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)
57 m_bitmap = (GdkBitmap *) NULL;
60 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
62 m_bitmap = (GdkBitmap *) NULL;
63 Create( bitmap, colour );
67 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
69 m_bitmap = (GdkBitmap *) NULL;
70 Create( bitmap, paletteIndex );
72 #endif // wxUSE_PALETTE
74 wxMask::wxMask( const wxBitmap& bitmap )
76 m_bitmap = (GdkBitmap *) NULL;
83 gdk_bitmap_unref( m_bitmap );
86 bool wxMask::Create( const wxBitmap& bitmap,
87 const wxColour& colour )
91 gdk_bitmap_unref( m_bitmap );
92 m_bitmap = (GdkBitmap*) NULL;
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 );
198 m_bitmap = (GdkBitmap*) NULL;
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
223 //-----------------------------------------------------------------------------
225 //-----------------------------------------------------------------------------
227 class wxBitmapRefData : public wxGDIRefData
231 wxBitmapRefData(const wxBitmapRefData& data);
232 bool Create(int width, int height, int bpp);
233 virtual ~wxBitmapRefData();
235 virtual bool IsOk() const { return m_pixmap || m_bitmap; }
244 wxPalette *m_palette;
245 #endif // wxUSE_PALETTE
248 wxBitmapRefData::wxBitmapRefData()
250 m_pixmap = (GdkPixmap *) NULL;
251 m_bitmap = (GdkBitmap *) NULL;
252 m_mask = (wxMask *) NULL;
257 m_palette = (wxPalette *) NULL;
258 #endif // wxUSE_PALETTE
261 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
263 Create(data.m_width, data.m_height, data.m_bpp);
265 m_mask = data.m_mask ? new wxMask(*data.m_mask) : NULL;
268 wxASSERT_MSG( !data.m_palette,
269 _T("copying bitmaps palette not implemented") );
270 #endif // wxUSE_PALETTE
273 // copy the bitmap data by simply drawing the source bitmap on this one
279 else if ( data.m_bitmap )
283 else // invalid bitmap?
288 GdkGC *gc = gdk_gc_new(*dst);
291 gdk_wx_draw_bitmap(m_bitmap, gc, data.m_bitmap, 0, 0, 0, 0, -1, -1);
293 else // colour pixmap
295 gdk_draw_pixmap(m_pixmap, gc, data.m_pixmap, 0, 0, 0, 0, -1, -1);
301 bool wxBitmapRefData::Create(int width, int height, int bpp)
312 // to understand how this compiles you should know that GdkPixmap and
313 // GdkBitmap are one and the same type in GTK+ 1
317 const GdkVisual * const visual = wxTheApp->GetGdkVisual();
319 wxCHECK_MSG( (bpp == -1) || (bpp == visual->depth) || (bpp == 32), false,
320 wxT("invalid bitmap depth") );
322 m_bpp = visual->depth;
333 *ppix = gdk_pixmap_new( wxGetRootWindow()->window, width, height, m_bpp );
335 return *ppix != NULL;
338 wxBitmapRefData::~wxBitmapRefData()
341 gdk_pixmap_unref( m_pixmap );
343 gdk_bitmap_unref( m_bitmap );
347 #endif // wxUSE_PALETTE
350 //-----------------------------------------------------------------------------
352 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
354 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
360 wxBitmap::wxBitmap( int width, int height, int depth )
362 Create( width, height, depth );
365 wxGDIRefData *wxBitmap::CreateGDIRefData() const
367 return new wxBitmapRefData;
370 wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const
372 return new wxBitmapRefData(*wx_static_cast(const wxBitmapRefData *, data));
375 bool wxBitmap::Create( int width, int height, int depth )
379 if ( width <= 0 || height <= 0 )
384 m_refData = new wxBitmapRefData();
385 return M_BMPDATA->Create(width, height, depth);
388 wxBitmap::wxBitmap(const char* const* bits)
390 wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data"));
392 GdkVisual *visual = wxTheApp->GetGdkVisual();
394 m_refData = new wxBitmapRefData();
396 GdkBitmap *mask = (GdkBitmap*) NULL;
398 M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxGetRootWindow()->window, &mask, NULL, (gchar **) bits );
400 wxCHECK2_MSG(M_BMPDATA->m_pixmap, return, wxT("couldn't create pixmap"));
