]>
Commit | Line | Data |
---|---|---|
1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: layout.cpp | |
3 | // Purpose: Constraint layout system classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 04/01/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================= | |
13 | // declarations | |
14 | // ============================================================================= | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | // For compilers that support precompilation, includes "wx.h". | |
21 | #include "wx/wxprec.h" | |
22 | ||
23 | #ifdef __BORLANDC__ | |
24 | #pragma hdrstop | |
25 | #endif | |
26 | ||
27 | #ifndef WX_PRECOMP | |
28 | #include "wx/defs.h" | |
29 | #endif | |
30 | ||
31 | #if wxUSE_CONSTRAINTS | |
32 | ||
33 | #ifndef WX_PRECOMP | |
34 | #include "wx/window.h" | |
35 | #include "wx/utils.h" | |
36 | #include "wx/dialog.h" | |
37 | #include "wx/msgdlg.h" | |
38 | #include "wx/intl.h" | |
39 | #endif | |
40 | ||
41 | #include "wx/layout.h" | |
42 | ||
43 | IMPLEMENT_DYNAMIC_CLASS(wxIndividualLayoutConstraint, wxObject) | |
44 | IMPLEMENT_DYNAMIC_CLASS(wxLayoutConstraints, wxObject) | |
45 | ||
46 | ||
47 | ||
48 | inline void wxGetAsIs(wxWindowBase* win, int* w, int* h) | |
49 | { | |
50 | #if 1 | |
51 | // The old way. Works for me. | |
52 | win->GetSize(w, h); | |
53 | #endif | |
54 | ||
55 | #if 0 | |
56 | // Vadim's change. Breaks wxPython's LayoutAnchors | |
57 | win->GetBestSize(w, h); | |
58 | #endif | |
59 | ||
60 | #if 0 | |
61 | // Proposed compromise. Doesn't work. | |
62 | int sw, sh, bw, bh; | |
63 | win->GetSize(&sw, &sh); | |
64 | win->GetBestSize(&bw, &bh); | |
65 | if (w) | |
66 | *w = wxMax(sw, bw); | |
67 | if (h) | |
68 | *h = wxMax(sh, bh); | |
69 | #endif | |
70 | } | |
71 | ||
72 | ||
73 | wxIndividualLayoutConstraint::wxIndividualLayoutConstraint() | |
74 | { | |
75 | myEdge = wxTop; | |
76 | relationship = wxUnconstrained; | |
77 | margin = 0; | |
78 | value = 0; | |
79 | percent = 0; | |
80 | otherEdge = wxTop; | |
81 | done = false; | |
82 | otherWin = (wxWindowBase *) NULL; | |
83 | } | |
84 | ||
85 | void wxIndividualLayoutConstraint::Set(wxRelationship rel, wxWindowBase *otherW, wxEdge otherE, int val, int marg) | |
86 | { | |
87 | if (rel == wxSameAs) | |
88 | { | |
89 | // If Set is called by the user with wxSameAs then call SameAs to do | |
90 | // it since it will actually use wxPercent instead. | |
91 | SameAs(otherW, otherE, marg); | |
92 | return; | |
93 | } | |
94 | ||
95 | relationship = rel; | |
96 | otherWin = otherW; | |
97 | otherEdge = otherE; | |
98 | ||
99 | if ( rel == wxPercentOf ) | |
100 | { | |
101 | percent = val; | |
102 | } | |
103 | else | |
104 | { | |
105 | value = val; | |
106 | } | |
107 | ||
108 | margin = marg; | |
109 | } | |
110 | ||
111 | void wxIndividualLayoutConstraint::LeftOf(wxWindowBase *sibling, int marg) | |
112 | { | |
113 | Set(wxLeftOf, sibling, wxLeft, 0, marg); | |
114 | } | |
115 | ||
116 | void wxIndividualLayoutConstraint::RightOf(wxWindowBase *sibling, int marg) | |
117 | { | |
118 | Set(wxRightOf, sibling, wxRight, 0, marg); | |
119 | } | |
120 | ||
121 | void wxIndividualLayoutConstraint::Above(wxWindowBase *sibling, int marg) | |
122 | { | |
123 | Set(wxAbove, sibling, wxTop, 0, marg); | |
124 | } | |
125 | ||
126 | void wxIndividualLayoutConstraint::Below(wxWindowBase *sibling, int marg) | |
127 | { | |
128 | Set(wxBelow, sibling, wxBottom, 0, marg); | |
129 | } | |
130 | ||
131 | // | |
132 | // 'Same edge' alignment | |
133 | // | |
134 | void wxIndividualLayoutConstraint::SameAs(wxWindowBase *otherW, wxEdge edge, int marg) | |
135 | { | |
