| Guido van Rossum | 74b3f8a | 1993-10-28 09:53:13 +0000 | [diff] [blame] | 1 | # Fill-out form window |
| 2 | |
| 3 | import stdwin |
| 4 | from stdwinevents import * |
| 5 | |
| 6 | |
| 7 | class Form: |
| 8 | |
| 9 | def __init__(self, title): |
| 10 | self.title = title |
| 11 | self.window = None |
| 12 | self.fields = {} |
| 13 | self.fieldnames = [] |
| 14 | self.formwidth = self.formheight = 0 |
| 15 | self.focusname = None |
| 16 | self.tefocus = None |
| 17 | |
| 18 | def define_field(self, name, label, lines, chars): |
| 19 | self.fieldnames.append(name) |
| 20 | lh = stdwin.lineheight() |
| 21 | cw = stdwin.textwidth('m') |
| 22 | left = 20*cw |
| 23 | top = self.formheight + 4 |
| 24 | right = left + chars*cw |
| 25 | bottom = top + lines*lh |
| 26 | te = None |
| 27 | self.fields[name] = (label, left, top, right, bottom, te) |
| 28 | self.formheight = bottom + 2 |
| 29 | self.formwidth = max(self.formwidth, right + 4) |
| 30 | |
| 31 | def open(self): |
| 32 | if self.window: return |
| 33 | self.formwidth = max(100, self.formwidth) |
| 34 | self.formheight = max(50, self.formheight) |
| 35 | stdwin.setdefwinsize(self.formwidth, self.formheight) |
| 36 | stdwin.setdefscrollbars(0, 0) |
| 37 | self.window = stdwin.open(self.title) |
| 38 | self.window.setdocsize(self.formwidth, self.formheight) |
| 39 | for name in self.fieldnames: |
| 40 | label, left, top, right, bottom, te = \ |
| 41 | self.fields[name] |
| 42 | rect = (left, top), (right, bottom) |
| 43 | te = self.window.textcreate(rect) |
| 44 | te.setactive(0) |
| 45 | te.setview(rect) |
| 46 | self.fields[name] = \ |
| 47 | label, left, top, right, bottom, te |
| 48 | if self.fieldnames: |
| 49 | self.setfocus(self.fieldnames[0]) |
| 50 | |
| 51 | def setfocus(self, name): |
| 52 | if name <> self.focusname and self.tefocus: |
| 53 | self.tefocus.setactive(0) |
| 54 | self.focusname = name |
| 55 | if self.focusname: |
| 56 | self.tefocus = self.fields[self.focusname][-1] |
| 57 | self.tefocus.setactive(1) |
| 58 | else: |
| 59 | self.tefocus = None |
| 60 | |
| 61 | def dispatch(self, type, detail): |
| 62 | event = type, self.window, detail |
| 63 | if type == WE_NULL: |
| 64 | pass |
| 65 | elif type == WE_DRAW: |
| 66 | self.draw(detail) |
| 67 | elif type == WE_MOUSE_DOWN: |
| 68 | x, y = detail[0] |
| 69 | for name in self.fieldnames: |
| 70 | label, left, top, right, bottom, te = \ |
| 71 | self.fields[name] |
| 72 | if left <= x < right and \ |
| 73 | top <= y < bottom: |
| 74 | self.setfocus(name) |
| 75 | break |
| 76 | else: |
| 77 | stdwin.fleep() |
| 78 | return |
| 79 | if self.tefocus: |
| 80 | (left, top), (right, bottom) = \ |
| 81 | self.tefocus.getrect() |
| 82 | if x < left: x = left |
| 83 | if x >= right: x = right-1 |
| 84 | if y < top: y = top |
| 85 | if y >= bottom: |
| 86 | y = bottom-1 |
| 87 | x = right-1 |
| 88 | event = type, self.window, ((x,y),)+detail[1:] |
| 89 | if not self.tefocus.event(event): |
| 90 | stdwin.fleep() |
| 91 | elif type in (WE_MOUSE_MOVE, WE_MOUSE_UP, WE_CHAR): |
| 92 | if not self.tefocus or not self.tefocus.event(event): |
| 93 | stdwin.fleep() |
| 94 | elif type == WE_MOUSE_UP: |
| 95 | button = detail[2] |
| 96 | if button == 2: |
| 97 | self.paste_selection() |
| 98 | else: |
| 99 | self.make_selection() |
| 100 | elif type == WE_COMMAND: |
| 101 | if detail in (WC_BACKSPACE, WC_UP, WC_DOWN, |
| 102 | WC_LEFT, WC_RIGHT): |
| 103 | if not self.tefocus or \ |
| 104 | not self.tefocus.event(event): |
| 105 | stdwin.fleep() |
| 106 | elif detail == WC_RETURN: |
| 107 | print '*** Submit query' |
| 108 | elif detail == WC_TAB: |
| 109 | if not self.fields: |
| 110 | stdwin.fleep() |
| 111 | return |
| 112 | if not self.focusname: |
| 113 | i = 0 |
| 114 | else: |
| 115 | i = self.fieldnames.index( |
| 116 | self.focusname) |
| 117 | i = (i+1) % len(self.fieldnames) |
| 118 | self.setfocus(self.fieldnames[i]) |
| 119 | self.tefocus.setfocus(0, 0x7fff) |
| 120 | self.make_selection() |
| 121 | elif type in (WE_ACTIVATE, WE_DEACTIVATE): |
| 122 | pass |
| 123 | elif type == WE_LOST_SEL: |
| 124 | if self.tefocus: |
| 125 | a, b = self.tefocus.getfocus() |
| 126 | self.tefocus.setfocus(a, a) |
| 127 | else: |
| 128 | print 'Form.dispatch(%d, %s)' % (type, `detail`) |
| 129 | |
| 130 | def draw(self, detail): |
| 131 | d = self.window.begindrawing() |
| 132 | d.cliprect(detail) |
| 133 | d.erase(detail) |
| 134 | self.drawform(d, detail) |
| 135 | d.noclip() |
| 136 | d.close() |
| 137 | # Stupid textedit objects can't draw with open draw object... |
| 138 | self.drawtextedit(detail) |
| 139 | |
| 140 | def drawform(self, d, detail): |
| 141 | for name in self.fieldnames: |
| 142 | label, left, top, right, bottom, te = self.fields[name] |
| 143 | d.text((0, top), label) |
| 144 | d.box((left-3, top-2), (right+4, bottom+2)) |
| 145 | |
| 146 | def drawtextedit(self, detail): |
| 147 | for name in self.fieldnames: |
| 148 | label, left, top, right, bottom, te = self.fields[name] |
| 149 | te.draw(detail) |
| 150 | |
| 151 | def make_selection(self): |
| 152 | s = self.tefocus.getfocustext() |
| 153 | if not s: |
| 154 | return |
| 155 | stdwin.rotatecutbuffers(1) |
| 156 | stdwin.setcutbuffer(0, s) |
| 157 | if not self.window.setselection(WS_PRIMARY, s): |
| 158 | stdwin.fleep() |
| 159 | |
| 160 | def paste_selection(self): |
| 161 | if not self.tefocus: |
| 162 | stdwin.fleep() |
| 163 | return |
| 164 | s = stdwin.getselection(WS_PRIMARY) |
| 165 | if not s: |
| 166 | s = stdwin.getcutbuffer(0) |
| 167 | if not s: |
| 168 | stdwin.fleep() |
| 169 | return |
| 170 | self.tefocus.replace(s) |