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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: msw/gdiimage.cpp | |
3 | // Purpose: wxGDIImage implementation | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 20.11.99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> | |
9 | // Licence: wxWindows license | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #ifdef __GNUG__ | |
21 | #pragma implementation "gdiimage.h" | |
22 | #endif | |
23 | ||
24 | // For compilers that support precompilation, includes "wx.h". | |
25 | #include "wx/wxprec.h" | |
26 | ||
27 | #ifdef __BORLANDC__ | |
28 | #pragma hdrstop | |
29 | #endif | |
30 | ||
31 | #ifndef WX_PRECOMP | |
32 | #include "wx/string.h" | |
f94dfb38 | 33 | #include "wx/log.h" |
0d0512bd VZ |
34 | #endif // WX_PRECOMP |
35 | ||
e42a6c18 VZ |
36 | #include "wx/msw/private.h" |
37 | ||
0d0512bd VZ |
38 | #include "wx/app.h" |
39 | ||
40 | #include "wx/msw/dib.h" | |
c25a510b | 41 | #include "wx/msw/bitmap.h" |
0d0512bd | 42 | #include "wx/msw/gdiimage.h" |
f66f0fd7 GRG |
43 | #include "wx/bitmap.h" |
44 | ||
45 | #if wxUSE_XPM_IN_MSW | |
46 | # include "wx/xpmhand.h" | |
47 | #endif // wxUSE_XPM_IN_MSW | |
0d0512bd | 48 | |
8f177c8e | 49 | #ifdef __WIN16__ |
f66f0fd7 | 50 | # include "wx/msw/curico.h" |
8f177c8e VZ |
51 | #endif // __WIN16__ |
52 | ||
0d0512bd VZ |
53 | // ---------------------------------------------------------------------------- |
54 | // private classes | |
55 | // ---------------------------------------------------------------------------- | |
56 | ||
57 | // all image handlers are declared/defined in this file because the outside | |
58 | // world doesn't have to know about them (but only about wxBITMAP_TYPE_XXX ids) | |
59 | ||
60 | class WXDLLEXPORT wxBMPFileHandler : public wxBitmapHandler | |
61 | { | |
62 | public: | |
63 | wxBMPFileHandler() : wxBitmapHandler(_T("Windows bitmap file"), _T("bmp"), | |
64 | wxBITMAP_TYPE_BMP) | |
65 | { | |
66 | } | |
67 | ||
68 | virtual bool LoadFile(wxBitmap *bitmap, | |
69 | const wxString& name, long flags, | |
70 | int desiredWidth, int desiredHeight); | |
71 | virtual bool SaveFile(wxBitmap *bitmap, | |
72 | const wxString& name, int type, | |
73 | const wxPalette *palette = NULL); | |
74 | ||
75 | private: | |
76 | DECLARE_DYNAMIC_CLASS(wxBMPFileHandler) | |
77 | }; | |
78 | ||
79 | class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler | |
80 | { | |
81 | public: | |
82 | wxBMPResourceHandler() : wxBitmapHandler(_T("Windows bitmap resource"), | |
83 | wxEmptyString, | |
84 | wxBITMAP_TYPE_BMP_RESOURCE) | |
85 | { | |
86 | } | |
87 | ||
88 | virtual bool LoadFile(wxBitmap *bitmap, | |
89 | const wxString& name, long flags, | |
90 | int desiredWidth, int desiredHeight); | |
91 | ||
92 | private: | |
93 | DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler) | |
94 | }; | |
95 | ||
96 | class WXDLLEXPORT wxIconHandler : public wxGDIImageHandler | |
97 | { | |
98 | public: | |
99 | wxIconHandler(const wxString& name, const wxString& ext, long type) | |
100 | : wxGDIImageHandler(name, ext, type) | |
101 | { | |
102 | } | |
103 | ||
104 | // creating and saving icons is not supported | |
105 | virtual bool Create(wxGDIImage *WXUNUSED(image), | |