136 | Set(wxPercentOf, otherW, edge, 100, marg); | |
137 | } | |
138 | ||
139 | // The edge is a percentage of the other window's edge | |
140 | void wxIndividualLayoutConstraint::PercentOf(wxWindowBase *otherW, wxEdge wh, int per) | |
141 | { | |
142 | Set(wxPercentOf, otherW, wh, per); | |
143 | } | |
144 | ||
145 | // | |
146 | // Edge has absolute value | |
147 | // | |
148 | void wxIndividualLayoutConstraint::Absolute(int val) | |
149 | { | |
150 | value = val; | |
151 | relationship = wxAbsolute; | |
152 | } | |
153 | ||
154 | // Reset constraint if it mentions otherWin | |
155 | bool wxIndividualLayoutConstraint::ResetIfWin(wxWindowBase *otherW) | |
156 | { | |
157 | if (otherW == otherWin) | |
158 | { | |
159 | myEdge = wxTop; | |
160 | relationship = wxAsIs; | |
161 | margin = 0; | |
162 | value = 0; | |
163 | percent = 0; | |
164 | otherEdge = wxTop; | |
165 | otherWin = (wxWindowBase *) NULL; | |
166 | return true; | |
167 | } | |
168 | ||
169 | return false; | |
170 | } | |
171 | ||
172 | // Try to satisfy constraint | |
173 | bool wxIndividualLayoutConstraint::SatisfyConstraint(wxLayoutConstraints *constraints, wxWindowBase *win) | |
174 | { | |
175 | if (relationship == wxAbsolute) | |
176 | { | |
177 | done = true; | |
178 | return true; | |
179 | } | |
180 | ||
181 | switch (myEdge) | |
182 | { | |
183 | case wxLeft: | |
184 | { | |
185 | switch (relationship) | |
186 | { | |
187 | case wxLeftOf: | |
188 | { | |
189 | // We can know this edge if: otherWin is win's | |
190 | // parent, or otherWin has a satisfied constraint, | |
191 | // or otherWin has no constraint. | |
192 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
193 | if (edgePos != -1) | |
194 | { | |
195 | value = edgePos - margin; | |
196 | done = true; | |
197 | return true; | |
198 | } | |
199 | else | |
200 | return false; | |
201 | } | |
202 | case wxRightOf: | |
203 | { | |
204 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
205 | if (edgePos != -1) | |
206 | { | |
207 | value = edgePos + margin; | |
208 | done = true; | |
209 | return true; | |
210 | } | |
211 | else | |
212 | return false; | |
213 | } | |
214 | case wxPercentOf: | |
215 | { | |
216 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
217 | if (edgePos != -1) | |
218 | { | |
219 | value = (int)(edgePos*(((float)percent)*0.01) + margin); | |
220 | done = true; | |
221 | return true; | |
222 | } | |
223 | else | |
224 | return false; | |
225 | } | |
226 | case wxUnconstrained: | |
227 | { | |
228 | // We know the left-hand edge position if we know | |
229 | // the right-hand edge and we know the width; OR if | |
230 | // we know the centre and the width. | |
231 | if (constraints->right.GetDone() && constraints->width.GetDone()) | |
232 | { | |
233 | value = (constraints->right.GetValue() - constraints->width.GetValue() + margin); | |
234 | done = true; | |
235 | return true; | |
236 | } | |
237 | else if (constraints->centreX.GetDone() && constraints->width.GetDone()) | |
238 | { | |
239 | value = (int)(constraints->centreX.GetValue() - (constraints->width.GetValue()/2) + margin); | |
240 | done = true; | |
241 | return true; | |
242 | } | |
243 | else | |
244 | return false; | |
245 | } | |
246 | case wxAsIs: | |
247 | { | |
248 | int y; | |
249 | win->GetPosition(&value, &y); | |
250 | done = true; | |
251 | return true; | |
252 | } | |
253 | default: | |
254 | break; | |
255 | } | |
256 | break; | |
257 | } | |
258 | case wxRight: | |
259 | { | |
260 | switch (relationship) | |
261 | { | |
262 | case wxLeftOf: | |
263 | { | |
264 | // We can know this edge if: otherWin is win's | |
