1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk1/bitmap.cpp
4 // Author: Robert Roebling
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
13 #include "wx/bitmap.h"
17 #include "wx/dcmemory.h"
18 #include "wx/palette.h"
24 #include "wx/filefn.h"
30 #include <gdk/gdkrgb.h>
33 void gdk_wx_draw_bitmap (GdkDrawable *drawable,
43 //-----------------------------------------------------------------------------
45 //-----------------------------------------------------------------------------
47 extern GtkWidget *wxGetRootWindow();
49 //-----------------------------------------------------------------------------
51 //-----------------------------------------------------------------------------
53 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
60 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
63 Create( bitmap, colour );
67 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
70 Create( bitmap, paletteIndex );
72 #endif // wxUSE_PALETTE
74 wxMask::wxMask( const wxBitmap& bitmap )
83 gdk_bitmap_unref( m_bitmap );
86 bool wxMask::Create( const wxBitmap& bitmap,
87 const wxColour& colour )
91 gdk_bitmap_unref( m_bitmap );
95 wxImage image = bitmap.ConvertToImage();
96 if (!image.Ok()) return false;
98 m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, image.GetWidth(), image.GetHeight(), 1 );
99 GdkGC *gc = gdk_gc_new( m_bitmap );
106 gdk_gc_set_foreground( gc, &color );
107 gdk_gc_set_fill( gc, GDK_SOLID );
108 gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() );
110 unsigned char *data = image.GetData();
113 unsigned char red = colour.Red();
114 unsigned char green = colour.Green();
115 unsigned char blue = colour.Blue();
117 GdkVisual *visual = wxTheApp->GetGdkVisual();
119 int bpp = visual->depth;
120 if ((bpp == 16) && (visual->red_mask != 0xf800))
125 green = green & 0xf8;
131 green = green & 0xfc;
137 green = green & 0xf0;
145 gdk_gc_set_foreground( gc, &color );
147 for (int j = 0; j < image.GetHeight(); j++)
151 for (i = 0; i < image.GetWidth(); i++)
153 if ((data[index] == red) &&
154 (data[index+1] == green) &&
155 (data[index+2] == blue))
164 gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j );
171 gdk_draw_line( m_bitmap, gc, start_x, j, i, j );
180 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
183 wxPalette *pal = bitmap.GetPalette();
185 wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
187 pal->GetRGB(paletteIndex, &r, &g, &b);
189 return Create(bitmap, wxColour(r, g, b));
191 #endif // wxUSE_PALETTE
193 bool wxMask::Create( const wxBitmap& bitmap )
197 gdk_bitmap_unref( m_bitmap );
201 if (!bitmap.Ok()) return false;
203 wxCHECK_MSG( bitmap.GetBitmap(), false, wxT("Cannot create mask from colour bitmap") );
205 m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
207 if (!m_bitmap) return false;
209 GdkGC *gc = gdk_gc_new( m_bitmap );
211 gdk_wx_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() );
218 GdkBitmap *wxMask::GetBitmap() const
224 //-----------------------------------------------------------------------------
226 //-----------------------------------------------------------------------------
228 class wxBitmapRefData : public wxGDIRefData
232 wxBitmapRefData(const wxBitmapRefData& data);
233 bool Create(int width, int height, int bpp);
234 virtual ~wxBitmapRefData();
236 virtual bool IsOk() const { return m_pixmap || m_bitmap; }
245 wxPalette *m_palette;
246 #endif // wxUSE_PALETTE
249 wxBitmapRefData::wxBitmapRefData()
259 #endif // wxUSE_PALETTE
262 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
264 Create(data.m_width, data.m_height, data.m_bpp);
266 m_mask = data.m_mask ? new wxMask(*data.m_mask) : NULL;
269 wxASSERT_MSG( !data.m_palette,
270 wxT("copying bitmaps palette not implemented") );
271 #endif // wxUSE_PALETTE
274 // copy the bitmap data by simply drawing the source bitmap on this one
280 else if ( data.m_bitmap )
284 else // invalid bitmap?
