event exposure
[wxWidgets.git] / src / msw / frame.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: msw/frame.cpp
3 // Purpose: wxFrame
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
21 #pragma implementation "frame.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/frame.h"
33 #include "wx/app.h"
34 #include "wx/menu.h"
35 #include "wx/utils.h"
36 #include "wx/dialog.h"
37 #include "wx/settings.h"
38 #include "wx/dcclient.h"
39 #include "wx/mdi.h"
40 #include "wx/panel.h"
41 #endif // WX_PRECOMP
42
43 #include "wx/msw/private.h"
44
45 #ifdef __WXWINCE__
46 #include <commctrl.h>
47 #endif
48
49 #if wxUSE_STATUSBAR
50 #include "wx/statusbr.h"
51 #include "wx/generic/statusbr.h"
52 #endif // wxUSE_STATUSBAR
53
54 #if wxUSE_TOOLBAR
55 #include "wx/toolbar.h"
56 #endif // wxUSE_TOOLBAR
57
58 #include "wx/menuitem.h"
59 #include "wx/log.h"
60
61 #ifdef __WXUNIVERSAL__
62 #include "wx/univ/theme.h"
63 #include "wx/univ/colschem.h"
64 #endif // __WXUNIVERSAL__
65
66 // ----------------------------------------------------------------------------
67 // globals
68 // ----------------------------------------------------------------------------
69
70 #if wxUSE_MENUS_NATIVE
71 extern wxMenu *wxCurrentPopupMenu;
72 #endif // wxUSE_MENUS_NATIVE
73
74 // ----------------------------------------------------------------------------
75 // event tables
76 // ----------------------------------------------------------------------------
77
78 BEGIN_EVENT_TABLE(wxFrame, wxFrameBase)
79 EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
80 END_EVENT_TABLE()
81
82 #if wxUSE_EXTENDED_RTTI
83 WX_DEFINE_FLAGS( wxFrameStyle )
84
85 WX_BEGIN_FLAGS( wxFrameStyle )
86 // new style border flags, we put them first to
87 // use them for streaming out
88 WX_FLAGS_MEMBER(wxBORDER_SIMPLE)
89 WX_FLAGS_MEMBER(wxBORDER_SUNKEN)
90 WX_FLAGS_MEMBER(wxBORDER_DOUBLE)
91 WX_FLAGS_MEMBER(wxBORDER_RAISED)
92 WX_FLAGS_MEMBER(wxBORDER_STATIC)
93 WX_FLAGS_MEMBER(wxBORDER_NONE)
94
95 // old style border flags
96 WX_FLAGS_MEMBER(wxSIMPLE_BORDER)
97 WX_FLAGS_MEMBER(wxSUNKEN_BORDER)
98 WX_FLAGS_MEMBER(wxDOUBLE_BORDER)
99 WX_FLAGS_MEMBER(wxRAISED_BORDER)
100 WX_FLAGS_MEMBER(wxSTATIC_BORDER)
101 WX_FLAGS_MEMBER(wxNO_BORDER)
102
103 // standard window styles
104 WX_FLAGS_MEMBER(wxTAB_TRAVERSAL)
105 WX_FLAGS_MEMBER(wxCLIP_CHILDREN)
106 WX_FLAGS_MEMBER(wxTRANSPARENT_WINDOW)
107 WX_FLAGS_MEMBER(wxWANTS_CHARS)
108 WX_FLAGS_MEMBER(wxNO_FULL_REPAINT_ON_RESIZE)
109 WX_FLAGS_MEMBER(wxALWAYS_SHOW_SB )
110 WX_FLAGS_MEMBER(wxVSCROLL)
111 WX_FLAGS_MEMBER(wxHSCROLL)
112
113 // frame styles
114 WX_FLAGS_MEMBER(wxSTAY_ON_TOP)
115 WX_FLAGS_MEMBER(wxCAPTION)
116 WX_FLAGS_MEMBER(wxTHICK_FRAME)
117 WX_FLAGS_MEMBER(wxSYSTEM_MENU)
118 WX_FLAGS_MEMBER(wxRESIZE_BORDER)
119 WX_FLAGS_MEMBER(wxRESIZE_BOX)
120 WX_FLAGS_MEMBER(wxCLOSE_BOX)
121 WX_FLAGS_MEMBER(wxMAXIMIZE_BOX)
122 WX_FLAGS_MEMBER(wxMINIMIZE_BOX)
123
124 WX_FLAGS_MEMBER(wxFRAME_TOOL_WINDOW)
125 WX_FLAGS_MEMBER(wxFRAME_FLOAT_ON_PARENT)
126
127 WX_FLAGS_MEMBER(wxFRAME_SHAPED)
128
129 WX_END_FLAGS( wxFrameStyle )
130
131 IMPLEMENT_DYNAMIC_CLASS_XTI(wxFrame, wxTopLevelWindow,"wx/frame.h")
132
133 WX_BEGIN_PROPERTIES_TABLE(wxFrame)
134 WX_DELEGATE( OnMenu , wxEVT_COMMAND_MENU_SELECTED , wxCommandEvent)