265 | // parent, or otherWin has a satisfied constraint, | |
266 | // or otherWin has no constraint. | |
267 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
268 | if (edgePos != -1) | |
269 | { | |
270 | value = edgePos - margin; | |
271 | done = true; | |
272 | return true; | |
273 | } | |
274 | else | |
275 | return false; | |
276 | } | |
277 | case wxRightOf: | |
278 | { | |
279 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
280 | if (edgePos != -1) | |
281 | { | |
282 | value = edgePos + margin; | |
283 | done = true; | |
284 | return true; | |
285 | } | |
286 | else | |
287 | return false; | |
288 | } | |
289 | case wxPercentOf: | |
290 | { | |
291 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
292 | if (edgePos != -1) | |
293 | { | |
294 | value = (int)(edgePos*(((float)percent)*0.01) - margin); | |
295 | done = true; | |
296 | return true; | |
297 | } | |
298 | else | |
299 | return false; | |
300 | } | |
301 | case wxUnconstrained: | |
302 | { | |
303 | // We know the right-hand edge position if we know the | |
304 | // left-hand edge and we know the width, OR if we know the | |
305 | // centre edge and the width. | |
306 | if (constraints->left.GetDone() && constraints->width.GetDone()) | |
307 | { | |
308 | value = (constraints->left.GetValue() + constraints->width.GetValue() - margin); | |
309 | done = true; | |
310 | return true; | |
311 | } | |
312 | else if (constraints->centreX.GetDone() && constraints->width.GetDone()) | |
313 | { | |
314 | value = (int)(constraints->centreX.GetValue() + (constraints->width.GetValue()/2) - margin); | |
315 | done = true; | |
316 | return true; | |
317 | } | |
318 | else | |
319 | return false; | |
320 | } | |
321 | case wxAsIs: | |
322 | { | |
323 | int x, y; | |
324 | int w, h; | |
325 | wxGetAsIs(win, &w, &h); | |
326 | win->GetPosition(&x, &y); | |
327 | value = x + w; | |
328 | done = true; | |
329 | return true; | |
330 | } | |
331 | default: | |
332 | break; | |
333 | } | |
334 | break; | |
335 | } | |
336 | case wxTop: | |
337 | { | |
338 | switch (relationship) | |
339 | { | |
340 | case wxAbove: | |
341 | { | |
342 | // We can know this edge if: otherWin is win's | |
343 | // parent, or otherWin has a satisfied constraint, | |
344 | // or otherWin has no constraint. | |
345 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
346 | if (edgePos != -1) | |
347 | { | |
348 | value = edgePos - margin; | |
349 | done = true; | |
350 | return true; | |
351 | } | |
352 | else | |
353 | return false; | |
354 | } | |
355 | case wxBelow: | |
356 | { | |
357 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
358 | if (edgePos != -1) | |
359 | { | |
360 | value = edgePos + margin; | |
361 | done = true; | |
362 | return true; | |
363 | } | |
364 | else | |
365 | return false; | |
366 | } | |
367 | case wxPercentOf: | |
368 | { | |
369 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
370 | if (edgePos != -1) | |
371 | { | |
372 | value = (int)(edgePos*(((float)percent)*0.01) + margin); | |
373 | done = true; | |
374 | return true; | |
375 | } | |
376 | else | |
377 | return false; | |
378 | } | |
379 | case wxUnconstrained: | |
380 | { | |
381 | // We know the top edge position if we know the bottom edge | |
382 | // and we know the height; OR if we know the centre edge and | |
383 | // the height. | |
384 | if (constraints->bottom.GetDone() && constraints->height.GetDone()) | |
385 | { | |
386 | value = (constraints->bottom.GetValue() - constraints->height.GetValue() + margin); | |
387 | done = true; | |
388 | return true; | |
389 | } | |
390 | else if (constraints->centreY.GetDone() && constraints->height.GetDone()) | |
391 | { | |
