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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: menuitem.cpp | |
3 | // Purpose: wxMenuItem implementation | |
4 | // Author: David Webster | |
5 | // Modified by: | |
6 | // Created: 10/10/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) David Webster | |
9 | // Licence: wxWindows licence | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // headers & declarations | |
14 | // ============================================================================ | |
15 | ||
16 | #ifdef __GNUG__ | |
17 | #pragma implementation "menuitem.h" | |
18 | #endif | |
19 | ||
20 | // For compilers that support precompilation, includes "wx.h". | |
21 | #include "wx/wxprec.h" | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include "wx/font.h" | |
25 | #include "wx/bitmap.h" | |
26 | #include "wx/settings.h" | |
27 | #include "wx/font.h" | |
28 | #include "wx/window.h" | |
29 | #include "wx/accel.h" | |
30 | #include "wx/menu.h" | |
31 | #include "wx/string.h" | |
32 | #endif | |
33 | ||
34 | #include "wx/menuitem.h" | |
35 | #include "wx/log.h" | |
36 | ||
37 | #if wxUSE_ACCEL | |
38 | #include "wx/accel.h" | |
39 | #endif // wxUSE_ACCEL | |
40 | ||
41 | #include "wx/os2/private.h" | |
42 | ||
43 | // --------------------------------------------------------------------------- | |
44 | // macro | |
45 | // --------------------------------------------------------------------------- | |
46 | ||
47 | // hide the ugly cast | |
48 | #define GetHMenuOf(menu) ((HMENU)menu->GetHMenu()) | |
49 | ||
50 | // conditional compilation | |
51 | #if wxUSE_OWNER_DRAWN | |
52 | #define OWNER_DRAWN_ONLY( code ) if ( IsOwnerDrawn() ) code | |
53 | #else // !wxUSE_OWNER_DRAWN | |
54 | #define OWNER_DRAWN_ONLY( code ) | |
55 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN | |
56 | ||
57 | // ---------------------------------------------------------------------------- | |
58 | // static function for translating menu labels | |
59 | // ---------------------------------------------------------------------------- | |
60 | ||
61 | static wxString TextToLabel(const wxString& rTitle) | |
62 | { | |
63 | wxString Title; | |
64 | const wxChar *pc; | |
65 | for (pc = rTitle; *pc != wxT('\0'); pc++ ) | |
66 | { | |
67 | if (*pc == wxT('&') ) | |
68 | { | |
69 | if (*(pc+1) == wxT('&')) | |
70 | { | |
71 | pc++; | |
72 | Title << wxT('&'); | |
73 | } | |
74 | else | |
75 | Title << wxT('~'); | |
76 | } | |
77 | // else if (*pc == wxT('/')) | |
78 | // { | |
79 | // Title << wxT('\\'); | |
80 | // } | |
81 | else | |
82 | { | |
83 | if ( *pc == wxT('~') ) | |
84 | { | |
85 | // tildes must be doubled to prevent them from being | |
86 | // interpreted as accelerator character prefix by PM ??? | |
87 | Title << *pc; | |
88 | } | |
89 | Title << *pc; | |
90 | } | |
91 | } | |
92 | return Title; | |
93 | } | |
94 | ||
95 | // ============================================================================ | |
96 | // implementation | |
97 | // ============================================================================ | |
98 | ||
99 | // ---------------------------------------------------------------------------- | |
100 | // dynamic classes implementation | |
101 | // ---------------------------------------------------------------------------- | |
102 | ||
103 | #if wxUSE_OWNER_DRAWN | |
104 | IMPLEMENT_DYNAMIC_CLASS2(wxMenuItem, wxMenuItemBase, wxOwnerDrawn) | |
105 | #else //!USE_OWNER_DRAWN | |
106 | IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxMenuItemBase) | |
107 | #endif //USE_OWNER_DRAWN | |
108 | ||
109 | // ---------------------------------------------------------------------------- | |
110 | // wxMenuItem | |
