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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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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
58IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
59IMPLEMENT_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)
70void 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.
93wxMenu::~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
111void wxMenu::Break()
112{
113 m_numColumns++;
114}
115
116// function appends a new item or submenu to the menu
117wxMenuItem* 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
133wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
134{
135 item->DestroyItem(TRUE);
136
137 return wxMenuBase::DoRemove(item);
138}
139
140wxMenuItem* wxMenu::DoInsert(size_t pos, wxMenuItem *item)
141{
142 if ( wxMenuBase::DoInsert(pos, item) )
143 return item;
144
145 wxFAIL_MSG(wxT("DoInsert not implemented; or error in wxMenuBase::DoInsert"));
146
147 return NULL;
148}
149
150void wxMenu::SetTitle(const wxString& label)
151{
152 m_title = label;
153
154 wxMenuItemList::compatibility_iterator 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
169bool 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
199void 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
209wxMenuBar::wxMenuBar(int n, wxMenu *menus[], const wxArrayString& titles)
210{
211 wxASSERT( size_t(n) == titles.GetCount() );
212
213 Init();
214
215 m_titles = titles;
216 for ( int i = 0; i < n; i++ )
217 m_menus.Append(menus[i]);
218}
219
220wxMenuBar::wxMenuBar(int n, wxMenu *menus[], const wxString titles[])
221{
222 Init();
223
224 for ( int i = 0; i < n; i++ )
225 {
226 m_menus.Append(menus[i]);
227 m_titles.Add(titles[i]);
228 }
229}
230
231wxMenuBar::~wxMenuBar()
232{
233 // nothing to do: wxMenuBarBase will delete the menus
234}
235
236void wxMenuBar::EnableTop(size_t WXUNUSED(pos), bool WXUNUSED(flag))
237{
238 // wxFAIL_MSG("TODO");
239// wxLogWarning("wxMenuBar::EnableTop not yet implemented.");
240}
241
242void wxMenuBar::SetLabelTop(size_t pos, const wxString& label)
243{
244 wxMenu *menu = GetMenu(pos);
245 if ( !menu )
246 return;
247
248 Widget w = (Widget)menu->GetButtonWidget();
249 if (w)
250 {
251 wxXmString label_str(label);
252
253 XtVaSetValues(w,
254 XmNlabelString, label_str(),
255 NULL);
256 }
257}
258
259wxString wxMenuBar::GetLabelTop(size_t pos) const
260{
261 wxMenu *menu = GetMenu(pos);
262 if ( menu )
263 {
264 Widget w = (Widget)menu->GetButtonWidget();
265 if (w)
266 {
267 XmString text;
268 XtVaGetValues(w,
269 XmNlabelString, &text,
270 NULL);
271
272 return wxXmStringToString( text );
273 }
274 }
275
276 return wxEmptyString;
277}
278
279bool wxMenuBar::Append(wxMenu * menu, const wxString& title)
280{
281 wxCHECK_MSG( menu, FALSE, wxT("invalid menu") );
282 wxCHECK_MSG( !menu->GetParent() && !menu->GetButtonWidget(), FALSE,
283 wxT("menu already appended") );
284
285 if ( m_menuBarFrame )
286 {
287 WXWidget w = menu->CreateMenu(this, GetMainWidget(), menu, title, TRUE);
288 wxCHECK_MSG( w, FALSE, wxT("failed to create menu") );
289 menu->SetButtonWidget(w);
290 }
291
292 m_titles.Add(title);
293
294 return wxMenuBarBase::Append(menu, title);
295}
296
297bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
298{
299 if ( !wxMenuBarBase::Insert(pos, menu, title) )
300 return FALSE;
301
302 wxFAIL_MSG(wxT("TODO"));
303
304 return FALSE;
305}
306
307wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
308{
309 if ( !wxMenuBarBase::Replace(pos, menu, title) )
310 return NULL;
311
312 wxFAIL_MSG(wxT("TODO"));
313
314 return NULL;
315}
316
317wxMenu *wxMenuBar::Remove(size_t pos)
318{
319 wxMenu *menu = wxMenuBarBase::Remove(pos);
320 if ( !menu )
321 return NULL;
322
323 if ( m_menuBarFrame )
324 menu->DestroyMenu(TRUE);
325
326 menu->SetMenuBar(NULL);
327
328 m_titles.RemoveAt(pos);
329
330 return menu;
331}
332
333// Find the menu menuString, item itemString, and return the item id.
334// Returns -1 if none found.