289 GdkGC *gc = gdk_gc_new(*dst);
292 gdk_wx_draw_bitmap(m_bitmap, gc, data.m_bitmap, 0, 0, 0, 0, -1, -1);
294 else // colour pixmap
296 gdk_draw_pixmap(m_pixmap, gc, data.m_pixmap, 0, 0, 0, 0, -1, -1);
302 bool wxBitmapRefData::Create(int width, int height, int bpp)
313 // to understand how this compiles you should know that GdkPixmap and
314 // GdkBitmap are one and the same type in GTK+ 1
318 const GdkVisual * const visual = wxTheApp->GetGdkVisual();
320 wxCHECK_MSG( (bpp == -1) || (bpp == visual->depth) || (bpp == 32), false,
321 wxT("invalid bitmap depth") );
323 m_bpp = visual->depth;
334 *ppix = gdk_pixmap_new( wxGetRootWindow()->window, width, height, m_bpp );
336 return *ppix != NULL;
339 wxBitmapRefData::~wxBitmapRefData()
342 gdk_pixmap_unref( m_pixmap );
344 gdk_bitmap_unref( m_bitmap );
348 #endif // wxUSE_PALETTE
352 //-----------------------------------------------------------------------------
354 //-----------------------------------------------------------------------------
356 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
358 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
360 wxGDIRefData *wxBitmap::CreateGDIRefData() const
362 return new wxBitmapRefData;
365 wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const
367 return new wxBitmapRefData(*static_cast<const wxBitmapRefData *>(data));
370 bool wxBitmap::Create( int width, int height, int depth )
374 if ( width <= 0 || height <= 0 )
379 m_refData = new wxBitmapRefData();
380 return M_BMPDATA->Create(width, height, depth);
383 wxBitmap::wxBitmap(const char* const* bits)
385 wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data"));
387 GdkVisual *visual = wxTheApp->GetGdkVisual();
389 m_refData = new wxBitmapRefData();
391 GdkBitmap *mask = NULL;
393 M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxGetRootWindow()->window, &mask, NULL, (gchar **) bits );
395 wxCHECK2_MSG(M_BMPDATA->m_pixmap, return, wxT("couldn't create pixmap"));
399 M_BMPDATA->m_mask = new wxMask();
400 M_BMPDATA->m_mask->m_bitmap = mask;
403 gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
405 M_BMPDATA->m_bpp = visual->depth; // Can we get a different depth from create_from_xpm_d() ?
408 wxBitmap wxBitmap::Rescale( int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy )
410 wxCHECK_MSG( Ok(), wxNullBitmap, wxT("invalid bitmap") );
412 if (newy==M_BMPDATA->m_width && newy==M_BMPDATA->m_height)
415 int width = wxMax(newx, 1);
416 int height = wxMax(newy, 1);
417 width = wxMin(width, clipwidth);
418 height = wxMin(height, clipheight);
422 GdkImage *img = NULL;
424 img = gdk_image_get( GetPixmap(), 0, 0, GetWidth(), GetHeight() );
425 else if (GetBitmap())
426 img = gdk_image_get( GetBitmap(), 0, 0, GetWidth(), GetHeight() );
428 wxFAIL_MSG( wxT("Ill-formed bitmap") );
430 wxCHECK_MSG( img, wxNullBitmap, wxT("couldn't create image") );
436 GdkPixmap *dstpix = NULL;
439 GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
441 visual = wxTheApp->GetGdkVisual();
444 bmp = wxBitmap(width,height,bpp);
445 dstpix = bmp.GetPixmap();
446 gc = gdk_gc_new( dstpix );
450 long dstbyteperline = 0;
455 dstbyteperline = width/8*M_BMPDATA->m_bpp;
456 if (width*M_BMPDATA->m_bpp % 8 != 0)
458 dst = (char*) malloc(dstbyteperline*height);
461 // be careful to use the right scaling factor
462 float scx = (float)M_BMPDATA->m_width/(float)newx;
463 float scy = (float)M_BMPDATA->m_height/(float)newy;
464 // prepare accel-tables
465 int *tablex = (int *)calloc(width,sizeof(int));
466 int *tabley = (int *)calloc(height,sizeof(int));
468 // accel table filled with clipped values
469 for (int x = 0; x < width; x++)
470 tablex[x] = (int) (scx * (x+clipx));
471 for (int y = 0; y < height; y++)
472 tabley[y] = (int) (scy * (y+clipy));
474 // Main rescaling routine starts here
475 for (int h = 0; h < height; h++)
