X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/debe6624c1e9d4bf3243381153d1e173c849bcd8..4e15d1caa03346c126015019c1fdf093033ef40b:/src/gtk/bitmap.cpp diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp index eb09743ab8..a551b04a28 100644 --- a/src/gtk/bitmap.cpp +++ b/src/gtk/bitmap.cpp @@ -1,317 +1,1491 @@ ///////////////////////////////////////////////////////////////////////////// -// 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/icon.h" + #include "wx/image.h" + #include "wx/colour.h" +#endif + +#include "wx/rawbmp.h" + +#include "wx/gtk/private/object.h" +#include "wx/gtk/private.h" + +#include + +extern GtkWidget *wxGetRootWindow(); + +#ifndef __WXGTK3__ +static void PixmapToPixbuf(GdkPixmap* pixmap, GdkPixbuf* pixbuf, int w, int h) +{ + gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0, w, h); + if (gdk_drawable_get_depth(pixmap) == 1) + { + // invert to match XBM convention + guchar* p = gdk_pixbuf_get_pixels(pixbuf); + const int inc = 3 + int(gdk_pixbuf_get_has_alpha(pixbuf) != 0); + const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - w * inc; + for (int y = h; y; y--, p += rowpad) + for (int x = w; x; x--, p += inc) + { + // pixels are either (0,0,0) or (0xff,0xff,0xff) + p[0] = ~p[0]; + p[1] = ~p[1]; + p[2] = ~p[2]; + } + } +} + +static void MaskToAlpha(GdkPixmap* mask, GdkPixbuf* pixbuf, int w, int h) +{ + GdkPixbuf* mask_pixbuf = gdk_pixbuf_get_from_drawable( + NULL, mask, NULL, 0, 0, 0, 0, w, h); + guchar* p = gdk_pixbuf_get_pixels(pixbuf) + 3; + const guchar* mask_data = gdk_pixbuf_get_pixels(mask_pixbuf); + const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - w * 4; + const int mask_rowpad = gdk_pixbuf_get_rowstride(mask_pixbuf) - w * 3; + for (int y = h; y; y--, p += rowpad, mask_data += mask_rowpad) + { + for (int x = w; x; x--, p += 4, mask_data += 3) + { + *p = 255; + // no need to test all 3 components, + // pixels are either (0,0,0) or (0xff,0xff,0xff) + if (mask_data[0] == 0) + *p = 0; + } + } + g_object_unref(mask_pixbuf); +} #endif //----------------------------------------------------------------------------- // wxMask //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject) +IMPLEMENT_DYNAMIC_CLASS(wxMask, wxMaskBase) -wxMask::wxMask(void) +wxMask::wxMask() { - m_bitmap = NULL; -}; + m_bitmap = NULL; +} -wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour) ) +wxMask::wxMask(const wxMask& mask) { -}; +#ifdef __WXGTK3__ + m_bitmap = NULL; + if (mask.m_bitmap) + { + const int w = cairo_image_surface_get_width(mask.m_bitmap); + const int h = cairo_image_surface_get_height(mask.m_bitmap); + m_bitmap = cairo_image_surface_create(CAIRO_FORMAT_A8, w, h); + const guchar* src = cairo_image_surface_get_data(mask.m_bitmap); + guchar* dst = cairo_image_surface_get_data(m_bitmap); + const int stride = cairo_image_surface_get_stride(m_bitmap); + wxASSERT(stride == cairo_image_surface_get_stride(mask.m_bitmap)); + memcpy(dst, src, stride * h); + cairo_surface_mark_dirty(m_bitmap); + } +#else + if ( !mask.m_bitmap ) + { + m_bitmap = NULL; + return; + } + + // create a copy of an existing mask + gint w, h; + gdk_drawable_get_size(mask.m_bitmap, &w, &h); + m_bitmap = gdk_pixmap_new(mask.m_bitmap, w, h, 1); -wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex) ) + wxGtkObject gc(gdk_gc_new(m_bitmap)); + gdk_draw_drawable(m_bitmap, gc, mask.m_bitmap, 0, 0, 0, 0, -1, -1); +#endif +} + +wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour ) { -}; + m_bitmap = NULL; + InitFromColour(bitmap, colour); +} -wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap) ) +#if wxUSE_PALETTE +wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex ) { -}; + m_bitmap = NULL; + Create( bitmap, paletteIndex ); +} +#endif // wxUSE_PALETTE -wxMask::~wxMask(void) +wxMask::wxMask( const wxBitmap& bitmap ) { -#ifdef USE_GDK_IMLIB - // do not delete the mask, gdk_imlib does it for you + m_bitmap = NULL; + InitFromMonoBitmap(bitmap); +} + +#ifdef __WXGTK3__ +wxMask::wxMask(cairo_surface_t* bitmap) #else - if (m_bitmap) gdk_bitmap_unref( m_bitmap ); -#endif -}; +wxMask::wxMask(GdkPixmap* bitmap) +#endif +{ + m_bitmap = bitmap; +} -GdkBitmap *wxMask::GetBitmap(void) const +wxMask::~wxMask() { - return m_bitmap; -}; - + if (m_bitmap) + { +#ifdef __WXGTK3__ + cairo_surface_destroy(m_bitmap); +#else + g_object_unref (m_bitmap); +#endif + } +} + +void wxMask::FreeData() +{ + if (m_bitmap) + { +#ifdef __WXGTK3__ + cairo_surface_destroy(m_bitmap); +#else + g_object_unref (m_bitmap); +#endif + m_bitmap = NULL; + } +} + +bool wxMask::InitFromColour(const wxBitmap& bitmap, const wxColour& colour) +{ + const int w = bitmap.GetWidth(); + const int h = bitmap.GetHeight(); + +#ifdef __WXGTK3__ + m_bitmap = cairo_image_surface_create(CAIRO_FORMAT_A8, w, h); + GdkPixbuf* pixbuf = bitmap.GetPixbufNoMask(); + const guchar* src = gdk_pixbuf_get_pixels(pixbuf); + guchar* dst = cairo_image_surface_get_data(m_bitmap); + const int stride_src = gdk_pixbuf_get_rowstride(pixbuf); + const int stride_dst = cairo_image_surface_get_stride(m_bitmap); + const int src_inc = gdk_pixbuf_get_n_channels(pixbuf); + const guchar r = colour.Red(); + const guchar g = colour.Green(); + const guchar b = colour.Blue(); + for (int j = 0; j < h; j++, src += stride_src, dst += stride_dst) + { + const guchar* s = src; + for (int i = 0; i < w; i++, s += src_inc) + { + dst[i] = 0xff; + if (s[0] == r && s[1] == g && s[2] == b) + dst[i] = 0; + } + } + cairo_surface_mark_dirty(m_bitmap); +#else + // 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; +#endif + return true; +} + +bool wxMask::InitFromMonoBitmap(const wxBitmap& bitmap) +{ + if (!bitmap.IsOk()) return false; + + wxCHECK_MSG( bitmap.GetDepth() == 1, false, wxT("Cannot create mask from colour bitmap") ); + +#ifdef __WXGTK3__ + InitFromColour(bitmap, *wxBLACK); +#else + 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()); +#endif + + return true; +} + +#ifdef __WXGTK3__ +cairo_surface_t* wxMask::GetBitmap() const +#else +GdkPixmap* wxMask::GetBitmap() const +#endif +{ + return m_bitmap; +} + //----------------------------------------------------------------------------- -// wxBitmap +// wxBitmapRefData //----------------------------------------------------------------------------- -// CMB 20/5/98: added m_bitmap for GdkBitmaps -class wxBitmapRefData: public wxObjectRefData +class wxBitmapRefData: public wxGDIRefData { - public: - - wxBitmapRefData(void); - ~wxBitmapRefData(void); - +public: + wxBitmapRefData(int width, int height, int depth); + virtual ~wxBitmapRefData(); + + virtual bool IsOk() const; + +#ifdef __WXGTK3__ + GdkPixbuf* m_pixbufMask; + GdkPixbuf* m_pixbufNoMask; + cairo_surface_t* m_surface; +#else GdkPixmap *m_pixmap; - GdkBitmap *m_bitmap; + GdkPixbuf *m_pixbuf; +#endif wxMask *m_mask; int m_width; int m_height; int m_bpp; - wxPalette *m_palette; +#ifndef __WXGTK3__ + bool m_alphaRequested; +#endif + + // We don't provide a copy