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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: menuitem.cpp | |
3 | // Purpose: wxMenuItem implementation | |
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 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
17 | #pragma implementation "menuitem.h" | |
18 | #endif | |
19 | ||
20 | // ---------------------------------------------------------------------------- | |
21 | // headers | |
22 | // ---------------------------------------------------------------------------- | |
23 | ||
24 | #include "wx/defs.h" | |
25 | ||
26 | #include "wx/menu.h" | |
27 | #include "wx/menuitem.h" | |
28 | #include "wx/utils.h" | |
29 | #include "wx/frame.h" | |
30 | ||
31 | #ifdef __VMS__ | |
32 | #pragma message disable nosimpint | |
33 | #endif | |
34 | #include <Xm/Label.h> | |
35 | #include <Xm/LabelG.h> | |
36 | #include <Xm/CascadeBG.h> | |
37 | #include <Xm/CascadeB.h> | |
38 | #include <Xm/SeparatoG.h> | |
39 | #include <Xm/PushBG.h> | |
40 | #include <Xm/ToggleB.h> | |
41 | #include <Xm/ToggleBG.h> | |
42 | #include <Xm/RowColumn.h> | |
43 | #ifdef __VMS__ | |
44 | #pragma message enable nosimpint | |
45 | #endif | |
46 | ||
47 | #include "wx/motif/private.h" | |
48 | ||
49 | // ---------------------------------------------------------------------------- | |
50 | // functions prototypes | |
51 | // ---------------------------------------------------------------------------- | |
52 | ||
53 | static void wxMenuItemCallback(Widget w, XtPointer clientData, XtPointer ptr); | |
54 | static void wxMenuItemArmCallback(Widget w, XtPointer clientData, XtPointer ptr); | |
55 | static void wxMenuItemDisarmCallback(Widget w, XtPointer clientData, XtPointer ptr); | |
56 | ||
57 | // ============================================================================ | |
58 | // implementation | |
59 | // ============================================================================ | |
60 | ||
61 | // ---------------------------------------------------------------------------- | |
62 | // dynamic classes implementation | |
63 | // ---------------------------------------------------------------------------- | |
64 | ||
65 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject) | |
66 | ||
67 | // ---------------------------------------------------------------------------- | |
68 | // wxMenuItem | |
69 | // ---------------------------------------------------------------------------- | |
70 | ||
71 | // ctor & dtor | |
72 | // ----------- | |
73 | ||
74 | wxMenuItem::wxMenuItem(wxMenu *pParentMenu, | |
75 | int id, | |
76 | const wxString& strName, | |
77 | const wxString& strHelp, | |
78 | wxItemKind kind, | |
79 | wxMenu *pSubMenu) | |
80 | : wxMenuItemBase(pParentMenu, id, strName, strHelp, kind, pSubMenu) | |
81 | { | |
82 | // Motif-specific | |
83 | m_menuBar = NULL; | |
84 | m_buttonWidget = (WXWidget) NULL; | |
85 | m_topMenu = NULL; | |
86 | } | |
87 | ||
88 | wxMenuItem::~wxMenuItem() | |
89 | { | |
90 | } | |
91 | ||
92 | // misc | |
93 | // ---- | |
94 | ||
95 | // delete the sub menu | |
96 | void wxMenuItem::DeleteSubMenu() | |
97 | { | |
98 | wxASSERT( m_subMenu != NULL ); | |
99 | ||
100 | delete m_subMenu; | |
101 | m_subMenu = NULL; | |
102 | } | |
103 | ||
104 | // change item state | |
105 | // ----------------- | |
106 | ||
107 | void wxMenuItem::Enable(bool bDoEnable) | |
108 | { | |
109 | if ( m_isEnabled != bDoEnable ) | |
110 | { | |
111 | if ( !IsSubMenu() ) | |
112 | { | |
113 | // normal menu item | |
114 | if (m_buttonWidget) | |
