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1/////////////////////////////////////////////////////////////////////////////
2// Name: bitmap.cpp
3// Purpose: wxBitmap
4// Author: Julian Smart, Robert Roebling
5// Modified by:
6// Created: 17/09/98
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart, Robert Roebling
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifdef __GNUG__
13#pragma implementation "bitmap.h"
14#endif
15
16#include "wx/bitmap.h"
17#include "wx/icon.h"
18#include "wx/log.h"
19#include "wx/image.h"
20#include "wx/app.h"
21
22#include "wx/x11/private.h"
23
24#if wxUSE_XPM
25#if wxHAVE_LIB_XPM
26#include <X11/xpm.h>
27#else
28#include "wx/xpmdecod.h"
29#include "wx/wfstream.h"
30#endif
31#endif
32#include <math.h>
33
34//-----------------------------------------------------------------------------
35// wxMask
36//-----------------------------------------------------------------------------
37
38IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
39
40wxMask::wxMask()
41{
42 m_bitmap = NULL;
43 m_display = NULL;
44}
45
46wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
47{
48 m_bitmap = NULL;
49 Create( bitmap, colour );
50}
51
52wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
53{
54 m_bitmap = NULL;
55 Create( bitmap, paletteIndex );
56}
57
58wxMask::wxMask( const wxBitmap& bitmap )
59{
60 m_bitmap = NULL;
61 Create( bitmap );
62}
63
64wxMask::~wxMask()
65{
66 if (m_bitmap)
67 XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
68}
69
70bool wxMask::Create( const wxBitmap& bitmap,
71 const wxColour& colour )
72{
73 if (m_bitmap)
74 {
75 XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
76 m_bitmap = NULL;
77 }
78
79 m_display = bitmap.GetDisplay();
80
81 wxImage image( bitmap );
82 if (!image.Ok()) return FALSE;
83
84 m_display = bitmap.GetDisplay();
85
86 Display *xdisplay = (Display*) m_display;
87
88 int xscreen = DefaultScreen( xdisplay );
89 Window xroot = RootWindow( xdisplay, xscreen );
90 Visual* xvisual = DefaultVisual( xdisplay, xscreen );
91 int bpp = DefaultDepth( xdisplay, xscreen );
92
93 m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
94 GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
95
96 XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
97 XSetFillStyle( xdisplay, gc, FillSolid );
98 XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
99
100 unsigned char *data = image.GetData();
101 int index = 0;
102
103 unsigned char red = colour.Red();
104 unsigned char green = colour.Green();
105 unsigned char blue = colour.Blue();
106
107 XVisualInfo vinfo_template;
108 XVisualInfo *vi;
109
110 vinfo_template.visual = xvisual;
111 vinfo_template.visualid = XVisualIDFromVisual( xvisual );
112 vinfo_template.depth = bpp;
113 int nitem = 0;
114
115 vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
116 wxASSERT_MSG( vi, wxT("No visual info") );
117
118 if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
119 if (bpp == 15)
120 {
121 red = red & 0xf8;
122 green = green & 0xf8;
123 blue = blue & 0xf8;
124 } else
125 if (bpp == 16)
126 {
127 red = red & 0xf8;
128 green = green & 0xfc;
129 blue = blue & 0xf8;
130 } else
131 if (bpp == 12)
132 {
133 red = red & 0xf0;
134 green = green & 0xf0;
135 blue = blue & 0xf0;
136 }
137
138 XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
139
140 for (int j = 0; j < image.GetHeight(); j++)
141 {
142 int start_x = -1;
143 int i;
144 for (i = 0; i < image.GetWidth(); i++)
145 {
146 if ((data[index] == red) &&
147 (data[index+1] == green) &&
148 (data[index+2] == blue))
149 {
150 if (start_x == -1)
151 start_x = i;
152 }
153 else
154 {
155 if (start_x != -1)
156 {
157 XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
158 start_x = -1;
159 }
160 }
161 index += 3;
162 }
163 if (start_x != -1)
164 XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
165 }
166
167 XFreeGC( xdisplay, gc );
168
169 return TRUE;
170}
171
172bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
173{
174 unsigned char r,g,b;
175 wxPalette *pal = bitmap.GetPalette();
176
177 wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") );
