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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: mac/toplevel.cpp | |
3 | // Purpose: implements wxTopLevelWindow for MSW | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 24.09.01 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 2001 SciTech Software, Inc. (www.scitechsoft.com) | |
9 | // License: wxWindows license | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #ifdef __GNUG__ | |
21 | #pragma implementation "toplevel.h" | |
22 | #endif | |
23 | ||
24 | // For compilers that support precompilation, includes "wx.h". | |
25 | #include "wx/wxprec.h" | |
26 | ||
27 | #ifdef __BORLANDC__ | |
28 | #pragma hdrstop | |
29 | #endif | |
30 | ||
31 | #ifndef WX_PRECOMP | |
32 | #include "wx/app.h" | |
33 | #include "wx/toplevel.h" | |
34 | #include "wx/frame.h" | |
35 | #include "wx/string.h" | |
36 | #include "wx/log.h" | |
37 | #include "wx/intl.h" | |
38 | #endif //WX_PRECOMP | |
39 | ||
40 | #include "wx/mac/uma.h" | |
41 | #include "wx/mac/aga.h" | |
42 | #include "wx/tooltip.h" | |
43 | #include "wx/dnd.h" | |
44 | ||
45 | #define wxMAC_DEBUG_REDRAW 0 | |
46 | #ifndef wxMAC_DEBUG_REDRAW | |
47 | #define wxMAC_DEBUG_REDRAW 0 | |
48 | #endif | |
49 | ||
50 | // ---------------------------------------------------------------------------- | |
51 | // globals | |
52 | // ---------------------------------------------------------------------------- | |
53 | ||
54 | // list of all frames and modeless dialogs | |
55 | wxWindowList wxModelessWindows; | |
56 | ||
57 | // ============================================================================ | |
58 | // wxTopLevelWindowMac implementation | |
59 | // ============================================================================ | |
60 | ||
61 | // --------------------------------------------------------------------------- | |
62 | // wxWindowMac utility functions | |
63 | // --------------------------------------------------------------------------- | |
64 | ||
65 | // Find an item given the Macintosh Window Reference | |
66 | ||
67 | wxList *wxWinMacWindowList = NULL; | |
68 | wxTopLevelWindowMac *wxFindWinFromMacWindow(WXWindow inWindowRef) | |
69 | { | |
70 | wxNode *node = wxWinMacWindowList->Find((long)inWindowRef); | |
71 | if (!node) | |
72 | return NULL; | |
73 | return (wxTopLevelWindowMac *)node->Data(); | |
74 | } | |
75 | ||
76 | void wxAssociateWinWithMacWindow(WXWindow inWindowRef, wxTopLevelWindowMac *win) | |
77 | { | |
78 | // adding NULL WindowRef is (first) surely a result of an error and | |
79 | // (secondly) breaks menu command processing | |
80 | wxCHECK_RET( inWindowRef != (WindowRef) NULL, "attempt to add a NULL WindowRef to window list" ); | |
81 | ||
82 | if ( !wxWinMacWindowList->Find((long)inWindowRef) ) | |
83 | wxWinMacWindowList->Append((long)inWindowRef, win); | |
84 | } | |
85 | ||
86 | void wxRemoveMacWindowAssociation(wxTopLevelWindowMac *win) | |
87 | { | |
88 | wxWinMacWindowList->DeleteObject(win); | |
89 | } | |
90 | ||
91 | ||
92 | // ---------------------------------------------------------------------------- | |
