X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b85229d15bb4a02a2f3058718a1cf5ed99433020..8ca1a013e4e699724040ff1f514dab3b4a11d3c9:/src/gtk/bitmap.cpp?ds=sidebyside diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp index e420d57b51..e5f2b669d1 100644 --- a/src/gtk/bitmap.cpp +++ b/src/gtk/bitmap.cpp @@ -14,34 +14,16 @@ #ifndef WX_PRECOMP #include "wx/app.h" - #include "wx/dcmemory.h" #include "wx/palette.h" #include "wx/icon.h" #include "wx/math.h" + #include "wx/image.h" + #include "wx/colour.h" #endif -#include "wx/filefn.h" -#include "wx/image.h" - #include "wx/rawbmp.h" - // need this to get gdk_image_new_bitmap() - #define GDK_ENABLE_BROKEN -#include #include -#include - -#include - -extern void gdk_wx_draw_bitmap (GdkDrawable *drawable, - GdkGC *gc, - GdkDrawable *src, - gint xsrc, - gint ysrc, - gint xdest, - gint ydest, - gint width, - gint height); //----------------------------------------------------------------------------- // data @@ -95,87 +77,60 @@ bool wxMask::Create( const wxBitmap& bitmap, m_bitmap = (GdkBitmap*) NULL; } - wxImage image = bitmap.ConvertToImage(); - if (!image.Ok()) return false; - - m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, image.GetWidth(), image.GetHeight(), 1 ); - GdkGC *gc = gdk_gc_new( m_bitmap ); - - GdkColor color; - color.red = 65000; - color.green = 65000; - color.blue = 65000; - color.pixel = 1; - gdk_gc_set_foreground( gc, &color ); - gdk_gc_set_fill( gc, GDK_SOLID ); - gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() ); - - unsigned char *data = image.GetData(); - int index = 0; - - unsigned char red = colour.Red(); - unsigned char green = colour.Green(); - unsigned char blue = colour.Blue(); - - GdkVisual *visual = wxTheApp->GetGdkVisual(); - - int bpp = visual->depth; - if ((bpp == 16) && (visual->red_mask != 0xf800)) - bpp = 15; - if (bpp == 15) - { - red = red & 0xf8; - green = green & 0xf8; - blue = blue & 0xf8; - } - else if (bpp == 16) - { - red = red & 0xf8; - green = green & 0xfc; - blue = blue & 0xf8; - } - else if (bpp == 12) - { - red = red & 0xf0; - green = green & 0xf0; - blue = blue & 0xf0; + const int w = bitmap.GetWidth(); + const int h = bitmap.GetHeight(); + + // create mask as XBM format bitmap + + // one bit per pixel, each row starts on a byte boundary + const size_t out_size = size_t((w + 7) / 8) * unsigned(h); + wxByte* out = new wxByte[out_size]; + // set bits are unmasked + memset(out, 0xff, out_size); + unsigned bit_index = 0; + if (bitmap.HasPixbuf()) + { + const wxByte r_mask = colour.Red(); + const wxByte g_mask = colour.Green(); + const wxByte b_mask = colour.Blue(); + GdkPixbuf* pixbuf = bitmap.GetPixbuf(); + const wxByte* in = gdk_pixbuf_get_pixels(pixbuf); + const int inc = 3 + int(gdk_pixbuf_get_has_alpha(pixbuf) != 0); + const int rowpadding = gdk_pixbuf_get_rowstride(pixbuf) - inc * w; + for (int y = 0; y < h; y++, in += rowpadding) + { + for (int x = 0; x < w; x++, in += inc, bit_index++) + if (in[0] == r_mask && in[1] == g_mask && in[2] == b_mask) + out[bit_index >> 3] ^= 1 << (bit_index & 7); + // move index to next byte boundary + bit_index = (bit_index + 7) & ~7u; + } } - - color.red = 0; - color.green = 0; - color.blue = 0; - color.pixel = 0; - gdk_gc_set_foreground( gc, &color ); - - for (int j = 0; j < image.GetHeight(); j++) + else { - int start_x = -1; - int i; - for (i = 0; i < image.GetWidth(); i++) + GdkImage* image = gdk_drawable_get_image(bitmap.GetPixmap(), 0, 0, w, h); + GdkColormap* colormap = gdk_image_get_colormap(image); + guint32 mask_pixel; + if (colormap == NULL) + // mono bitmap, white is pixel value 0 + mask_pixel = guint32(colour.Red() != 255 || colour.Green() != 255 || colour.Blue() != 255); + else { - if ((data[index] == red) && - (data[index+1] == green) && - (data[index+2] == blue)) - { - if (start_x == -1) - start_x = i; - } - else - { - if (start_x != -1) - { - gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j ); - start_x = -1; - } - } - index += 3; + wxColor c(colour); + c.CalcPixel(colormap); + mask_pixel = c.GetPixel(); } - if (start_x != -1) - gdk_draw_line( m_bitmap, gc, start_x, j, i, j ); + for (int y = 0; y < h; y++) + { + for (int x = 0; x < w; x++, bit_index++) + if (gdk_image_get_pixel(image, x, y) == mask_pixel) + out[bit_index >> 3] ^= 1 << (bit_index & 7); + bit_index = (bit_index + 7) & ~7u; + } + g_object_unref(image); } - - g_object_unref (gc); - + m_bitmap = gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h); + delete[] out; return true; } @@ -210,9 +165,8 @@ bool wxMask::Create( const wxBitmap& bitmap ) if (!m_bitmap) return false; GdkGC *gc = gdk_gc_new( m_bitmap ); - - gdk_wx_draw_bitmap( m_bitmap, gc, bitmap.GetPixmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() ); - + gdk_gc_set_function(gc, GDK_COPY_INVERT); + gdk_draw_drawable(m_bitmap, gc, bitmap.GetPixmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight()); g_object_unref (gc); return true; @@ -231,7 +185,7 @@ class wxBitmapRefData: public wxObjectRefData { public: wxBitmapRefData(); - ~wxBitmapRefData(); + virtual ~wxBitmapRefData(); GdkPixmap *m_pixmap; GdkPixbuf *m_pixbuf; @@ -239,7 +193,9 @@ public: int m_width; int m_height; int m_bpp; +#if wxUSE_PALETTE wxPalette *m_palette; +#endif // wxUSE_PALETTE }; wxBitmapRefData::wxBitmapRefData() @@ -250,7 +206,9 @@ wxBitmapRefData::wxBitmapRefData() m_width = 0; m_height = 0; m_bpp = 0; +#if wxUSE_PALETTE m_palette = (wxPalette *) NULL; +#endif // wxUSE_PALETTE } wxBitmapRefData::~wxBitmapRefData() @@ -271,277 +229,142 @@ wxBitmapRefData::~wxBitmapRefData() IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) -wxBitmap::wxBitmap() +wxBitmap::wxBitmap(int width, int height, int depth) { + Create(width, height, depth); } -wxBitmap::wxBitmap( int width, int height, int depth ) +wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type) { - Create( width, height, depth ); + LoadFile(filename, type); } -bool wxBitmap::Create( int width, int height, int depth ) +wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) { - UnRef(); - - if ( width <= 0 || height <= 0 ) + wxASSERT(depth == 1); + if (width > 0 && height > 0 && depth == 1) { - return false; - } + SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height)); - GdkVisual *visual = wxTheApp->GetGdkVisual(); - - if (depth == -1) - depth = visual->depth; - - wxCHECK_MSG( (depth == visual->depth) || (depth == 1) || (depth == 32), false, - wxT("invalid bitmap depth") ); - - m_refData = new wxBitmapRefData(); - M_BMPDATA->m_mask = (wxMask *) NULL; - M_BMPDATA->m_width = width; - M_BMPDATA->m_height = height; - M_BMPDATA->m_bpp = depth; - if (depth == 32) - { - M_BMPDATA->m_pixbuf = gdk_pixbuf_new( GDK_COLORSPACE_RGB, true, - 8, width, height); - } - else - { - M_BMPDATA->m_pixmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, depth ); + wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") ); } - - return Ok(); } -bool wxBitmap::CreateFromXpm( const char **bits ) +wxBitmap::wxBitmap(const char* const* bits) { - UnRef(); - - wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") ); - - GdkVisual *visual = wxTheApp->GetGdkVisual(); + wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data")); - m_refData = new wxBitmapRefData(); + GdkBitmap* mask = NULL; + SetPixmap(gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, wx_const_cast(char**, bits))); - GdkBitmap *mask = (GdkBitmap*) NULL; - - M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxGetRootWindow()->window, &mask, NULL, (gchar **) bits ); - - wxCHECK_MSG( M_BMPDATA->m_pixmap, false, wxT("couldn't create pixmap") ); - - if (mask) + if (M_BMPDATA->m_pixmap != NULL && mask != NULL) { - M_BMPDATA->m_mask = new wxMask(); + M_BMPDATA->m_mask = new wxMask; M_BMPDATA->m_mask->m_bitmap = mask; } - - gdk_drawable_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - - M_BMPDATA->m_bpp = visual->depth; // Can we get a different depth from create_from_xpm_d() ? - - return true; } -wxBitmap wxBitmap::Rescale( int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy ) +wxBitmap::~wxBitmap() { - wxCHECK_MSG( Ok(), wxNullBitmap, wxT("invalid bitmap") ); - - if (newy==M_BMPDATA->m_width && newy==M_BMPDATA->m_height) - return *this; +} - int width = wxMax(newx, 1); - int height = wxMax(newy, 1); - width = wxMin(width, clipwidth); - height = wxMin(height, clipheight); +bool wxBitmap::Create( int width, int height, int depth ) +{ + UnRef(); - wxBitmap bmp; + if ( width <= 0 || height <= 0 ) + { + return false; + } - if (HasPixbuf()) + if (depth == 32) { - bmp.SetWidth(width); - bmp.SetHeight(height); - bmp.SetDepth(GetDepth()); - bmp.SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, - gdk_pixbuf_get_has_alpha(GetPixbuf()), - 8, width, height)); - gdk_pixbuf_scale(GetPixbuf(), bmp.GetPixbuf(), - 0, 0, width, height, - clipx, clipy, - (double)newx/GetWidth(), (double)newy/GetHeight(), - GDK_INTERP_BILINEAR); + SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32); } else { - GdkImage *img = (GdkImage*) NULL; - if (GetPixmap()) - img = gdk_image_get( GetPixmap(), 0, 0, GetWidth(), GetHeight() ); - else - wxFAIL_MSG( wxT("Ill-formed bitmap") ); - - wxCHECK_MSG( img, wxNullBitmap, wxT("couldn't create image") ); - - int bpp = -1; - - - GdkGC *gc = NULL; - GdkPixmap *dstpix = NULL; - if (GetDepth() != 1) + if (depth != 1) { - GdkVisual *visual = gdk_drawable_get_visual( GetPixmap() ); - if (visual == NULL) - visual = wxTheApp->GetGdkVisual(); - - bpp = visual->depth; - bmp = wxBitmap(width,height,bpp); - dstpix = bmp.GetPixmap(); - gc = gdk_gc_new( dstpix ); - } + const GdkVisual* visual = wxTheApp->GetGdkVisual(); + if (depth == -1) + depth = visual->depth; - char *dst = NULL; - long dstbyteperline = 0; - - if (GetDepth() == 1) - { - bpp = 1; - dstbyteperline = width/8*M_BMPDATA->m_bpp; - if (width*M_BMPDATA->m_bpp % 8 != 0) - dstbyteperline++; - dst = (char*) malloc(dstbyteperline*height); + wxCHECK_MSG(depth == visual->depth, false, wxT("invalid bitmap depth")); } - // be careful to use the right scaling factor - float scx = (float)M_BMPDATA->m_width/(float)newx; - float scy = (float)M_BMPDATA->m_height/(float)newy; - // prepare accel-tables - int *tablex = (int *)calloc(width,sizeof(int)); - int *tabley = (int *)calloc(height,sizeof(int)); - - // accel table filled with clipped values - for (int x = 0; x < width; x++) - tablex[x] = (int) (scx * (x+clipx)); - for (int y = 0; y < height; y++) - tabley[y] = (int) (scy * (y+clipy)); - - // Main rescaling routine starts here - for (int h = 0; h < height; h++) - { - char outbyte = 0; - int old_x = -1; - guint32 old_pixval = 0; + SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth)); + } - for (int w = 0; w < width; w++) - { - guint32 pixval; - int x = tablex[w]; - if (x == old_x) - pixval = old_pixval; - else - { - pixval = gdk_image_get_pixel( img, x, tabley[h] ); - old_pixval = pixval; - old_x = x; - } + return Ok(); +} - if ( dst ) - { - if (!pixval) - { - char bit=1; - char shift = bit << (w % 8); - outbyte |= shift; - } +wxBitmap wxBitmap::Rescale(int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy) const +{ + wxBitmap bmp; - if ((w+1)%8==0) - { - dst[h*dstbyteperline+w/8] = outbyte; - outbyte = 0; - } - } - else - { - GdkColor col; - col.pixel = pixval; - gdk_gc_set_foreground( gc, &col ); - gdk_draw_point( dstpix, gc, w, h); - } - } + wxCHECK_MSG(Ok(), bmp, wxT("invalid bitmap")); - // do not forget the last byte - if ( dst && (width % 8 != 0) ) - dst[h*dstbyteperline+width/8] = outbyte; - } + int width = wxMax(newx, 1); + int height = wxMax(newy, 1); + width = wxMin(width, clipwidth); + height = wxMin(height, clipheight); - g_object_unref (img); - if (gc) g_object_unref (gc); + const double scale_x = double(newx) / M_BMPDATA->m_width; + const double scale_y = double(newy) / M_BMPDATA->m_height; - if ( dst ) - { - bmp = wxBitmap( (const char *)dst, width, height, 1 ); - free( dst ); - } + // Converting to pixbuf, scaling with gdk_pixbuf_scale, and converting + // back, is faster than scaling pixmap ourselves. - if (GetMask()) - { - dstbyteperline = width/8; - if (width % 8 != 0) - dstbyteperline++; - dst = (char*) malloc(dstbyteperline*height); - img = gdk_image_get( GetMask()->GetBitmap(), 0, 0, GetWidth(), GetHeight() ); + // use pixbuf if already available, + // otherwise create temporary pixbuf from pixmap + GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf; + if (pixbuf) + g_object_ref(pixbuf); + else + pixbuf = gdk_pixbuf_get_from_drawable( + NULL, M_BMPDATA->m_pixmap, NULL, + 0, 0, 0, 0, M_BMPDATA->m_width, M_BMPDATA->m_height); - for (int h = 0; h < height; h++) - { - char outbyte = 0; - int old_x = -1; - guint32 old_pixval = 0; + // new pixbuf for scaled wxBitmap + GdkPixbuf* pixbuf_scaled = gdk_pixbuf_new( + GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf), 8, width, height); - for (int w = 0; w < width; w++) - { - guint32 pixval; - int x = tablex[w]; - if (x == old_x) - pixval = old_pixval; - else - { - pixval = gdk_image_get_pixel( img, x, tabley[h] ); - old_pixval = pixval; - old_x = x; - } + // GDK_INTERP_NEAREST is the lowest-quality method for continuous-tone + // images, but the only one which preserves sharp edges + gdk_pixbuf_scale( + pixbuf, pixbuf_scaled, + 0, 0, width, height, -clipx, -clipy, scale_x, scale_y, + GDK_INTERP_NEAREST); - if (pixval) - { - char bit=1; - char shift = bit << (w % 8); - outbyte |= shift; - } + g_object_unref(pixbuf); + bmp.SetPixbuf(pixbuf_scaled, M_BMPDATA->m_bpp); - if ((w+1)%8 == 0) - { - dst[h*dstbyteperline+w/8] = outbyte; - outbyte = 0; - } - } + if (M_BMPDATA->m_mask) + { + pixbuf = gdk_pixbuf_get_from_drawable( + NULL, M_BMPDATA->m_mask->m_bitmap, NULL, + 0, 0, 0, 0, M_BMPDATA->m_width, M_BMPDATA->m_height); - // do not forget the last byte - if (width % 8 != 0) - dst[h*dstbyteperline+width/8] = outbyte; - } - wxMask* mask = new wxMask; - mask->m_bitmap = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) dst, width, height ); - bmp.SetMask(mask); + pixbuf_scaled = gdk_pixbuf_new( + GDK_COLORSPACE_RGB, false, 8, width, height); - free( dst ); - g_object_unref (img); - } + gdk_pixbuf_scale( + pixbuf, pixbuf_scaled, + 0, 0, width, height, -clipx, -clipy, scale_x, scale_y, + GDK_INTERP_NEAREST); - free( tablex ); - free( tabley ); - } + g_object_unref(pixbuf); + // use existing functionality to create mask from scaled pixbuf + wxBitmap maskbmp; + maskbmp.SetPixbuf(pixbuf_scaled); + bmp.SetMask(new wxMask(maskbmp, *wxBLACK)); + } return bmp; } +#if wxUSE_IMAGE + bool wxBitmap::CreateFromImage(const wxImage& image, int depth) { UnRef(); @@ -552,237 +375,112 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth) if (image.GetWidth() <= 0 || image.GetHeight() <= 0) return false; - m_refData = new wxBitmapRefData(); + // create pixbuf if image has alpha and requested depth is compatible + if (image.HasAlpha() && (depth == -1 || depth == 32)) + return CreateFromImageAsPixbuf(image); + + // otherwise create pixmap, if alpha is present it will be converted to mask + return CreateFromImageAsPixmap(image, depth); +} +bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth) +{ + const int w = image.GetWidth(); + const int h = image.GetHeight(); if (depth == 1) { - return CreateFromImageAsBitmap(image); + // create XBM