115 | XtSetSensitive( (Widget) m_buttonWidget, (Boolean) bDoEnable); | |
116 | } | |
117 | else // submenu | |
118 | { | |
119 | // Maybe we should apply this to all items in the submenu? | |
120 | // Or perhaps it works anyway. | |
121 | if (m_buttonWidget) | |
122 | XtSetSensitive( (Widget) m_buttonWidget, (Boolean) bDoEnable); | |
123 | } | |
124 | ||
125 | wxMenuItemBase::Enable(bDoEnable); | |
126 | } | |
127 | } | |
128 | ||
129 | void wxMenuItem::Check(bool bDoCheck) | |
130 | { | |
131 | wxCHECK_RET( IsCheckable(), "only checkable items may be checked" ); | |
132 | ||
133 | if ( m_isChecked != bDoCheck ) | |
134 | { | |
135 | if ( m_buttonWidget ) | |
136 | { | |
137 | wxASSERT_MSG( XtIsSubclass((Widget)m_buttonWidget, | |
138 | xmToggleButtonGadgetClass), | |
139 | wxT("checkable menu item must be a toggle button") ); | |
140 | ||
141 | XtVaSetValues((Widget)m_buttonWidget, | |
142 | XmNset, (Boolean)bDoCheck, | |
143 | NULL); | |
144 | } | |
145 | ||
146 | wxMenuItemBase::Check(bDoCheck); | |
147 | } | |
148 | } | |
149 | ||
150 | /* static */ | |
151 | wxString wxMenuItemBase::GetLabelFromText(const wxString& text) | |
152 | { | |
153 | return wxStripMenuCodes(text); | |
154 | } | |
155 | ||
156 | // ---------------------------------------------------------------------------- | |
157 | // wxMenuItemBase | |
158 | // ---------------------------------------------------------------------------- | |
159 | ||
160 | wxMenuItem *wxMenuItemBase::New(wxMenu *parentMenu, | |
161 | int id, | |
162 | const wxString& name, | |
163 | const wxString& help, | |
164 | wxItemKind kind, | |
165 | wxMenu *subMenu) | |
166 | { | |
167 | return new wxMenuItem(parentMenu, id, name, help, kind, subMenu); | |
168 | } | |
169 | ||
170 | // ---------------------------------------------------------------------------- | |
171 | // Motif-specific | |
172 | // ---------------------------------------------------------------------------- | |
173 | ||
174 | void wxMenuItem::CreateItem (WXWidget menu, wxMenuBar * menuBar, wxMenu * topMenu) | |
175 | { | |
176 | m_menuBar = menuBar; | |
177 | m_topMenu = topMenu; | |
178 | ||
179 | if (GetId() == -2) | |
180 | { | |
181 | // Id=-2 identifies a Title item. | |
182 | m_buttonWidget = (WXWidget) XtVaCreateManagedWidget | |
183 | (wxStripMenuCodes(m_text), | |
184 | xmLabelGadgetClass, (Widget) menu, NULL); | |
185 | } | |
186 | else if ((!m_text.IsNull() && m_text != "") && (!m_subMenu)) | |
187 | { | |
188 | wxString strName = wxStripMenuCodes(m_text); | |
189 | if (IsCheckable()) | |
190 | { | |
191 | m_buttonWidget = (WXWidget) XtVaCreateManagedWidget (strName, | |
192 | xmToggleButtonGadgetClass, (Widget) menu, | |
193 | NULL); | |
194 | XtVaSetValues ((Widget) m_buttonWidget, XmNset, (Boolean) IsChecked(), NULL); | |
195 | } | |
196 | else | |
197 | m_buttonWidget = (WXWidget) XtVaCreateManagedWidget (strName, | |
198 | xmPushButtonGadgetClass, (Widget) menu, | |
199 | NULL); | |
200 | char mnem = wxFindMnemonic (m_text); | |
201 | if (mnem != 0) | |
202 | XtVaSetValues ((Widget) m_buttonWidget, XmNmnemonic, mnem, NULL); | |
203 | ||
204 | //// TODO: proper accelerator treatment. What does wxFindAccelerator | |
205 | //// look for? | |
206 | strName = m_text; | |
207 | char *accel = wxFindAccelerator (strName); | |
208 | if (accel) | |
209 | XtVaSetValues ((Widget) m_buttonWidget, XmNaccelerator, accel, NULL); | |
210 | ||
211 | // TODO: What does this do? | |
212 | XmString accel_str = wxFindAcceleratorText (strName); | |
213 | if (accel_str) | |
214 | { | |