479 guint32 old_pixval = 0;
481 for (int w = 0; w < width; w++)
489 pixval = gdk_image_get_pixel( img, x, tabley[h] );
499 char shift = bit << (w % 8);
505 dst[h*dstbyteperline+w/8] = outbyte;
513 gdk_gc_set_foreground( gc, &col );
514 gdk_draw_point( dstpix, gc, w, h);
518 // do not forget the last byte
519 if ((bpp == 1) && (width % 8 != 0))
520 dst[h*dstbyteperline+width/8] = outbyte;
523 gdk_image_destroy( img );
524 if (gc) gdk_gc_unref( gc );
528 bmp = wxBitmap( (const char *)dst, width, height, 1 );
534 dstbyteperline = width/8;
537 dst = (char*) malloc(dstbyteperline*height);
538 img = gdk_image_get( GetMask()->GetBitmap(), 0, 0, GetWidth(), GetHeight() );
540 for (int h = 0; h < height; h++)
544 guint32 old_pixval = 0;
546 for (int w = 0; w < width; w++)
554 pixval = gdk_image_get_pixel( img, x, tabley[h] );
562 char shift = bit << (w % 8);
568 dst[h*dstbyteperline+w/8] = outbyte;
573 // do not forget the last byte
575 dst[h*dstbyteperline+width/8] = outbyte;
577 wxMask* mask = new wxMask;
578 mask->m_bitmap = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) dst, width, height );
582 gdk_image_destroy( img );
591 bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
595 wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
596 wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") );
598 if (image.GetWidth() <= 0 || image.GetHeight() <= 0)
601 m_refData = new wxBitmapRefData();
605 return CreateFromImageAsBitmap(image);
609 return CreateFromImageAsPixmap(image);
613 // conversion to mono bitmap:
614 bool wxBitmap::CreateFromImageAsBitmap(const wxImage& img)
616 // convert alpha channel to mask, if it is present:
618 image.ConvertAlphaToMask();
620 int width = image.GetWidth();
621 int height = image.GetHeight();
626 SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
630 GdkVisual *visual = wxTheApp->GetGdkVisual();
632 // Create picture image
634 unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
636 GdkImage *data_image =
637 gdk_image_new_bitmap( visual, data_data, width, height );
641 GdkImage *mask_image = NULL;
645 unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
647 mask_image = gdk_image_new_bitmap( visual, mask_data, width, height );
649 wxMask *mask = new wxMask();
650 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
655 int r_mask = image.GetMaskRed();
656 int g_mask = image.GetMaskGreen();
657 int b_mask = image.GetMaskBlue();
659 unsigned char* data = image.GetData();
662 for (int y = 0; y < height; y++)
664 for (int x = 0; x < width; x++)
675 if ((r == r_mask) && (b == b_mask) && (g == g_mask))
676 gdk_image_put_pixel( mask_image, x, y, 1 );
678 gdk_image_put_pixel( mask_image, x, y, 0 );
681 if ((r == 255) && (b == 255) && (g == 255))
682 gdk_image_put_pixel( data_image, x, y, 1 );
684 gdk_image_put_pixel( data_image, x, y, 0 );
691 GdkGC *data_gc = gdk_gc_new( GetBitmap() );
693 gdk_draw_image( GetBitmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
695 gdk_image_destroy( data_image );
696 gdk_gc_unref( data_gc );
702 GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() );
704 gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
706 gdk_image_destroy( mask_image );
707 gdk_gc_unref( mask_gc );
713 // conversion to colour bitmap:
714 bool wxBitmap::CreateFromImageAsPixmap(const wxImage& img)
716 // convert alpha channel to mask, if it is present:
718 image.ConvertAlphaToMask();
720 int width = image.GetWidth();
721 int height = image.GetHeight();
726 SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
728 GdkVisual *visual = wxTheApp->GetGdkVisual();
730 int bpp = visual->depth;
734 if ((bpp == 16) && (visual->red_mask != 0xf800))
739 // We handle 8-bit bitmaps ourselves using the colour cube, 12-bit
740 // visuals are not supported by GDK so we do these ourselves, too.
