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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: univ/menu.cpp | |
3 | // Purpose: wxMenuItem, wxMenu and wxMenuBar implementation | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 25.08.00 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #ifdef __GNUG__ | |
21 | #pragma implementation "univmenuitem.h" | |
22 | #pragma implementation "univmenu.h" | |
23 | #endif | |
24 | ||
25 | #include "wx/wxprec.h" | |
26 | ||
27 | #ifdef __BORLANDC__ | |
28 | #pragma hdrstop | |
29 | #endif | |
30 | ||
31 | #ifndef WX_PRECOMP | |
32 | #include "wx/dynarray.h" | |
33 | #include "wx/control.h" // for FindAccelIndex() | |
34 | #include "wx/menu.h" | |
35 | #include "wx/settings.h" | |
36 | #include "wx/accel.h" | |
37 | #include "wx/log.h" | |
38 | #endif // WX_PRECOMP | |
39 | ||
40 | #if wxUSE_MENUS | |
41 | ||
42 | #include "wx/popupwin.h" | |
43 | #include "wx/evtloop.h" | |
44 | #include "wx/dcclient.h" | |
45 | #include "wx/frame.h" | |
46 | ||
47 | #include "wx/univ/renderer.h" | |
48 | ||
49 | #ifdef __WXMSW__ | |
50 | #include "wx/msw/private.h" | |
51 | #endif // __WXMSW__ | |
52 | ||
53 | // ---------------------------------------------------------------------------- | |
54 | // wxMenuInfo contains all extra information about top level menus we need | |
55 | // ---------------------------------------------------------------------------- | |
56 | ||
57 | class WXDLLEXPORT wxMenuInfo | |
58 | { | |
59 | public: | |
60 | // ctor | |
61 | wxMenuInfo(const wxString& text) | |
62 | { | |
63 | SetLabel(text); | |
64 | SetEnabled(); | |
65 | } | |
66 | ||
67 | // modifiers | |
68 | ||
69 | void SetLabel(const wxString& text) | |
70 | { | |
71 | // remember the accel char (may be -1 if none) | |
72 | m_indexAccel = wxControl::FindAccelIndex(text, &m_label); | |
73 | ||
74 | // calculate the width later, after the menu bar is created | |
75 | m_width = 0; | |
76 | } | |
77 | ||
78 | void SetEnabled(bool enabled = TRUE) { m_isEnabled = enabled; } | |
79 | ||
80 | // accessors | |
81 | ||
82 | const wxString& GetLabel() const { return m_label; } | |
83 | bool IsEnabled() const { return m_isEnabled; } | |
84 | wxCoord GetWidth(wxMenuBar *menubar) const | |
85 | { | |
86 | if ( !m_width ) | |
87 | { | |
88 | wxConstCast(this, wxMenuInfo)->CalcWidth(menubar); | |
89 | } | |
90 | ||
91 | return m_width; | |
92 | } | |
93 | ||
94 | int GetAccelIndex() const { return m_indexAccel; } | |
95 | ||
96 | private: | |
97 | void CalcWidth(wxMenuBar *menubar) | |
98 | { | |
99 | wxSize size; | |
100 | wxClientDC dc(menubar); | |
101 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
102 | dc.GetTextExtent(m_label, &size.x, &size.y); | |
103 | ||
104 | // adjust for the renderer we use and store the width | |
105 | m_width = menubar->GetRenderer()->GetMenuBarItemSize(size).x; | |
106 | } | |
107 | ||
108 | wxString m_label; | |
109 | wxCoord m_width; | |
110 | int m_indexAccel; | |
111 | bool m_isEnabled; | |
112 | }; | |
113 | ||
114 | #include "wx/arrimpl.cpp" | |
115 | ||
116 | WX_DEFINE_OBJARRAY(wxMenuInfoArray); | |
117 | ||
118 | // ---------------------------------------------------------------------------- | |
119 | // wxPopupMenuWindow: a popup window showing a menu | |
120 | // ---------------------------------------------------------------------------- | |
121 | ||
122 | class wxPopupMenuWindow : public wxPopupTransientWindow | |
123 | { | |
124 | public: | |
125 | wxPopupMenuWindow(wxWindow *parent, wxMenu *menu); | |
126 | ||
127 | ~wxPopupMenuWindow(); | |
128 | ||
129 | // override the base class version to select the first item initially | |
130 | virtual void Popup(wxWindow *focus = NULL); | |
131 | ||
132 | // override the base class version to dismiss any open submenus | |
133 | virtual void Dismiss(); | |
134 | ||
135 | // notify the menu when the window disappears from screen | |
136 | virtual void OnDismiss(); | |
137 | ||
138 | // called when a submenu is dismissed | |
139 | void OnSubmenuDismiss() { m_hasOpenSubMenu = FALSE; } | |
140 | ||
141 | // get the currently selected item (may be NULL) | |
142 | wxMenuItem *GetCurrentItem() const | |
143 | { | |
144 | return m_nodeCurrent ? m_nodeCurrent->GetData() : NULL; | |
145 | } | |
146 | ||
147 | // find the menu item at given position | |
148 | wxMenuItemList::Node *GetMenuItemFromPoint(const wxPoint& pt) const; | |
149 | ||
150 | // refresh the given item | |
151 | void RefreshItem(wxMenuItem *item); | |
152 | ||
153 | // preselect the first item | |
154 | void SelectFirst() { SetCurrent(m_menu->GetMenuItems().GetFirst()); } | |
155 | ||
156 | // process the key event, return TRUE if done | |
157 | bool ProcessKeyDown(int key); | |
158 | ||
159 | // process mouse move event | |
160 | void ProcessMouseMove(const wxPoint& pt); | |
161 | ||
162 | // don't dismiss the popup window if the parent menu was clicked | |
163 | virtual bool ProcessLeftDown(wxMouseEvent& event); | |
164 | ||
165 | protected: | |
166 | // how did we perform this operation? | |
167 | enum InputMethod | |
168 | { | |
169 | WithKeyboard, | |
170 | WithMouse | |
171 | }; | |
172 | ||
173 | // draw the menu inside this window | |
174 | virtual void DoDraw(wxControlRenderer *renderer); | |
175 | ||
176 | // event handlers | |
177 | void OnLeftUp(wxMouseEvent& event); | |
178 | void OnMouseMove(wxMouseEvent& event); | |
179 | void OnMouseLeave(wxMouseEvent& event); | |
180 | void OnKeyDown(wxKeyEvent& event); | |
181 | ||
182 | // reset the current item and node | |
183 | void ResetCurrent(); | |
184 | ||
185 | // set the current node and item withotu refreshing anything | |
186 | void SetCurrent(wxMenuItemList::Node *node); | |
187 | ||
188 | // change the current item refreshing the old and new items | |
189 | void ChangeCurrent(wxMenuItemList::Node *node); | |
190 | ||
191 | // activate item, i.e. call either ClickItem() or OpenSubmenu() depending | |
192 | // on what it is, return TRUE if something was done (i.e. it's not a | |
193 | // separator...) | |
194 | bool ActivateItem(wxMenuItem *item, InputMethod how = WithKeyboard); | |
195 | ||
196 | // send the event about the item click | |
197 | void ClickItem(wxMenuItem *item); | |
198 | ||
199 | // show the submenu for this item | |
200 | void OpenSubmenu(wxMenuItem *item, InputMethod how = WithKeyboard); | |
201 | ||
202 | // can this tiem be opened? | |
203 | bool CanOpen(wxMenuItem *item) | |
204 | { | |
205 | return item && item->IsEnabled() && item->IsSubMenu(); | |
206 | } | |
207 | ||
208 | // dismiss the menu and all parent menus too | |
209 | void DismissAndNotify(); | |
210 | ||
211 | // react to dimissing this menu and also dismiss the parent if | |
212 | // dismissParent | |
213 | void HandleDismiss(bool dismissParent); | |
214 | ||
215 | // do we have an open submenu? | |
216 | bool HasOpenSubmenu() const { return m_hasOpenSubMenu; } | |
217 | ||
218 | // get previous node after the current one | |
219 | wxMenuItemList::Node *GetPrevNode() const; | |
220 | ||
221 | // get previous node before the given one, wrapping if it's the first one | |
222 | wxMenuItemList::Node *GetPrevNode(wxMenuItemList::Node *node) const; | |
223 | ||
224 | // get next node after the current one | |
225 | wxMenuItemList::Node *GetNextNode() const; | |
226 | ||
227 | // get next node after the given one, wrapping if it's the last one | |
228 | wxMenuItemList::Node *GetNextNode(wxMenuItemList::Node *node) const; | |
229 | ||
230 | private: | |
231 | // the menu we show | |
232 | wxMenu *m_menu; | |
233 | ||
234 | // the menu node corresponding to the current item | |
235 | wxMenuItemList::Node *m_nodeCurrent; | |
236 | ||
237 | // do we currently have an opened submenu? | |
238 | bool m_hasOpenSubMenu; | |
239 | ||
240 | DECLARE_EVENT_TABLE() | |
241 | }; | |
242 | ||
243 | // ---------------------------------------------------------------------------- | |
244 | // wxMenuKbdRedirector: an event handler which redirects kbd input to wxMenu | |
245 | // ---------------------------------------------------------------------------- | |
246 | ||
247 | class wxMenuKbdRedirector : public wxEvtHandler | |
248 | { | |
249 | public: | |
250 | wxMenuKbdRedirector(wxMenu *menu) { m_menu = menu; } | |
251 | ||
252 | virtual bool ProcessEvent(wxEvent& event) | |
253 | { | |
254 | if ( event.GetEventType() == wxEVT_KEY_DOWN ) | |
255 | { | |
256 | return m_menu->ProcessKeyDown(((wxKeyEvent &)event).GetKeyCode()); | |
257 | } | |
258 | else | |
259 | { | |
260 | // return FALSE; | |
261 | ||
262 | return wxEvtHandler::ProcessEvent(event); | |
263 | } | |
264 | } | |
265 | ||
266 | private: | |
267 | wxMenu *m_menu; | |
268 | }; | |
269 | ||
270 | // ---------------------------------------------------------------------------- | |
271 | // wxWin macros | |
272 | // ---------------------------------------------------------------------------- | |
273 | ||
274 | IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler) | |
275 | IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxWindow) | |
276 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject) | |
277 | ||
278 | BEGIN_EVENT_TABLE(wxPopupMenuWindow, wxPopupTransientWindow) | |
279 | EVT_KEY_DOWN(wxPopupMenuWindow::OnKeyDown) | |
280 | ||
281 | EVT_LEFT_UP(wxPopupMenuWindow::OnLeftUp) | |
282 | EVT_MOTION(wxPopupMenuWindow::OnMouseMove) | |
283 | EVT_LEAVE_WINDOW(wxPopupMenuWindow::OnMouseLeave) | |
284 | END_EVENT_TABLE() | |
285 | ||
286 | BEGIN_EVENT_TABLE(wxMenuBar, wxMenuBarBase) | |
287 | EVT_KILL_FOCUS(wxMenuBar::OnKillFocus) | |
288 | ||
