X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/99c67c777b7d7a6f0ea74823bff7b9c40379b5fa..e413198572959f013fc2537a3c8cc184c9ac820d:/src/gtk/bitmap.cpp diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp index 3e9ade68da..1be0bb94a4 100644 --- a/src/gtk/bitmap.cpp +++ b/src/gtk/bitmap.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: bitmap.cpp +// Name: src/gtk/bitmap.cpp // Purpose: // Author: Robert Roebling // RCS-ID: $Id$ @@ -7,16 +7,31 @@ // 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 "wx/icon.h" -#include "wx/filefn.h" -#include "gdk/gdkprivate.h" -#include "gdk/gdkx.h" -#include "wx/image.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 "wx/gtk/private/object.h" + +#include + +//----------------------------------------------------------------------------- +// data +//----------------------------------------------------------------------------- + +extern GtkWidget *wxGetRootWindow(); //----------------------------------------------------------------------------- // wxMask @@ -29,24 +44,136 @@ wxMask::wxMask() 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() { - if (m_bitmap) gdk_bitmap_unref( m_bitmap ); + 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; +} + +#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 -GdkBitmap *wxMask::GetBitmap(void) const +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; + + 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()); + + return true; +} + +GdkBitmap *wxMask::GetBitmap() const { return m_bitmap; } @@ -55,313 +182,794 @@ GdkBitmap *wxMask::GetBitmap(void) const // wxBitmap //----------------------------------------------------------------------------- -class wxBitmapRefData: public wxObjectRefData +class wxBitmapRefData: public wxGDIRefData { public: - wxBitmapRefData(void); - ~wxBitmapRefData(void); - - GdkPixmap *m_pixmap; - GdkBitmap *m_bitmap; - wxMask *m_mask; - int m_width; - int m_height; - int m_bpp; - wxPalette *m_palette; + wxBitmapRefData(); + virtual ~wxBitmapRefData(); + + virtual bool IsOk() const { return m_pixmap || m_pixbuf; } + + GdkPixmap *m_pixmap; + 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() { m_pixmap = (GdkPixmap *) NULL; - m_bitmap = (GdkBitmap *) 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() { - if (m_pixmap) gdk_pixmap_unref( m_pixmap ); - if (m_bitmap) gdk_bitmap_unref( m_bitmap ); - if (m_mask) delete m_mask; - if (m_palette) delete m_palette; + 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 static_cast(m_refData) IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) -wxBitmap::wxBitmap() +wxBitmap::wxBitmap(int width, int height, int depth) { - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + Create(width, height, depth); } -wxBitmap::wxBitmap( int width, int height, int depth ) +wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type) { - wxCHECK_RET( (width > 0) && (height > 0), "invalid bitmap size" ) - wxCHECK_RET( (depth > 0) || (depth == -1), "invalid bitmap depth" ) - - m_refData = new wxBitmapRefData(); - - GdkWindow *parent = (GdkWindow*) &gdk_root_parent; + LoadFile(filename, type); +} - M_BMPDATA->m_mask = (wxMask *) NULL; - M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth ); - M_BMPDATA->m_width = width; - M_BMPDATA->m_height = height; - M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; +wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) +{ + wxASSERT(depth == 1); + if (width > 0 && height > 0 && depth == 1) + { + SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height)); - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") ); + } } -wxBitmap::wxBitmap( const char **bits ) +wxBitmap::wxBitmap(const char* const* bits) { - wxCHECK_RET( bits != NULL, "invalid bitmap data" ) + wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data")); - m_refData = new wxBitmapRefData(); + GdkBitmap* mask = NULL; + SetPixmap(gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, const_cast(bits))); - GdkBitmap *mask = (GdkBitmap*) NULL; - GdkWindow *parent = (GdkWindow*) &gdk_root_parent; + if (M_BMPDATA->m_pixmap != NULL && mask != NULL) + { + M_BMPDATA->m_mask = new wxMask; + M_BMPDATA->m_mask->m_bitmap = mask; + } +} - M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits ); +wxBitmap::~wxBitmap() +{ +} - if (mask) +bool wxBitmap::Create( int width, int height, int depth ) +{ + UnRef(); + + if ( width <= 0 || height <= 0 ) { - M_BMPDATA->m_mask = new wxMask(); - M_BMPDATA->m_mask->m_bitmap = mask; + return false; } - gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); + const GdkVisual* visual = wxTheApp->GetGdkVisual(); + + if (depth == 32) + { + SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32); + // must initialize alpha, otherwise GetPixmap() + // will create a mask out of garbage + gdk_pixbuf_fill(M_BMPDATA->m_pixbuf, 0x000000ff); + } else + if (depth == 24) + { + if (visual->depth == depth) + SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth)); + else + SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, width, height), 