// Name: bitmap.cpp
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#endif
#include "wx/bitmap.h"
+#include "wx/icon.h"
+#include "wx/filefn.h"
#include "gdk/gdkprivate.h"
-
-#ifdef USE_GDK_IMLIB
-#include "../gdk_imlib/gdk_imlib.h"
-#endif
+#include "gdk/gdkx.h"
//-----------------------------------------------------------------------------
// wxMask
wxMask::wxMask(void)
{
- m_bitmap = NULL;
-};
+ m_bitmap = (GdkBitmap *) NULL;
+}
wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour) )
{
-};
+}
wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex) )
{
-};
+}
wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap) )
{
-};
+}
wxMask::~wxMask(void)
{
-#ifdef USE_GDK_IMLIB
- // do not delete the mask, gdk_imlib does it for you
-#else
- if (m_bitmap) gdk_bitmap_unref( m_bitmap );
-#endif
-};
+ if (m_bitmap) gdk_bitmap_unref( m_bitmap );
+}
GdkBitmap *wxMask::GetBitmap(void) const
{
- return m_bitmap;
-};
+ return m_bitmap;
+}
//-----------------------------------------------------------------------------
// wxBitmap
//-----------------------------------------------------------------------------
-// CMB 20/5/98: added m_bitmap for GdkBitmaps
class wxBitmapRefData: public wxObjectRefData
{
- public:
+public:
+ wxBitmapRefData(void);
+ ~wxBitmapRefData(void);
- wxBitmapRefData(void);
- ~wxBitmapRefData(void);
-
- GdkPixmap *m_pixmap;
- GdkBitmap *m_bitmap;
- wxMask *m_mask;
- int m_width;
- int m_height;
- int m_bpp;
-#ifdef USE_GDK_IMLIB
- GdkImlibImage *m_image;
-#endif
- wxPalette *m_palette;
+ GdkPixmap *m_pixmap;
+ GdkBitmap *m_bitmap;
+ wxMask *m_mask;
+ int m_width;
+ int m_height;
+ int m_bpp;
+ wxPalette *m_palette;
};
wxBitmapRefData::wxBitmapRefData(void)
{
- m_pixmap = NULL;
- m_bitmap = NULL;
- m_mask = NULL;
- m_width = 0;
- m_height = 0;
- m_bpp = 0;
- m_palette = NULL;
-};
+ m_pixmap = (GdkPixmap *) NULL;
+ m_bitmap = (GdkBitmap *) NULL;
+ m_mask = (wxMask *) NULL;
+ m_width = 0;
+ m_height = 0;
+ m_bpp = 0;
+ m_palette = (wxPalette *) NULL;
+}
wxBitmapRefData::~wxBitmapRefData(void)
{
-#ifdef USE_GDK_IMLIB
- if (m_pixmap) gdk_imlib_free_pixmap( m_pixmap );
- if (m_image) gdk_imlib_destroy_image( m_image );
-#else
- if (m_pixmap) gdk_pixmap_unref( m_pixmap );
-#endif
- if (m_bitmap) gdk_bitmap_unref( m_bitmap );
- if (m_mask) delete m_mask;
- if (m_palette) delete m_palette;
-};
+ if (m_pixmap) gdk_pixmap_unref( m_pixmap );
+ if (m_bitmap) gdk_bitmap_unref( m_bitmap );
+ if (m_mask) delete m_mask;
+ if (m_palette) delete m_palette;
+}
//-----------------------------------------------------------------------------
wxBitmap::wxBitmap(void)
{
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
-};
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+}
wxBitmap::wxBitmap( int width, int height, int depth )
{
- m_refData = new wxBitmapRefData();
- M_BMPDATA->m_mask = NULL;
- M_BMPDATA->m_pixmap =
- gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, width, height, depth );
- gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
- M_BMPDATA->m_bpp = depth;
+ wxCHECK_RET( (width > 0) && (height > 0), "invalid bitmap size" )
+ wxCHECK_RET( (depth > 0) || (depth == -1), "invalid bitmap depth" )
+
+ m_refData = new wxBitmapRefData();
+
+ GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
+
+ M_BMPDATA->m_mask = (wxMask *) NULL;
+ M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth );
+ M_BMPDATA->m_width = width;
+ M_BMPDATA->m_height = height;
+ M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
-};
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+}
wxBitmap::wxBitmap( char **bits )
{
- m_refData = new wxBitmapRefData();
-
-#ifndef USE_GDK_IMLIB
+ wxCHECK_RET( bits != NULL, "invalid bitmap data" )
+
+ m_refData = new wxBitmapRefData();
- GdkBitmap *mask = NULL;
+ GdkBitmap *mask = (GdkBitmap*) NULL;
+ GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
- M_BMPDATA->m_pixmap =
- gdk_pixmap_create_from_xpm_d( (GdkWindow*) &gdk_root_parent, &mask, NULL, (gchar **) bits );
+ M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
- if (mask)
- {
- M_BMPDATA->m_mask = new wxMask();
- M_BMPDATA->m_mask->m_bitmap = mask;
- };
+ if (mask)
+ {
+ M_BMPDATA->m_mask = new wxMask();
+ M_BMPDATA->m_mask->m_bitmap = mask;
+ }
-#else
-
- M_BMPDATA->m_image = gdk_imlib_create_image_from_xpm_data( bits );
- Render();
+ gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
-#endif
-
- gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
- M_BMPDATA->m_bpp = 24; // ?