93 | // wxTopLevelWindowMac creation | |
94 | // ---------------------------------------------------------------------------- | |
95 | ||
96 | WXHWND wxTopLevelWindowMac::s_macWindowInUpdate = NULL; | |
97 | ||
98 | void wxTopLevelWindowMac::Init() | |
99 | { | |
100 | m_iconized = | |
101 | m_maximizeOnShow = FALSE; | |
102 | m_macNoEraseUpdateRgn = NewRgn() ; | |
103 | m_macNeedsErasing = false ; | |
104 | m_macWindow = NULL ; | |
105 | } | |
106 | ||
107 | bool wxTopLevelWindowMac::Create(wxWindow *parent, | |
108 | wxWindowID id, | |
109 | const wxString& title, | |
110 | const wxPoint& pos, | |
111 | const wxSize& size, | |
112 | long style, | |
113 | const wxString& name) | |
114 | { | |
115 | // init our fields | |
116 | Init(); | |
117 | ||
118 | m_windowStyle = style; | |
119 | ||
120 | SetName(name); | |
121 | ||
122 | m_windowId = id == -1 ? NewControlId() : id; | |
123 | ||
124 | wxTopLevelWindows.Append(this); | |
125 | ||
126 | if ( parent ) | |
127 | parent->AddChild(this); | |
128 | ||
129 | return TRUE; | |
130 | } | |
131 | ||
132 | wxTopLevelWindowMac::~wxTopLevelWindowMac() | |
133 | { | |
134 | if ( m_macWindow ) | |
135 | { | |
136 | wxToolTip::NotifyWindowDelete(m_macWindow) ; | |
137 | UMADisposeWindow( (WindowRef) m_macWindow ) ; | |
138 | } | |
139 | ||
140 | wxRemoveMacWindowAssociation( this ) ; | |
141 | ||
142 | wxTopLevelWindows.DeleteObject(this); | |
143 | ||
144 | if ( wxModelessWindows.Find(this) ) | |
145 | wxModelessWindows.DeleteObject(this); | |
146 | ||
147 | // If this is the last top-level window, exit. | |
148 | if ( wxTheApp && (wxTopLevelWindows.Number() == 0) ) | |
149 | { | |
150 | wxTheApp->SetTopWindow(NULL); | |
151 | ||
152 | if ( wxTheApp->GetExitOnFrameDelete() ) | |
153 | { | |
154 | wxTheApp->ExitMainLoop() ; | |
155 | } | |
156 | } | |
157 | DisposeRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ; | |
158 | } | |
159 | ||
160 | ||
161 | // ---------------------------------------------------------------------------- | |
162 | // wxTopLevelWindowMac maximize/minimize | |
163 | // ---------------------------------------------------------------------------- | |
164 | ||
165 | void wxTopLevelWindowMac::Maximize(bool maximize) | |
166 | { | |
167 | // not available on mac | |
168 | } | |
169 | ||
170 | bool wxTopLevelWindowMac::IsMaximized() const | |
171 | { | |
172 | return false ; | |
173 | } | |
174 | ||
175 | void wxTopLevelWindowMac::Iconize(bool iconize) | |
176 | { | |
177 | // not available on mac | |
178 | } | |
179 | ||
180 | bool wxTopLevelWindowMac::IsIconized() const | |
181 | { | |
182 | // mac dialogs cannot be iconized | |
183 | return FALSE; | |
184 | } | |
185 | ||
186 | void wxTopLevelWindowMac::Restore() | |
187 | { | |
188 | // not available on mac | |
189 | } | |
190 | ||
191 | // ---------------------------------------------------------------------------- | |
192 | // wxTopLevelWindowMac misc | |
193 | // ---------------------------------------------------------------------------- | |
194 | ||
195 | void wxTopLevelWindowMac::SetIcon(const wxIcon& icon) | |
