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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: constrnt.cpp | |
3 | // Purpose: OGL Constraint classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 12/07/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "constrnt.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
20 | #pragma hdrstop | |
21 | #endif | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include <wx/wx.h> | |
25 | #endif | |
26 | ||
27 | #if wxUSE_PROLOGIO | |
28 | #include <wx/deprecated/wxexpr.h> | |
29 | #endif | |
30 | ||
31 | #include "wx/ogl/ogl.h" | |
32 | ||
33 | ||
34 | wxList *wxOGLConstraintTypes = NULL; | |
35 | ||
36 | /* | |
37 | * Constraint type | |
38 | * | |
39 | */ | |
40 | ||
41 | IMPLEMENT_DYNAMIC_CLASS(wxOGLConstraintType, wxObject) | |
42 | ||
43 | wxOGLConstraintType::wxOGLConstraintType(int theType, const wxString& theName, const wxString& thePhrase) | |
44 | { | |
45 | m_type = theType; | |
46 | m_name = theName; | |
47 | m_phrase = thePhrase; | |
48 | } | |
49 | ||
50 | wxOGLConstraintType::~wxOGLConstraintType() | |
51 | { | |
52 | } | |
53 | ||
54 | void OGLInitializeConstraintTypes() | |
55 | { | |
56 | if (!wxOGLConstraintTypes) | |
57 | return; | |
58 | ||
59 | wxOGLConstraintTypes = new wxList(wxKEY_INTEGER); | |
60 | ||
61 | wxOGLConstraintTypes->Append(gyCONSTRAINT_CENTRED_VERTICALLY, | |
62 | new wxOGLConstraintType(gyCONSTRAINT_CENTRED_VERTICALLY, wxT("Centre vertically"), wxT("centred vertically w.r.t."))); | |
63 | ||
64 | wxOGLConstraintTypes->Append(gyCONSTRAINT_CENTRED_HORIZONTALLY, | |
65 | new wxOGLConstraintType(gyCONSTRAINT_CENTRED_HORIZONTALLY, wxT("Centre horizontally"), wxT("centred horizontally w.r.t."))); | |
66 | ||
67 | wxOGLConstraintTypes->Append(gyCONSTRAINT_CENTRED_BOTH, | |
68 | new wxOGLConstraintType(gyCONSTRAINT_CENTRED_BOTH, wxT("Centre"), wxT("centred w.r.t."))); | |
69 | ||
70 | wxOGLConstraintTypes->Append(gyCONSTRAINT_LEFT_OF, | |
71 | new wxOGLConstraintType(gyCONSTRAINT_LEFT_OF, wxT("Left of"), wxT("left of"))); | |
72 | ||
73 | wxOGLConstraintTypes->Append(gyCONSTRAINT_RIGHT_OF, | |
74 | new wxOGLConstraintType(gyCONSTRAINT_RIGHT_OF, wxT("Right of"), wxT("right of"))); | |
75 | ||
76 | wxOGLConstraintTypes->Append(gyCONSTRAINT_ABOVE, | |
77 | new wxOGLConstraintType(gyCONSTRAINT_ABOVE, wxT("Above"), wxT("above"))); | |
78 | ||
79 | wxOGLConstraintTypes->Append(gyCONSTRAINT_BELOW, | |
80 | new wxOGLConstraintType(gyCONSTRAINT_BELOW, wxT("Below"), wxT("below"))); | |
81 | ||
82 | // Alignment | |
83 | wxOGLConstraintTypes->Append(gyCONSTRAINT_ALIGNED_TOP, | |
84 | new wxOGLConstraintType(gyCONSTRAINT_ALIGNED_TOP, wxT("Top-aligned"), wxT("aligned to the top of"))); | |
85 | ||
86 | wxOGLConstraintTypes->Append(gyCONSTRAINT_ALIGNED_BOTTOM, | |
87 | new wxOGLConstraintType(gyCONSTRAINT_ALIGNED_BOTTOM, wxT("Bottom-aligned"), wxT("aligned to the bottom of"))); | |
88 | ||
89 | wxOGLConstraintTypes->Append(gyCONSTRAINT_ALIGNED_LEFT, | |
90 | new wxOGLConstraintType(gyCONSTRAINT_ALIGNED_LEFT, wxT("Left-aligned"), wxT("aligned to the left of"))); | |
91 | ||
92 | wxOGLConstraintTypes->Append(gyCONSTRAINT_ALIGNED_RIGHT, | |
93 | new wxOGLConstraintType(gyCONSTRAINT_ALIGNED_RIGHT, wxT("Right-aligned"), wxT("aligned to the right of"))); | |
94 | ||
95 | // Mid-alignment | |
96 | wxOGLConstraintTypes->Append(gyCONSTRAINT_MIDALIGNED_TOP, | |