741 // 15-bit and 16-bit should actually work and 24-bit certainly does.
743 if (!image.HasMask() && (bpp > 16))
745 if (!image.HasMask() && (bpp > 12))
748 static bool s_hasInitialized = false;
750 if (!s_hasInitialized)
753 s_hasInitialized = true;
756 GdkGC *gc = gdk_gc_new( GetPixmap() );
758 gdk_draw_rgb_image( GetPixmap(),
770 // Create picture image
772 GdkImage *data_image =
773 gdk_image_new( GDK_IMAGE_FASTEST, visual, width, height );
777 GdkImage *mask_image = NULL;
781 unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
783 mask_image = gdk_image_new_bitmap( visual, mask_data, width, height );
785 wxMask *mask = new wxMask();
786 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
793 enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
794 byte_order b_o = RGB;
798 if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB;
799 else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RBG;
800 else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG;
801 else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR;
802 else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB;
803 else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR;
806 int r_mask = image.GetMaskRed();
807 int g_mask = image.GetMaskGreen();
808 int b_mask = image.GetMaskBlue();
810 unsigned char* data = image.GetData();
813 for (int y = 0; y < height; y++)
815 for (int x = 0; x < width; x++)
826 if ((r == r_mask) && (b == b_mask) && (g == g_mask))
827 gdk_image_put_pixel( mask_image, x, y, 1 );
829 gdk_image_put_pixel( mask_image, x, y, 0 );
837 if (wxTheApp->m_colorCube)
839 pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
843 GdkColormap *cmap = gtk_widget_get_default_colormap();
844 GdkColor *colors = cmap->colors;
845 int max = 3 * (65536);
847 for (int i = 0; i < cmap->size; i++)
849 int rdiff = (r << 8) - colors[i].red;
850 int gdiff = (g << 8) - colors[i].green;
851 int bdiff = (b << 8) - colors[i].blue;
852 int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
853 if (sum < max) { pixel = i; max = sum; }
857 gdk_image_put_pixel( data_image, x, y, pixel );
866 case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
867 case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
868 case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
869 case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
870 case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
871 case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
873 gdk_image_put_pixel( data_image, x, y, pixel );
881 case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
882 case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
883 case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
884 case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
885 case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
886 case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
888 gdk_image_put_pixel( data_image, x, y, pixel );
893 // I actually don't know if for 16-bit displays, it is alway the green
894 // component or the second component which has 6 bits.
