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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/framecmn.cpp
3 // Purpose: common (for all platforms) wxFrame functions
4 // Author: Julian Smart, Vadim Zeitlin
5 // Created: 01/02/97
6 // Id: $Id$
7 // Copyright: (c) 1998 Robert Roebling and Julian Smart
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // ============================================================================
12 // declarations
13 // ============================================================================
14
15 // ----------------------------------------------------------------------------
16 // headers
17 // ----------------------------------------------------------------------------
18
19 // For compilers that support precompilation, includes "wx.h".
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #include "wx/frame.h"
27
28 #ifndef WX_PRECOMP
29 #include "wx/menu.h"
30 #include "wx/menuitem.h"
31 #include "wx/dcclient.h"
32 #include "wx/toolbar.h"
33 #include "wx/statusbr.h"
34 #endif // WX_PRECOMP
35
36 extern WXDLLEXPORT_DATA(const char) wxFrameNameStr[] = "frame";
37 extern WXDLLEXPORT_DATA(const char) wxStatusLineNameStr[] = "status_line";
38
39 // ----------------------------------------------------------------------------
40 // event table
41 // ----------------------------------------------------------------------------
42
43 #if wxUSE_MENUS && wxUSE_STATUSBAR
44
45 BEGIN_EVENT_TABLE(wxFrameBase, wxTopLevelWindow)
46 EVT_MENU_OPEN(wxFrameBase::OnMenuOpen)
47 EVT_MENU_CLOSE(wxFrameBase::OnMenuClose)
48
49 EVT_MENU_HIGHLIGHT_ALL(wxFrameBase::OnMenuHighlight)
50 END_EVENT_TABLE()
51
52 #endif // wxUSE_MENUS && wxUSE_STATUSBAR
53
54 // ============================================================================
55 // implementation
56 // ============================================================================
57
58 // ----------------------------------------------------------------------------
59 // XTI
60 // ----------------------------------------------------------------------------
61
62 wxDEFINE_FLAGS( wxFrameStyle )
63 wxBEGIN_FLAGS( wxFrameStyle )
64 // new style border flags, we put them first to
65 // use them for streaming out
66 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
67 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
68 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
69 wxFLAGS_MEMBER(wxBORDER_RAISED)
70 wxFLAGS_MEMBER(wxBORDER_STATIC)
71 wxFLAGS_MEMBER(wxBORDER_NONE)
72
73 // old style border flags
74 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
75 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
76 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
77 wxFLAGS_MEMBER(wxRAISED_BORDER)
78 wxFLAGS_MEMBER(wxSTATIC_BORDER)
79 wxFLAGS_MEMBER(wxBORDER)
80
81 // standard window styles
82 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
83 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
84 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
85 wxFLAGS_MEMBER(wxWANTS_CHARS)
86 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
87 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
88 wxFLAGS_MEMBER(wxVSCROLL)
89 wxFLAGS_MEMBER(wxHSCROLL)
90
91 // frame styles
92 wxFLAGS_MEMBER(wxSTAY_ON_TOP)
93 wxFLAGS_MEMBER(wxCAPTION)
94 #if WXWIN_COMPATIBILITY_2_6
95 wxFLAGS_MEMBER(wxTHICK_FRAME)
96 #endif // WXWIN_COMPATIBILITY_2_6
97 wxFLAGS_MEMBER(wxSYSTEM_MENU)
98 wxFLAGS_MEMBER(wxRESIZE_BORDER)
99 #if WXWIN_COMPATIBILITY_2_6
100 wxFLAGS_MEMBER(wxRESIZE_BOX)
101 #endif // WXWIN_COMPATIBILITY_2_6
102 wxFLAGS_MEMBER(wxCLOSE_BOX)
103 wxFLAGS_MEMBER(wxMAXIMIZE_BOX)
104 wxFLAGS_MEMBER(wxMINIMIZE_BOX)
105
106 wxFLAGS_MEMBER(wxFRAME_TOOL_WINDOW)
107 wxFLAGS_MEMBER(wxFRAME_FLOAT_ON_PARENT)
108
109 wxFLAGS_MEMBER(wxFRAME_SHAPED)
110 wxEND_FLAGS( wxFrameStyle )
111
112 wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxFrame, wxTopLevelWindow, "wx/frame.h")
113
114 wxBEGIN_PROPERTIES_TABLE(wxFrame)
115 wxEVENT_PROPERTY( Menu, wxEVT_COMMAND_MENU_SELECTED, wxCommandEvent)