392 | value = (constraints->centreY.GetValue() - (constraints->height.GetValue()/2) + margin); | |
393 | done = true; | |
394 | return true; | |
395 | } | |
396 | else | |
397 | return false; | |
398 | } | |
399 | case wxAsIs: | |
400 | { | |
401 | int x; | |
402 | win->GetPosition(&x, &value); | |
403 | done = true; | |
404 | return true; | |
405 | } | |
406 | default: | |
407 | break; | |
408 | } | |
409 | break; | |
410 | } | |
411 | case wxBottom: | |
412 | { | |
413 | switch (relationship) | |
414 | { | |
415 | case wxAbove: | |
416 | { | |
417 | // We can know this edge if: otherWin is win's parent, | |
418 | // or otherWin has a satisfied constraint, or | |
419 | // otherWin has no constraint. | |
420 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
421 | if (edgePos != -1) | |
422 | { | |
423 | value = edgePos + margin; | |
424 | done = true; | |
425 | return true; | |
426 | } | |
427 | else | |
428 | return false; | |
429 | } | |
430 | case wxBelow: | |
431 | { | |
432 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
433 | if (edgePos != -1) | |
434 | { | |
435 | value = edgePos - margin; | |
436 | done = true; | |
437 | return true; | |
438 | } | |
439 | else | |
440 | return false; | |
441 | } | |
442 | case wxPercentOf: | |
443 | { | |
444 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
445 | if (edgePos != -1) | |
446 | { | |
447 | value = (int)(edgePos*(((float)percent)*0.01) - margin); | |
448 | done = true; | |
449 | return true; | |
450 | } | |
451 | else | |
452 | return false; | |
453 | } | |
454 | case wxUnconstrained: | |
455 | { | |
456 | // We know the bottom edge position if we know the top edge | |
457 | // and we know the height; OR if we know the centre edge and | |
458 | // the height. | |
459 | if (constraints->top.GetDone() && constraints->height.GetDone()) | |
460 | { | |
461 | value = (constraints->top.GetValue() + constraints->height.GetValue() - margin); | |
462 | done = true; | |
463 | return true; | |
464 | } | |
465 | else if (constraints->centreY.GetDone() && constraints->height.GetDone()) | |
466 | { | |
467 | value = (constraints->centreY.GetValue() + (constraints->height.GetValue()/2) - margin); | |
468 | done = true; | |
469 | return true; | |
470 | } | |
471 | else | |
472 | return false; | |
473 | } | |
474 | case wxAsIs: | |
475 | { | |
476 | int x, y; | |
477 | int w, h; | |
478 | wxGetAsIs(win, &w, &h); | |
479 | win->GetPosition(&x, &y); | |
480 | value = h + y; | |
481 | done = true; | |
482 | return true; | |
483 | } | |
484 | default: | |
485 | break; | |
486 | } | |
487 | break; | |
488 | } | |
489 | case wxCentreX: | |
490 | { | |
491 | switch (relationship) | |
492 | { | |
493 | case wxLeftOf: | |
494 | { | |
495 | // We can know this edge if: otherWin is win's parent, or | |
496 | // otherWin has a satisfied constraint, or otherWin has no | |
497 | // constraint. | |
498 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
499 | if (edgePos != -1) | |
500 | { | |
501 | value = edgePos - margin; | |
502 | done = true; | |
503 | return true; | |
504 | } | |
505 | else | |
506 | return false; | |
507 | } | |
508 | case wxRightOf: | |
509 | { | |
510 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
511 | if (edgePos != -1) | |
512 | { | |
513 | value = edgePos + margin; | |
514 | done = true; | |
515 | return true; | |
516 | } | |
517 | else | |
518 | return false; | |
519 | } | |
520 | case wxPercentOf: | |
521 | { | |
522 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
523 | if (edgePos != -1) | |
524 | { | |
525 | value = (int)(edgePos*(((float)percent)*0.01) + margin); | |
526 | done = true; | |