404 M_BMPDATA->m_mask = new wxMask();
405 M_BMPDATA->m_mask->m_bitmap = mask;
408 gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
410 M_BMPDATA->m_bpp = visual->depth; // Can we get a different depth from create_from_xpm_d() ?
413 wxBitmap wxBitmap::Rescale( int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy )
415 wxCHECK_MSG( Ok(), wxNullBitmap, wxT("invalid bitmap") );
417 if (newy==M_BMPDATA->m_width && newy==M_BMPDATA->m_height)
420 int width = wxMax(newx, 1);
421 int height = wxMax(newy, 1);
422 width = wxMin(width, clipwidth);
423 height = wxMin(height, clipheight);
427 GdkImage *img = (GdkImage*) NULL;
429 img = gdk_image_get( GetPixmap(), 0, 0, GetWidth(), GetHeight() );
430 else if (GetBitmap())
431 img = gdk_image_get( GetBitmap(), 0, 0, GetWidth(), GetHeight() );
433 wxFAIL_MSG( wxT("Ill-formed bitmap") );
435 wxCHECK_MSG( img, wxNullBitmap, wxT("couldn't create image") );
441 GdkPixmap *dstpix = NULL;
444 GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
446 visual = wxTheApp->GetGdkVisual();
449 bmp = wxBitmap(width,height,bpp);
450 dstpix = bmp.GetPixmap();
451 gc = gdk_gc_new( dstpix );
455 long dstbyteperline = 0;
460 dstbyteperline = width/8*M_BMPDATA->m_bpp;
461 if (width*M_BMPDATA->m_bpp % 8 != 0)
463 dst = (char*) malloc(dstbyteperline*height);
466 // be careful to use the right scaling factor
467 float scx = (float)M_BMPDATA->m_width/(float)newx;
468 float scy = (float)M_BMPDATA->m_height/(float)newy;
469 // prepare accel-tables
470 int *tablex = (int *)calloc(width,sizeof(int));
471 int *tabley = (int *)calloc(height,sizeof(int));
473 // accel table filled with clipped values
474 for (int x = 0; x < width; x++)
475 tablex[x] = (int) (scx * (x+clipx));
476 for (int y = 0; y < height; y++)
477 tabley[y] = (int) (scy * (y+clipy));
479 // Main rescaling routine starts here
480 for (int h = 0; h < height; h++)
484 guint32 old_pixval = 0;
486 for (int w = 0; w < width; w++)
494 pixval = gdk_image_get_pixel( img, x, tabley[h] );
504 char shift = bit << (w % 8);
510 dst[h*dstbyteperline+w/8] = outbyte;
518 gdk_gc_set_foreground( gc, &col );
519 gdk_draw_point( dstpix, gc, w, h);
523 // do not forget the last byte
524 if ((bpp == 1) && (width % 8 != 0))
525 dst[h*dstbyteperline+width/8] = outbyte;
528 gdk_image_destroy( img );
529 if (gc) gdk_gc_unref( gc );
533 bmp = wxBitmap( (const char *)dst, width, height, 1 );
539 dstbyteperline = width/8;
542 dst = (char*) malloc(dstbyteperline*height);
543 img = gdk_image_get( GetMask()->GetBitmap(), 0, 0, GetWidth(), GetHeight() );
545 for (int h = 0; h < height; h++)
549 guint32 old_pixval = 0;
551 for (int w = 0; w < width; w++)
559 pixval = gdk_image_get_pixel( img, x, tabley[h] );
567 char shift = bit << (w % 8);
573 dst[h*dstbyteperline+w/8] = outbyte;
578 // do not forget the last byte
580 dst[h*dstbyteperline+width/8] = outbyte;
582 wxMask* mask = new wxMask;
583 mask->m_bitmap = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) dst, width, height );
587 gdk_image_destroy( img );
596 bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
600 wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
601 wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") );
603 if (image.GetWidth() <= 0 || image.GetHeight() <= 0)
606 m_refData = new wxBitmapRefData();
610 return CreateFromImageAsBitmap(image);
614 return CreateFromImageAsPixmap(image);
618 // conversion to mono bitmap:
619 bool wxBitmap::CreateFromImageAsBitmap(const wxImage& img)
621 // convert alpha channel to mask, if it is present:
623 image.ConvertAlphaToMask();
625 int width = image.GetWidth();
626 int height = image.GetHeight();
631 SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
635 GdkVisual *visual = wxTheApp->GetGdkVisual();
637 // Create picture image
639 unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
641 GdkImage *data_image =
642 gdk_image_new_bitmap( visual, data_data, width, height );
646 GdkImage *mask_image = (GdkImage*) NULL;
650 unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
652 mask_image = gdk_image_new_bitmap( visual, mask_data, width, height );
654 wxMask *mask = new wxMask();
655 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
660 int r_mask = image.GetMaskRed();
661 int g_mask = image.GetMaskGreen();
662 int b_mask = image.GetMaskBlue();
664 unsigned char* data = image.GetData();
667 for (int y = 0; y < height; y++)
