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cristy3ed852e2009-09-05 21:47:34 +00001/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3% %
4% %
5% %
6% AAA N N N N OOO TTTTT AAA TTTTT EEEEE %
7% A A NN N NN N O O T A A T E %
8% AAAAA N N N N N N O O T AAAAA T EEE %
9% A A N NN N NN O O T A A T E %
10% A A N N N N OOO T A A T EEEEE %
11% %
12% %
13% MagickCore Image Annotation Methods %
14% %
15% Software Design %
16% John Cristy %
17% July 1992 %
18% %
19% %
20% Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization %
21% dedicated to making software imaging solutions freely available. %
22% %
23% You may not use this file except in compliance with the License. You may %
24% obtain a copy of the License at %
25% %
26% http://www.imagemagick.org/script/license.php %
27% %
28% Unless required by applicable law or agreed to in writing, software %
29% distributed under the License is distributed on an "AS IS" BASIS, %
30% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31% See the License for the specific language governing permissions and %
32% limitations under the License. %
33% %
34%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35%
36% Digital Applications (www.digapp.com) contributed the stroked text algorithm.
37% It was written by Leonard Rosenthol.
38%
39%
40*/
41
42/*
43 Include declarations.
44*/
45#include "magick/studio.h"
46#include "magick/annotate.h"
cristy5a2ca482009-10-14 18:24:56 +000047#include "magick/attribute.h"
cristy3ed852e2009-09-05 21:47:34 +000048#include "magick/cache-view.h"
49#include "magick/client.h"
50#include "magick/color.h"
51#include "magick/color-private.h"
52#include "magick/composite.h"
53#include "magick/composite-private.h"
54#include "magick/constitute.h"
55#include "magick/draw.h"
56#include "magick/draw-private.h"
57#include "magick/exception.h"
58#include "magick/exception-private.h"
59#include "magick/gem.h"
60#include "magick/geometry.h"
61#include "magick/image-private.h"
62#include "magick/log.h"
63#include "magick/quantum.h"
64#include "magick/quantum-private.h"
65#include "magick/property.h"
66#include "magick/resource_.h"
67#include "magick/statistic.h"
68#include "magick/string_.h"
69#include "magick/token-private.h"
70#include "magick/transform.h"
71#include "magick/type.h"
72#include "magick/utility.h"
73#include "magick/xwindow-private.h"
74#if defined(MAGICKCORE_FREETYPE_DELEGATE)
75#if defined(__MINGW32__)
76# undef interface
77#endif
78#if defined(MAGICKCORE_HAVE_FT2BUILD_H)
79# include <ft2build.h>
80#endif
81#if defined(FT_FREETYPE_H)
82# include FT_FREETYPE_H
83#else
84# include <freetype/freetype.h>
85#endif
86#if defined(FT_GLYPH_H)
87# include FT_GLYPH_H
88#else
89# include <freetype/ftglyph.h>
90#endif
91#if defined(FT_OUTLINE_H)
92# include FT_OUTLINE_H
93#else
94# include <freetype/ftoutln.h>
95#endif
96#if defined(FT_BBOX_H)
97# include FT_BBOX_H
98#else
99# include <freetype/ftbbox.h>
100#endif /* defined(FT_BBOX_H) */
101#endif
102
103/*
104 Forward declarations.
105*/
106static MagickBooleanType
107 RenderType(Image *,const DrawInfo *,const PointInfo *,TypeMetric *),
108 RenderPostscript(Image *,const DrawInfo *,const PointInfo *,TypeMetric *),
109 RenderFreetype(Image *,const DrawInfo *,const char *,const PointInfo *,
110 TypeMetric *),
111 RenderX11(Image *,const DrawInfo *,const PointInfo *,TypeMetric *);
112
113/*
114%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
115% %
116% %
117% %
118% A n n o t a t e I m a g e %
119% %
120% %
121% %
122%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
123%
124% AnnotateImage() annotates an image with text. Optionally you can include
125% any of the following bits of information about the image by embedding
126% the appropriate special characters:
127%
128% %b file size in bytes.
129% %c comment.
130% %d directory in which the image resides.
131% %e extension of the image file.
132% %f original filename of the image.
133% %h height of image.
134% %i filename of the image.
135% %k number of unique colors.
136% %l image label.
137% %m image file format.
138% %n number of images in a image sequence.
139% %o output image filename.
140% %p page number of the image.
141% %q image depth (8 or 16).
142% %q image depth (8 or 16).
143% %s image scene number.
144% %t image filename without any extension.
145% %u a unique temporary filename.
146% %w image width.
147% %x x resolution of the image.
148% %y y resolution of the image.
149%
150% The format of the AnnotateImage method is:
151%
152% MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info)
153%
154% A description of each parameter follows:
155%
156% o image: the image.
157%
158% o draw_info: the draw info.
159%
160*/
161MagickExport MagickBooleanType AnnotateImage(Image *image,
162 const DrawInfo *draw_info)
163{
164 char
165 primitive[MaxTextExtent],
166 **textlist;
167
168 DrawInfo
169 *annotate,
170 *annotate_info;
171
172 GeometryInfo
173 geometry_info;
174
175 MagickBooleanType
176 status;
177
178 PointInfo
179 offset;
180
181 RectangleInfo
182 geometry;
183
184 register long
185 i;
186
187 size_t
188 length;
189
190 TypeMetric
191 metrics;
192
193 unsigned long
cristy58460392009-09-09 01:52:06 +0000194 height,
cristy3ed852e2009-09-05 21:47:34 +0000195 number_lines;
196
197 assert(image != (Image *) NULL);
198 assert(image->signature == MagickSignature);
199 if (image->debug != MagickFalse)
200 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
201 assert(draw_info != (DrawInfo *) NULL);
202 assert(draw_info->signature == MagickSignature);
203 if (draw_info->text == (char *) NULL)
204 return(MagickFalse);
205 if (*draw_info->text == '\0')
206 return(MagickTrue);
207 textlist=StringToList(draw_info->text);
208 if (textlist == (char **) NULL)
209 return(MagickFalse);
210 length=strlen(textlist[0]);
211 for (i=1; textlist[i] != (char *) NULL; i++)
212 if (strlen(textlist[i]) > length)
213 length=strlen(textlist[i]);
214 number_lines=(unsigned long) i;
215 annotate=CloneDrawInfo((ImageInfo *) NULL,draw_info);
216 annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
217 SetGeometry(image,&geometry);
218 SetGeometryInfo(&geometry_info);
219 if (annotate_info->geometry != (char *) NULL)
220 {
221 (void) ParsePageGeometry(image,annotate_info->geometry,&geometry,
222 &image->exception);
223 (void) ParseGeometry(annotate_info->geometry,&geometry_info);
224 }
225 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
226 return(MagickFalse);
227 status=MagickTrue;
228 for (i=0; textlist[i] != (char *) NULL; i++)