97 | new wxOGLConstraintType(gyCONSTRAINT_MIDALIGNED_TOP, wxT("Top-midaligned"), wxT("centred on the top of"))); | |
98 | ||
99 | wxOGLConstraintTypes->Append(gyCONSTRAINT_MIDALIGNED_BOTTOM, | |
100 | new wxOGLConstraintType(gyCONSTRAINT_MIDALIGNED_BOTTOM, wxT("Bottom-midaligned"), wxT("centred on the bottom of"))); | |
101 | ||
102 | wxOGLConstraintTypes->Append(gyCONSTRAINT_MIDALIGNED_LEFT, | |
103 | new wxOGLConstraintType(gyCONSTRAINT_MIDALIGNED_LEFT, wxT("Left-midaligned"), wxT("centred on the left of"))); | |
104 | ||
105 | wxOGLConstraintTypes->Append(gyCONSTRAINT_MIDALIGNED_RIGHT, | |
106 | new wxOGLConstraintType(gyCONSTRAINT_MIDALIGNED_RIGHT, wxT("Right-midaligned"), wxT("centred on the right of"))); | |
107 | } | |
108 | ||
109 | void OGLCleanUpConstraintTypes() | |
110 | { | |
111 | if (!wxOGLConstraintTypes) | |
112 | return; | |
113 | ||
114 | wxNode* node = wxOGLConstraintTypes->GetFirst(); | |
115 | while (node) | |
116 | { | |
117 | wxOGLConstraintType* ct = (wxOGLConstraintType*) node->GetData(); | |
118 | delete ct; | |
119 | node = node->GetNext(); | |
120 | } | |
121 | delete wxOGLConstraintTypes; | |
122 | wxOGLConstraintTypes = NULL; | |
123 | } | |
124 | ||
125 | /* | |
126 | * Constraint Stuff | |
127 | * | |
128 | */ | |
129 | ||
130 | IMPLEMENT_DYNAMIC_CLASS(wxOGLConstraint, wxObject) | |
131 | ||
132 | wxOGLConstraint::wxOGLConstraint(int type, wxShape *constraining, wxList& constrained) | |
133 | { | |
134 | m_xSpacing = 0.0; | |
135 | m_ySpacing = 0.0; | |
136 | ||
137 | m_constraintType = type; | |
138 | m_constrainingObject = constraining; | |
139 | ||
140 | m_constraintId = 0; | |
141 | m_constraintName = wxT("noname"); | |
142 | ||
143 | wxNode *node = constrained.GetFirst(); | |
144 | while (node) | |
145 | { | |
146 | m_constrainedObjects.Append(node->GetData()); | |
147 | node = node->GetNext(); | |
148 | } | |
149 | } | |
150 | ||
151 | wxOGLConstraint::~wxOGLConstraint() | |
152 | { | |
153 | } | |
154 | ||
155 | bool wxOGLConstraint::Equals(double a, double b) | |
156 | { | |
157 | double marg = 0.5; | |
158 | ||
159 | bool eq = ((b <= a + marg) && (b >= a - marg)); | |
160 | return eq; | |
161 | } | |
162 | ||
163 | // Return true if anything changed | |
164 | bool wxOGLConstraint::Evaluate() | |
165 | { | |
166 | double maxWidth, maxHeight, minWidth, minHeight, x, y; | |
167 | m_constrainingObject->GetBoundingBoxMax(&maxWidth, &maxHeight); | |
168 | m_constrainingObject->GetBoundingBoxMin(&minWidth, &minHeight); | |
169 | x = m_constrainingObject->GetX(); | |
170 | y = m_constrainingObject->GetY(); | |
171 | ||
172 | wxClientDC dc(m_constrainingObject->GetCanvas()); | |
173 | m_constrainingObject->GetCanvas()->PrepareDC(dc); | |
174 | ||
175 | switch (m_constraintType) | |
176 | { | |
177 | case gyCONSTRAINT_CENTRED_VERTICALLY: | |
178 | { | |
179 | int n = m_constrainedObjects.GetCount(); | |
180 | double totalObjectHeight = 0.0; | |
181 | wxNode *node = m_constrainedObjects.GetFirst(); | |
182 | while (node) | |
183 | { | |
184 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
185 | ||
186 | double width2, height2; | |
187 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
188 | totalObjectHeight += height2; | |
189 | node = node->GetNext(); | |
190 | } | |
191 | double startY; | |
192 | double spacingY; | |
193 | // Check if within the constraining object... | |
