X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/33d0b396b23cc198d6966d2ae4bd03762821e56c..bf6c0db6243368ee239563a1151156beb5b848fa:/src/gtk/bitmap.cpp diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp index d2241e591d..fcc84f7786 100644 --- a/src/gtk/bitmap.cpp +++ b/src/gtk/bitmap.cpp @@ -1,397 +1,1108 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: bitmap.cpp +// Name: src/gtk/bitmap.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Copyright: (c) 1998 Robert Roebling +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "bitmap.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/bitmap.h" -#include "gdk/gdkprivate.h" -#ifdef USE_GDK_IMLIB -#include "../gdk_imlib/gdk_imlib.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 + +//----------------------------------------------------------------------------- +// data +//----------------------------------------------------------------------------- + +extern GtkWidget *wxGetRootWindow(); + //----------------------------------------------------------------------------- // wxMask //----------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject) -wxMask::wxMask(void) +wxMask::wxMask() { - m_bitmap = NULL; -}; + m_bitmap = (GdkBitmap *) NULL; +} -wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour) ) +wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour ) { -}; + m_bitmap = (GdkBitmap *) NULL; + Create( bitmap, colour ); +} -wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex) ) +#if wxUSE_PALETTE +wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex ) { -}; + m_bitmap = (GdkBitmap *) NULL; + Create( bitmap, paletteIndex ); +} +#endif // wxUSE_PALETTE -wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap) ) +wxMask::wxMask( const wxBitmap& bitmap ) { -}; + m_bitmap = (GdkBitmap *) NULL; + Create( bitmap ); +} -wxMask::~wxMask(void) +wxMask::~wxMask() { -#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) + g_object_unref (m_bitmap); +} -GdkBitmap *wxMask::GetBitmap(void) const +bool wxMask::Create( const wxBitmap& bitmap, + const wxColour& colour ) { - return m_bitmap; -}; - + if (m_bitmap) + { + g_object_unref (m_bitmap); + m_bitmap = (GdkBitmap*) NULL; + } + + 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; + } + } + else + { + 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 + { + wxColor c(colour); + c.CalcPixel(colormap); + mask_pixel = c.GetPixel(); + } + 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); + } + m_bitmap = gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h); + delete[] out; + 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 ) +{ + if (m_bitmap) + { + g_object_unref (m_bitmap); + m_bitmap = (GdkBitmap*) NULL; + } + + if (!bitmap.Ok()) return false; + + wxCHECK_MSG( bitmap.GetDepth() == 1, false, wxT("Cannot create mask from colour bitmap") ); + + m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bitmap.GetWidth(), bitmap.GetHeight(), 1 ); + + if (!m_bitmap) return false; + + GdkGC *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 +{ + return m_bitmap; +} + //----------------------------------------------------------------------------- // wxBitmap //----------------------------------------------------------------------------- -// CMB 20/5/98: added m_bitmap for GdkBitmaps class wxBitmapRefData: public wxObjectRefData { - public: - - wxBitmapRefData(void); - ~wxBitmapRefData(void); - +public: + wxBitmapRefData(); + virtual ~wxBitmapRefData(); + GdkPixmap *m_pixmap; - GdkBitmap *m_bitmap; + GdkPixbuf *m_pixbuf; wxMask *m_mask; int m_width; int m_height; int m_bpp; -#ifdef USE_GDK_IMLIB - GdkImlibImage *m_image; -#endif 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; -#ifdef USE_GDK_IMLIB - m_image = NULL; -#endif -}; +wxBitmapRefData::wxBitmapRefData() +{ + 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; +} -wxBitmapRefData::~wxBitmapRefData(void) +wxBitmapRefData::~wxBitmapRefData() { -#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) + g_object_unref (m_pixmap); + if (m_pixbuf) + g_object_unref (m_pixbuf); + delete m_mask; +#if wxUSE_PALETTE + delete m_palette; +#endif // wxUSE_PALETTE +} //----------------------------------------------------------------------------- -#define M_BMPDATA ((wxBitmapRefData *)m_refData) +#define M_BMPDATA