178
179 pal->GetRGB(paletteIndex, &r, &g, &b);
180
181 return Create(bitmap, wxColour(r, g, b));
182}
183
184bool wxMask::Create( const wxBitmap& bitmap )
185{
186 if (m_bitmap)
187 {
188 XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
189 m_bitmap = NULL;
190 }
191
192 if (!bitmap.Ok()) return FALSE;
193
194 wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
195
196 m_display = bitmap.GetDisplay();
197
198 int xscreen = DefaultScreen( (Display*) m_display );
199 Window xroot = RootWindow( (Display*) m_display, xscreen );
200
201 m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
202
203 if (!m_bitmap) return FALSE;
204
205 GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
206
207 XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
208 gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
209
210 XFreeGC( (Display*) m_display, gc );
211
212 return TRUE;
213}
214
215//-----------------------------------------------------------------------------
216// wxBitmap
217//-----------------------------------------------------------------------------
218
219class wxBitmapRefData: public wxObjectRefData
220{
221public:
222 wxBitmapRefData();
223 ~wxBitmapRefData();
224
225 WXPixmap m_pixmap;
226 WXPixmap m_bitmap;
227 WXDisplay *m_display;
228 wxMask *m_mask;
229 int m_width;
230 int m_height;
231 int m_bpp;
232 wxPalette *m_palette;
233};
234
235wxBitmapRefData::wxBitmapRefData()
236{
237 m_pixmap = NULL;
238 m_bitmap = NULL;
239 m_display = NULL;
240 m_mask = (wxMask *) NULL;
241 m_width = 0;
242 m_height = 0;
243 m_bpp = 0;
244 m_palette = (wxPalette *) NULL;
245}
246
247wxBitmapRefData::~wxBitmapRefData()
248{
249 if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
250 if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
251 if (m_mask) delete m_mask;
252 if (m_palette) delete m_palette;
253}
254
255//-----------------------------------------------------------------------------
256
257#define M_BMPDATA ((wxBitmapRefData *)m_refData)
258
259IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
260
261wxBitmap::wxBitmap()
262{
263}
264
265wxBitmap::wxBitmap( int width, int height, int depth )
266{
267 Create( width, height, depth );
268}
269
270bool wxBitmap::Create( int width, int height, int depth )
271{
272 UnRef();
273
274 wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
275
276 m_refData = new wxBitmapRefData();
277
278 M_BMPDATA->m_display = wxGlobalDisplay();
279
280 wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
281
282 int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
283 Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
284
285 int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
286 if (depth == -1) depth = bpp;
287
288 wxCHECK_MSG( (depth == bpp) ||
289 (depth == 1), FALSE, wxT("invalid bitmap depth") )
290
291 M_BMPDATA->m_mask = (wxMask *) NULL;
292 M_BMPDATA->m_width = width;
293 M_BMPDATA->m_height = height;
294 if (depth == 1)
295 {
296 M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
297
298 wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
299
300 M_BMPDATA->m_bpp = 1;
301 }
302 else
303 {
304 M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
305
306 wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
307
308 M_BMPDATA->m_bpp = depth;
309 }
310
311 return Ok();
312}
313
314bool wxBitmap::CreateFromXpm( const char **bits )
315{
316#if wxUSE_XPM
317#if wxHAVE_LIB_XPM
318 UnRef();
319
320 wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
321
322 m_refData = new wxBitmapRefData();
323
324 M_BMPDATA->m_display = wxGlobalDisplay();
325
326 Display *xdisplay = (Display*) M_BMPDATA->m_display;
327
328 int xscreen = DefaultScreen( xdisplay );
329 Window xroot = RootWindow( xdisplay, xscreen );
330
331 int bpp = DefaultDepth( xdisplay, xscreen );
332
333 XpmAttributes xpmAttr;
334 xpmAttr.valuemask = XpmReturnInfos; // nothing yet, but get infos back
335
336 Pixmap pixmap;
337 Pixmap mask = 0;
338
339 int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits, &pixmap, &mask, &xpmAttr );
340
341 if (ErrorStatus == XpmSuccess)
