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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: menu.cpp
3 // Purpose: wxMenu, wxMenuBar, wxMenuItem
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12
13 // ============================================================================
14 // declarations
15 // ============================================================================
16
17 #ifdef __GNUG__
18 #pragma implementation "menu.h"
19 #endif
20
21 // ----------------------------------------------------------------------------
22 // headers
23 // ----------------------------------------------------------------------------
24
25 #include "wx/defs.h"
26
27 #include "wx/menu.h"
28 #include "wx/menuitem.h"
29 #include "wx/log.h"
30 #include "wx/utils.h"
31 #include "wx/app.h"
32 #include "wx/frame.h"
33 #include "wx/settings.h"
34
35 #ifdef __VMS__
36 #pragma message disable nosimpint
37 #define XtDisplay XTDISPLAY
38 #define XtWindow XTWINDOW
39 #endif
40 #include <Xm/Label.h>
41 #include <Xm/LabelG.h>
42 #include <Xm/CascadeBG.h>
43 #include <Xm/CascadeB.h>
44 #include <Xm/SeparatoG.h>
45 #include <Xm/PushBG.h>
46 #include <Xm/ToggleB.h>
47 #include <Xm/ToggleBG.h>
48 #include <Xm/RowColumn.h>
49 #ifdef __VMS__
50 #pragma message enable nosimpint
51 #endif
52
53 #include "wx/motif/private.h"
54
55 // other standard headers
56 #include <string.h>
57
58 IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
59 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxEvtHandler)
60
61 // ============================================================================
62 // implementation
63 // ============================================================================
64
65 // ----------------------------------------------------------------------------
66 // Menus
67 // ----------------------------------------------------------------------------
68
69 // Construct a menu with optional title (then use append)
70 void wxMenu::Init()
71 {
72 // Motif-specific members
73 m_numColumns = 1;
74 m_menuWidget = (WXWidget) NULL;
75 m_popupShell = (WXWidget) NULL;
76 m_buttonWidget = (WXWidget) NULL;
77 m_menuId = 0;
78 m_topLevelMenu = (wxMenu*) NULL;
79 m_ownedByMenuBar = FALSE;
80
81 if ( !!m_title )
82 {
83 Append(wxID_SEPARATOR, m_title) ;
84 AppendSeparator() ;
85 }
86
87 m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_MENU);
88 m_foregroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUTEXT);
89 m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
90 }
91
92 // The wxWindow destructor will take care of deleting the submenus.
93 wxMenu::~wxMenu()
94 {
95 if (m_menuWidget)
96 {
97 if (m_menuParent)
98 DestroyMenu(TRUE);
99 else
100 DestroyMenu(FALSE);
101 }
102
103 // Not sure if this is right
104 if (m_menuParent && m_menuBar)
105 {
106 m_menuParent = NULL;
107 // m_menuBar = NULL;
108 }
109 }
110
111 void wxMenu::Break()
112 {
113 m_numColumns++;
114 }
115
116 // function appends a new item or submenu to the menu
117 bool wxMenu::DoAppend(wxMenuItem *pItem)
118 {
119 if (m_menuWidget)
120 {
121 // this is a dynamic Append
122 pItem->CreateItem(m_menuWidget, m_menuBar, m_topLevelMenu);
123 }
124
125 if ( pItem->IsSubMenu() )
126 {
127 pItem->GetSubMenu()->m_topLevelMenu = m_topLevelMenu;
128 }
129
130 return wxMenuBase::DoAppend(pItem);
131 }
132
133 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
134 {
135 item->DestroyItem(TRUE);
136
137 return wxMenuBase::DoRemove(item);
138 }
139
140 bool wxMenu::DoInsert(size_t pos, wxMenuItem *item)
141 {
142 if ( !wxMenuBase::DoInsert(pos, item) )
143 return FALSE;
144
145 wxFAIL_MSG(wxT("not implemented"));
146
147 return FALSE;
148 }
149
150 void wxMenu::SetTitle(const wxString& label)
151 {
152 m_title = label;
153
154 wxMenuItemList::Node *node = GetMenuItems().GetFirst();
155 if ( !node )
156 return;
157
158 wxMenuItem *item = node->GetData ();
159 Widget widget = (Widget) item->GetButtonWidget();