229 {
230 /*
231 Position text relative to image.
232 */
233 annotate_info->affine.tx=geometry_info.xi-image->page.x;
234 annotate_info->affine.ty=geometry_info.psi-image->page.y;
235 (void) CloneString(&annotate->text,textlist[i]);
236 (void) GetTypeMetrics(image,annotate,&metrics);
cristy58460392009-09-09 01:52:06 +0000237 height=(long) (metrics.ascent-metrics.descent+
238 draw_info->interline_spacing+0.5);
cristy3ed852e2009-09-05 21:47:34 +0000239 switch (annotate->gravity)
240 {
241 case UndefinedGravity:
242 default:
243 {
244 offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height;
245 offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height;
246 break;
247 }
248 case NorthWestGravity:
249 {
250 offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
251 annotate_info->affine.ry*height+annotate_info->affine.ry*
252 (metrics.ascent+metrics.descent);
253 offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
254 annotate_info->affine.sy*height+annotate_info->affine.sy*
255 metrics.ascent;
256 break;
257 }
258 case NorthGravity:
259 {
260 offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
261 geometry.width/2.0+i*annotate_info->affine.ry*height-
262 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+
263 annotate_info->affine.ry*(metrics.ascent+metrics.descent);
264 offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
265 annotate_info->affine.sy*height+annotate_info->affine.sy*
266 metrics.ascent-annotate_info->affine.rx*(metrics.width-
267 metrics.bounds.x1)/2.0;
268 break;
269 }
270 case NorthEastGravity:
271 {
272 offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
273 geometry.width+i*annotate_info->affine.ry*height-
274 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+
275 annotate_info->affine.ry*(metrics.ascent+metrics.descent)-1.0;
276 offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
277 annotate_info->affine.sy*height+annotate_info->affine.sy*
278 metrics.ascent-annotate_info->affine.rx*(metrics.width-
279 metrics.bounds.x1);
280 break;
281 }
282 case WestGravity:
283 {
284 offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
285 annotate_info->affine.ry*height+annotate_info->affine.ry*
286 (metrics.ascent+metrics.descent-(number_lines-1.0)*height)/2.0;
287 offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
288 geometry.height/2.0+i*annotate_info->affine.sy*height+
289 annotate_info->affine.sy*(metrics.ascent+metrics.descent-
290 (number_lines-1.0)*height)/2.0;
291 break;
292 }
293 case StaticGravity:
294 case CenterGravity:
295 {
296 offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
297 geometry.width/2.0+i*annotate_info->affine.ry*height-
298 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+
299 annotate_info->affine.ry*(metrics.ascent+metrics.descent-
300 (number_lines-1)*height)/2.0;
301 offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
302 geometry.height/2.0+i*annotate_info->affine.sy*height-
303 annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0+
304 annotate_info->affine.sy*(metrics.ascent+metrics.descent-
305 (number_lines-1.0)*height)/2.0;
306 break;
307 }
308 case EastGravity:
309 {
310 offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
311 geometry.width+i*annotate_info->affine.ry*height-
312 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+
313 annotate_info->affine.ry*(metrics.ascent+metrics.descent-
314 (number_lines-1.0)*height)/2.0-1.0;
315 offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
316 geometry.height/2.0+i*annotate_info->affine.sy*height-
317 annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)+
318 annotate_info->affine.sy*(metrics.ascent+metrics.descent-
319 (number_lines-1.0)*height)/2.0;
320 break;
321 }
322 case SouthWestGravity:
323 {
324 offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
325 annotate_info->affine.ry*height-annotate_info->affine.ry*
326 (number_lines-1.0)*height;
327 offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
328 geometry.height+i*annotate_info->affine.sy*height-
329 annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
330 break;
331 }
332 case SouthGravity:
333 {
334 offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
335 geometry.width/2.0+i*annotate_info->affine.ry*height-
336 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0-
337 annotate_info->affine.ry*(number_lines-1.0)*height/2.0;
338 offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
339 geometry.height+i*annotate_info->affine.sy*height-
340 annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0-
341 annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
342 break;
343 }
344 case SouthEastGravity:
345 {
346 offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
347 geometry.width+i*annotate_info->affine.ry*height-
348 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)-
349 annotate_info->affine.ry*(number_lines-1.0)*height-1.0;
350 offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
351 geometry.height+i*annotate_info->affine.sy*height-
352 annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)-
353 annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
354 break;
355 }
356 }
357 switch (annotate->align)
358 {
359 case LeftAlign:
360 {
361 offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height;
362 offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height;
363 break;
364 }
365 case CenterAlign:
366 {
367 offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height-
368 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0;
369 offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height-
370 annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0;
371 break;
372 }
373 case RightAlign:
374 {
375 offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height-
376 annotate_info->affine.sx*(metrics.width+metrics.bounds.x1);
377 offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height-
378 annotate_info->affine.rx*(metrics.width+metrics.bounds.x1);
379 break;
380 }
381 default:
382 break;
383 }
384 if (draw_info->undercolor.opacity != TransparentOpacity)
385 {
386 DrawInfo
387 *undercolor_info;
388
389 /*
390 Text box.
391 */
392 undercolor_info=CloneDrawInfo((ImageInfo *) NULL,(DrawInfo *) NULL);
393 undercolor_info->fill=draw_info->undercolor;
394 undercolor_info->affine=draw_info->affine;
395 undercolor_info->affine.tx=offset.x-draw_info->affine.ry*metrics.ascent;
396 undercolor_info->affine.ty=offset.y-draw_info->affine.sy*metrics.ascent;
397 (void) FormatMagickString(primitive,MaxTextExtent,
cristy58460392009-09-09 01:52:06 +0000398 "rectangle 0,0 %g,%lu",metrics.origin.x,height);
cristy3ed852e2009-09-05 21:47:34 +0000399 (void) CloneString(&undercolor_info->primitive,primitive);
400 (void) DrawImage(image,undercolor_info);
401 (void) DestroyDrawInfo(undercolor_info);
402 }
403 annotate_info->affine.tx=offset.x;
404 annotate_info->affine.ty=offset.y;
405 (void) FormatMagickString(primitive,MaxTextExtent,"stroke-width %g "
406 "line 0,0 %g,0",metrics.underline_thickness,metrics.width);
407 if (annotate->decorate == OverlineDecoration)
408 {
409 annotate_info->affine.ty-=(draw_info->affine.sy*(metrics.ascent+
410 metrics.descent-metrics.underline_position));
411 (void) CloneString(&annotate_info->primitive,primitive);
412 (void) DrawImage(image,annotate_info);
413 }
414 else
415 if (annotate->decorate == UnderlineDecoration)
416 {
417 annotate_info->affine.ty-=(draw_info->affine.sy*
418 metrics.underline_position);
419 (void) CloneString(&annotate_info->primitive,primitive);
420 (void) DrawImage(image,annotate_info);
421 }
422 /*
423 Annotate image with text.
424 */
425 status=RenderType(image,annotate,&offset,&metrics);
426 if (status == MagickFalse)
427 break;
428 if (annotate->decorate == LineThroughDecoration)
429 {
430 annotate_info->affine.ty-=(draw_info->affine.sy*(height+
431 metrics.underline_position+metrics.descent)/2.0);
432 (void) CloneString(&annotate_info->primitive,primitive);
433 (void) DrawImage(image,annotate_info);
434 }
435 }
436 /*
437 Relinquish resources.
438 */
439 annotate_info=DestroyDrawInfo(annotate_info);
440 annotate=DestroyDrawInfo(annotate);
441 for (i=0; textlist[i] != (char *) NULL; i++)
442 textlist[i]=DestroyString(textlist[i]);
443 textlist=(char **) RelinquishMagickMemory(textlist);
444 return(status);
445}
446
447/*
448%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
449% %
450% %
451% %
452% F o r m a t M a g i c k C a p t i o n %
453% %
454% %
455% %
456%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
457%
458% FormatMagickCaption() formats a caption so that it fits within the image
459% width. It returns the number of lines in the formatted caption.
460%
461% The format of the FormatMagickCaption method is:
462%
463% long FormatMagickCaption(Image *image,DrawInfo *draw_info,
464% TypeMetric *metrics,char **caption)
465%
466% A description of each parameter follows.
467%
468% o image: The image.
469%
470% o caption: the caption.
471%
472% o draw_info: the draw info.
473%
474% o metrics: Return the font metrics in this structure.
475%
476*/
477MagickExport long FormatMagickCaption(Image *image,DrawInfo *draw_info,
478 TypeMetric *metrics,char **caption)
479{
480 MagickBooleanType
481 status;
482
483 register char
484 *p,
485 *q,
486 *s;
487
488 register long
489 i;
490
491 unsigned long
492 width;
493
494 q=draw_info->text;
495 s=(char *) NULL;
496 for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p))
497 {
498 if (IsUTFSpace(GetUTFCode(p)) != MagickFalse)
499 s=p;
500 for (i=0; i < (long) GetUTFOctets(p); i++)
501 *q++=(*(p+i));
502 *q='\0';
503 status=GetTypeMetrics(image,draw_info,metrics);
504 if (status == MagickFalse)
505 break;
506 width=(unsigned long) (metrics->width+0.5);
507 if (GetUTFCode(p) != '\n')
508 if (width <= image->columns)
509 continue;
510 if (s == (char *) NULL)
511 {
512 s=p;
513 while ((IsUTFSpace(GetUTFCode(s)) == MagickFalse) &&
514 (GetUTFCode(s) != 0))
515 s+=GetUTFOctets(s);
516 }
517 if (GetUTFCode(s) != 0)
518 {
519 *s='\n';
520 p=s;
521 }
522 else
523 {
524 char
525 *target;
526
527 long
528 n;
529
530 /*
531 No convenient line breaks-- insert newline.
532 */
533 target=AcquireString(*caption);
534 n=p-(*caption);
535 CopyMagickString(target,*caption,n+1);
536 ConcatenateMagickString(target,"\n",strlen(*caption)+1);
537 ConcatenateMagickString(target,p,strlen(*caption)+2);
538 (void) DestroyString(*caption);
539 *caption=target;
540 p=(*caption)+n;
541 }
542 s=(char *) NULL;
543 q=draw_info->text;
544 }
545 i=0;
546 for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p))
547 if (GetUTFCode(p) == '\n')
548 i++;
549 return(i);
550}
551
552/*
553%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
554% %
555% %
556% %
557% G e t M u l t i l i n e T y p e M e t r i c s %
558% %
559% %
560% %
561%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
562%
563% GetMultilineTypeMetrics() returns the following information for the
564% specified font and text:
565%
566% character width
567% character height
568% ascender
569% descender
570% text width
571% text height
572% maximum horizontal advance
573% bounds: x1
574% bounds: y1
575% bounds: x2
576% bounds: y2
577% origin: x
578% origin: y
579% underline position
580% underline thickness
581%
582% This method is like GetTypeMetrics() but it returns the maximum text width
583% and height for multiple lines of text.