106 | void *WXUNUSED(data), | |
107 | long WXUNUSED(flags), | |
108 | int WXUNUSED(width), | |
109 | int WXUNUSED(height), | |
110 | int WXUNUSED(depth) = 1) | |
111 | { | |
112 | return FALSE; | |
113 | } | |
114 | ||
115 | virtual bool Save(wxGDIImage *WXUNUSED(image), | |
116 | const wxString& WXUNUSED(name), | |
117 | int WXUNUSED(type)) | |
118 | { | |
119 | return FALSE; | |
120 | } | |
121 | ||
122 | virtual bool Load(wxGDIImage *image, | |
123 | const wxString& name, | |
124 | long flags, | |
125 | int desiredWidth, int desiredHeight) | |
126 | { | |
127 | wxIcon *icon = wxDynamicCast(image, wxIcon); | |
128 | wxCHECK_MSG( icon, FALSE, _T("wxIconHandler only works with icons") ); | |
129 | ||
130 | return LoadIcon(icon, name, flags, desiredWidth, desiredHeight); | |
131 | } | |
132 | ||
133 | protected: | |
134 | virtual bool LoadIcon(wxIcon *icon, | |
135 | const wxString& name, long flags, | |
136 | int desiredWidth = -1, int desiredHeight = -1) = 0; | |
137 | }; | |
138 | ||
139 | class WXDLLEXPORT wxICOFileHandler : public wxIconHandler | |
140 | { | |
141 | public: | |
142 | wxICOFileHandler() : wxIconHandler(_T("ICO icon file"), | |
143 | _T("ico"), | |
144 | wxBITMAP_TYPE_ICO) | |
145 | { | |
146 | } | |
147 | ||
148 | virtual bool LoadIcon(wxIcon *icon, | |
149 | const wxString& name, long flags, | |
150 | int desiredWidth = -1, int desiredHeight = -1); | |
151 | ||
152 | private: | |
153 | DECLARE_DYNAMIC_CLASS(wxICOFileHandler) | |
154 | }; | |
155 | ||
156 | class WXDLLEXPORT wxICOResourceHandler: public wxIconHandler | |
157 | { | |
158 | public: | |
159 | wxICOResourceHandler() : wxIconHandler(_T("ICO resource"), | |
160 | _T("ico"), | |
161 | wxBITMAP_TYPE_ICO_RESOURCE) | |
162 | { | |
163 | } | |
164 | ||
165 | virtual bool LoadIcon(wxIcon *icon, | |
166 | const wxString& name, long flags, | |
167 | int desiredWidth = -1, int desiredHeight = -1); | |
168 | ||
169 | private: | |
170 | DECLARE_DYNAMIC_CLASS(wxICOResourceHandler) | |
171 | }; | |
172 | ||
173 | // ---------------------------------------------------------------------------- | |
174 | // wxWin macros | |
175 | // ---------------------------------------------------------------------------- | |
176 | ||
0d0512bd VZ |
177 | IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler) |
178 | IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler) | |
179 | IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxGDIImageHandler) | |
180 | IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxGDIImageHandler) | |
0d0512bd VZ |
181 | |
182 | // ---------------------------------------------------------------------------- | |
183 | // private functions | |
184 | // ---------------------------------------------------------------------------- | |
185 | ||
186 | static wxSize GetHiconSize(HICON hicon); | |
187 | ||
188 | // ============================================================================ | |
189 | // implementation | |
190 | // ============================================================================ | |
191 | ||
192 | wxList wxGDIImage::ms_handlers; | |
193 | ||
194 | // ---------------------------------------------------------------------------- | |
195 | // wxGDIImage functions forwarded to wxGDIImageRefData | |