116
117 wxPROPERTY( Title,wxString, SetTitle, GetTitle, wxString(), 0 /*flags*/, \
118 wxT("Helpstring"), wxT("group"))
119 wxPROPERTY_FLAGS( WindowStyle, wxFrameStyle, long, SetWindowStyleFlag, \
120 GetWindowStyleFlag, wxEMPTY_PARAMETER_VALUE, 0 /*flags*/, \
121 wxT("Helpstring"), wxT("group")) // style
122 wxPROPERTY( MenuBar, wxMenuBar *, SetMenuBar, GetMenuBar, wxEMPTY_PARAMETER_VALUE, \
123 0 /*flags*/, wxT("Helpstring"), wxT("group"))
124 wxEND_PROPERTIES_TABLE()
125
126 wxEMPTY_HANDLERS_TABLE(wxFrame)
127
128 wxCONSTRUCTOR_6( wxFrame, wxWindow*, Parent, wxWindowID, Id, wxString, Title, \
129 wxPoint, Position, wxSize, Size, long, WindowStyle)
130
131 // ----------------------------------------------------------------------------
132 // construction/destruction
133 // ----------------------------------------------------------------------------
134
135 wxFrameBase::wxFrameBase()
136 {
137 #if wxUSE_MENUS
138 m_frameMenuBar = NULL;
139 #endif // wxUSE_MENUS
140
141 #if wxUSE_TOOLBAR
142 m_frameToolBar = NULL;
143 #endif // wxUSE_TOOLBAR
144
145 #if wxUSE_STATUSBAR
146 m_frameStatusBar = NULL;
147 #endif // wxUSE_STATUSBAR
148
149 m_statusBarPane = 0;
150 }
151
152 wxFrameBase::~wxFrameBase()
153 {
154 // this destructor is required for Darwin
155 }
156
157 wxFrame *wxFrameBase::New(wxWindow *parent,
158 wxWindowID id,
159 const wxString& title,
160 const wxPoint& pos,
161 const wxSize& size,
162 long style,
163 const wxString& name)
164 {
165 return new wxFrame(parent, id, title, pos, size, style, name);
166 }
167
168 void wxFrameBase::DeleteAllBars()
169 {
170 #if wxUSE_MENUS
171 wxDELETE(m_frameMenuBar);
172 #endif // wxUSE_MENUS
173
174 #if wxUSE_STATUSBAR
175 wxDELETE(m_frameStatusBar);
176 #endif // wxUSE_STATUSBAR
177
178 #if wxUSE_TOOLBAR
179 wxDELETE(m_frameToolBar);
180 #endif // wxUSE_TOOLBAR
181 }
182
183 bool wxFrameBase::IsOneOfBars(const wxWindow *win) const
184 {
185 #if wxUSE_MENUS
186 if ( win == GetMenuBar() )
187 return true;
188 #endif // wxUSE_MENUS
189
190 #if wxUSE_STATUSBAR
191 if ( win == GetStatusBar() )
192 return true;
193 #endif // wxUSE_STATUSBAR
194
195 #if wxUSE_TOOLBAR
196 if ( win == GetToolBar() )
197 return true;
198 #endif // wxUSE_TOOLBAR
199
200 wxUnusedVar(win);
201
202 return false;
203 }
204
205 // ----------------------------------------------------------------------------
206 // wxFrame size management: we exclude the areas taken by menu/status/toolbars
207 // from the client area, so the client area is what's really available for the
208 // frame contents
209 // ----------------------------------------------------------------------------
210
211 // get the origin of the client area in the client coordinates
212 wxPoint wxFrameBase::GetClientAreaOrigin() const
213 {
214 wxPoint pt = wxTopLevelWindow::GetClientAreaOrigin();
215
216 #if wxUSE_TOOLBAR && !defined(__WXUNIVERSAL__)
217 wxToolBar *toolbar = GetToolBar();
218 if ( toolbar && toolbar->IsShown() )
219 {
220 int w, h;
221 toolbar->GetSize(&w, &h);
222
223 if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
224 {
225 pt.x += w;
226 }
227 else
228 {
229 pt.y += h;
230 }
231 }
232 #endif // wxUSE_TOOLBAR
233
234 return pt;
235 }
236
237 // ----------------------------------------------------------------------------
238 // misc
239 // ----------------------------------------------------------------------------
240
241 #if wxUSE_MENUS
242
243 bool wxFrameBase::ProcessCommand(int id)
244 {
245 wxMenuItem* const item = FindItemInMenuBar(id);
246 if ( !item )
247 return false;
248
249 return ProcessCommand(item);
250 }
251
252 bool wxFrameBase::ProcessCommand(wxMenuItem *item)
253 {
254 wxCHECK_MSG( item, false, wxS("Menu item can't be NULL") );
255
256 if (!item->IsEnabled())
257 return true;
258
259 if ((item->GetKind() == wxITEM_RADIO) && item->IsChecked() )
260 return true;
261
262 int checked;
263 if (item->IsCheckable())
264 {
265 item->Toggle();
266
267 // use the new value
268 checked = item->IsChecked();
269 }
270 else // Uncheckable item.