584%
585% The format of the GetMultilineTypeMetrics method is:
586%
587% MagickBooleanType GetMultilineTypeMetrics(Image *image,
588% const DrawInfo *draw_info,TypeMetric *metrics)
589%
590% A description of each parameter follows:
591%
592% o image: the image.
593%
594% o draw_info: the draw info.
595%
596% o metrics: Return the font metrics in this structure.
597%
598*/
599MagickExport MagickBooleanType GetMultilineTypeMetrics(Image *image,
600 const DrawInfo *draw_info,TypeMetric *metrics)
601{
602 char
603 **textlist;
604
605 DrawInfo
606 *annotate_info;
607
608 MagickBooleanType
609 status;
610
611 register long
612 i;
613
614 TypeMetric
615 extent;
616
cristy3ed852e2009-09-05 21:47:34 +0000617 assert(image != (Image *) NULL);
618 assert(image->signature == MagickSignature);
619 if (image->debug != MagickFalse)
620 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
621 assert(draw_info != (DrawInfo *) NULL);
622 assert(draw_info->text != (char *) NULL);
623 assert(draw_info->signature == MagickSignature);
624 if (*draw_info->text == '\0')
625 return(MagickFalse);
626 annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
627 annotate_info->text=DestroyString(annotate_info->text);
628 /*
629 Convert newlines to multiple lines of text.
630 */
631 textlist=StringToList(draw_info->text);
632 if (textlist == (char **) NULL)
633 return(MagickFalse);
634 annotate_info->render=MagickFalse;
635 (void) ResetMagickMemory(metrics,0,sizeof(*metrics));
636 (void) ResetMagickMemory(&extent,0,sizeof(extent));
637 /*
638 Find the widest of the text lines.
639 */
640 annotate_info->text=textlist[0];
641 status=GetTypeMetrics(image,annotate_info,&extent);
642 *metrics=extent;
643 for (i=1; textlist[i] != (char *) NULL; i++)
644 {
645 annotate_info->text=textlist[i];
646 status=GetTypeMetrics(image,annotate_info,&extent);
647 if (extent.width > metrics->width)
648 *metrics=extent;
649 }
cristyd2a95142009-09-09 04:07:26 +0000650 metrics->height=(double) (i*(unsigned long) (metrics->ascent-
651 metrics->descent+0.5)+(i-1)*draw_info->interline_spacing);
cristy3ed852e2009-09-05 21:47:34 +0000652 /*
653 Relinquish resources.
654 */
655 annotate_info->text=(char *) NULL;
656 annotate_info=DestroyDrawInfo(annotate_info);
657 for (i=0; textlist[i] != (char *) NULL; i++)
658 textlist[i]=DestroyString(textlist[i]);
659 textlist=(char **) RelinquishMagickMemory(textlist);
660 return(status);
661}
662
663/*
664%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
665% %
666% %
667% %
668% G e t T y p e M e t r i c s %
669% %
670% %
671% %
672%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
673%
674% GetTypeMetrics() returns the following information for the specified font
675% and text:
676%
677% character width
678% character height
679% ascender
680% descender
681% text width
682% text height
683% maximum horizontal advance
684% bounds: x1
685% bounds: y1
686% bounds: x2
687% bounds: y2
688% origin: x
689% origin: y
690% underline position
691% underline thickness
692%
693% The format of the GetTypeMetrics method is:
694%
695% MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info,
696% TypeMetric *metrics)
697%
698% A description of each parameter follows:
699%
700% o image: the image.
701%
702% o draw_info: the draw info.
703%
704% o metrics: Return the font metrics in this structure.
705%
706*/
707MagickExport MagickBooleanType GetTypeMetrics(Image *image,
708 const DrawInfo *draw_info,TypeMetric *metrics)
709{
710 DrawInfo
711 *annotate_info;
712
713 MagickBooleanType
714 status;
715
716 PointInfo
717 offset;
718
719 assert(image != (Image *) NULL);
720 assert(image->signature == MagickSignature);
721 if (image->debug != MagickFalse)
722 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
723 assert(draw_info != (DrawInfo *) NULL);
724 assert(draw_info->text != (char *) NULL);
725 assert(draw_info->signature == MagickSignature);
726 annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
727 annotate_info->render=MagickFalse;
728 (void) ResetMagickMemory(metrics,0,sizeof(*metrics));
729 offset.x=0.0;
730 offset.y=0.0;
731 status=RenderType(image,annotate_info,&offset,metrics);
732 if (image->debug != MagickFalse)
733 (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Metrics: text: %s; "
734 "width: %g; height: %g; ascent: %g; descent: %g; max advance: %g; "
735 "bounds: %g,%g %g,%g; origin: %g,%g; pixels per em: %g,%g; "
736 "underline position: %g; underline thickness: %g",annotate_info->text,
737 metrics->width,metrics->height,metrics->ascent,metrics->descent,
738 metrics->max_advance,metrics->bounds.x1,metrics->bounds.y1,
739 metrics->bounds.x2,metrics->bounds.y2,metrics->origin.x,metrics->origin.y,
740 metrics->pixels_per_em.x,metrics->pixels_per_em.y,
741 metrics->underline_position,metrics->underline_thickness);
742 annotate_info=DestroyDrawInfo(annotate_info);
743 return(status);
744}
745
746/*
747%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
748% %
749% %
750% %
751+ R e n d e r T y p e %
752% %
753% %
754% %
755%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
756%
757% RenderType() renders text on the image. It also returns the bounding box of
758% the text relative to the image.
759%
760% The format of the RenderType method is:
761%
762% MagickBooleanType RenderType(Image *image,DrawInfo *draw_info,
763% const PointInfo *offset,TypeMetric *metrics)
764%
765% A description of each parameter follows:
766%
767% o image: the image.
768%
769% o draw_info: the draw info.
770%
771% o offset: (x,y) location of text relative to image.
772%
773% o metrics: bounding box of text.
774%
775*/
776static MagickBooleanType RenderType(Image *image,const DrawInfo *draw_info,
777 const PointInfo *offset,TypeMetric *metrics)
778{
779 const TypeInfo
780 *type_info;
781
782 DrawInfo
783 *annotate_info;
784
785 MagickBooleanType
786 status;
787
788 type_info=(const TypeInfo *) NULL;
789 if (draw_info->font != (char *) NULL)
790 {
791 if (*draw_info->font == '@')
792 {
793 status=RenderFreetype(image,draw_info,draw_info->encoding,offset,
794 metrics);
795 return(status);
796 }
797 if (*draw_info->font == '-')
798 return(RenderX11(image,draw_info,offset,metrics));
799 if (IsPathAccessible(draw_info->font) != MagickFalse)
800 {
801 status=RenderFreetype(image,draw_info,draw_info->encoding,offset,
802 metrics);
803 return(status);
804 }
805 type_info=GetTypeInfo(draw_info->font,&image->exception);
806 if (type_info == (const TypeInfo *) NULL)
807 (void) ThrowMagickException(&image->exception,GetMagickModule(),
808 TypeWarning,"UnableToReadFont","`%s'",draw_info->font);
809 }
810 if ((type_info == (const TypeInfo *) NULL) &&
811 (draw_info->family != (const char *) NULL))
812 {
813 type_info=GetTypeInfoByFamily(draw_info->family,draw_info->style,
814 draw_info->stretch,draw_info->weight,&image->exception);
815 if (type_info == (const TypeInfo *) NULL)
816 (void) ThrowMagickException(&image->exception,GetMagickModule(),
817 TypeWarning,"UnableToReadFont","`%s'",draw_info->family);
818 }
819 if (type_info == (const TypeInfo *) NULL)
820 type_info=GetTypeInfoByFamily("arial",draw_info->style,
821 draw_info->stretch,draw_info->weight,&image->exception);
822 if (type_info == (const TypeInfo *) NULL)
823 type_info=GetTypeInfoByFamily("helvetica",draw_info->style,
824 draw_info->stretch,draw_info->weight,&image->exception);
825 if (type_info == (const TypeInfo *) NULL)
826 type_info=GetTypeInfoByFamily((const char *) NULL,draw_info->style,
827 draw_info->stretch,draw_info->weight,&image->exception);
828 if (type_info == (const TypeInfo *) NULL)
829 {
830 status=RenderFreetype(image,draw_info,draw_info->encoding,offset,metrics);
831 return(status);
832 }
833 annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
834 annotate_info->face=type_info->face;
835 if (type_info->metrics != (char *) NULL)
836 (void) CloneString(&annotate_info->metrics,type_info->metrics);
837 if (type_info->glyphs != (char *) NULL)
838 (void) CloneString(&annotate_info->font,type_info->glyphs);
839 status=RenderFreetype(image,annotate_info,type_info->encoding,offset,metrics);
840 annotate_info=DestroyDrawInfo(annotate_info);
841 return(status);
842}
843
844/*
845%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
846% %
847% %
848% %
849+ R e n d e r F r e e t y p e %
850% %
851% %
852% %
853%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
854%
855% RenderFreetype() renders text on the image with a Truetype font. It also
856% returns the bounding box of the text relative to the image.