135
136 WX_PROPERTY( Title,wxString, SetTitle, GetTitle, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
137 WX_PROPERTY_FLAGS( WindowStyle , wxFrameStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
138 WX_PROPERTY( MenuBar , wxMenuBar * , SetMenuBar , GetMenuBar , , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
139 WX_END_PROPERTIES_TABLE()
140
141 WX_BEGIN_HANDLERS_TABLE(wxFrame)
142 WX_END_HANDLERS_TABLE()
143
144 WX_CONSTRUCTOR_6( wxFrame , wxWindow* , Parent , wxWindowID , Id , wxString , Title , wxPoint , Position , wxSize , Size , long , WindowStyle)
145
146 #else
147 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxTopLevelWindow)
148 #endif
149
150 // ============================================================================
151 // implementation
152 // ============================================================================
153
154 // ----------------------------------------------------------------------------
155 // static class members
156 // ----------------------------------------------------------------------------
157
158 #if wxUSE_STATUSBAR
159 #if wxUSE_NATIVE_STATUSBAR
160 bool wxFrame::m_useNativeStatusBar = TRUE;
161 #else
162 bool wxFrame::m_useNativeStatusBar = FALSE;
163 #endif
164 #endif // wxUSE_NATIVE_STATUSBAR
165
166 // ----------------------------------------------------------------------------
167 // creation/destruction
168 // ----------------------------------------------------------------------------
169
170 void wxFrame::Init()
171 {
172 #if wxUSE_TOOLTIPS
173 m_hwndToolTip = 0;
174 #endif
175
176 // Data to save/restore when calling ShowFullScreen
177 m_fsStatusBarFields = 0;
178 m_fsStatusBarHeight = 0;
179 m_fsToolBarHeight = 0;
180
181 m_wasMinimized = FALSE;
182 }
183
184 bool wxFrame::Create(wxWindow *parent,
185 wxWindowID id,
186 const wxString& title,
187 const wxPoint& pos,
188 const wxSize& size,
189 long style,
190 const wxString& name)
191 {
192 if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
193 return FALSE;
194
195 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
196
197 wxModelessWindows.Append(this);
198
199 return TRUE;
200 }
201
202 wxFrame::~wxFrame()
203 {
204 m_isBeingDeleted = TRUE;
205 DeleteAllBars();
206 }
207
208 // ----------------------------------------------------------------------------
209 // wxFrame client size calculations
210 // ----------------------------------------------------------------------------
211
212 void wxFrame::DoSetClientSize(int width, int height)
213 {
214 // leave enough space for the status bar if we have (and show) it
215 #if wxUSE_STATUSBAR
216 wxStatusBar *statbar = GetStatusBar();
217 if ( statbar && statbar->IsShown() )
218 {
219 height += statbar->GetSize().y;
220 }
221 #endif // wxUSE_STATUSBAR
222
223 // call GetClientAreaOrigin() to take the toolbar into account
224 wxPoint pt = GetClientAreaOrigin();
225 width += pt.x;
226 height += pt.y;
227
228 wxTopLevelWindow::DoSetClientSize(width, height);
229 }
230
231 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
232 void wxFrame::DoGetClientSize(int *x, int *y) const
233 {
234 wxTopLevelWindow::DoGetClientSize(x, y);
235
236 // account for the possible toolbar