289 | EVT_KEY_DOWN(wxMenuBar::OnKeyDown) | |
290 | ||
291 | EVT_LEFT_DOWN(wxMenuBar::OnLeftDown) | |
292 | EVT_MOTION(wxMenuBar::OnMouseMove) | |
293 | END_EVENT_TABLE() | |
294 | ||
295 | // ============================================================================ | |
296 | // implementation | |
297 | // ============================================================================ | |
298 | ||
299 | // ---------------------------------------------------------------------------- | |
300 | // wxPopupMenuWindow | |
301 | // ---------------------------------------------------------------------------- | |
302 | ||
303 | wxPopupMenuWindow::wxPopupMenuWindow(wxWindow *parent, wxMenu *menu) | |
304 | { | |
305 | m_menu = menu; | |
306 | m_hasOpenSubMenu = FALSE; | |
307 | ||
308 | ResetCurrent(); | |
309 | ||
310 | (void)Create(parent, wxBORDER_RAISED); | |
311 | ||
312 | SetCursor(wxCURSOR_ARROW); | |
313 | } | |
314 | ||
315 | wxPopupMenuWindow::~wxPopupMenuWindow() | |
316 | { | |
317 | // When m_popupMenu in wxMenu is deleted because it | |
318 | // is a child of an old menu bar being deleted (note: it does | |
319 | // not get destroyed by the wxMenu destructor, but | |
320 | // by DestroyChildren()), m_popupMenu should be reset to NULL. | |
321 | ||
322 | m_menu->m_popupMenu = NULL; | |
323 | } | |
324 | ||
325 | // ---------------------------------------------------------------------------- | |
326 | // wxPopupMenuWindow current item/node handling | |
327 | // ---------------------------------------------------------------------------- | |
328 | ||
329 | void wxPopupMenuWindow::ResetCurrent() | |
330 | { | |
331 | SetCurrent(NULL); | |
332 | } | |
333 | ||
334 | void wxPopupMenuWindow::SetCurrent(wxMenuItemList::Node *node) | |
335 | { | |
336 | m_nodeCurrent = node; | |
337 | } | |
338 | ||
339 | void wxPopupMenuWindow::ChangeCurrent(wxMenuItemList::Node *node) | |
340 | { | |
341 | if ( node != m_nodeCurrent ) | |
342 | { | |
343 | wxMenuItemList::Node *nodeOldCurrent = m_nodeCurrent; | |
344 | ||
345 | m_nodeCurrent = node; | |
346 | ||
347 | if ( nodeOldCurrent ) | |
348 | { | |
349 | wxMenuItem *item = nodeOldCurrent->GetData(); | |
350 | wxCHECK_RET( item, _T("no current item?") ); | |
351 | ||
352 | // if it was the currently opened menu, close it | |
353 | if ( item->IsSubMenu() && item->GetSubMenu()->IsShown() ) | |
354 | { | |
355 | item->GetSubMenu()->Dismiss(); | |
356 | OnSubmenuDismiss(); | |
357 | } | |
358 | ||
359 | RefreshItem(item); | |
360 | } | |
361 | ||
362 | if ( m_nodeCurrent ) | |
363 | RefreshItem(m_nodeCurrent->GetData()); | |
364 | } | |
365 | } | |
366 | ||
367 | wxMenuItemList::Node *wxPopupMenuWindow::GetPrevNode() const | |
368 | { | |
369 | // return the last node if there had been no previously selected one | |
370 | return m_nodeCurrent ? GetPrevNode(m_nodeCurrent) | |
371 | : m_menu->GetMenuItems().GetLast(); | |
372 | } | |
373 | ||
374 | wxMenuItemList::Node * | |
375 | wxPopupMenuWindow::GetPrevNode(wxMenuItemList::Node *node) const | |
376 | { | |
377 | if ( node ) | |
378 | { | |
379 | node = node->GetPrevious(); | |
380 | if ( !node ) | |
381 | { | |
382 | node = m_menu->GetMenuItems().GetLast(); | |
383 | } | |
384 | } | |
385 | //else: the menu is empty | |
386 | ||
387 | return node; | |
388 | } | |
389 | ||
390 | wxMenuItemList::Node *wxPopupMenuWindow::GetNextNode() const | |
391 | { | |
392 | // return the first node if there had been no previously selected one | |
393 | return m_nodeCurrent ? GetNextNode(m_nodeCurrent) | |
394 | : m_menu->GetMenuItems().GetFirst(); | |
395 | } | |
396 | ||
397 | wxMenuItemList::Node * | |
398 | wxPopupMenuWindow::GetNextNode(wxMenuItemList::Node *node) const | |
399 | { | |
400 | if ( node ) | |
401 | { | |
402 | node = node->GetNext(); | |
403 | if ( !node ) | |
404 | { | |
405 | node = m_menu->GetMenuItems().GetFirst(); | |
406 | } | |
407 | } | |
408 | //else: the menu is empty | |
409 | ||
410 | return node; | |
411 | } | |
412 | ||
413 | // ---------------------------------------------------------------------------- | |
414 | // wxPopupMenuWindow popup/dismiss | |
415 | // ---------------------------------------------------------------------------- | |
416 | ||
417 | void wxPopupMenuWindow::Popup(wxWindow *focus) | |
418 | { | |
419 | // check that the current item had been properly reset before | |
420 | wxASSERT_MSG( !m_nodeCurrent || | |
421 | m_nodeCurrent == m_menu->GetMenuItems().GetFirst(), | |
422 | _T("menu current item preselected incorrectly") ); | |
423 | ||
424 | wxPopupTransientWindow::Popup(focus); | |
425 | ||
426 | #ifdef __WXMSW__ | |
427 | // ensure that this window is really on top of everything: without using | |
428 | // SetWindowPos() it can be covered by its parent menu which is not | |
429 | // really what we want | |
430 | wxMenu *menuParent = m_menu->GetParent(); | |
431 | if ( menuParent ) | |
432 | { | |
433 | wxPopupMenuWindow *win = menuParent->m_popupMenu; | |
434 | ||
435 | // if we're shown, the parent menu must be also shown | |
436 | wxCHECK_RET( win, _T("parent menu is not shown?") ); | |
437 | ||
438 | if ( !::SetWindowPos(GetHwndOf(win), GetHwnd(), | |
439 | 0, 0, 0, 0, | |
440 | SWP_NOMOVE | SWP_NOSIZE | SWP_NOREDRAW) ) | |
441 | { | |
442 | wxLogLastError(_T("SetWindowPos(HWND_TOP)")); | |
443 | } | |
444 | ||
445 | Refresh(); | |
446 | } | |
447 | #endif // __WXMSW__ | |
448 | } | |
449 | ||
450 | void wxPopupMenuWindow::Dismiss() | |
451 | { | |
452 | if ( HasOpenSubmenu() ) | |
453 | { | |
454 | wxMenuItem *item = GetCurrentItem(); | |
455 | wxCHECK_RET( item && item->IsSubMenu(), _T("where is our open submenu?") ); | |
456 | ||
457 | wxPopupMenuWindow *win = item->GetSubMenu()->m_popupMenu; | |
458 | wxCHECK_RET( win, _T("opened submenu is not opened?") ); | |
459 | ||
460 | win->Dismiss(); | |
461 | OnSubmenuDismiss(); | |
462 | } | |
463 | ||
464 | wxPopupTransientWindow::Dismiss(); | |
465 | } | |
466 | ||
467 | void wxPopupMenuWindow::OnDismiss() | |
468 | { | |
469 | // when we are dismissed because the user clicked elsewhere or we lost | |
470 | // focus in any other way, hide the parent menu as well | |
471 | HandleDismiss(TRUE); | |
472 | } | |
473 | ||
474 | void wxPopupMenuWindow::HandleDismiss(bool dismissParent) | |
475 | { | |
476 | ResetCurrent(); | |
477 | ||
478 | m_menu->OnDismiss(dismissParent); | |
479 | } | |
480 | ||
481 | void wxPopupMenuWindow::DismissAndNotify() | |
482 | { | |
483 | Dismiss(); | |
484 | HandleDismiss(TRUE); | |
485 | } | |
486 | ||
487 | // ---------------------------------------------------------------------------- | |
488 | // wxPopupMenuWindow geometry | |
489 | // ---------------------------------------------------------------------------- | |
490 | ||
491 | wxMenuItemList::Node * | |
492 | wxPopupMenuWindow::GetMenuItemFromPoint(const wxPoint& pt) const | |
493 | { | |
494 | // we only use the y coord normally, but still check x in case the point is | |
495 | // outside the window completely | |
496 | if ( wxWindow::HitTest(pt) == wxHT_WINDOW_INSIDE ) | |
497 | { | |
498 | wxCoord y = 0; | |
499 | for ( wxMenuItemList::Node *node = m_menu->GetMenuItems().GetFirst(); | |
500 | node; | |
501 | node = node->GetNext() ) | |
502 | { | |
503 | wxMenuItem *item = node->GetData(); | |
504 | y += item->GetHeight(); | |
505 | if ( y > pt.y ) | |
506 | { | |
507 | // found | |
508 | return node; | |
509 | } | |
510 | } | |
511 | } | |
512 | ||
513 | return NULL; | |
514 | } | |
515 | ||
516 | // ---------------------------------------------------------------------------- | |
517 | // wxPopupMenuWindow drawing | |
518 | // ---------------------------------------------------------------------------- | |
519 | ||
520 | void wxPopupMenuWindow::RefreshItem(wxMenuItem *item) | |
521 | { | |
522 | wxCHECK_RET( item, _T("can't refresh NULL item") ); | |
523 | ||
524 | wxASSERT_MSG( IsShown(), _T("can't refresh menu which is not shown") ); | |
525 | ||
526 | // FIXME: -1 here because of SetLogicalOrigin(1, 1) in DoDraw() | |
527 | RefreshRect(wxRect(0, item->GetPosition() - 1, | |
528 | m_menu->GetGeometryInfo().GetSize().x, item->GetHeight())); | |
529 | } | |
530 | ||
531 | void wxPopupMenuWindow::DoDraw(wxControlRenderer *renderer) | |
532 | { | |
533 | // no clipping so far - do we need it? I don't think so as the menu is | |
534 | // never partially covered as it is always on top of everything | |
535 | ||
536 | wxDC& dc = renderer->GetDC(); | |
537 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
538 | ||
539 | // FIXME: this should be done in the renderer, however when it is fixed | |
540 | // wxPopupMenuWindow::RefreshItem() should be changed too! | |
541 | dc.SetLogicalOrigin(1, 1); | |
542 | ||
543 | wxRenderer *rend = renderer->GetRenderer(); | |
544 | ||
545 | wxCoord y = 0; | |
546 | const wxMenuGeometryInfo& gi = m_menu->GetGeometryInfo(); | |
547 | for ( wxMenuItemList::Node *node = m_menu->GetMenuItems().GetFirst(); | |
548 | node; | |
549 | node = node->GetNext() ) | |
550 | { | |
551 | wxMenuItem *item = node->GetData(); | |
552 | ||
553 | if ( item->IsSeparator() ) | |
554 | { | |
555 | rend->DrawMenuSeparator(dc, y, gi); | |
556 | } | |
557 | else // not a separator | |
558 | { | |
559 | int flags = 0; | |
560 | if ( item->IsCheckable() ) | |
561 | { | |
562 | flags |= wxCONTROL_CHECKABLE; | |
563 | ||
564 | if ( item->IsChecked() ) | |
565 | { | |
566 | flags |= wxCONTROL_CHECKED; | |
567 | } | |
568 | } | |
569 | ||
570 | if ( !item->IsEnabled() ) | |
571 | flags |= wxCONTROL_DISABLED; | |
572 | ||
573 | if ( item->IsSubMenu() ) | |
