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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: bitmap.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // RCS-ID: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "bitmap.h" | |
12 | #endif | |
13 | ||
14 | #include "wx/bitmap.h" | |
15 | #include "wx/icon.h" | |
16 | #include "wx/filefn.h" | |
17 | #include "wx/image.h" | |
18 | ||
19 | #include <gdk/gdk.h> | |
20 | #include <gdk/gdkprivate.h> | |
21 | #include <gdk/gdkx.h> | |
22 | ||
23 | //----------------------------------------------------------------------------- | |
24 | // wxMask | |
25 | //----------------------------------------------------------------------------- | |
26 | ||
27 | IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject) | |
28 | ||
29 | wxMask::wxMask() | |
30 | { | |
31 | m_bitmap = (GdkBitmap *) NULL; | |
32 | } | |
33 | ||
34 | wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour ) | |
35 | { | |
36 | m_bitmap = (GdkBitmap *) NULL; | |
37 | Create( bitmap, colour ); | |
38 | } | |
39 | ||
40 | wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex ) | |
41 | { | |
42 | m_bitmap = (GdkBitmap *) NULL; | |
43 | Create( bitmap, paletteIndex ); | |
44 | } | |
45 | ||
46 | wxMask::wxMask( const wxBitmap& bitmap ) | |
47 | { | |
48 | m_bitmap = (GdkBitmap *) NULL; | |
49 | Create( bitmap ); | |
50 | } | |
51 | ||
52 | wxMask::~wxMask() | |
53 | { | |
54 | if (m_bitmap) | |
55 | gdk_bitmap_unref( m_bitmap ); | |
56 | } | |
57 | ||
58 | bool wxMask::Create( const wxBitmap& bitmap, | |
59 | const wxColour& colour ) | |
60 | { | |
61 | if (m_bitmap) | |
62 | { | |
63 | gdk_bitmap_unref( m_bitmap ); | |
64 | m_bitmap = (GdkBitmap*) NULL; | |
65 | } | |
66 | ||
67 | wxImage image( bitmap ); | |
68 | if (!image.Ok()) return FALSE; | |
69 | ||
70 | GdkVisual *visual = gdk_visual_get_system(); | |
71 | ||
72 | GdkImage *mask_image = gdk_image_new( GDK_IMAGE_FASTEST, visual, image.GetWidth(), image.GetHeight() ); | |
73 | if (!mask_image) return FALSE; | |
74 | ||
75 | GdkWindow *parent = (GdkWindow*) &gdk_root_parent; | |
76 | m_bitmap = gdk_pixmap_new( parent, image.GetWidth(), image.GetHeight(), 1 ); | |
77 | ||
78 | ||
79 | unsigned char *data = image.GetData(); | |
80 | int index = 0; | |
81 | ||
82 | unsigned char red = colour.Red(); | |
83 | unsigned char green = colour.Green(); | |
84 | unsigned char blue = colour.Blue(); | |
85 | ||
86 | int bpp = visual->depth; | |
87 | if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; | |
88 | if (bpp == 15) | |
89 | { | |
90 | red = red & 0xf8; | |
91 | blue = blue & 0xf8; | |
92 | green = green & 0xf8; | |
93 | } | |
94 | if (bpp == 16) | |
95 | { | |
96 | red = red & 0xf8; | |
97 | blue = blue & 0xfc; | |
98 | green = green & 0xf8; | |
99 | } | |
100 | ||
101 | for (int j = 0; j < image.GetHeight(); j++) | |
102 | for (int i = 0; i < image.GetWidth(); i++) | |
103 | { | |
104 | if ((data[index] == red) && | |
105 | (data[index+1] == green) && | |
106 | (data[index+2] == blue)) | |
107 | { | |
108 | gdk_image_put_pixel( mask_image, i, j, 1 ); | |
109 | } | |
110 | else | |
111 | { | |
112 | gdk_image_put_pixel( mask_image, i, j, 1 ); | |
113 | } | |
114 | index += 3; | |
115 | } | |
116 | ||
117 | GdkGC *mask_gc = gdk_gc_new( m_bitmap ); | |
118 | ||
119 | gdk_draw_image( m_bitmap, mask_gc, mask_image, 0, 0, 0, 0, image.GetWidth(), image.GetHeight() ); | |
120 | ||