271 {
272 checked = -1;
273 }
274
275 wxMenu* const menu = item->GetMenu();
276 wxCHECK_MSG( menu, false, wxS("Menu item should be attached to a menu") );
277
278 return menu->SendEvent(item->GetId(), checked);
279 }
280
281 #endif // wxUSE_MENUS
282
283 // Do the UI update processing for this window. This is
284 // provided for the application to call if it wants to
285 // force a UI update, particularly for the menus and toolbar.
286 void wxFrameBase::UpdateWindowUI(long flags)
287 {
288 wxWindowBase::UpdateWindowUI(flags);
289
290 #if wxUSE_TOOLBAR
291 if (GetToolBar())
292 GetToolBar()->UpdateWindowUI(flags);
293 #endif
294
295 #if wxUSE_MENUS
296 if (GetMenuBar())
297 {
298 // If coming from an idle event, we only want to update the menus if
299 // we're in the wxUSE_IDLEMENUUPDATES configuration, otherwise they
300 // will be update when the menu is opened later
301 #if !wxUSE_IDLEMENUUPDATES
302 if ( !(flags & wxUPDATE_UI_FROMIDLE) )
303 #endif // wxUSE_IDLEMENUUPDATES
304 DoMenuUpdates();
305 }
306 #endif // wxUSE_MENUS
307 }
308
309 // ----------------------------------------------------------------------------
310 // event handlers for status bar updates from menus
311 // ----------------------------------------------------------------------------
312
313 #if wxUSE_MENUS && wxUSE_STATUSBAR
314
315 void wxFrameBase::OnMenuHighlight(wxMenuEvent& event)
316 {
317 #if wxUSE_STATUSBAR
318 (void)ShowMenuHelp(event.GetMenuId());
319 #endif // wxUSE_STATUSBAR
320 }
321
322 void wxFrameBase::OnMenuOpen(wxMenuEvent& event)
323 {
324 #if wxUSE_IDLEMENUUPDATES
325 wxUnusedVar(event);
326 #else // !wxUSE_IDLEMENUUPDATES
327 // as we didn't update the menus from idle time, do it now
328 DoMenuUpdates(event.GetMenu());
329 #endif // wxUSE_IDLEMENUUPDATES/!wxUSE_IDLEMENUUPDATES
330 }
331
332 void wxFrameBase::OnMenuClose(wxMenuEvent& WXUNUSED(event))
333 {
334 DoGiveHelp(wxEmptyString, false);
335 }
336
337 #endif // wxUSE_MENUS && wxUSE_STATUSBAR
338
339 // Implement internal behaviour (menu updating on some platforms)
340 void wxFrameBase::OnInternalIdle()
341 {
342 wxTopLevelWindow::OnInternalIdle();
343
344 #if wxUSE_MENUS && wxUSE_IDLEMENUUPDATES
345 if (wxUpdateUIEvent::CanUpdate(this))
346 DoMenuUpdates();
347 #endif
348 }
349
350 // ----------------------------------------------------------------------------
351 // status bar stuff
352 // ----------------------------------------------------------------------------
353
354 #if wxUSE_STATUSBAR
355
356 wxStatusBar* wxFrameBase::CreateStatusBar(int number,
357 long style,
358 wxWindowID id,
359 const wxString& name)
360 {
361 // the main status bar can only be created once (or else it should be
362 // deleted before calling CreateStatusBar() again)
363 wxCHECK_MSG( !m_frameStatusBar, NULL,
364 wxT("recreating status bar in wxFrame") );
365
366 SetStatusBar(OnCreateStatusBar(number, style, id, name));
367
368 return m_frameStatusBar;
369 }
370
371 wxStatusBar *wxFrameBase::OnCreateStatusBar(int number,
372 long style,
373 wxWindowID id,
374 const wxString& name)
375 {
376 wxStatusBar *statusBar = new wxStatusBar(this, id, style, name);
377
378 statusBar->SetFieldsCount(number);
379
380 return statusBar;
381 }
382
383 void wxFrameBase::SetStatusText(const wxString& text, int number)
384 {
385 wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set text for") );
386
387 m_frameStatusBar->SetStatusText(text, number);
388 }
389
390 void wxFrameBase::SetStatusWidths(int n, const int widths_field[] )
391 {
392 wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set widths for") );
393
394 m_frameStatusBar->SetStatusWidths(n, widths_field);
395
396 PositionStatusBar();
397 }
398
399 void wxFrameBase::PushStatusText(const wxString& text, int number)