196 | // ---------------------------------------------------------------------------- | |
197 | ||
198 | bool wxGDIImage::FreeResource(bool WXUNUSED(force)) | |
199 | { | |
200 | if ( !IsNull() ) | |
201 | { | |
202 | GetGDIImageData()->Free(); | |
203 | GetGDIImageData()->m_handle = 0; | |
204 | } | |
205 | ||
206 | return TRUE; | |
207 | } | |
208 | ||
209 | WXHANDLE wxGDIImage::GetResourceHandle() | |
210 | { | |
211 | return GetHandle(); | |
212 | } | |
213 | ||
214 | // ---------------------------------------------------------------------------- | |
215 | // wxGDIImage handler stuff | |
216 | // ---------------------------------------------------------------------------- | |
217 | ||
218 | void wxGDIImage::AddHandler(wxGDIImageHandler *handler) | |
219 | { | |
220 | ms_handlers.Append(handler); | |
221 | } | |
222 | ||
223 | void wxGDIImage::InsertHandler(wxGDIImageHandler *handler) | |
224 | { | |
225 | ms_handlers.Insert(handler); | |
226 | } | |
227 | ||
228 | bool wxGDIImage::RemoveHandler(const wxString& name) | |
229 | { | |
230 | wxGDIImageHandler *handler = FindHandler(name); | |
231 | if ( handler ) | |
232 | { | |
233 | ms_handlers.DeleteObject(handler); | |
234 | return TRUE; | |
235 | } | |
236 | else | |
237 | return FALSE; | |
238 | } | |
239 | ||
240 | wxGDIImageHandler *wxGDIImage::FindHandler(const wxString& name) | |
241 | { | |
242 | wxNode *node = ms_handlers.First(); | |
243 | while ( node ) | |
244 | { | |
245 | wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); | |
246 | if ( handler->GetName() == name ) | |
247 | return handler; | |
248 | node = node->Next(); | |
249 | } | |
250 | ||
251 | return NULL; | |
252 | } | |
253 | ||
254 | wxGDIImageHandler *wxGDIImage::FindHandler(const wxString& extension, | |
255 | long type) | |
256 | { | |
257 | wxNode *node = ms_handlers.First(); | |
258 | while ( node ) | |
259 | { | |
260 | wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); | |
261 | if ( (handler->GetExtension() = extension) && | |
262 | (type == -1 || handler->GetType() == type) ) | |
263 | { | |
264 | return handler; | |
265 | } | |
266 | ||
267 | node = node->Next(); | |
268 | } | |
269 | return NULL; | |
270 | } | |
271 | ||
272 | wxGDIImageHandler *wxGDIImage::FindHandler(long type) | |
273 | { | |
274 | wxNode *node = ms_handlers.First(); | |
275 | while ( node ) | |
276 | { | |
277 | wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); | |
278 | if ( handler->GetType() == type ) | |
279 | return handler; | |
280 | ||
281 | node = node->Next(); | |
282 | } | |
283 | ||
284 | return NULL; | |
285 | } | |
286 | ||
287 | void wxGDIImage::CleanUpHandlers() | |
288 | { | |
289 | wxNode *node = ms_handlers.First(); | |
290 | while ( node ) | |
291 | { | |
292 | wxGDIImageHandler *handler = (wxGDIImageHandler *)node->Data(); | |
293 | wxNode *next = node->Next(); | |
294 | delete handler; | |
295 | delete node; | |
296 | node = next; | |
297 | } | |
298 | } | |
299 | ||
300 | void wxGDIImage::InitStandardHandlers() | |
301 | { | |
302 | AddHandler(new wxBMPResourceHandler); | |
303 | AddHandler(new wxBMPFileHandler); | |
304 | ||
f66f0fd7 GRG |
305 | // GRG: Add these handlers by default if XPM support is enabled |
306 | ||
307 | #if wxUSE_XPM_IN_MSW | |