wx_static_cast(wxBitmapRefData*, m_refData) IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) -wxBitmap::wxBitmap(void) +wxBitmap::wxBitmap() { - 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 ); - M_BMPDATA->m_width = width; - M_BMPDATA->m_height = height; - M_BMPDATA->m_bpp = depth; - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; + Create( width, height, depth ); +} -wxBitmap::wxBitmap( char **bits ) -{ - m_refData = new wxBitmapRefData(); - -#ifndef USE_GDK_IMLIB - - GdkBitmap *mask = NULL; - - M_BMPDATA->m_pixmap = - gdk_pixmap_create_from_xpm_d( (GdkWindow*) &gdk_root_parent, &mask, NULL, (gchar **) bits ); - - 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) ); - -#else - - M_BMPDATA->m_image = gdk_imlib_create_image_from_xpm_data( bits ); - Render(); - -#endif - - M_BMPDATA->m_bpp = 24; // ? - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; - -wxBitmap::wxBitmap( const wxBitmap& bmp ) +bool wxBitmap::Create( int width, int height, int depth ) { - Ref( bmp ); - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; - -wxBitmap::wxBitmap( const wxBitmap* bmp ) + 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 + { + 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)); + } + + return Ok(); +} + +bool wxBitmap::CreateFromXpm( const char **bits ) { - if (bmp) Ref( *bmp ); - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; + UnRef(); + + wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") ); + + 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") ); -wxBitmap::wxBitmap( const wxString &filename, int type ) + if (mask) + { + 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 ) { - LoadFile( filename, type ); -}; + 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::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") ); + + if (image.GetWidth() <= 0 || image.GetHeight() <= 0) + return false; + + if (depth == 1) + return CreateFromImageAsPixmap(image, depth); + + if (image.HasAlpha()) + return CreateFromImageAsPixbuf(image); + + 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) + { + // 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 + { + 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); + } + + const wxByte* alpha = image.GetAlpha(); + if (alpha != NULL || image.HasMask()) + { + // create mask as XBM format bitmap + + 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) + { + for (int y = 0; y < h; y++) + { + 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; + } + } + else + { + 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) +{ + 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); + 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(32); + SetPixbuf(pixbuf); + + // Copy the data: + 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; + + for (int y = 0; y < height; y++, out += rowinc) + { + for (int x = 0; x < width; x++, alpha++, out += 4, in += 3) + { + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + out[3] = *alpha; + } + } + + return true; +} + +wxImage wxBitmap::ConvertToImage() const +{ + wxImage image; + + wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); + + const int w = GetWidth(); + const int h = GetHeight(); + image.Create(w, h); + unsigned char *data = image.GetData(); + + wxCHECK_MSG(data != NULL, wxNullImage, wxT("couldn't create image") ); + + 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 *out = data; + int rowinc = gdk_pixbuf_get_rowstride(pixbuf) - 4 * w; + + for (int y = 0; y < h; y++, in += rowinc) + { + for (int x = 0; x < w; x++, in += 4, out += 3, alpha++) + { + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + *alpha = in[3]; + } + } + } + else + { + GdkPixmap* pixmap = GetPixmap(); + GdkPixmap* pixmap_invert = NULL; + if (GetDepth() == 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); + + g_object_unref(pixbuf); + if (pixmap_invert != NULL) + g_object_unref(pixmap_invert); + + if (GetMask()) + { + // 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) + { + 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; + } + } + } + g_object_unref(image_mask); + } + } + + return image; +} + +wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type ) +{ + LoadFile( filename, type ); +} -// 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(); + if ( width > 0 && height > 0 ) + { + SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height)); - M_BMPDATA->m_mask = 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; + wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") ); + } +} - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); +wxBitmap::~wxBitmap() +{ } - -wxBitmap::~wxBitmap(void) + +bool wxBitmap::operator == ( const wxBitmap& bmp ) const { - if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this); -}; - -wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp ) + return m_refData == bmp.m_refData; +} + +bool wxBitmap::operator != ( const wxBitmap& bmp ) const { - if (*this == bmp) return (*this); - Ref( bmp ); - return *this; -}; - -bool wxBitmap::operator == ( const wxBitmap& bmp ) + return m_refData != bmp.m_refData; +} + +bool wxBitmap::Ok() const { - return m_refData == bmp.m_refData; -}; - -bool wxBitmap::operator != ( const wxBitmap& bmp ) + return (m_refData != NULL) && + ( + M_BMPDATA->m_pixbuf || + M_BMPDATA->m_pixmap + ); +} + +int wxBitmap::GetHeight() const { - return m_refData != bmp.m_refData; -}; - -bool wxBitmap::Ok(void) const + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_height; +} + +int wxBitmap::GetWidth() const { - return m_refData != NULL; -}; - -int wxBitmap::GetHeight(void) const + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_width; +} + +int wxBitmap::GetDepth() const { - if (!Ok()) return 0; - return M_BMPDATA->m_height; -}; + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); -int wxBitmap::GetWidth(void) const + return M_BMPDATA->m_bpp; +} + +wxMask *wxBitmap::GetMask() const { - if (!Ok()) return 0; - return M_BMPDATA->m_width; -}; + wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); + + return M_BMPDATA->m_mask; +} -int wxBitmap::GetDepth(void) const +void wxBitmap::SetMask( wxMask *mask ) { - if (!Ok()) return 0; - return M_BMPDATA->m_bpp; -}; + wxCHECK_RET( Ok(), wxT("invalid bitmap") ); + + if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; + + M_BMPDATA->m_mask = mask; +} + +bool wxBitmap::CopyFromIcon(const wxIcon& icon) +{ + *this = icon; + return Ok(); +} + +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") ); + + if (HasPixbuf()) + { + 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); + } + else + { + 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); + } + + if (GetMask()) + { + 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 ); + } + + return ret; +} + +bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const +{ + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + + // Try to save the bitmap via wxImage handlers: + wxImage image = ConvertToImage(); + return image.Ok() && image.SaveFile(name, type); +} + +bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type ) +{ + UnRef(); + + if (type == wxBITMAP_TYPE_XPM) + { + GdkBitmap *mask = (GdkBitmap*) NULL; + 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; + } + } + else // try if wxImage can load it + { + wxImage image; + if (image.LoadFile(name, type) && image.Ok()) + *this = wxBitmap(image); + } + + return Ok(); +} + +#if wxUSE_PALETTE +wxPalette *wxBitmap::GetPalette() const +{ + if (!Ok()) + return (wxPalette *) NULL; + + return M_BMPDATA->m_palette; +} + +void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette)) +{ + // TODO +} +#endif // wxUSE_PALETTE void wxBitmap::SetHeight( int height ) { - if (!Ok()) return; - M_BMPDATA->m_height = height; -}; + if (!m_refData) + m_refData = new wxBitmapRefData; + + M_BMPDATA->m_height = height; +} void wxBitmap::SetWidth( int width ) { - if (!Ok()) return; - M_BMPDATA->m_width = width; -}; + if (!m_refData) + m_refData = new wxBitmapRefData; + + M_BMPDATA->m_width = width; +} void wxBitmap::SetDepth( int depth ) { - if (!Ok()) return; - M_BMPDATA->m_bpp = depth; -}; + if (!m_refData) + m_refData = new wxBitmapRefData; + + M_BMPDATA->m_bpp = depth; +} -wxMask *wxBitmap::GetMask(void) const +void wxBitmap::SetPixmap( GdkPixmap *pixmap ) { - if (!Ok()) return NULL; - - return M_BMPDATA->m_mask; -}; + if (!m_refData) + m_refData = new wxBitmapRefData; -void wxBitmap::SetMask( wxMask *mask ) + 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); +} + +GdkPixmap *wxBitmap::GetPixmap() const { - if (!Ok()) return; - - if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; - M_BMPDATA->m_mask = mask; -}; + wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") ); -void wxBitmap::Resize( int height, int width ) -{ - if (!Ok()) return; - -#ifdef USE_GDK_IMLIB - - 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 -}; + // create the pixmap on the fly if we use Pixbuf representation: + if (M_BMPDATA->m_pixmap == NULL) + { + 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*/); + } + + return M_BMPDATA->m_pixmap; +} -bool wxBitmap::SaveFile( const wxString &name, int WXUNUSED(type), - wxPalette *WXUNUSED(palette) ) +bool wxBitmap::HasPixmap() const { -#ifdef USE_GDK_IMLIB + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); - if (!Ok()) return FALSE; - - if (!M_BMPDATA->m_image) RecreateImage(); - - return gdk_imlib_save_image( M_BMPDATA->m_image, WXSTRINGCAST name, NULL ); + return M_BMPDATA->m_pixmap != NULL; +} -#endif +GdkPixbuf *wxBitmap::GetPixbuf() const +{ + wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); - return FALSE; -}; + if (M_BMPDATA->m_pixbuf == NULL) + { + int width = GetWidth(); + int height = GetHeight(); -bool wxBitmap::LoadFile( const wxString &name, int WXUNUSED(type) ) + // 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; +} + +bool wxBitmap::HasPixbuf() const { -#ifdef USE_GDK_IMLIB + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); - UnRef(); - m_refData = new wxBitmapRefData(); - - M_BMPDATA->m_image = gdk_imlib_load_image( WXSTRINGCAST name ); + return M_BMPDATA->m_pixbuf != NULL; +} - 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; // ? - - return TRUE; +void wxBitmap::SetPixbuf( GdkPixbuf *pixbuf ) +{ + if (!m_refData) + m_refData = new wxBitmapRefData; + + 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) +{ + if (keep == Pixmap && HasPixbuf()) + { + g_object_unref (M_BMPDATA->m_pixbuf); + M_BMPDATA->m_pixbuf = NULL; + } + if (keep == Pixbuf && HasPixmap()) + { + g_object_unref (M_BMPDATA->m_pixmap); + M_BMPDATA->m_pixmap = NULL; + } +} + +void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) +{ + if (bpp != 32) + return 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 - return FALSE; -}; - -wxPalette *wxBitmap::GetPalette(void) const + 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 ); +} + +void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data)) { - if (!Ok()) return NULL; - return M_BMPDATA->m_palette; -}; +} + -GdkPixmap *wxBitmap::GetPixmap(void) const +bool wxBitmap::HasAlpha() const { - if (!Ok()) return NULL; - return M_BMPDATA->m_pixmap; -}; - -GdkBitmap *wxBitmap::GetBitmap(void) const + return HasPixbuf(); +} + +void wxBitmap::UseAlpha() { - if (!Ok()) return NULL; - - return M_BMPDATA->m_bitmap; -}; - -void wxBitmap::DestroyImage(void) -{ - if (!Ok()) return; - - if (M_BMPDATA->m_image) - { - gdk_imlib_destroy_image( M_BMPDATA->m_image ); - M_BMPDATA->m_image = NULL; - }; -}; + GetPixbuf(); +} + +//----------------------------------------------------------------------------- +// wxBitmapHandler +//----------------------------------------------------------------------------- -void wxBitmap::RecreateImage(void) +IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler,wxBitmapHandlerBase) + +wxBitmapHandler::~wxBitmapHandler() { -}; +} -void wxBitmap::Render(void) -{ - if (!Ok()) return; - -#ifdef USE_GDK_IMLIB - - gdk_imlib_render( M_BMPDATA->m_image, M_BMPDATA->m_image->rgb_width, M_BMPDATA->m_image->rgb_height ); - M_BMPDATA->m_width = M_BMPDATA->m_image->rgb_width; - M_BMPDATA->m_height = M_BMPDATA->m_image->rgb_height; - 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; - }; - -#endif -}; +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; +} +bool wxBitmapHandler::LoadFile(wxBitmap * WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + long WXUNUSED(flags), + int WXUNUSED(desiredWidth), + int WXUNUSED(desiredHeight)) +{ + wxFAIL_MSG( _T("not implemented") ); + return false; +} + +bool wxBitmapHandler::SaveFile(const wxBitmap * WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + int WXUNUSED(type), + const wxPalette * WXUNUSED(palette)) +{ + wxFAIL_MSG( _T("not implemented") ); + + return false; +} + +/* static */ void wxBitmap::InitStandardHandlers() +{ + // TODO: Insert handler based on GdkPixbufs handler later +}