669 for (int x = 0; x < width; x++)
680 if ((r == r_mask) && (b == b_mask) && (g == g_mask))
681 gdk_image_put_pixel( mask_image, x, y, 1 );
683 gdk_image_put_pixel( mask_image, x, y, 0 );
686 if ((r == 255) && (b == 255) && (g == 255))
687 gdk_image_put_pixel( data_image, x, y, 1 );
689 gdk_image_put_pixel( data_image, x, y, 0 );
696 GdkGC *data_gc = gdk_gc_new( GetBitmap() );
698 gdk_draw_image( GetBitmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
700 gdk_image_destroy( data_image );
701 gdk_gc_unref( data_gc );
707 GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() );
709 gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
711 gdk_image_destroy( mask_image );
712 gdk_gc_unref( mask_gc );
718 // conversion to colour bitmap:
719 bool wxBitmap::CreateFromImageAsPixmap(const wxImage& img)
721 // convert alpha channel to mask, if it is present:
723 image.ConvertAlphaToMask();
725 int width = image.GetWidth();
726 int height = image.GetHeight();
731 SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
733 GdkVisual *visual = wxTheApp->GetGdkVisual();
735 int bpp = visual->depth;
739 if ((bpp == 16) && (visual->red_mask != 0xf800))
744 // We handle 8-bit bitmaps ourselves using the colour cube, 12-bit
745 // visuals are not supported by GDK so we do these ourselves, too.
746 // 15-bit and 16-bit should actually work and 24-bit certainly does.
748 if (!image.HasMask() && (bpp > 16))
750 if (!image.HasMask() && (bpp > 12))
753 static bool s_hasInitialized = false;
755 if (!s_hasInitialized)
758 s_hasInitialized = true;
761 GdkGC *gc = gdk_gc_new( GetPixmap() );
763 gdk_draw_rgb_image( GetPixmap(),
775 // Create picture image
777 GdkImage *data_image =
778 gdk_image_new( GDK_IMAGE_FASTEST, visual, width, height );
782 GdkImage *mask_image = (GdkImage*) NULL;
786 unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
788 mask_image = gdk_image_new_bitmap( visual, mask_data, width, height );
790 wxMask *mask = new wxMask();
791 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
798 enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
799 byte_order b_o = RGB;
803 if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB;
804 else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RBG;
805 else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG;
806 else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR;
807 else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB;
808 else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR;
811 int r_mask = image.GetMaskRed();
812 int g_mask = image.GetMaskGreen();
813 int b_mask = image.GetMaskBlue();
815 unsigned char* data = image.GetData();
818 for (int y = 0; y < height; y++)
820 for (int x = 0; x < width; x++)
831 if ((r == r_mask) && (b == b_mask) && (g == g_mask))
832 gdk_image_put_pixel( mask_image, x, y, 1 );
834 gdk_image_put_pixel( mask_image, x, y, 0 );
842 if (wxTheApp->m_colorCube)
844 pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
848 GdkColormap *cmap = gtk_widget_get_default_colormap();
849 GdkColor *colors = cmap->colors;
850 int max = 3 * (65536);
852 for (int i = 0; i < cmap->size; i++)
854 int rdiff = (r << 8) - colors[i].red;
855 int gdiff = (g << 8) - colors[i].green;
856 int bdiff = (b << 8) - colors[i].blue;
857 int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
858 if (sum < max) { pixel = i; max = sum; }
862 gdk_image_put_pixel( data_image, x, y, pixel );
871 case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
872 case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
873 case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
874 case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
875 case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
876 case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
878 gdk_image_put_pixel( data_image, x, y, pixel );
886 case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
887 case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
888 case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
889 case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
890 case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
891 case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
893 gdk_image_put_pixel( data_image, x, y, pixel );
898 // I actually don't know if for 16-bit displays, it is alway the green
899 // component or the second component which has 6 bits.