574 | flags |= wxCONTROL_ISSUBMENU; | |
575 | ||
576 | if ( item == GetCurrentItem() ) | |
577 | flags |= wxCONTROL_SELECTED; | |
578 | ||
579 | rend->DrawMenuItem | |
580 | ( | |
581 | dc, | |
582 | y, | |
583 | gi, | |
584 | item->GetLabel(), | |
585 | item->GetAccelString(), | |
586 | // strangely enough, for unchecked item we use the | |
587 | // "checked" bitmap because this is the default one - this | |
588 | // explains this strange boolean expression | |
589 | item->GetBitmap(!item->IsCheckable() || item->IsChecked()), | |
590 | flags, | |
591 | item->GetAccelIndex() | |
592 | ); | |
593 | } | |
594 | ||
595 | y += item->GetHeight(); | |
596 | } | |
597 | } | |
598 | ||
599 | // ---------------------------------------------------------------------------- | |
600 | // wxPopupMenuWindow actions | |
601 | // ---------------------------------------------------------------------------- | |
602 | ||
603 | void wxPopupMenuWindow::ClickItem(wxMenuItem *item) | |
604 | { | |
605 | wxCHECK_RET( item, _T("can't click NULL item") ); | |
606 | ||
607 | wxASSERT_MSG( !item->IsSeparator() && !item->IsSubMenu(), | |
608 | _T("can't click this item") ); | |
609 | ||
610 | wxMenu* menu = m_menu; | |
611 | ||
612 | // close all menus | |
613 | DismissAndNotify(); | |
614 | ||
615 | menu->ClickItem(item); | |
616 | } | |
617 | ||
618 | void wxPopupMenuWindow::OpenSubmenu(wxMenuItem *item, InputMethod how) | |
619 | { | |
620 | wxCHECK_RET( item, _T("can't open NULL submenu") ); | |
621 | ||
622 | wxMenu *submenu = item->GetSubMenu(); | |
623 | wxCHECK_RET( submenu, _T("can only open submenus!") ); | |
624 | ||
625 | // FIXME: should take into account the border width | |
626 | submenu->Popup(ClientToScreen(wxPoint(0, item->GetPosition())), | |
627 | wxSize(m_menu->GetGeometryInfo().GetSize().x, 0), | |
628 | how == WithKeyboard /* preselect first item then */); | |
629 | ||
630 | m_hasOpenSubMenu = TRUE; | |
631 | } | |
632 | ||
633 | bool wxPopupMenuWindow::ActivateItem(wxMenuItem *item, InputMethod how) | |
634 | { | |
635 | // don't activate disabled items | |
636 | if ( !item || !item->IsEnabled() ) | |
637 | { | |
638 | return FALSE; | |
639 | } | |
640 | ||
641 | // normal menu items generate commands, submenus can be opened and | |
642 | // the separators don't do anything | |
643 | if ( item->IsSubMenu() ) | |
644 | { | |
645 | OpenSubmenu(item, how); | |
646 | } | |
647 | else if ( !item->IsSeparator() ) | |
648 | { | |
649 | ClickItem(item); | |
650 | } | |
651 | else // separator, can't activate | |
652 | { | |
653 | return FALSE; | |
654 | } | |
655 | ||
656 | return TRUE; | |
657 | } | |
658 | ||
659 | // ---------------------------------------------------------------------------- | |
660 | // wxPopupMenuWindow input handling | |
661 | // ---------------------------------------------------------------------------- | |
662 | ||
663 | bool wxPopupMenuWindow::ProcessLeftDown(wxMouseEvent& event) | |
664 | { | |
665 | // wxPopupWindowHandler dismisses the window when the mouse is clicked | |
666 | // outside it which is usually just fine, but there is one case when we | |
667 | // don't want to do it: if the mouse was clicked on the parent submenu item | |
668 | // which opens this menu, so check for it | |
669 | ||
670 | wxPoint pos = event.GetPosition(); | |
671 | if ( HitTest(pos.x, pos.y) == wxHT_WINDOW_OUTSIDE ) | |
672 | { | |
673 | wxMenu *menu = m_menu->GetParent(); | |
674 | if ( menu ) | |
675 | { | |
676 | wxPopupMenuWindow *win = menu->m_popupMenu; | |
677 | ||
678 | wxCHECK_MSG( win, FALSE, _T("parent menu not shown?") ); | |
679 | ||
680 | pos = ClientToScreen(pos); | |
681 | if ( win->GetMenuItemFromPoint(win->ScreenToClient(pos)) ) | |
682 | { | |
683 | // eat the event | |
684 | return TRUE; | |
685 | } | |
686 | //else: it is outside the parent menu as well, do dismiss this one | |
687 | } | |
688 | } | |
689 | ||
690 | return FALSE; | |
691 | } | |
692 | ||
693 | void wxPopupMenuWindow::OnLeftUp(wxMouseEvent& event) | |
694 | { | |
695 | wxMenuItemList::Node *node = GetMenuItemFromPoint(event.GetPosition()); | |
696 | if ( node ) | |
697 | { | |
698 | ActivateItem(node->GetData(), WithMouse); | |
699 | } | |
700 | } | |
701 | ||
702 | void wxPopupMenuWindow::OnMouseMove(wxMouseEvent& event) | |
703 | { | |
704 | const wxPoint pt = event.GetPosition(); | |
705 | ||
706 | // we need to ignore extra mouse events: example when this happens is when | |
707 | // the mouse is on the menu and we open a submenu from keyboard - Windows | |
708 | // then sends us a dummy mouse move event, we (correctly) determine that it | |
709 | // happens in the parent menu and so immediately close the just opened | |
710 | // submenu! | |
711 | #ifdef __WXMSW__ | |
712 | static wxPoint s_ptLast; | |
713 | wxPoint ptCur = ClientToScreen(pt); | |
714 | if ( ptCur == s_ptLast ) | |
715 | { | |
716 | return; | |
717 | } | |
718 | ||
719 | s_ptLast = ptCur; | |
720 | #endif // __WXMSW__ | |
721 | ||
722 | ProcessMouseMove(pt); | |
723 | ||
724 | event.Skip(); | |
725 | } | |
726 | ||
727 | void wxPopupMenuWindow::ProcessMouseMove(const wxPoint& pt) | |
728 | { | |
729 | wxMenuItemList::Node *node = GetMenuItemFromPoint(pt); | |
730 | ||
731 | // don't reset current to NULL here, we only do it when the mouse leaves | |
732 | // the window (see below) | |
733 | if ( node ) | |
734 | { | |
735 | if ( node != m_nodeCurrent ) | |
736 | { | |
737 | ChangeCurrent(node); | |
738 | ||
739 | wxMenuItem *item = GetCurrentItem(); | |
740 | if ( CanOpen(item) ) | |
741 | { | |
742 | OpenSubmenu(item, WithMouse); | |
743 | } | |
744 | } | |
745 | //else: same item, nothing to do | |
746 | } | |
747 | else // not on an item | |
748 | { | |
749 | // the last open submenu forwards the mouse move messages to its | |
750 | // parent, so if the mouse moves to another item of the parent menu, | |
751 | // this menu is closed and this other item is selected - in the similar | |
752 | // manner, the top menu forwards the mouse moves to the menubar which | |
753 | // allows to select another top level menu by just moving the mouse | |
754 | ||
755 | // we need to translate our client coords to the client coords of the | |
756 | // window we forward this event to | |
757 | wxPoint ptScreen = ClientToScreen(pt); | |
758 | ||
759 | // if the mouse is outside this menu, let the parent one to | |
760 | // process it | |
761 | wxMenu *menuParent = m_menu->GetParent(); | |
762 | if ( menuParent ) | |
763 | { | |
764 | wxPopupMenuWindow *win = menuParent->m_popupMenu; | |
765 | ||
766 | // if we're shown, the parent menu must be also shown | |
767 | wxCHECK_RET( win, _T("parent menu is not shown?") ); | |
768 | ||
769 | win->ProcessMouseMove(win->ScreenToClient(ptScreen)); | |
770 | } | |
771 | else // no parent menu | |
772 | { | |
773 | wxMenuBar *menubar = m_menu->GetMenuBar(); | |
774 | if ( menubar ) | |
775 | { | |
776 | if ( menubar->ProcessMouseEvent( | |
777 | menubar->ScreenToClient(ptScreen)) ) | |
778 | { | |
779 | // menubar has closed this menu and opened another one, probably | |
780 | return; | |
781 | } | |
782 | } | |
783 | } | |
784 | //else: top level popup menu, no other processing to do | |
785 | } | |
786 | } | |
787 | ||
788 | void wxPopupMenuWindow::OnMouseLeave(wxMouseEvent& event) | |
789 | { | |
790 | // due to the artefact of mouse events generation under MSW, we actually | |
791 | // may get the mouse leave event after the menu had been already dismissed | |
792 | // and calling ChangeCurrent() would then assert, so don't do it | |
793 | if ( IsShown() ) | |
794 | { | |
795 | // we shouldn't change the current them if our submenu is opened and | |
796 | // mouse moved there, in this case the submenu is responsable for | |
797 | // handling it | |
798 | bool resetCurrent; | |
799 | if ( HasOpenSubmenu() ) | |
800 | { | |
801 | wxMenuItem *item = GetCurrentItem(); | |
802 | wxCHECK_RET( CanOpen(item), _T("where is our open submenu?") ); | |
803 | ||
804 | wxPopupMenuWindow *win = item->GetSubMenu()->m_popupMenu; | |
805 | wxCHECK_RET( win, _T("submenu is opened but not shown?") ); | |
806 | ||
807 | // only handle this event if the mouse is not inside the submenu | |
808 | wxPoint pt = ClientToScreen(event.GetPosition()); | |
809 | resetCurrent = | |
810 | win->HitTest(win->ScreenToClient(pt)) == wxHT_WINDOW_OUTSIDE; | |
811 | } | |
812 | else | |
813 | { | |
814 | // this menu is the last opened | |
815 | resetCurrent = TRUE; | |
816 | } | |
817 | ||
818 | if ( resetCurrent ) | |
819 | { | |
820 | ChangeCurrent(NULL); | |
821 | } | |
822 | } | |
823 | ||
824 | event.Skip(); | |
825 | } | |
826 | ||
827 | void wxPopupMenuWindow::OnKeyDown(wxKeyEvent& event) | |
828 | { | |
829 | if ( !ProcessKeyDown(event.GetKeyCode()) ) | |
830 | { | |
831 | event.Skip(); | |
832 | } | |
833 | } | |
834 | ||
835 | bool wxPopupMenuWindow::ProcessKeyDown(int key) | |
836 | { | |
837 | wxMenuItem *item = GetCurrentItem(); | |
838 | ||
839 | // first let the opened submenu to have it (no test for IsEnabled() here, | |
840 | // the keys navigate even in a disabled submenu if we had somehow managed | |
841 | // to open it inspit of this) | |
842 | if ( HasOpenSubmenu() ) | |
843 | { | |
844 | wxCHECK_MSG( CanOpen(item), FALSE, | |
845 | _T("has open submenu but another item selected?") ); | |
846 | ||
847 | if ( item->GetSubMenu()->ProcessKeyDown(key) ) | |
848 | return TRUE; | |
849 | } | |
850 | ||
851 | bool processed = TRUE; | |
852 | ||
853 | // handle the up/down arrows, home, end, esc and return here, pass the | |
854 | // left/right arrows to the menu bar except when the right arrow can be | |