24); + } + else + { + if (depth != 1) + { + if (depth == -1) + depth = visual->depth; + } + SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth)); + } - M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ? - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + return Ok(); } -wxBitmap::wxBitmap( char **bits ) +wxBitmap wxBitmap::Rescale(int clipx, int clipy, int clipwidth, int clipheight, + int width, int height) const { - wxCHECK_RET( bits != NULL, "invalid bitmap data" ) + wxBitmap bmp; + + wxCHECK_MSG(Ok(), bmp, wxT("invalid bitmap")); + + width = wxMax(width, 1); + height = wxMax(height, 1); + + const double scale_x = double(width) / clipwidth; + const double scale_y = double(height) / clipheight; - m_refData = new wxBitmapRefData(); + // Converting to pixbuf, scaling with gdk_pixbuf_scale, and converting + // back, is faster than scaling pixmap ourselves. - GdkBitmap *mask = (GdkBitmap*) NULL; - GdkWindow *parent = (GdkWindow*) &gdk_root_parent; + // 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); - M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits ); + // 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*scale_x, -clipy*scale_y, scale_x, scale_y, + GDK_INTERP_NEAREST); - wxCHECK_RET( M_BMPDATA->m_pixmap, "couldn't create pixmap" ); + g_object_unref(pixbuf); + bmp.SetPixbuf(pixbuf_scaled, M_BMPDATA->m_bpp); - if (mask) + if (M_BMPDATA->m_mask) { - M_BMPDATA->m_mask = new wxMask(); - M_BMPDATA->m_mask->m_bitmap = 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); - gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); + pixbuf_scaled = gdk_pixbuf_new( + GDK_COLORSPACE_RGB, false, 8, width, height); - M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ? - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + 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( const wxBitmap& bmp ) +#if wxUSE_IMAGE + +bool wxBitmap::CreateFromImage(const wxImage& image, int depth) { - Ref( 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; - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + // 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); } -wxBitmap::wxBitmap( const wxString &filename, int type ) +bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth) { - LoadFile( filename, type ); + 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)); + 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); + } + + const wxByte* alpha = image.GetAlpha(); + if (alpha != NULL || image.HasMask()) + { + // create mask as XBM format bitmap - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + 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; } -wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth)) +bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) { - m_refData = new wxBitmapRefData(); + wxASSERT(image.HasAlpha()); - M_BMPDATA->m_mask = (wxMask *) NULL; - M_BMPDATA->m_bitmap = - gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height ); - M_BMPDATA->m_width = width; - M_BMPDATA->m_height = height; - M_BMPDATA->m_bpp = 1; + int width = image.GetWidth(); + int height = image.GetHeight(); - wxCHECK_RET( M_BMPDATA->m_bitmap, "couldn't create bitmap" ); + Create(width, height, 32); + GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf; + if (!pixbuf) + return false; - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -} + // Copy the data: + const unsigned char* in = image.GetData(); + unsigned char *out = gdk_pixbuf_get_pixels(pixbuf); + unsigned char *alpha = image.GetAlpha(); -wxBitmap::~wxBitmap() -{ - if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this); -} + int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width; -wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp ) -{ - if (*this == bmp) return (*this); - Ref( bmp ); - return *this; -} + 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; + } + } -bool wxBitmap::operator == ( const wxBitmap& bmp ) -{ - return m_refData == bmp.m_refData; + return true; } -bool wxBitmap::operator != ( const wxBitmap& bmp ) +wxImage wxBitmap::ConvertToImage() const { - return m_refData != bmp.m_refData; -} + wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); -bool wxBitmap::Ok(void) const -{ - return (m_refData != NULL); + 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); + 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); + 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; } -int wxBitmap::GetHeight(void) const +#endif // wxUSE_IMAGE + +int wxBitmap::GetHeight() const { - wxCHECK_MSG( Ok(), -1, "invalid bitmap" ); + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); return M_BMPDATA->m_height; } -int wxBitmap::GetWidth(void) const +int wxBitmap::GetWidth() const { - wxCHECK_MSG( Ok(), -1, "invalid bitmap" ); + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); return M_BMPDATA->m_width; } -int wxBitmap::GetDepth(void) const +int wxBitmap::GetDepth() const { - wxCHECK_MSG( Ok(), -1, "invalid bitmap" ); + wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); return