527 | return true; | |
528 | } | |
529 | else | |
530 | return false; | |
531 | } | |
532 | case wxUnconstrained: | |
533 | { | |
534 | // We know the centre position if we know | |
535 | // the left-hand edge and we know the width, OR | |
536 | // the right-hand edge and the width | |
537 | if (constraints->left.GetDone() && constraints->width.GetDone()) | |
538 | { | |
539 | value = (int)(constraints->left.GetValue() + (constraints->width.GetValue()/2) + margin); | |
540 | done = true; | |
541 | return true; | |
542 | } | |
543 | else if (constraints->right.GetDone() && constraints->width.GetDone()) | |
544 | { | |
545 | value = (int)(constraints->left.GetValue() - (constraints->width.GetValue()/2) + margin); | |
546 | done = true; | |
547 | return true; | |
548 | } | |
549 | else | |
550 | return false; | |
551 | } | |
552 | default: | |
553 | break; | |
554 | } | |
555 | break; | |
556 | } | |
557 | case wxCentreY: | |
558 | { | |
559 | switch (relationship) | |
560 | { | |
561 | case wxAbove: | |
562 | { | |
563 | // We can know this edge if: otherWin is win's parent, | |
564 | // or otherWin has a satisfied constraint, or otherWin | |
565 | // has no constraint. | |
566 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
567 | if (edgePos != -1) | |
568 | { | |
569 | value = edgePos - margin; | |
570 | done = true; | |
571 | return true; | |
572 | } | |
573 | else | |
574 | return false; | |
575 | } | |
576 | case wxBelow: | |
577 | { | |
578 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
579 | if (edgePos != -1) | |
580 | { | |
581 | value = edgePos + margin; | |
582 | done = true; | |
583 | return true; | |
584 | } | |
585 | else | |
586 | return false; | |
587 | } | |
588 | case wxPercentOf: | |
589 | { | |
590 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
591 | if (edgePos != -1) | |
592 | { | |
593 | value = (int)(edgePos*(((float)percent)*0.01) + margin); | |
594 | done = true; | |
595 | return true; | |
596 | } | |
597 | else | |
598 | return false; | |
599 | } | |
600 | case wxUnconstrained: | |
601 | { | |
602 | // We know the centre position if we know | |
603 | // the top edge and we know the height, OR | |
604 | // the bottom edge and the height. | |
605 | if (constraints->bottom.GetDone() && constraints->height.GetDone()) | |
606 | { | |
607 | value = (int)(constraints->bottom.GetValue() - (constraints->height.GetValue()/2) + margin); | |
608 | done = true; | |
609 | return true; | |
610 | } | |
611 | else if (constraints->top.GetDone() && constraints->height.GetDone()) | |
612 | { | |
613 | value = (int)(constraints->top.GetValue() + (constraints->height.GetValue()/2) + margin); | |
614 | done = true; | |
615 | return true; | |
616 | } | |
617 | else | |
618 | return false; | |
619 | } | |
620 | default: | |
621 | break; | |
622 | } | |
623 | break; | |
624 | } | |
625 | case wxWidth: | |
626 | { | |
627 | switch (relationship) | |
628 | { | |
629 | case wxPercentOf: | |
630 | { | |
631 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
632 | if (edgePos != -1) | |
633 | { | |
634 | value = (int)(edgePos*(((float)percent)*0.01)); | |
635 | done = true; | |
636 | return true; | |
637 | } | |
638 | else | |
639 | return false; | |
640 | } | |
641 | case wxAsIs: | |
642 | { | |
643 | if (win) | |
644 | { | |
645 | int h; | |
646 | wxGetAsIs(win, &value, &h); | |
647 | done = true; | |
648 | return true; | |
649 | } | |
650 | else return false; | |
651 | } | |
652 | case wxUnconstrained: | |
653 | { | |
654 | // We know the width if we know the left edge and the right edge, OR | |
655 | // if we know the left edge and the centre, OR | |