342 {
343 M_BMPDATA->m_width = xpmAttr.width;
344 M_BMPDATA->m_height = xpmAttr.height;
345
346 M_BMPDATA->m_bpp = bpp; // mono as well?
347
348#if __WXDEBUG__
349 unsigned int depthRet;
350 int xRet, yRet;
351 unsigned int widthRet, heightRet, borderWidthRet;
352 XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
353 &widthRet, &heightRet, &borderWidthRet, &depthRet);
354
355 wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") )
356#endif
357
358 XpmFreeAttributes(&xpmAttr);
359
360 M_BMPDATA->m_pixmap = (WXPixmap) pixmap;
361
362 if (mask)
363 {
364 M_BMPDATA->m_mask = new wxMask;
365 M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
366 M_BMPDATA->m_mask->SetDisplay( xdisplay );
367 }
368 return TRUE;
369 }
370 else
371 {
372 UnRef();
373
374 return FALSE;
375 }
376#else
377 wxXPMDecoder decoder;
378 wxImage image(decoder.ReadData(bits));
379 if (image.Ok())
380 return CreateFromImage(image);
381 else
382 return FALSE;
383#endif
384#endif
385 return FALSE;
386}
387
388bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
389{
390 UnRef();
391
392 wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
393 wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
394
395 m_refData = new wxBitmapRefData();
396
397 M_BMPDATA->m_display = wxGlobalDisplay();
398
399 Display *xdisplay = (Display*) M_BMPDATA->m_display;
400
401 int xscreen = DefaultScreen( xdisplay );
402 Window xroot = RootWindow( xdisplay, xscreen );
403 Visual* xvisual = DefaultVisual( xdisplay, xscreen );
404
405 int bpp = DefaultDepth( xdisplay, xscreen );
406
407 int width = image.GetWidth();
408 int height = image.GetHeight();
409 M_BMPDATA->m_width = width;
410 M_BMPDATA->m_height = height;
411
412 if (depth != 1) depth = bpp;
413 M_BMPDATA->m_bpp = depth;
414
415 if (depth == 1)
416 {
417 wxFAIL_MSG( "mono images later" );
418 }
419 else
420 {
421 // Create image
422
423 XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
424 data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
425
426 if (data_image->data == NULL)
427 {
428 wxLogError( wxT("Out of memory.") ); // TODO clean
429 return FALSE;
430 }
431
432 M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
433
434 // Create mask
435
436 XImage *mask_image = (XImage*) NULL;
437 if (image.HasMask())
438 {
439 mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
440 mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
441
442 if (mask_image->data == NULL)
443 {
444 wxLogError( wxT("Out of memory.") ); // TODO clean
445 return FALSE;
446 }
447
448 wxMask *mask = new wxMask();
449 mask->SetDisplay( xdisplay );
450 mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
451
452 SetMask( mask );
453 }
454
455 // Retrieve info
456
457 XVisualInfo vinfo_template;
458 XVisualInfo *vi;
459
460 vinfo_template.visual = xvisual;
461 vinfo_template.visualid = XVisualIDFromVisual( xvisual );
462 vinfo_template.depth = bpp;
463 int nitem = 0;
464
465 vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
466 wxASSERT_MSG( vi, wxT("No visual info") );
467
468 if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
469 if (bpp < 8) bpp = 8;
470
471 // Render
472
473 enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
474 byte_order b_o = RGB;
475
476 if (bpp > 8)
477 {
478 if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask)) b_o = RGB;
479 else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask)) b_o = RBG;
480 else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask)) b_o = BRG;
481 else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
482 else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask)) b_o = GRB;
483 else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask)) b_o = GBR;
484 }
485
486 XFree( vi );
487
488 int r_mask = image.GetMaskRed();
489 int g_mask = image.GetMaskGreen();
490 int b_mask = image.GetMaskBlue();
491
492 unsigned char* data = image.GetData();
493 wxASSERT_MSG( data, "No image data" );
494
495 bool hasMask = image.HasMask();
496
497 int index = 0;
498 for (int y = 0; y < height; y++)
499 {
500 for (int x = 0; x < width; x++)
501 {
502 int r = data[index];
