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1 | //////////////////////////////////////////////////////////////////////////// |
2 | // Name: bitmap.cpp | |
3 | // Purpose: wxBitmap | |
4 | // Author: William Osborne | |
5 | // Modified by: | |
6 | // Created: 10/08/04 | |
7 | // RCS-ID: $Id: | |
8 | // Copyright: (c) William Osborne | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
21 | #pragma implementation "bitmap.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 <stdio.h> | |
33 | ||
34 | #include "wx/list.h" | |
35 | #include "wx/utils.h" | |
36 | #include "wx/app.h" | |
37 | #include "wx/palette.h" | |
38 | #include "wx/dcmemory.h" | |
39 | #include "wx/bitmap.h" | |
40 | #include "wx/icon.h" | |
41 | #endif | |
42 | ||
43 | #include "wx/log.h" | |
44 | ||
45 | #if wxUSE_WXDIB | |
46 | #include "wx/palmos/dib.h" | |
47 | #endif | |
48 | ||
49 | #include "wx/image.h" | |
50 | #include "wx/xpmdecod.h" | |
51 | ||
52 | #ifdef wxHAVE_RAW_BITMAP | |
53 | #include "wx/rawbmp.h" | |
54 | #endif | |
55 | ||
56 | // missing from mingw32 header | |
57 | #ifndef CLR_INVALID | |
58 | #define CLR_INVALID ((COLORREF)-1) | |
59 | #endif // no CLR_INVALID | |
60 | ||
61 | // ---------------------------------------------------------------------------- | |
62 | // Bitmap data | |
63 | // ---------------------------------------------------------------------------- | |
64 | ||
65 | class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData | |
66 | { | |
67 | public: | |
68 | wxBitmapRefData(); | |
69 | virtual ~wxBitmapRefData() { Free(); } | |
70 | ||
71 | virtual void Free(); | |
72 | ||
73 | // set the mask object to use as the mask, we take ownership of it | |
74 | void SetMask(wxMask *mask) | |
75 | { | |
76 | delete m_bitmapMask; | |
77 | m_bitmapMask = mask; | |
78 | } | |
79 | ||
80 | // return the mask | |
81 | wxMask *GetMask() const { return m_bitmapMask; } | |
82 | ||
83 | public: | |
84 | #if wxUSE_PALETTE | |
85 | wxPalette m_bitmapPalette; | |
86 | #endif // wxUSE_PALETTE | |
87 | ||
88 | #ifdef __WXDEBUG__ | |
89 | wxDC *m_selectedInto; | |
90 | #endif // __WXDEBUG__ | |
91 | ||
92 | #if wxUSE_WXDIB | |
93 | wxDIB *m_dib; | |
94 | #endif | |
95 | ||
96 | bool m_hasAlpha; | |
97 | ||
98 | bool m_isDIB; | |
99 | ||
100 | private: | |
101 | wxMask *m_bitmapMask; | |
102 | ||
103 | DECLARE_NO_COPY_CLASS(wxBitmapRefData) | |
104 | }; | |
105 | ||
106 | // ---------------------------------------------------------------------------- | |
107 | // macros | |
108 | // ---------------------------------------------------------------------------- | |
109 | ||
110 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) | |
111 | IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) | |
112 | ||
113 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) | |
114 | ||
115 | // ============================================================================ | |
116 | // implementation | |
117 | // ============================================================================ | |
118 | ||
119 | // ---------------------------------------------------------------------------- | |
120 | // helper functions | |
121 | // ---------------------------------------------------------------------------- | |
122 | ||
123 | #if !wxUSE_WXDIB | |
124 | #define NEVER_USE_DIB | |
125 | #else | |
126 | static inline bool wxShouldCreateDIB(int w, int h, int d, WXHDC hdc) | |
127 | { | |
128 | // here is the logic: | |
129 | // | |
130 | // (a) if hdc is specified, the caller explicitly wants DDB | |
131 | // (b) otherwise, create a DIB if depth >= 24 (we don't support 16bpp | |
132 | // or less DIBs anyhow) | |
133 | // (c) finally, create DIBs under Win9x even if the depth hasn't been | |