-
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
-};
+ M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ?
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+}
wxBitmap::wxBitmap( const wxBitmap& bmp )
{
- Ref( bmp );
+ Ref( bmp );
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
-};
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+}
wxBitmap::wxBitmap( const wxBitmap* bmp )
{
- if (bmp) Ref( *bmp );
+ if (bmp) Ref( *bmp );
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
-};
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+}
wxBitmap::wxBitmap( const wxString &filename, int type )
{
- LoadFile( filename, type );
-};
+ LoadFile( filename, type );
+
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+}
-// CMB 15/5/98: add constructor for xbm bitmaps
wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
{
- m_refData = new wxBitmapRefData();
+ m_refData = new wxBitmapRefData();
- M_BMPDATA->m_mask = NULL;
- M_BMPDATA->m_bitmap =
- gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height );
- gdk_window_get_size( M_BMPDATA->m_bitmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
- M_BMPDATA->m_bpp = 1;
+ M_BMPDATA->m_mask = (wxMask *) NULL;
+ M_BMPDATA->m_bitmap =
+ gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height );
+ M_BMPDATA->m_width = width;
+ M_BMPDATA->m_height = height;
+ M_BMPDATA->m_bpp = 1;
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}
wxBitmap::~wxBitmap(void)
{
- if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
-};
+ if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
+}
wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
{
- if (*this == bmp) return (*this);
- Ref( bmp );
- return *this;
-};
+ if (*this == bmp) return (*this);
+ Ref( bmp );
+ return *this;
+}
bool wxBitmap::operator == ( const wxBitmap& bmp )
{
- return m_refData == bmp.m_refData;
-};
+ return m_refData == bmp.m_refData;
+}
bool wxBitmap::operator != ( const wxBitmap& bmp )
{
- return m_refData != bmp.m_refData;
-};
+ return m_refData != bmp.m_refData;
+}
bool wxBitmap::Ok(void) const
{
- return m_refData != NULL;
-};
+ return (m_refData != NULL);
+}
int wxBitmap::GetHeight(void) const
{
- if (!Ok()) return 0;
- return M_BMPDATA->m_height;
-};
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return -1;
+ }
+
+ return M_BMPDATA->m_height;
+}
int wxBitmap::GetWidth(void) const
{
- if (!Ok()) return 0;
- return M_BMPDATA->m_width;
-};
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return -1;
+ }
+
+ return M_BMPDATA->m_width;
+}
int wxBitmap::GetDepth(void) const
{
- if (!Ok()) return 0;
- return M_BMPDATA->m_bpp;
-};
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return -1;
+ }
+
+ return M_BMPDATA->m_bpp;
+}
void wxBitmap::SetHeight( int height )