857%
858% The format of the RenderFreetype method is:
859%
860% MagickBooleanType RenderFreetype(Image *image,DrawInfo *draw_info,
861% const char *encoding,const PointInfo *offset,TypeMetric *metrics)
862%
863% A description of each parameter follows:
864%
865% o image: the image.
866%
867% o draw_info: the draw info.
868%
869% o encoding: the font encoding.
870%
871% o offset: (x,y) location of text relative to image.
872%
873% o metrics: bounding box of text.
874%
875*/
876
877#if defined(MAGICKCORE_FREETYPE_DELEGATE)
878static int TraceCubicBezier(FT_Vector *p,FT_Vector *q,FT_Vector *to,
879 DrawInfo *draw_info)
880{
881 AffineMatrix
882 affine;
883
884 char
885 path[MaxTextExtent];
886
887 affine=draw_info->affine;
888 (void) FormatMagickString(path,MaxTextExtent,"C%g,%g %g,%g %g,%g",
889 affine.tx+p->x/64.0,affine.ty-p->y/64.0,affine.tx+q->x/64.0,
890 affine.ty-q->y/64.0,affine.tx+to->x/64.0,affine.ty-to->y/64.0);
891 (void) ConcatenateString(&draw_info->primitive,path);
892 return(0);
893}
894
895static int TraceLineTo(FT_Vector *to,DrawInfo *draw_info)
896{
897 AffineMatrix
898 affine;
899
900 char
901 path[MaxTextExtent];
902
903 affine=draw_info->affine;
904 (void) FormatMagickString(path,MaxTextExtent,"L%g,%g",affine.tx+to->x/64.0,
905 affine.ty-to->y/64.0);
906 (void) ConcatenateString(&draw_info->primitive,path);
907 return(0);
908}
909
910static int TraceMoveTo(FT_Vector *to,DrawInfo *draw_info)
911{
912 AffineMatrix
913 affine;
914
915 char
916 path[MaxTextExtent];
917
918 affine=draw_info->affine;
919 (void) FormatMagickString(path,MaxTextExtent,"M%g,%g",affine.tx+to->x/64.0,
920 affine.ty-to->y/64.0);
921 (void) ConcatenateString(&draw_info->primitive,path);
922 return(0);
923}
924
925static int TraceQuadraticBezier(FT_Vector *control,FT_Vector *to,
926 DrawInfo *draw_info)
927{
928 AffineMatrix
929 affine;
930
931 char
932 path[MaxTextExtent];
933
934 affine=draw_info->affine;
935 (void) FormatMagickString(path,MaxTextExtent,"Q%g,%g %g,%g",
936 affine.tx+control->x/64.0,affine.ty-control->y/64.0,affine.tx+to->x/64.0,
937 affine.ty-to->y/64.0);
938 (void) ConcatenateString(&draw_info->primitive,path);
939 return(0);
940}
941
942static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info,
943 const char *encoding,const PointInfo *offset,TypeMetric *metrics)
944{
945#if !defined(FT_OPEN_PATHNAME)
946#define FT_OPEN_PATHNAME ft_open_pathname
947#endif
948
949 typedef struct _GlyphInfo
950 {
951 FT_UInt
952 id;
953
954 FT_Vector
955 origin;
956
957 FT_Glyph
958 image;
959 } GlyphInfo;
960
961 const char
962 *value;
963
964 DrawInfo
965 *annotate_info;
966
967 FT_BBox
968 bounds;
969
970 FT_BitmapGlyph
971 bitmap;
972
973 FT_Encoding
974 encoding_type;
975
976 FT_Error
977 status;
978
979 FT_Face
980 face;
981
982 FT_Int32
983 flags;
984
985 FT_Library
986 library;
987
988 FT_Matrix
989 affine;
990
991 FT_Open_Args
992 args;
993
994 FT_Vector
995 origin;
996
997 GlyphInfo
998 glyph,
999 last_glyph;
1000
1001 long
1002 code,
1003 y;
1004
1005 PointInfo
1006 point,
1007 resolution;
1008
1009 register char
1010 *p;
1011
1012 static FT_Outline_Funcs
1013 OutlineMethods =
1014 {
1015 (FT_Outline_MoveTo_Func) TraceMoveTo,
1016 (FT_Outline_LineTo_Func) TraceLineTo,
1017 (FT_Outline_ConicTo_Func) TraceQuadraticBezier,
1018 (FT_Outline_CubicTo_Func) TraceCubicBezier,
1019 0, 0
1020 };
1021
1022 /*
1023 Initialize Truetype library.
1024 */
1025 status=FT_Init_FreeType(&library);
1026 if (status != 0)
1027 ThrowBinaryException(TypeError,"UnableToInitializeFreetypeLibrary",
1028 image->filename);
1029 args.flags=FT_OPEN_PATHNAME;
1030 if (draw_info->font == (char *) NULL)
1031 args.pathname=ConstantString("helvetica");
1032 else
1033 if (*draw_info->font != '@')
1034 args.pathname=ConstantString(draw_info->font);
1035 else
1036 args.pathname=ConstantString(draw_info->font+1);
1037 face=(FT_Face) NULL;
1038 status=FT_Open_Face(library,&args,draw_info->face,&face);
1039 args.pathname=DestroyString(args.pathname);
1040 if (status != 0)
1041 {
1042 (void) FT_Done_FreeType(library);
1043 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1044 TypeError,"UnableToReadFont","`%s'",draw_info->font);
1045 return(RenderPostscript(image,draw_info,offset,metrics));
1046 }
1047 if ((draw_info->metrics != (char *) NULL) &&
1048 (IsPathAccessible(draw_info->metrics) != MagickFalse))
1049 (void) FT_Attach_File(face,draw_info->metrics);
1050 encoding_type=ft_encoding_unicode;
1051 status=FT_Select_Charmap(face,encoding_type);
1052 if ((status != 0) && (face->num_charmaps != 0))
1053 status=FT_Set_Charmap(face,face->charmaps[0]);
1054 if (encoding != (const char *) NULL)
1055 {
1056 if (LocaleCompare(encoding,"AdobeCustom") == 0)
1057 encoding_type=ft_encoding_adobe_custom;
1058 if (LocaleCompare(encoding,"AdobeExpert") == 0)
1059 encoding_type=ft_encoding_adobe_expert;
1060 if (LocaleCompare(encoding,"AdobeStandard") == 0)
1061 encoding_type=ft_encoding_adobe_standard;
1062 if (LocaleCompare(encoding,"AppleRoman") == 0)
1063 encoding_type=ft_encoding_apple_roman;
1064 if (LocaleCompare(encoding,"BIG5") == 0)
1065 encoding_type=ft_encoding_big5;
1066 if (LocaleCompare(encoding,"GB2312") == 0)
1067 encoding_type=ft_encoding_gb2312;
1068 if (LocaleCompare(encoding,"Johab") == 0)
1069 encoding_type=ft_encoding_johab;
1070#if defined(ft_encoding_latin_1)
1071 if (LocaleCompare(encoding,"Latin-1") == 0)
1072 encoding_type=ft_encoding_latin_1;
1073#endif
1074 if (LocaleCompare(encoding,"Latin-2") == 0)
1075 encoding_type=ft_encoding_latin_2;
1076 if (LocaleCompare(encoding,"None") == 0)
1077 encoding_type=ft_encoding_none;
1078 if (LocaleCompare(encoding,"SJIScode") == 0)
1079 encoding_type=ft_encoding_sjis;
1080 if (LocaleCompare(encoding,"Symbol") == 0)
1081 encoding_type=ft_encoding_symbol;
1082 if (LocaleCompare(encoding,"Unicode") == 0)
1083 encoding_type=ft_encoding_unicode;
1084 if (LocaleCompare(encoding,"Wansung") == 0)
1085 encoding_type=ft_encoding_wansung;
1086 status=FT_Select_Charmap(face,encoding_type);
1087 if (status != 0)