196 | { | |
197 | // this sets m_icon | |
198 | wxTopLevelWindowBase::SetIcon(icon); | |
199 | } | |
200 | ||
201 | void wxTopLevelWindowMac::MacCreateRealWindow( const wxString& title, | |
202 | const wxPoint& pos, | |
203 | const wxSize& size, | |
204 | long style, | |
205 | const wxString& name ) | |
206 | { | |
207 | SetName(name); | |
208 | m_windowStyle = style; | |
209 | m_isShown = FALSE; | |
210 | ||
211 | // create frame. | |
212 | ||
213 | Rect theBoundsRect; | |
214 | ||
215 | m_x = (int)pos.x; | |
216 | m_y = (int)pos.y; | |
217 | if ( m_y < 50 ) | |
218 | m_y = 50 ; | |
219 | if ( m_x < 20 ) | |
220 | m_x = 20 ; | |
221 | ||
222 | m_width = size.x; | |
223 | if (m_width == -1) | |
224 | m_width = 20; | |
225 | m_height = size.y; | |
226 | if (m_height == -1) | |
227 | m_height = 20; | |
228 | ||
229 | ::SetRect(&theBoundsRect, m_x, m_y , m_x + m_width, m_y + m_height); | |
230 | ||
231 | // translate the window attributes in the appropriate window class and attributes | |
232 | ||
233 | WindowClass wclass = 0; | |
234 | WindowAttributes attr = kWindowNoAttributes ; | |
235 | ||
236 | if ( HasFlag(wxTINY_CAPTION_HORIZ) || HasFlag(wxTINY_CAPTION_VERT) ) | |
237 | { | |
238 | wclass = kFloatingWindowClass ; | |
239 | if ( HasFlag(wxTINY_CAPTION_VERT) ) | |
240 | { | |
241 | attr |= kWindowSideTitlebarAttribute ; | |
242 | } | |
243 | } | |
244 | else if ( HasFlag( wxCAPTION ) ) | |
245 | { | |
246 | if ( HasFlag( wxDIALOG_MODAL ) ) | |
247 | { | |
248 | wclass = kMovableModalWindowClass ; | |
249 | } | |
250 | else | |
251 | { | |
252 | wclass = kDocumentWindowClass ; | |
253 | } | |
254 | } | |
255 | else | |
256 | { | |
257 | wclass = kModalWindowClass ; | |
258 | } | |
259 | ||
260 | if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ) | |
261 | { | |
262 | attr |= kWindowFullZoomAttribute ; | |
263 | attr |= kWindowCollapseBoxAttribute ; | |
264 | } | |
265 | if ( HasFlag( wxRESIZE_BORDER ) ) | |
266 | { | |
267 | attr |= kWindowResizableAttribute ; | |
268 | } | |
269 | if ( HasFlag( wxSYSTEM_MENU ) ) | |
270 | { | |
271 | attr |= kWindowCloseBoxAttribute ; | |
272 | } | |
273 | ||
274 | ::CreateNewWindow( wclass , attr , &theBoundsRect , (WindowRef*)&m_macWindow ) ; | |
275 | wxAssociateWinWithMacWindow( m_macWindow , this ) ; | |
276 | wxString label ; | |
277 | if( wxApp::s_macDefaultEncodingIsPC ) | |
278 | label = wxMacMakeMacStringFromPC( title ) ; | |
279 | else | |
280 | label = title ; | |
281 | UMASetWTitleC( (WindowRef)m_macWindow , label ) ; | |
282 | ::CreateRootControl( (WindowRef)m_macWindow , (ControlHandle*)&m_macRootControl ) ; | |
283 | ||
284 | m_macFocus = NULL ; | |
285 | } | |
286 | ||
287 | void wxTopLevelWindowMac::MacGetPortParams(WXPOINTPTR localOrigin, WXRECTPTR clipRect, WXHWND *window , wxWindowMac** rootwin) | |
288 | { | |
289 | ((Point*)localOrigin)->h = 0; | |
290 | ((Point*)localOrigin)->v = 0; | |
291 | ((Rect*)clipRect)->left = 0; | |
292 | ((Rect*)clipRect)->top = 0; | |
293 | ((Rect*)clipRect)->right = m_width; | |
294 | ((Rect*)clipRect)->bottom = m_height; | |
295 | *window = m_macWindow ; | |