237 wxPoint pt = GetClientAreaOrigin();
238 if ( x )
239 *x -= pt.x;
240
241 if ( y )
242 *y -= pt.y;
243
244 #if wxUSE_STATUSBAR
245 // adjust client area height to take the status bar into account
246 if ( y )
247 {
248 wxStatusBar *statbar = GetStatusBar();
249 if ( statbar && statbar->IsShown() )
250 {
251 *y -= statbar->GetClientSize().y;
252 }
253 }
254 #endif // wxUSE_STATUSBAR
255 }
256
257 // ----------------------------------------------------------------------------
258 // wxFrame: various geometry-related functions
259 // ----------------------------------------------------------------------------
260
261 void wxFrame::Raise()
262 {
263 ::SetForegroundWindow(GetHwnd());
264 }
265
266 // generate an artificial resize event
267 void wxFrame::SendSizeEvent()
268 {
269 if ( !m_iconized )
270 {
271 RECT r = wxGetWindowRect(GetHwnd());
272
273 (void)::PostMessage(GetHwnd(), WM_SIZE,
274 IsMaximized() ? SIZE_MAXIMIZED : SIZE_RESTORED,
275 MAKELPARAM(r.right - r.left, r.bottom - r.top));
276 }
277 }
278
279 #if wxUSE_STATUSBAR
280 wxStatusBar *wxFrame::OnCreateStatusBar(int number,
281 long style,
282 wxWindowID id,
283 const wxString& name)
284 {
285 wxStatusBar *statusBar = NULL;
286
287 #if wxUSE_NATIVE_STATUSBAR
288 if ( !UsesNativeStatusBar() )
289 {
290 statusBar = (wxStatusBar *)new wxStatusBarGeneric(this, id, style);
291 }
292 else
293 #endif
294 {
295 statusBar = new wxStatusBar(this, id, style, name);
296 }
297
298 statusBar->SetFieldsCount(number);
299
300 return statusBar;
301 }
302
303 void wxFrame::PositionStatusBar()
304 {
305 if ( !m_frameStatusBar || !m_frameStatusBar->IsShown() )
306 return;
307
308 int w, h;
309 GetClientSize(&w, &h);
310 int sw, sh;
311 m_frameStatusBar->GetSize(&sw, &sh);
312
313 // Since we wish the status bar to be directly under the client area,
314 // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
315 m_frameStatusBar->SetSize(0, h, w, sh);
316 }
317 #endif // wxUSE_STATUSBAR
318
319 #if wxUSE_MENUS_NATIVE
320
321 void wxFrame::AttachMenuBar(wxMenuBar *menubar)
322 {
323 wxFrameBase::AttachMenuBar(menubar);
324
325 if ( !menubar )
326 {
327 // actually remove the menu from the frame
328 m_hMenu = (WXHMENU)0;
329 InternalSetMenuBar();
330 }
331 else // set new non NULL menu bar
332 {
333 #ifndef __WXWINCE__
334 // Can set a menubar several times.
335 if ( menubar->GetHMenu() )
336 {
337 m_hMenu = menubar->GetHMenu();
338 }
339 else // no HMENU yet
340 {
341 m_hMenu = menubar->Create();
342
343 if ( !m_hMenu )
344 {
345 wxFAIL_MSG( _T("failed to create menu bar") );
346 return;
347 }
348 }
349 #endif
350 InternalSetMenuBar();
351 }
352 }
353
354 void wxFrame::InternalSetMenuBar()
355 {
356 #ifdef __WXMICROWIN__
357 // Nothing
358 #elif defined(__WXWINCE__)
359
360 if (!GetToolBar())
361 {
362 wxToolBar* toolBar = new wxToolBar(this, -1,
363 wxDefaultPosition, wxDefaultSize,
364 wxBORDER_NONE | wxTB_HORIZONTAL,
365 wxToolBarNameStr, GetMenuBar());
366 SetToolBar(toolBar);
367 }
368 #else
369 if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
370 {
371 wxLogLastError(wxT("SetMenu"));
372 }
373 #endif
374 }
375
376 #endif // wxUSE_MENUS_NATIVE
377
378 // Responds to colour changes, and passes event on to children.