898 case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
899 case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
900 case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
901 case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
902 case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
903 case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
905 gdk_image_put_pixel( data_image, x, y, pixel );
914 case RGB: pixel = (r << 16) | (g << 8) | b; break;
915 case RBG: pixel = (r << 16) | (b << 8) | g; break;
916 case BRG: pixel = (b << 16) | (r << 8) | g; break;
917 case BGR: pixel = (b << 16) | (g << 8) | r; break;
918 case GRB: pixel = (g << 16) | (r << 8) | b; break;
919 case GBR: pixel = (g << 16) | (b << 8) | r; break;
921 gdk_image_put_pixel( data_image, x, y, pixel );
931 GdkGC *data_gc = gdk_gc_new( GetPixmap() );
933 gdk_draw_image( GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
935 gdk_image_destroy( data_image );
936 gdk_gc_unref( data_gc );
942 GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() );
944 gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
946 gdk_image_destroy( mask_image );
947 gdk_gc_unref( mask_gc );
953 wxImage wxBitmap::ConvertToImage() const
957 wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
959 image.Create(GetWidth(), GetHeight());
960 unsigned char *data = image.GetData();
964 wxFAIL_MSG( wxT("couldn't create image") );
968 // the colour used as transparent one in wxImage and the one it is
969 // replaced with when it really occurs in the bitmap
970 static const int MASK_RED = 1;
971 static const int MASK_GREEN = 2;
972 static const int MASK_BLUE = 3;
973 static const int MASK_BLUE_REPLACEMENT = 2;
975 GdkImage *gdk_image = NULL;
979 gdk_image = gdk_image_get( GetPixmap(),
981 GetWidth(), GetHeight() );
983 else if (GetBitmap())
985 gdk_image = gdk_image_get( GetBitmap(),
987 GetWidth(), GetHeight() );
991 wxFAIL_MSG( wxT("Ill-formed bitmap") );
994 wxCHECK_MSG( gdk_image, wxNullImage, wxT("couldn't create image") );
996 GdkImage *gdk_image_mask = NULL;
999 gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),
1001 GetWidth(), GetHeight() );
1003 image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE );
1007 int red_shift_right = 0;
1008 int green_shift_right = 0;
1009 int blue_shift_right = 0;
1010 int red_shift_left = 0;
1011 int green_shift_left = 0;
1012 int blue_shift_left = 0;
1013 bool use_shift = false;
1017 GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
1019 visual = wxTheApp->GetGdkVisual();
1021 bpp = visual->depth;
1023 bpp = visual->red_prec + visual->green_prec + visual->blue_prec;
1024 red_shift_right = visual->red_shift;
1025 red_shift_left = 8-visual->red_prec;
1026 green_shift_right = visual->green_shift;
1027 green_shift_left = 8-visual->green_prec;
1028 blue_shift_right = visual->blue_shift;
1029 blue_shift_left = 8-visual->blue_prec;
1031 use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR);
1039 GdkColormap *cmap = gtk_widget_get_default_colormap();
1042 for (int j = 0; j < GetHeight(); j++)
1044 for (int i = 0; i < GetWidth(); i++)
1046 wxUint32 pixel = gdk_image_get_pixel( gdk_image, i, j );
1064 data[pos] = (pixel >> red_shift_right) << red_shift_left;
1065 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
1066 data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left;
1068 else if (cmap->colors)
1070 data[pos] = cmap->colors[pixel].red >> 8;
1071 data[pos+1] = cmap->colors[pixel].green >> 8;
1072 data[pos+2] = cmap->colors[pixel].blue >> 8;
1076 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
1081 int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
1082 if (mask_pixel == 0)
1084 data[pos] = MASK_RED;
1085 data[pos+1] = MASK_GREEN;
1086 data[pos+2] = MASK_BLUE;
1088 else if ( data[pos] == MASK_RED &&
1089 data[pos+1] == MASK_GREEN &&
1090 data[pos+2] == MASK_BLUE )
1092 data[pos+2] = MASK_BLUE_REPLACEMENT;
1100 gdk_image_destroy( gdk_image );
1101 if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
1106 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
1108 LoadFile( filename, type );
1111 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
1113 if ( width > 0 && height > 0 )
1115 m_refData = new wxBitmapRefData();
1117 M_BMPDATA->m_mask = NULL;
1118 M_BMPDATA->m_bitmap = gdk_bitmap_create_from_data
1120 wxGetRootWindow()->window,
1125 M_BMPDATA->m_width = width;