121 | gdk_gc_unref( mask_gc ); | |
122 | gdk_image_destroy( mask_image ); | |
123 | ||
124 | return FALSE; | |
125 | } | |
126 | ||
127 | bool wxMask::Create( const wxBitmap& WXUNUSED(bitmap), | |
128 | int WXUNUSED(paletteIndex) ) | |
129 | { | |
130 | if (m_bitmap) | |
131 | { | |
132 | gdk_bitmap_unref( m_bitmap ); | |
133 | m_bitmap = (GdkBitmap*) NULL; | |
134 | } | |
135 | ||
136 | wxFAIL_MSG( wxT("not implemented") ); | |
137 | ||
138 | return FALSE; | |
139 | } | |
140 | ||
141 | bool wxMask::Create( const wxBitmap& bitmap ) | |
142 | { | |
143 | if (m_bitmap) | |
144 | { | |
145 | gdk_bitmap_unref( m_bitmap ); | |
146 | m_bitmap = (GdkBitmap*) NULL; | |
147 | } | |
148 | ||
149 | if (!bitmap.Ok()) return FALSE; | |
150 | ||
151 | wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") ); | |
152 | ||
153 | m_bitmap = gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, bitmap.GetWidth(), bitmap.GetHeight(), 1 ); | |
154 | ||
155 | if (!m_bitmap) return FALSE; | |
156 | ||
157 | GdkGC *gc = gdk_gc_new( m_bitmap ); | |
158 | ||
159 | gdk_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() ); | |
160 | ||
161 | gdk_gc_unref( gc ); | |
162 | ||
163 | return TRUE; | |
164 | } | |
165 | ||
166 | GdkBitmap *wxMask::GetBitmap() const | |
167 | { | |
168 | return m_bitmap; | |
169 | } | |
170 | ||
171 | //----------------------------------------------------------------------------- | |
172 | // wxBitmap | |
173 | //----------------------------------------------------------------------------- | |
174 | ||
175 | class wxBitmapRefData: public wxObjectRefData | |
176 | { | |
177 | public: | |
178 | wxBitmapRefData(); | |
179 | ~wxBitmapRefData(); | |
180 | ||
181 | GdkPixmap *m_pixmap; | |
182 | GdkBitmap *m_bitmap; | |
183 | wxMask *m_mask; | |
184 | int m_width; | |
185 | int m_height; | |
186 | int m_bpp; | |
187 | wxPalette *m_palette; | |
188 | }; | |
189 | ||
190 | wxBitmapRefData::wxBitmapRefData() | |
191 | { | |
192 | m_pixmap = (GdkPixmap *) NULL; | |
193 | m_bitmap = (GdkBitmap *) NULL; | |
194 | m_mask = (wxMask *) NULL; | |
195 | m_width = 0; | |
196 | m_height = 0; | |
197 | m_bpp = 0; | |
198 | m_palette = (wxPalette *) NULL; | |
199 | } | |
200 | ||
201 | wxBitmapRefData::~wxBitmapRefData() | |
202 | { | |
203 | if (m_pixmap) gdk_pixmap_unref( m_pixmap ); | |
204 | if (m_bitmap) gdk_bitmap_unref( m_bitmap ); | |
205 | if (m_mask) delete m_mask; | |
206 | if (m_palette) delete m_palette; | |
207 | } | |
208 | ||
209 | //----------------------------------------------------------------------------- | |
210 | ||
211 | #define M_BMPDATA ((wxBitmapRefData *)m_refData) | |
212 | ||
213 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) | |
214 | ||
215 | wxBitmap::wxBitmap() | |
216 | { | |
217 | if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); | |
218 | } | |
219 | ||
220 | wxBitmap::wxBitmap( int width, int height, int depth ) | |
221 | { | |
222 | wxCHECK_RET( (width > 0) && (height > 0), wxT("invalid bitmap size") ) | |
223 | ||
224 | GdkWindow *parent = (GdkWindow*) &gdk_root_parent; | |
225 | if (depth == -1) depth = gdk_window_get_visual( parent )->depth; | |
226 | ||
227 | wxCHECK_RET( (depth == gdk_window_get_visual( parent )->depth) || | |
228 | (depth == 1), wxT("invalid bitmap depth") ) | |
229 | ||
230 | m_refData = new wxBitmapRefData(); | |
231 | M_BMPDATA->m_mask = (wxMask *) NULL; | |
232 | M_BMPDATA->m_width = width; | |
