X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c7deb4ab804ff6e7fd3eda9174556164e9da766e..8a31648287be0ef976f133de2786b137f1e98340:/src/gtk/bitmap.cpp?ds=sidebyside diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp index 3eca0eb586..ea8cf8d88f 100644 --- a/src/gtk/bitmap.cpp +++ b/src/gtk/bitmap.cpp @@ -13,52 +13,107 @@ #include "wx/bitmap.h" #ifndef WX_PRECOMP - #include "wx/app.h" - #include "wx/palette.h" #include "wx/icon.h" - #include "wx/math.h" #include "wx/image.h" + #include "wx/colour.h" #endif #include "wx/rawbmp.h" -#include +#include "wx/gtk/private/object.h" -//----------------------------------------------------------------------------- -// data -//----------------------------------------------------------------------------- +#include extern GtkWidget *wxGetRootWindow(); +static void PixmapToPixbuf(GdkPixmap* pixmap, GdkPixbuf* pixbuf, int w, int h) +{ + gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0, w, h); + if (gdk_drawable_get_depth(pixmap) == 1) + { + // invert to match XBM convention + guchar* p = gdk_pixbuf_get_pixels(pixbuf); + const int inc = 3 + int(gdk_pixbuf_get_has_alpha(pixbuf) != 0); + const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - w * inc; + for (int y = h; y; y--, p += rowpad) + for (int x = w; x; x--, p += inc) + { + // pixels are either (0,0,0) or (0xff,0xff,0xff) + p[0] = ~p[0]; + p[1] = ~p[1]; + p[2] = ~p[2]; + } + } +} + +static void MaskToAlpha(GdkPixmap* mask, GdkPixbuf* pixbuf, int w, int h) +{ + GdkPixbuf* mask_pixbuf = gdk_pixbuf_get_from_drawable( + NULL, mask, NULL, 0, 0, 0, 0, w, h); + guchar* p = gdk_pixbuf_get_pixels(pixbuf) + 3; + const guchar* mask_data = gdk_pixbuf_get_pixels(mask_pixbuf); + const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - w * 4; + const int mask_rowpad = gdk_pixbuf_get_rowstride(mask_pixbuf) - w * 3; + for (int y = h; y; y--, p += rowpad, mask_data += mask_rowpad) + { + for (int x = w; x; x--, p += 4, mask_data += 3) + { + *p = 255; + // no need to test all 3 components, + // pixels are either (0,0,0) or (0xff,0xff,0xff) + if (mask_data[0] == 0) + *p = 0; + } + } + g_object_unref(mask_pixbuf); +} + //----------------------------------------------------------------------------- // wxMask //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject) +IMPLEMENT_DYNAMIC_CLASS(wxMask, wxMaskBase) wxMask::wxMask() { - m_bitmap = (GdkBitmap *) NULL; + m_bitmap = NULL; +} + +wxMask::wxMask(const wxMask& mask) +{ + if ( !mask.m_bitmap ) + { + m_bitmap = NULL; + return; + } + + // create a copy of an existing mask + gint w, h; + gdk_drawable_get_size(mask.m_bitmap, &w, &h); + m_bitmap = gdk_pixmap_new(mask.m_bitmap, w, h, 1); + + wxGtkObject gc(gdk_gc_new(m_bitmap)); + gdk_draw_drawable(m_bitmap, gc, mask.m_bitmap, 0, 0, 0, 0, -1, -1); } wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour ) { - m_bitmap = (GdkBitmap *) NULL; - Create( bitmap, colour ); + m_bitmap = NULL; + InitFromColour(bitmap, colour); } #if wxUSE_PALETTE wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex ) { - m_bitmap = (GdkBitmap *) NULL; + m_bitmap = NULL; Create( bitmap, paletteIndex ); } #endif // wxUSE_PALETTE wxMask::wxMask( const wxBitmap& bitmap ) { - m_bitmap = (GdkBitmap *) NULL; - Create( bitmap ); + m_bitmap = NULL; + InitFromMonoBitmap(bitmap); } wxMask::~wxMask() @@ -67,15 +122,17 @@ wxMask::~wxMask() g_object_unref (m_bitmap); } -bool wxMask::Create( const wxBitmap& bitmap, - const wxColour& colour ) +void wxMask::FreeData() { if (m_bitmap) { g_object_unref (m_bitmap); - m_bitmap = (GdkBitmap*) NULL; + m_bitmap = NULL; } +} +bool wxMask::InitFromColour(const wxBitmap& bitmap, const wxColour& colour) +{ const int w = bitmap.GetWidth(); const int h = bitmap.GetHeight(); @@ -84,7 +141,7 @@ bool wxMask::Create( const wxBitmap& 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 white + // set bits are unmasked memset(out, 