503 index++;
504 int g = data[index];
505 index++;
506 int b = data[index];
507 index++;
508
509 if (hasMask)
510 {
511 if ((r == r_mask) && (b == b_mask) && (g == g_mask))
512 XPutPixel( mask_image, x, y, 0 );
513 else
514 XPutPixel( mask_image, x, y, 1 );
515 }
516
517 switch (bpp)
518 {
519 case 8:
520 {
521 int pixel = 0;
522#if 0
523 if (wxTheApp->m_colorCube)
524 {
525 pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
526 }
527 else
528 {
529 GdkColormap *cmap = gtk_widget_get_default_colormap();
530 GdkColor *colors = cmap->colors;
531 int max = 3 * (65536);
532
533 for (int i = 0; i < cmap->size; i++)
534 {
535 int rdiff = (r << 8) - colors[i].red;
536 int gdiff = (g << 8) - colors[i].green;
537 int bdiff = (b << 8) - colors[i].blue;
538 int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
539 if (sum < max) { pixel = i; max = sum; }
540 }
541 }
542#endif
543 XPutPixel( data_image, x, y, pixel );
544 break;
545 }
546 case 12: // SGI only
547 {
548 int pixel = 0;
549 switch (b_o)
550 {
551 case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
552 case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
553 case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
554 case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
555 case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
556 case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
557 }
558 XPutPixel( data_image, x, y, pixel );
559 break;
560 }
561 case 15:
562 {
563 int pixel = 0;
564 switch (b_o)
565 {
566 case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
567 case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
568 case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
569 case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
570 case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
571 case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
572 }
573 XPutPixel( data_image, x, y, pixel );
574 break;
575 }
576 case 16:
577 {
578 // I actually don't know if for 16-bit displays, it is alway the green
579 // component or the second component which has 6 bits.
580 int pixel = 0;
581 switch (b_o)
582 {
583 case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
584 case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
585 case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
586 case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
587 case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
588 case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
589 }
590 XPutPixel( data_image, x, y, pixel );
591 break;
592 }
593 case 32:
594 case 24:
595 {
596 int pixel = 0;
597 switch (b_o)
598 {
599 case RGB: pixel = (r << 16) | (g << 8) | b; break;
600 case RBG: pixel = (r << 16) | (b << 8) | g; break;
601 case BRG: pixel = (b << 16) | (r << 8) | g; break;
602 case BGR: pixel = (b << 16) | (g << 8) | r; break;
603 case GRB: pixel = (g << 16) | (r << 8) | b; break;
604 case GBR: pixel = (g << 16) | (b << 8) | r; break;
605 }
606 XPutPixel( data_image, x, y, pixel );
607 }
608 default: break;
609 }
610 } // for
611 } // for
612
613 // Blit picture
614
615 GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
616 XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
617
618 XDestroyImage( data_image );
619 XFreeGC( xdisplay, gc );
620
621 // Blit mask
622
623 if (image.HasMask())
624 {
625 GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
626 XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, data_image, 0, 0, 0, 0, width, height );
627
628 XDestroyImage( mask_image );
629 XFreeGC( xdisplay, gc );
630 }
631 }
632
633 return TRUE;
634}
635
636static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
637{
638 *shift = 0;
639 *prec = 0;
640
641 while (!(mask & 0x1))
642 {
643 (*shift)++;
644 mask >>= 1;
645 }
646
647 while (mask & 0x1)
648 {
649 (*prec)++;
650 mask >>= 1;
651 }
652}
653
654wxImage wxBitmap::ConvertToImage() const
655{
656 wxImage image;
657
658 wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
659
660 Display *xdisplay = (Display*) M_BMPDATA->m_display;
661 wxASSERT_MSG( xdisplay, wxT("No display") );