111 | // ---------------------------------------------------------------------------- | |
112 | ||
113 | // ctor & dtor | |
114 | // ----------- | |
115 | ||
116 | wxMenuItem::wxMenuItem( | |
117 | wxMenu* pParentMenu | |
118 | , int nId | |
119 | , const wxString& rText | |
120 | , const wxString& rStrHelp | |
121 | , bool bCheckable | |
122 | , wxMenu* pSubMenu | |
123 | ) | |
124 | #if wxUSE_OWNER_DRAWN | |
125 | : wxOwnerDrawn( TextToLabel(rText) | |
126 | ,bCheckable | |
127 | ) | |
128 | #endif // owner drawn | |
129 | { | |
130 | wxASSERT_MSG(pParentMenu != NULL, wxT("a menu item should have a parent")); | |
131 | ||
132 | #if wxUSE_OWNER_DRAWN | |
133 | ||
134 | // | |
135 | // Set default menu colors | |
136 | // | |
137 | #define SYS_COLOR(c) (wxSystemSettings::GetSystemColour(wxSYS_COLOUR_##c)) | |
138 | ||
139 | SetTextColour(SYS_COLOR(MENUTEXT)); | |
140 | SetBackgroundColour(SYS_COLOR(MENU)); | |
141 | ||
142 | // | |
143 | // We don't want normal items be owner-drawn | |
144 | // | |
145 | ResetOwnerDrawn(); | |
146 | ||
147 | #undef SYS_COLOR | |
148 | #endif // wxUSE_OWNER_DRAWN | |
149 | ||
150 | m_parentMenu = pParentMenu; | |
151 | m_subMenu = pSubMenu; | |
152 | m_isEnabled = TRUE; | |
153 | m_isChecked = FALSE; | |
154 | m_id = nId; | |
155 | m_text = TextToLabel(rText); | |
156 | m_isCheckable = bCheckable; | |
157 | m_help = rStrHelp; | |
158 | memset(&m_vMenuData, '\0', sizeof(m_vMenuData)); | |
159 | m_vMenuData.id= nId; | |
160 | } // end of wxMenuItem::wxMenuItem | |
161 | ||
162 | wxMenuItem::~wxMenuItem() | |
163 | { | |
164 | } // end of wxMenuItem::~wxMenuItem | |
165 | ||
166 | // | |
167 | // Misc | |
168 | // ---- | |
169 | ||
170 | // | |
171 | // Return the id for calling Win32 API functions | |
172 | // | |
173 | int wxMenuItem::GetRealId() const | |
174 | { | |
175 | return m_subMenu ? (int)m_subMenu->GetHMenu() : GetId(); | |
176 | } // end of wxMenuItem::GetRealId | |
177 | ||
178 | // | |
179 | // Get item state | |
180 | // -------------- | |
181 | bool wxMenuItem::IsChecked() const | |
182 | { | |
183 | USHORT uFlag = SHORT1FROMMR(::WinSendMsg( GetHMenuOf(m_parentMenu) | |
184 | ,MM_QUERYITEMATTR | |
185 | ,MPFROM2SHORT(GetId(), TRUE) | |
186 | ,MPFROMSHORT(MIA_CHECKED) | |
187 | )); | |
188 | ||
189 | return (uFlag & MIA_CHECKED); | |
190 | } // end of wxMenuItem::IsChecked | |
191 | ||
192 | wxString wxMenuItemBase::GetLabelFromText( | |
193 | const wxString& rText | |
194 | ) | |
195 | { | |
196 | wxString label; | |
197 | for ( const wxChar *pc = rText.c_str(); *pc; pc++ ) | |
198 | { | |
199 | if ( *pc == wxT('~') || *pc == wxT('&') ) | |
200 | { | |
201 | // '~' is the escape character for GTK+ and '&' is the one for | |
202 | // wxWindows - skip both of them | |
203 | continue; | |
204 | } | |
205 | ||
206 | label += *pc; | |
207 | } | |
208 | return label; | |
209 | } | |
210 | ||
211 | // change item state | |
212 | // ----------------- | |
213 | ||
214 | void wxMenuItem::Enable( | |
215 | bool bEnable | |
216 | ) | |
217 | { | |
218 | bool bOk; | |
219 | ||
220 | if (m_isEnabled == bEnable) | |
221 | return; | |
222 | if (bEnable) | |
223 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) | |
224 | ,MM_SETITEMATTR | |
225 | ,MPFROM2SHORT(GetRealId(), TRUE) | |
226 | ,MPFROM2SHORT(MIA_DISABLED, FALSE) | |
227 | ); | |
228 | else | |
229 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) | |
230 | ,MM_SETITEMATTR | |
231 | ,MPFROM2SHORT(GetRealId(), TRUE) | |
232 | ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED) | |
233 | ); | |
234 | if (!bOk) | |
235 | { | |
236 | wxLogLastError("EnableMenuItem"); | |
237 | } | |
238 | wxMenuItemBase::Enable(bEnable); | |
239 | } // end of wxMenuItem::Enable | |
240 | ||
241 | void wxMenuItem::Check( | |