296 | *rootwin = this ; | |
297 | } | |
298 | ||
299 | void wxTopLevelWindowMac::Clear() | |
300 | { | |
301 | wxWindow::Clear() ; | |
302 | } | |
303 | ||
304 | WXWidget wxTopLevelWindowMac::MacGetContainerForEmbedding() | |
305 | { | |
306 | return m_macRootControl ; | |
307 | } | |
308 | ||
309 | ||
310 | void wxTopLevelWindowMac::MacUpdate( long timestamp) | |
311 | { | |
312 | ||
313 | wxMacPortStateHelper help( (GrafPtr) GetWindowPort( (WindowRef) m_macWindow) ) ; | |
314 | ||
315 | BeginUpdate( (WindowRef)m_macWindow ) ; | |
316 | ||
317 | RgnHandle updateRgn = NewRgn(); | |
318 | RgnHandle diffRgn = NewRgn() ; | |
319 | if ( updateRgn && diffRgn ) | |
320 | { | |
321 | GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), updateRgn ); | |
322 | DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ; | |
323 | if ( !EmptyRgn( updateRgn ) ) | |
324 | { | |
325 | MacRedraw( updateRgn , timestamp , m_macNeedsErasing || !EmptyRgn( diffRgn ) ) ; | |
326 | } | |
327 | } | |
328 | if ( updateRgn ) | |
329 | DisposeRgn( updateRgn ); | |
330 | if ( diffRgn ) | |
331 | DisposeRgn( diffRgn ); | |
332 | EndUpdate( (WindowRef)m_macWindow ) ; | |
333 | SetEmptyRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ; | |
334 | m_macNeedsErasing = false ; | |
335 | } | |
336 | ||
337 | ||
338 | // Raise the window to the top of the Z order | |
339 | void wxTopLevelWindowMac::Raise() | |
340 | { | |
341 | ::BringToFront( (WindowRef)m_macWindow ) ; | |
342 | } | |
343 | ||
344 | // Lower the window to the bottom of the Z order | |
345 | void wxTopLevelWindowMac::Lower() | |
346 | { | |
347 | ::SendBehind( (WindowRef)m_macWindow , NULL ) ; | |
348 | } | |
349 | ||
350 | Point lastWhere ; | |
351 | long lastWhen = 0 ; | |
352 | extern int wxBusyCursorCount ; | |
353 | ||
354 | void wxTopLevelWindowMac::MacFireMouseEvent( WXEVENTREF evr ) | |
355 | { | |
356 | EventRecord *ev = (EventRecord*) evr ; | |
357 | wxMouseEvent event(wxEVT_LEFT_DOWN); | |
358 | bool isDown = !(ev->modifiers & btnState) ; // 1 is for up | |
359 | bool controlDown = ev->modifiers & controlKey ; // for simulating right mouse | |
360 | ||
361 | event.m_leftDown = isDown && !controlDown; | |
362 | ||
363 | event.m_middleDown = FALSE; | |
364 | event.m_rightDown = isDown && controlDown; | |
365 | ||
366 | if ( ev->what == mouseDown ) | |
367 | { | |
368 | if ( controlDown ) | |
369 | event.SetEventType(wxEVT_RIGHT_DOWN ) ; | |
370 | else | |
371 | event.SetEventType(wxEVT_LEFT_DOWN ) ; | |
372 | } | |
373 | else if ( ev->what == mouseUp ) | |
374 | { | |
375 | if ( controlDown ) | |
376 | event.SetEventType(wxEVT_RIGHT_UP ) ; | |
377 | else | |
378 | event.SetEventType(wxEVT_LEFT_UP ) ; | |
379 | } | |
380 | else | |
381 | { | |
382 | event.SetEventType(wxEVT_MOTION ) ; | |
383 | } | |
384 | ||
385 | event.m_shiftDown = ev->modifiers & shiftKey; | |
386 | event.m_controlDown = ev->modifiers & controlKey; | |
387 | event.m_altDown = ev->modifiers & optionKey; | |
388 | event.m_metaDown = ev->modifiers & cmdKey; | |
389 | ||
390 | Point localwhere = ev->where ; | |
391 | ||
392 | GrafPtr port ; | |