335int wxMenuBar::FindMenuItem (const wxString& menuString, const wxString& itemString) const
336{
337 char buf1[200];
338 char buf2[200];
339 wxStripMenuCodes (wxConstCast(menuString.c_str(), char), buf1);
340
341 size_t menuCount = GetMenuCount();
342 for (size_t i = 0; i < menuCount; i++)
343 {
344 wxStripMenuCodes (wxConstCast(m_titles[i].c_str(), char), buf2);
345 if (strcmp (buf1, buf2) == 0)
346 return m_menus.Item(i)->GetData()->FindItem (itemString);
347 }
348 return -1;
349}
350
351wxMenuItem *wxMenuBar::FindItem(int id, wxMenu ** itemMenu) const
352{
353 if (itemMenu)
354 *itemMenu = NULL;
355
356 wxMenuItem *item = NULL;
357 size_t menuCount = GetMenuCount();
358 for (size_t i = 0; i < menuCount; i++)
359 if ((item = m_menus.Item(i)->GetData()->FindItem(id, itemMenu)))
360 return item;
361 return NULL;
362}
363
364// Create menubar
365bool wxMenuBar::CreateMenuBar(wxFrame* parent)
366{
367 if (m_mainWidget)
368 {
369 XtVaSetValues((Widget) parent->GetMainWidget(), XmNmenuBar, (Widget) m_mainWidget, NULL);
370 /*
371 if (!XtIsManaged((Widget) m_mainWidget))
372 XtManageChild((Widget) m_mainWidget);
373 */
374 XtMapWidget((Widget) m_mainWidget);
375 return TRUE;
376 }
377
378 Widget menuBarW = XmCreateMenuBar ((Widget) parent->GetMainWidget(), "MenuBar", NULL, 0);
379 m_mainWidget = (WXWidget) menuBarW;
380
381 size_t menuCount = GetMenuCount();
382 for (size_t i = 0; i < menuCount; i++)
383 {
384 wxMenu *menu = GetMenu(i);
385 wxString title(m_titles[i]);
386 menu->SetButtonWidget(menu->CreateMenu (this, menuBarW, menu, title, TRUE));
387
388 if (strcmp (wxStripMenuCodes(title), "Help") == 0)
389 XtVaSetValues ((Widget) menuBarW, XmNmenuHelpWidget, (Widget) menu->GetButtonWidget(), NULL);
390
391 // tear off menu support
392#if (XmVersion >= 1002)
393 if ( menu->IsTearOff() )
394 {
395 XtVaSetValues(GetWidget(menu),
396 XmNtearOffModel, XmTEAR_OFF_ENABLED,
397 NULL);
398 Widget tearOff = XmGetTearOffControl(GetWidget(menu));
399 wxDoChangeForegroundColour((Widget) tearOff, m_foregroundColour);
400 wxDoChangeBackgroundColour((Widget) tearOff, m_backgroundColour, TRUE);
401#endif
402 }
403 }
404
405 SetBackgroundColour(m_backgroundColour);
406 SetForegroundColour(m_foregroundColour);
407 SetFont(m_font);
408
409 XtVaSetValues((Widget) parent->GetMainWidget(), XmNmenuBar, (Widget) m_mainWidget, NULL);
410 XtRealizeWidget ((Widget) menuBarW);
411 XtManageChild ((Widget) menuBarW);
412 SetMenuBarFrame(parent);
413
414 return TRUE;
415}
416
417// Destroy menubar, but keep data structures intact so we can recreate it.
418bool wxMenuBar::DestroyMenuBar()
419{
420 if (!m_mainWidget)
421 {
422 SetMenuBarFrame((wxFrame*) NULL);
423 return FALSE;
424 }
425
426 XtUnmanageChild ((Widget) m_mainWidget);
427 XtUnrealizeWidget ((Widget) m_mainWidget);
428
429 size_t menuCount = GetMenuCount();
430 for (size_t i = 0; i < menuCount; i++)
431 {
432 wxMenu *menu = GetMenu(i);
433 menu->DestroyMenu(TRUE);
434
435 }
436 XtDestroyWidget((Widget) m_mainWidget);
437 m_mainWidget = (WXWidget) 0;
438
439 SetMenuBarFrame((wxFrame*) NULL);
440
441 return TRUE;
442}
443
444// Since PopupMenu under Motif stills grab right mouse button events
445// after it was closed, we need to delete the associated widgets to
446// allow next PopUpMenu to appear...