160 if ( !widget )
161 return;
162
163 wxXmString title_str(label);
164 XtVaSetValues(widget,
165 XmNlabelString, title_str(),
166 NULL);
167 }
168
169 bool wxMenu::ProcessCommand(wxCommandEvent & event)
170 {
171 bool processed = FALSE;
172
173 #if wxUSE_MENU_CALLBACK
174 // Try a callback
175 if (m_callback)
176 {
177 (void) (*(m_callback)) (*this, event);
178 processed = TRUE;
179 }
180 #endif // wxUSE_MENU_CALLBACK
181
182 // Try the menu's event handler
183 if ( !processed && GetEventHandler())
184 {
185 processed = GetEventHandler()->ProcessEvent(event);
186 }
187 // Try the window the menu was popped up from (and up
188 // through the hierarchy)
189 if ( !processed && GetInvokingWindow())
190 processed = GetInvokingWindow()->ProcessEvent(event);
191
192 return processed;
193 }
194
195 // ----------------------------------------------------------------------------
196 // Menu Bar
197 // ----------------------------------------------------------------------------
198
199 void wxMenuBar::Init()
200 {
201 m_eventHandler = this;
202 m_menuBarFrame = NULL;
203 m_mainWidget = (WXWidget) NULL;
204 m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_MENU);
205 m_foregroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUTEXT);
206 m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
207 }
208
209 wxMenuBar::wxMenuBar(int n, wxMenu *menus[], const wxString titles[])
210 {
211 Init();
212
213 for ( int i = 0; i < n; i++ )
214 {
215 m_menus.Append(menus[i]);
216 m_titles.Add(titles[i]);
217 }
218 }
219
220 wxMenuBar::~wxMenuBar()
221 {
222 // nothing to do: wxMenuBarBase will delete the menus
223 }
224
225 void wxMenuBar::EnableTop(size_t WXUNUSED(pos), bool WXUNUSED(flag))
226 {
227 // wxFAIL_MSG("TODO");
228 // wxLogWarning("wxMenuBar::EnableTop not yet implemented.");
229 }
230
231 void wxMenuBar::SetLabelTop(size_t pos, const wxString& label)
232 {
233 wxMenu *menu = GetMenu(pos);
234 if ( !menu )
235 return;
236
237 Widget w = (Widget)menu->GetButtonWidget();
238 if (w)
239 {
240 wxXmString label_str(label);
241
242 XtVaSetValues(w,
243 XmNlabelString, label_str(),
244 NULL);
245 }
246 }
247
248 wxString wxMenuBar::GetLabelTop(size_t pos) const
249 {
250 wxString str;
251
252 wxMenu *menu = GetMenu(pos);
253 if ( menu )
254 {
255 Widget w = (Widget)menu->GetButtonWidget();
256 if (w)
257 {
258 XmString text;
259 XtVaGetValues(w,
260 XmNlabelString, &text,
261 NULL);
262
263 char *s;
264 if ( XmStringGetLtoR(text, XmSTRING_DEFAULT_CHARSET, &s) )
265 {
266 str = s;
267
268 XtFree(s);
269 }
270 }
271 }
272
273 return str;
274 }
275
276 bool wxMenuBar::Append(wxMenu * menu, const wxString& title)
277 {
278 wxCHECK_MSG( menu, FALSE, wxT("invalid menu") );
279 wxCHECK_MSG( !menu->GetParent() && !menu->GetButtonWidget(), FALSE,
280 wxT("menu already appended") );
281
282 if ( m_menuBarFrame )
283 {
284 WXWidget w = menu->CreateMenu(this, GetMainWidget(), menu, title, TRUE);
285 wxCHECK_MSG( w, FALSE, wxT("failed to create menu") );
286 menu->SetButtonWidget(w);
287 }
288
289 //menu->SetMenuBar(this);
290
291 m_titles.Add(title);
292
293 return wxMenuBarBase::Append(menu, title);
294 }
295
296 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
297 {
298 if ( !wxMenuBarBase::Insert(pos, menu, title) )
299 return FALSE;
300
301 wxFAIL_MSG(wxT("TODO"));
302
303 return FALSE;
304 }
305
306 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
307 {
308 if ( !wxMenuBarBase::Replace(pos, menu, title) )
309 return NULL;
310
311 wxFAIL_MSG(wxT("TODO"));
312
313 return NULL;
314 }
315
316 wxMenu *wxMenuBar::Remove(size_t pos)
317 {
318 wxMenu *menu = wxMenuBarBase::Remove(pos);
319 if ( !menu )
320 return NULL;
321
322 if ( m_menuBarFrame )
323 menu->DestroyMenu(TRUE);
324
325 menu->SetMenuBar(NULL);
326
327 m_titles.Remove(pos);
328
329 return menu;
330 }
331
332 // Find the menu menuString, item itemString, and return the item id.