400 {
401 wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set text for") );
402
403 m_frameStatusBar->PushStatusText(text, number);
404 }
405
406 void wxFrameBase::PopStatusText(int number)
407 {
408 wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set text for") );
409
410 m_frameStatusBar->PopStatusText(number);
411 }
412
413 bool wxFrameBase::ShowMenuHelp(int menuId)
414 {
415 #if wxUSE_MENUS
416 // if no help string found, we will clear the status bar text
417 //
418 // NB: wxID_NONE is used for (sub)menus themselves by wxMSW
419 wxString helpString;
420 if ( menuId != wxID_SEPARATOR && menuId != wxID_NONE )
421 {
422 const wxMenuItem * const item = FindItemInMenuBar(menuId);
423 if ( item && !item->IsSeparator() )
424 helpString = item->GetHelp();
425
426 // notice that it's ok if we don't find the item because it might
427 // belong to the popup menu, so don't assert here
428 }
429
430 DoGiveHelp(helpString, true);
431
432 return !helpString.empty();
433 #else // !wxUSE_MENUS
434 return false;
435 #endif // wxUSE_MENUS/!wxUSE_MENUS
436 }
437
438 void wxFrameBase::SetStatusBar(wxStatusBar *statBar)
439 {
440 bool hadBar = m_frameStatusBar != NULL;
441 m_frameStatusBar = statBar;
442
443 if ( (m_frameStatusBar != NULL) != hadBar )
444 {
445 PositionStatusBar();
446
447 DoLayout();
448 }
449 }
450
451 #endif // wxUSE_STATUSBAR
452
453 #if wxUSE_MENUS || wxUSE_TOOLBAR
454 void wxFrameBase::DoGiveHelp(const wxString& help, bool show)
455 {
456 #if wxUSE_STATUSBAR
457 if ( m_statusBarPane < 0 )
458 {
459 // status bar messages disabled
460 return;
461 }
462
463 wxStatusBar *statbar = GetStatusBar();
464 if ( !statbar )
465 return;
466
467 wxString text;
468 if ( show )
469 {
470 // remember the old status bar text if this is the first time we're
471 // called since the menu has been opened as we're going to overwrite it
472 // in our DoGiveHelp() and we want to restore it when the menu is
473 // closed
474 //
475 // note that it would be logical to do this in OnMenuOpen() but under
476 // MSW we get an EVT_MENU_HIGHLIGHT before EVT_MENU_OPEN, strangely
477 // enough, and so this doesn't work and instead we use the ugly trick
478 // with using special m_oldStatusText value as "menu opened" (but it is
479 // arguably better than adding yet another member variable to wxFrame
480 // on all platforms)
481 if ( m_oldStatusText.empty() )
482 {
483 m_oldStatusText = statbar->GetStatusText(m_statusBarPane);
484 if ( m_oldStatusText.empty() )
485 {
486 // use special value to prevent us from doing this the next time
487 m_oldStatusText += wxT('\0');
488 }
489 }
490
491 m_lastHelpShown =
492 text = help;
493 }
494 else // hide help, restore the original text
495 {
496 // clear the last shown help string but remember its value
497 wxString lastHelpShown;
498 lastHelpShown.swap(m_lastHelpShown);
499
500 // also clear the old status text but remember it too to restore it
501 // below
502 text.swap(m_oldStatusText);
503
504 if ( statbar->GetStatusText(m_statusBarPane) != lastHelpShown )
505 {
506 // if the text was changed with an explicit SetStatusText() call
507 // from the user code in the meanwhile, do not overwrite it with
508 // the old status bar contents -- this is almost certainly not what
509 // the user expects and would be very hard to avoid from user code
510 return;
511 }
512 }
513
514 statbar->SetStatusText(text, m_statusBarPane);
515 #else
516 wxUnusedVar(help);
517 wxUnusedVar(show);
518 #endif // wxUSE_STATUSBAR
519 }
520 #endif // wxUSE_MENUS || wxUSE_TOOLBAR
521
522
523 // ----------------------------------------------------------------------------
524 // toolbar stuff
525 // ----------------------------------------------------------------------------