{
- if (!Ok()) return;
- M_BMPDATA->m_height = height;
-};
+ if (!Ok()) return;
+
+ wxFAIL_MSG( "wxBitmap::SetHeight not implemented" );
+
+ M_BMPDATA->m_height = height;
+}
void wxBitmap::SetWidth( int width )
{
- if (!Ok()) return;
- M_BMPDATA->m_width = width;
-};
+ if (!Ok()) return;
+
+ wxFAIL_MSG( "wxBitmap::SetWidth not implemented" );
+
+ M_BMPDATA->m_width = width;
+}
void wxBitmap::SetDepth( int depth )
{
- if (!Ok()) return;
- M_BMPDATA->m_bpp = depth;
-};
+ if (!Ok()) return;
+
+ wxFAIL_MSG( "wxBitmap::SetDepth not implemented" );
+
+ M_BMPDATA->m_bpp = depth;
+}
wxMask *wxBitmap::GetMask(void) const
{
- if (!Ok()) return NULL;
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return (wxMask *) NULL;
+ }
- return M_BMPDATA->m_mask;
-};
+ return M_BMPDATA->m_mask;
+}
void wxBitmap::SetMask( wxMask *mask )
{
- if (!Ok()) return;
-
- if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
- M_BMPDATA->m_mask = mask;
-};
-
-void wxBitmap::Resize( int height, int width )
-{
- if (!Ok()) return;
-
- return;
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return;
+ }
-#ifdef USE_GDK_IMLIB
+ if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
- if (M_BMPDATA->m_bitmap) return; // not supported for bitmaps
-
- if (!M_BMPDATA->m_image) RecreateImage();
-
- if (M_BMPDATA->m_pixmap) gdk_imlib_free_pixmap( M_BMPDATA->m_pixmap );
- if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
-
- GdkImlibImage* image = gdk_imlib_clone_scaled_image( M_BMPDATA->m_image, height, width );
- gdk_imlib_destroy_image( M_BMPDATA->m_image );
- M_BMPDATA->m_image = image;
- M_BMPDATA->m_height = height;
- M_BMPDATA->m_width = width;
-
- Render();
-
-#endif
-};
+ M_BMPDATA->m_mask = mask;
+}
-bool wxBitmap::SaveFile( const wxString &name, int WXUNUSED(type),
- wxPalette *WXUNUSED(palette) )
+bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
{
-#ifdef USE_GDK_IMLIB
-
- if (!Ok()) return FALSE;
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return FALSE;
+ }
- if (!M_BMPDATA->m_image) RecreateImage();
-
- return gdk_imlib_save_image( M_BMPDATA->m_image, WXSTRINGCAST name, NULL );
-
-#endif
-
- return FALSE;
-};
+ if (type == wxBITMAP_TYPE_PNG)
+ {
+ wxImage image = ConvertToImage();
+ if (image.Ok()) return image.SaveFile( name, type );
+ }
+
+ return FALSE;
+}
-bool wxBitmap::LoadFile( const wxString &name, int WXUNUSED(type) )
+bool wxBitmap::LoadFile( const wxString &name, int type )
{
-#ifdef USE_GDK_IMLIB
-
- UnRef();
- m_refData = new wxBitmapRefData();
-
- M_BMPDATA->m_image = gdk_imlib_load_image( WXSTRINGCAST name );
-
- if (!M_BMPDATA->m_image)
- {
UnRef();
- return FALSE;
- };
-
- Render();
-
- gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
- M_BMPDATA->m_bpp = 24; // ?