333 // Returns -1 if none found.
334 int wxMenuBar::FindMenuItem (const wxString& menuString, const wxString& itemString) const
335 {
336 char buf1[200];
337 char buf2[200];
338 wxStripMenuCodes ((char *)(const char *)menuString, buf1);
339
340 size_t menuCount = GetMenuCount();
341 for (size_t i = 0; i < menuCount; i++)
342 {
343 wxStripMenuCodes ((char *)(const char *)m_titles[i], buf2);
344 if (strcmp (buf1, buf2) == 0)
345 return m_menus[i]->FindItem (itemString);
346 }
347 return -1;
348 }
349
350 wxMenuItem *wxMenuBar::FindItem(int id, wxMenu ** itemMenu) const
351 {
352 if (itemMenu)
353 *itemMenu = NULL;
354
355 wxMenuItem *item = NULL;
356 size_t menuCount = GetMenuCount();
357 for (size_t i = 0; i < menuCount; i++)
358 if ((item = m_menus[i]->FindItem(id, itemMenu)))
359 return item;
360 return NULL;
361 }
362
363 // Create menubar
364 bool wxMenuBar::CreateMenuBar(wxFrame* parent)
365 {
366 if (m_mainWidget)
367 {
368 XtVaSetValues((Widget) parent->GetMainWidget(), XmNmenuBar, (Widget) m_mainWidget, NULL);
369 /*
370 if (!XtIsManaged((Widget) m_mainWidget))
371 XtManageChild((Widget) m_mainWidget);
372 */
373 XtMapWidget((Widget) m_mainWidget);
374 return TRUE;
375 }
376
377 Widget menuBarW = XmCreateMenuBar ((Widget) parent->GetMainWidget(), "MenuBar", NULL, 0);
378 m_mainWidget = (WXWidget) menuBarW;
379
380 size_t menuCount = GetMenuCount();
381 for (size_t i = 0; i < menuCount; i++)
382 {
383 wxMenu *menu = GetMenu(i);
384 wxString title(m_titles[i]);
385 menu->SetButtonWidget(menu->CreateMenu (this, menuBarW, menu, title, TRUE));
386
387 if (strcmp (wxStripMenuCodes(title), "Help") == 0)
388 XtVaSetValues ((Widget) menuBarW, XmNmenuHelpWidget, (Widget) menu->GetButtonWidget(), NULL);
389
390 // tear off menu support
391 #if (XmVersion >= 1002)
392 if ( menu->IsTearOff() )
393 {
394 XtVaSetValues(GetWidget(menu),
395 XmNtearOffModel, XmTEAR_OFF_ENABLED,
396 NULL);
397 Widget tearOff = XmGetTearOffControl(GetWidget(menu));
398 wxDoChangeForegroundColour((Widget) tearOff, m_foregroundColour);
399 wxDoChangeBackgroundColour((Widget) tearOff, m_backgroundColour, TRUE);
400 #endif
401 }
402 }
403
404 SetBackgroundColour(m_backgroundColour);
405 SetForegroundColour(m_foregroundColour);
406 SetFont(m_font);
407
408 XtVaSetValues((Widget) parent->GetMainWidget(), XmNmenuBar, (Widget) m_mainWidget, NULL);
409 XtRealizeWidget ((Widget) menuBarW);
410 XtManageChild ((Widget) menuBarW);
411 SetMenuBarFrame(parent);
412
413 return TRUE;
414 }
415
416 // Destroy menubar, but keep data structures intact so we can recreate it.