215 | XtVaSetValues ((Widget) m_buttonWidget, XmNacceleratorText, accel_str, NULL); | |
216 | XmStringFree (accel_str); | |
217 | } | |
218 | ||
219 | if (IsCheckable()) | |
220 | XtAddCallback ((Widget) m_buttonWidget, | |
221 | XmNvalueChangedCallback, | |
222 | (XtCallbackProc) wxMenuItemCallback, | |
223 | (XtPointer) this); | |
224 | else | |
225 | XtAddCallback ((Widget) m_buttonWidget, | |
226 | XmNactivateCallback, | |
227 | (XtCallbackProc) wxMenuItemCallback, | |
228 | (XtPointer) this); | |
229 | XtAddCallback ((Widget) m_buttonWidget, | |
230 | XmNarmCallback, | |
231 | (XtCallbackProc) wxMenuItemArmCallback, | |
232 | (XtPointer) this); | |
233 | XtAddCallback ((Widget) m_buttonWidget, | |
234 | XmNdisarmCallback, | |
235 | (XtCallbackProc) wxMenuItemDisarmCallback, | |
236 | (XtPointer) this); | |
237 | } | |
238 | else if (GetId() == -1) | |
239 | { | |
240 | m_buttonWidget = (WXWidget) XtVaCreateManagedWidget ("separator", | |
241 | xmSeparatorGadgetClass, (Widget) menu, NULL); | |
242 | } | |
243 | else if (m_subMenu) | |
244 | { | |
245 | m_buttonWidget = m_subMenu->CreateMenu (menuBar, menu, topMenu, m_text, TRUE); | |
246 | m_subMenu->SetButtonWidget(m_buttonWidget); | |
247 | XtAddCallback ((Widget) m_buttonWidget, | |
248 | XmNcascadingCallback, | |
249 | (XtCallbackProc) wxMenuItemArmCallback, | |
250 | (XtPointer) this); | |
251 | } | |
252 | if (m_buttonWidget) | |
253 | XtSetSensitive ((Widget) m_buttonWidget, (Boolean) IsEnabled()); | |
254 | } | |
255 | ||
256 | void wxMenuItem::DestroyItem(bool full) | |
257 | { | |
258 | if (GetId() == -2) | |
259 | { | |
260 | ; // Nothing | |
261 | ||
262 | } | |
263 | else if ((!m_text.IsNull() && (m_text != "")) && !m_subMenu) | |
264 | { | |
265 | if (m_buttonWidget) | |
266 | { | |
267 | if (IsCheckable()) | |
268 | XtRemoveCallback ((Widget) m_buttonWidget, XmNvalueChangedCallback, | |
269 | wxMenuItemCallback, (XtPointer) this); | |
270 | else | |
271 | XtRemoveCallback ((Widget) m_buttonWidget, XmNactivateCallback, | |
272 | wxMenuItemCallback, (XtPointer) this); | |
273 | XtRemoveCallback ((Widget) m_buttonWidget, XmNarmCallback, | |
274 | wxMenuItemArmCallback, (XtPointer) this); | |
275 | XtRemoveCallback ((Widget) m_buttonWidget, XmNdisarmCallback, | |
276 | wxMenuItemDisarmCallback, (XtPointer) this); | |
277 | } | |
278 | } | |
279 | else if (GetId() == -1) | |
280 | { | |
281 | ; // Nothing | |
282 | ||
283 | } | |
284 | else if (GetSubMenu()) | |
285 | { | |
286 | if (m_buttonWidget) | |
287 | { | |
288 | XtRemoveCallback ((Widget) m_buttonWidget, XmNcascadingCallback, | |
289 | wxMenuItemArmCallback, (XtPointer) this); | |
290 | } | |
291 | m_subMenu->DestroyMenu(full); | |
292 | if (full) | |
293 | m_buttonWidget = NULL; | |
294 | } | |
295 | ||
296 | if (m_buttonWidget && full) | |
297 | { | |
298 | XtDestroyWidget ((Widget) m_buttonWidget); | |
299 | m_buttonWidget = (WXWidget) 0; | |
300 | } | |
301 | } | |
302 | ||
303 | void wxMenuItem::SetText(const wxString& label) | |
304 | { | |
305 | char mnem = wxFindMnemonic (label); | |
306 | wxString label2 = wxStripMenuCodes(label); | |
307 | ||
308 | m_text = label; | |
309 | ||
310 | if (m_buttonWidget) | |
311 | { | |
312 | wxXmString label_str(label2); | |
313 | XtVaSetValues ((Widget) m_buttonWidget, | |
314 | XmNlabelString, label_str(), | |
315 | NULL); | |
316 | if (mnem != 0) | |
317 | XtVaSetValues ((Widget) m_buttonWidget, XmNmnemonic, mnem, NULL); | |
318 | char *accel = wxFindAccelerator (label2); | |
319 | if (accel) | |
320 | XtVaSetValues ((Widget) m_buttonWidget, XmNaccelerator, accel, NULL); | |