1088 ThrowBinaryException(TypeError,"UnrecognizedFontEncoding",encoding);
1089 }
1090 /*
1091 Set text size.
1092 */
1093 resolution.x=DefaultResolution;
1094 resolution.y=DefaultResolution;
1095 if (draw_info->density != (char *) NULL)
1096 {
1097 GeometryInfo
1098 geometry_info;
1099
1100 MagickStatusType
1101 flags;
1102
1103 flags=ParseGeometry(draw_info->density,&geometry_info);
1104 resolution.x=geometry_info.rho;
1105 resolution.y=geometry_info.sigma;
1106 if ((flags & SigmaValue) == 0)
1107 resolution.y=resolution.x;
1108 }
1109 status=FT_Set_Char_Size(face,(FT_F26Dot6) (64.0*draw_info->pointsize),
1110 (FT_F26Dot6) (64.0*draw_info->pointsize),(FT_UInt) resolution.x,
1111 (FT_UInt) resolution.y);
1112 metrics->pixels_per_em.x=face->size->metrics.x_ppem;
1113 metrics->pixels_per_em.y=face->size->metrics.y_ppem;
1114 metrics->ascent=(double) face->size->metrics.ascender/64.0;
1115 metrics->descent=(double) face->size->metrics.descender/64.0;
1116 metrics->width=0;
1117 metrics->origin.x=0;
1118 metrics->origin.y=0;
1119 metrics->height=(double) face->size->metrics.height/64.0;
1120 metrics->max_advance=0.0;
1121 if (face->size->metrics.max_advance > MagickEpsilon)
1122 metrics->max_advance=(double) face->size->metrics.max_advance/64.0;
1123 metrics->bounds.x1=0.0;
1124 metrics->bounds.y1=metrics->descent;
1125 metrics->bounds.x2=metrics->ascent+metrics->descent;
1126 metrics->bounds.y2=metrics->ascent+metrics->descent;
1127 metrics->underline_position=face->underline_position/64.0;
1128 metrics->underline_thickness=face->underline_thickness/64.0;
1129 if (*draw_info->text == '\0')
1130 {
1131 (void) FT_Done_Face(face);
1132 (void) FT_Done_FreeType(library);
1133 return(MagickTrue);
1134 }
1135 /*
1136 Compute bounding box.
1137 */
1138 if (image->debug != MagickFalse)
1139 (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Font %s; "
1140 "font-encoding %s; text-encoding %s; pointsize %g",
1141 draw_info->font != (char *) NULL ? draw_info->font : "none",
1142 encoding != (char *) NULL ? encoding : "none",
1143 draw_info->encoding != (char *) NULL ? draw_info->encoding : "none",
1144 draw_info->pointsize);
1145 flags=FT_LOAD_NO_BITMAP;
1146 value=GetImageProperty(image,"type:hinting");
1147 if (LocaleCompare(value,"off") == 0)
1148 flags|=FT_LOAD_NO_HINTING;
1149 glyph.id=0;
1150 glyph.image=NULL;
1151 last_glyph.id=0;
1152 last_glyph.image=NULL;
1153 origin.x=0;
1154 origin.y=0;
1155 affine.xx=65536L;
1156 affine.yx=0L;
1157 affine.xy=0L;
1158 affine.yy=65536L;
1159 if (draw_info->render != MagickFalse)
1160 {
1161 affine.xx=(FT_Fixed) (65536L*draw_info->affine.sx+0.5);
1162 affine.yx=(FT_Fixed) (-65536L*draw_info->affine.rx+0.5);
1163 affine.xy=(FT_Fixed) (-65536L*draw_info->affine.ry+0.5);
1164 affine.yy=(FT_Fixed) (65536L*draw_info->affine.sy+0.5);
1165 }
1166 annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
1167 (void) CloneString(&annotate_info->primitive,"path '");
1168 if (draw_info->render != MagickFalse)
1169 {
1170 if (image->storage_class != DirectClass)
1171 (void) SetImageStorageClass(image,DirectClass);
1172 if (image->matte == MagickFalse)
1173 (void) SetImageAlphaChannel(image,OpaqueAlphaChannel);
1174 }
1175 point.x=0.0;
1176 point.y=0.0;
1177 code=0;
1178 for (p=draw_info->text; GetUTFCode(p) != 0; p+=GetUTFOctets(p))
1179 {
1180 glyph.id=FT_Get_Char_Index(face,GetUTFCode(p));
1181 if (glyph.id == 0)
1182 glyph.id=FT_Get_Char_Index(face,'?');
1183 if ((glyph.id != 0) && (last_glyph.id != 0))
1184 {
1185 if (draw_info->kerning != 0.0)
1186 origin.x+=64.0*draw_info->kerning;
1187 else
1188 if (FT_HAS_KERNING(face))
1189 {
1190 FT_Vector
1191 kerning;
1192
1193 status=FT_Get_Kerning(face,last_glyph.id,glyph.id,
1194 ft_kerning_default,&kerning);
1195 if (status == 0)
1196 origin.x+=kerning.x;
1197 }
1198 }
1199 glyph.origin=origin;
1200 status=FT_Load_Glyph(face,glyph.id,flags);
1201 if (status != 0)
1202 continue;
1203 status=FT_Get_Glyph(face->glyph,&glyph.image);
1204 if (status != 0)
1205 continue;
1206 status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->outline,
1207 &bounds);
1208 if (status != 0)
1209 continue;
1210 if ((p == draw_info->text) || (bounds.xMin < metrics->bounds.x1))
1211 metrics->bounds.x1=bounds.xMin;
1212 if ((p == draw_info->text) || (bounds.yMin < metrics->bounds.y1))
1213 metrics->bounds.y1=bounds.yMin;
1214 if ((p == draw_info->text) || (bounds.xMax > metrics->bounds.x2))
1215 metrics->bounds.x2=bounds.xMax;
1216 if ((p == draw_info->text) || (bounds.yMax > metrics->bounds.y2))
1217 metrics->bounds.y2=bounds.yMax;
1218 if (draw_info->render != MagickFalse)
1219 if ((draw_info->stroke.opacity != TransparentOpacity) ||
1220 (draw_info->stroke_pattern != (Image *) NULL))
1221 {
1222 /*
1223 Trace the glyph.
1224 */
1225 annotate_info->affine.tx=glyph.origin.x/64.0;
1226 annotate_info->affine.ty=glyph.origin.y/64.0;
1227 (void) FT_Outline_Decompose(&((FT_OutlineGlyph) glyph.image)->outline,
1228 &OutlineMethods,annotate_info);
1229 }
1230 FT_Vector_Transform(&glyph.origin,&affine);
1231 (void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin);
1232 status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal,
1233 (FT_Vector *) NULL,MagickTrue);
1234 if (status != 0)
1235 continue;
1236 bitmap=(FT_BitmapGlyph) glyph.image;
1237 point.x=offset->x+bitmap->left;
1238 point.y=offset->y-bitmap->top;
1239 if (draw_info->render != MagickFalse)
1240 {
1241 CacheView
1242 *image_view;
1243
1244 ExceptionInfo
1245 *exception;
1246
1247 MagickBooleanType
1248 status;