656 | // if we know the right edge and the centre | |
657 | if (constraints->left.GetDone() && constraints->right.GetDone()) | |
658 | { | |
659 | value = constraints->right.GetValue() - constraints->left.GetValue(); | |
660 | done = true; | |
661 | return true; | |
662 | } | |
663 | else if (constraints->centreX.GetDone() && constraints->left.GetDone()) | |
664 | { | |
665 | value = (int)(2*(constraints->centreX.GetValue() - constraints->left.GetValue())); | |
666 | done = true; | |
667 | return true; | |
668 | } | |
669 | else if (constraints->centreX.GetDone() && constraints->right.GetDone()) | |
670 | { | |
671 | value = (int)(2*(constraints->right.GetValue() - constraints->centreX.GetValue())); | |
672 | done = true; | |
673 | return true; | |
674 | } | |
675 | else | |
676 | return false; | |
677 | } | |
678 | default: | |
679 | break; | |
680 | } | |
681 | break; | |
682 | } | |
683 | case wxHeight: | |
684 | { | |
685 | switch (relationship) | |
686 | { | |
687 | case wxPercentOf: | |
688 | { | |
689 | int edgePos = GetEdge(otherEdge, win, otherWin); | |
690 | if (edgePos != -1) | |
691 | { | |
692 | value = (int)(edgePos*(((float)percent)*0.01)); | |
693 | done = true; | |
694 | return true; | |
695 | } | |
696 | else | |
697 | return false; | |
698 | } | |
699 | case wxAsIs: | |
700 | { | |
701 | if (win) | |
702 | { | |
703 | int w; | |
704 | wxGetAsIs(win, &w, &value); | |
705 | done = true; | |
706 | return true; | |
707 | } | |
708 | else return false; | |
709 | } | |
710 | case wxUnconstrained: | |
711 | { | |
712 | // We know the height if we know the top edge and the bottom edge, OR | |
713 | // if we know the top edge and the centre, OR | |
714 | // if we know the bottom edge and the centre | |
715 | if (constraints->top.GetDone() && constraints->bottom.GetDone()) | |
716 | { | |
717 | value = constraints->bottom.GetValue() - constraints->top.GetValue(); | |
718 | done = true; | |
719 | return true; | |
720 | } | |
721 | else if (constraints->top.GetDone() && constraints->centreY.GetDone()) | |
722 | { | |
723 | value = (int)(2*(constraints->centreY.GetValue() - constraints->top.GetValue())); | |
724 | done = true; | |
725 | return true; | |
726 | } | |
727 | else if (constraints->bottom.GetDone() && constraints->centreY.GetDone()) | |
728 | { | |
729 | value = (int)(2*(constraints->bottom.GetValue() - constraints->centreY.GetValue())); | |
730 | done = true; | |
731 | return true; | |
732 | } | |
733 | else | |
734 | return false; | |
735 | } | |
736 | default: | |
737 | break; | |
738 | } | |
739 | break; | |
740 | } | |
741 | default: | |
742 | break; | |
743 | } | |
744 | return false; | |
745 | } | |
746 | ||
747 | // Get the value of this edge or dimension, or if this is not determinable, -1. | |
748 | int wxIndividualLayoutConstraint::GetEdge(wxEdge which, | |
749 | wxWindowBase *thisWin, | |
750 | wxWindowBase *other) const | |
751 | { | |
752 | // If the edge or dimension belongs to the parent, then we know the | |
753 | // dimension is obtainable immediately. E.g. a wxExpandSizer may contain a | |
754 | // button (but the button's true parent is a panel, not the sizer) | |
755 | if (other->GetChildren().Find((wxWindow*)thisWin)) | |
756 | { | |
757 | switch (which) | |
758 | { | |
759 | case wxLeft: | |
760 | { | |
761 | return 0; | |
762 | } | |
763 | case wxTop: | |
764 | { | |
765 | return 0; | |
766 | } | |
767 | case wxRight: | |
768 | { | |
769 | int w, h; | |
770 | other->GetClientSizeConstraint(&w, &h); | |
771 | return w; | |
772 | } | |
773 | case wxBottom: | |
774 | { | |
775 | int w, h; | |
776 | other->GetClientSizeConstraint(&w, &h); | |