855 | // used to open a submenu | |
856 | switch ( key ) | |
857 | { | |
858 | case WXK_LEFT: | |
859 | // if we're not a top level menu, close us, else leave this to the | |
860 | // menubar | |
861 | if ( !m_menu->GetParent() ) | |
862 | { | |
863 | processed = FALSE; | |
864 | break; | |
865 | } | |
866 | ||
867 | // fall through | |
868 | ||
869 | case WXK_ESCAPE: | |
870 | // close just this menu | |
871 | Dismiss(); | |
872 | HandleDismiss(FALSE); | |
873 | break; | |
874 | ||
875 | case WXK_RETURN: | |
876 | processed = ActivateItem(item); | |
877 | break; | |
878 | ||
879 | case WXK_HOME: | |
880 | ChangeCurrent(m_menu->GetMenuItems().GetFirst()); | |
881 | break; | |
882 | ||
883 | case WXK_END: | |
884 | ChangeCurrent(m_menu->GetMenuItems().GetLast()); | |
885 | break; | |
886 | ||
887 | case WXK_UP: | |
888 | case WXK_DOWN: | |
889 | { | |
890 | bool up = key == WXK_UP; | |
891 | ||
892 | wxMenuItemList::Node *nodeStart = up ? GetPrevNode() | |
893 | : GetNextNode(), | |
894 | *node = nodeStart; | |
895 | while ( node && node->GetData()->IsSeparator() ) | |
896 | { | |
897 | node = up ? GetPrevNode(node) : GetNextNode(node); | |
898 | ||
899 | if ( node == nodeStart ) | |
900 | { | |
901 | // nothing but separators and disabled items in this | |
902 | // menu, break out | |
903 | node = NULL; | |
904 | } | |
905 | } | |
906 | ||
907 | if ( node ) | |
908 | { | |
909 | ChangeCurrent(node); | |
910 | } | |
911 | else | |
912 | { | |
913 | processed = FALSE; | |
914 | } | |
915 | } | |
916 | break; | |
917 | ||
918 | case WXK_RIGHT: | |
919 | // don't try to reopen an already opened menu | |
920 | if ( !HasOpenSubmenu() && CanOpen(item) ) | |
921 | { | |
922 | OpenSubmenu(item); | |
923 | } | |
924 | else | |
925 | { | |
926 | processed = FALSE; | |
927 | } | |
928 | break; | |
929 | ||
930 | default: | |
931 | // look for the menu item starting with this letter | |
932 | if ( wxIsalnum(key) ) | |
933 | { | |
934 | // we want to start from the item after this one because | |
935 | // if we're already on the item with the given accel we want to | |
936 | // go to the next one, not to stay in place | |
937 | wxMenuItemList::Node *nodeStart = GetNextNode(); | |
938 | ||
939 | // do we have more than one item with this accel? | |
940 | bool notUnique = FALSE; | |
941 | ||
942 | // translate everything to lower case before comparing | |
943 | wxChar chAccel = wxTolower(key); | |
944 | ||
945 | // loop through all items searching for the item with this | |
946 | // accel | |
947 | wxMenuItemList::Node *node = nodeStart, | |
948 | *nodeFound = NULL; | |
949 | for ( ;; ) | |
950 | { | |
951 | item = node->GetData(); | |
952 | ||
953 | int idxAccel = item->GetAccelIndex(); | |
954 | if ( idxAccel != -1 && | |
955 | wxTolower(item->GetLabel()[(size_t)idxAccel]) | |
956 | == chAccel ) | |
957 | { | |
958 | // ok, found an item with this accel | |
959 | if ( !nodeFound ) | |
960 | { | |
961 | // store it but continue searching as we need to | |
962 | // know if it's the only item with this accel or if | |
963 | // there are more | |
964 | nodeFound = node; | |
965 | } | |
966 | else // we already had found such item | |
967 | { | |
968 | notUnique = TRUE; | |
969 | ||
970 | // no need to continue further, we won't find | |
971 | // anything we don't already know | |
972 | break; | |
973 | } | |
974 | } | |
975 | ||
976 | // we want to iterate over all items wrapping around if | |
977 | // necessary | |
978 | node = GetNextNode(node); | |
979 | if ( node == nodeStart ) | |
980 | { | |
981 | // we've seen all nodes | |
982 | break; | |
983 | } | |
984 | } | |
985 | ||
986 | if ( nodeFound ) | |
987 | { | |
988 | item = nodeFound->GetData(); | |
989 | ||
990 | // go to this item anyhow | |
991 | ChangeCurrent(nodeFound); | |
992 | ||
993 | if ( !notUnique && item->IsEnabled() ) | |
994 | { | |
995 | // unique item with this accel - activate it | |
996 | processed = ActivateItem(item); | |
997 | } | |
998 | //else: just select it but don't activate as the user might | |
999 | // have wanted to activate another item | |
1000 | ||
1001 | // skip "processed = FALSE" below | |
1002 | break; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | processed = FALSE; | |
1007 | } | |
1008 | ||
1009 | return processed; | |
1010 | } | |
1011 | ||
1012 | // ---------------------------------------------------------------------------- | |
1013 | // wxMenu | |
1014 | // ---------------------------------------------------------------------------- | |
1015 | ||
1016 | void wxMenu::Init() | |
1017 | { | |
1018 | m_geometry = NULL; | |
1019 | ||
1020 | m_popupMenu = NULL; | |
1021 | } | |
1022 | ||
1023 | wxMenu::~wxMenu() | |
1024 | { | |
1025 | delete m_geometry; | |
1026 | delete m_popupMenu; | |
1027 | } | |
1028 | ||
1029 | // ---------------------------------------------------------------------------- | |
1030 | // wxMenu and wxMenuGeometryInfo | |
1031 | // ---------------------------------------------------------------------------- | |
1032 | ||
1033 | wxMenuGeometryInfo::~wxMenuGeometryInfo() | |
1034 | { | |
1035 | } | |
1036 | ||
1037 | const wxMenuGeometryInfo& wxMenu::GetGeometryInfo() const | |
1038 | { | |
1039 | if ( !m_geometry ) | |
1040 | { | |
1041 | if ( m_popupMenu ) | |
1042 | { | |
1043 | wxConstCast(this, wxMenu)->m_geometry = | |
1044 | m_popupMenu->GetRenderer()->GetMenuGeometry(m_popupMenu, *this); | |
1045 | } | |
1046 | else | |
1047 | { | |
1048 | wxFAIL_MSG( _T("can't get geometry without window") ); | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | return *m_geometry; | |
1053 | } | |
1054 | ||
1055 | void wxMenu::InvalidateGeometryInfo() | |
1056 | { | |
1057 | if ( m_geometry ) | |
1058 | { | |
1059 | delete m_geometry; | |
1060 | m_geometry = NULL; | |
1061 | } | |
1062 | } | |
1063 | ||
1064 | // ---------------------------------------------------------------------------- | |
1065 | // wxMenu adding/removing items | |
1066 | // ---------------------------------------------------------------------------- | |
1067 | ||
1068 | void wxMenu::OnItemAdded(wxMenuItem *item) | |
1069 | { | |
1070 | InvalidateGeometryInfo(); | |
1071 | ||
1072 | #if wxUSE_ACCEL | |
1073 | AddAccelFor(item); | |
1074 | #endif // wxUSE_ACCEL | |
1075 | ||
1076 | // the submenus of a popup menu should have the same invoking window as it | |
1077 | // has | |
1078 | if ( m_invokingWindow && item->IsSubMenu() ) | |
1079 | { | |
1080 | item->GetSubMenu()->SetInvokingWindow(m_invokingWindow); | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | bool wxMenu::DoAppend(wxMenuItem *item) | |
1085 | { | |
1086 | if ( !wxMenuBase::DoAppend(item) ) | |
1087 | return FALSE; | |
1088 | ||
1089 | OnItemAdded(item); | |
1090 | ||
1091 | return TRUE; | |
1092 | } | |
1093 | ||
1094 | bool wxMenu::DoInsert(size_t pos, wxMenuItem *item) | |
1095 | { | |
1096 | if ( !wxMenuBase::DoInsert(pos, item) ) | |
1097 | return FALSE; | |
1098 | ||
1099 | OnItemAdded(item); | |
1100 | ||
1101 | return TRUE; | |
1102 | } | |
1103 | ||
1104 | wxMenuItem *wxMenu::DoRemove(wxMenuItem *item) | |
1105 | { | |
1106 | wxMenuItem *itemOld = wxMenuBase::DoRemove(item); | |
1107 | ||
1108 | if ( itemOld ) | |
1109 | { | |
1110 | InvalidateGeometryInfo(); | |
1111 | ||
1112 | #if wxUSE_ACCEL | |
1113 | RemoveAccelFor(item); | |
1114 | #endif // wxUSE_ACCEL | |
1115 | } | |
1116 | ||
1117 | return itemOld; | |
1118 | } | |
1119 | ||
1120 | // ---------------------------------------------------------------------------- | |
1121 | // wxMenu attaching/detaching | |
1122 | // ---------------------------------------------------------------------------- | |
1123 | ||
1124 | void wxMenu::Attach(wxMenuBarBase *menubar) | |
1125 | { | |
1126 | wxMenuBase::Attach(menubar); | |
1127 | ||
1128 | wxCHECK_RET( m_menuBar, _T("menubar can't be NULL after attaching") ); | |
1129 | ||
1130 | // unfortunately, we can't use m_menuBar->GetEventHandler() here because, | |
1131 | // if the menubar is currently showing a menu, its event handler is a | |
1132 | // temporary one installed by wxPopupWindow and so will disappear soon any | |
1133 | // any attempts to use it from the newly attached menu would result in a | |
1134 | // crash | |
1135 | // | |
1136 | // so we use the menubar itself, even if it's a pity as it means we can't | |
1137 | // redirect all menu events by changing the menubar handler (FIXME) | |
1138 | SetNextHandler(m_menuBar); | |
1139 | } | |
1140 | ||
1141 | void wxMenu::Detach() | |
1142 | { | |
1143 | wxMenuBase::Detach(); | |
1144 | } | |
1145 | ||
1146 | // ---------------------------------------------------------------------------- | |
1147 | // wxMenu misc functions | |
1148 | // ---------------------------------------------------------------------------- | |
1149 | ||
1150 | wxWindow *wxMenu::GetRootWindow() const | |
1151 | { | |
1152 | if ( m_menuBar ) | |
1153 | { | |
1154 | // simple case - a normal menu attached to the menubar | |
1155 | return m_menuBar; | |
1156 | } | |
1157 | ||
1158 | // we're a popup menu but the trouble is that only the top level popup menu | |
1159 | // has a pointer to the invoking window, so we must walk up the menu chain | |
1160 | // if needed | |
1161 | wxWindow *win = GetInvokingWindow(); | |
1162 | if ( win ) | |
1163 | { | |
1164 | // we already have it | |
1165 | return win; | |
1166 | } | |
1167 | ||
1168 | wxMenu *menu = GetParent(); | |
1169 | while ( menu ) | |
1170 | { | |
1171 | // We are a submenu of a menu of a menubar | |
1172 | if (menu->GetMenuBar()) | |
1173 | return menu->GetMenuBar(); | |