+
+ if (!wxFileExists(name)) return FALSE;
- return TRUE;
-#endif
-
- return FALSE;
-};
+ if (type == wxBITMAP_TYPE_XPM)
+ {
+ m_refData = new wxBitmapRefData();
+
+ GdkBitmap *mask = (GdkBitmap*) NULL;
+ GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
+
+ M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &mask, NULL, name );
+
+ if (mask)
+ {
+ M_BMPDATA->m_mask = new wxMask();
+ M_BMPDATA->m_mask->m_bitmap = mask;
+ }
+
+ gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
+ M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
+ }
+ else if (type == wxBITMAP_TYPE_PNG)
+ {
+ wxImage image;
+ image.LoadFile( name, type );
+ if (image.Ok()) *this = wxBitmap( image );
+ }
+ else if (type == wxBITMAP_TYPE_BMP)
+ {
+ wxImage image;
+ image.LoadFile( name, type );
+ if (image.Ok()) *this = wxBitmap( image );
+ }
+ else
+ return FALSE;
+
+ return TRUE;
+}
wxPalette *wxBitmap::GetPalette(void) const
{
- if (!Ok()) return NULL;
- return M_BMPDATA->m_palette;
-};
+ if (!Ok()) return (wxPalette *) NULL;
+ return M_BMPDATA->m_palette;
+}
GdkPixmap *wxBitmap::GetPixmap(void) const
{
- if (!Ok()) return NULL;
- return M_BMPDATA->m_pixmap;
-};
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return (GdkPixmap *) NULL;
+ }
+
+ return M_BMPDATA->m_pixmap;
+}
GdkBitmap *wxBitmap::GetBitmap(void) const
{
- if (!Ok()) return NULL;
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return (GdkBitmap *) NULL;
+ }
- return M_BMPDATA->m_bitmap;
-};
+ return M_BMPDATA->m_bitmap;
+}
-void wxBitmap::DestroyImage(void)
+wxBitmap::wxBitmap( const wxImage &image )
{
- if (!Ok()) return;
+ if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
- if (M_BMPDATA->m_image)
- {
- gdk_imlib_destroy_image( M_BMPDATA->m_image );
- M_BMPDATA->m_image = NULL;
- };
-};
+ if (!image.Ok()) return;
-void wxBitmap::RecreateImage(void)
-{
-};
+ m_refData = new wxBitmapRefData();
-void wxBitmap::Render(void)
-{
- if (!Ok()) return;
+ M_BMPDATA->m_height = image.GetHeight();
+ M_BMPDATA->m_width = image.GetWidth();
+ int width = image.GetWidth();
+ int height = image.GetHeight();
-#ifdef USE_GDK_IMLIB
+ // Create picture
+
+ GdkImage *data_image =
+ gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(), width, height );
+
+ M_BMPDATA->m_pixmap =
+ gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 );
- gdk_imlib_render( M_BMPDATA->m_image, M_BMPDATA->m_image->rgb_width, M_BMPDATA->m_image->rgb_height );
+ // Create mask
- M_BMPDATA->m_pixmap = gdk_imlib_move_image( M_BMPDATA->m_image );
- GdkBitmap *mask = gdk_imlib_move_mask( M_BMPDATA->m_image );
- if (mask)
- {
- M_BMPDATA->m_mask = new wxMask();
- M_BMPDATA->m_mask->m_bitmap = mask;
- };
+ GdkImage *mask_image = (GdkImage*) NULL;
-#endif
-};
+ if (image.HasMask())
+ {
+ unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
+
+ mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height );
+
+ M_BMPDATA->m_mask = new wxMask();
+ M_BMPDATA->m_mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 );
+ }
+
+ // Retrieve depth
+
+ GdkVisual *visual = gdk_window_get_visual( M_BMPDATA->m_pixmap );
+ if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent );
+ int bpp = visual->depth;
+ if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
+ if (bpp < 8) bpp = 8;
+
+ // Render
+
+ enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
+ byte_order b_o = RGB;
+
+ if (bpp >= 24)
+ {
+ GdkVisual *visual = gdk_visual_get_system();
+ if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB;
+ else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RGB;
+ else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG;
+ else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR;
+ else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB;
+ else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR;
+ }
+