526
527 #if wxUSE_TOOLBAR
528
529 wxToolBar* wxFrameBase::CreateToolBar(long style,
530 wxWindowID id,
531 const wxString& name)
532 {
533 // the main toolbar can't be recreated (unless it was explicitly deleted
534 // before)
535 wxCHECK_MSG( !m_frameToolBar, NULL,
536 wxT("recreating toolbar in wxFrame") );
537
538 if ( style == -1 )
539 {
540 // use default style
541 //
542 // NB: we don't specify the default value in the method declaration
543 // because
544 // a) this allows us to have different defaults for different
545 // platforms (even if we don't have them right now)
546 // b) we don't need to include wx/toolbar.h in the header then
547 style = wxBORDER_NONE | wxTB_HORIZONTAL | wxTB_FLAT;
548 }
549
550 SetToolBar(OnCreateToolBar(style, id, name));
551
552 return m_frameToolBar;
553 }
554
555 wxToolBar* wxFrameBase::OnCreateToolBar(long style,
556 wxWindowID id,
557 const wxString& name)
558 {
559 #if defined(__WXWINCE__) && defined(__POCKETPC__)
560 return new wxToolMenuBar(this, id,
561 wxDefaultPosition, wxDefaultSize,
562 style, name);
563 #else
564 return new wxToolBar(this, id,
565 wxDefaultPosition, wxDefaultSize,
566 style, name);
567 #endif
568 }
569
570 void wxFrameBase::SetToolBar(wxToolBar *toolbar)
571 {
572 if ( (toolbar != NULL) != (m_frameToolBar != NULL) )
573 {
574 // the toolbar visibility must have changed so we need to both position
575 // the toolbar itself (if it appeared) and to relayout the frame
576 // contents in any case
577
578 if ( toolbar )
579 {
580 // we need to assign it to m_frameToolBar for PositionToolBar() to
581 // do anything
582 m_frameToolBar = toolbar;
583 PositionToolBar();
584 }
585 //else: tricky: do not reset m_frameToolBar yet as otherwise DoLayout()
586 // wouldn't recognize the (still existing) toolbar as one of our
587 // bars and wouldn't layout the single child of the frame correctly
588
589
590 // and this is even more tricky: we want DoLayout() to recognize the
591 // old toolbar for the purpose of not counting it among our non-bar
592 // children but we don't want to reserve any more space for it so we
593 // temporarily hide it
594 if ( m_frameToolBar )
595 m_frameToolBar->Hide();
596
597 DoLayout();
598
599 if ( m_frameToolBar )
600 m_frameToolBar->Show();
601 }
602
603 // this might have been already done above but it's simpler to just always
604 // do it unconditionally instead of testing for whether we already did it
605 m_frameToolBar = toolbar;
606 }
607
608 #endif // wxUSE_TOOLBAR
609
610 // ----------------------------------------------------------------------------
611 // menus
612 // ----------------------------------------------------------------------------
613
614 #if wxUSE_MENUS
615
616 // update all menus
617 void wxFrameBase::DoMenuUpdates(wxMenu* menu)
618 {
619 if (menu)
620 {
621 wxEvtHandler* source = GetEventHandler();
622 menu->UpdateUI(source);
623 }
624 else
625 {
626 wxMenuBar* bar = GetMenuBar();
627 if (bar != NULL)
628 bar->UpdateMenus();
629 }
630 }
631
632 void wxFrameBase::DetachMenuBar()
633 {
634 if ( m_frameMenuBar )
635 {
636 m_frameMenuBar->Detach();
637 m_frameMenuBar = NULL;
638 }
639 }
640
641 void wxFrameBase::AttachMenuBar(wxMenuBar *menubar)
642 {
643 if ( menubar )
644 {
645 menubar->Attach((wxFrame *)this);
646 m_frameMenuBar = menubar;
647 }
648 }
649
650 void wxFrameBase::SetMenuBar(wxMenuBar *menubar)
651 {
652 if ( menubar == GetMenuBar() )
653 {
654 // nothing to do
655 return;
656 }
657
658 DetachMenuBar();
659
660 this->AttachMenuBar(menubar);
661 }
662
663 wxMenuItem *wxFrameBase::FindItemInMenuBar(int menuId) const
664 {
665 const wxMenuBar * const menuBar = GetMenuBar();
666
667 return menuBar ? menuBar->FindItem(menuId) : NULL;
668 }
669
670 #endif // wxUSE_MENUS