1249
1250 /*
1251 Rasterize the glyph.
1252 */
1253 status=MagickTrue;
1254 exception=(&image->exception);
1255 image_view=AcquireCacheView(image);
1256 for (y=0; y < (long) bitmap->bitmap.rows; y++)
1257 {
1258 long
1259 x_offset,
1260 y_offset;
1261
1262 MagickBooleanType
1263 active,
1264 sync;
1265
1266 MagickRealType
1267 fill_opacity;
1268
1269 PixelPacket
1270 fill_color;
1271
1272 register long
1273 x;
1274
1275 register PixelPacket
1276 *__restrict q;
1277
1278 register unsigned char
1279 *p;
1280
1281 if (status == MagickFalse)
1282 continue;
1283 x_offset=(long) (point.x+0.5);
1284 y_offset=(long) (point.y+y+0.5);
1285 if ((y_offset < 0) || (y_offset >= (long) image->rows))
1286 continue;
1287 q=(PixelPacket *) NULL;
1288 if ((x_offset < 0) || (x_offset >= (long) image->columns))
1289 active=MagickFalse;
1290 else
1291 {
1292 q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,
1293 bitmap->bitmap.width,1,exception);
1294 active=q != (PixelPacket *) NULL ? MagickTrue : MagickFalse;
1295 }
1296 p=bitmap->bitmap.buffer+y*bitmap->bitmap.width;
1297 for (x=0; x < (long) bitmap->bitmap.width; x++)
1298 {
1299 x_offset++;
1300 if ((*p == 0) || (x_offset < 0) ||
1301 (x_offset >= (long) image->columns))
1302 {
1303 p++;
1304 q++;
1305 continue;
1306 }
1307 fill_opacity=(MagickRealType) (*p)/(bitmap->bitmap.num_grays-1);
1308 if (draw_info->text_antialias == MagickFalse)
1309 fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0;
1310 if (active == MagickFalse)
1311 q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,1,1,
1312 exception);
1313 if (q == (PixelPacket *) NULL)
1314 {
1315 p++;
1316 q++;
1317 continue;
1318 }
1319 (void) GetFillColor(draw_info,x_offset,y_offset,&fill_color);
1320 fill_opacity=QuantumRange-fill_opacity*(QuantumRange-
1321 fill_color.opacity);
1322 MagickCompositeOver(&fill_color,fill_opacity,q,q->opacity,q);
1323 if (active == MagickFalse)
1324 {
1325 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1326 if (sync == MagickFalse)
1327 status=MagickFalse;
1328 }
1329 p++;
1330 q++;
1331 }
1332 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1333 if (sync == MagickFalse)
1334 status=MagickFalse;
1335 }
1336 image_view=DestroyCacheView(image_view);
1337 }
1338 if ((bitmap->left+bitmap->bitmap.width) > metrics->width)
1339 metrics->width=bitmap->left+bitmap->bitmap.width;
1340 if ((draw_info->interword_spacing != 0.0) &&
1341 (IsUTFSpace(GetUTFCode(p)) != MagickFalse) &&
1342 (IsUTFSpace(code) == MagickFalse))
1343 origin.x+=64.0*draw_info->interword_spacing;
1344 else
1345 origin.x+=face->glyph->advance.x;
1346 metrics->origin.x=origin.x;
1347 metrics->origin.y=origin.y;
1348 if (last_glyph.id != 0)
1349 FT_Done_Glyph(last_glyph.image);
1350 last_glyph=glyph;
1351 code=GetUTFCode(p);
1352 }
1353 if (last_glyph.id != 0)
1354 FT_Done_Glyph(last_glyph.image);
1355 if ((draw_info->stroke.opacity != TransparentOpacity) ||
1356 (draw_info->stroke_pattern != (Image *) NULL))
1357 {
1358 if (draw_info->render != MagickFalse)
1359 {
1360 /*
1361 Draw text stroke.
1362 */
1363 annotate_info->linejoin=RoundJoin;
1364 annotate_info->affine.tx=offset->x;
1365 annotate_info->affine.ty=offset->y;
1366 (void) ConcatenateString(&annotate_info->primitive,"'");
1367 (void) DrawImage(image,annotate_info);
1368 }
1369 }
1370 /*
1371 Determine font metrics.
1372 */
1373 glyph.id=FT_Get_Char_Index(face,'_');
1374 glyph.origin=origin;
1375 status=FT_Load_Glyph(face,glyph.id,flags);
1376 if (status == 0)
1377 {
1378 status=FT_Get_Glyph(face->glyph,&glyph.image);
1379 if (status == 0)
1380 {
1381 status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->
1382 outline,&bounds);
1383 if (status == 0)
1384 {
1385 FT_Vector_Transform(&glyph.origin,&affine);
1386 (void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin);
1387 status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal,
1388 (FT_Vector *) NULL,MagickTrue);
1389 bitmap=(FT_BitmapGlyph) glyph.image;
1390 if (bitmap->left > metrics->width)
1391 metrics->width=bitmap->left;
1392 }
1393 }
1394 if (glyph.id != 0)
1395 FT_Done_Glyph(glyph.image);
1396 }
1397 metrics->width-=metrics->bounds.x1/64.0;
1398 metrics->bounds.x1/=64.0;
1399 metrics->bounds.y1/=64.0;
1400 metrics->bounds.x2/=64.0;
1401 metrics->bounds.y2/=64.0;
1402 metrics->origin.x/=64.0;
1403 metrics->origin.y/=64.0;
1404 /*
1405 Relinquish resources.
1406 */
1407 annotate_info=DestroyDrawInfo(annotate_info);
1408 (void) FT_Done_Face(face);
1409 (void) FT_Done_FreeType(library);
1410 return(MagickTrue);
1411}
1412#else
1413static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info,
1414 const char *magick_unused(encoding),const PointInfo *offset,
1415 TypeMetric *metrics)
1416{
1417 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1418 MissingDelegateWarning,"DelegateLibrarySupportNotBuiltIn","`%s' (Freetype)",
1419 draw_info->font);
1420 return(RenderPostscript(image,draw_info,offset,metrics));
1421}
1422#endif
1423
1424/*
1425%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1426% %
1427% %
1428% %
1429+ R e n d e r P o s t s c r i p t %
1430% %
1431% %
1432% %
1433%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1434%
1435% RenderPostscript() renders text on the image with a Postscript font. It
1436% also returns the bounding box of the text relative to the image.
1437%
1438% The format of the RenderPostscript method is:
1439%
1440% MagickBooleanType RenderPostscript(Image *image,DrawInfo *draw_info,
1441% const PointInfo *offset,TypeMetric *metrics)
1442%
1443% A description of each parameter follows:
1444%
1445% o image: the image.
1446%
1447% o draw_info: the draw info.
1448%
1449% o offset: (x,y) location of text relative to image.
1450%
1451% o metrics: bounding box of text.
1452%
1453*/
1454
1455static inline size_t MagickMin(const size_t x,const size_t y)
1456{
1457 if (x < y)
1458 return(x);
1459 return(y);
1460}
1461
1462static char *EscapeParenthesis(const char *text)
1463{
1464 char
1465 *buffer;
1466
1467 register char
1468 *p;
1469
1470 register long
1471 i;
1472
1473 size_t
1474 escapes;
1475
1476 escapes=0;
1477 buffer=AcquireString(text);
1478 p=buffer;
1479 for (i=0; i < (long) MagickMin(strlen(text),MaxTextExtent-escapes-1); i++)
1480 {
1481 if ((text[i] == '(') || (text[i] == ')'))
1482 {
1483 *p++='\\';
1484 escapes++;
1485 }
1486 *p++=text[i];
1487 }
1488 *p='\0';
1489 return(buffer);
1490}
1491
1492static MagickBooleanType RenderPostscript(Image *image,
1493 const DrawInfo *draw_info,const PointInfo *offset,TypeMetric *metrics)
1494{
1495 char
1496 filename[MaxTextExtent],
1497 geometry[MaxTextExtent],
1498 *text;
1499
1500 FILE
1501 *file;
1502
1503 Image
1504 *annotate_image;
1505
1506 ImageInfo
1507 *annotate_info;
1508
1509 int
1510 unique_file;
1511
1512 long
1513 y;
1514
1515 MagickBooleanType
1516 identity;
1517
1518 PointInfo
1519 extent,
1520 point,
1521 resolution;
1522
1523 register long
1524 i;
1525
1526 /*
1527 Render label with a Postscript font.
1528 */
1529 if (image->debug != MagickFalse)
1530 (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),
1531 "Font %s; pointsize %g",draw_info->font != (char *) NULL ?
1532 draw_info->font : "none",draw_info->pointsize);
1533 file=(FILE *) NULL;
1534 unique_file=AcquireUniqueFileResource(filename);
1535 if (unique_file != -1)
1536 file=fdopen(unique_file,"wb");
1537 if ((unique_file == -1) || (file == (FILE *) NULL))
1538 {
1539 ThrowFileException(&image->exception,FileOpenError,"UnableToOpenFile",
1540 filename);
1541 return(MagickFalse);
1542 }
1543 (void) fprintf(file,"%%!PS-Adobe-3.0\n");
1544 (void) fprintf(file,"/ReencodeType\n");
1545 (void) fprintf(file,"{\n");
1546 (void) fprintf(file," findfont dup length\n");
1547 (void) fprintf(file,
1548 " dict begin { 1 index /FID ne {def} {pop pop} ifelse } forall\n");
1549 (void) fprintf(file,
1550 " /Encoding ISOLatin1Encoding def currentdict end definefont pop\n");
1551 (void) fprintf(file,"} bind def\n");
1552 /*
1553 Sample to compute bounding box.
1554 */
1555 identity=(draw_info->affine.sx == draw_info->affine.sy) &&
1556 (draw_info->affine.rx == 0.0) && (draw_info->affine.ry == 0.0) ?