M_BMPDATA->m_bpp; } -wxMask *wxBitmap::GetMask(void) const +wxMask *wxBitmap::GetMask() const { - wxCHECK_MSG( Ok(), (wxMask *) NULL, "invalid bitmap" ); + wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); return M_BMPDATA->m_mask; } void wxBitmap::SetMask( wxMask *mask ) { - wxCHECK_RET( Ok(), "invalid bitmap" ); - - if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; + wxCHECK_RET( Ok(), wxT("invalid bitmap") ); + AllocExclusive(); + delete M_BMPDATA->m_mask; M_BMPDATA->m_mask = mask; } -bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) ) +bool wxBitmap::CopyFromIcon(const wxIcon& icon) { - wxCHECK_MSG( Ok(), FALSE, "invalid bitmap" ); + *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 (type == wxBITMAP_TYPE_PNG) + 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 { - wxImage image( *this ); - if (image.Ok()) return image.SaveFile( name, type ); + ret.Create(rect.width, rect.height, M_BMPDATA->m_bpp); + wxGtkObject gc(gdk_gc_new( ret.GetPixmap() )); + gdk_draw_drawable( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height ); + } + // 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 ); + + wxGtkObject 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); + + ret.SetMask( mask ); } - return FALSE; + return ret; } -bool wxBitmap::LoadFile( const wxString &name, int type ) +bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const { - UnRef(); + 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); + + return false; +#endif // wxUSE_IMAGE +} - if (!wxFileExists(name)) return FALSE; +bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type ) +{ + UnRef(); if (type == wxBITMAP_TYPE_XPM) { - m_refData = new wxBitmapRefData(); - GdkBitmap *mask = (GdkBitmap*) NULL; - GdkWindow *parent = (GdkWindow*) &gdk_root_parent; - - M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &mask, NULL, name ); + SetPixmap(gdk_pixmap_create_from_xpm(wxGetRootWindow()->window, &mask, NULL, name.fn_str())); if (mask) { - M_BMPDATA->m_mask = new wxMask(); - M_BMPDATA->m_mask->m_bitmap = mask; + M_BMPDATA->m_mask = new wxMask; + M_BMPDATA->m_mask->m_bitmap = mask; } - - gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) ); - M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; - } - else if (type == wxBITMAP_TYPE_PNG) - { - wxImage image; - image.LoadFile( name, type ); - if (image.Ok()) *this = image.ConvertToBitmap(); } - else if (type == wxBITMAP_TYPE_BMP) +#if wxUSE_IMAGE + else // try if wxImage can load it { wxImage image; - image.LoadFile( name, type ); - if (image.Ok()) *this = image.ConvertToBitmap(); + if (image.LoadFile(name, type) && image.Ok()) + CreateFromImage(image, -1); } - else - return FALSE; +#endif // wxUSE_IMAGE - return TRUE; + return Ok(); } -wxPalette *wxBitmap::GetPalette(void) const +#if wxUSE_PALETTE +wxPalette *wxBitmap::GetPalette() const { - if (!Ok()) return (wxPalette *) NULL; + wxCHECK_MSG(Ok(), NULL, wxT("invalid bitmap")); return M_BMPDATA->m_palette; } -void wxBitmap::SetHeight( int height ) +void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette)) { - if (!m_refData) m_refData = new wxBitmapRefData(); + // TODO +} +#endif // wxUSE_PALETTE +void wxBitmap::SetHeight( int height ) +{ + 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(); + 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_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(void) const +GdkPixmap *wxBitmap::GetPixmap() const { - wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, "invalid bitmap" ); + 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; } -GdkBitmap *wxBitmap::GetBitmap(void) const +bool wxBitmap::HasPixmap() const { - wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, "invalid bitmap" ); + wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") ); - return M_BMPDATA->m_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(); + + 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 +{ + 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 && ((bpp == 24 && !hasAlpha) || (bpp == 32 && hasAlpha)) ) + { + data.m_height = gdk_pixbuf_get_height( pixbuf ); + data.m_width = gdk_pixbuf_get_width( pixbuf ); + data.m_stride = gdk_pixbuf_get_rowstride( pixbuf ); + bits = gdk_pixbuf_get_pixels(pixbuf); + } + return bits; +} + +void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data)) +{ +} + +bool wxBitmap::HasAlpha() const +{ + return 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 = static_cast(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)); + 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; + newRef->m_mask->m_bitmap = gdk_pixmap_new( + oldRef->m_mask->m_bitmap, oldRef->m_width, oldRef->m_height, 1); + wxGtkObject 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); + } +#if wxUSE_PALETTE + // implement this if SetPalette is ever implemented + wxASSERT(oldRef->m_palette == NULL); +#endif + + return newRef; +} + +/* static */ void wxBitmap::InitStandardHandlers() +{ + // TODO: Insert handler based on GdkPixbufs handler later +}