417 bool wxMenuBar::DestroyMenuBar()
418 {
419 if (!m_mainWidget)
420 {
421 SetMenuBarFrame((wxFrame*) NULL);
422 return FALSE;
423 }
424
425 XtUnmanageChild ((Widget) m_mainWidget);
426 XtUnrealizeWidget ((Widget) m_mainWidget);
427
428 size_t menuCount = GetMenuCount();
429 for (size_t i = 0; i < menuCount; i++)
430 {
431 wxMenu *menu = GetMenu(i);
432 menu->DestroyMenu(TRUE);
433
434 }
435 XtDestroyWidget((Widget) m_mainWidget);
436 m_mainWidget = (WXWidget) 0;
437
438 SetMenuBarFrame((wxFrame*) NULL);
439
440 return TRUE;
441 }
442
443 //// Motif-specific
444 static XtWorkProcId WorkProcMenuId;
445
446 /* Since PopupMenu under Motif stills grab right mouse button events
447 * after it was closed, we need to delete the associated widgets to
448 * allow next PopUpMenu to appear...
449 */
450
451 int PostDeletionOfMenu( XtPointer* clientData )
452 {
453 XtRemoveWorkProc(WorkProcMenuId);
454 wxMenu *menu = (wxMenu *)clientData;
455
456 if (menu->GetMainWidget())
457 {
458 wxMenu *menuParent = menu->GetParent();
459 if ( menuParent )
460 {
461 wxMenuItemList::Node *node = menuParent->GetMenuItems().GetFirst();
462 while ( node )
463 {
464 if ( node->GetData()->GetSubMenu() == menu )
465 {
466 menuParent->GetMenuItems().DeleteNode(node);
467
468 break;
469 }
470
471 node = node->GetNext();
472 }
473 }
474
475 menu->DestroyMenu(TRUE);
476 }
477
478 // Mark as no longer popped up
479 menu->m_menuId = -1;
480
481 return TRUE;
482 }
483
484 void
485 wxMenuPopdownCallback(Widget WXUNUSED(w), XtPointer clientData,
486 XtPointer WXUNUSED(ptr))
487 {
488 wxMenu *menu = (wxMenu *)clientData;
489
490 // Added by JOREL Jean-Charles <jjorel@silr.ireste.fr>
491 /* Since Callbacks of MenuItems are not yet processed, we put a
492 * background job which will be done when system will be idle.
493 * What awful hack!! :(
494 */
495
496 WorkProcMenuId = XtAppAddWorkProc(
497 (XtAppContext) wxTheApp->GetAppContext(),
498 (XtWorkProc) PostDeletionOfMenu,
499 (XtPointer) menu );
500 // Apparently not found in Motif headers
501 // XtVaSetValues( w, XmNpopupEnabled, XmPOPUP_DISABLED, NULL );
502 }
503
504 /*
505 * Create a popup or pulldown menu.
506 * Submenus of a popup will be pulldown.