ctor as copying m_pixmap and m_pixbuf properly + // is expensive and we don't want to do it implicitly (and possibly + // accidentally). wxBitmap::CloneGDIRefData() which does need to do it does + // it explicitly itself. + wxDECLARE_NO_COPY_CLASS(wxBitmapRefData); }; -wxBitmapRefData::wxBitmapRefData(void) +wxBitmapRefData::wxBitmapRefData(int width, int height, int depth) { - m_pixmap = NULL; - m_bitmap = NULL; - m_mask = NULL; - m_width = 0; - m_height = 0; - m_bpp = 0; - m_palette = NULL; -}; +#ifdef __WXGTK3__ + m_pixbufMask = NULL; + m_pixbufNoMask = NULL; + m_surface = NULL; +#else + m_pixmap = NULL; + m_pixbuf = NULL; +#endif + m_mask = NULL; + m_width = width; + m_height = height; + m_bpp = depth; +#ifdef __WXGTK3__ + if (m_bpp != 1 && m_bpp != 32) + m_bpp = 24; +#else + if (m_bpp < 0) + m_bpp = gdk_drawable_get_depth(wxGetRootWindow()->window); + m_alphaRequested = depth == 32; +#endif +} -wxBitmapRefData::~wxBitmapRefData(void) +wxBitmapRefData::~wxBitmapRefData() { -#ifdef USE_GDK_IMLIB - if (m_pixmap) gdk_imlib_free_pixmap( m_pixmap ); +#ifdef __WXGTK3__ + if (m_pixbufMask) + g_object_unref(m_pixbufMask); + if (m_pixbufNoMask) + g_object_unref(m_pixbufNoMask); + if (m_surface) + cairo_surface_destroy(m_surface); #else - if (m_pixmap) gdk_pixmap_unref( m_pixmap ); - if (m_bitmap) gdk_bitmap_unref( m_bitmap ); + if (m_pixmap) + g_object_unref (m_pixmap); + if (m_pixbuf) + g_object_unref (m_pixbuf); #endif - if (m_mask) delete m_mask; - if (m_palette) delete m_palette; -}; + delete m_mask; +} +bool wxBitmapRefData::IsOk() const +{ + return m_bpp != 0; +} + +//----------------------------------------------------------------------------- +// wxBitmap //----------------------------------------------------------------------------- -#define M_BMPDATA ((wxBitmapRefData *)m_refData) +#define M_BMPDATA static_cast(m_refData) IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject) -wxBitmap::wxBitmap(void) +wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type) { - 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 ); - 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); -}; + LoadFile(filename, type); +} -wxBitmap::wxBitmap( char **bits ) +wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) { - m_refData = new wxBitmapRefData(); - - GdkBitmap *mask = NULL; + wxASSERT(depth == 1); + if (width > 0 && height > 0 && depth == 1) + { + m_refData = new wxBitmapRefData(width, height, 1); +#ifdef __WXGTK3__ + GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, width, height); + M_BMPDATA->m_pixbufNoMask = pixbuf; + const char* src = bits; + guchar* dst = gdk_pixbuf_get_pixels(pixbuf); + const int stride_src = (width + 7) / 8; + const int rowinc_dst = gdk_pixbuf_get_rowstride(pixbuf) - 3 * width; + for (int j = 0; j < width; j++, src += stride_src, dst += rowinc_dst) + { + for (int i = 0; i < height; i++) + { + guchar c = 0xff; + if (src[i >> 3] & (1 << (i & 7))) + c = 0; + *dst++ = c; + *dst++ = c; + *dst++ = c; + } + } +#else + M_BMPDATA->m_pixmap = gdk_bitmap_create_from_data( + wxGetRootWindow()->window, bits, width, height); +#endif + } +} + +wxBitmap::wxBitmap(const char* const* bits) +{ + wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data")); -#ifndef USE_GDK_IMLIB - M_BMPDATA->m_pixmap = - gdk_pixmap_create_from_xpm_d( (GdkWindow*) &gdk_root_parent, &mask, NULL, (gchar **) bits ); +#if wxUSE_IMAGE + *this = wxBitmap(wxImage(bits)); +#elif defined __WXGTK3__ + GdkPixbuf* pixbuf = gdk_pixbuf_new_from_xpm_data(const_cast(bits)); + if (pixbuf) + { + m_refData = new wxBitmapRefData( + gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf), + gdk_pixbuf_get_n_channels(pixbuf) * 8); + M_BMPDATA->m_pixbufNoMask = pixbuf; + wxASSERT(M_BMPDATA->m_bpp == 32 || !gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbufNoMask)); + } #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 ) + GdkBitmap* mask = NULL; + GdkPixmap* pixmap = gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, const_cast(bits)); + if (pixmap) + { + int width, height; + gdk_drawable_get_size(pixmap, &width, &height); + m_refData = new wxBitmapRefData(width, height, -1); + M_BMPDATA->m_pixmap = pixmap; + if (mask) + { + M_BMPDATA->m_mask = new wxMask(mask); + } + } +#endif +} + +wxBitmap::wxBitmap(GdkPixbuf* pixbuf) { - Ref( bmp ); - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; - -wxBitmap::wxBitmap( const wxBitmap* bmp ) + if (pixbuf) + { + wxBitmapRefData* bmpData = new wxBitmapRefData( + gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf), + gdk_pixbuf_get_n_channels(pixbuf) * 8); + m_refData = bmpData; +#ifdef __WXGTK3__ + bmpData->m_pixbufNoMask = pixbuf; +#else + bmpData->m_pixbuf = pixbuf; +#endif + } +} + +wxBitmap::~wxBitmap() { - if (bmp) Ref( *bmp ); - - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); -}; +} -wxBitmap::wxBitmap( const wxString &filename, int type ) +bool wxBitmap::Create( int width, int height, int depth ) { - LoadFile( filename, type ); -}; + UnRef(); + wxCHECK_MSG(width >= 0 && height >= 0, false, "invalid bitmap size"); + m_refData = new wxBitmapRefData(width, height, depth); + return true; +} -// CMB 15/5/98: add constructor for xbm bitmaps -wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth)) +#ifdef __WXGTK3__ +static void CopyImageData( + guchar* dst, int dstChannels, int dstStride, + const guchar* src, int srcChannels, int srcStride, + int w, int h) { - m_refData = new wxBitmapRefData(); + if (dstChannels == srcChannels) + { + if (dstStride == srcStride) + memcpy(dst, src, size_t(dstStride) * h); + else + { + const int stride = dstStride < srcStride ? dstStride : srcStride; + for (int j = 0; j < h; j++, src += srcStride, dst += dstStride) + memcpy(dst, src, stride); + } + } + else + { + for (int j = 0; j < h; j++, src += srcStride, dst += dstStride) + { + guchar* d = dst; + const guchar* s = src; + if (dstChannels == 4) + { + for (int i = 0; i < w; i++, d += 4, s += 3) + { + d[0] = s[0]; + d[1] = s[1]; + d[2] = s[2]; + d[3] = 0xff; + } + } + else + { + for (int i = 0; i < w; i++, d += 3, s += 4) + { + d[0] = s[0]; + d[1] = s[1]; + d[2] = s[2]; + } + } + } + } +} +#endif + +#if wxUSE_IMAGE +#ifdef __WXGTK3__ +wxBitmap::wxBitmap(const wxImage& image, int depth) +{ + wxCHECK_RET(image.IsOk(), "invalid image"); + + const int w = image.GetWidth(); + const int h = image.GetHeight(); + const guchar* alpha = image.GetAlpha(); + if (depth < 0) + depth = alpha ? 