134 | // explicitly specified but the current display depth is 24 or | |
135 | // more and the image is "big", i.e. > 16Mb which is the | |
136 | // theoretical limit for DDBs under Win9x | |
137 | // | |
138 | // consequences (all of which seem to make sense): | |
139 | // | |
140 | // (i) by default, DDBs are created (depth == -1 usually) | |
141 | // (ii) DIBs can be created by explicitly specifying the depth | |
142 | // (iii) using a DC always forces creating a DDB | |
143 | return !hdc && | |
144 | (d >= 24 || | |
145 | (d == -1 && | |
146 | wxDIB::GetLineSize(w, wxDisplayDepth())*h > 16*1024*1024)); | |
147 | } | |
148 | ||
149 | #define SOMETIMES_USE_DIB | |
150 | #endif // different DIB usage scenarious | |
151 | ||
152 | // ---------------------------------------------------------------------------- | |
153 | // wxBitmapRefData | |
154 | // ---------------------------------------------------------------------------- | |
155 | ||
156 | wxBitmapRefData::wxBitmapRefData() | |
157 | { | |
158 | #ifdef __WXDEBUG__ | |
159 | m_selectedInto = NULL; | |
160 | #endif | |
161 | m_bitmapMask = NULL; | |
162 | ||
163 | m_hBitmap = (WXHBITMAP) NULL; | |
164 | #if wxUSE_WXDIB | |
165 | m_dib = NULL; | |
166 | #endif | |
167 | ||
168 | m_isDIB = | |
169 | m_hasAlpha = FALSE; | |
170 | } | |
171 | ||
172 | void wxBitmapRefData::Free() | |
173 | { | |
174 | } | |
175 | ||
176 | // ---------------------------------------------------------------------------- | |
177 | // wxBitmap creation | |
178 | // ---------------------------------------------------------------------------- | |
179 | ||
180 | // this function should be called from all wxBitmap ctors | |
181 | void wxBitmap::Init() | |
182 | { | |
183 | } | |
184 | ||
185 | wxGDIImageRefData *wxBitmap::CreateData() const | |
186 | { | |
187 | return NULL; | |
188 | } | |
189 | ||
190 | #ifdef __WIN32__ | |
191 | ||
192 | bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) | |
193 | { | |
194 | return FALSE; | |
195 | } | |
196 | ||
197 | #endif // Win32 | |
198 | ||
199 | bool wxBitmap::CopyFromCursor(const wxCursor& cursor) | |
200 | { | |
201 | return FALSE; | |
202 | } | |
203 | ||
204 | bool wxBitmap::CopyFromIcon(const wxIcon& icon) | |
205 | { | |
206 | return FALSE; | |
207 | } | |
208 | ||
209 | #ifndef NEVER_USE_DIB | |
210 | ||
211 | bool wxBitmap::CopyFromDIB(const wxDIB& dib) | |
212 | { | |
213 | return FALSE: | |
214 | } | |
215 | ||
216 | #endif // NEVER_USE_DIB | |
217 | ||
218 | wxBitmap::~wxBitmap() | |
219 | { | |
220 | } | |
221 | ||
222 | wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) | |
223 | { | |
224 | Init(); | |
225 | } | |
226 | ||
227 | // Create from XPM data | |
228 | #if wxUSE_IMAGE && wxUSE_XPM | |
229 | bool wxBitmap::CreateFromXpm(const char **data) | |
230 | #else | |
231 | bool wxBitmap::CreateFromXpm(const char **WXUNUSED(data)) | |
232 | #endif | |
233 | { | |
234 | return FALSE; | |
235 | } | |
236 | ||
237 | wxBitmap::wxBitmap(int w, int h, int d) | |
238 | { | |
239 | } | |
240 | ||
241 | wxBitmap::wxBitmap(int w, int h, const wxDC& dc) | |
242 | { | |
243 | } | |
244 | ||
245 | wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) | |
246 | { | |
247 | } | |
248 | ||
249 | wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) | |
250 | { | |
251 | } | |
252 | ||
253 | bool wxBitmap::Create(int width, int height, int depth) | |
254 | { | |
255 | return FALSE; | |
256 | } | |
257 | ||
258 | bool wxBitmap::Create(int width, int height, const wxDC& dc) | |
259 | { | |
260 | return FALSE; | |
261 | } | |
262 | ||
263 | bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc) | |
264 | { | |
265 | return FALSE; | |
266 | } | |
267 | ||
268 | #if wxUSE_IMAGE | |