777 | return h; | |
778 | } | |
779 | case wxWidth: | |
780 | { | |
781 | int w, h; | |
782 | other->GetClientSizeConstraint(&w, &h); | |
783 | return w; | |
784 | } | |
785 | case wxHeight: | |
786 | { | |
787 | int w, h; | |
788 | other->GetClientSizeConstraint(&w, &h); | |
789 | return h; | |
790 | } | |
791 | case wxCentreX: | |
792 | case wxCentreY: | |
793 | { | |
794 | int w, h; | |
795 | other->GetClientSizeConstraint(&w, &h); | |
796 | if (which == wxCentreX) | |
797 | return (int)(w/2); | |
798 | else | |
799 | return (int)(h/2); | |
800 | } | |
801 | default: | |
802 | return -1; | |
803 | } | |
804 | } | |
805 | switch (which) | |
806 | { | |
807 | case wxLeft: | |
808 | { | |
809 | wxLayoutConstraints *constr = other->GetConstraints(); | |
810 | // If no constraints, it means the window is not dependent | |
811 | // on anything, and therefore we know its value immediately | |
812 | if (constr) | |
813 | { | |
814 | if (constr->left.GetDone()) | |
815 | return constr->left.GetValue(); | |
816 | else | |
817 | return -1; | |
818 | } | |
819 | else | |
820 | { | |
821 | int x, y; | |
822 | other->GetPosition(&x, &y); | |
823 | return x; | |
824 | } | |
825 | } | |
826 | case wxTop: | |
827 | { | |
828 | wxLayoutConstraints *constr = other->GetConstraints(); | |
829 | // If no constraints, it means the window is not dependent | |
830 | // on anything, and therefore we know its value immediately | |
831 | if (constr) | |
832 | { | |
833 | if (constr->top.GetDone()) | |
834 | return constr->top.GetValue(); | |
835 | else | |
836 | return -1; | |
837 | } | |
838 | else | |
839 | { | |
840 | int x, y; | |
841 | other->GetPosition(&x, &y); | |
842 | return y; | |
843 | } | |
844 | } | |
845 | case wxRight: | |
846 | { | |
847 | wxLayoutConstraints *constr = other->GetConstraints(); | |
848 | // If no constraints, it means the window is not dependent | |
849 | // on anything, and therefore we know its value immediately | |
850 | if (constr) | |
851 | { | |
852 | if (constr->right.GetDone()) | |
853 | return constr->right.GetValue(); | |
854 | else | |
855 | return -1; | |
856 | } | |
857 | else | |
858 | { | |
859 | int x, y, w, h; | |
860 | other->GetPosition(&x, &y); | |
861 | other->GetSize(&w, &h); | |
862 | return (int)(x + w); | |
863 | } | |
864 | } | |
865 | case wxBottom: | |
866 | { | |
867 | wxLayoutConstraints *constr = other->GetConstraints(); | |
868 | // If no constraints, it means the window is not dependent | |
869 | // on anything, and therefore we know its value immediately | |
870 | if (constr) | |
871 | { | |
872 | if (constr->bottom.GetDone()) | |
873 | return constr->bottom.GetValue(); | |
874 | else | |
875 | return -1; | |
876 | } | |
877 | else | |
878 | { | |
879 | int x, y, w, h; | |
880 | other->GetPosition(&x, &y); | |
881 | other->GetSize(&w, &h); | |
882 | return (int)(y + h); | |
883 | } | |
884 | } | |
885 | case wxWidth: | |
886 | { | |
887 | wxLayoutConstraints *constr = other->GetConstraints(); | |
888 | // If no constraints, it means the window is not dependent | |
889 | // on anything, and therefore we know its value immediately | |
890 | if (constr) | |
891 | { | |
892 | if (constr->width.GetDone()) | |
893 | return constr->width.GetValue(); | |
894 | else | |
895 | return -1; | |
896 | } | |
897 | else | |
898 | { | |
899 | int w, h; | |
900 | other->GetSize(&w, &h); | |
901 | return w; | |
902 | } | |
903 | } | |
904 | case wxHeight: | |
905 | { | |
906 | wxLayoutConstraints *constr = other->GetConstraints(); | |
907 | // If no constraints, it means the window is not dependent | |
908 | // on anything, and therefore we know its value immediately | |