0xff, out_size); unsigned bit_index = 0; if (bitmap.HasPixbuf()) @@ -109,8 +166,11 @@ bool wxMask::Create( const wxBitmap& bitmap, { GdkImage* image = gdk_drawable_get_image(bitmap.GetPixmap(), 0, 0, w, h); GdkColormap* colormap = gdk_image_get_colormap(image); - guint32 mask_pixel = 1; - if (colormap != NULL) + 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 { wxColor c(colour); c.CalcPixel(colormap); @@ -130,29 +190,9 @@ bool wxMask::Create( const wxBitmap& bitmap, return true; } -#if wxUSE_PALETTE -bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex ) -{ - unsigned char r,g,b; - wxPalette *pal = bitmap.GetPalette(); - - wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") ); - - pal->GetRGB(paletteIndex, &r, &g, &b); - - return Create(bitmap, wxColour(r, g, b)); -} -#endif // wxUSE_PALETTE - -bool wxMask::Create( const wxBitmap& bitmap ) +bool wxMask::InitFromMonoBitmap(const wxBitmap& bitmap) { - if (m_bitmap) - { - g_object_unref (m_bitmap); - m_bitmap = (GdkBitmap*) NULL; - } - - if (!bitmap.Ok()) return false; + if (!bitmap.IsOk()) return false; wxCHECK_MSG( bitmap.GetDepth() == 1, false, wxT("Cannot create mask from colour bitmap") ); @@ -160,28 +200,29 @@ bool wxMask::Create( const wxBitmap& bitmap ) if (!m_bitmap) return false; - GdkGC *gc = gdk_gc_new( m_bitmap ); + wxGtkObject gc(gdk_gc_new( m_bitmap )); 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; } -GdkBitmap *wxMask::GetBitmap() const +GdkPixmap* wxMask::GetBitmap() const { return m_bitmap; } //----------------------------------------------------------------------------- -// wxBitmap +// wxBitmapRefData //----------------------------------------------------------------------------- -class wxBitmapRefData: public wxObjectRefData +class wxBitmapRefData: public wxGDIRefData { public: - wxBitmapRefData(); - ~wxBitmapRefData(); + wxBitmapRefData(int width, int height, int depth); + virtual ~wxBitmapRefData(); + + virtual bool IsOk() const; GdkPixmap *m_pixmap; GdkPixbuf *m_pixbuf; @@ -189,18 +230,27 @@ public: int m_width; int m_height; int m_bpp; - wxPalette *m_palette; + bool m_alphaRequested; + +private: + // We don't provide a copy ctor as copying m_pixmap and m_pixbuf properly + // is expensive and we don't want to do it implicitly (and possibly + // accidentally). wxBitmap::CloneGDIRefData() which does need to do it does + // it explicitly itself. + wxDECLARE_NO_COPY_CLASS(wxBitmapRefData); }; -wxBitmapRefData::wxBitmapRefData() +wxBitmapRefData::wxBitmapRefData(int width, int height, int depth) { - m_pixmap = (GdkPixmap *) NULL; - m_pixbuf = (GdkPixbuf *) NULL; - m_mask = (wxMask *) NULL; - m_width = 0; - m_height = 0; - m_bpp = 0; - m_palette = (wxPalette *) NULL; + m_pixmap = NULL; + m_pixbuf = NULL; + m_mask = NULL; + m_width = width; + m_height = height; + m_bpp = depth; + if (m_bpp < 0) + m_bpp = gdk_drawable_get_depth(wxGetRootWindow()->window); + m_alphaRequested = depth == 32; } wxBitmapRefData::~wxBitmapRefData() @@ -210,275 +260,78 @@ wxBitmapRefData::~wxBitmapRefData() if (m_pixbuf) g_object_unref (m_pixbuf); delete m_mask; -#if wxUSE_PALETTE - delete m_palette; -#endif // wxUSE_PALETTE +} + +bool wxBitmapRefData::IsOk() const +{ + return m_bpp != 0; } +//----------------------------------------------------------------------------- +// wxBitmap //----------------------------------------------------------------------------- -#define M_BMPDATA wx_static_cast(wxBitmapRefData*, m_refData) +#define M_BMPDATA static_cast(m_refData) IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) -wxBitmap::wxBitmap() -{ -} - -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 ) - { - return false; - } - - if (depth == 32) - { - SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height)); - M_BMPDATA->m_bpp = 32; - } - else + wxASSERT(depth == 1); + if (width > 0 && height > 0 && depth == 1) { - if (depth != 1) - { - const GdkVisual* visual = wxTheApp->GetGdkVisual(); - if (depth == -1) - depth = visual->depth; - - wxCHECK_MSG(depth == visual->depth, false, wxT("invalid bitmap depth")); - } - - SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth)); + SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height)); } - - return Ok(); } -bool wxBitmap::CreateFromXpm( const char **bits ) +wxBitmap::wxBitmap(const char* const* bits) { - UnRef(); + wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data")); - wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") ); + GdkBitmap* mask = NULL; + SetPixmap(gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, const_cast(bits))); + if (!M_BMPDATA) + return; - GdkBitmap *mask = (GdkBitmap*) NULL; - SetPixmap(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->m_bitmap = mask; } - - return true; } -wxBitmap wxBitmap::Rescale( int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy ) +wxBitmap::~wxBitmap() { - wxBitmap bmp; - - wxCHECK_MSG(Ok(), bmp, 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); - - if (HasPixbuf()) - { - bmp.SetDepth(GetDepth()); - bmp.SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, - true, //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); - } - else - { - GdkImage* img = gdk_drawable_get_image(GetPixmap(), 0, 0, GetWidth(), GetHeight()); - - wxCHECK_MSG(img, bmp, wxT("couldn't create image")); - - GdkGC *gc = NULL; - GdkPixmap *dstpix = NULL; - char *dst = NULL; - long dstbyteperline = 0; - - if (GetDepth() != 1) - { - GdkVisual *visual = gdk_drawable_get_visual( GetPixmap() ); - if (visual == NULL) - visual = wxTheApp->GetGdkVisual(); - - bmp = wxBitmap(width, height, visual->depth); - dstpix = bmp.GetPixmap(); - gc = gdk_gc_new( dstpix ); - } - else - { - dstbyteperline = (width + 7) / 8; - dst = (char*) malloc(dstbyteperline*height); - } - - // 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; - - 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; - } - - if ( dst ) - { - if (!pixval) - { - char bit=1; - char shift = bit << (w % 8); - outbyte |= shift; - } - - 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); - } - } - - // do not forget the last byte - if ( dst && (width % 8 != 0) ) - dst[h*dstbyteperline+width/8] = outbyte; - } - - g_object_unref (img); - if (gc) g_object_unref (gc); - - if ( dst ) - { - bmp = wxBitmap( (const char *)dst, width, height, 1 ); - free( dst ); - } - - if (GetMask()) - { - dstbyteperline = (width + 7) / 8; - dst = (char*) malloc(dstbyteperline*height); - img = gdk_drawable_get_image(GetMask()->GetBitmap(), 0, 0, GetWidth(), GetHeight()); - - for (int h = 0; h < height; h++) - { - char outbyte = 0; - int old_x = -1; - guint32 old_pixval = 0; - - 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; - } - - if (pixval) - { - char bit=1; - char shift = bit << (w % 8); - outbyte |= shift; - } - - if ((w+1)%8 == 0) - { - dst[h*dstbyteperline+w/8] = outbyte; - outbyte = 0; - } - } - - // 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); - - free( dst ); - g_object_unref (img); - } - - free( tablex ); - free( tabley ); - } +} - return bmp; +bool wxBitmap::Create( int width, int height, int depth ) +{ + UnRef(); + wxCHECK_MSG(width >= 0 && height >= 0, false, "invalid bitmap size"); + m_refData = new wxBitmapRefData(width, height, depth); + return true; } +#if wxUSE_IMAGE + bool wxBitmap::CreateFromImage(const wxImage& image, int depth) { UnRef(); - wxCHECK_MSG( image.Ok(), false, wxT("invalid image") ); - wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") ); + wxCHECK_MSG( image.IsOk(), false, wxT("invalid image") ); if (image.GetWidth() <= 0 || image.GetHeight() <= 0) return false; - if (depth == 1) - return CreateFromImageAsPixmap(image, depth); - - if (image.HasAlpha()) + if (depth == 32 || (depth == -1 && image.HasAlpha())) return CreateFromImageAsPixbuf(image); + // otherwise create pixmap, if alpha is present it will