269 | ||
270 | // ---------------------------------------------------------------------------- | |
271 | // wxImage to/from conversions | |
272 | // ---------------------------------------------------------------------------- | |
273 | ||
274 | #if wxUSE_WXDIB | |
275 | ||
276 | bool wxBitmap::CreateFromImage(const wxImage& image, int depth) | |
277 | { | |
278 | return FALSE; | |
279 | } | |
280 | ||
281 | bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc) | |
282 | { | |
283 | return FALSE; | |
284 | } | |
285 | ||
286 | bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) | |
287 | { | |
288 | return FALSE; | |
289 | } | |
290 | ||
291 | wxImage wxBitmap::ConvertToImage() const | |
292 | { | |
293 | wxImage image; | |
294 | return image; | |
295 | } | |
296 | ||
297 | #endif // wxUSE_WXDIB | |
298 | ||
299 | #endif // wxUSE_IMAGE | |
300 | ||
301 | // ---------------------------------------------------------------------------- | |
302 | // loading and saving bitmaps | |
303 | // ---------------------------------------------------------------------------- | |
304 | ||
305 | bool wxBitmap::LoadFile(const wxString& filename, long type) | |
306 | { | |
307 | return FALSE; | |
308 | } | |
309 | ||
310 | bool wxBitmap::Create(void *data, long type, int width, int height, int depth) | |
311 | { | |
312 | return FALSE; | |
313 | } | |
314 | ||
315 | bool wxBitmap::SaveFile(const wxString& filename, | |
316 | int type, | |
317 | const wxPalette *palette) | |
318 | { | |
319 | return FALSE; | |
320 | } | |
321 | ||
322 | // ---------------------------------------------------------------------------- | |
323 | // sub bitmap extraction | |
324 | // ---------------------------------------------------------------------------- | |
325 | ||
326 | wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const | |
327 | { | |
328 | wxBitmap ret( 0, 0 ); | |
329 | return ret; | |
330 | } | |
331 | ||
332 | // ---------------------------------------------------------------------------- | |
333 | // wxBitmap accessors | |
334 | // ---------------------------------------------------------------------------- | |
335 | ||
336 | #if wxUSE_PALETTE | |
337 | wxPalette* wxBitmap::GetPalette() const | |
338 | { | |
339 | return (wxPalette *) NULL; | |
340 | } | |
341 | #endif | |
342 | ||
343 | wxMask *wxBitmap::GetMask() const | |
344 | { | |
345 | return (wxMask *) NULL; | |
346 | } | |
347 | ||
348 | #ifdef __WXDEBUG__ | |
349 | ||
350 | wxDC *wxBitmap::GetSelectedInto() const | |
351 | { | |
352 | return (wxDC *) NULL; | |
353 | } | |
354 | ||
355 | #endif | |
356 | ||
357 | #if WXWIN_COMPATIBILITY_2_4 | |
358 | ||
359 | int wxBitmap::GetQuality() const | |
360 | { | |
361 | return 0; | |
362 | } | |
363 | ||
364 | #endif // WXWIN_COMPATIBILITY_2_4 | |
365 | ||
366 | void wxBitmap::UseAlpha() | |
367 | { | |
368 | } | |
369 | ||
370 | bool wxBitmap::HasAlpha() const | |
371 | { | |
372 | return FALSE; | |
373 | } | |
374 | ||
375 | // ---------------------------------------------------------------------------- | |
376 | // wxBitmap setters | |
377 | // ---------------------------------------------------------------------------- | |
378 | ||
379 | #ifdef __WXDEBUG__ | |
380 | ||
381 | void wxBitmap::SetSelectedInto(wxDC *dc) | |
382 | { | |
383 | } | |
384 | ||
385 | #endif | |
386 | ||
387 | #if wxUSE_PALETTE | |
388 | ||
389 | void wxBitmap::SetPalette(const wxPalette& palette) | |
390 | { | |
391 | } | |
392 | ||
393 | #endif // wxUSE_PALETTE | |
394 | ||
395 | void wxBitmap::SetMask(wxMask *mask) | |
396 | { | |
397 | } | |
398 | ||
399 | #if WXWIN_COMPATIBILITY_2_4 | |
400 | ||
401 | void wxBitmap::SetQuality(int WXUNUSED(quality)) | |
402 | { | |
403 | } | |