379 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
380 {
381 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
382 Refresh();
383
384 #if wxUSE_STATUSBAR
385 if ( m_frameStatusBar )
386 {
387 wxSysColourChangedEvent event2;
388 event2.SetEventObject( m_frameStatusBar );
389 m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
390 }
391 #endif // wxUSE_STATUSBAR
392
393 // Propagate the event to the non-top-level children
394 wxWindow::OnSysColourChanged(event);
395 }
396
397 // Pass TRUE to show full screen, FALSE to restore.
398 bool wxFrame::ShowFullScreen(bool show, long style)
399 {
400 if ( IsFullScreen() == show )
401 return FALSE;
402
403 if (show)
404 {
405 #if wxUSE_TOOLBAR
406 #ifdef __WXWINCE__
407 // TODO: hide commandbar
408 #else
409 wxToolBar *theToolBar = GetToolBar();
410 if (theToolBar)
411 theToolBar->GetSize(NULL, &m_fsToolBarHeight);
412
413 // zap the toolbar, menubar, and statusbar
414
415 if ((style & wxFULLSCREEN_NOTOOLBAR) && theToolBar)
416 {
417 theToolBar->SetSize(-1,0);
418 theToolBar->Show(FALSE);
419 }
420 #endif // __WXWINCE__
421 #endif // wxUSE_TOOLBAR
422
423 // TODO: make it work for WinCE
424 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
425 if (style & wxFULLSCREEN_NOMENUBAR)
426 SetMenu((HWND)GetHWND(), (HMENU) NULL);
427 #endif
428
429 #if wxUSE_STATUSBAR
430 wxStatusBar *theStatusBar = GetStatusBar();
431 if (theStatusBar)
432 theStatusBar->GetSize(NULL, &m_fsStatusBarHeight);
433
434 // Save the number of fields in the statusbar
435 if ((style & wxFULLSCREEN_NOSTATUSBAR) && theStatusBar)
436 {
437 //m_fsStatusBarFields = theStatusBar->GetFieldsCount();
438 //SetStatusBar((wxStatusBar*) NULL);
439 //delete theStatusBar;
440 theStatusBar->Show(FALSE);
441 }
442 else
443 m_fsStatusBarFields = 0;
444 #endif // wxUSE_STATUSBAR
445 }
446 else
447 {
448 #if wxUSE_TOOLBAR
449 #ifdef __WXWINCE__
450 // TODO: show commandbar
451 #else
452 wxToolBar *theToolBar = GetToolBar();
453
454 // restore the toolbar, menubar, and statusbar
455 if (theToolBar && (m_fsStyle & wxFULLSCREEN_NOTOOLBAR))
456 {
457 theToolBar->SetSize(-1, m_fsToolBarHeight);
458 theToolBar->Show(TRUE);
459 }
460 #endif // __WXWINCE__
461 #endif // wxUSE_TOOLBAR
462
463 #if wxUSE_STATUSBAR
464 if ( m_fsStyle & wxFULLSCREEN_NOSTATUSBAR )
465 {
466 //CreateStatusBar(m_fsStatusBarFields);
467 if (GetStatusBar())
468 {
469 GetStatusBar()->Show(TRUE);
470 PositionStatusBar();
471 }
472 }
473 #endif // wxUSE_STATUSBAR
474
475 // TODO: make it work for WinCE
476 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
477 if ((m_fsStyle & wxFULLSCREEN_NOMENUBAR) && (m_hMenu != 0))
478 SetMenu((HWND)GetHWND(), (HMENU)m_hMenu);
479 #endif
480 }
481
482 return wxFrameBase::ShowFullScreen(show, style);
483 }
484
485 // ----------------------------------------------------------------------------
486 // tool/status bar stuff
487 // ----------------------------------------------------------------------------
488
489 #if wxUSE_TOOLBAR
490
491 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
492 {
493 #ifdef __WXWINCE__
494 // We may already have a toolbar from calling SetMenuBar.
495 if (GetToolBar())
496 return GetToolBar();
497 #endif
498 if ( wxFrameBase::CreateToolBar(style, id, name) )
499 {
500 PositionToolBar();
501 }
502
503 return m_frameToolBar;
504 }
505
506 void wxFrame::PositionToolBar()
507 {
508 wxToolBar *toolbar = GetToolBar();
509 if ( toolbar && toolbar->IsShown() )
510 {
511 #ifdef __WXWINCE__
512 // We want to do something different in WinCE, because
513 // the toolbar should be associated with the commandbar,
514 // and not an independent window.