be converted to mask return CreateFromImageAsPixmap(image, depth); } @@ -493,7 +346,7 @@ bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth) // 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 white + // set bits are black memset(out, 0xff, out_size); const wxByte* in = image.GetData(); unsigned bit_index = 0; @@ -507,16 +360,21 @@ bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth) } SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h)); delete[] out; + + if (!M_BMPDATA) // SetPixmap may have failed + return false; } else { SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, w, h, depth)); - GdkGC* gc = gdk_gc_new(M_BMPDATA->m_pixmap); + if (!M_BMPDATA) + return false; + + wxGtkObject 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); } const wxByte* alpha = image.GetAlpha(); @@ -557,7 +415,7 @@ bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth) SetMask(mask); delete[] out; } - return true; + return IsOk(); } bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) @@ -565,36 +423,27 @@ bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) int width = image.GetWidth(); int height = image.GetHeight(); - GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, - true, //image.HasAlpha(), - 8 /* bits per sample */, - width, height); + Create(width, height, 32); + GdkPixbuf* pixbuf = GetPixbuf(); 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 ); - - SetDepth(wxTheApp->GetGdkVisual()->depth); - SetPixbuf(pixbuf); - // 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) + for (int x = 0; x < width; x++, out += 4, in += 3) { out[0] = in[0]; out[1] = in[1]; out[2] = in[2]; - out[3] = *alpha; + if (alpha) + out[3] = *alpha++; } } @@ -603,37 +452,39 @@ bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) wxImage wxBitmap::ConvertToImage() const { - wxImage image; - - wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), wxNullImage, wxT("invalid bitmap") ); const int w = GetWidth(); const int h = GetHeight(); - image.Create(w, h); + wxImage image(w, h, false); unsigned char *data = image.GetData(); 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) ); - - 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]; } } } @@ -643,12 +494,11 @@ wxImage wxBitmap::ConvertToImage() const GdkPixmap* pixmap_invert = NULL; if (GetDepth() == 1) { - // mono bitmaps are inverted + // 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); + wxGtkObject 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 @@ -660,161 +510,133 @@ wxImage wxBitmap::ConvertToImage() const 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); - if (GetMask()) + for (int y = 0; y < h; y++) { - // the colour used as transparent one in wxImage and the one it is - // replaced with when it really occurs in the bitmap - 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 x = 0; x < w; x++, data += 3) { - for (int x = 0; x < w; x++, data += 3) + if (gdk_image_get_pixel(image_mask, x, y) == 0) + { + data[0] = MASK_RED; + data[1] = MASK_GREEN; + data[2] = MASK_BLUE; + } + else if (data[0] == MASK_RED && data[1] == MASK_GREEN && data[2] == MASK_BLUE) { - if (gdk_image_get_pixel(image_mask, x, y) == 0) - { - data[0] = MASK_RED; - data[1] = MASK_GREEN; - data[2] = MASK_BLUE; - } - else if (data[0] == MASK_RED && data[1] == MASK_GREEN && data[2] == MASK_BLUE) - { - data[2] = MASK_BLUE_REPLACEMENT; - } + // we have to fudge the colour a bit to prevent + // this pixel from appearing transparent + data[2] = MASK_BLUE_REPLACEMENT; } } - g_object_unref(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 ) - { - SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height)); - - 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; -} - -bool wxBitmap::operator != ( const wxBitmap& bmp ) const -{ - return m_refData != bmp.m_refData; -} - -bool wxBitmap::Ok() const -{ - return (m_refData != NULL) && - ( - M_BMPDATA->m_pixbuf || - M_BMPDATA->m_pixmap - ); -} +#endif // wxUSE_IMAGE int wxBitmap::GetHeight() const { - wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), -1, wxT("invalid bitmap") ); return M_BMPDATA->m_height; } int wxBitmap::GetWidth() const { - wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), -1, wxT("invalid bitmap") ); return M_BMPDATA->m_width; } int wxBitmap::GetDepth() const { - wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), -1, wxT("invalid bitmap") ); return M_BMPDATA->m_bpp; } wxMask *wxBitmap::GetMask() const { - wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ); return M_BMPDATA->m_mask; } void wxBitmap::SetMask( wxMask *mask ) { - wxCHECK_RET( Ok(), wxT("invalid bitmap") ); - - if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; + wxCHECK_RET( IsOk(), wxT("invalid bitmap") ); + AllocExclusive(); + delete M_BMPDATA->m_mask; M_BMPDATA->m_mask = mask; } bool wxBitmap::CopyFromIcon(const wxIcon& icon) { *this = icon; - return Ok(); + return IsOk(); } wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const { wxBitmap ret; - 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), - ret, wxT("invalid bitmap or bitmap region") ); + wxCHECK_MSG(IsOk(), ret, wxT("invalid bitmap")); - if (HasPixbuf()) + const int w = rect.width; + const int h = rect.height; + const wxBitmapRefData* bmpData = M_BMPDATA; + + wxCHECK_MSG(rect.x >= 0 && rect.y >= 0 && + rect.x + w <= bmpData->m_width && + rect.y + h <= bmpData->m_height, + ret, wxT("invalid bitmap region")); + + wxBitmapRefData * const newRef = new wxBitmapRefData(w, h, bmpData->m_bpp); + ret.m_refData = newRef; + + if (bmpData->m_pixbuf) { - GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, - true, //gdk_pixbuf_get_has_alpha(GetPixbuf()), - 8, rect.width, rect.height); - ret.SetPixbuf(pixbuf); - ret.SetDepth(M_BMPDATA->m_bpp); - gdk_pixbuf_copy_area(GetPixbuf(), - rect.x, rect.y, rect.width, rect.height, - pixbuf, 0, 0); + GdkPixbuf* pixbuf = + gdk_pixbuf_new_subpixbuf(bmpData->m_pixbuf, rect.x, rect.y, w, h); + newRef->m_pixbuf = gdk_pixbuf_copy(pixbuf); + g_object_unref(pixbuf); } - else + if (bmpData->m_pixmap) { - ret = wxBitmap(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); + newRef->m_pixmap = gdk_pixmap_new(bmpData->m_pixmap, w, h, -1); + GdkGC* gc = gdk_gc_new(newRef->m_pixmap); + gdk_draw_drawable( + newRef->m_pixmap, gc, bmpData->m_pixmap, rect.x, rect.y, 0, 0, w, h); + g_object_unref(gc); } - - if (GetMask()) + if (bmpData->m_mask && bmpData->m_mask->m_bitmap) { - 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 ); - 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 ); + GdkPixmap* sub_mask = gdk_pixmap_new(bmpData->m_mask->m_bitmap, w, h, 1); + newRef->m_mask = new wxMask; + newRef->m_mask->m_bitmap = sub_mask; + GdkGC* gc = gdk_gc_new(sub_mask); + gdk_draw_drawable( + sub_mask, gc, bmpData->m_mask->m_bitmap, rect.x, rect.y, 0, 0, w, h); + g_object_unref(gc); } return ret; @@ -822,45 +644,50 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const { - wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") ); - // Try to save the bitmap via wxImage handlers: +#if wxUSE_IMAGE wxImage image = ConvertToImage(); - return image.Ok() && image.SaveFile(name, type); + if (image.IsOk() && image.SaveFile(name, type)) + return true; +#endif + const char* type_name = NULL; + switch (type) + { + case wxBITMAP_TYPE_BMP: type_name = "bmp"; break; + case wxBITMAP_TYPE_ICO: type_name = "ico"; break; + case wxBITMAP_TYPE_JPEG: type_name = "jpeg"; break; + case wxBITMAP_TYPE_PNG: type_name = "png"; break; + default: break; + } + return type_name && + gdk_pixbuf_save(GetPixbuf(), name.fn_str(), type_name, NULL, NULL); } bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type ) { - UnRef(); - - if (type == wxBITMAP_TYPE_XPM) +#if wxUSE_IMAGE + wxImage image; + if (image.LoadFile(name, type) && image.IsOk()) + *this = wxBitmap(image); + else +#endif { - GdkBitmap *mask = (GdkBitmap*) NULL; - SetPixmap(gdk_pixmap_create_from_xpm(wxGetRootWindow()->window, &mask, NULL, name.fn_str())); + wxUnusedVar(type); // The type is detected automatically by GDK. - if (mask) - { - M_BMPDATA->m_mask = new wxMask; - M_BMPDATA->m_mask->m_bitmap = mask; - } - } - else // try if wxImage can load it - { - wxImage image; - if (image.LoadFile(name, type) && image.Ok()) - *this = wxBitmap(image); + UnRef(); + GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file(name.fn_str(), NULL); + if (pixbuf) + SetPixbuf(pixbuf); } - return Ok(); + return IsOk(); } #if wxUSE_PALETTE wxPalette *wxBitmap::GetPalette() const { - if (!Ok()) - return (wxPalette *) NULL; - - return M_BMPDATA->m_palette; + return NULL; } void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette)) @@ -871,133 +698,116 @@ 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; - - 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); + UnRef(); + + if (!pixmap) + return; + + int w, h; + gdk_drawable_get_size(pixmap, &w, &h); + wxBitmapRefData* bmpData = new wxBitmapRefData(w, h, 0); + m_refData = bmpData; + bmpData->m_pixmap = pixmap; + bmpData->m_bpp = gdk_drawable_get_depth(pixmap); } GdkPixmap *wxBitmap::GetPixmap() const { - wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ); - // create the pixmap on the fly if we use Pixbuf representation: - if (M_BMPDATA->m_pixmap == NULL) + wxBitmapRefData* bmpData = M_BMPDATA; + if (bmpData->m_pixmap) + return bmpData->m_pixmap; + + if (bmpData->m_pixbuf) { - delete M_BMPDATA->m_mask; - M_BMPDATA->m_mask = new wxMask; - gdk_pixbuf_render_pixmap_and_mask(M_BMPDATA->m_pixbuf, - &M_BMPDATA->m_pixmap, - &M_BMPDATA->m_mask->m_bitmap, - 128 /*threshold*/); + GdkPixmap** mask_pixmap = NULL; + if (gdk_pixbuf_get_has_alpha(bmpData->m_pixbuf)) + { + // make new mask from alpha + delete bmpData->m_mask; + bmpData->m_mask = new wxMask; + mask_pixmap = &bmpData->m_mask->m_bitmap; + } + gdk_pixbuf_render_pixmap_and_mask( + bmpData->m_pixbuf, &bmpData->m_pixmap, mask_pixmap, 128); } - - return M_BMPDATA->m_pixmap; + else + { + bmpData->m_pixmap = gdk_pixmap_new(wxGetRootWindow()->window, + bmpData->m_width, bmpData->m_height, bmpData->m_bpp == 1 ? 1 : -1); + } + return bmpData->m_pixmap; } bool wxBitmap::HasPixmap() const { - wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") ); return M_BMPDATA->m_pixmap != NULL; } GdkPixbuf *wxBitmap::GetPixbuf() const { - wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); - - if (M_BMPDATA->m_pixbuf == NULL) - { - int width = GetWidth(); - int height = GetHeight(); - - // always create the alpha channel so raw bitmap access will work - // correctly - GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, - true, // 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); - - // apply the mask to created pixbuf: - if (M_BMPDATA->m_pixbuf && M_BMPDATA->m_mask) - { - GdkPixbuf *pmask = - gdk_pixbuf_get_from_drawable(NULL, - M_BMPDATA->m_mask->GetBitmap(), - NULL, - 0, 0, 0, 0, width, height); - if (pmask) - { - guchar *bmp = gdk_pixbuf_get_pixels(pixbuf); - guchar *mask = gdk_pixbuf_get_pixels(pmask); - int bmprowinc = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width; - int maskrowinc = gdk_pixbuf_get_rowstride(pmask) - 3 * width; - - for (int y = 0; y < height; - y++, bmp += bmprowinc, mask += maskrowinc) - { - for (int x = 0; x < width; x++, bmp += 4, mask += 3) - { - if (mask[0] == 0 /*black pixel*/) - bmp[3] = 0; - } - } - - g_object_unref (pmask); - } - } - } - - return M_BMPDATA->m_pixbuf; + wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ); + + wxBitmapRefData* bmpData = M_BMPDATA; + if (bmpData->m_pixbuf) + return bmpData->m_pixbuf; + + const int w = bmpData->m_width; + const int h = bmpData->m_height; + GdkPixmap* mask = NULL; + if (bmpData->m_mask) + mask = bmpData->m_mask->m_bitmap; + const bool useAlpha = bmpData->m_alphaRequested || mask; + bmpData->m_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, useAlpha, 8, w, h); + if (bmpData->m_pixmap) + PixmapToPixbuf(bmpData->m_pixmap, bmpData->m_pixbuf, w, h); + if (mask) + MaskToAlpha(mask, bmpData->m_pixbuf, w, h); + return bmpData->m_pixbuf; } bool wxBitmap::HasPixbuf() const { - wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") ); return M_BMPDATA->m_pixbuf != NULL; } -void wxBitmap::SetPixbuf( GdkPixbuf *pixbuf ) +void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf) { - if (!m_refData) - m_refData = new wxBitmapRefData; + UnRef(); + + if (!pixbuf) + return; + + int depth = -1; + if (gdk_pixbuf_get_has_alpha(pixbuf)) + depth = 32; + m_refData = new wxBitmapRefData( + gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf), depth); - 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); - PurgeOtherRepresentations(Pixbuf); } void wxBitmap::PurgeOtherRepresentations(wxBitmap::Representation keep) @@ -1014,88 +824,67 @@ void wxBitmap::PurgeOtherRepresentations(wxBitmap::Representation keep) } } +#ifdef wxHAS_RAW_BITMAP void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) { - if (bpp != 32) - return NULL; - + void* bits = NULL; GdkPixbuf *pixbuf = GetPixbuf(); - if (!pixbuf) - return NULL; - - if (!gdk_pixbuf_get_has_alpha( pixbuf )) - return NULL; - -#if 0 - if (gdk_pixbuf_get_has_alpha( pixbuf )) - wxPrintf( wxT("Has alpha, %d channels\n"), gdk_pixbuf_get_n_channels(pixbuf) ); - else - wxPrintf( wxT("No alpha, %d channels.\n"), gdk_pixbuf_get_n_channels(pixbuf) ); -#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 ); + const bool hasAlpha = HasAlpha(); - return gdk_pixbuf_get_pixels( pixbuf ); + // allow access if bpp is valid and matches existence of alpha + if ( pixbuf && ((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)) { } - +#endif // wxHAS_RAW_BITMAP bool wxBitmap::HasAlpha() const { - return HasPixbuf(); -} - -void wxBitmap::UseAlpha() -{ - GetPixbuf(); -} - -//----------------------------------------------------------------------------- -// wxBitmapHandler -//----------------------------------------------------------------------------- - -IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler,wxBitmapHandlerBase) - -wxBitmapHandler::~wxBitmapHandler() -{ -} - -bool wxBitmapHandler::Create(wxBitmap * WXUNUSED(bitmap), - void * WXUNUSED(data), - long WXUNUSED(type), - int WXUNUSED(width), - int WXUNUSED(height), - int WXUNUSED(depth)) -{ - wxFAIL_MSG( _T("not implemented") ); - - return false; + const wxBitmapRefData* bmpData = M_BMPDATA; + return bmpData && (bmpData->m_alphaRequested || + (bmpData->m_pixbuf && gdk_pixbuf_get_has_alpha(bmpData->m_pixbuf))); } -bool wxBitmapHandler::LoadFile(wxBitmap * WXUNUSED(bitmap), - const wxString& WXUNUSED(name), - long WXUNUSED(flags), - int WXUNUSED(desiredWidth), - int WXUNUSED(desiredHeight)) +wxGDIRefData* wxBitmap::CreateGDIRefData() const { - wxFAIL_MSG( _T("not implemented") ); - - return false; + return new wxBitmapRefData(0, 0, 0); } -bool wxBitmapHandler::SaveFile(const wxBitmap * WXUNUSED(bitmap), - const wxString& WXUNUSED(name), - int WXUNUSED(type), - const wxPalette * WXUNUSED(palette)) +wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const { - wxFAIL_MSG( _T("not implemented") ); + const wxBitmapRefData* oldRef = static_cast(data); + wxBitmapRefData * const newRef = new wxBitmapRefData(oldRef->m_width, + oldRef->m_height, + 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)); + wxGtkObject gc(gdk_gc_new(newRef->m_pixmap)); + gdk_draw_drawable( + newRef->m_pixmap, gc, oldRef->m_pixmap, 0, 0, 0, 0, -1, -1); + } + if (oldRef->m_pixbuf != NULL) + { + newRef->m_pixbuf = gdk_pixbuf_copy(oldRef->m_pixbuf); + } + if (oldRef->m_mask != NULL) + { + newRef->m_mask = new wxMask(*oldRef->m_mask); + } - return false; + return newRef; } /* static */ void wxBitmap::InitStandardHandlers()