1557 MagickTrue : MagickFalse;
1558 extent.x=0.0;
1559 extent.y=0.0;
1560 for (i=0; i <= (long) (strlen(draw_info->text)+2); i++)
1561 {
1562 point.x=fabs(draw_info->affine.sx*i*draw_info->pointsize+
1563 draw_info->affine.ry*2.0*draw_info->pointsize);
1564 point.y=fabs(draw_info->affine.rx*i*draw_info->pointsize+
1565 draw_info->affine.sy*2.0*draw_info->pointsize);
1566 if (point.x > extent.x)
1567 extent.x=point.x;
1568 if (point.y > extent.y)
1569 extent.y=point.y;
1570 }
1571 (void) fprintf(file,"%g %g moveto\n",identity != MagickFalse ? 0.0 :
1572 extent.x/2.0,extent.y/2.0);
1573 (void) fprintf(file,"%g %g scale\n",draw_info->pointsize,
1574 draw_info->pointsize);
1575 if ((draw_info->font == (char *) NULL) || (*draw_info->font == '\0') ||
1576 (strchr(draw_info->font,'/') != (char *) NULL))
1577 (void) fprintf(file,
1578 "/Times-Roman-ISO dup /Times-Roman ReencodeType findfont setfont\n");
1579 else
1580 (void) fprintf(file,"/%s-ISO dup /%s ReencodeType findfont setfont\n",
1581 draw_info->font,draw_info->font);
1582 (void) fprintf(file,"[%g %g %g %g 0 0] concat\n",draw_info->affine.sx,
1583 -draw_info->affine.rx,-draw_info->affine.ry,draw_info->affine.sy);
1584 text=EscapeParenthesis(draw_info->text);
1585 if (identity == MagickFalse)
1586 (void) fprintf(file,"(%s) stringwidth pop -0.5 mul -0.5 rmoveto\n",text);
1587 (void) fprintf(file,"(%s) show\n",text);
1588 text=DestroyString(text);
1589 (void) fprintf(file,"showpage\n");
1590 (void) fclose(file);
1591 (void) FormatMagickString(geometry,MaxTextExtent,"%ldx%ld+0+0!",(long)
1592 (extent.x+0.5),(long) (extent.y+0.5));
1593 annotate_info=AcquireImageInfo();
1594 (void) FormatMagickString(annotate_info->filename,MaxTextExtent,"ps:%s",
1595 filename);
1596 (void) CloneString(&annotate_info->page,geometry);
1597 if (draw_info->density != (char *) NULL)
1598 (void) CloneString(&annotate_info->density,draw_info->density);
1599 annotate_info->antialias=draw_info->text_antialias;
1600 annotate_image=ReadImage(annotate_info,&image->exception);
1601 CatchException(&image->exception);
1602 annotate_info=DestroyImageInfo(annotate_info);
1603 (void) RelinquishUniqueFileResource(filename);
1604 if (annotate_image == (Image *) NULL)
1605 return(MagickFalse);
1606 resolution.x=DefaultResolution;
1607 resolution.y=DefaultResolution;
1608 if (draw_info->density != (char *) NULL)
1609 {
1610 GeometryInfo
1611 geometry_info;
1612
1613 MagickStatusType
1614 flags;
1615
1616 flags=ParseGeometry(draw_info->density,&geometry_info);
1617 resolution.x=geometry_info.rho;
1618 resolution.y=geometry_info.sigma;
1619 if ((flags & SigmaValue) == 0)
1620 resolution.y=resolution.x;
1621 }
1622 if (identity == MagickFalse)
1623 (void) TransformImage(&annotate_image,"0x0",(char *) NULL);
1624 else
1625 {
1626 RectangleInfo
1627 crop_info;
1628
1629 crop_info=GetImageBoundingBox(annotate_image,&annotate_image->exception);
1630 crop_info.height=(unsigned long) ((resolution.y/DefaultResolution)*
1631 ExpandAffine(&draw_info->affine)*draw_info->pointsize+0.5);
1632 crop_info.y=(long) ((resolution.y/DefaultResolution)*extent.y/8.0+0.5);
1633 (void) FormatMagickString(geometry,MaxTextExtent,"%lux%lu%+ld%+ld",
1634 crop_info.width,crop_info.height,crop_info.x,crop_info.y);
1635 (void) TransformImage(&annotate_image,geometry,(char *) NULL);
1636 }
1637 metrics->pixels_per_em.x=(resolution.y/DefaultResolution)*
1638 ExpandAffine(&draw_info->affine)*draw_info->pointsize;
1639 metrics->pixels_per_em.y=metrics->pixels_per_em.x;
1640 metrics->ascent=metrics->pixels_per_em.x;
1641 metrics->descent=metrics->pixels_per_em.y/-5.0;
1642 metrics->width=(double) annotate_image->columns/
1643 ExpandAffine(&draw_info->affine);
1644 metrics->height=1.152*metrics->pixels_per_em.x;
1645 metrics->max_advance=metrics->pixels_per_em.x;
1646 metrics->bounds.x1=0.0;
1647 metrics->bounds.y1=metrics->descent;
1648 metrics->bounds.x2=metrics->ascent+metrics->descent;
1649 metrics->bounds.y2=metrics->ascent+metrics->descent;
1650 metrics->underline_position=(-2.0);
1651 metrics->underline_thickness=1.0;
1652 if (draw_info->render == MagickFalse)
1653 {
1654 annotate_image=DestroyImage(annotate_image);
1655 return(MagickTrue);
1656 }
1657 if (draw_info->fill.opacity != TransparentOpacity)
1658 {
1659 ExceptionInfo
1660 *exception;
1661
1662 MagickBooleanType
1663 sync;
1664
1665 PixelPacket
1666 fill_color;
1667
1668 CacheView
1669 *annotate_view;
1670
1671 /*
1672 Render fill color.
1673 */
1674 if (image->matte == MagickFalse)
1675 (void) SetImageAlphaChannel(image,OpaqueAlphaChannel);
1676 if (annotate_image->matte == MagickFalse)
1677 (void) SetImageAlphaChannel(annotate_image,OpaqueAlphaChannel);
1678 fill_color=draw_info->fill;
1679 exception=(&image->exception);
1680 annotate_view=AcquireCacheView(annotate_image);
1681 for (y=0; y < (long) annotate_image->rows; y++)
1682 {
1683 register long
1684 x;
1685
1686 register PixelPacket
1687 *__restrict q;
1688
1689 q=GetCacheViewAuthenticPixels(annotate_view,0,y,annotate_image->columns,
1690 1,exception);
1691 if (q == (PixelPacket *) NULL)
1692 break;
1693 for (x=0; x < (long) annotate_image->columns; x++)
1694 {
1695 (void) GetFillColor(draw_info,x,y,&fill_color);
1696 q->opacity=RoundToQuantum(QuantumRange-(((QuantumRange-
1697 (MagickRealType) PixelIntensityToQuantum(q))*(QuantumRange-
1698 fill_color.opacity))/QuantumRange));
1699 q->red=fill_color.red;
1700 q->green=fill_color.green;
1701 q->blue=fill_color.blue;
1702 q++;
1703 }
1704 sync=SyncCacheViewAuthenticPixels(annotate_view,exception);
1705 if (sync == MagickFalse)
1706 break;
1707 }
1708 annotate_view=DestroyCacheView(annotate_view);
1709 (void) CompositeImage(image,OverCompositeOp,annotate_image,
1710 (long) (offset->x+0.5),(long) (offset->y-(metrics->ascent+
1711 metrics->descent)+0.5));
1712 }
1713 annotate_image=DestroyImage(annotate_image);
1714 return(MagickTrue);
1715}
1716
1717/*
1718%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1719% %
1720% %
1721% %
1722+ R e n d e r X 1 1 %
1723% %
1724% %
1725% %
1726%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1727%
1728% RenderX11() renders text on the image with an X11 font. It also returns the
1729% bounding box of the text relative to the image.
1730%
1731% The format of the RenderX11 method is:
1732%
1733% MagickBooleanType RenderX11(Image *image,DrawInfo *draw_info,
1734% const PointInfo *offset,TypeMetric *metrics)
1735%
1736% A description of each parameter follows:
1737%
1738% o image: the image.