308 | AddHandler(new wxXPMFileHandler); | |
309 | AddHandler(new wxXPMDataHandler); | |
310 | #endif // wxUSE_XPM_IN_MSW | |
0d0512bd VZ |
311 | |
312 | AddHandler(new wxICOResourceHandler); | |
313 | AddHandler(new wxICOFileHandler); | |
314 | } | |
315 | ||
316 | // ---------------------------------------------------------------------------- | |
317 | // wxBitmap handlers | |
318 | // ---------------------------------------------------------------------------- | |
319 | ||
320 | bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, | |
321 | const wxString& name, long WXUNUSED(flags), | |
322 | int WXUNUSED(desiredWidth), | |
323 | int WXUNUSED(desiredHeight)) | |
324 | { | |
325 | // TODO: load colourmap. | |
326 | bitmap->SetHBITMAP((WXHBITMAP)::LoadBitmap(wxGetInstance(), name)); | |
327 | ||
328 | wxBitmapRefData *data = bitmap->GetBitmapData(); | |
329 | if ( bitmap->Ok() ) | |
330 | { | |
331 | BITMAP bm; | |
332 | if ( !::GetObject(GetHbitmapOf(*bitmap), sizeof(BITMAP), (LPSTR) &bm) ) | |
333 | { | |
f6bcfd97 | 334 | wxLogLastError(wxT("GetObject(HBITMAP)")); |
0d0512bd VZ |
335 | } |
336 | ||
337 | data->m_width = bm.bmWidth; | |
338 | data->m_height = bm.bmHeight; | |
339 | data->m_depth = bm.bmBitsPixel; | |
340 | } | |
341 | else | |
342 | { | |
343 | // it's probably not found | |
344 | wxLogError(wxT("Can't load bitmap '%s' from resources! Check .rc file."), | |
345 | name.c_str()); | |
346 | } | |
347 | ||
348 | return bitmap->Ok(); | |
349 | } | |
350 | ||
351 | bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, | |
352 | const wxString& name, long WXUNUSED(flags), | |
353 | int WXUNUSED(desiredWidth), | |
354 | int WXUNUSED(desiredHeight)) | |
355 | { | |
356 | #if wxUSE_IMAGE_LOADING_IN_MSW | |
357 | wxPalette *palette = NULL; | |
358 | bool success = wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0; | |
359 | if ( success && palette ) | |
360 | { | |
361 | bitmap->SetPalette(*palette); | |
362 | } | |
363 | ||
364 | // it was copied by the bitmap if it was loaded successfully | |
365 | delete palette; | |
366 | ||
367 | return success; | |
368 | #else | |
369 | return FALSE; | |
370 | #endif | |
371 | } | |
372 | ||
373 | bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, | |
374 | const wxString& name, | |
375 | int WXUNUSED(type), | |
376 | const wxPalette *pal) | |
377 | { | |
378 | #if wxUSE_IMAGE_LOADING_IN_MSW | |
379 | wxPalette *actualPalette = (wxPalette *)pal; | |
380 | if ( !actualPalette ) | |
381 | actualPalette = bitmap->GetPalette(); | |
382 | return wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0; | |
383 | #else | |
384 | return FALSE; | |
385 | #endif | |
386 | } | |
387 | ||
388 | // ---------------------------------------------------------------------------- | |
389 | // wxIcon handlers | |
390 | // ---------------------------------------------------------------------------- | |
391 | ||
392 | bool wxICOFileHandler::LoadIcon(wxIcon *icon, | |
393 | const wxString& name, | |
394 | long flags, | |
395 | int desiredWidth, int desiredHeight) | |
396 | { | |
397 | #if wxUSE_RESOURCE_LOADING_IN_MSW | |
398 | icon->UnRef(); | |
399 | ||
400 | // actual size | |
401 | wxSize size; | |
402 | ||
403 | #ifdef __WIN32__ | |
