X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1f0299c17dc878540bf190c290392db241b425ad..593354ca47abaae8a434f99642acc57f7834f77b:/src/gtk/bitmap.cpp diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp index 845a1fcf00..91aa96accf 100644 --- a/src/gtk/bitmap.cpp +++ b/src/gtk/bitmap.cpp @@ -1,317 +1,980 @@ ///////////////////////////////////////////////////////////////////////////// -// 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), const 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); +} + +bool wxMask::Create( const wxBitmap& bitmap, + const wxColour& colour ) +{ + 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; +} -GdkBitmap *wxMask::GetBitmap(void) const +#if wxUSE_PALETTE +bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex ) { - return m_bitmap; -}; - + 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 +class wxBitmapRefData: public wxGDIRefData { - public: - - wxBitmapRefData(void); - ~wxBitmapRefData(void); - +public: + wxBitmapRefData(); + virtual ~wxBitmapRefData(); + + virtual bool IsOk() const { return m_pixmap || m_pixbuf; } + GdkPixmap *m_pixmap; - GdkBitmap *m_bitmap; + GdkPixbuf *m_pixbuf; wxMask *m_mask; int m_width; int m_height; int m_bpp; +#if wxUSE_PALETTE wxPalette *m_palette; +#endif // wxUSE_PALETTE }; -wxBitmapRefData::wxBitmapRefData(void) +wxBitmapRefData::wxBitmapRefData() { - m_pixmap = NULL; - m_bitmap = NULL; - m_mask = NULL; - m_width = 0; - m_height = 0; - m_bpp = 0; - m_palette = NULL; -}; + m_pixmap = (GdkPixmap *) NULL; + m_pixbuf = (GdkPixbuf *) NULL; + m_mask = (wxMask *) NULL; + m_width = 0; + m_height = 0; + m_bpp = 0; +#if wxUSE_PALETTE + m_palette = (wxPalette *) NULL; +#endif // wxUSE_PALETTE +} -wxBitmapRefData::~wxBitmapRefData(void) +wxBitmapRefData::~wxBitmapRefData() { -#ifdef USE_GDK_IMLIB - if (m_pixmap) gdk_imlib_free_pixmap( m_pixmap ); -#else - if (m_pixmap) gdk_pixmap_unref( m_pixmap ); - if (m_bitmap) gdk_bitmap_unref( m_bitmap ); -#endif - 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(int width, int height, int depth) { - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; - -wxBitmap::wxBitmap( const int width, const int height, const int depth ) -{ - m_refData = new wxBitmapRefData(); - M_BMPDATA->m_mask = NULL; - M_BMPDATA->m_pixmap = - gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, width, height, depth ); - gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - M_BMPDATA->m_bpp = depth; - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; + Create(width, height, depth); +} -wxBitmap::wxBitmap( char **bits ) +wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type) { - m_refData = new wxBitmapRefData(); - - GdkBitmap *mask = NULL; + LoadFile(filename, type); +} -#ifndef USE_GDK_IMLIB - M_BMPDATA->m_pixmap = - gdk_pixmap_create_from_xpm_d( (GdkWindow*) &gdk_root_parent, &mask, NULL, (gchar **) bits ); -#else - M_BMPDATA->m_pixmap = NULL; - int res = gdk_imlib_data_to_pixmap( bits, &M_BMPDATA->m_pixmap, &mask ); -#endif - - if (mask) - { - M_BMPDATA->m_mask = new wxMask(); - M_BMPDATA->m_mask->m_bitmap = mask; - }; - - gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - M_BMPDATA->m_bpp = 24; // ? - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; - -wxBitmap::wxBitmap( const wxBitmap& bmp ) +wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) { - Ref( bmp ); - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; - -wxBitmap::wxBitmap( const wxBitmap* bmp ) + wxASSERT(depth == 1); + if (width > 0 && height > 0 && depth == 1) + { + SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height)); + + wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") ); + } +} + +wxBitmap::wxBitmap(const char* const* bits) { - if (bmp) Ref( *bmp ); - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; + wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data")); + + GdkBitmap* mask = NULL; + SetPixmap(gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, wx_const_cast(char**, bits))); + + if (M_BMPDATA->m_pixmap != NULL && mask != NULL) + { + M_BMPDATA->m_mask = new wxMask; + M_BMPDATA->m_mask->m_bitmap = mask; + } +} -wxBitmap::wxBitmap( const wxString &filename, const int type ) +wxBitmap::~wxBitmap() { - LoadFile( filename, type ); -}; +} -// CMB 15/5/98: add constructor for xbm bitmaps -wxBitmap::wxBitmap( const char bits[], const int width, const int height, const int WXUNUSED(depth)) +bool wxBitmap::Create( int width, int height, int depth ) { - m_refData = new wxBitmapRefData(); + UnRef(); - M_BMPDATA->m_mask = NULL; - M_BMPDATA->m_bitmap = - gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height ); - gdk_window_get_size( M_BMPDATA->m_bitmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - M_BMPDATA->m_bpp = 1; + if ( width <= 0 || height <= 0 ) + { + return false; + } + + if (depth == 32) + { + SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 