194 | if ((totalObjectHeight + (n + 1)*m_ySpacing) <= minHeight) | |
195 | { | |
196 | spacingY = (double)((minHeight - totalObjectHeight)/(n + 1)); | |
197 | startY = (double)(y - (minHeight/2.0)); | |
198 | } | |
199 | // Otherwise, use default spacing | |
200 | else | |
201 | { | |
202 | spacingY = m_ySpacing; | |
203 | startY = (double)(y - ((totalObjectHeight + (n+1)*spacingY)/2.0)); | |
204 | } | |
205 | ||
206 | // Now position the objects | |
207 | bool changed = false; | |
208 | node = m_constrainedObjects.GetFirst(); | |
209 | while (node) | |
210 | { | |
211 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
212 | double width2, height2; | |
213 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
214 | startY += (double)(spacingY + (height2/2.0)); | |
215 | if (!Equals(startY, constrainedObject->GetY())) | |
216 | { | |
217 | constrainedObject->Move(dc, constrainedObject->GetX(), startY, false); | |
218 | changed = true; | |
219 | } | |
220 | startY += (double)(height2/2.0); | |
221 | node = node->GetNext(); | |
222 | } | |
223 | return changed; | |
224 | } | |
225 | case gyCONSTRAINT_CENTRED_HORIZONTALLY: | |
226 | { | |
227 | int n = m_constrainedObjects.GetCount(); | |
228 | double totalObjectWidth = 0.0; | |
229 | wxNode *node = m_constrainedObjects.GetFirst(); | |
230 | while (node) | |
231 | { | |
232 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
233 | ||
234 | double width2, height2; | |
235 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
236 | totalObjectWidth += width2; | |
237 | node = node->GetNext(); | |
238 | } | |
239 | double startX; | |
240 | double spacingX; | |
241 | // Check if within the constraining object... | |
242 | if ((totalObjectWidth + (n + 1)*m_xSpacing) <= minWidth) | |
243 | { | |
244 | spacingX = (double)((minWidth - totalObjectWidth)/(n + 1)); | |
245 | startX = (double)(x - (minWidth/2.0)); | |
246 | } | |
247 | // Otherwise, use default spacing | |
248 | else | |
249 | { | |
250 | spacingX = m_xSpacing; | |
251 | startX = (double)(x - ((totalObjectWidth + (n+1)*spacingX)/2.0)); | |
252 | } | |
253 | ||
254 | // Now position the objects | |
255 | bool changed = false; | |
256 | node = m_constrainedObjects.GetFirst(); | |
257 | while (node) | |
258 | { | |
259 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
260 | double width2, height2; | |
261 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
262 | startX += (double)(spacingX + (width2/2.0)); | |
263 | if (!Equals(startX, constrainedObject->GetX())) | |
264 | { | |
265 | constrainedObject->Move(dc, startX, constrainedObject->GetY(), false); | |
266 | changed = true; | |
267 | } | |
268 | startX += (double)(width2/2.0); | |
269 | node = node->GetNext(); | |
270 | } | |
271 | return changed; | |
272 | } | |
273 | case gyCONSTRAINT_CENTRED_BOTH: | |
274 | { | |
275 | int n = m_constrainedObjects.GetCount(); | |
276 | double totalObjectWidth = 0.0; | |
277 | double totalObjectHeight = 0.0; | |
278 | wxNode *node = m_constrainedObjects.GetFirst(); | |
279 | while (node) | |
280 | { | |
281 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
282 | ||
283 | double width2, height2; | |
284 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
285 | totalObjectWidth += width2; | |
286 | totalObjectHeight += height2; | |
287 | node = node->GetNext(); | |
288 | } | |
289 | double startX; | |
290 | double spacingX; | |
291 | double startY; | |