1174 | ||
1175 | win = menu->GetInvokingWindow(); | |
1176 | if ( win ) | |
1177 | break; | |
1178 | ||
1179 | menu = menu->GetParent(); | |
1180 | } | |
1181 | ||
1182 | // we're probably going to crash in the caller anyhow, but try to detect | |
1183 | // this error as soon as possible | |
1184 | wxASSERT_MSG( win, _T("menu without any associated window?") ); | |
1185 | ||
1186 | // also remember it in this menu so that we don't have to search for it the | |
1187 | // next time | |
1188 | wxConstCast(this, wxMenu)->m_invokingWindow = win; | |
1189 | ||
1190 | return win; | |
1191 | } | |
1192 | ||
1193 | wxRenderer *wxMenu::GetRenderer() const | |
1194 | { | |
1195 | // we're going to crash without renderer! | |
1196 | wxCHECK_MSG( m_popupMenu, NULL, _T("neither popup nor menubar menu?") ); | |
1197 | ||
1198 | return m_popupMenu->GetRenderer(); | |
1199 | } | |
1200 | ||
1201 | void wxMenu::RefreshItem(wxMenuItem *item) | |
1202 | { | |
1203 | // the item geometry changed, so our might have changed as well | |
1204 | InvalidateGeometryInfo(); | |
1205 | ||
1206 | if ( IsShown() ) | |
1207 | { | |
1208 | // this would be a bug in IsShown() | |
1209 | wxCHECK_RET( m_popupMenu, _T("must have popup window if shown!") ); | |
1210 | ||
1211 | // recalc geometry to update the item height and such | |
1212 | (void)GetGeometryInfo(); | |
1213 | ||
1214 | m_popupMenu->RefreshItem(item); | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | // ---------------------------------------------------------------------------- | |
1219 | // wxMenu showing and hiding | |
1220 | // ---------------------------------------------------------------------------- | |
1221 | ||
1222 | bool wxMenu::IsShown() const | |
1223 | { | |
1224 | return m_popupMenu && m_popupMenu->IsShown(); | |
1225 | } | |
1226 | ||
1227 | void wxMenu::OnDismiss(bool dismissParent) | |
1228 | { | |
1229 | if ( m_menuParent ) | |
1230 | { | |
1231 | // always notify the parent about submenu disappearance | |
1232 | wxPopupMenuWindow *win = m_menuParent->m_popupMenu; | |
1233 | if ( win ) | |
1234 | { | |
1235 | win->OnSubmenuDismiss(); | |
1236 | } | |
1237 | else | |
1238 | { | |
1239 | wxFAIL_MSG( _T("parent menu not shown?") ); | |
1240 | } | |
1241 | ||
1242 | // and if we dismiss everything, propagate to parent | |
1243 | if ( dismissParent ) | |
1244 | { | |
1245 | // dismissParent is recursive | |
1246 | m_menuParent->Dismiss(); | |
1247 | m_menuParent->OnDismiss(TRUE); | |
1248 | } | |
1249 | } | |
1250 | else // no parent menu | |
1251 | { | |
1252 | // notify the menu bar if we're a top level menu | |
1253 | if ( m_menuBar ) | |
1254 | { | |
1255 | m_menuBar->OnDismissMenu(dismissParent); | |
1256 | } | |
1257 | else // popup menu | |
1258 | { | |
1259 | wxCHECK_RET( m_invokingWindow, _T("what kind of menu is this?") ); | |
1260 | ||
1261 | m_invokingWindow->DismissPopupMenu(); | |
1262 | ||
1263 | // Why reset it here? We need it for sending the event to... | |
1264 | // SetInvokingWindow(NULL); | |
1265 | } | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | void wxMenu::Popup(const wxPoint& pos, const wxSize& size, bool selectFirst) | |
1270 | { | |
1271 | // create the popup window if not done yet | |
1272 | if ( !m_popupMenu ) | |
1273 | { | |
1274 | m_popupMenu = new wxPopupMenuWindow(GetRootWindow(), this); | |
1275 | } | |
1276 | ||
1277 | // select the first item unless disabled | |
1278 | if ( selectFirst ) | |
1279 | { | |
1280 | m_popupMenu->SelectFirst(); | |
1281 | } | |
1282 | ||
1283 | // the geometry might have changed since the last time we were shown, so | |
1284 | // always resize | |
1285 | m_popupMenu->SetClientSize(GetGeometryInfo().GetSize()); | |
1286 | ||
1287 | // position it as specified | |
1288 | m_popupMenu->Position(pos, size); | |
1289 | ||
1290 | // the menu can't have the focus itself (it is a Windows limitation), so | |
1291 | // always keep the focus at the originating window | |
1292 | wxWindow *focus = GetRootWindow(); | |
1293 | ||
1294 | wxASSERT_MSG( focus, _T("no window to keep focus on?") ); | |
1295 | ||
1296 | // and show it | |
1297 | m_popupMenu->Popup(focus); | |
1298 | } | |
1299 | ||
1300 | void wxMenu::Dismiss() | |
1301 | { | |
1302 | wxCHECK_RET( IsShown(), _T("can't dismiss hidden menu") ); | |
1303 | ||
1304 | m_popupMenu->Dismiss(); | |
1305 | } | |
1306 | ||
1307 | // ---------------------------------------------------------------------------- | |
1308 | // wxMenu event processing | |
1309 | // ---------------------------------------------------------------------------- | |
1310 | ||
1311 | bool wxMenu::ProcessKeyDown(int key) | |
1312 | { | |
1313 | wxCHECK_MSG( m_popupMenu, FALSE, | |
1314 | _T("can't process key events if not shown") ); | |
1315 | ||
1316 | return m_popupMenu->ProcessKeyDown(key); | |
1317 | } | |
1318 | ||
1319 | bool wxMenu::ClickItem(wxMenuItem *item) | |
1320 | { | |
1321 | int isChecked; | |
1322 | if ( item->IsCheckable() ) | |
1323 | { | |
1324 | // update the item state | |
1325 | isChecked = !item->IsChecked(); | |
1326 | ||
1327 | item->Check(isChecked != 0); | |
1328 | } | |
1329 | else | |
1330 | { | |
1331 | // not applicabled | |
1332 | isChecked = -1; | |
1333 | } | |
1334 | ||
1335 | return SendEvent(item->GetId(), isChecked); | |
1336 | } | |
1337 | ||
1338 | // ---------------------------------------------------------------------------- | |
1339 | // wxMenu accel support | |
1340 | // ---------------------------------------------------------------------------- | |
1341 | ||
1342 | #if wxUSE_ACCEL | |
1343 | ||
1344 | bool wxMenu::ProcessAccelEvent(const wxKeyEvent& event) | |
1345 | { | |
1346 | // do we have an item for this accel? | |
1347 | wxMenuItem *item = m_accelTable.GetMenuItem(event); | |
1348 | if ( item && item->IsEnabled() ) | |
1349 | { | |
1350 | return ClickItem(item); | |
1351 | } | |
1352 | ||
1353 | // try our submenus | |
1354 | for ( wxMenuItemList::Node *node = GetMenuItems().GetFirst(); | |
1355 | node; | |
1356 | node = node->GetNext() ) | |
1357 | { | |
1358 | const wxMenuItem *item = node->GetData(); | |
1359 | if ( item->IsSubMenu() && item->IsEnabled() ) | |
1360 | { | |
1361 | // try its elements | |
1362 | if ( item->GetSubMenu()->ProcessAccelEvent(event) ) | |
1363 | { | |
1364 | return TRUE; | |
1365 | } | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | return FALSE; | |
1370 | } | |
1371 | ||
1372 | void wxMenu::AddAccelFor(wxMenuItem *item) | |
1373 | { | |
1374 | wxAcceleratorEntry *accel = item->GetAccel(); | |
1375 | if ( accel ) | |
1376 | { | |
1377 | accel->SetMenuItem(item); | |
1378 | ||
1379 | m_accelTable.Add(*accel); | |
1380 | ||
1381 | delete accel; | |
1382 | } | |
1383 | } | |
1384 | ||
1385 | void wxMenu::RemoveAccelFor(wxMenuItem *item) | |
1386 | { | |
1387 | wxAcceleratorEntry *accel = item->GetAccel(); | |
1388 | if ( accel ) | |
1389 | { | |
1390 | m_accelTable.Remove(*accel); | |
1391 | ||
1392 | delete accel; | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | #endif // wxUSE_ACCEL | |
1397 | ||
1398 | // ---------------------------------------------------------------------------- | |
1399 | // wxMenuItem construction | |
1400 | // ---------------------------------------------------------------------------- | |
1401 | ||
1402 | wxMenuItem::wxMenuItem(wxMenu *parentMenu, | |
1403 | int id, | |
1404 | const wxString& text, | |
1405 | const wxString& help, | |
1406 | wxItemKind kind, | |
1407 | wxMenu *subMenu) | |
1408 | : wxMenuItemBase(parentMenu, id, text, help, kind, subMenu) | |
1409 | { | |
1410 | m_posY = | |
1411 | m_height = -1; | |
1412 | ||
1413 | UpdateAccelInfo(); | |
1414 | } | |
1415 | ||
1416 | wxMenuItem::~wxMenuItem() | |
1417 | { | |
1418 | } | |
1419 | ||
1420 | // ---------------------------------------------------------------------------- | |
1421 | // wxMenuItemBase methods implemented here | |
1422 | // ---------------------------------------------------------------------------- | |
1423 | ||
1424 | /* static */ | |
1425 | wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu, | |
1426 | int id, | |
1427 | const wxString& name, | |
1428 | const wxString& help, | |
1429 | wxItemKind kind, | |
1430 | wxMenu *subMenu) | |
1431 | { | |
1432 | return new wxMenuItem(parentMenu, id, name, help, kind, subMenu); | |
1433 | } | |
1434 | ||
1435 | /* static */ | |
1436 | wxString wxMenuItemBase::GetLabelFromText(const wxString& text) | |
1437 | { | |
1438 | return wxStripMenuCodes(text); | |
1439 | } | |
1440 | ||
1441 | // ---------------------------------------------------------------------------- | |
1442 | // wxMenuItem operations | |
1443 | // ---------------------------------------------------------------------------- | |
1444 | ||
1445 | void wxMenuItem::NotifyMenu() | |
1446 | { | |
1447 | m_parentMenu->RefreshItem(this); | |
1448 | } | |
1449 | ||
1450 | void wxMenuItem::UpdateAccelInfo() | |
1451 | { | |
1452 | m_indexAccel = wxControl::FindAccelIndex(m_text); | |
1453 | ||
1454 | // will be empty if the text contains no TABs - ok | |
1455 | m_strAccel = m_text.AfterFirst(_T('\t')); | |
1456 | } | |
1457 | ||
1458 | void wxMenuItem::SetText(const wxString& text) | |
1459 | { | |
1460 | if ( text != m_text ) | |
1461 | { | |
1462 | // first call the base class version to change m_text | |
1463 | wxMenuItemBase::SetText(text); | |
1464 | ||
1465 | UpdateAccelInfo(); | |
1466 | ||
1467 | NotifyMenu(); | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | void wxMenuItem::SetCheckable(bool checkable) | |
1472 | { | |
1473 | if ( checkable != IsCheckable() ) | |