662
663 int xscreen = DefaultScreen( xdisplay );
664 Visual* xvisual = DefaultVisual( xdisplay, xscreen );
665
666 int bpp = DefaultDepth( xdisplay, xscreen );
667
668 XImage *x_image = NULL;
669 if (GetPixmap())
670 {
671 x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
672 0, 0,
673 GetWidth(), GetHeight(),
674 AllPlanes, ZPixmap );
675 } else
676 if (GetBitmap())
677 {
678 x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
679 0, 0,
680 GetWidth(), GetHeight(),
681 AllPlanes, ZPixmap );
682 } else
683 {
684 wxFAIL_MSG( wxT("Ill-formed bitmap") );
685 }
686
687 wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
688
689 image.Create( GetWidth(), GetHeight() );
690 char unsigned *data = image.GetData();
691
692 if (!data)
693 {
694 XDestroyImage( x_image );
695 wxFAIL_MSG( wxT("couldn't create image") );
696 return wxNullImage;
697 }
698
699 XImage *x_image_mask = NULL;
700 if (GetMask())
701 {
702 x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
703 0, 0,
704 GetWidth(), GetHeight(),
705 AllPlanes, ZPixmap );
706
707 image.SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable
708 }
709
710 int red_shift_right = 0;
711 int green_shift_right = 0;
712 int blue_shift_right = 0;
713 int red_shift_left = 0;
714 int green_shift_left = 0;
715 int blue_shift_left = 0;
716 bool use_shift = FALSE;
717
718 if (GetPixmap())
719 {
720 // Retrieve info
721
722 XVisualInfo vinfo_template;
723 XVisualInfo *vi;
724
725 vinfo_template.visual = xvisual;
726 vinfo_template.visualid = XVisualIDFromVisual( xvisual );
727 vinfo_template.depth = bpp;
728 int nitem = 0;
729
730 vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
731 wxASSERT_MSG( vi, wxT("No visual info") );
732
733 int red_prec,green_prec,blue_prec;
734 int red_shift,green_shift,blue_shift;
735 wxCalcPrecAndShift( vi->red_mask, &red_shift, &red_prec );
736 wxCalcPrecAndShift( vi->green_mask, &green_shift, &green_prec );
737 wxCalcPrecAndShift( vi->blue_mask, &blue_shift, &blue_prec );
738 if (bpp == 16) bpp = red_prec + green_prec + blue_prec;
739
740 red_shift_right = red_shift;
741 red_shift_left = 8-red_prec;
742 green_shift_right = green_shift;
743 green_shift_left = 8-green_prec;
744 blue_shift_right = blue_shift;
745 blue_shift_left = 8-blue_prec;
746
747#if 0
748 use_shift = (vi->visual->c_class == TrueColor) || (vi->visual->c_class == DirectColor);
749#else
750 use_shift = TRUE;
751#endif
752
753 XFree( vi );
754 }
755 if (GetBitmap())
756 {
757 bpp = 1;
758 }
759
760
761// GdkColormap *cmap = gtk_widget_get_default_colormap();
762
763 long pos = 0;
764 for (int j = 0; j < GetHeight(); j++)
765 {
766 for (int i = 0; i < GetWidth(); i++)
767 {
768 unsigned long pixel = XGetPixel( x_image, i, j );
769 if (bpp == 1)
770 {
771 if (pixel == 0)
772 {
773 data[pos] = 0;
774 data[pos+1] = 0;
775 data[pos+2] = 0;
776 }
777 else
778 {
779 data[pos] = 255;
780 data[pos+1] = 255;
781 data[pos+2] = 255;
782 }
783 }
784 else if (use_shift)
785 {
786 data[pos] = (pixel >> red_shift_right) << red_shift_left;
787 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
788 data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left;
789 }
790#if 0
791 else if (cmap->colors)
792 {
793 data[pos] = cmap->colors[pixel].red >> 8;
794 data[pos+1] = cmap->colors[pixel].green >> 8;
795 data[pos+2] = cmap->colors[pixel].blue >> 8;
796 }
797#endif
798 else
799 {
800 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
801 }
802
803 if (x_image_mask)
804 {
805 int mask_pixel = XGetPixel( x_image_mask, i, j );
806 if (mask_pixel == 0)
807 {
808 data[pos] = 16;
809 data[pos+1] = 16;
810 data[pos+2] = 16;
811 }
812 }
813
814 pos += 3;
815 }
816 }
817
818 XDestroyImage( x_image );
819 if (x_image_mask) XDestroyImage( x_image_mask );
820
821 return image;
822}
823
824wxBitmap::wxBitmap( const wxBitmap& bmp )
825{
826 Ref( bmp );
827}
828
829wxBitmap::wxBitmap( const wxString &filename, int type )
830{
831 LoadFile( filename, type );
832}
833
834wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth) )
835{
836 m_refData = new wxBitmapRefData();
837
838 M_BMPDATA->m_display = wxGlobalDisplay();