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(); +} - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); +wxBitmap wxBitmap::Rescale(int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy) const +{ + wxBitmap bmp; + + wxCHECK_MSG(Ok(), bmp, wxT("invalid bitmap")); + + int width = wxMax(newx, 1); + int height = wxMax(newy, 1); + width = wxMin(width, clipwidth); + height = wxMin(height, clipheight); + + const double scale_x = double(newx) / M_BMPDATA->m_width; + const double scale_y = double(newy) / M_BMPDATA->m_height; + + // Converting to pixbuf, scaling with gdk_pixbuf_scale, and converting + // back, is faster than scaling pixmap ourselves. + + // 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); + + // new pixbuf for scaled wxBitmap + GdkPixbuf* pixbuf_scaled = gdk_pixbuf_new( + GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf), 8, width, height); + + // 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); + + g_object_unref(pixbuf); + bmp.SetPixbuf(pixbuf_scaled, M_BMPDATA->m_bpp); + + 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); + + pixbuf_scaled = gdk_pixbuf_new( + GDK_COLORSPACE_RGB, false, 8, width, height); + + gdk_pixbuf_scale( + pixbuf, pixbuf_scaled, + 0, 0, width, height, -clipx, -clipy, scale_x, scale_y, + GDK_INTERP_NEAREST); + + 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; } - -wxBitmap::~wxBitmap(void) + +#if wxUSE_IMAGE + +bool wxBitmap::CreateFromImage(const wxImage& image, int depth) { - if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this); -}; - -wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp ) + 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; + + // 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) + { + // 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) { - if (*this == bmp) return (*this); - Ref( bmp ); - return *this; -}; - -bool wxBitmap::operator == ( const wxBitmap& bmp ) + wxASSERT(image.HasAlpha()); + + int width = image.GetWidth(); + int height = image.GetHeight(); + + Create(width, height, 32); + GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf; + if (!pixbuf) + return false; + + // Copy the data: + const unsigned char* in = image.GetData(); + unsigned char *out = gdk_pixbuf_get_pixels(pixbuf); + unsigned char *alpha = image.GetAlpha(); + + int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width; + + for (int y = 0; y < height; y++, out += rowpad) + { + 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 +{ + wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); + + const int w = GetWidth(); + const int h = GetHeight(); + 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(); + 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; + 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 += rowpad) + { + for (int x = 0; x < w; x++, in += inc, out += 3) + { + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + if (alpha != NULL) + *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); + } + // 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 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) + { + // 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); + } + + return image; +} + +#endif // wxUSE_IMAGE + +int wxBitmap::GetHeight() const { - return m_refData == bmp.m_refData; -}; - -bool wxBitmap::operator != ( const wxBitmap& bmp ) + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_height; +} + +int wxBitmap::GetWidth() const { - return m_refData != bmp.m_refData; -}; - -bool wxBitmap::Ok(void) const + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_width; +} + +int wxBitmap::GetDepth() const { - return m_refData != NULL; -}; - -int wxBitmap::GetHeight(void) const + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_bpp; +} + +wxMask *wxBitmap::GetMask() const { - if (!Ok()) return 0; - return M_BMPDATA->m_height; -}; + wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); + + return M_BMPDATA->m_mask; +} -int wxBitmap::GetWidth(void) const +void wxBitmap::SetMask( wxMask *mask ) { - if (!Ok()) return 0; - return M_BMPDATA->m_width; -}; + wxCHECK_RET( Ok(), wxT("invalid bitmap") ); + + AllocExclusive(); + delete M_BMPDATA->m_mask; + M_BMPDATA->m_mask = mask; +} -int wxBitmap::GetDepth(void) const +bool wxBitmap::CopyFromIcon(const wxIcon& icon) { - if (!Ok()) return 0; - return M_BMPDATA->m_bpp; -}; + *this = icon; + return Ok(); +} + +wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const +{ + wxBitmap ret; + + 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() || 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, M_BMPDATA->m_bpp); + gdk_pixbuf_copy_area(GetPixbuf(), + rect.x, rect.y, rect.width, rect.height, + pixbuf, 0, 0); + } + else + { + 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); + } + // 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 ); + 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; +} -void wxBitmap::SetHeight( const int height ) +bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const { - if (!Ok()) return; - M_BMPDATA->m_height = height; -}; + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + +#if wxUSE_IMAGE + // Try to save the bitmap via wxImage handlers: + wxImage image = ConvertToImage(); + return image.Ok() && image.SaveFile(name, type); +#else // !wxUSE_IMAGE + wxUnusedVar(name); + wxUnusedVar(type); -void wxBitmap::SetWidth( const int width ) + return false; +#endif // wxUSE_IMAGE +} + +bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type ) { - if (!Ok()) return; - M_BMPDATA->m_width = width; -}; + UnRef(); -void wxBitmap::SetDepth( const int depth ) + 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; + } + } +#if wxUSE_IMAGE + else // try if wxImage can load it + { + wxImage image; + if (image.LoadFile(name, type) && image.Ok()) + CreateFromImage(image, -1); + } +#endif // wxUSE_IMAGE + + return Ok(); +} + +#if wxUSE_PALETTE +wxPalette *wxBitmap::GetPalette() const { - if (!Ok()) return; - M_BMPDATA->m_bpp = depth; -}; + wxCHECK_MSG(Ok(), NULL, wxT("invalid bitmap")); -wxMask *wxBitmap::GetMask(void) const + return M_BMPDATA->m_palette; +} + +void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette)) { - if (!Ok()) return NULL; - return M_BMPDATA->m_mask; -}; + // TODO +} +#endif // wxUSE_PALETTE -void wxBitmap::SetMask( wxMask *mask ) +void wxBitmap::SetHeight( int height ) { - if (!Ok()) return; - if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; - M_BMPDATA->m_mask = mask; -}; + AllocExclusive(); + M_BMPDATA->m_height = height; +} -bool wxBitmap::SaveFile( const wxString &WXUNUSED(name), const int WXUNUSED(type), - wxPalette *WXUNUSED(palette) ) +void wxBitmap::SetWidth( int width ) { - return FALSE; -}; + AllocExclusive(); + M_BMPDATA->m_width = width; +} -bool wxBitmap::LoadFile( const wxString &name, const int WXUNUSED(type) ) +void wxBitmap::SetDepth( int depth ) { -#ifdef USE_GDK_IMLIB + AllocExclusive(); + M_BMPDATA->m_bpp = depth; +} - UnRef(); - m_refData = new wxBitmapRefData(); - M_BMPDATA->m_mask = NULL; +void wxBitmap::SetPixmap( GdkPixmap *pixmap ) +{ + if (!m_refData) + m_refData = new wxBitmapRefData; - GdkBitmap *mask = NULL; - - int res = gdk_imlib_load_file_to_pixmap( WXSTRINGCAST name, &M_BMPDATA->m_pixmap, &mask ); + // 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); +} - if (res != 1) - { - UnRef(); - return FALSE; - }; - - if (mask) - { - M_BMPDATA->m_mask = new wxMask(); - M_BMPDATA->m_mask->m_bitmap = mask; - } - - gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - M_BMPDATA->m_bpp = 24; // ? - - return TRUE; -#endif +GdkPixmap *wxBitmap::GetPixmap() const +{ + wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") ); + + // create the pixmap on the fly if we use Pixbuf representation: + if (M_BMPDATA->m_pixmap == NULL) + { + 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, + pmask, + 0x80 /* alpha threshold */); + } + + return M_BMPDATA->m_pixmap; +} - return FALSE; -}; - -wxPalette *wxBitmap::GetPalette(void) const +bool wxBitmap::HasPixmap() const { - if (!Ok()) return NULL; - return M_BMPDATA->m_palette; -}; + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + + return M_BMPDATA->m_pixmap != NULL; +} -GdkPixmap *wxBitmap::GetPixmap(void) const +GdkPixbuf *wxBitmap::GetPixbuf() const +{ + wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); + + if (M_BMPDATA->m_pixbuf == NULL) + { + int width = GetWidth(); + int height = GetHeight(); + + GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, + GetMask() != NULL, + 8, 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) + { + 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 { - if (!Ok()) return NULL; - return M_BMPDATA->m_pixmap; -}; - -GdkBitmap *wxBitmap::GetBitmap(void) const + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); + + return M_BMPDATA->m_pixbuf != NULL; +} + +void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf, int depth) +{ + if (!m_refData) + 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); +} + +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) +{ + void* bits = NULL; + GdkPixbuf *pixbuf = GetPixbuf(); + 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)) { - if (!Ok()) return NULL; - return M_BMPDATA->m_bitmap; -}; - +} + +bool wxBitmap::HasAlpha() const +{ + return m_refData != NULL && M_BMPDATA->m_pixbuf != NULL && + gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf); +} + +wxGDIRefData* wxBitmap::CreateGDIRefData() const +{ + return new wxBitmapRefData; +} + +wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const +{ + 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 newRef; +} + +//----------------------------------------------------------------------------- +// wxBitmapHandler +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase) + +/* static */ void wxBitmap::InitStandardHandlers() +{ + // TODO: Insert handler based on GdkPixbufs handler later +}