292 | double spacingY; | |
293 | ||
294 | // Check if within the constraining object... | |
295 | if ((totalObjectWidth + (n + 1)*m_xSpacing) <= minWidth) | |
296 | { | |
297 | spacingX = (double)((minWidth - totalObjectWidth)/(n + 1)); | |
298 | startX = (double)(x - (minWidth/2.0)); | |
299 | } | |
300 | // Otherwise, use default spacing | |
301 | else | |
302 | { | |
303 | spacingX = m_xSpacing; | |
304 | startX = (double)(x - ((totalObjectWidth + (n+1)*spacingX)/2.0)); | |
305 | } | |
306 | ||
307 | // Check if within the constraining object... | |
308 | if ((totalObjectHeight + (n + 1)*m_ySpacing) <= minHeight) | |
309 | { | |
310 | spacingY = (double)((minHeight - totalObjectHeight)/(n + 1)); | |
311 | startY = (double)(y - (minHeight/2.0)); | |
312 | } | |
313 | // Otherwise, use default spacing | |
314 | else | |
315 | { | |
316 | spacingY = m_ySpacing; | |
317 | startY = (double)(y - ((totalObjectHeight + (n+1)*spacingY)/2.0)); | |
318 | } | |
319 | ||
320 | // Now position the objects | |
321 | bool changed = false; | |
322 | node = m_constrainedObjects.GetFirst(); | |
323 | while (node) | |
324 | { | |
325 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
326 | double width2, height2; | |
327 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
328 | startX += (double)(spacingX + (width2/2.0)); | |
329 | startY += (double)(spacingY + (height2/2.0)); | |
330 | ||
331 | if ((!Equals(startX, constrainedObject->GetX())) || (!Equals(startY, constrainedObject->GetY()))) | |
332 | { | |
333 | constrainedObject->Move(dc, startX, startY, false); | |
334 | changed = true; | |
335 | } | |
336 | ||
337 | startX += (double)(width2/2.0); | |
338 | startY += (double)(height2/2.0); | |
339 | ||
340 | node = node->GetNext(); | |
341 | } | |
342 | return changed; | |
343 | } | |
344 | case gyCONSTRAINT_LEFT_OF: | |
345 | { | |
346 | bool changed = false; | |
347 | ||
348 | wxNode *node = m_constrainedObjects.GetFirst(); | |
349 | while (node) | |
350 | { | |
351 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
352 | ||
353 | double width2, height2; | |
354 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
355 | ||
356 | double x3 = (double)(x - (minWidth/2.0) - (width2/2.0) - m_xSpacing); | |
357 | if (!Equals(x3, constrainedObject->GetX())) | |
358 | { | |
359 | changed = true; | |
360 | constrainedObject->Move(dc, x3, constrainedObject->GetY(), false); | |
361 | } | |
362 | ||
363 | node = node->GetNext(); | |
364 | } | |
365 | return changed; | |
366 | } | |
367 | case gyCONSTRAINT_RIGHT_OF: | |
368 | { | |
369 | bool changed = false; | |
370 | ||
371 | wxNode *node = m_constrainedObjects.GetFirst(); | |
372 | while (node) | |
373 | { | |
374 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
375 | ||
376 | double width2, height2; | |
377 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
378 | ||
379 | double x3 = (double)(x + (minWidth/2.0) + (width2/2.0) + m_xSpacing); | |
380 | if (!Equals(x3, constrainedObject->GetX())) | |
381 | { | |
382 | changed = true; | |
383 | constrainedObject->Move(dc, x3, constrainedObject->GetY(), false); | |
384 | } | |
385 | ||
386 | node = node->GetNext(); | |
387 | } | |
388 | return changed; | |
389 | } | |
390 | case gyCONSTRAINT_ABOVE: | |
391 | { | |
392 | bool changed = false; | |
393 | ||
394 | wxNode *node = m_constrainedObjects.GetFirst(); | |
395 | while (node) | |
396 | { | |