839
840 Display *xdisplay = (Display*) M_BMPDATA->m_display;
841
842 int xscreen = DefaultScreen( xdisplay );
843 Window xroot = RootWindow( xdisplay, xscreen );
844
845 M_BMPDATA->m_mask = (wxMask *) NULL;
846 M_BMPDATA->m_bitmap = (WXPixmap) XCreateBitmapFromData( xdisplay, xroot, (char *) bits, width, height );
847 M_BMPDATA->m_width = width;
848 M_BMPDATA->m_height = height;
849 M_BMPDATA->m_bpp = 1;
850
851 wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
852}
853
854wxBitmap::~wxBitmap()
855{
856}
857
858wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
859{
860 if ( m_refData != bmp.m_refData )
861 Ref( bmp );
862
863 return *this;
864}
865
866bool wxBitmap::operator == ( const wxBitmap& bmp ) const
867{
868 return m_refData == bmp.m_refData;
869}
870
871bool wxBitmap::operator != ( const wxBitmap& bmp ) const
872{
873 return m_refData != bmp.m_refData;
874}
875
876bool wxBitmap::Ok() const
877{
878 return (m_refData != NULL);
879}
880
881int wxBitmap::GetHeight() const
882{
883 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
884
885 return M_BMPDATA->m_height;
886}
887
888int wxBitmap::GetWidth() const
889{
890 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
891
892 return M_BMPDATA->m_width;
893}
894
895int wxBitmap::GetDepth() const
896{
897 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
898
899 return M_BMPDATA->m_bpp;
900}
901
902wxMask *wxBitmap::GetMask() const
903{
904 wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
905
906 return M_BMPDATA->m_mask;
907}
908
909void wxBitmap::SetMask( wxMask *mask )
910{
911 wxCHECK_RET( Ok(), wxT("invalid bitmap") );
912
913 if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
914
915 M_BMPDATA->m_mask = mask;
916}
917
918bool wxBitmap::CopyFromIcon(const wxIcon& icon)
919{
920 *this = icon;
921 return TRUE;
922}
923
924wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
925{
926 wxCHECK_MSG( Ok() &&
927 (rect.x >= 0) && (rect.y >= 0) &&
928 (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
929 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
930
931 wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
932 wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
933
934
935 wxFAIL_MSG( "wxBitmap::GetSubBitmap not yet implemented" );
936
937#if 0
938 if (ret.GetPixmap())
939 {
940 GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
941 gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
942 gdk_gc_destroy( gc );
943 }
944 else
945 {
946 GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
947 gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
948 gdk_gc_destroy( gc );
949 }
950
951 if (GetMask())
952 {
953 wxMask *mask = new wxMask;
954 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
955
956 GdkGC *gc = gdk_gc_new( mask->m_bitmap );
957 gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
958 gdk_gc_destroy( gc );
959
960 ret.SetMask( mask );
961 }
962#endif
963
964 return ret;
965}
966
967bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
968{
969 wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
970
971 // Try to save the bitmap via wxImage handlers:
972 {
973 wxImage image( *this );
974 if (image.Ok()) return image.SaveFile( name, type );
975 }
976
977 return FALSE;
978}
979
980bool wxBitmap::LoadFile( const wxString &name, int type )
981{
982 UnRef();
983
984 if (!wxFileExists(name)) return FALSE;
985
986
987 if (type == wxBITMAP_TYPE_XPM)
988 {
989#if wxUSE_XPM
990#if wxHAVE_LIB_XPM
991 m_refData = new wxBitmapRefData();
992
993 M_BMPDATA->m_display = wxGlobalDisplay();
994
995 Display *xdisplay = (Display*) M_BMPDATA->m_display;
996
997 int xscreen = DefaultScreen( xdisplay );
998 Window xroot = RootWindow( xdisplay, xscreen );
999
1000 int bpp = DefaultDepth( xdisplay, xscreen );
1001
1002 XpmAttributes xpmAttr;
1003 xpmAttr.valuemask = XpmReturnInfos; // nothing yet, but get infos back
1004
1005 Pixmap pixmap;
1006 Pixmap mask = 0;
1007
1008 int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot, (char*) name.c_str(), &pixmap, &mask, &xpmAttr);
1009
1010 if (ErrorStatus == XpmSuccess)