1474 | { | |
1475 | wxMenuItemBase::SetCheckable(checkable); | |
1476 | ||
1477 | NotifyMenu(); | |
1478 | } | |
1479 | } | |
1480 | ||
1481 | void wxMenuItem::SetBitmaps(const wxBitmap& bmpChecked, | |
1482 | const wxBitmap& bmpUnchecked) | |
1483 | { | |
1484 | m_bmpChecked = bmpChecked; | |
1485 | m_bmpUnchecked = bmpUnchecked; | |
1486 | ||
1487 | NotifyMenu(); | |
1488 | } | |
1489 | ||
1490 | void wxMenuItem::Enable(bool enable) | |
1491 | { | |
1492 | if ( enable != m_isEnabled ) | |
1493 | { | |
1494 | wxMenuItemBase::Enable(enable); | |
1495 | ||
1496 | NotifyMenu(); | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | void wxMenuItem::Check(bool check) | |
1501 | { | |
1502 | if ( check != m_isChecked ) | |
1503 | { | |
1504 | wxMenuItemBase::Check(check); | |
1505 | ||
1506 | NotifyMenu(); | |
1507 | } | |
1508 | } | |
1509 | ||
1510 | // ---------------------------------------------------------------------------- | |
1511 | // wxMenuBar creation | |
1512 | // ---------------------------------------------------------------------------- | |
1513 | ||
1514 | void wxMenuBar::Init() | |
1515 | { | |
1516 | m_frameLast = NULL; | |
1517 | ||
1518 | m_current = -1; | |
1519 | ||
1520 | m_menuShown = NULL; | |
1521 | ||
1522 | m_shouldShowMenu = FALSE; | |
1523 | ||
1524 | m_windowStyle |= wxNO_FULL_REPAINT_ON_RESIZE; | |
1525 | } | |
1526 | ||
1527 | void wxMenuBar::Attach(wxFrame *frame) | |
1528 | { | |
1529 | // maybe you really wanted to call Detach()? | |
1530 | wxCHECK_RET( frame, _T("wxMenuBar::Attach(NULL) called") ); | |
1531 | ||
1532 | wxMenuBarBase::Attach(frame); | |
1533 | ||
1534 | if ( IsCreated() ) | |
1535 | { | |
1536 | // reparent if necessary | |
1537 | if ( m_frameLast != frame ) | |
1538 | { | |
1539 | Reparent(frame); | |
1540 | } | |
1541 | ||
1542 | // show it back - was hidden by Detach() | |
1543 | Show(); | |
1544 | } | |
1545 | else // not created yet, do it now | |
1546 | { | |
1547 | // we have no way to return the error from here anyhow :-( | |
1548 | (void)Create(frame, -1); | |
1549 | ||
1550 | SetCursor(wxCURSOR_ARROW); | |
1551 | ||
1552 | SetFont(wxSystemSettings::GetFont(wxSYS_SYSTEM_FONT)); | |
1553 | ||
1554 | // calculate and set our height (it won't be changed any more) | |
1555 | SetSize(-1, GetBestSize().y); | |
1556 | } | |
1557 | ||
1558 | // remember the last frame which had us to avoid unnecessarily reparenting | |
1559 | // above | |
1560 | m_frameLast = frame; | |
1561 | } | |
1562 | ||
1563 | void wxMenuBar::Detach() | |
1564 | { | |
1565 | // don't delete the window because we may be reattached later, just hide it | |
1566 | if ( m_frameLast ) | |
1567 | { | |
1568 | Hide(); | |
1569 | } | |
1570 | ||
1571 | wxMenuBarBase::Detach(); | |
1572 | } | |
1573 | ||
1574 | wxMenuBar::~wxMenuBar() | |
1575 | { | |
1576 | } | |
1577 | ||
1578 | // ---------------------------------------------------------------------------- | |
1579 | // wxMenuBar adding/removing items | |
1580 | // ---------------------------------------------------------------------------- | |
1581 | ||
1582 | bool wxMenuBar::Append(wxMenu *menu, const wxString& title) | |
1583 | { | |
1584 | return Insert(GetCount(), menu, title); | |
1585 | } | |
1586 | ||
1587 | bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title) | |
1588 | { | |
1589 | if ( !wxMenuBarBase::Insert(pos, menu, title) ) | |
1590 | return FALSE; | |
1591 | ||
1592 | wxMenuInfo *info = new wxMenuInfo(title); | |
1593 | m_menuInfos.Insert(info, pos); | |
1594 | ||
1595 | RefreshAllItemsAfter(pos); | |
1596 | ||
1597 | return TRUE; | |
1598 | } | |
1599 | ||
1600 | wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title) | |
1601 | { | |
1602 | wxMenu *menuOld = wxMenuBarBase::Replace(pos, menu, title); | |
1603 | ||
1604 | if ( menuOld ) | |
1605 | { | |
1606 | wxMenuInfo& info = m_menuInfos[pos]; | |
1607 | ||
1608 | info.SetLabel(title); | |
1609 | ||
1610 | // even if the old menu was disabled, the new one is not any more | |
1611 | info.SetEnabled(); | |
1612 | ||
1613 | // even if we change only this one, the new label has different width, | |
1614 | // so we need to refresh everything beyond this item as well | |
1615 | RefreshAllItemsAfter(pos); | |
1616 | } | |
1617 | ||
1618 | return menuOld; | |
1619 | } | |
1620 | ||
1621 | wxMenu *wxMenuBar::Remove(size_t pos) | |
1622 | { | |
1623 | wxMenu *menuOld = wxMenuBarBase::Remove(pos); | |
1624 | ||
1625 | if ( menuOld ) | |
1626 | { | |
1627 | m_menuInfos.RemoveAt(pos); | |
1628 | ||
1629 | // this doesn't happen too often, so don't try to be too smart - just | |
1630 | // refresh everything | |
1631 | Refresh(); | |
1632 | } | |
1633 | ||
1634 | return menuOld; | |
1635 | } | |
1636 | ||
1637 | // ---------------------------------------------------------------------------- | |
1638 | // wxMenuBar top level menus access | |
1639 | // ---------------------------------------------------------------------------- | |
1640 | ||
1641 | wxCoord wxMenuBar::GetItemWidth(size_t pos) const | |
1642 | { | |
1643 | return m_menuInfos[pos].GetWidth(wxConstCast(this, wxMenuBar)); | |
1644 | } | |
1645 | ||
1646 | void wxMenuBar::EnableTop(size_t pos, bool enable) | |
1647 | { | |
1648 | wxCHECK_RET( pos < GetCount(), _T("invalid index in EnableTop") ); | |
1649 | ||
1650 | if ( enable != m_menuInfos[pos].IsEnabled() ) | |
1651 | { | |
1652 | m_menuInfos[pos].SetEnabled(enable); | |
1653 | ||
1654 | RefreshItem(pos); | |
1655 | } | |
1656 | //else: nothing to do | |
1657 | } | |
1658 | ||
1659 | bool wxMenuBar::IsEnabledTop(size_t pos) const | |
1660 | { | |
1661 | wxCHECK_MSG( pos < GetCount(), FALSE, _T("invalid index in IsEnabledTop") ); | |
1662 | ||
1663 | return m_menuInfos[pos].IsEnabled(); | |
1664 | } | |
1665 | ||
1666 | void wxMenuBar::SetLabelTop(size_t pos, const wxString& label) | |
1667 | { | |
1668 | wxCHECK_RET( pos < GetCount(), _T("invalid index in EnableTop") ); | |
1669 | ||
1670 | if ( label != m_menuInfos[pos].GetLabel() ) | |
1671 | { | |
1672 | m_menuInfos[pos].SetLabel(label); | |
1673 | ||
1674 | RefreshItem(pos); | |
1675 | } | |
1676 | //else: nothing to do | |
1677 | } | |
1678 | ||
1679 | wxString wxMenuBar::GetLabelTop(size_t pos) const | |
1680 | { | |
1681 | wxCHECK_MSG( pos < GetCount(), _T(""), _T("invalid index in GetLabelTop") ); | |
1682 | ||
1683 | return m_menuInfos[pos].GetLabel(); | |
1684 | } | |
1685 | ||
1686 | // ---------------------------------------------------------------------------- | |
1687 | // wxMenuBar drawing | |
1688 | // ---------------------------------------------------------------------------- | |
1689 | ||
1690 | void wxMenuBar::RefreshAllItemsAfter(size_t pos) | |
1691 | { | |
1692 | if ( !IsCreated() ) | |
1693 | { | |
1694 | // no need to refresh if nothing is shown yet | |
1695 | return; | |
1696 | } | |
1697 | ||
1698 | wxRect rect = GetItemRect(pos); | |
1699 | rect.width = GetClientSize().x - rect.x; | |
1700 | RefreshRect(rect); | |
1701 | } | |
1702 | ||
1703 | void wxMenuBar::RefreshItem(size_t pos) | |
1704 | { | |
1705 | wxCHECK_RET( pos != (size_t)-1, | |
1706 | _T("invalid item in wxMenuBar::RefreshItem") ); | |
1707 | ||
1708 | if ( !IsCreated() ) | |
1709 | { | |
1710 | // no need to refresh if nothing is shown yet | |
1711 | return; | |
1712 | } | |
1713 | ||
1714 | RefreshRect(GetItemRect(pos)); | |
1715 | } | |
1716 | ||
1717 | void wxMenuBar::DoDraw(wxControlRenderer *renderer) | |
1718 | { | |
1719 | wxDC& dc = renderer->GetDC(); | |
1720 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
1721 | ||
1722 | // redraw only the items which must be redrawn | |
1723 | ||
1724 | // we don't have to use GetUpdateClientRect() here because our client rect | |
1725 | // is the same as total one | |
1726 | wxRect rectUpdate = GetUpdateRegion().GetBox(); | |
1727 | ||
1728 | int flagsMenubar = GetStateFlags(); | |
1729 | ||
1730 | wxRect rect; | |
1731 | rect.y = 0; | |
1732 | rect.height = GetClientSize().y; | |
1733 | ||
1734 | wxCoord x = 0; | |
1735 | size_t count = GetCount(); | |
1736 | for ( size_t n = 0; n < count; n++ ) | |
1737 | { | |
1738 | if ( x > rectUpdate.GetRight() ) | |
1739 | { | |
1740 | // all remaining items are to the right of rectUpdate | |
1741 | break; | |
1742 | } | |
1743 | ||
1744 | rect.x = x; | |
1745 | rect.width = GetItemWidth(n); | |
1746 | x += rect.width; | |
1747 | if ( x < rectUpdate.x ) | |
1748 | { | |
1749 | // this item is still to the left of rectUpdate | |
1750 | continue; | |
1751 | } | |
1752 | ||
1753 | int flags = flagsMenubar; | |
1754 | if ( m_current != -1 && n == (size_t)m_current ) | |
1755 | { | |
1756 | flags |= wxCONTROL_SELECTED; | |
1757 | } | |
1758 | ||
1759 | if ( !IsEnabledTop(n) ) | |
1760 | { | |
1761 | flags |= wxCONTROL_DISABLED; | |
1762 | } | |
1763 | ||
1764 | GetRenderer()->DrawMenuBarItem | |
1765 | ( | |
1766 | dc, | |
1767 | rect, | |
1768 | m_menuInfos[n].GetLabel(), | |
1769 | flags, | |
1770 | m_menuInfos[n].GetAccelIndex() | |
1771 | ); | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | // ---------------------------------------------------------------------------- | |
1776 | // wxMenuBar geometry | |
1777 | // ---------------------------------------------------------------------------- | |
1778 | ||
1779 | wxRect wxMenuBar::GetItemRect(size_t pos) const | |
1780 | { | |
1781 | wxASSERT_MSG( pos < GetCount(), _T("invalid menu bar item index") ); | |
1782 | wxASSERT_MSG( IsCreated(), _T("can't call this method yet") ); | |
1783 | ||
1784 | wxRect rect; | |
1785 | rect.x = | |
1786 | rect.y = 0; | |