909 | if (constr) | |
910 | { | |
911 | if (constr->height.GetDone()) | |
912 | return constr->height.GetValue(); | |
913 | else | |
914 | return -1; | |
915 | } | |
916 | else | |
917 | { | |
918 | int w, h; | |
919 | other->GetSize(&w, &h); | |
920 | return h; | |
921 | } | |
922 | } | |
923 | case wxCentreX: | |
924 | { | |
925 | wxLayoutConstraints *constr = other->GetConstraints(); | |
926 | // If no constraints, it means the window is not dependent | |
927 | // on anything, and therefore we know its value immediately | |
928 | if (constr) | |
929 | { | |
930 | if (constr->centreX.GetDone()) | |
931 | return constr->centreX.GetValue(); | |
932 | else | |
933 | return -1; | |
934 | } | |
935 | else | |
936 | { | |
937 | int x, y, w, h; | |
938 | other->GetPosition(&x, &y); | |
939 | other->GetSize(&w, &h); | |
940 | return (int)(x + (w/2)); | |
941 | } | |
942 | } | |
943 | case wxCentreY: | |
944 | { | |
945 | wxLayoutConstraints *constr = other->GetConstraints(); | |
946 | // If no constraints, it means the window is not dependent | |
947 | // on anything, and therefore we know its value immediately | |
948 | if (constr) | |
949 | { | |
950 | if (constr->centreY.GetDone()) | |
951 | return constr->centreY.GetValue(); | |
952 | else | |
953 | return -1; | |
954 | } | |
955 | else | |
956 | { | |
957 | int x, y, w, h; | |
958 | other->GetPosition(&x, &y); | |
959 | other->GetSize(&w, &h); | |
960 | return (int)(y + (h/2)); | |
961 | } | |
962 | } | |
963 | default: | |
964 | break; | |
965 | } | |
966 | return -1; | |
967 | } | |
968 | ||
969 | wxLayoutConstraints::wxLayoutConstraints() | |
970 | { | |
971 | left.SetEdge(wxLeft); | |
972 | top.SetEdge(wxTop); | |
973 | right.SetEdge(wxRight); | |
974 | bottom.SetEdge(wxBottom); | |
975 | centreX.SetEdge(wxCentreX); | |
976 | centreY.SetEdge(wxCentreY); | |
977 | width.SetEdge(wxWidth); | |
978 | height.SetEdge(wxHeight); | |
979 | } | |
980 | ||
981 | bool wxLayoutConstraints::SatisfyConstraints(wxWindowBase *win, int *nChanges) | |
982 | { | |
983 | int noChanges = 0; | |
984 | ||
985 | bool done = width.GetDone(); | |
986 | bool newDone = (done ? true : width.SatisfyConstraint(this, win)); | |
987 | if (newDone != done) | |
988 | noChanges ++; | |
989 | ||
990 | done = height.GetDone(); | |
991 | newDone = (done ? true : height.SatisfyConstraint(this, win)); | |
992 | if (newDone != done) | |
993 | noChanges ++; | |
994 | ||
995 | done = left.GetDone(); | |
996 | newDone = (done ? true : left.SatisfyConstraint(this, win)); | |
997 | if (newDone != done) | |
998 | noChanges ++; | |
999 | ||
1000 | done = top.GetDone(); | |
1001 | newDone = (done ? true : top.SatisfyConstraint(this, win)); | |
1002 | if (newDone != done) | |
1003 | noChanges ++; | |
1004 | ||
1005 | done = right.GetDone(); | |
1006 | newDone = (done ? true : right.SatisfyConstraint(this, win)); | |
1007 | if (newDone != done) | |
1008 | noChanges ++; | |
1009 | ||
1010 | done = bottom.GetDone(); | |
1011 | newDone = (done ? true : bottom.SatisfyConstraint(this, win)); | |
1012 | if (newDone != done) | |
1013 | noChanges ++; | |
1014 | ||
1015 | done = centreX.GetDone(); | |
1016 | newDone = (done ? true : centreX.SatisfyConstraint(this, win)); | |
1017 | if (newDone != done) | |
1018 | noChanges ++; | |
1019 | ||
1020 | done = centreY.GetDone(); | |
1021 | newDone = (done ? true : centreY.SatisfyConstraint(this, win)); | |
1022 | if (newDone != done) | |
1023 | noChanges ++; | |
1024 | ||
1025 | *nChanges = noChanges; | |
1026 | ||
1027 | return AreSatisfied(); | |
1028 | } | |
1029 | ||
1030 | #endif // wxUSE_CONSTRAINTS |