393 | ::GetPort( &port ) ; | |
394 | ::SetPort( UMAGetWindowPort( (WindowRef)m_macWindow ) ) ; | |
395 | ::GlobalToLocal( &localwhere ) ; | |
396 | ::SetPort( port ) ; | |
397 | ||
398 | if ( ev->what == mouseDown ) | |
399 | { | |
400 | if ( ev->when - lastWhen <= GetDblTime() ) | |
401 | { | |
402 | if ( abs( localwhere.h - lastWhere.h ) < 3 || abs( localwhere.v - lastWhere.v ) < 3 ) | |
403 | { | |
404 | if ( controlDown ) | |
405 | event.SetEventType(wxEVT_RIGHT_DCLICK ) ; | |
406 | else | |
407 | event.SetEventType(wxEVT_LEFT_DCLICK ) ; | |
408 | } | |
409 | lastWhen = 0 ; | |
410 | } | |
411 | else | |
412 | { | |
413 | lastWhen = ev->when ; | |
414 | } | |
415 | lastWhere = localwhere ; | |
416 | } | |
417 | ||
418 | event.m_x = localwhere.h; | |
419 | event.m_y = localwhere.v; | |
420 | event.m_x += m_x; | |
421 | event.m_y += m_y; | |
422 | ||
423 | event.m_timeStamp = ev->when; | |
424 | event.SetEventObject(this); | |
425 | if ( wxTheApp->s_captureWindow ) | |
426 | { | |
427 | int x = event.m_x ; | |
428 | int y = event.m_y ; | |
429 | wxTheApp->s_captureWindow->ScreenToClient( &x , &y ) ; | |
430 | event.m_x = x ; | |
431 | event.m_y = y ; | |
432 | wxTheApp->s_captureWindow->GetEventHandler()->ProcessEvent( event ) ; | |
433 | ||
434 | if ( ev->what == mouseUp ) | |
435 | { | |
436 | wxTheApp->s_captureWindow = NULL ; | |
437 | if ( wxBusyCursorCount == 0 ) | |
438 | { | |
439 | m_cursor.MacInstall() ; | |
440 | } | |
441 | } | |
442 | } | |
443 | else | |
444 | { | |
445 | MacDispatchMouseEvent( event ) ; | |
446 | } | |
447 | } | |
448 | ||
449 | void wxTopLevelWindowMac::MacMouseDown( WXEVENTREF ev , short part) | |
450 | { | |
451 | MacFireMouseEvent( ev ) ; | |
452 | } | |
453 | ||
454 | void wxTopLevelWindowMac::MacMouseUp( WXEVENTREF ev , short part) | |
455 | { | |
456 | switch (part) | |
457 | { | |
458 | case inContent: | |
459 | { | |
460 | MacFireMouseEvent( ev ) ; | |
461 | } | |
462 | break ; | |
463 | } | |
464 | } | |
465 | ||
466 | void wxTopLevelWindowMac::MacMouseMoved( WXEVENTREF ev , short part) | |
467 | { | |
468 | switch (part) | |
469 | { | |
470 | case inContent: | |
471 | { | |
472 | MacFireMouseEvent( ev ) ; | |
473 | } | |
474 | break ; | |
475 | } | |
476 | } | |
477 | void wxTopLevelWindowMac::MacActivate( WXEVENTREF ev , bool inIsActivating ) | |
478 | { | |
479 | wxActivateEvent event(wxEVT_ACTIVATE, inIsActivating , m_windowId); | |
480 | event.m_timeStamp = ((EventRecord*)ev)->when ; | |
481 | event.SetEventObject(this); | |
482 | ||
483 | GetEventHandler()->ProcessEvent(event); | |
484 | ||
485 | UMAHighlightAndActivateWindow( (WindowRef)m_macWindow , inIsActivating ) ; | |
486 | ||
487 | MacSuperEnabled( inIsActivating ) ; | |
488 | } | |
489 | ||
490 | void wxTopLevelWindowMac::MacKeyDown( WXEVENTREF ev ) | |
491 | { | |
492 | } | |
493 | ||
494 | void wxTopLevelWindowMac::SetTitle(const wxString& title) | |
495 | { | |
496 | wxWindow::SetTitle( title ) ; | |
497 | ||
498 | wxString label ; | |
499 | ||
500 | if( wxApp::s_macDefaultEncodingIsPC ) | |
501 | label = wxMacMakeMacStringFromPC( m_label ) ; | |