1126 M_BMPDATA->m_height = height;
1127 M_BMPDATA->m_bpp = 1;
1129 wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
1133 wxBitmap::~wxBitmap()
1137 int wxBitmap::GetHeight() const
1139 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1141 return M_BMPDATA->m_height;
1144 int wxBitmap::GetWidth() const
1146 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1148 return M_BMPDATA->m_width;
1151 int wxBitmap::GetDepth() const
1153 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1155 return M_BMPDATA->m_bpp;
1158 wxMask *wxBitmap::GetMask() const
1160 wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
1162 return M_BMPDATA->m_mask;
1165 void wxBitmap::SetMask( wxMask *mask )
1167 wxCHECK_RET( Ok(), wxT("invalid bitmap") );
1170 if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
1172 M_BMPDATA->m_mask = mask;
1175 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
1181 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
1183 wxCHECK_MSG( Ok() &&
1184 (rect.x >= 0) && (rect.y >= 0) &&
1185 (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
1186 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
1188 wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
1189 wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
1191 if (ret.GetPixmap())
1193 GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
1194 gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1195 gdk_gc_destroy( gc );
1199 GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
1201 col.pixel = 0xFFFFFF;
1202 gdk_gc_set_foreground( gc, &col );
1204 gdk_gc_set_background( gc, &col );
1205 gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1206 gdk_gc_destroy( gc );
1211 wxMask *mask = new wxMask;
1212 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
1214 GdkGC *gc = gdk_gc_new( mask->m_bitmap );
1216 col.pixel = 0xFFFFFF;
1217 gdk_gc_set_foreground( gc, &col );
1219 gdk_gc_set_background( gc, &col );
1220 gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, rect.x, rect.y, 0, 0, rect.width, rect.height );
1221 gdk_gc_destroy( gc );
1223 ret.SetMask( mask );
1229 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const
1231 wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1233 // Try to save the bitmap via wxImage handlers:
1235 wxImage image = ConvertToImage();
1236 if (image.Ok()) return image.SaveFile( name, type );
1242 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1246 if (!wxFileExists(name))
1249 GdkVisual *visual = wxTheApp->GetGdkVisual();
1251 if (type == wxBITMAP_TYPE_XPM)
1253 m_refData = new wxBitmapRefData();
1255 GdkBitmap *mask = NULL;
1257 M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm
1259 wxGetRootWindow()->window,
1267 M_BMPDATA->m_mask = new wxMask();
1268 M_BMPDATA->m_mask->m_bitmap = mask;
1271 gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
1273 M_BMPDATA->m_bpp = visual->depth;
1275 else // try if wxImage can load it
1278 if ( !image.LoadFile( name, type ) || !image.Ok() )
1281 *this = wxBitmap(image);
1288 wxPalette *wxBitmap::GetPalette() const
1293 return M_BMPDATA->m_palette;
1296 void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette))
1300 #endif // wxUSE_PALETTE
1302 void wxBitmap::SetHeight( int height )
1305 M_BMPDATA->m_height = height;
1308 void wxBitmap::SetWidth( int width )
1311 M_BMPDATA->m_width = width;
1314 void wxBitmap::SetDepth( int depth )
1317 M_BMPDATA->m_bpp = depth;
1320 void wxBitmap::SetPixmap( GdkPixmap *pixmap )
1323 m_refData = new wxBitmapRefData();
1325 M_BMPDATA->m_pixmap = pixmap;
1328 void wxBitmap::SetBitmap( GdkPixmap *bitmap )
1331 m_refData = new wxBitmapRefData();
1333 M_BMPDATA->m_bitmap = bitmap;
1336 GdkPixmap *wxBitmap::GetPixmap() const
1338 wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
1340 return M_BMPDATA->m_pixmap;
1343 bool wxBitmap::HasPixmap() const
1345 wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1347 return M_BMPDATA->m_pixmap != NULL;
1350 GdkBitmap *wxBitmap::GetBitmap() const
1352 wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
1354 return M_BMPDATA->m_bitmap;
1357 void *wxBitmap::GetRawData(wxPixelDataBase& WXUNUSED(data), int WXUNUSED(bpp))
1362 void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data))
1366 bool wxBitmap::HasAlpha() const
1371 /* static */ void wxBitmap::InitStandardHandlers()
1373 // TODO: Insert handler based on GdkPixbufs handler later