515 // TODO
516 #else
517 // don't call our (or even wxTopLevelWindow) version because we want
518 // the real (full) client area size, not excluding the tool/status bar
519 int width, height;
520 wxWindow::DoGetClientSize(&width, &height);
521
522 #if wxUSE_STATUSBAR
523 wxStatusBar *statbar = GetStatusBar();
524 if ( statbar && statbar->IsShown() )
525 {
526 height -= statbar->GetClientSize().y;
527 }
528 #endif // wxUSE_STATUSBAR
529
530 int tx, ty;
531 int tw, th;
532 toolbar->GetPosition(&tx, &ty);
533 toolbar->GetSize(&tw, &th);
534
535 // Adjust
536 if (ty < 0 && (-ty == th))
537 ty = 0;
538 if (tx < 0 && (-tx == tw))
539 tx = 0;
540
541 int desiredW = tw;
542 int desiredH = th;
543
544 if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
545 {
546 desiredH = height;
547 }
548 else
549 {
550 desiredW = width;
551 // if ( toolbar->GetWindowStyleFlag() & wxTB_FLAT )
552 // desiredW -= 3;
553 }
554
555 // use the 'real' MSW position here, don't offset relativly to the
556 // client area origin
557
558 // Optimise such that we don't have to always resize the toolbar
559 // when the frame changes, otherwise we'll get a lot of flicker.
560 bool heightChanging = TRUE;
561 bool widthChanging = TRUE;
562
563 if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
564 {
565 // It's OK if the current height is greater than what can be shown.
566 heightChanging = (desiredH > th) ;
567 widthChanging = (desiredW != tw) ;
568
569 // The next time around, we may not have to set the size
570 if (heightChanging)
571 desiredH = desiredH + 200;
572 }
573 else
574 {
575 // It's OK if the current width is greater than what can be shown.
576 widthChanging = (desiredW > tw) ;
577 heightChanging = (desiredH != th) ;
578
579 // The next time around, we may not have to set the size
580 if (widthChanging)
581 desiredW = desiredW + 200;
582 }
583
584 if (tx != 0 || ty != 0 || widthChanging || heightChanging)
585 toolbar->SetSize(0, 0, desiredW, desiredH, wxSIZE_NO_ADJUSTMENTS);
586
587 #endif // __WXWINCE__
588 }
589 }
590
591 #endif // wxUSE_TOOLBAR
592
593 // ----------------------------------------------------------------------------
594 // frame state (iconized/maximized/...)
595 // ----------------------------------------------------------------------------
596
597 // propagate our state change to all child frames: this allows us to emulate X
598 // Windows behaviour where child frames float independently of the parent one
599 // on the desktop, but are iconized/restored with it
600 void wxFrame::IconizeChildFrames(bool bIconize)
601 {
602 for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
603 node;
604 node = node->GetNext() )
605 {
606 wxWindow *win = node->GetData();
607
608 // iconizing the frames with this style under Win95 shell puts them at
609 // the bottom of the screen (as the MDI children) instead of making
610 // them appear in the taskbar because they are, by virtue of this
611 // style, not managed by the taskbar - instead leave Windows take care
612 // of them
613 #ifdef __WIN95__
614 if ( win->GetWindowStyle() & wxFRAME_TOOL_WINDOW )
615 continue;
616 #endif // Win95
617
618 // the child MDI frames are a special case and should not be touched by
619 // the parent frame - instead, they are managed by the user
620 wxFrame *frame = wxDynamicCast(win, wxFrame);
621 if ( frame
622 #if wxUSE_MDI_ARCHITECTURE
623 && !wxDynamicCast(frame, wxMDIChildFrame)
624 #endif // wxUSE_MDI_ARCHITECTURE
625 )
626 {
627 // we don't want to restore the child frames which had been
628 // iconized even before we were iconized, so save the child frame
629 // status when iconizing the parent frame and check it when
630 // restoring it
631 if ( bIconize )
632 {
633 // note that we shouldn't touch the hidden frames neither
634 // because iconizing/restoring them would show them as a side
635 // effect