242 | bool bCheck | |
243 | ) | |
244 | { | |
245 | bool bOk; | |
246 | ||
247 | wxCHECK_RET( m_isCheckable, wxT("only checkable items may be checked") ); | |
248 | if (m_isChecked == bCheck) | |
249 | return; | |
250 | if (bCheck) | |
251 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) | |
252 | ,MM_SETITEMATTR | |
253 | ,MPFROM2SHORT(GetRealId(), TRUE) | |
254 | ,MPFROM2SHORT(MIA_CHECKED, MIA_CHECKED) | |
255 | ); | |
256 | else | |
257 | bOk = (bool)::WinSendMsg( GetHMenuOf(m_parentMenu) | |
258 | ,MM_SETITEMATTR | |
259 | ,MPFROM2SHORT(GetRealId(), TRUE) | |
260 | ,MPFROM2SHORT(MIA_CHECKED, FALSE) | |
261 | ); | |
262 | if (!bOk) | |
263 | { | |
264 | wxLogLastError("CheckMenuItem"); | |
265 | } | |
266 | wxMenuItemBase::Check(bCheck); | |
267 | } // end of wxMenuItem::Check | |
268 | ||
269 | void wxMenuItem::SetText( | |
270 | const wxString& rText | |
271 | ) | |
272 | { | |
273 | // | |
274 | // Don't do anything if label didn't change | |
275 | // | |
276 | ||
277 | wxString Text = TextToLabel(rText); | |
278 | if (m_text == Text) | |
279 | return; | |
280 | ||
281 | wxMenuItemBase::SetText(Text); | |
282 | OWNER_DRAWN_ONLY(wxOwnerDrawn::SetName(Text)); | |
283 | ||
284 | HWND hMenu = GetHMenuOf(m_parentMenu); | |
285 | ||
286 | wxCHECK_RET(hMenu, wxT("menuitem without menu")); | |
287 | ||
288 | #if wxUSE_ACCEL | |
289 | m_parentMenu->UpdateAccel(this); | |
290 | #endif // wxUSE_ACCEL | |
291 | ||
292 | USHORT uId = GetRealId(); | |
293 | MENUITEM vItem; | |
294 | USHORT uFlagsOld; | |
295 | ||
296 | if (!::WinSendMsg( hMenu | |
297 | ,MM_QUERYITEM | |
298 | ,MPFROM2SHORT(uId, TRUE) | |
299 | ,(MPARAM)&vItem | |
300 | )) | |
301 | { | |
302 | wxLogLastError("GetMenuState"); | |
303 | } | |
304 | else | |
305 | { | |
306 | uFlagsOld = vItem.afStyle; | |
307 | if (IsSubMenu()) | |
308 | { | |
309 | uFlagsOld |= MIS_SUBMENU; | |
310 | } | |
311 | ||
312 | BYTE* pData; | |
313 | ||
314 | #if wxUSE_OWNER_DRAWN | |
315 | if (IsOwnerDrawn()) | |
316 | { | |
317 | uFlagsOld |= MIS_OWNERDRAW; | |
318 | pData = (BYTE*)this; | |
319 | } | |
320 | else | |
321 | #endif //owner drawn | |
322 | { | |
323 | uFlagsOld |= MIS_TEXT; | |
324 | pData = (BYTE*)Text.c_str(); | |
325 | } | |
326 | ||
327 | // | |
328 | // Set the style | |
329 | // | |
330 | if (!::WinSendMsg( hMenu | |
331 | ,MM_SETITEM | |
332 | ,MPFROM2SHORT(uId, TRUE) | |
333 | ,(MPARAM)&vItem | |
334 | )) | |
335 | { | |
336 | wxLogLastError(wxT("ModifyMenu")); | |
337 | } | |
338 | ||
339 | // | |
340 | // Set the text | |
341 | // | |
342 | if (::WinSendMsg( hMenu | |
343 | ,MM_SETITEMTEXT | |
344 | ,MPFROMSHORT(uId) | |
345 | ,(MPARAM)pData | |
346 | )) | |
347 | { | |
348 | wxLogLastError(wxT("ModifyMenu")); | |
349 | } | |
350 | } | |
351 | } // end of wxMenuItem::SetText | |
352 | ||
353 | void wxMenuItem::SetCheckable( | |
354 | bool bCheckable | |
355 | ) | |
356 | { | |
357 | wxMenuItemBase::SetCheckable(bCheckable); | |
358 | OWNER_DRAWN_ONLY(wxOwnerDrawn::SetCheckable(bCheckable)); | |
359 | } // end of wxMenuItem::SetCheckable | |
360 | ||
361 | // ---------------------------------------------------------------------------- | |
362 | // wxMenuItemBase | |
363 | // ---------------------------------------------------------------------------- | |
364 | ||
365 | wxMenuItem* wxMenuItemBase::New( | |
366 | wxMenu* pParentMenu | |
367 | , int nId | |
368 | , const wxString& rName | |
369 | , const wxString& rHelp | |
370 | , bool bIsCheckable | |
371 | , wxMenu* pSubMenu | |
372 | ) | |
373 | { | |
374 | return new wxMenuItem( pParentMenu | |
375 | ,nId | |
376 | ,rName | |
377 | ,rHelp | |
378 | ,bIsCheckable | |
379 | ,pSubMenu | |
380 | ); | |
381 | } // end of wxMenuItemBase::New | |
382 |