447void wxMenu::DestroyWidgetAndDetach()
448{
449 if (GetMainWidget())
450 {
451 wxMenu *menuParent = GetParent();
452 if ( menuParent )
453 {
454 wxMenuItemList::compatibility_iterator node = menuParent->GetMenuItems().GetFirst();
455 while ( node )
456 {
457 if ( node->GetData()->GetSubMenu() == this )
458 {
459 delete node->GetData();
460 menuParent->GetMenuItems().Erase(node);
461
462 break;
463 }
464
465 node = node->GetNext();
466 }
467 }
468
469 DestroyMenu(TRUE);
470 }
471
472 // Mark as no longer popped up
473 m_menuId = -1;
474}
475
476/*
477* Create a popup or pulldown menu.
478* Submenus of a popup will be pulldown.
479*
480*/
481
482WXWidget wxMenu::CreateMenu (wxMenuBar * menuBar, WXWidget parent, wxMenu * topMenu, const wxString& title, bool pullDown)
483{
484 Widget menu = (Widget) 0;
485 Widget buttonWidget = (Widget) 0;
486 Arg args[5];
487 XtSetArg (args[0], XmNnumColumns, m_numColumns);
488 XtSetArg (args[1], XmNpacking, (m_numColumns > 1) ? XmPACK_COLUMN : XmPACK_TIGHT);
489
490 if (!pullDown)
491 {
492 menu = XmCreatePopupMenu ((Widget) parent, "popup", args, 2);
493#if 0
494 XtAddCallback(menu,
495 XmNunmapCallback,
496 (XtCallbackProc)wxMenuPopdownCallback,
497 (XtPointer)this);
498#endif
499 }
500 else
501 {
502 char mnem = wxFindMnemonic (title);
503 menu = XmCreatePulldownMenu ((Widget) parent, "pulldown", args, 2);
504
505 wxString title2(wxStripMenuCodes(title));
506 wxXmString label_str(title2);
507 buttonWidget = XtVaCreateManagedWidget(title2,
508#if wxUSE_GADGETS
509 xmCascadeButtonGadgetClass, (Widget) parent,
510#else
511 xmCascadeButtonWidgetClass, (Widget) parent,
512#endif
513 XmNlabelString, label_str(),
514 XmNsubMenuId, menu,
515 NULL);
516
517 if (mnem != 0)
518 XtVaSetValues (buttonWidget, XmNmnemonic, mnem, NULL);
519 }
520
521 m_menuWidget = (WXWidget) menu;
522
523 m_topLevelMenu = topMenu;
524
525 for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
526 node;
527 node = node->GetNext() )
528 {
529 wxMenuItem *item = node->GetData();
530
531 item->CreateItem(menu, menuBar, topMenu);
532 }
533
534 SetBackgroundColour(m_backgroundColour);
535 SetForegroundColour(m_foregroundColour);
536 SetFont(m_font);
537
538 return buttonWidget;
539}
540
541// Destroys the Motif implementation of the menu,
542// but maintains the wxWindows data structures so we can
543// do a CreateMenu again.
544void wxMenu::DestroyMenu (bool full)
545{
546 for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
547 node;
548 node = node->GetNext() )
549 {
550 wxMenuItem *item = node->GetData();
551 item->SetMenuBar((wxMenuBar*) NULL);
552
553 item->DestroyItem(full);
554 }
555
556 if (m_buttonWidget)
557 {
558 if (full)
559 {
560 XtVaSetValues((Widget) m_buttonWidget, XmNsubMenuId, NULL, NULL);
561 XtDestroyWidget ((Widget) m_buttonWidget);
562 m_buttonWidget = (WXWidget) 0;
563 }
564 }
565 if (m_menuWidget && full)
566 {
567 XtDestroyWidget((Widget) m_menuWidget);
568 m_menuWidget = (WXWidget) NULL;
569 }
570}
571
572WXWidget wxMenu::FindMenuItem (int id, wxMenuItem ** it) const
573{
574 if (id == m_menuId)
575 {
576 if (it)
577 *it = (wxMenuItem*) NULL;
578 return m_buttonWidget;
579 }
580
581 for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
582 node;
583 node = node->GetNext() )
584 {
585 wxMenuItem *item = node->GetData ();
586 if (item->GetId() == id)
587 {
588 if (it)
589 *it = item;
590 return item->GetButtonWidget();
591 }
592
593 if (item->GetSubMenu())
594 {
595 WXWidget w = item->GetSubMenu()->FindMenuItem (id, it);
596 if (w)
597 {
598 return w;
599 }
600 }
601 }
602
603 if (it)
604 *it = (wxMenuItem*) NULL;