format bitmap + + // one bit per pixel, each row starts on a byte boundary + const size_t out_size = size_t((w + 7) / 8) * unsigned(h); + wxByte* out = new wxByte[out_size]; + // set bits are black + memset(out, 0xff, out_size); + const wxByte* in = image.GetData(); + unsigned bit_index = 0; + for (int y = 0; y < h; y++) + { + for (int x = 0; x < w; x++, in += 3, bit_index++) + if (in[0] == 255 && in[1] == 255 && in[2] == 255) + out[bit_index >> 3] ^= 1 << (bit_index & 7); + // move index to next byte boundary + bit_index = (bit_index + 7) & ~7u; + } + SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h)); + delete[] out; } else { - if (image.HasAlpha()) - return CreateFromImageAsPixbuf(image); - - return CreateFromImageAsPixmap(image); + SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, w, h, depth)); + GdkGC* gc = gdk_gc_new(M_BMPDATA->m_pixmap); + gdk_draw_rgb_image( + M_BMPDATA->m_pixmap, gc, + 0, 0, w, h, + GDK_RGB_DITHER_NONE, image.GetData(), w * 3); + g_object_unref(gc); } -} - -// conversion to mono bitmap: -bool wxBitmap::CreateFromImageAsBitmap(const wxImage& img) -{ - // convert alpha channel to mask, if it is present: - wxImage image(img); - image.ConvertAlphaToMask(); - - int width = image.GetWidth(); - int height = image.GetHeight(); - - SetHeight( height ); - SetWidth( width ); - - SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) ); - - SetDepth( 1 ); - - GdkVisual *visual = wxTheApp->GetGdkVisual(); - - // Create picture image - unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); - - GdkImage *data_image = - gdk_image_new_bitmap( visual, data_data, width, height ); - - // Create mask image - - GdkImage *mask_image = (GdkImage*) NULL; - - if (image.HasMask()) + const wxByte* alpha = image.GetAlpha(); + if (alpha != NULL || image.HasMask()) { - unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); - - mask_image = gdk_image_new_bitmap( visual, mask_data, width, height ); - - wxMask *mask = new wxMask(); - mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ); + // create mask as XBM format bitmap - SetMask( mask ); - } - - 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++) + const size_t out_size = size_t((w + 7) / 8) * unsigned(h); + wxByte* out = new wxByte[out_size]; + memset(out, 0xff, out_size); + unsigned bit_index = 0; + if (alpha != NULL) { - int r = data[index]; - index++; - int g = data[index]; - index++; - int b = data[index]; - index++; - - if (image.HasMask()) + for (int y = 0; y < h; y++) { - 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 ); + for (int x = 0; x < w; x++, bit_index++) + if (*alpha++ < wxIMAGE_ALPHA_THRESHOLD) + out[bit_index >> 3] ^= 1 << (bit_index & 7); + bit_index = (bit_index + 7) & ~7u; } - - if ((r == 255) && (b == 255) && (g == 255)) - gdk_image_put_pixel( data_image, x, y, 1 ); - else - gdk_image_put_pixel( data_image, x, y, 0 ); - - } // for - } // for - - // Blit picture - - GdkGC *data_gc = gdk_gc_new( GetPixmap() ); - - gdk_draw_image( GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); - - g_object_unref (data_image); - g_object_unref (data_gc); - - // Blit mask - - if (image.HasMask()) - { - GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() ); - - gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); - - g_object_unref (mask_image); - g_object_unref (mask_gc); - } - - return true; -} - -// conversion to colour bitmap: -bool wxBitmap::CreateFromImageAsPixmap(const wxImage& img) -{ - // convert alpha channel to mask, if it is present: - wxImage image(img); - image.ConvertAlphaToMask(); - - int width = image.GetWidth(); - int height = image.GetHeight(); - - SetHeight( height ); - SetWidth( width ); - - SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) ); - - GdkVisual *visual = wxTheApp->GetGdkVisual(); - - int bpp = visual->depth; - - SetDepth( bpp ); - - GdkGC *gc = gdk_gc_new( GetPixmap() ); - - gdk_draw_rgb_image( GetPixmap(), - gc, - 0, 0, - width, height, - GDK_RGB_DITHER_NONE, - image.GetData(), - width*3 ); - - g_object_unref (gc); - - // Create mask image - - GdkImage *mask_image = (GdkImage*) NULL; - - if (!image.HasMask()) - return true; - - unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); - - mask_image = gdk_image_new_bitmap( visual, mask_data, width, height ); - - wxMask *mask = new wxMask(); - mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ); - - SetMask( mask ); - - 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++) + } + else { - int r = data[index]; - index++; - int g = data[index]; - index++; - int b = data[index]; - index++; - - 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 ); - } // for - } // for - - // Blit mask - - GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() ); - - gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); - - g_object_unref (mask_image); - g_object_unref (mask_gc); - + const wxByte r_mask = image.GetMaskRed(); + const wxByte g_mask = image.GetMaskGreen(); + const wxByte b_mask = image.GetMaskBlue(); + const wxByte* in = image.GetData(); + for (int y = 0; y < h; y++) + { + for (int x = 0; x < w; x++, in += 3, bit_index++) + if (in[0] == r_mask && in[1] == g_mask && in[2] == b_mask) + out[bit_index >> 3] ^= 1 << (bit_index & 7); + bit_index = (bit_index + 7) & ~7u; + } + } + wxMask* mask = new wxMask; + mask->m_bitmap = gdk_bitmap_create_from_data(M_BMPDATA->m_pixmap, (char*)out, w, h); + SetMask(mask); + delete[] out; + } return true; } bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) { + wxASSERT(image.HasAlpha()); + int width = image.GetWidth(); int height = image.GetHeight(); - GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, - image.HasAlpha(), - 8 /* bits per sample */, - width, height); + Create(width, height, 32); + GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf; if (!pixbuf) return false; - wxASSERT( image.HasAlpha() ); // for now - wxASSERT( gdk_pixbuf_get_n_channels(pixbuf) == 4 ); - wxASSERT( gdk_pixbuf_get_width(pixbuf) == width ); - wxASSERT( gdk_pixbuf_get_height(pixbuf) == height ); - - M_BMPDATA->m_pixbuf = pixbuf; - SetHeight(height); - SetWidth(width); - SetDepth(wxTheApp->GetGdkVisual()->depth); - // Copy the data: - unsigned char *in = image.GetData(); + const unsigned char* in = image.GetData(); unsigned char *out = gdk_pixbuf_get_pixels(pixbuf); unsigned char *alpha = image.GetAlpha(); - int rowinc = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width; + int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width; - for (int y = 0; y < height; y++, out += rowinc) + for (int y = 0; y < height; y++, out += rowpad) { for (int x = 0; x < width; x++, alpha++, out += 4, in += 3) { @@ -798,222 +496,108 @@ bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) wxImage wxBitmap::ConvertToImage() const { - wxImage image; - wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); - image.Create(GetWidth(), GetHeight()); + const int w = GetWidth(); + const int h = GetHeight(); + wxImage image(w, h, false); unsigned char *data = image.GetData(); - if (!data) - { - wxFAIL_MSG( wxT("couldn't create image") ); - return wxNullImage; - } + wxCHECK_MSG(data != NULL, wxNullImage, wxT("couldn't create image") ); + // prefer pixbuf if available, it will preserve alpha and should be quicker if (HasPixbuf()) { GdkPixbuf *pixbuf = GetPixbuf(); - wxASSERT( gdk_pixbuf_get_has_alpha(pixbuf) ); - - int w = GetWidth(); - int h = GetHeight(); - - image.SetAlpha(); - - unsigned char *alpha = image.GetAlpha(); - unsigned char *in = gdk_pixbuf_get_pixels(pixbuf); + unsigned char* alpha = NULL; + if (gdk_pixbuf_get_has_alpha(pixbuf)) + { + image.SetAlpha(); + alpha = image.GetAlpha(); + } + const unsigned char* in = gdk_pixbuf_get_pixels(pixbuf); unsigned char *out = data; - int rowinc = gdk_pixbuf_get_rowstride(pixbuf) - 4 * w; + const int inc = 3 + int(alpha != NULL); + const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - inc * w; - for (int y = 0; y < h; y++, in += rowinc) + for (int y = 0; y < h; y++, in += rowpad) { - for (int x = 0; x < w; x++, in += 4, out += 3, alpha++) + for (int x = 0; x < w; x++, in += inc, out += 3) { out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; - *alpha = in[3]; + if (alpha != NULL) + *alpha++ = in[3]; } } } else { - // the colour used as transparent one in wxImage and the one it is - // replaced with when it really occurs in the bitmap - static const int MASK_RED = 1; - static const int MASK_GREEN = 2; - static const int MASK_BLUE = 3; - static const int MASK_BLUE_REPLACEMENT = 2; - - GdkImage *gdk_image = (GdkImage*) NULL; - - if (HasPixmap()) - { - gdk_image = gdk_image_get( GetPixmap(), - 0, 0, - GetWidth(), GetHeight() ); - } - else - { - wxFAIL_MSG( wxT("Ill-formed bitmap") ); - } - - wxCHECK_MSG( gdk_image, wxNullImage, wxT("couldn't create image") ); - - GdkImage *gdk_image_mask = (GdkImage*) NULL; - if (GetMask()) - { - gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(), - 0, 0, - GetWidth(), GetHeight() ); - - image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE ); - } - - int bpp = -1; - int red_shift_right = 0; - int green_shift_right = 0; - int blue_shift_right = 0; - int red_shift_left = 0; - int green_shift_left = 0; - int blue_shift_left = 0; - bool use_shift = false; - - if (GetDepth() != 1) - { - GdkVisual *visual = gdk_drawable_get_visual( GetPixmap() ); - if (visual == NULL) - visual = wxTheApp->GetGdkVisual(); - - bpp = visual->depth; - if (bpp == 16) - bpp = visual->red_prec + visual->green_prec + visual->blue_prec; - red_shift_right = visual->red_shift; - red_shift_left = 8-visual->red_prec; - green_shift_right = visual->green_shift; - green_shift_left = 8-visual->green_prec; - blue_shift_right = visual->blue_shift; - blue_shift_left = 8-visual->blue_prec; - - use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR); - } - else + GdkPixmap* pixmap = GetPixmap(); + GdkPixmap* pixmap_invert = NULL; + if (GetDepth() == 1) { - bpp = 1; + // mono bitmaps are inverted, i.e. 0 is white + pixmap_invert = gdk_pixmap_new(pixmap, w, h, 1); + GdkGC* gc = gdk_gc_new(pixmap_invert); + gdk_gc_set_function(gc, GDK_COPY_INVERT); + gdk_draw_drawable(pixmap_invert, gc, pixmap, 0, 0, 0, 