397 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
398 | ||
399 | double width2, height2; | |
400 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
401 | ||
402 | double y3 = (double)(y - (minHeight/2.0) - (height2/2.0) - m_ySpacing); | |
403 | if (!Equals(y3, constrainedObject->GetY())) | |
404 | { | |
405 | changed = true; | |
406 | constrainedObject->Move(dc, constrainedObject->GetX(), y3, false); | |
407 | } | |
408 | ||
409 | node = node->GetNext(); | |
410 | } | |
411 | return changed; | |
412 | } | |
413 | case gyCONSTRAINT_BELOW: | |
414 | { | |
415 | bool changed = false; | |
416 | ||
417 | wxNode *node = m_constrainedObjects.GetFirst(); | |
418 | while (node) | |
419 | { | |
420 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
421 | ||
422 | double width2, height2; | |
423 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
424 | ||
425 | double y3 = (double)(y + (minHeight/2.0) + (height2/2.0) + m_ySpacing); | |
426 | if (!Equals(y3, constrainedObject->GetY())) | |
427 | { | |
428 | changed = true; | |
429 | constrainedObject->Move(dc, constrainedObject->GetX(), y3, false); | |
430 | } | |
431 | ||
432 | node = node->GetNext(); | |
433 | } | |
434 | return changed; | |
435 | } | |
436 | case gyCONSTRAINT_ALIGNED_LEFT: | |
437 | { | |
438 | bool changed = false; | |
439 | ||
440 | wxNode *node = m_constrainedObjects.GetFirst(); | |
441 | while (node) | |
442 | { | |
443 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
444 | ||
445 | double width2, height2; | |
446 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
447 | ||
448 | double x3 = (double)(x - (minWidth/2.0) + (width2/2.0) + m_xSpacing); | |
449 | if (!Equals(x3, constrainedObject->GetX())) | |
450 | { | |
451 | changed = true; | |
452 | constrainedObject->Move(dc, x3, constrainedObject->GetY(), false); | |
453 | } | |
454 | ||
455 | node = node->GetNext(); | |
456 | } | |
457 | return changed; | |
458 | } | |
459 | case gyCONSTRAINT_ALIGNED_RIGHT: | |
460 | { | |
461 | bool changed = false; | |
462 | ||
463 | wxNode *node = m_constrainedObjects.GetFirst(); | |
464 | while (node) | |
465 | { | |
466 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
467 | ||
468 | double width2, height2; | |
469 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
470 | ||
471 | double x3 = (double)(x + (minWidth/2.0) - (width2/2.0) - m_xSpacing); | |
472 | if (!Equals(x3, constrainedObject->GetX())) | |
473 | { | |
474 | changed = true; | |
475 | constrainedObject->Move(dc, x3, constrainedObject->GetY(), false); | |
476 | } | |
477 | ||
478 | node = node->GetNext(); | |
479 | } | |
480 | return changed; | |
481 | #if 0 | |
482 | // two returned values ? | |
483 | return false; | |
484 | #endif | |
485 | } | |
486 | case gyCONSTRAINT_ALIGNED_TOP: | |
487 | { | |
488 | bool changed = false; | |
489 | ||
490 | wxNode *node = m_constrainedObjects.GetFirst(); | |
491 | while (node) | |
492 | { | |
493 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
494 | ||
495 | double width2, height2; | |
496 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
497 | ||
498 | double y3 = (double)(y - (minHeight/2.0) + (height2/2.0) + m_ySpacing); | |
499 | if (!Equals(y3, constrainedObject->GetY())) | |
500 | { | |
501 | changed = true; | |
502 | constrainedObject->Move(dc, constrainedObject->GetX(), y3, false); | |
503 | } | |
504 | ||
505 | node = node->GetNext(); | |