321 | ||
322 | XmString accel_str = wxFindAcceleratorText (label2); | |
323 | if (accel_str) | |
324 | { | |
325 | XtVaSetValues ((Widget) m_buttonWidget, XmNacceleratorText, accel_str, NULL); | |
326 | XmStringFree (accel_str); | |
327 | } | |
328 | } | |
329 | } | |
330 | ||
331 | // ---------------------------------------------------------------------------- | |
332 | // Motif callbacks | |
333 | // ---------------------------------------------------------------------------- | |
334 | ||
335 | void wxMenuItemCallback (Widget WXUNUSED(w), XtPointer clientData, | |
336 | XtPointer WXUNUSED(ptr)) | |
337 | { | |
338 | wxMenuItem *item = (wxMenuItem *) clientData; | |
339 | if (item) | |
340 | { | |
341 | wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, item->GetId()); | |
342 | event.SetInt( item->GetId() ); | |
343 | ||
344 | if (item->IsCheckable()) | |
345 | { | |
346 | Boolean isChecked = FALSE; | |
347 | XtVaGetValues ((Widget) item->GetButtonWidget(), | |
348 | XmNset, & isChecked, | |
349 | NULL); | |
350 | ||
351 | // only set the flag, don't actually check anything | |
352 | item->wxMenuItemBase::Check(isChecked); | |
353 | event.SetInt(isChecked); | |
354 | } | |
355 | ||
356 | if (item->GetMenuBar() && item->GetMenuBar()->GetMenuBarFrame()) | |
357 | { | |
358 | event.SetEventObject(item->GetMenuBar()->GetMenuBarFrame()); | |
359 | ||
360 | item->GetMenuBar()->GetMenuBarFrame() | |
361 | ->GetEventHandler()->ProcessEvent(event); | |
362 | } | |
363 | // this is the child of a popup menu | |
364 | else if (item->GetTopMenu()) | |
365 | { | |
366 | event.SetEventObject(item->GetTopMenu()); | |
367 | ||
368 | item->GetTopMenu()->ProcessCommand (event); | |
369 | ||
370 | // Since PopupMenu under Motif still grab right mouse | |
371 | // button events after it was closed, we need to delete | |
372 | // the associated widgets to allow next PopUpMenu to | |
373 | // appear; this needs to be done there because doing it in | |
374 | // a WorkProc as before may cause crashes if a menu item causes | |
375 | // the parent window of the menu to be destroyed | |
376 | item->GetTopMenu()->DestroyWidgetAndDetach(); | |
377 | } | |
378 | } | |
379 | } | |
380 | ||
381 | void wxMenuItemArmCallback (Widget WXUNUSED(w), XtPointer clientData, | |
382 | XtPointer WXUNUSED(ptr)) | |
383 | { | |
384 | wxMenuItem *item = (wxMenuItem *) clientData; | |
385 | if (item) | |
386 | { | |
387 | if (item->GetMenuBar() && item->GetMenuBar()->GetMenuBarFrame()) | |
388 | { | |
389 | wxMenuEvent menuEvent(wxEVT_MENU_HIGHLIGHT, item->GetId()); | |
390 | menuEvent.SetEventObject(item->GetMenuBar()->GetMenuBarFrame()); | |
391 | ||
392 | item->GetMenuBar()->GetMenuBarFrame() | |
393 | ->GetEventHandler()->ProcessEvent(menuEvent); | |
394 | } | |
395 | } | |
396 | } | |
397 | ||
398 | void | |
399 | wxMenuItemDisarmCallback (Widget WXUNUSED(w), XtPointer clientData, | |
400 | XtPointer WXUNUSED(ptr)) | |
401 | { | |
402 | wxMenuItem *item = (wxMenuItem *) clientData; | |
403 | if (item) | |
404 | { | |
405 | if (item->GetMenuBar() && item->GetMenuBar()->GetMenuBarFrame()) | |
406 | { | |
407 | // TODO: not sure this is correct, since -1 means something | |
408 | // special to event system | |
409 | wxMenuEvent menuEvent(wxEVT_MENU_HIGHLIGHT, -1); | |
410 | menuEvent.SetEventObject(item->GetMenuBar()->GetMenuBarFrame()); | |
411 | ||
412 | item->GetMenuBar()->GetMenuBarFrame() | |
413 | ->GetEventHandler()->ProcessEvent(menuEvent); | |
414 | } | |
415 | } | |
416 | } | |
417 |