507 *
508 */
509
510 WXWidget wxMenu::CreateMenu (wxMenuBar * menuBar, WXWidget parent, wxMenu * topMenu, const wxString& title, bool pullDown)
511 {
512 Widget menu = (Widget) 0;
513 Widget buttonWidget = (Widget) 0;
514 Arg args[5];
515 XtSetArg (args[0], XmNnumColumns, m_numColumns);
516 XtSetArg (args[1], XmNpacking, (m_numColumns > 1) ? XmPACK_COLUMN : XmPACK_TIGHT);
517
518 if (!pullDown)
519 {
520 menu = XmCreatePopupMenu ((Widget) parent, "popup", args, 2);
521 XtAddCallback(menu,
522 XmNunmapCallback,
523 (XtCallbackProc)wxMenuPopdownCallback,
524 (XtPointer)this);
525 }
526 else
527 {
528 char mnem = wxFindMnemonic (title);
529 menu = XmCreatePulldownMenu ((Widget) parent, "pulldown", args, 2);
530
531 wxString title2(wxStripMenuCodes(title));
532 wxXmString label_str(title2);
533 buttonWidget = XtVaCreateManagedWidget(title2,
534 #if wxUSE_GADGETS
535 xmCascadeButtonGadgetClass, (Widget) parent,
536 #else
537 xmCascadeButtonWidgetClass, (Widget) parent,
538 #endif
539 XmNlabelString, label_str(),
540 XmNsubMenuId, menu,
541 NULL);
542
543 if (mnem != 0)
544 XtVaSetValues (buttonWidget, XmNmnemonic, mnem, NULL);
545 }
546
547 m_menuWidget = (WXWidget) menu;
548
549 m_menuBar = menuBar;
550 m_topLevelMenu = topMenu;
551
552 for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst();
553 node;
554 node = node->GetNext() )
555 {
556 wxMenuItem *item = node->GetData();
557
558 item->CreateItem(menu, menuBar, topMenu);
559 }
560
561 SetBackgroundColour(m_backgroundColour);
562 SetForegroundColour(m_foregroundColour);
563 SetFont(m_font);
564
565 return buttonWidget;
566 }
567
568 // Destroys the Motif implementation of the menu,
569 // but maintains the wxWindows data structures so we can
570 // do a CreateMenu again.
571 void wxMenu::DestroyMenu (bool full)
572 {
573 for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst();
574 node;
575 node = node->GetNext() )
576 {
577 wxMenuItem *item = node->GetData();
578 item->SetMenuBar((wxMenuBar*) NULL);
579
580 item->DestroyItem(full);
581 }
582
583 if (m_buttonWidget)
584 {
585 if (full)
586 {
587 XtVaSetValues((Widget) m_buttonWidget, XmNsubMenuId, NULL, NULL);
588 XtDestroyWidget ((Widget) m_buttonWidget);
589 m_buttonWidget = (WXWidget) 0;
590 }
591 }
592 if (m_menuWidget && full)
593 {
594 XtDestroyWidget((Widget) m_menuWidget);
595 m_menuWidget = (WXWidget) NULL;
596 }
597 }
598
599 WXWidget wxMenu::FindMenuItem (int id, wxMenuItem ** it) const
600 {
601 if (id == m_menuId)
602 {
603 if (it)
604 *it = (wxMenuItem*) NULL;
605 return m_buttonWidget;
606 }
607
608 for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst();
609 node;
610 node = node->GetNext() )
611 {
612 wxMenuItem *item = node->GetData ();
613 if (item->GetId() == id)
614 {
615 if (it)
616 *it = item;
617 return item->GetButtonWidget();
618 }
619
620 if (item->GetSubMenu())
621 {
622 WXWidget w = item->GetSubMenu()->FindMenuItem (id, it);
623 if (w)
624 {
625 return w;
626 }
627 }
628 }
629
630 if (it)
631 *it = (wxMenuItem*) NULL;
632 return (WXWidget) NULL;
633 }
634
635 void wxMenu::SetBackgroundColour(const wxColour& col)
636 {
637 m_backgroundColour = col;
638 if (m_menuWidget)
639 wxDoChangeBackgroundColour(m_menuWidget, (wxColour&) col);
640 if (m_buttonWidget)