502 | else | |
503 | label = m_label ; | |
504 | ||
505 | UMASetWTitleC( (WindowRef)m_macWindow , label ) ; | |
506 | } | |
507 | ||
508 | bool wxTopLevelWindowMac::Show(bool show) | |
509 | { | |
510 | if ( !wxWindow::Show(show) ) | |
511 | return FALSE; | |
512 | ||
513 | if (show) | |
514 | { | |
515 | ::ShowWindow( (WindowRef)m_macWindow ) ; | |
516 | ::SelectWindow( (WindowRef)m_macWindow ) ; | |
517 | // no need to generate events here, they will get them triggered by macos | |
518 | // actually they should be , but apparently they are not | |
519 | wxSize size(m_width, m_height); | |
520 | wxSizeEvent event(size, m_windowId); | |
521 | event.SetEventObject(this); | |
522 | GetEventHandler()->ProcessEvent(event); | |
523 | } | |
524 | else | |
525 | { | |
526 | ::HideWindow( (WindowRef)m_macWindow ) ; | |
527 | } | |
528 | ||
529 | if ( !show ) | |
530 | { | |
531 | } | |
532 | else | |
533 | { | |
534 | Refresh() ; | |
535 | } | |
536 | ||
537 | return TRUE; | |
538 | } | |
539 | ||
540 | void wxTopLevelWindowMac::DoMoveWindow(int x, int y, int width, int height) | |
541 | { | |
542 | int former_x = m_x ; | |
543 | int former_y = m_y ; | |
544 | int former_w = m_width ; | |
545 | int former_h = m_height ; | |
546 | ||
547 | int actualWidth = width; | |
548 | int actualHeight = height; | |
549 | int actualX = x; | |
550 | int actualY = y; | |
551 | ||
552 | if ((m_minWidth != -1) && (actualWidth < m_minWidth)) | |
553 | actualWidth = m_minWidth; | |
554 | if ((m_minHeight != -1) && (actualHeight < m_minHeight)) | |
555 | actualHeight = m_minHeight; | |
556 | if ((m_maxWidth != -1) && (actualWidth > m_maxWidth)) | |
557 | actualWidth = m_maxWidth; | |
558 | if ((m_maxHeight != -1) && (actualHeight > m_maxHeight)) | |
559 | actualHeight = m_maxHeight; | |
560 | ||
561 | bool doMove = false ; | |
562 | bool doResize = false ; | |
563 | ||
564 | if ( actualX != former_x || actualY != former_y ) | |
565 | { | |
566 | doMove = true ; | |
567 | } | |
568 | if ( actualWidth != former_w || actualHeight != former_h ) | |
569 | { | |
570 | doResize = true ; | |
571 | } | |
572 | ||
573 | if ( doMove || doResize ) | |
574 | { | |
575 | m_x = actualX ; | |
576 | m_y = actualY ; | |
577 | m_width = actualWidth ; | |
578 | m_height = actualHeight ; | |
579 | ||
580 | if ( doMove ) | |
581 | ::MoveWindow((WindowRef)m_macWindow, m_x, m_y , false); // don't make frontmost | |
582 | ||
583 | if ( doResize ) | |
584 | ::SizeWindow((WindowRef)m_macWindow, m_width, m_height , true); | |
585 | ||
586 | // the OS takes care of invalidating and erasing the new area | |
587 | // we have erased the old one | |
588 | ||
589 | if ( IsKindOf( CLASSINFO( wxFrame ) ) ) | |
590 | { | |
591 | wxFrame* frame = (wxFrame*) this ; | |
592 | frame->PositionStatusBar(); | |
593 | frame->PositionToolBar(); | |
594 | } | |
595 | if ( doMove ) | |
596 | wxWindowMac::MacTopLevelWindowChangedPosition() ; // like this only children will be notified | |
597 | ||
598 | MacRepositionScrollBars() ; | |
599 | if ( doMove ) | |
600 | { | |
601 | wxPoint point(m_x, m_y); | |