1739%
1740% o draw_info: the draw info.
1741%
1742% o offset: (x,y) location of text relative to image.
1743%
1744% o metrics: bounding box of text.
1745%
1746*/
1747#if defined(MAGICKCORE_X11_DELEGATE)
1748static MagickBooleanType RenderX11(Image *image,const DrawInfo *draw_info,
1749 const PointInfo *offset,TypeMetric *metrics)
1750{
1751 MagickBooleanType
1752 status;
1753
1754 static DrawInfo
1755 cache_info;
1756
1757 static Display
1758 *display = (Display *) NULL;
1759
1760 static XAnnotateInfo
1761 annotate_info;
1762
1763 static XFontStruct
1764 *font_info;
1765
1766 static XPixelInfo
1767 pixel;
1768
1769 static XResourceInfo
1770 resource_info;
1771
1772 static XrmDatabase
1773 resource_database;
1774
1775 static XStandardColormap
1776 *map_info;
1777
1778 static XVisualInfo
1779 *visual_info;
1780
1781 unsigned long
1782 height,
1783 width;
1784
1785 if (display == (Display *) NULL)
1786 {
1787 ImageInfo
1788 *image_info;
1789
1790 /*
1791 Open X server connection.
1792 */
1793 display=XOpenDisplay(draw_info->server_name);
1794 if (display == (Display *) NULL)
1795 {
1796 ThrowXWindowException(XServerError,"UnableToOpenXServer",
1797 draw_info->server_name);
1798 return(MagickFalse);
1799 }
1800 /*
1801 Get user defaults from X resource database.
1802 */
1803 (void) XSetErrorHandler(XError);
1804 image_info=AcquireImageInfo();
1805 resource_database=XGetResourceDatabase(display,GetClientName());
1806 XGetResourceInfo(image_info,resource_database,GetClientName(),
1807 &resource_info);
1808 resource_info.close_server=MagickFalse;
1809 resource_info.colormap=PrivateColormap;
1810 resource_info.font=AcquireString(draw_info->font);
1811 resource_info.background_color=AcquireString("#ffffffffffff");
1812 resource_info.foreground_color=AcquireString("#000000000000");
1813 map_info=XAllocStandardColormap();
1814 if (map_info == (XStandardColormap *) NULL)
1815 {
1816 ThrowXWindowException(ResourceLimitError,"MemoryAllocationFailed",
1817 image->filename);
1818 return(MagickFalse);
1819 }
1820 /*
1821 Initialize visual info.
1822 */
1823 visual_info=XBestVisualInfo(display,map_info,&resource_info);
1824 if (visual_info == (XVisualInfo *) NULL)
1825 {
1826 ThrowXWindowException(XServerError,"UnableToGetVisual",
1827 image->filename);
1828 return(MagickFalse);
1829 }
1830 map_info->colormap=(Colormap) NULL;
1831 pixel.pixels=(unsigned long *) NULL;
1832 /*
1833 Initialize Standard Colormap info.
1834 */
1835 XGetMapInfo(visual_info,XDefaultColormap(display,visual_info->screen),
1836 map_info);
1837 XGetPixelPacket(display,visual_info,map_info,&resource_info,
1838 (Image *) NULL,&pixel);
1839 pixel.annotate_context=XDefaultGC(display,visual_info->screen);
1840 /*
1841 Initialize font info.
1842 */
1843 font_info=XBestFont(display,&resource_info,MagickFalse);
1844 if (font_info == (XFontStruct *) NULL)
1845 {
1846 ThrowXWindowException(XServerError,"UnableToLoadFont",
1847 draw_info->font);
1848 return(MagickFalse);
1849 }
1850 if ((map_info == (XStandardColormap *) NULL) ||
1851 (visual_info == (XVisualInfo *) NULL) ||
1852 (font_info == (XFontStruct *) NULL))
1853 {
1854 XFreeResources(display,visual_info,map_info,&pixel,font_info,
1855 &resource_info,(XWindowInfo *) NULL);
1856 ThrowXWindowException(XServerError,"UnableToLoadFont",
1857 image->filename);
1858 return(MagickFalse);
1859 }
1860 cache_info=(*draw_info);
1861 }
1862 /*
1863 Initialize annotate info.
1864 */
1865 XGetAnnotateInfo(&annotate_info);
1866 annotate_info.stencil=ForegroundStencil;
1867 if (cache_info.font != draw_info->font)
1868 {
1869 /*
1870 Type name has changed.
1871 */
1872 (void) XFreeFont(display,font_info);
1873 (void) CloneString(&resource_info.font,draw_info->font);
1874 font_info=XBestFont(display,&resource_info,MagickFalse);
1875 if (font_info == (XFontStruct *) NULL)
1876 {
1877 ThrowXWindowException(XServerError,"UnableToLoadFont",
1878 draw_info->font);
1879 return(MagickFalse);
1880 }
1881 }
1882 if (image->debug != MagickFalse)
1883 (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),
1884 "Font %s; pointsize %g",draw_info->font != (char *) NULL ?
1885 draw_info->font : "none",draw_info->pointsize);
1886 cache_info=(*draw_info);
1887 annotate_info.font_info=font_info;
1888 annotate_info.text=(char *) draw_info->text;
1889 annotate_info.width=(unsigned int) XTextWidth(font_info,draw_info->text,
1890 (int) strlen(draw_info->text));
1891 annotate_info.height=(unsigned int) font_info->ascent+font_info->descent;
1892 metrics->pixels_per_em.x=(double) font_info->max_bounds.width;
1893 metrics->pixels_per_em.y=(double) font_info->ascent+font_info->descent;
1894 metrics->ascent=(double) font_info->ascent+4;
1895 metrics->descent=(double) (-font_info->descent);
1896 metrics->width=annotate_info.width/ExpandAffine(&draw_info->affine);
1897 metrics->height=font_info->ascent+font_info->descent;
1898 metrics->max_advance=(double) font_info->max_bounds.width;
1899 metrics->bounds.x1=0.0;
1900 metrics->bounds.y1=metrics->descent;
1901 metrics->bounds.x2=metrics->ascent+metrics->descent;
1902 metrics->bounds.y2=metrics->ascent+metrics->descent;
1903 metrics->underline_position=(-2.0);
1904 metrics->underline_thickness=1.0;
1905 if (draw_info->render == MagickFalse)
1906 return(MagickTrue);
1907 if (draw_info->fill.opacity == TransparentOpacity)
1908 return(MagickTrue);
1909 /*
1910 Render fill color.
1911 */
1912 width=annotate_info.width;
1913 height=annotate_info.height;
1914 if ((draw_info->affine.rx != 0.0) || (draw_info->affine.ry != 0.0))
1915 {
1916 if (((draw_info->affine.sx-draw_info->affine.sy) == 0.0) &&
1917 ((draw_info->affine.rx+draw_info->affine.ry) == 0.0))
1918 annotate_info.degrees=(180.0/MagickPI)*
1919 atan2(draw_info->affine.rx,draw_info->affine.sx);
1920 }
1921 (void) FormatMagickString(annotate_info.geometry,MaxTextExtent,
1922 "%lux%lu+%ld+%ld",width,height,(long) (offset->x+0.5),
cristy58460392009-09-09 01:52:06 +00001923 (long) (offset->y-metrics->ascent-metrics->descent+
1924 draw_info->interline_spacing+0.5));
cristy3ed852e2009-09-05 21:47:34 +00001925 pixel.pen_color.red=ScaleQuantumToShort(draw_info->fill.red);
1926 pixel.pen_color.green=ScaleQuantumToShort(draw_info->fill.green);
1927 pixel.pen_color.blue=ScaleQuantumToShort(draw_info->fill.blue);
1928 status=XAnnotateImage(display,&pixel,&annotate_info,image);
1929 if (status == 0)
1930 {
1931 ThrowXWindowException(ResourceLimitError,"MemoryAllocationFailed",
1932 image->filename);
1933 return(MagickFalse);
1934 }
1935 return(MagickTrue);
1936}
1937#else
1938static MagickBooleanType RenderX11(Image *image,const DrawInfo *draw_info,
1939 const PointInfo *offset,TypeMetric *metrics)
1940{
1941 (void) draw_info;
1942 (void) offset;
1943 (void) metrics;
1944 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1945 MissingDelegateError,"DelegateLibrarySupportNotBuiltIn","`%s' (X11)",
1946 image->filename);
1947 return(MagickFalse);
1948}
1949#endif