1787 | rect.height = GetClientSize().y; | |
1788 | ||
1789 | for ( size_t n = 0; n < pos; n++ ) | |
1790 | { | |
1791 | rect.x += GetItemWidth(n); | |
1792 | } | |
1793 | ||
1794 | rect.width = GetItemWidth(pos); | |
1795 | ||
1796 | return rect; | |
1797 | } | |
1798 | ||
1799 | wxSize wxMenuBar::DoGetBestClientSize() const | |
1800 | { | |
1801 | wxSize size; | |
1802 | if ( GetMenuCount() > 0 ) | |
1803 | { | |
1804 | wxClientDC dc(wxConstCast(this, wxMenuBar)); | |
1805 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
1806 | dc.GetTextExtent(GetLabelTop(0), &size.x, &size.y); | |
1807 | ||
1808 | // adjust for the renderer we use | |
1809 | size = GetRenderer()->GetMenuBarItemSize(size); | |
1810 | } | |
1811 | else // empty menubar | |
1812 | { | |
1813 | size.x = | |
1814 | size.y = 0; | |
1815 | } | |
1816 | ||
1817 | // the width is arbitrary, of course, for horizontal menubar | |
1818 | size.x = 100; | |
1819 | ||
1820 | return size; | |
1821 | } | |
1822 | ||
1823 | int wxMenuBar::GetMenuFromPoint(const wxPoint& pos) const | |
1824 | { | |
1825 | if ( pos.x < 0 || pos.y < 0 || pos.y > GetClientSize().y ) | |
1826 | return -1; | |
1827 | ||
1828 | // do find it | |
1829 | wxCoord x = 0; | |
1830 | size_t count = GetCount(); | |
1831 | for ( size_t item = 0; item < count; item++ ) | |
1832 | { | |
1833 | x += GetItemWidth(item); | |
1834 | ||
1835 | if ( x > pos.x ) | |
1836 | { | |
1837 | return item; | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | // to the right of the last menu item | |
1842 | return -1; | |
1843 | } | |
1844 | ||
1845 | // ---------------------------------------------------------------------------- | |
1846 | // wxMenuBar menu operations | |
1847 | // ---------------------------------------------------------------------------- | |
1848 | ||
1849 | void wxMenuBar::SelectMenu(size_t pos) | |
1850 | { | |
1851 | SetFocus(); | |
1852 | wxLogTrace(_T("mousecapture"), _T("Capturing mouse from wxMenuBar::SelectMenu")); | |
1853 | CaptureMouse(); | |
1854 | ||
1855 | DoSelectMenu(pos); | |
1856 | } | |
1857 | ||
1858 | void wxMenuBar::DoSelectMenu(size_t pos) | |
1859 | { | |
1860 | wxCHECK_RET( pos < GetCount(), _T("invalid menu index in DoSelectMenu") ); | |
1861 | ||
1862 | int posOld = m_current; | |
1863 | ||
1864 | m_current = pos; | |
1865 | ||
1866 | if ( posOld != -1 ) | |
1867 | { | |
1868 | // close the previous menu | |
1869 | if ( IsShowingMenu() ) | |
1870 | { | |
1871 | // restore m_shouldShowMenu flag after DismissMenu() which resets | |
1872 | // it to FALSE | |
1873 | bool old = m_shouldShowMenu; | |
1874 | ||
1875 | DismissMenu(); | |
1876 | ||
1877 | m_shouldShowMenu = old; | |
1878 | } | |
1879 | ||
1880 | RefreshItem((size_t)posOld); | |
1881 | } | |
1882 | ||
1883 | RefreshItem(pos); | |
1884 | } | |
1885 | ||
1886 | void wxMenuBar::PopupMenu(size_t pos) | |
1887 | { | |
1888 | wxCHECK_RET( pos < GetCount(), _T("invalid menu index in PopupCurrentMenu") ); | |
1889 | ||
1890 | SetFocus(); | |
1891 | DoSelectMenu(pos); | |
1892 | PopupCurrentMenu(); | |
1893 | } | |
1894 | ||
1895 | // ---------------------------------------------------------------------------- | |
1896 | // wxMenuBar input handing | |
1897 | // ---------------------------------------------------------------------------- | |
1898 | ||
1899 | /* | |
1900 | Note that wxMenuBar doesn't use wxInputHandler but handles keyboard and | |
1901 | mouse in the same way under all platforms. This is because it doesn't derive | |
1902 | from wxControl (which works with input handlers) but directly from wxWindow. | |
1903 | ||
1904 | Also, menu bar input handling is rather simple, so maybe it's not really | |
1905 | worth making it themeable - at least I've decided against doing it now as it | |
1906 | would merging the changes back into trunk more difficult. But it still could | |
1907 | be done later if really needed. | |
1908 | */ | |
1909 | ||
1910 | void wxMenuBar::OnKillFocus(wxFocusEvent& event) | |
1911 | { | |
1912 | if ( m_current != -1 ) | |
1913 | { | |
1914 | RefreshItem((size_t)m_current); | |
1915 | ||
1916 | m_current = -1; | |
1917 | } | |
1918 | ||
1919 | event.Skip(); | |
1920 | } | |
1921 | ||
1922 | void wxMenuBar::OnLeftDown(wxMouseEvent& event) | |
1923 | { | |
1924 | if ( HasCapture() ) | |
1925 | { | |
1926 | OnDismiss(); | |
1927 | ||
1928 | event.Skip(); | |
1929 | } | |
1930 | else // we didn't have mouse capture, capture it now | |
1931 | { | |
1932 | m_current = GetMenuFromPoint(event.GetPosition()); | |
1933 | if ( m_current == -1 ) | |
1934 | { | |
1935 | // unfortunately, we can't prevent wxMSW from giving us the focus, | |
1936 | // so we can only give it back | |
1937 | GiveAwayFocus(); | |
1938 | } | |
1939 | else // on item | |
1940 | { | |
1941 | wxLogTrace(_T("mousecapture"), _T("Capturing mouse from wxMenuBar::OnLeftDown")); | |
1942 | CaptureMouse(); | |
1943 | ||
1944 | // show it as selected | |
1945 | RefreshItem((size_t)m_current); | |
1946 | ||
1947 | // show the menu | |
1948 | PopupCurrentMenu(FALSE /* don't select first item - as Windows does */); | |
1949 | } | |
1950 | } | |
1951 | } | |
1952 | ||
1953 | void wxMenuBar::OnMouseMove(wxMouseEvent& event) | |
1954 | { | |
1955 | if ( HasCapture() ) | |
1956 | { | |
1957 | (void)ProcessMouseEvent(event.GetPosition()); | |
1958 | } | |
1959 | else | |
1960 | { | |
1961 | event.Skip(); | |
1962 | } | |
1963 | } | |
1964 | ||
1965 | bool wxMenuBar::ProcessMouseEvent(const wxPoint& pt) | |
1966 | { | |
1967 | // a hack to ignore the extra mouse events MSW sends us: this is similar to | |
1968 | // wxUSE_MOUSEEVENT_HACK in wxWin itself but it isn't enough for us here as | |
1969 | // we get the messages from different windows (old and new popup menus for | |
1970 | // example) | |
1971 | #ifdef __WXMSW__ | |
1972 | static wxPoint s_ptLast; | |
1973 | if ( pt == s_ptLast ) | |
1974 | { | |
1975 | return FALSE; | |
1976 | } | |
1977 | ||
1978 | s_ptLast = pt; | |
1979 | #endif // __WXMSW__ | |
1980 | ||
1981 | int currentNew = GetMenuFromPoint(pt); | |
1982 | if ( (currentNew == -1) || (currentNew == m_current) ) | |
1983 | { | |
1984 | return FALSE; | |
1985 | } | |
1986 | ||
1987 | // select the new active item | |
1988 | DoSelectMenu(currentNew); | |
1989 | ||
1990 | // show the menu if we know that we should, even if we hadn't been showing | |
1991 | // it before (this may happen if the previous menu was disabled) | |
1992 | if ( m_shouldShowMenu && !m_menuShown) | |
1993 | { | |
1994 | // open the new menu if the old one we closed had been opened | |
1995 | PopupCurrentMenu(FALSE /* don't select first item - as Windows does */); | |
1996 | } | |
1997 | ||
1998 | return TRUE; | |
1999 | } | |
2000 | ||
2001 | void wxMenuBar::OnKeyDown(wxKeyEvent& event) | |
2002 | { | |
2003 | // ensure that we have a current item - we might not have it if we're | |
2004 | // given the focus with Alt or F10 press (and under GTK+ the menubar | |
2005 | // somehow gets the keyboard events even when it doesn't have focus...) | |
2006 | if ( m_current == -1 ) | |
2007 | { | |
2008 | if ( !HasCapture() ) | |
2009 | { | |
2010 | SelectMenu(0); | |
2011 | } | |
2012 | else // we do have capture | |
2013 | { | |
2014 | // we always maintain a valid current item while we're in modal | |
2015 | // state (i.e. have the capture) | |
2016 | wxFAIL_MSG( _T("how did we manage to lose current item?") ); | |
2017 | ||
2018 | return; | |
2019 | } | |
2020 | } | |
2021 | ||
2022 | int key = event.GetKeyCode(); | |
2023 | ||
2024 | // first let the menu have it | |
2025 | if ( IsShowingMenu() && m_menuShown->ProcessKeyDown(key) ) | |
2026 | { | |
2027 | return; | |
2028 | } | |
2029 | ||
2030 | // cycle through the menu items when left/right arrows are pressed and open | |
2031 | // the menu when up/down one is | |
2032 | switch ( key ) | |
2033 | { | |
2034 | case WXK_MENU: | |
2035 | // Alt must be processed at wxWindow level too | |
2036 | event.Skip(); | |
2037 | // fall through | |
2038 | ||
2039 | case WXK_ESCAPE: | |
2040 | // remove the selection and give the focus away | |
2041 | if ( m_current != -1 ) | |
2042 | { | |
2043 | if ( IsShowingMenu() ) | |
2044 | { | |
2045 | DismissMenu(); | |
2046 | } | |
2047 | ||
2048 | OnDismiss(); | |
2049 | } | |
2050 | break; | |
2051 | ||
2052 | case WXK_LEFT: | |
2053 | case WXK_RIGHT: | |
2054 | { | |
2055 | size_t count = GetCount(); | |
2056 | if ( count == 1 ) | |
2057 | { | |
2058 | // the item won't change anyhow | |
2059 | break; | |
2060 | } | |
2061 | //else: otherwise, it will | |
2062 | ||
2063 | // remember if we were showing a menu - if we did, we should | |
2064 | // show the new menu after changing the item | |
2065 | bool wasMenuOpened = IsShowingMenu(); | |
2066 | if ( wasMenuOpened ) | |
2067 | { | |
2068 | DismissMenu(); | |
2069 | } | |
2070 | ||
2071 | // cast is safe as we tested for -1 above | |
2072 | size_t currentNew = (size_t)m_current; | |
2073 | ||
2074 | if ( key == WXK_LEFT ) | |
2075 | { | |
2076 | if ( currentNew-- == 0 ) | |
2077 | currentNew = count - 1; | |
2078 | } | |
2079 | else // right | |
2080 | { | |
2081 | if ( ++currentNew == count ) | |
2082 | currentNew = 0; | |
2083 | } | |
2084 | ||
2085 | DoSelectMenu(currentNew); | |
2086 | ||
2087 | if ( wasMenuOpened ) | |
2088 | { | |
2089 | PopupCurrentMenu(); | |
2090 | } | |
2091 | } | |
2092 | break; | |
2093 | ||
2094 | case WXK_DOWN: | |
2095 | case WXK_UP: | |
2096 | case WXK_RETURN: | |
2097 | // open the menu | |
2098 | PopupCurrentMenu(); | |
2099 | break; | |
2100 | ||
2101 | default: | |
2102 | // letters open the corresponding menu | |