+ int r_mask = image.GetMaskRed();
+ int g_mask = image.GetMaskGreen();
+ int b_mask = image.GetMaskBlue();
+
+ unsigned char* data = image.GetData();
+
+ int index = 0;
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < width; x++)
+ {
+ int r = data[index];
+ index++;
+ int g = data[index];
+ index++;
+ int b = data[index];
+ index++;
+
+ if (image.HasMask())
+ {
+ if ((r == r_mask) && (b == b_mask) && (g == g_mask))
+ gdk_image_put_pixel( mask_image, x, y, 1 );
+ else
+ gdk_image_put_pixel( mask_image, x, y, 0 );
+ }
+
+ switch (bpp)
+ {
+ case 8:
+ {
+ GdkColormap *cmap = gtk_widget_get_default_colormap();
+ GdkColor *colors = cmap->colors;
+ int max = 3 * (65536);
+ int index = -1;
+
+ for (int i = 0; i < cmap->size; i++)
+ {
+ int rdiff = (r << 8) - colors[i].red;
+ int gdiff = (g << 8) - colors[i].green;
+ int bdiff = (b << 8) - colors[i].blue;
+ int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
+ if (sum < max) { index = i; max = sum; }
+ }
+
+ gdk_image_put_pixel( data_image, x, y, index );
+
+ break;
+ }
+ case 15:
+ {
+ guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3);
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ break;
+ }
+ case 16:
+ {
+ guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3);
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ break;
+ }
+ case 32:
+ case 24:
+ {
+ guint32 pixel = 0;
+ switch (b_o)
+ {
+ case RGB: pixel = (r << 16) | (g << 8) | b; break;
+ case RBG: pixel = (r << 16) | (b << 8) | g; break;
+ case BRG: pixel = (b << 16) | (r << 8) | g; break;
+ case BGR: pixel = (b << 16) | (g << 8) | r; break;
+ case GRB: pixel = (g << 16) | (r << 8) | b; break;
+ case GBR: pixel = (g << 16) | (b << 8) | r; break;
+ }
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ }
+ default: break;
+ }
+ } // for
+ } // for
+
+ // Blit picture
+
+ GdkGC *data_gc = gdk_gc_new( M_BMPDATA->m_pixmap );
+
+ gdk_draw_image( M_BMPDATA->m_pixmap, data_gc, data_image, 0, 0, 0, 0, width, height );
+
+ gdk_image_destroy( data_image );
+ gdk_gc_unref( data_gc );
+
+ // Blit mask
+
+ if (image.HasMask())
+ {
+ GdkGC *mask_gc = gdk_gc_new( M_BMPDATA->m_mask->m_bitmap );
+
+ gdk_draw_image( M_BMPDATA->m_mask->m_bitmap, mask_gc, mask_image, 0, 0, 0, 0, width, height );
+
+ gdk_image_destroy( mask_image );
+ gdk_gc_unref( mask_gc );
+ }
+}
+
+wxImage wxBitmap::ConvertToImage() const
+{
+ wxImage image;
+
+ if (!Ok())
+ {
+ wxFAIL_MSG( "invalid bitmap" );
+ return image;
+ }
+
+ GdkImage *gdk_image = gdk_image_get( M_BMPDATA->m_pixmap, 0, 0, M_BMPDATA->m_width, M_BMPDATA->m_height );
+
+ if (!gdk_image) return image;
+
+ image.Create( M_BMPDATA->m_width, M_BMPDATA->m_height );
+ char unsigned *data = image.GetData();
+
+ GdkVisual *visual = gdk_window_get_visual( M_BMPDATA->m_pixmap );
+ if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent );
+ int bpp = visual->depth;
+ if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
+
+ GdkColormap *cmap = gtk_widget_get_default_colormap();
+
+ long pos = 0;
+ for (int j = 0; j < M_BMPDATA->m_height; j++)
+ {
+ for (int i = 0; i < M_BMPDATA->m_width; i++)
+ {
+ int pixel = gdk_image_get_pixel( gdk_image, i, j );
+ if (bpp <= 8)
+ {
+ data[pos] = cmap->colors[pixel].red >> 8;
+ data[pos+1] = cmap->colors[pixel].green >> 8;
+ data[pos+2] = cmap->colors[pixel].blue >> 8;
+ } else if (bpp == 15)
+ {
+ data[pos] = (pixel >> 7) & 0xf8;
+ data[pos+1] = (pixel >> 2) & 0xf8;
+ data[pos+2] = (pixel << 3) & 0xf8;
+ } else if (bpp == 16)
+ {
+ data[pos] = (pixel >> 8) & 0xf8;
+ data[pos+1] = (pixel >> 3) & 0xfc;
+ data[pos+2] = (pixel << 3) & 0xf8;
+ } else
+ {
+ data[pos] = (pixel >> 16) & 0xff;
+ data[pos+1] = (pixel >> 8) & 0xff;
+ data[pos+2] = pixel & 0xff;
+ }
+
+ pos += 3;
+ }
+ }
+
+ gdk_image_destroy( gdk_image );
+
+ return image;
+}
+
projects / wxWidgets.git / blobdiff