0, w, h); + g_object_unref(gc); + pixmap = pixmap_invert; } + // create a pixbuf which shares data with the wxImage + GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data( + data, GDK_COLORSPACE_RGB, false, 8, w, h, 3 * w, NULL, NULL); + gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0, w, h); - GdkColormap *cmap = gtk_widget_get_default_colormap(); - - long pos = 0; - for (int j = 0; j < GetHeight(); j++) + g_object_unref(pixbuf); + if (pixmap_invert != NULL) + g_object_unref(pixmap_invert); + } + // convert mask, unless there is already alpha + if (GetMask() && !image.HasAlpha()) + { + // we hard code the mask colour for now but we could also make an + // effort (and waste time) to choose a colour not present in the + // image already to avoid having to fudge the pixels below -- + // whether it's worth to do it is unclear however + const int MASK_RED = 1; + const int MASK_GREEN = 2; + const int MASK_BLUE = 3; + const int MASK_BLUE_REPLACEMENT = 2; + + image.SetMaskColour(MASK_RED, MASK_GREEN, MASK_BLUE); + GdkImage* image_mask = gdk_drawable_get_image(GetMask()->GetBitmap(), 0, 0, w, h); + + for (int y = 0; y < h; y++) { - for (int i = 0; i < GetWidth(); i++) + for (int x = 0; x < w; x++, data += 3) { - wxUint32 pixel = gdk_image_get_pixel( gdk_image, i, j ); - if (bpp == 1) - { - if (pixel == 0) - { - data[pos] = 0; - data[pos+1] = 0; - data[pos+2] = 0; - } - else - { - data[pos] = 255; - data[pos+1] = 255; - data[pos+2] = 255; - } - } - else if (use_shift) - { - data[pos] = (pixel >> red_shift_right) << red_shift_left; - data[pos+1] = (pixel >> green_shift_right) << green_shift_left; - data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left; - } - else if (cmap->colors) + if (gdk_image_get_pixel(image_mask, x, y) == 0) { - data[pos] = cmap->colors[pixel].red >> 8; - data[pos+1] = cmap->colors[pixel].green >> 8; - data[pos+2] = cmap->colors[pixel].blue >> 8; + data[0] = MASK_RED; + data[1] = MASK_GREEN; + data[2] = MASK_BLUE; } - else + else if (data[0] == MASK_RED && data[1] == MASK_GREEN && data[2] == MASK_BLUE) { - wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") ); + // we have to fudge the colour a bit to prevent + // this pixel from appearing transparent + data[2] = MASK_BLUE_REPLACEMENT; } - - if (gdk_image_mask) - { - int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); - if (mask_pixel == 0) - { - data[pos] = MASK_RED; - data[pos+1] = MASK_GREEN; - data[pos+2] = MASK_BLUE; - } - else if ( data[pos] == MASK_RED && - data[pos+1] == MASK_GREEN && - data[pos+2] == MASK_BLUE ) - { - data[pos+2] = MASK_BLUE_REPLACEMENT; - } - } - - pos += 3; } } - - g_object_unref (gdk_image); - if (gdk_image_mask) g_object_unref (gdk_image_mask); + g_object_unref(image_mask); } return image; } -wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type ) -{ - LoadFile( filename, type ); -} - -wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth)) -{ - if ( width > 0 && height > 0 ) - { - m_refData = new wxBitmapRefData(); - - M_BMPDATA->m_mask = (wxMask *) NULL; - M_BMPDATA->m_pixmap = gdk_bitmap_create_from_data - ( - wxGetRootWindow()->window, - (gchar *) bits, - width, - height - ); - M_BMPDATA->m_width = width; - M_BMPDATA->m_height = height; - M_BMPDATA->m_bpp = 1; - - wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") ); - } -} - -wxBitmap::~wxBitmap() -{ -} - -bool wxBitmap::operator == ( const wxBitmap& bmp ) const -{ - return m_refData == bmp.m_refData; -} +#endif // wxUSE_IMAGE -bool wxBitmap::operator != ( const wxBitmap& bmp ) const -{ - return m_refData != bmp.m_refData; -} - -bool wxBitmap::Ok() const +bool wxBitmap::IsOk() const { return (m_refData != NULL) && ( @@ -1054,70 +638,52 @@ void wxBitmap::SetMask( wxMask *mask ) { wxCHECK_RET( Ok(), wxT("invalid bitmap") ); - if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; - + AllocExclusive(); + delete M_BMPDATA->m_mask; M_BMPDATA->m_mask = mask; } bool wxBitmap::CopyFromIcon(const wxIcon& icon) { *this = icon; - return true; + return Ok(); } wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const { - wxCHECK_MSG( Ok() && - (rect.x >= 0) && (rect.y >= 0) && - (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height), - wxNullBitmap, wxT("invalid bitmap or bitmap region") ); + wxBitmap ret; - wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp ); - wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); + wxCHECK_MSG(Ok(), ret, wxT("invalid bitmap")); + wxCHECK_MSG(rect.x >= 0 && rect.y >= 0 && + rect.x + rect.width <= M_BMPDATA->m_width && + rect.y + rect.height <= M_BMPDATA->m_height, + ret, wxT("invalid bitmap region")); - if (HasPixbuf()) + if (HasPixbuf() || M_BMPDATA->m_bpp == 32) { GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(GetPixbuf()), 8, rect.width, rect.height); - ret.SetPixbuf(pixbuf); + ret.SetPixbuf(pixbuf, M_BMPDATA->m_bpp); gdk_pixbuf_copy_area(GetPixbuf(), rect.x, rect.y, rect.width, rect.height, pixbuf, 0, 0); } else { - if (ret.GetDepth() != 1) - { - GdkGC *gc = gdk_gc_new( ret.GetPixmap() ); - gdk_draw_drawable( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height ); - g_object_unref (gc); - } - else - { - GdkGC *gc = gdk_gc_new( ret.GetPixmap() ); - GdkColor col; - col.pixel = 0xFFFFFF; - gdk_gc_set_foreground( gc, &col ); - col.pixel = 0; - gdk_gc_set_background( gc, &col ); - gdk_wx_draw_bitmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height ); - g_object_unref (gc); - } + ret.Create(rect.width, rect.height, M_BMPDATA->m_bpp); + GdkGC *gc = gdk_gc_new( ret.GetPixmap() ); + gdk_draw_drawable( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height ); + g_object_unref (gc); } - - if (GetMask()) + // make mask, unless there is already alpha + if (GetMask() && !HasAlpha()) { wxMask *mask = new wxMask; mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 ); GdkGC *gc = gdk_gc_new( mask->m_bitmap ); - GdkColor col; - col.pixel = 0xFFFFFF; - gdk_gc_set_foreground( gc, &col ); - col.pixel = 0; - gdk_gc_set_background( gc, &col ); - gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, rect.x, rect.y, 0, 0, rect.width, rect.height ); + gdk_draw_drawable(mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, rect.x, rect.y, 0, 0, rect.width, rect.height); g_object_unref (gc); ret.SetMask( mask ); @@ -1130,65 +696,46 @@ bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalett { wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); +#if wxUSE_IMAGE // Try to save the bitmap via wxImage handlers: - { - wxImage image = ConvertToImage(); - if (image.Ok()) return image.SaveFile( name, type ); - } - + wxImage image = ConvertToImage(); + return image.Ok() && image.SaveFile(name, type); +#else // !wxUSE_IMAGE return false; +#endif // wxUSE_IMAGE } bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type ) { UnRef(); - if (!wxFileExists(name)) - return false; - - GdkVisual *visual = wxTheApp->GetGdkVisual(); - if (type == wxBITMAP_TYPE_XPM) { - m_refData = new wxBitmapRefData(); - GdkBitmap *mask = (GdkBitmap*) NULL; - - M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm - ( - wxGetRootWindow()->window, - &mask, - NULL, - name.fn_str() - ); + SetPixmap(gdk_pixmap_create_from_xpm(wxGetRootWindow()->window, &mask, NULL, name.fn_str())); if (mask) { - M_BMPDATA->m_mask = new wxMask(); - M_BMPDATA->m_mask->m_bitmap = mask; + M_BMPDATA->m_mask = new wxMask; + M_BMPDATA->m_mask->m_bitmap = mask; } - - gdk_drawable_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - - M_BMPDATA->m_bpp = visual->depth; } +#if wxUSE_IMAGE else // try if wxImage can load it { wxImage image; - if ( !image.LoadFile( name, type ) || !image.Ok() ) - return false; - - *this = wxBitmap(image); + if (image.LoadFile(name, type) && image.Ok()) + CreateFromImage(image, -1); } +#endif // wxUSE_IMAGE - return true; + return Ok(); } #if wxUSE_PALETTE wxPalette *wxBitmap::GetPalette() const { - if (!Ok()) - return (wxPalette *) NULL; + wxCHECK_MSG(Ok(), NULL, wxT("invalid bitmap")); return M_BMPDATA->m_palette; } @@ -1201,34 +748,33 @@ void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette)) void wxBitmap::SetHeight( int height ) { - if (!m_refData) - m_refData = new wxBitmapRefData(); - + AllocExclusive(); M_BMPDATA->m_height = height; } void wxBitmap::SetWidth( int width ) { - if (!m_refData) - m_refData = new wxBitmapRefData(); - + AllocExclusive(); M_BMPDATA->m_width = width; } void wxBitmap::SetDepth( int depth ) { - if (!m_refData) - m_refData = new wxBitmapRefData(); - + AllocExclusive(); M_BMPDATA->m_bpp = depth; } void wxBitmap::SetPixmap( GdkPixmap *pixmap ) { if (!m_refData) - m_refData = new wxBitmapRefData(); + m_refData = new wxBitmapRefData; + // AllocExclusive should not be needed for this internal function + wxASSERT(m_refData->GetRefCount() == 1); + wxASSERT(M_BMPDATA->m_pixmap == NULL); M_BMPDATA->m_pixmap = pixmap; + gdk_drawable_get_size(pixmap, &M_BMPDATA->m_width, &M_BMPDATA->m_height); + M_BMPDATA->m_bpp = gdk_drawable_get_depth(pixmap); PurgeOtherRepresentations(Pixmap); } @@ -1237,14 +783,20 @@ GdkPixmap *wxBitmap::GetPixmap() const wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") ); // create the pixmap on the fly if we use Pixbuf representation: - if (HasPixbuf() && !HasPixmap()) + if (M_BMPDATA->m_pixmap == NULL) { - delete M_BMPDATA->m_mask; - M_BMPDATA->m_mask = new wxMask(); + GdkPixmap** pmask = NULL; + if (gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf)) + { + // make new mask from alpha + delete M_BMPDATA->m_mask; + M_BMPDATA->m_mask = new wxMask; + pmask = &M_BMPDATA->m_mask->m_bitmap; + } gdk_pixbuf_render_pixmap_and_mask(M_BMPDATA->m_pixbuf, &M_BMPDATA->m_pixmap, - &M_BMPDATA->m_mask->m_bitmap, - 128 /*threshold*/); + pmask, + 0x80 /* alpha threshold */); } return M_BMPDATA->m_pixmap; @@ -1261,7 +813,7 @@ GdkPixbuf *wxBitmap::GetPixbuf() const { wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); - if (HasPixmap() && !HasPixbuf()) + if (M_BMPDATA->m_pixbuf == NULL) { int width = GetWidth(); int height = GetHeight(); @@ -1269,9 +821,9 @@ GdkPixbuf *wxBitmap::GetPixbuf() const GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, GetMask() != NULL, 8, width, height); - M_BMPDATA->m_pixbuf = - gdk_pixbuf_get_from_drawable(pixbuf, M_BMPDATA->m_pixmap, NULL, - 0, 0, 0, 0, width, height); + M_BMPDATA->m_pixbuf = pixbuf; + gdk_pixbuf_get_from_drawable(pixbuf, M_BMPDATA->m_pixmap, NULL, + 0, 0, 0, 0, width, height); // apply the mask to created pixbuf: if (M_BMPDATA->m_pixbuf && M_BMPDATA->m_mask) @@ -1313,12 +865,23 @@ bool wxBitmap::HasPixbuf() const return M_BMPDATA->m_pixbuf != NULL; } -void wxBitmap::SetPixbuf( GdkPixbuf *pixbuf ) +void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf, int depth) { if (!m_refData) - m_refData = new wxBitmapRefData(); + m_refData = new wxBitmapRefData; + // AllocExclusive should not be needed for this internal function + wxASSERT(m_refData->GetRefCount() == 1); + wxASSERT(M_BMPDATA->m_pixbuf == NULL); M_BMPDATA->m_pixbuf = pixbuf; + M_BMPDATA->m_width = gdk_pixbuf_get_width(pixbuf); + M_BMPDATA->m_height = gdk_pixbuf_get_height(pixbuf); + // if depth specified + if (depth != 0) + M_BMPDATA->m_bpp = depth; + else if (M_BMPDATA->m_bpp == 0) + // use something reasonable + M_BMPDATA->m_bpp = wxTheApp->GetGdkVisual()->depth; PurgeOtherRepresentations(Pixbuf); } @@ -1338,84 +901,82 @@ void wxBitmap::PurgeOtherRepresentations(wxBitmap::Representation keep) void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) { - if (bpp != 32) - return NULL; - + void* bits = NULL; GdkPixbuf *pixbuf = GetPixbuf(); - if (!pixbuf) - return NULL; - -#if 0 - if (gdk_pixbuf_get_has_alpha( pixbuf )) - wxPrintf( wxT("Has alpha\n") ); - else - wxPrintf( wxT("No alpha.\n") ); -#endif - - data.m_height = gdk_pixbuf_get_height( pixbuf ); - data.m_width = gdk_pixbuf_get_width( pixbuf ); - data.m_stride = gdk_pixbuf_get_rowstride( pixbuf ); - - return gdk_pixbuf_get_pixels( pixbuf ); + const bool hasAlpha = HasAlpha(); + // allow access if bpp is valid and matches existence of alpha + if (pixbuf != NULL && ( + bpp == 24 && !hasAlpha || + bpp == 32 && hasAlpha)) + { + data.m_height = gdk_pixbuf_get_height( pixbuf ); + data.m_width = gdk_pixbuf_get_width( pixbuf ); + data.m_stride = gdk_pixbuf_get_rowstride( pixbuf ); + bits = gdk_pixbuf_get_pixels(pixbuf); + } + return bits; } void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data)) { } - bool wxBitmap::HasAlpha() const { - return HasPixbuf(); -} - -void wxBitmap::UseAlpha() -{ - GetPixbuf(); -} - -//----------------------------------------------------------------------------- -// wxBitmapHandler -//----------------------------------------------------------------------------- - -IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler,wxBitmapHandlerBase) - -wxBitmapHandler::~wxBitmapHandler() -{ + return m_refData != NULL && M_BMPDATA->m_pixbuf != NULL && + gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf); } -bool wxBitmapHandler::Create(wxBitmap * WXUNUSED(bitmap), - void * WXUNUSED(data), - long WXUNUSED(type), - int WXUNUSED(width), - int WXUNUSED(height), - int WXUNUSED(depth)) +wxObjectRefData* wxBitmap::CreateRefData() const { - wxFAIL_MSG( _T("not implemented") ); - - return false; + return new wxBitmapRefData; } -bool wxBitmapHandler::LoadFile(wxBitmap * WXUNUSED(bitmap), - const wxString& WXUNUSED(name), - long WXUNUSED(flags), - int WXUNUSED(desiredWidth), - int WXUNUSED(desiredHeight)) +wxObjectRefData* wxBitmap::CloneRefData(const wxObjectRefData* data) const { - wxFAIL_MSG( _T("not implemented") ); + const wxBitmapRefData* oldRef = wx_static_cast(const wxBitmapRefData*, data); + wxBitmapRefData* newRef = new wxBitmapRefData; + newRef->m_width = oldRef->m_width; + newRef->m_height = oldRef->m_height; + newRef->m_bpp = oldRef->m_bpp; + if (oldRef->m_pixmap != NULL) + { + newRef->m_pixmap = gdk_pixmap_new( + oldRef->m_pixmap, oldRef->m_width, oldRef->m_height, + // use pixmap depth, m_bpp may not match + gdk_drawable_get_depth(oldRef->m_pixmap)); + GdkGC* gc = gdk_gc_new(newRef->m_pixmap); + gdk_draw_drawable( + newRef->m_pixmap, gc, oldRef->m_pixmap, 0, 0, 0, 0, -1, -1); + g_object_unref(gc); + } + if (oldRef->m_pixbuf != NULL) + { + newRef->m_pixbuf = gdk_pixbuf_copy(oldRef->m_pixbuf); + } + if (oldRef->m_mask != NULL) + { + newRef->m_mask = new wxMask; + newRef->m_mask->m_bitmap = gdk_pixmap_new( + oldRef->m_mask->m_bitmap, oldRef->m_width, oldRef->m_height, 1); + GdkGC* gc = gdk_gc_new(newRef->m_mask->m_bitmap); + gdk_draw_drawable(newRef->m_mask->m_bitmap, + gc, oldRef->m_mask->m_bitmap, 0, 0, 0, 0, -1, -1); + g_object_unref(gc); + } +#if wxUSE_PALETTE + // implement this if SetPalette is ever implemented + wxASSERT(oldRef->m_palette == NULL); +#endif - return false; + return newRef; } -bool wxBitmapHandler::SaveFile(const wxBitmap * WXUNUSED(bitmap), - const wxString& WXUNUSED(name), - int WXUNUSED(type), - const wxPalette * WXUNUSED(palette)) -{ - wxFAIL_MSG( _T("not implemented") ); +//----------------------------------------------------------------------------- +// wxBitmapHandler +//----------------------------------------------------------------------------- - return false; -} +IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase) /* static */ void wxBitmap::InitStandardHandlers() {