602 | wxMoveEvent event(point, m_windowId); | |
603 | event.SetEventObject(this); | |
604 | GetEventHandler()->ProcessEvent(event) ; | |
605 | } | |
606 | if ( doResize ) | |
607 | { | |
608 | MacRepositionScrollBars() ; | |
609 | wxSize size(m_width, m_height); | |
610 | wxSizeEvent event(size, m_windowId); | |
611 | event.SetEventObject(this); | |
612 | GetEventHandler()->ProcessEvent(event); | |
613 | } | |
614 | } | |
615 | ||
616 | } | |
617 | ||
618 | /* | |
619 | * Invalidation Mechanism | |
620 | * | |
621 | * The update mechanism reflects exactely the windows mechanism | |
622 | * the rect gets added to the window invalidate region, if the eraseBackground flag | |
623 | * has been true for any part of the update rgn the background is erased in the entire region | |
624 | * not just in the specified rect. | |
625 | * | |
626 | * In order to achive this, we also have an internal m_macNoEraseUpdateRgn, all rects that have | |
627 | * the eraseBackground flag set to false are also added to this rgn. upon receiving an update event | |
628 | * the update rgn is compared to the m_macNoEraseUpdateRgn and in case they differ, every window | |
629 | * will get the eraseBackground event first | |
630 | */ | |
631 | ||
632 | void wxTopLevelWindowMac::MacInvalidate( const WXRECTPTR rect, bool eraseBackground ) | |
633 | { | |
634 | GrafPtr formerPort ; | |
635 | GetPort( &formerPort ) ; | |
636 | SetPortWindowPort( (WindowRef)m_macWindow ) ; | |
637 | ||
638 | m_macNeedsErasing |= eraseBackground ; | |
639 | ||
640 | // if we already know that we will have to erase, there's no need to track the rest | |
641 | if ( !m_macNeedsErasing) | |
642 | { | |
643 | // we end only here if eraseBackground is false | |
644 | // if we already have a difference between m_macNoEraseUpdateRgn and UpdateRgn | |
645 | // we will have to erase anyway | |
646 | ||
647 | RgnHandle updateRgn = NewRgn(); | |
648 | RgnHandle diffRgn = NewRgn() ; | |
649 | if ( updateRgn && diffRgn ) | |
650 | { | |
651 | GetWindowUpdateRgn( (WindowRef)m_macWindow , updateRgn ); | |
652 | Point pt = {0,0} ; | |
653 | LocalToGlobal( &pt ) ; | |
654 | OffsetRgn( updateRgn , -pt.h , -pt.v ) ; | |
655 | DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ; | |
656 | if ( !EmptyRgn( diffRgn ) ) | |
657 | { | |
658 | m_macNeedsErasing = true ; | |
659 | } | |
660 | } | |
661 | if ( updateRgn ) | |
662 | DisposeRgn( updateRgn ); | |
663 | if ( diffRgn ) | |
664 | DisposeRgn( diffRgn ); | |
665 | ||
666 | if ( !m_macNeedsErasing ) | |
667 | { | |
668 | RgnHandle rectRgn = NewRgn() ; | |
669 | SetRectRgn( rectRgn , ((Rect*)rect)->left , ((Rect*)rect)->top , ((Rect*)rect)->right , ((Rect*)rect)->bottom ) ; | |
670 | UnionRgn( (RgnHandle) m_macNoEraseUpdateRgn , rectRgn , (RgnHandle) m_macNoEraseUpdateRgn ) ; | |
671 | DisposeRgn( rectRgn ) ; | |
672 | } | |
673 | } | |
674 | InvalWindowRect( (WindowRef)m_macWindow , (Rect*)rect ) ; | |
675 | // turn this on to debug the refreshing cycle | |
676 | #if wxMAC_DEBUG_REDRAW | |
677 | PaintRect( rect ) ; | |
678 | #endif | |
679 | SetPort( formerPort ) ; | |
680 | } | |
681 |