903 case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
904 case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
905 case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
906 case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
907 case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
908 case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
910 gdk_image_put_pixel( data_image, x, y, pixel );
919 case RGB: pixel = (r << 16) | (g << 8) | b; break;
920 case RBG: pixel = (r << 16) | (b << 8) | g; break;
921 case BRG: pixel = (b << 16) | (r << 8) | g; break;
922 case BGR: pixel = (b << 16) | (g << 8) | r; break;
923 case GRB: pixel = (g << 16) | (r << 8) | b; break;
924 case GBR: pixel = (g << 16) | (b << 8) | r; break;
926 gdk_image_put_pixel( data_image, x, y, pixel );
936 GdkGC *data_gc = gdk_gc_new( GetPixmap() );
938 gdk_draw_image( GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
940 gdk_image_destroy( data_image );
941 gdk_gc_unref( data_gc );
947 GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() );
949 gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
951 gdk_image_destroy( mask_image );
952 gdk_gc_unref( mask_gc );
958 wxImage wxBitmap::ConvertToImage() const
962 wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
964 image.Create(GetWidth(), GetHeight());
965 unsigned char *data = image.GetData();
969 wxFAIL_MSG( wxT("couldn't create image") );
973 // the colour used as transparent one in wxImage and the one it is
974 // replaced with when it really occurs in the bitmap
975 static const int MASK_RED = 1;
976 static const int MASK_GREEN = 2;
977 static const int MASK_BLUE = 3;
978 static const int MASK_BLUE_REPLACEMENT = 2;
980 GdkImage *gdk_image = (GdkImage*) NULL;
984 gdk_image = gdk_image_get( GetPixmap(),
986 GetWidth(), GetHeight() );
988 else if (GetBitmap())
990 gdk_image = gdk_image_get( GetBitmap(),
992 GetWidth(), GetHeight() );
996 wxFAIL_MSG( wxT("Ill-formed bitmap") );
999 wxCHECK_MSG( gdk_image, wxNullImage, wxT("couldn't create image") );
1001 GdkImage *gdk_image_mask = (GdkImage*) NULL;
1004 gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),
1006 GetWidth(), GetHeight() );
1008 image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE );
1012 int red_shift_right = 0;
1013 int green_shift_right = 0;
1014 int blue_shift_right = 0;
1015 int red_shift_left = 0;
1016 int green_shift_left = 0;
1017 int blue_shift_left = 0;
1018 bool use_shift = false;
1022 GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
1024 visual = wxTheApp->GetGdkVisual();
1026 bpp = visual->depth;
1028 bpp = visual->red_prec + visual->green_prec + visual->blue_prec;
1029 red_shift_right = visual->red_shift;
1030 red_shift_left = 8-visual->red_prec;
1031 green_shift_right = visual->green_shift;
1032 green_shift_left = 8-visual->green_prec;
1033 blue_shift_right = visual->blue_shift;
1034 blue_shift_left = 8-visual->blue_prec;
1036 use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR);
1044 GdkColormap *cmap = gtk_widget_get_default_colormap();
1047 for (int j = 0; j < GetHeight(); j++)
1049 for (int i = 0; i < GetWidth(); i++)
1051 wxUint32 pixel = gdk_image_get_pixel( gdk_image, i, j );
1069 data[pos] = (pixel >> red_shift_right) << red_shift_left;
1070 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
1071 data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left;
1073 else if (cmap->colors)
1075 data[pos] = cmap->colors[pixel].red >> 8;
1076 data[pos+1] = cmap->colors[pixel].green >> 8;
1077 data[pos+2] = cmap->colors[pixel].blue >> 8;
1081 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
1086 int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
1087 if (mask_pixel == 0)
1089 data[pos] = MASK_RED;
1090 data[pos+1] = MASK_GREEN;
1091 data[pos+2] = MASK_BLUE;
1093 else if ( data[pos] == MASK_RED &&
1094 data[pos+1] == MASK_GREEN &&
1095 data[pos+2] == MASK_BLUE )
1097 data[pos+2] = MASK_BLUE_REPLACEMENT;
1105 gdk_image_destroy( gdk_image );
1106 if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
1111 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
1113 LoadFile( filename, type );
1116 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
1118 if ( width > 0 && height > 0 )
1120 m_refData = new wxBitmapRefData();
1122 M_BMPDATA->m_mask = (wxMask *) NULL;
1123 M_BMPDATA->m_bitmap = gdk_bitmap_create_from_data
1125 wxGetRootWindow()->window,
1130 M_BMPDATA->m_width = width;