2103 | { | |
2104 | bool unique; | |
2105 | int idxFound = FindNextItemForAccel(m_current, key, &unique); | |
2106 | ||
2107 | if ( idxFound != -1 ) | |
2108 | { | |
2109 | if ( IsShowingMenu() ) | |
2110 | { | |
2111 | DismissMenu(); | |
2112 | } | |
2113 | ||
2114 | DoSelectMenu((size_t)idxFound); | |
2115 | ||
2116 | // if the item is not unique, just select it but don't | |
2117 | // activate as the user might have wanted to activate | |
2118 | // another item | |
2119 | // | |
2120 | // also, don't try to open a disabled menu | |
2121 | if ( unique && IsEnabledTop((size_t)idxFound) ) | |
2122 | { | |
2123 | // open the menu | |
2124 | PopupCurrentMenu(); | |
2125 | } | |
2126 | ||
2127 | // skip the "event.Skip()" below | |
2128 | break; | |
2129 | } | |
2130 | } | |
2131 | ||
2132 | event.Skip(); | |
2133 | } | |
2134 | } | |
2135 | ||
2136 | // ---------------------------------------------------------------------------- | |
2137 | // wxMenuBar accel handling | |
2138 | // ---------------------------------------------------------------------------- | |
2139 | ||
2140 | int wxMenuBar::FindNextItemForAccel(int idxStart, int key, bool *unique) const | |
2141 | { | |
2142 | if ( !wxIsalnum(key) ) | |
2143 | { | |
2144 | // we only support letters/digits as accels | |
2145 | return -1; | |
2146 | } | |
2147 | ||
2148 | // do we have more than one item with this accel? | |
2149 | if ( unique ) | |
2150 | *unique = TRUE; | |
2151 | ||
2152 | // translate everything to lower case before comparing | |
2153 | wxChar chAccel = wxTolower(key); | |
2154 | ||
2155 | // the index of the item with this accel | |
2156 | int idxFound = -1; | |
2157 | ||
2158 | // loop through all items searching for the item with this | |
2159 | // accel starting at the item after the current one | |
2160 | int count = GetCount(); | |
2161 | int n = idxStart == -1 ? 0 : idxStart + 1; | |
2162 | ||
2163 | if ( n == count ) | |
2164 | { | |
2165 | // wrap | |
2166 | n = 0; | |
2167 | } | |
2168 | ||
2169 | idxStart = n; | |
2170 | for ( ;; ) | |
2171 | { | |
2172 | const wxMenuInfo& info = m_menuInfos[n]; | |
2173 | ||
2174 | int idxAccel = info.GetAccelIndex(); | |
2175 | if ( idxAccel != -1 && | |
2176 | wxTolower(info.GetLabel()[(size_t)idxAccel]) | |
2177 | == chAccel ) | |
2178 | { | |
2179 | // ok, found an item with this accel | |
2180 | if ( idxFound == -1 ) | |
2181 | { | |
2182 | // store it but continue searching as we need to | |
2183 | // know if it's the only item with this accel or if | |
2184 | // there are more | |
2185 | idxFound = n; | |
2186 | } | |
2187 | else // we already had found such item | |
2188 | { | |
2189 | if ( unique ) | |
2190 | *unique = FALSE; | |
2191 | ||
2192 | // no need to continue further, we won't find | |
2193 | // anything we don't already know | |
2194 | break; | |
2195 | } | |
2196 | } | |
2197 | ||
2198 | // we want to iterate over all items wrapping around if | |
2199 | // necessary | |
2200 | if ( ++n == count ) | |
2201 | { | |
2202 | // wrap | |
2203 | n = 0; | |
2204 | } | |
2205 | ||
2206 | if ( n == idxStart ) | |
2207 | { | |
2208 | // we've seen all items | |
2209 | break; | |
2210 | } | |
2211 | } | |
2212 | ||
2213 | return idxFound; | |
2214 | } | |
2215 | ||
2216 | #if wxUSE_ACCEL | |
2217 | ||
2218 | bool wxMenuBar::ProcessAccelEvent(const wxKeyEvent& event) | |
2219 | { | |
2220 | size_t n = 0; | |
2221 | for ( wxMenuList::Node *node = m_menus.GetFirst(); | |
2222 | node; | |
2223 | node = node->GetNext(), n++ ) | |
2224 | { | |
2225 | // accels of the items in the disabled menus shouldn't work | |
2226 | if ( m_menuInfos[n].IsEnabled() ) | |
2227 | { | |
2228 | if ( node->GetData()->ProcessAccelEvent(event) ) | |
2229 | { | |
2230 | // menu processed it | |
2231 | return TRUE; | |
2232 | } | |
2233 | } | |
2234 | } | |
2235 | ||
2236 | // not found | |
2237 | return FALSE; | |
2238 | } | |
2239 | ||
2240 | #endif // wxUSE_ACCEL | |
2241 | ||
2242 | // ---------------------------------------------------------------------------- | |
2243 | // wxMenuBar menus showing | |
2244 | // ---------------------------------------------------------------------------- | |
2245 | ||
2246 | void wxMenuBar::PopupCurrentMenu(bool selectFirst) | |
2247 | { | |
2248 | wxCHECK_RET( m_current != -1, _T("no menu to popup") ); | |
2249 | ||
2250 | // forgot to call DismissMenu()? | |
2251 | wxASSERT_MSG( !m_menuShown, _T("shouldn't show two menus at once!") ); | |
2252 | ||
2253 | // in any case, we should show it - even if we won't | |
2254 | m_shouldShowMenu = TRUE; | |
2255 | ||
2256 | if ( IsEnabledTop(m_current) ) | |
2257 | { | |
2258 | // remember the menu we show | |
2259 | m_menuShown = GetMenu(m_current); | |
2260 | ||
2261 | // we don't show the menu at all if it has no items | |
2262 | if ( !m_menuShown->IsEmpty() ) | |
2263 | { | |
2264 | // position it correctly: note that we must use screen coords and | |
2265 | // that we pass 0 as width to position the menu exactly below the | |
2266 | // item, not to the right of it | |
2267 | wxRect rectItem = GetItemRect(m_current); | |
2268 | ||
2269 | m_menuShown->Popup(ClientToScreen(rectItem.GetPosition()), | |
2270 | wxSize(0, rectItem.GetHeight()), | |
2271 | selectFirst); | |
2272 | } | |
2273 | else | |
2274 | { | |
2275 | // reset it back as no menu is shown | |
2276 | m_menuShown = NULL; | |
2277 | } | |
2278 | } | |
2279 | //else: don't show disabled menu | |
2280 | } | |
2281 | ||
2282 | void wxMenuBar::DismissMenu() | |
2283 | { | |
2284 | wxCHECK_RET( m_menuShown, _T("can't dismiss menu if none is shown") ); | |
2285 | ||
2286 | m_menuShown->Dismiss(); | |
2287 | OnDismissMenu(); | |
2288 | } | |
2289 | ||
2290 | void wxMenuBar::OnDismissMenu(bool dismissMenuBar) | |
2291 | { | |
2292 | m_shouldShowMenu = FALSE; | |
2293 | m_menuShown = NULL; | |
2294 | if ( dismissMenuBar ) | |
2295 | { | |
2296 | OnDismiss(); | |
2297 | } | |
2298 | } | |
2299 | ||
2300 | void wxMenuBar::OnDismiss() | |
2301 | { | |
2302 | if ( GetCapture() ) | |
2303 | { | |
2304 | wxLogTrace(_T("mousecapture"), _T("Releasing mouse from wxMenuBar::OnDismiss")); | |
2305 | GetCapture()->ReleaseMouse(); | |
2306 | } | |
2307 | ||
2308 | if ( m_current != -1 ) | |
2309 | { | |
2310 | size_t current = m_current; | |
2311 | m_current = -1; | |
2312 | ||
2313 | RefreshItem(current); | |
2314 | } | |
2315 | ||
2316 | GiveAwayFocus(); | |
2317 | } | |
2318 | ||
2319 | void wxMenuBar::GiveAwayFocus() | |
2320 | { | |
2321 | GetFrame()->SetFocus(); | |
2322 | } | |
2323 | ||
2324 | // ---------------------------------------------------------------------------- | |
2325 | // popup menu support | |
2326 | // ---------------------------------------------------------------------------- | |
2327 | ||
2328 | wxEventLoop *wxWindow::ms_evtLoopPopup = NULL; | |
2329 | ||
2330 | bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y) | |
2331 | { | |
2332 | wxCHECK_MSG( !ms_evtLoopPopup, FALSE, | |
2333 | _T("can't show more than one popup menu at a time") ); | |
2334 | ||
2335 | #ifdef __WXMSW__ | |
2336 | // we need to change the cursor before showing the menu as, apparently, no | |
2337 | // cursor changes took place while the mouse is captured | |
2338 | wxCursor cursorOld = GetCursor(); | |
2339 | SetCursor(wxCURSOR_ARROW); | |
2340 | #endif // __WXMSW__ | |
2341 | ||
2342 | #if 0 | |
2343 | // flash any delayed log messages before showing the menu, otherwise it | |
2344 | // could be dismissed (because it would lose focus) immediately after being | |
2345 | // shown | |
2346 | wxLog::FlushActive(); | |
2347 | ||
2348 | // some controls update themselves from OnIdle() call - let them do it | |
2349 | wxIdleEvent event; | |
2350 | wxTheApp->ProcessEvent(event); | |
2351 | ||
2352 | // if the window hadn't been refreshed yet, the menu can adversely affect | |
2353 | // its next OnPaint() handler execution - i.e. scrolled window refresh | |
2354 | // logic breaks then as it scrolls part of the menu which hadn't been there | |
2355 | // when the update event was generated into view | |
2356 | Update(); | |
2357 | #endif // 0 | |
2358 | ||
2359 | menu->SetInvokingWindow(this); | |
2360 | ||
2361 | // wxLogDebug( "Name of invoking window %s", menu->GetInvokingWindow()->GetName().c_str() ); | |
2362 | ||
2363 | menu->Popup(ClientToScreen(wxPoint(x, y)), wxSize(0, 0)); | |
2364 | ||
2365 | // this is not very useful if the menu was popped up because of the mouse | |
2366 | // click but I think it is nice to do when it appears because of a key | |
2367 | // press (i.e. Windows menu key) | |
2368 | // | |
2369 | // Windows itself doesn't do it, but IMHO this is nice | |
2370 | WarpPointer(x, y); | |
2371 | ||
2372 | // we have to redirect all keyboard input to the menu temporarily | |
2373 | PushEventHandler(new wxMenuKbdRedirector(menu)); | |
2374 | ||
2375 | // enter the local modal loop | |
2376 | ms_evtLoopPopup = new wxEventLoop; | |
2377 | ms_evtLoopPopup->Run(); | |
2378 | ||
2379 | delete ms_evtLoopPopup; | |
2380 | ms_evtLoopPopup = NULL; | |
2381 | ||
2382 | // remove the handler | |
2383 | PopEventHandler(TRUE /* delete it */); | |
2384 | ||
2385 | menu->SetInvokingWindow(NULL); | |
2386 | ||
2387 | #ifdef __WXMSW__ | |
2388 | SetCursor(cursorOld); | |
2389 | #endif // __WXMSW__ | |
2390 | ||
2391 | return TRUE; | |
2392 | } | |
2393 | ||
2394 | void wxWindow::DismissPopupMenu() | |
2395 | { | |
2396 | wxCHECK_RET( ms_evtLoopPopup, _T("no popup menu shown") ); | |
2397 | ||
2398 | ms_evtLoopPopup->Exit(); | |
2399 | } | |
2400 | ||
2401 | #endif // wxUSE_MENUS | |
2402 |