404 | HICON hicon = ::ExtractIcon(wxGetInstance(), name, 0 /* first */); | |
405 | if ( !hicon ) | |
406 | { | |
407 | wxLogSysError(_T("Failed to load icon from the file '%s'"), | |
408 | name.c_str()); | |
409 | ||
410 | return FALSE; | |
411 | } | |
412 | ||
413 | size = GetHiconSize(hicon); | |
414 | #else // Win16 | |
415 | HICON hicon = ReadIconFile((wxChar *)name.c_str(), | |
416 | wxGetInstance(), | |
417 | &size.x, &size.y); | |
418 | #endif // Win32/Win16 | |
419 | ||
420 | if ( (desiredWidth != -1 && desiredWidth != size.x) || | |
421 | (desiredHeight != -1 && desiredHeight != size.y) ) | |
422 | { | |
f6bcfd97 | 423 | wxLogDebug(_T("Returning FALSE from wxICOFileHandler::Load because of the size mismatch: actual (%d, %d), requested (%d, %d)"), |
0d0512bd VZ |
424 | size.x, size.y, |
425 | desiredWidth, desiredHeight); | |
426 | ||
427 | ::DestroyIcon(hicon); | |
428 | ||
429 | return FALSE; | |
430 | } | |
431 | ||
432 | icon->SetHICON((WXHICON)hicon); | |
433 | icon->SetSize(size.x, size.y); | |
434 | ||
435 | return icon->Ok(); | |
436 | #else | |
437 | return FALSE; | |
438 | #endif | |
439 | } | |
440 | ||
441 | bool wxICOResourceHandler::LoadIcon(wxIcon *icon, | |
442 | const wxString& name, | |
443 | long flags, | |
444 | int desiredWidth, int desiredHeight) | |
445 | { | |
446 | HICON hicon; | |
447 | ||
448 | #if defined(__WIN32__) && !defined(__SC__) | |
449 | if ( desiredWidth != -1 && desiredHeight != -1 ) | |
450 | { | |
451 | hicon = (HICON)::LoadImage(wxGetInstance(), name, IMAGE_ICON, | |
452 | desiredWidth, desiredHeight, | |
453 | LR_DEFAULTCOLOR); | |
454 | } | |
455 | else | |
456 | #endif // Win32 | |
457 | { | |
458 | hicon = ::LoadIcon(wxGetInstance(), name); | |
459 | } | |
460 | ||
461 | wxSize size = GetHiconSize(hicon); | |
462 | icon->SetSize(size.x, size.y); | |
463 | ||
464 | // Override the found values with desired values | |
465 | if ( desiredWidth > -1 && desiredHeight > -1 ) | |
466 | { | |
467 | icon->SetSize(desiredWidth, desiredHeight); | |
468 | } | |
469 | ||
470 | icon->SetHICON((WXHICON)hicon); | |
471 | ||
472 | return icon->Ok(); | |
473 | } | |
474 | ||
475 | // ---------------------------------------------------------------------------- | |
476 | // private functions | |
477 | // ---------------------------------------------------------------------------- | |
478 | ||
479 | static wxSize GetHiconSize(HICON hicon) | |
480 | { | |
481 | wxSize size(32, 32); // default | |
482 | ||
483 | #ifdef __WIN32__ | |
484 | // Win32s doesn't have GetIconInfo function... | |
485 | if ( hicon && wxGetOsVersion() != wxWIN32S ) | |
486 | { | |
487 | ICONINFO info; | |
488 | if ( !::GetIconInfo(hicon, &info) ) | |
489 | { | |
f6bcfd97 | 490 | wxLogLastError(wxT("GetIconInfo")); |
0d0512bd VZ |
491 | } |
492 | else | |
493 | { | |
494 | HBITMAP hbmp = info.hbmMask; | |
495 | if ( hbmp ) | |
496 | { | |
497 | BITMAP bm; | |
498 | if ( ::GetObject(hbmp, sizeof(BITMAP), (LPSTR) &bm) ) | |
499 | { | |
500 | size = wxSize(bm.bmWidth, bm.bmHeight); | |
501 | } | |
502 | ||
503 | ::DeleteObject(info.hbmMask); | |
504 | } | |
505 | if ( info.hbmColor ) | |
506 | ::DeleteObject(info.hbmColor); | |
507 | } | |
508 | } | |
509 | #endif | |
510 | ||
511 | return size; | |
512 | } |