636 frame->m_wasMinimized = frame->IsIconized() || !frame->IsShown();
637 }
638
639 // this test works for both iconizing and restoring
640 if ( !frame->m_wasMinimized )
641 frame->Iconize(bIconize);
642 }
643 }
644 }
645
646 WXHICON wxFrame::GetDefaultIcon() const
647 {
648 // we don't have any standard icons (any more)
649 return (WXHICON)0;
650 }
651
652 // ===========================================================================
653 // message processing
654 // ===========================================================================
655
656 // ---------------------------------------------------------------------------
657 // preprocessing
658 // ---------------------------------------------------------------------------
659
660 bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
661 {
662 if ( wxWindow::MSWTranslateMessage(pMsg) )
663 return TRUE;
664
665 #if wxUSE_MENUS && wxUSE_ACCEL && !defined(__WXUNIVERSAL__)
666 // try the menu bar accels
667 wxMenuBar *menuBar = GetMenuBar();
668 if ( !menuBar )
669 return FALSE;
670
671 const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
672 return acceleratorTable.Translate(this, pMsg);
673 #else
674 return FALSE;
675 #endif // wxUSE_MENUS && wxUSE_ACCEL
676 }
677
678 // ---------------------------------------------------------------------------
679 // our private (non virtual) message handlers
680 // ---------------------------------------------------------------------------
681
682 bool wxFrame::HandlePaint()
683 {
684 RECT rect;
685 if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
686 {
687 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
688 if ( m_iconized )
689 {
690 const wxIcon& icon = GetIcon();
691 HICON hIcon = icon.Ok() ? GetHiconOf(icon)
692 : (HICON)GetDefaultIcon();
693
694 // Hold a pointer to the dc so long as the OnPaint() message
695 // is being processed
696 PAINTSTRUCT ps;
697 HDC hdc = ::BeginPaint(GetHwnd(), &ps);
698
699 // Erase background before painting or we get white background
700 MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
701
702 if ( hIcon )
703 {
704 RECT rect;
705 ::GetClientRect(GetHwnd(), &rect);
706
707 // FIXME: why hardcoded?
708 static const int icon_width = 32;
709 static const int icon_height = 32;
710
711 int icon_x = (int)((rect.right - icon_width)/2);
712 int icon_y = (int)((rect.bottom - icon_height)/2);
713
714 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
715 }
716
717 ::EndPaint(GetHwnd(), &ps);
718
719 return TRUE;
720 }
721 else
722 #endif
723 {
724 return wxWindow::HandlePaint();
725 }
726 }
727 else
728 {
729 // nothing to paint - processed
730 return TRUE;
731 }
732 }
733
734 bool wxFrame::HandleSize(int x, int y, WXUINT id)
735 {
736 bool processed = FALSE;
737 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
738
739 switch ( id )
740 {
741 case SIZENORMAL:
742 // only do it it if we were iconized before, otherwise resizing the
743 // parent frame has a curious side effect of bringing it under it's
744 // children
745 if ( !m_iconized )
746 break;
747
748 // restore all child frames too
749 IconizeChildFrames(FALSE);
750
751 (void)SendIconizeEvent(FALSE);
752
753 // fall through
754
755 case SIZEFULLSCREEN:
756 m_iconized = FALSE;
757 break;
758
759 case SIZEICONIC:
760 // iconize all child frames too
761 IconizeChildFrames(TRUE);
762
763 (void)SendIconizeEvent();
764
765 m_iconized = TRUE;
766 break;
767 }
768 #endif
769
770 if ( !m_iconized )
771 {
772 #if wxUSE_STATUSBAR
773 PositionStatusBar();
774 #endif // wxUSE_STATUSBAR
775
776 #if wxUSE_TOOLBAR
777 PositionToolBar();
778 #endif // wxUSE_TOOLBAR
779
780 processed = wxWindow::HandleSize(x, y, id);
781 }
782
783 return processed;
784 }
785
786 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
787 {
788 if ( control )
789 {
790 // In case it's e.g. a toolbar.