605 return (WXWidget) NULL;
606}
607
608void wxMenu::SetBackgroundColour(const wxColour& col)
609{
610 m_backgroundColour = col;
611 if (m_menuWidget)
612 wxDoChangeBackgroundColour(m_menuWidget, (wxColour&) col);
613 if (m_buttonWidget)
614 wxDoChangeBackgroundColour(m_buttonWidget, (wxColour&) col, TRUE);
615
616 for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
617 node;
618 node = node->GetNext() )
619 {
620 wxMenuItem* item = node->GetData();
621 if (item->GetButtonWidget())
622 {
623 // This crashes because it uses gadgets
624 // wxDoChangeBackgroundColour(item->GetButtonWidget(), (wxColour&) col, TRUE);
625 }
626 if (item->GetSubMenu())
627 item->GetSubMenu()->SetBackgroundColour((wxColour&) col);
628 }
629}
630
631void wxMenu::SetForegroundColour(const wxColour& col)
632{
633 m_foregroundColour = col;
634 if (m_menuWidget)
635 wxDoChangeForegroundColour(m_menuWidget, (wxColour&) col);
636 if (m_buttonWidget)
637 wxDoChangeForegroundColour(m_buttonWidget, (wxColour&) col);
638
639 for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
640 node;
641 node = node->GetNext() )
642 {
643 wxMenuItem* item = node->GetData();
644 if (item->GetButtonWidget())
645 {
646 // This crashes because it uses gadgets
647 // wxDoChangeForegroundColour(item->GetButtonWidget(), (wxColour&) col);
648 }
649 if (item->GetSubMenu())
650 item->GetSubMenu()->SetForegroundColour((wxColour&) col);
651 }
652}
653
654void wxMenu::ChangeFont(bool keepOriginalSize)
655{
656 // Lesstif 0.87 hangs here, but 0.93 does not
657#if !wxCHECK_LESSTIF() || wxCHECK_LESSTIF_VERSION( 0, 93 )
658 if (!m_font.Ok() || !m_menuWidget)
659 return;
660
661 WXFontType fontType = m_font.GetFontType(XtDisplay((Widget) m_menuWidget));
662
663 XtVaSetValues ((Widget) m_menuWidget,
664 wxFont::GetFontTag(), fontType,
665 NULL);
666 if (m_buttonWidget)
667 {
668 XtVaSetValues ((Widget) m_buttonWidget,
669 wxFont::GetFontTag(), fontType,
670 NULL);
671 }
672
673 for ( wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
674 node;
675 node = node->GetNext() )
676 {
677 wxMenuItem* item = node->GetData();
678 if (m_menuWidget && item->GetButtonWidget() && m_font.Ok())
679 {
680 XtVaSetValues ((Widget) item->GetButtonWidget(),
681 wxFont::GetFontTag(), fontType,
682 NULL);
683 }
684 if (item->GetSubMenu())
685 item->GetSubMenu()->ChangeFont(keepOriginalSize);
686 }
687#endif
688}
689
690void wxMenu::SetFont(const wxFont& font)
691{
692 m_font = font;
693 ChangeFont();
694}
695
696bool wxMenuBar::SetBackgroundColour(const wxColour& col)
697{
698 m_backgroundColour = col;
699 if (m_mainWidget)
700 wxDoChangeBackgroundColour(m_mainWidget, (wxColour&) col);
701
702 size_t menuCount = GetMenuCount();
703 for (size_t i = 0; i < menuCount; i++)
704 m_menus.Item(i)->GetData()->SetBackgroundColour((wxColour&) col);
705
706 return TRUE;
707}
708
709bool wxMenuBar::SetForegroundColour(const wxColour& col)
710{
711 m_foregroundColour = col;
712 if (m_mainWidget)
713 wxDoChangeForegroundColour(m_mainWidget, (wxColour&) col);
714
715 size_t menuCount = GetMenuCount();
716 for (size_t i = 0; i < menuCount; i++)
717 m_menus.Item(i)->GetData()->SetForegroundColour((wxColour&) col);
718
719 return TRUE;
720}
721
722void wxMenuBar::ChangeFont(bool WXUNUSED(keepOriginalSize))
723{
724 // Nothing to do for menubar, fonts are kept in wxMenus
725}
726
727bool wxMenuBar::SetFont(const wxFont& font)
728{
729 m_font = font;
730 ChangeFont();
731
732 size_t menuCount = GetMenuCount();
733 for (size_t i = 0; i < menuCount; i++)
734 m_menus.Item(i)->GetData()->SetFont(font);
735
736 return TRUE;
737}
738