641 wxDoChangeBackgroundColour(m_buttonWidget, (wxColour&) col, TRUE);
642
643 for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst();
644 node;
645 node = node->GetNext() )
646 {
647 wxMenuItem* item = node->GetData();
648 if (item->GetButtonWidget())
649 {
650 // This crashes because it uses gadgets
651 // wxDoChangeBackgroundColour(item->GetButtonWidget(), (wxColour&) col, TRUE);
652 }
653 if (item->GetSubMenu())
654 item->GetSubMenu()->SetBackgroundColour((wxColour&) col);
655 }
656 }
657
658 void wxMenu::SetForegroundColour(const wxColour& col)
659 {
660 m_foregroundColour = col;
661 if (m_menuWidget)
662 wxDoChangeForegroundColour(m_menuWidget, (wxColour&) col);
663 if (m_buttonWidget)
664 wxDoChangeForegroundColour(m_buttonWidget, (wxColour&) col);
665
666 for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst();
667 node;
668 node = node->GetNext() )
669 {
670 wxMenuItem* item = node->GetData();
671 if (item->GetButtonWidget())
672 {
673 // This crashes because it uses gadgets
674 // wxDoChangeForegroundColour(item->GetButtonWidget(), (wxColour&) col);
675 }
676 if (item->GetSubMenu())
677 item->GetSubMenu()->SetForegroundColour((wxColour&) col);
678 }
679 }
680
681 void wxMenu::ChangeFont(bool keepOriginalSize)
682 {
683 // lesstif 0.87 hangs when setting XmNfontList
684 #ifndef LESSTIF_VERSION
685 if (!m_font.Ok() || !m_menuWidget)
686 return;
687
688 XmFontList fontList = (XmFontList) m_font.GetFontList(1.0, XtDisplay((Widget) m_menuWidget));
689
690 XtVaSetValues ((Widget) m_menuWidget,
691 XmNfontList, fontList,
692 NULL);
693 if (m_buttonWidget)
694 {
695 XtVaSetValues ((Widget) m_buttonWidget,
696 XmNfontList, fontList,
697 NULL);
698 }
699
700 for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst();
701 node;
702 node = node->GetNext() )
703 {
704 wxMenuItem* item = node->GetData();
705 if (m_menuWidget && item->GetButtonWidget() && m_font.Ok())
706 {
707 XtVaSetValues ((Widget) item->GetButtonWidget(),
708 XmNfontList, fontList,
709 NULL);
710 }
711 if (item->GetSubMenu())
712 item->GetSubMenu()->ChangeFont(keepOriginalSize);
713 }
714 #endif
715 }
716
717 void wxMenu::SetFont(const wxFont& font)
718 {
719 m_font = font;
720 ChangeFont();
721 }
722
723 bool wxMenuBar::SetBackgroundColour(const wxColour& col)
724 {
725 m_backgroundColour = col;
726 if (m_mainWidget)
727 wxDoChangeBackgroundColour(m_mainWidget, (wxColour&) col);
728
729 size_t menuCount = GetMenuCount();
730 for (size_t i = 0; i < menuCount; i++)
731 m_menus[i]->SetBackgroundColour((wxColour&) col);
732
733 return TRUE;
734 }
735
736 bool wxMenuBar::SetForegroundColour(const wxColour& col)
737 {
738 m_foregroundColour = col;
739 if (m_mainWidget)
740 wxDoChangeForegroundColour(m_mainWidget, (wxColour&) col);
741
742 size_t menuCount = GetMenuCount();
743 for (size_t i = 0; i < menuCount; i++)
744 m_menus[i]->SetForegroundColour((wxColour&) col);
745
746 return TRUE;
747 }
748
749 void wxMenuBar::ChangeFont(bool WXUNUSED(keepOriginalSize))
750 {
751 // Nothing to do for menubar, fonts are kept in wxMenus
752 }
753
754 bool wxMenuBar::SetFont(const wxFont& font)
755 {
756 m_font = font;
757 ChangeFont();
758
759 size_t menuCount = GetMenuCount();
760 for (size_t i = 0; i < menuCount; i++)
761 m_menus[i]->SetFont(font);
762
763 return TRUE;
764 }
765