1011 {
1012 M_BMPDATA->m_width = xpmAttr.width;
1013 M_BMPDATA->m_height = xpmAttr.height;
1014
1015 M_BMPDATA->m_bpp = bpp; // mono as well?
1016
1017 XpmFreeAttributes(&xpmAttr);
1018
1019 M_BMPDATA->m_bitmap = (WXPixmap) pixmap;
1020
1021 if (mask)
1022 {
1023 M_BMPDATA->m_mask = new wxMask;
1024 M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
1025 M_BMPDATA->m_mask->SetDisplay( xdisplay );
1026 }
1027 }
1028 else
1029 {
1030 UnRef();
1031
1032 return FALSE;
1033 }
1034#else
1035#if wxUSE_STREAMS
1036 wxXPMDecoder decoder;
1037 wxFileInputStream stream(name);
1038 if (stream.Ok())
1039 {
1040 wxImage image(decoder.Read(stream));
1041 if (image.Ok())
1042 return CreateFromImage(image);
1043 else
1044 return FALSE;
1045 }
1046 else
1047 return FALSE;
1048#else
1049 return FALSE;
1050#endif
1051 // wxUSE_STREAMS
1052#endif
1053 // wxHAVE_LIB_XPM
1054#endif
1055 // wxUSE_XPM
1056 return FALSE;
1057 }
1058 else // try if wxImage can load it
1059 {
1060 wxImage image;
1061 if (!image.LoadFile( name, type )) return FALSE;
1062 if (image.Ok()) *this = image.ConvertToBitmap();
1063 else return FALSE;
1064 }
1065
1066 return TRUE;
1067}
1068
1069wxPalette *wxBitmap::GetPalette() const
1070{
1071 if (!Ok()) return (wxPalette *) NULL;
1072
1073 return M_BMPDATA->m_palette;
1074}
1075
1076void wxBitmap::SetHeight( int height )
1077{
1078 if (!m_refData) m_refData = new wxBitmapRefData();
1079
1080 M_BMPDATA->m_height = height;
1081}
1082
1083void wxBitmap::SetWidth( int width )
1084{
1085 if (!m_refData) m_refData = new wxBitmapRefData();
1086
1087 M_BMPDATA->m_width = width;
1088}
1089
1090void wxBitmap::SetDepth( int depth )
1091{
1092 if (!m_refData) m_refData = new wxBitmapRefData();
1093
1094 M_BMPDATA->m_bpp = depth;
1095}
1096
1097void wxBitmap::SetPixmap( WXPixmap pixmap )
1098{
1099 if (!m_refData) m_refData = new wxBitmapRefData();
1100
1101 M_BMPDATA->m_pixmap = pixmap;
1102}
1103
1104void wxBitmap::SetBitmap( WXPixmap bitmap )
1105{
1106 if (!m_refData) m_refData = new wxBitmapRefData();
1107
1108 M_BMPDATA->m_bitmap = bitmap;
1109}
1110
1111WXPixmap wxBitmap::GetPixmap() const
1112{
1113 wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1114
1115 return M_BMPDATA->m_pixmap;
1116}
1117
1118WXPixmap wxBitmap::GetBitmap() const
1119{
1120 wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1121
1122 return M_BMPDATA->m_bitmap;
1123}
1124
1125WXDisplay *wxBitmap::GetDisplay() const
1126{
1127 wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1128
1129 return M_BMPDATA->m_display;
1130}
1131
wxWidgets (Impactor)