791 wxWindow *win = wxFindWinFromHandle(control);
792 if ( win )
793 return win->MSWCommand(cmd, id);
794 }
795
796 // handle here commands from menus and accelerators
797 if ( cmd == 0 || cmd == 1 )
798 {
799 #if wxUSE_MENUS_NATIVE
800 if ( wxCurrentPopupMenu )
801 {
802 wxMenu *popupMenu = wxCurrentPopupMenu;
803 wxCurrentPopupMenu = NULL;
804
805 return popupMenu->MSWCommand(cmd, id);
806 }
807 #endif // wxUSE_MENUS_NATIVE
808
809 if ( ProcessCommand(id) )
810 {
811 return TRUE;
812 }
813 }
814
815 return FALSE;
816 }
817
818 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD flags, WXHMENU hMenu)
819 {
820 int item;
821 if ( flags == 0xFFFF && hMenu == 0 )
822 {
823 // menu was removed from screen
824 item = -1;
825 }
826 #ifndef __WXMICROWIN__
827 else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
828 {
829 item = nItem;
830 }
831 #endif
832 else
833 {
834 // don't give hints for separators (doesn't make sense) nor for the
835 // items opening popup menus (they don't have them anyhow) but do clear
836 // the status line - otherwise, we would be left with the help message
837 // for the previous item which doesn't apply any more
838 DoGiveHelp(wxEmptyString, FALSE);
839
840 return FALSE;
841 }
842
843 wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
844 event.SetEventObject(this);
845
846 return GetEventHandler()->ProcessEvent(event);
847 }
848
849 bool wxFrame::HandleMenuLoop(const wxEventType& evtType, WXWORD isPopup)
850 {
851 // we don't have the menu id here, so we use the id to specify if the event
852 // was from a popup menu or a normal one
853 wxMenuEvent event(evtType, isPopup ? -1 : 0);
854 event.SetEventObject(this);
855
856 return GetEventHandler()->ProcessEvent(event);
857 }
858
859 // ---------------------------------------------------------------------------
860 // the window proc for wxFrame
861 // ---------------------------------------------------------------------------
862
863 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
864 {
865 long rc = 0;
866 bool processed = FALSE;
867
868 switch ( message )
869 {
870 case WM_CLOSE:
871 // if we can't close, tell the system that we processed the
872 // message - otherwise it would close us
873 processed = !Close();
874 break;
875
876 case WM_SIZE:
877 processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
878 break;
879
880 case WM_COMMAND:
881 {
882 WORD id, cmd;
883 WXHWND hwnd;
884 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
885 &id, &hwnd, &cmd);
886
887 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
888 }
889 break;
890
891 case WM_PAINT:
892 processed = HandlePaint();
893 break;
894
895 case WM_INITMENUPOPUP:
896 processed = HandleInitMenuPopup((WXHMENU) wParam);
897 break;
898
899 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
900 case WM_MENUSELECT:
901 {
902 WXWORD item, flags;
903 WXHMENU hmenu;
904 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
905
906 processed = HandleMenuSelect(item, flags, hmenu);
907 }
908 break;
909
910 case WM_EXITMENULOOP:
911 processed = HandleMenuLoop(wxEVT_MENU_CLOSE, wParam);
912 break;
913
914 case WM_QUERYDRAGICON:
915 {
916 const wxIcon& icon = GetIcon();
917 HICON hIcon = icon.Ok() ? GetHiconOf(icon)
918 : (HICON)GetDefaultIcon();
919 rc = (long)hIcon;
920 processed = rc != 0;
921 }
922 break;
923 #endif // !__WXMICROWIN__
924 }
925
926 if ( !processed )
927 rc = wxFrameBase::MSWWindowProc(message, wParam, lParam);
928
929 return rc;
930 }
931
932 // handle WM_INITMENUPOPUP message
933 bool wxFrame::HandleInitMenuPopup(WXHMENU hMenu)
934 {
935 wxMenu* menu = NULL;
936 if (GetMenuBar())
937 {
938 int nCount = GetMenuBar()->GetMenuCount();
939 for (int n = 0; n < nCount; n++)
940 {
941 if (GetMenuBar()->GetMenu(n)->GetHMenu() == hMenu)
942 {
943 menu = GetMenuBar()->GetMenu(n);
944 break;
945 }
946 }
947 }
948
949 wxMenuEvent event(wxEVT_MENU_OPEN, 0, menu);
950 event.SetEventObject(this);
951
952 return GetEventHandler()->ProcessEvent(event);
953 }