbutton.time;
/*
Become the XA_PRIMARY selection owner.
*/
(void) CopyMagickString(primary_selection,textlist[list_info.id],
MaxTextExtent);
(void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
event.xbutton.time);
if (XGetSelectionOwner(display,XA_PRIMARY) != windows->widget.id)
break;
selection_info.id=(~0);
list_info.id=id;
state|=RedrawListState;
break;
}
break;
}
case ButtonRelease:
{
if (windows->widget.mapped == MagickFalse)
break;
if (north_info.raised == MagickFalse)
{
/*
User released up button.
*/
delay=SuspendTime << 2;
north_info.raised=MagickTrue;
XDrawTriangleNorth(display,&windows->widget,&north_info);
}
if (south_info.raised == MagickFalse)
{
/*
User released down button.
*/
delay=SuspendTime << 2;
south_info.raised=MagickTrue;
XDrawTriangleSouth(display,&windows->widget,&south_info);
}
if (slider_info.active)
{
/*
Stop tracking slider.
*/
slider_info.active=MagickFalse;
break;
}
if (dismiss_info.raised == MagickFalse)
{
if (event.xbutton.window == windows->widget.id)
if (MatteIsActive(dismiss_info,event.xbutton))
state|=ExitState;
dismiss_info.raised=MagickTrue;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
}
break;
}
case ClientMessage:
{
/*
If client window delete message, exit.
*/
if (event.xclient.message_type != windows->wm_protocols)
break;
if (*event.xclient.data.l == (int) windows->wm_take_focus)
{
(void) XSetInputFocus(display,event.xclient.window,RevertToParent,
(Time) event.xclient.data.l[1]);
break;
}
if (*event.xclient.data.l != (int) windows->wm_delete_window)
break;
if (event.xclient.window == windows->widget.id)
{
state|=ExitState;
break;
}
break;
}
case ConfigureNotify:
{
/*
Update widget configuration.
*/
if (event.xconfigure.window != windows->widget.id)
break;
if ((event.xconfigure.width == (int) windows->widget.width) &&
(event.xconfigure.height == (int) windows->widget.height))
break;
windows->widget.width=(unsigned int)
MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
windows->widget.height=(unsigned int)
MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
state|=UpdateConfigurationState;
break;
}
case EnterNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state&=(~InactiveWidgetState);
break;
}
case Expose:
{
if (event.xexpose.window != windows->widget.id)
break;
if (event.xexpose.count != 0)
break;
state|=RedrawWidgetState;
break;
}
case KeyPress:
{
static char
command[MaxTextExtent];
static int
length;
static KeySym
key_symbol;
/*
Respond to a user key press.
*/
if (event.xkey.window != windows->widget.id)
break;
length=XLookupString((XKeyEvent *) &event.xkey,command,
(int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
*(command+length)='\0';
if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
{
dismiss_info.raised=MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
state|=ExitState;
break;
}
if (AreaIsActive(scroll_info,event.xkey))
{
/*
Move slider.
*/
switch ((int) key_symbol)
{
case XK_Home:
case XK_KP_Home:
{
slider_info.id=0;
break;
}
case XK_Up:
case XK_KP_Up:
{
slider_info.id--;
break;
}
case XK_Down:
case XK_KP_Down:
{
slider_info.id++;
break;
}
case XK_Prior:
case XK_KP_Prior:
{
slider_info.id-=visible_lines;
break;
}
case XK_Next:
case XK_KP_Next:
{
slider_info.id+=visible_lines;
break;
}
case XK_End:
case XK_KP_End:
{
slider_info.id=(int) lines;
break;
}
}
state|=RedrawListState;
break;
}
break;
}
case KeyRelease:
break;
case LeaveNotify:
{
if (event.xcrossing.window != windows->widget.id)
break;
state|=InactiveWidgetState;
break;
}
case MapNotify:
{
mask&=(~CWX);
mask&=(~CWY);
break;
}
case MotionNotify:
{
/*
Discard pending button motion events.
*/
while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
if (slider_info.active)
{
/*
Move slider matte.
*/
slider_info.y=event.xmotion.y-
((slider_info.height+slider_info.bevel_width) >> 1)+1;
if (slider_info.y < slider_info.min_y)
slider_info.y=slider_info.min_y;
if (slider_info.y > slider_info.max_y)
slider_info.y=slider_info.max_y;
slider_info.id=0;
if (slider_info.y != slider_info.min_y)
slider_info.id=(int) (lines*(slider_info.y-slider_info.min_y+1))/
(slider_info.max_y-slider_info.min_y+1);
state|=RedrawListState;
break;
}
if (state & InactiveWidgetState)
break;
if (dismiss_info.raised == MatteIsActive(dismiss_info,event.xmotion))
{
/*
Dismiss button status changed.
*/
dismiss_info.raised=
dismiss_info.raised == MagickFalse ? MagickTrue : MagickFalse;
XDrawBeveledButton(display,&windows->widget,&dismiss_info);
break;
}
break;
}
case SelectionClear:
{
list_info.id=(~0);
selection_info.id=(~0);
state|=RedrawListState;
break;
}
case SelectionRequest:
{
XSelectionEvent
notify;
XSelectionRequestEvent
*request;
if (list_info.id == (~0))
break;
/*
Set primary selection.
*/
request=(&(event.xselectionrequest));
(void) XChangeProperty(request->display,request->requestor,
request->property,request->target,8,PropModeReplace,
(unsigned char *) primary_selection,Extent(primary_selection));
notify.type=SelectionNotify;
notify.send_event=MagickTrue;
notify.display=request->display;
notify.requestor=request->requestor;
notify.selection=request->selection;
notify.target=request->target;
notify.time=request->time;
if (request->property == None)
notify.property=request->target;
else
notify.property=request->property;
(void) XSendEvent(request->display,request->requestor,False,NoEventMask,
(XEvent *) &notify);
}
default:
break;
}
} while ((state & ExitState) == 0);
if (text_info != windows->widget.font_info)
(void) XFreeFont(display,text_info);
XSetCursorState(display,windows,MagickFalse);
(void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
XCheckRefreshWindows(display,windows);
}
#endif