1131 M_BMPDATA->m_height = height;
1132 M_BMPDATA->m_bpp = 1;
1134 wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
1138 wxBitmap::~wxBitmap()
1142 int wxBitmap::GetHeight() const
1144 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1146 return M_BMPDATA->m_height;
1149 int wxBitmap::GetWidth() const
1151 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1153 return M_BMPDATA->m_width;
1156 int wxBitmap::GetDepth() const
1158 wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1160 return M_BMPDATA->m_bpp;
1163 wxMask *wxBitmap::GetMask() const
1165 wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
1167 return M_BMPDATA->m_mask;
1170 void wxBitmap::SetMask( wxMask *mask )
1172 wxCHECK_RET( Ok(), wxT("invalid bitmap") );
1175 if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
1177 M_BMPDATA->m_mask = mask;
1180 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
1186 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
1188 wxCHECK_MSG( Ok() &&
1189 (rect.x >= 0) && (rect.y >= 0) &&
1190 (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
1191 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
1193 wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
1194 wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
1196 if (ret.GetPixmap())
1198 GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
1199 gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1200 gdk_gc_destroy( gc );
1204 GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
1206 col.pixel = 0xFFFFFF;
1207 gdk_gc_set_foreground( gc, &col );
1209 gdk_gc_set_background( gc, &col );
1210 gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1211 gdk_gc_destroy( gc );
1216 wxMask *mask = new wxMask;
1217 mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
1219 GdkGC *gc = gdk_gc_new( mask->m_bitmap );
1221 col.pixel = 0xFFFFFF;
1222 gdk_gc_set_foreground( gc, &col );
1224 gdk_gc_set_background( gc, &col );
1225 gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, rect.x, rect.y, 0, 0, rect.width, rect.height );
1226 gdk_gc_destroy( gc );
1228 ret.SetMask( mask );
1234 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const
1236 wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1238 // Try to save the bitmap via wxImage handlers:
1240 wxImage image = ConvertToImage();
1241 if (image.Ok()) return image.SaveFile( name, type );
1247 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1251 if (!wxFileExists(name))
1254 GdkVisual *visual = wxTheApp->GetGdkVisual();
1256 if (type == wxBITMAP_TYPE_XPM)
1258 m_refData = new wxBitmapRefData();
1260 GdkBitmap *mask = (GdkBitmap*) NULL;
1262 M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm
1264 wxGetRootWindow()->window,
1272 M_BMPDATA->m_mask = new wxMask();
1273 M_BMPDATA->m_mask->m_bitmap = mask;
1276 gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
1278 M_BMPDATA->m_bpp = visual->depth;
1280 else // try if wxImage can load it
1283 if ( !image.LoadFile( name, type ) || !image.Ok() )
1286 *this = wxBitmap(image);
1293 wxPalette *wxBitmap::GetPalette() const
1296 return (wxPalette *) NULL;
1298 return M_BMPDATA->m_palette;
1301 void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette))
1305 #endif // wxUSE_PALETTE
1307 void wxBitmap::SetHeight( int height )
1310 M_BMPDATA->m_height = height;
1313 void wxBitmap::SetWidth( int width )
1316 M_BMPDATA->m_width = width;
1319 void wxBitmap::SetDepth( int depth )
1322 M_BMPDATA->m_bpp = depth;
1325 void wxBitmap::SetPixmap( GdkPixmap *pixmap )
1328 m_refData = new wxBitmapRefData();
1330 M_BMPDATA->m_pixmap = pixmap;
1333 void wxBitmap::SetBitmap( GdkPixmap *bitmap )
1336 m_refData = new wxBitmapRefData();
1338 M_BMPDATA->m_bitmap = bitmap;
1341 GdkPixmap *wxBitmap::GetPixmap() const
1343 wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
1345 return M_BMPDATA->m_pixmap;
1348 bool wxBitmap::HasPixmap() const
1350 wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1352 return M_BMPDATA->m_pixmap != NULL;
1355 GdkBitmap *wxBitmap::GetBitmap() const
1357 wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );
1359 return M_BMPDATA->m_bitmap;
1362 void *wxBitmap::GetRawData(wxPixelDataBase& WXUNUSED(data), int WXUNUSED(bpp))
1367 void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data))
1371 bool wxBitmap::HasAlpha() const
1376 /* static */ void wxBitmap::InitStandardHandlers()
1378 // TODO: Insert handler based on GdkPixbufs handler later