233 | M_BMPDATA->m_height = height; | |
234 | if (depth == 1) | |
235 | { | |
236 | M_BMPDATA->m_bitmap = gdk_pixmap_new( parent, width, height, 1 ); | |
237 | M_BMPDATA->m_bpp = 1; | |
238 | } | |
239 | else | |
240 | { | |
241 | M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth ); | |
242 | M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; | |
243 | } | |
244 | ||
245 | if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); | |
246 | } | |
247 | ||
248 | bool wxBitmap::CreateFromXpm( const char **bits ) | |
249 | { | |
250 | wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") ) | |
251 | ||
252 | m_refData = new wxBitmapRefData(); | |
253 | ||
254 | GdkBitmap *mask = (GdkBitmap*) NULL; | |
255 | GdkWindow *parent = (GdkWindow*) &gdk_root_parent; | |
256 | ||
257 | M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits ); | |
258 | ||
259 | wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") ); | |
260 | ||
261 | if (mask) | |
262 | { | |
263 | M_BMPDATA->m_mask = new wxMask(); | |
264 | M_BMPDATA->m_mask->m_bitmap = mask; | |
265 | } | |
266 | ||
267 | gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); | |
268 | ||
269 | M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ? | |
270 | if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); | |
271 | ||
272 | return TRUE; | |
273 | } | |
274 | ||
275 | wxBitmap::wxBitmap( const wxBitmap& bmp ) | |
276 | { | |
277 | Ref( bmp ); | |
278 | ||
279 | if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); | |
280 | } | |
281 | ||
282 | wxBitmap::wxBitmap( const wxString &filename, int type ) | |
283 | { | |
284 | LoadFile( filename, type ); | |
285 | ||
286 | if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); | |
287 | } | |
288 | ||
289 | wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth)) | |
290 | { | |
291 | m_refData = new wxBitmapRefData(); | |
292 | ||
293 | M_BMPDATA->m_mask = (wxMask *) NULL; | |
294 | M_BMPDATA->m_bitmap = | |
295 | gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height ); | |
296 | M_BMPDATA->m_width = width; | |
297 | M_BMPDATA->m_height = height; | |
298 | M_BMPDATA->m_bpp = 1; | |
299 | ||
300 | wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") ); | |
301 | ||
302 | if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); | |
303 | } | |
304 | ||
305 | wxBitmap::~wxBitmap() | |
306 | { | |
307 | if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this); | |
308 | } | |
309 | ||
310 | wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp ) | |
311 | { | |
312 | if (*this == bmp) return (*this); | |
313 | Ref( bmp ); | |
314 | return *this; | |
315 | } | |
316 | ||
317 | bool wxBitmap::operator == ( const wxBitmap& bmp ) | |
318 | { | |
319 | return m_refData == bmp.m_refData; | |
320 | } | |
321 | ||
322 | bool wxBitmap::operator != ( const wxBitmap& bmp ) | |
323 | { | |
324 | return m_refData != bmp.m_refData; | |
325 | } | |
326 | ||
327 | bool wxBitmap::Ok() const | |
328 | { | |
329 | return (m_refData != NULL); | |
330 | } | |
331 | ||
332 | int wxBitmap::GetHeight() const | |
333 | { | |
334 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); | |
335 | ||
336 | return M_BMPDATA->m_height; | |
337 | } | |
338 | ||
339 | int wxBitmap::GetWidth() const | |
340 | { | |
341 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); | |
342 | ||
343 | return M_BMPDATA->m_width; | |
344 | } | |
345 | ||