404 | ||
405 | #endif // WXWIN_COMPATIBILITY_2_4 | |
406 | ||
407 | // ---------------------------------------------------------------------------- | |
408 | // raw bitmap access support | |
409 | // ---------------------------------------------------------------------------- | |
410 | ||
411 | #ifdef wxHAVE_RAW_BITMAP | |
412 | void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) | |
413 | { | |
414 | return NULL; | |
415 | } | |
416 | ||
417 | void wxBitmap::UngetRawData(wxPixelDataBase& dataBase) | |
418 | { | |
419 | return; | |
420 | } | |
421 | #endif // #ifdef wxHAVE_RAW_BITMAP | |
422 | ||
423 | // ---------------------------------------------------------------------------- | |
424 | // wxMask | |
425 | // ---------------------------------------------------------------------------- | |
426 | ||
427 | wxMask::wxMask() | |
428 | { | |
429 | m_maskBitmap = 0; | |
430 | } | |
431 | ||
432 | // Construct a mask from a bitmap and a colour indicating | |
433 | // the transparent area | |
434 | wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) | |
435 | { | |
436 | } | |
437 | ||
438 | // Construct a mask from a bitmap and a palette index indicating | |
439 | // the transparent area | |
440 | wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) | |
441 | { | |
442 | } | |
443 | ||
444 | // Construct a mask from a mono bitmap (copies the bitmap). | |
445 | wxMask::wxMask(const wxBitmap& bitmap) | |
446 | { | |
447 | } | |
448 | ||
449 | wxMask::~wxMask() | |
450 | { | |
451 | } | |
452 | ||
453 | // Create a mask from a mono bitmap (copies the bitmap). | |
454 | bool wxMask::Create(const wxBitmap& bitmap) | |
455 | { | |
456 | return FALSE; | |
457 | } | |
458 | ||
459 | // Create a mask from a bitmap and a palette index indicating | |
460 | // the transparent area | |
461 | bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) | |
462 | { | |
463 | return FALSE; | |
464 | } | |
465 | ||
466 | // Create a mask from a bitmap and a colour indicating | |
467 | // the transparent area | |
468 | bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) | |
469 | { | |
470 | return FALSE; | |
471 | } | |
472 | ||
473 | // ---------------------------------------------------------------------------- | |
474 | // wxBitmapHandler | |
475 | // ---------------------------------------------------------------------------- | |
476 | ||
477 | bool wxBitmapHandler::Create(wxGDIImage *image, | |
478 | void *data, | |
479 | long flags, | |
480 | int width, int height, int depth) | |
481 | { | |
482 | return FALSE; | |
483 | } | |
484 | ||
485 | bool wxBitmapHandler::Load(wxGDIImage *image, | |
486 | const wxString& name, | |
487 | long flags, | |
488 | int width, int height) | |
489 | { | |
490 | return FALSE; | |
491 | } | |
492 | ||
493 | bool wxBitmapHandler::Save(wxGDIImage *image, | |
494 | const wxString& name, | |
495 | int type) | |
496 | { | |
497 | return FALSE; | |
498 | } | |
499 | ||
500 | bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), | |
501 | void *WXUNUSED(data), | |
502 | long WXUNUSED(type), | |
503 | int WXUNUSED(width), | |
504 | int WXUNUSED(height), | |
505 | int WXUNUSED(depth)) | |
506 | { | |
507 | return FALSE; | |
508 | } | |
509 | ||
510 | bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), | |
511 | const wxString& WXUNUSED(name), | |
512 | long WXUNUSED(type), | |
513 | int WXUNUSED(desiredWidth), | |
514 | int WXUNUSED(desiredHeight)) | |
515 | { | |
516 | return FALSE; | |
517 | } | |
518 | ||
519 | bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), | |
520 | const wxString& WXUNUSED(name), | |
521 | int WXUNUSED(type), | |
522 | const wxPalette *WXUNUSED(palette)) | |
523 | { | |
524 | return FALSE; | |
525 | } |