506 | } | |
507 | return changed; | |
508 | } | |
509 | case gyCONSTRAINT_ALIGNED_BOTTOM: | |
510 | { | |
511 | bool changed = false; | |
512 | ||
513 | wxNode *node = m_constrainedObjects.GetFirst(); | |
514 | while (node) | |
515 | { | |
516 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
517 | ||
518 | double width2, height2; | |
519 | constrainedObject->GetBoundingBoxMax(&width2, &height2); | |
520 | ||
521 | double y3 = (double)(y + (minHeight/2.0) - (height2/2.0) - m_ySpacing); | |
522 | if (!Equals(y3, constrainedObject->GetY())) | |
523 | { | |
524 | changed = true; | |
525 | constrainedObject->Move(dc, constrainedObject->GetX(), y3, false); | |
526 | } | |
527 | ||
528 | node = node->GetNext(); | |
529 | } | |
530 | return changed; | |
531 | } | |
532 | case gyCONSTRAINT_MIDALIGNED_LEFT: | |
533 | { | |
534 | bool changed = false; | |
535 | ||
536 | wxNode *node = m_constrainedObjects.GetFirst(); | |
537 | while (node) | |
538 | { | |
539 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
540 | ||
541 | double x3 = (double)(x - (minWidth/2.0)); | |
542 | if (!Equals(x3, constrainedObject->GetX())) | |
543 | { | |
544 | changed = true; | |
545 | constrainedObject->Move(dc, x3, constrainedObject->GetY(), false); | |
546 | } | |
547 | ||
548 | node = node->GetNext(); | |
549 | } | |
550 | return changed; | |
551 | } | |
552 | case gyCONSTRAINT_MIDALIGNED_RIGHT: | |
553 | { | |
554 | bool changed = false; | |
555 | ||
556 | wxNode *node = m_constrainedObjects.GetFirst(); | |
557 | while (node) | |
558 | { | |
559 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
560 | ||
561 | double x3 = (double)(x + (minWidth/2.0)); | |
562 | if (!Equals(x3, constrainedObject->GetX())) | |
563 | { | |
564 | changed = true; | |
565 | constrainedObject->Move(dc, x3, constrainedObject->GetY(), false); | |
566 | } | |
567 | ||
568 | node = node->GetNext(); | |
569 | } | |
570 | return changed; | |
571 | #if 0 | |
572 | // two returned values ? | |
573 | return false; | |
574 | #endif | |
575 | } | |
576 | case gyCONSTRAINT_MIDALIGNED_TOP: | |
577 | { | |
578 | bool changed = false; | |
579 | ||
580 | wxNode *node = m_constrainedObjects.GetFirst(); | |
581 | while (node) | |
582 | { | |
583 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
584 | ||
585 | double y3 = (double)(y - (minHeight/2.0)); | |
586 | if (!Equals(y3, constrainedObject->GetY())) | |
587 | { | |
588 | changed = true; | |
589 | constrainedObject->Move(dc, constrainedObject->GetX(), y3, false); | |
590 | } | |
591 | ||
592 | node = node->GetNext(); | |
593 | } | |
594 | return changed; | |
595 | } | |
596 | case gyCONSTRAINT_MIDALIGNED_BOTTOM: | |
597 | { | |
598 | bool changed = false; | |
599 | ||
600 | wxNode *node = m_constrainedObjects.GetFirst(); | |
601 | while (node) | |
602 | { | |
603 | wxShape *constrainedObject = (wxShape *)node->GetData(); | |
604 | ||
605 | double y3 = (double)(y + (minHeight/2.0)); | |
606 | if (!Equals(y3, constrainedObject->GetY())) | |
607 | { | |
608 | changed = true; | |
609 | constrainedObject->Move(dc, constrainedObject->GetX(), y3, false); | |
610 | } | |
611 | ||
612 | node = node->GetNext(); | |
613 | } | |
614 | return changed; | |
615 | } | |
616 | #if 0 | |
617 | // default value handled in main function body | |
618 | default: | |
619 | return false; | |
620 | #endif | |
621 | } | |
622 | return false; | |
623 | } | |
624 |