346 | int wxBitmap::GetDepth() const | |
347 | { | |
348 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); | |
349 | ||
350 | return M_BMPDATA->m_bpp; | |
351 | } | |
352 | ||
353 | wxMask *wxBitmap::GetMask() const | |
354 | { | |
355 | wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); | |
356 | ||
357 | return M_BMPDATA->m_mask; | |
358 | } | |
359 | ||
360 | void wxBitmap::SetMask( wxMask *mask ) | |
361 | { | |
362 | wxCHECK_RET( Ok(), wxT("invalid bitmap") ); | |
363 | ||
364 | if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; | |
365 | ||
366 | M_BMPDATA->m_mask = mask; | |
367 | } | |
368 | ||
369 | bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) ) | |
370 | { | |
371 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") ); | |
372 | ||
373 | // Try to save the bitmap via wxImage handlers: | |
374 | { | |
375 | wxImage image( *this ); | |
376 | if (image.Ok()) return image.SaveFile( name, type ); | |
377 | } | |
378 | ||
379 | return FALSE; | |
380 | } | |
381 | ||
382 | bool wxBitmap::LoadFile( const wxString &name, int type ) | |
383 | { | |
384 | UnRef(); | |
385 | ||
386 | if (!wxFileExists(name)) return FALSE; | |
387 | ||
388 | if (type == wxBITMAP_TYPE_XPM) | |
389 | { | |
390 | m_refData = new wxBitmapRefData(); | |
391 | ||
392 | GdkBitmap *mask = (GdkBitmap*) NULL; | |
393 | GdkWindow *parent = (GdkWindow*) &gdk_root_parent; | |
394 | ||
395 | M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &mask, NULL, name.fn_str() ); | |
396 | ||
397 | if (mask) | |
398 | { | |
399 | M_BMPDATA->m_mask = new wxMask(); | |
400 | M_BMPDATA->m_mask->m_bitmap = mask; | |
401 | } | |
402 | ||
403 | gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); | |
404 | M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; | |
405 | } | |
406 | else // try if wxImage can load it | |
407 | { | |
408 | wxImage image; | |
409 | if (!image.LoadFile( name, type )) return FALSE; | |
410 | if (image.Ok()) *this = image.ConvertToBitmap(); | |
411 | else return FALSE; | |
412 | } | |
413 | ||
414 | return TRUE; | |
415 | } | |
416 | ||
417 | wxPalette *wxBitmap::GetPalette() const | |
418 | { | |
419 | if (!Ok()) return (wxPalette *) NULL; | |
420 | ||
421 | return M_BMPDATA->m_palette; | |
422 | } | |
423 | ||
424 | void wxBitmap::SetHeight( int height ) | |
425 | { | |
426 | if (!m_refData) m_refData = new wxBitmapRefData(); | |
427 | ||
428 | M_BMPDATA->m_height = height; | |
429 | } | |
430 | ||
431 | void wxBitmap::SetWidth( int width ) | |
432 | { | |
433 | if (!m_refData) m_refData = new wxBitmapRefData(); | |
434 | ||
435 | M_BMPDATA->m_width = width; | |
436 | } | |
437 | ||
438 | void wxBitmap::SetDepth( int depth ) | |
439 | { | |
440 | if (!m_refData) m_refData = new wxBitmapRefData(); | |
441 | ||
442 | M_BMPDATA->m_bpp = depth; | |
443 | } | |
444 | ||
445 | void wxBitmap::SetPixmap( GdkPixmap *pixmap ) | |
446 | { | |
447 | if (!m_refData) m_refData = new wxBitmapRefData(); | |
448 | ||
449 | M_BMPDATA->m_pixmap = pixmap; | |
450 | } | |
451 | ||
452 | GdkPixmap *wxBitmap::GetPixmap() const | |
453 | { | |
454 | wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") ); | |
455 | ||
456 | return M_BMPDATA->m_pixmap; | |
457 | } | |
458 | ||
459 | GdkBitmap *wxBitmap::GetBitmap() const | |
460 | { | |
461 | wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") ); | |
462 | ||
463 | return M_BMPDATA->m_bitmap; | |
464 | } |