32 : 24; + else if (depth != 1 && depth != 32) + depth = 24; + wxBitmapRefData* bmpData = new wxBitmapRefData(w, h, depth); + m_refData = bmpData; + GdkPixbuf* pixbuf_dst = gdk_pixbuf_new(GDK_COLORSPACE_RGB, depth == 32, 8, w, h); + bmpData->m_pixbufNoMask = pixbuf_dst; + wxASSERT(bmpData->m_bpp == 32 || !gdk_pixbuf_get_has_alpha(bmpData->m_pixbufNoMask)); + const guchar* src = image.GetData(); - 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; + guchar* dst = gdk_pixbuf_get_pixels(pixbuf_dst); + const int dstStride = gdk_pixbuf_get_rowstride(pixbuf_dst); + CopyImageData(dst, gdk_pixbuf_get_n_channels(pixbuf_dst), dstStride, src, 3, 3 * w, w, h); - if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this); + if (depth == 32 && alpha) + { + for (int j = 0; j < h; j++, dst += dstStride) + for (int i = 0; i < w; i++) + dst[i * 4 + 3] = *alpha++; + } + if (image.HasMask()) + { + const guchar r = image.GetMaskRed(); + const guchar g = image.GetMaskGreen(); + const guchar b = image.GetMaskBlue(); + cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_A8, w, h); + const int stride = cairo_image_surface_get_stride(surface); + dst = cairo_image_surface_get_data(surface); + memset(dst, 0xff, stride * h); + for (int j = 0; j < h; j++, dst += stride) + for (int i = 0; i < w; i++, src += 3) + if (src[0] == r && src[1] == g && src[2] == b) + dst[i] = 0; + cairo_surface_mark_dirty(surface); + bmpData->m_mask = new wxMask(surface); + } } - -wxBitmap::~wxBitmap(void) +#else +wxBitmap::wxBitmap(const wxImage& image, int depth) { - if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this); -}; - -wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp ) + wxCHECK_RET(image.IsOk(), "invalid image"); + + if (depth == 32 || (depth == -1 && image.HasAlpha())) + CreateFromImageAsPixbuf(image); + else + // otherwise create pixmap, if alpha is present it will be converted to mask + CreateFromImageAsPixmap(image, depth); +} + +bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth) { - if (*this == bmp) return (*this); - Ref( bmp ); - return *this; -}; - -bool wxBitmap::operator == ( const wxBitmap& bmp ) + 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; + + if (!M_BMPDATA) // SetPixmap may have failed + return false; + } + else + { + SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, w, h, depth)); + if (!M_BMPDATA) + return false; + + wxGtkObject gc(gdk_gc_new(M_BMPDATA->m_pixmap)); + gdk_draw_rgb_image( + M_BMPDATA->m_pixmap, gc, + 0, 0, w, h, + GDK_RGB_DITHER_NONE, image.GetData(), w * 3); + } + + 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; + } + } + SetMask(new wxMask(gdk_bitmap_create_from_data(M_BMPDATA->m_pixmap, (char*)out, w, h))); + delete[] out; + } + return IsOk(); +} + +bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image) { - return m_refData == bmp.m_refData; -}; - -bool wxBitmap::operator != ( const wxBitmap& bmp ) + int width = image.GetWidth(); + int height = image.GetHeight(); + + Create(width, height, 32); + GdkPixbuf* pixbuf = GetPixbuf(); + 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++, out += 4, in += 3) + { + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + if (alpha) + out[3] = *alpha++; + } + } + + return true; +} +#endif + +wxImage wxBitmap::ConvertToImage() const { - return m_refData != bmp.m_refData; -}; - -bool wxBitmap::Ok(void) const +#ifdef __WXGTK3__ + wxImage image; + wxCHECK_MSG(IsOk(), image, "invalid bitmap"); + wxBitmapRefData* bmpData = M_BMPDATA; + const int w = bmpData->m_width; + const int h = bmpData->m_height; + image.Create(w, h, false); + guchar* dst = image.GetData(); + GdkPixbuf* pixbuf_src = NULL; + if (bmpData->m_pixbufNoMask) + pixbuf_src = bmpData->m_pixbufNoMask; + else if (bmpData->m_surface) + { + pixbuf_src = gdk_pixbuf_get_from_surface(bmpData->m_surface, 0, 0, w, h); + bmpData->m_pixbufNoMask = pixbuf_src; + wxASSERT(bmpData->m_bpp == 32 || !gdk_pixbuf_get_has_alpha(bmpData->m_pixbufNoMask)); + } + if (pixbuf_src) + { + const guchar* src = gdk_pixbuf_get_pixels(pixbuf_src); + const int srcStride = gdk_pixbuf_get_rowstride(pixbuf_src); + const int srcChannels = gdk_pixbuf_get_n_channels(pixbuf_src); + CopyImageData(dst, 3, 3 * w, src, srcChannels, srcStride, w, h); + + if (srcChannels == 4) + { + image.SetAlpha(); + guchar* alpha = image.GetAlpha(); + for (int j = 0; j < h; j++, src += srcStride) + { + const guchar* s = src; + for (int i = 0; i < w; i++, s += 4) + *alpha++ = s[3]; + } + } + } + cairo_surface_t* maskSurf = NULL; + if (bmpData->m_mask) + maskSurf = bmpData->m_mask->GetBitmap(); + if (maskSurf) + { + const guchar r = 1; + const guchar g = 2; + const guchar b = 3; + image.SetMaskColour(r, g, b); + wxASSERT(cairo_image_surface_get_format(maskSurf) == CAIRO_FORMAT_A8); + const int stride = cairo_image_surface_get_stride(maskSurf); + const guchar* src = cairo_image_surface_get_data(maskSurf); + for (int j = 0; j < h; j++, src += stride) + { + for (int i = 0; i < w; i++, dst += 3) + if (src[i] == 0) + { + dst[0] = r; + dst[1] = g; + dst[2] = b; + } + else if (dst[0] == r && dst[1] == g && dst[2] == b) + dst[2]--; + } + } +#else + wxCHECK_MSG( IsOk(), 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); + 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); + } +#endif + + return image; +} + +#endif // wxUSE_IMAGE + +int wxBitmap::GetHeight() const { - return m_refData != NULL; -}; - -int wxBitmap::GetHeight(void) const + wxCHECK_MSG( IsOk(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_height; +} + +int wxBitmap::GetWidth() const { - if (!Ok()) return 0; - return M_BMPDATA->m_height; -}; + wxCHECK_MSG( IsOk(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_width; +} -int wxBitmap::GetWidth(void) const +int wxBitmap::GetDepth() const { - if (!Ok()) return 0; - return M_BMPDATA->m_width; -}; + wxCHECK_MSG( IsOk(), -1, wxT("invalid bitmap") ); + + return M_BMPDATA->m_bpp; +} -int wxBitmap::GetDepth(void) const +wxMask *wxBitmap::GetMask() const { - if (!Ok()) return 0; - return M_BMPDATA->m_bpp; -}; + wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ); + + return M_BMPDATA->m_mask; +} + +void wxBitmap::SetMask( wxMask *mask ) +{ + wxCHECK_RET( IsOk(), wxT("invalid bitmap") ); + + AllocExclusive(); + delete M_BMPDATA->m_mask; + M_BMPDATA->m_mask = mask; +} + +wxBitmap wxBitmap::GetMaskBitmap() const +{ + wxBitmap bitmap; + wxBitmapRefData* bmpData = M_BMPDATA; +#ifdef __WXGTK3__ + cairo_surface_t* mask = NULL; + if (bmpData && bmpData->m_mask) + mask = bmpData->m_mask->GetBitmap(); + if (mask) + { + const int w = cairo_image_surface_get_width(mask); + const int h = cairo_image_surface_get_height(mask); + GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, w, h); + const guchar* src = cairo_image_surface_get_data(mask); + guchar* dst = gdk_pixbuf_get_pixels(pixbuf); + const int stride_src = cairo_image_surface_get_stride(mask); + const int stride_dst = gdk_pixbuf_get_rowstride(pixbuf); + for (int j = 0; j < h; j++, src += stride_src, dst += stride_dst) + { + guchar* d = dst; + for (int i = 0; i < w; i++, d += 3) + { + d[0] = src[i]; + d[1] = src[i]; + d[2] = src[i]; + } + } + bitmap = wxBitmap(pixbuf); + } +#else + GdkPixmap* mask = NULL; + if (bmpData && bmpData->m_mask) + mask = bmpData->m_mask->GetBitmap(); + if (mask) + { + int w, h; + gdk_drawable_get_size(mask, &w, &h); + GdkPixbuf* pixbuf = gdk_pixbuf_get_from_drawable( + NULL, mask, NULL, 0, 0, 0, 0, w, h); + bitmap = wxBitmap(pixbuf); + } +#endif + return bitmap; +} + +bool wxBitmap::CopyFromIcon(const wxIcon& icon) +{ + *this = icon; + return IsOk(); +} + +#ifdef __WXGTK3__ +static cairo_surface_t* GetSubSurface(cairo_surface_t* surface, const wxRect& rect) +{ + cairo_surface_flush(surface); + const cairo_format_t format = cairo_image_surface_get_format(surface); + int x = rect.x; + if (format != CAIRO_FORMAT_A8) + x *= 4; + cairo_surface_t* subSurface = cairo_image_surface_create(format, rect.width, rect.height); + const int srcStride = cairo_image_surface_get_stride(surface); + const int dstStride = cairo_image_surface_get_stride(subSurface); + const guchar* src = cairo_image_surface_get_data(surface) + rect.y * srcStride + x; + guchar* dst = cairo_image_surface_get_data(subSurface); + for (int j = 0; j < rect.height; j++, src += srcStride, dst += dstStride) + memcpy(dst, src, dstStride); + cairo_surface_mark_dirty(subSurface); + return subSurface; +} +#endif + +wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const +{ + wxBitmap ret; + + wxCHECK_MSG(IsOk(), ret, wxT("invalid bitmap")); + + const int w = rect.width; + const int h = rect.height; + const wxBitmapRefData* bmpData = M_BMPDATA; + + wxCHECK_MSG(rect.x >= 0 && rect.y >= 0 && + rect.x + w <= bmpData->m_width && + rect.y + h <= bmpData->m_height, + ret, wxT("invalid bitmap region")); + + wxBitmapRefData * const newRef = new wxBitmapRefData(w, h, bmpData->m_bpp); + ret.m_refData = newRef; + +#ifdef __WXGTK3__ + if (bmpData->m_pixbufNoMask) + { + GdkPixbuf* pixbuf = gdk_pixbuf_new_subpixbuf(bmpData->m_pixbufNoMask, rect.x, rect.y, w, h); + newRef->m_pixbufNoMask = gdk_pixbuf_copy(pixbuf); + wxASSERT(newRef->m_bpp == 32 || !gdk_pixbuf_get_has_alpha(newRef->m_pixbufNoMask)); + g_object_unref(pixbuf); + } + else if (bmpData->m_surface) + newRef->m_surface = GetSubSurface(bmpData->m_surface, rect); + + cairo_surface_t* maskSurf = NULL; + if (bmpData->m_mask) + maskSurf = bmpData->m_mask->GetBitmap(); + if (maskSurf) + { + newRef->m_mask = new wxMask(GetSubSurface(maskSurf, rect)); + } +#else + if (bmpData->m_pixbuf) + { + GdkPixbuf* pixbuf = + gdk_pixbuf_new_subpixbuf(bmpData->m_pixbuf, rect.x, rect.y, w, h); + newRef->m_pixbuf = gdk_pixbuf_copy(pixbuf); + g_object_unref(pixbuf); + } + if (bmpData->m_pixmap) + { + newRef->m_pixmap = gdk_pixmap_new(bmpData->m_pixmap, w, h, -1); + GdkGC* gc = gdk_gc_new(newRef->m_pixmap); + gdk_draw_drawable( + newRef->m_pixmap, gc, bmpData->m_pixmap, rect.x, rect.y, 0, 0, w, h); + g_object_unref(gc); + } + GdkPixmap* mask = NULL; + if (bmpData->m_mask) + mask = bmpData->m_mask->GetBitmap(); + if (mask) + { + GdkPixmap* sub_mask = gdk_pixmap_new(mask, w, h, 1); + newRef->m_mask = new wxMask(sub_mask); + GdkGC* gc = gdk_gc_new(sub_mask); + gdk_draw_drawable( + sub_mask, gc, mask, rect.x, rect.y, 0, 0, w, h); + g_object_unref(gc); + } +#endif + + return ret; +} + +bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const +{ + wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") ); + +#if wxUSE_IMAGE + wxImage image = ConvertToImage(); + if (image.IsOk() && image.SaveFile(name, type)) + return true; +#endif + const char* type_name = NULL; + switch (type) + { + case wxBITMAP_TYPE_BMP: type_name = "bmp"; break; + case wxBITMAP_TYPE_ICO: type_name = "ico"; break; + case wxBITMAP_TYPE_JPEG: type_name = "jpeg"; break; + case wxBITMAP_TYPE_PNG: type_name = "png"; break; + default: break; + } + return type_name && + gdk_pixbuf_save(GetPixbuf(), wxGTK_CONV_FN(name), type_name, NULL, NULL); +} + +bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type ) +{ +#if wxUSE_IMAGE + wxImage image; + if (image.LoadFile(name, type) && image.IsOk()) + *this = wxBitmap(image); + else +#endif + { + wxUnusedVar(type); // The type is detected automatically by GDK. + + *this = wxBitmap(gdk_pixbuf_new_from_file(wxGTK_CONV_FN(name), NULL)); + } + + return IsOk(); +} + +#if wxUSE_PALETTE +wxPalette *wxBitmap::GetPalette() const +{ + return NULL; +} + +void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette)) +{ + // TODO +} +#endif // wxUSE_PALETTE void wxBitmap::SetHeight( int height ) { - if (!Ok()) return; - M_BMPDATA->m_height = height; -}; + AllocExclusive(); + M_BMPDATA->m_height = height; +} void wxBitmap::SetWidth( int width ) { - if (!Ok()) return; - M_BMPDATA->m_width = width; -}; + AllocExclusive(); + M_BMPDATA->m_width = width; +} void wxBitmap::SetDepth( int depth ) { - if (!Ok()) return; - M_BMPDATA->m_bpp = depth; -}; + AllocExclusive(); + M_BMPDATA->m_bpp = depth; +} -wxMask *wxBitmap::GetMask(void) const +#ifndef __WXGTK3__ +void wxBitmap::SetPixmap( GdkPixmap *pixmap ) { - if (!Ok()) return NULL; - return M_BMPDATA->m_mask; -}; + UnRef(); -void wxBitmap::SetMask( wxMask *mask ) + if (!pixmap) + return; + + int w, h; + gdk_drawable_get_size(pixmap, &w, &h); + wxBitmapRefData* bmpData = new wxBitmapRefData(w, h, 0); + m_refData = bmpData; + bmpData->m_pixmap = pixmap; + bmpData->m_bpp = gdk_drawable_get_depth(pixmap); +} + +GdkPixmap *wxBitmap::GetPixmap() const { - if (!Ok()) return; - if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask; - M_BMPDATA->m_mask = mask; -}; + wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ); + + wxBitmapRefData* bmpData = M_BMPDATA; + if (bmpData->m_pixmap) + return bmpData->m_pixmap; + + if (bmpData->m_pixbuf) + { + GdkPixmap* pixmap = NULL; + GdkPixmap** mask_pixmap = NULL; + if (gdk_pixbuf_get_has_alpha(bmpData->m_pixbuf)) + { + // make new mask from alpha + mask_pixmap = &pixmap; + } + gdk_pixbuf_render_pixmap_and_mask( + bmpData->m_pixbuf, &bmpData->m_pixmap, mask_pixmap, 128); + if (pixmap) + { + delete bmpData->m_mask; + bmpData->m_mask = new wxMask(pixmap); + } + } + else + { + bmpData->m_pixmap = gdk_pixmap_new(wxGetRootWindow()->window, + bmpData->m_width, bmpData->m_height, bmpData->m_bpp == 1 ? 1 : -1); + } + return bmpData->m_pixmap; +} -bool wxBitmap::SaveFile( const wxString &WXUNUSED(name), int WXUNUSED(type), - wxPalette *WXUNUSED(palette) ) +bool wxBitmap::HasPixmap() const { - return FALSE; -}; + wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") ); + + return M_BMPDATA->m_pixmap != NULL; +} +#endif -bool wxBitmap::LoadFile( const wxString &name, int WXUNUSED(type) ) +#ifdef __WXGTK3__ +GdkPixbuf* wxBitmap::GetPixbufNoMask() const { -#ifdef USE_GDK_IMLIB + wxCHECK_MSG(IsOk(), NULL, "invalid bitmap"); - UnRef(); - m_refData = new wxBitmapRefData(); - M_BMPDATA->m_mask = NULL; + wxBitmapRefData* bmpData = M_BMPDATA; + GdkPixbuf* pixbuf = bmpData->m_pixbufNoMask; + if (pixbuf) + return pixbuf; - GdkBitmap *mask = NULL; - - int res = gdk_imlib_load_file_to_pixmap( WXSTRINGCAST name, &M_BMPDATA->m_pixmap, &mask ); + const int w = bmpData->m_width; + const int h = bmpData->m_height; + if (bmpData->m_surface) + pixbuf = gdk_pixbuf_get_from_surface(bmpData->m_surface, 0, 0, w, h); + else + pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, bmpData->m_bpp == 32, 8, w, h); + bmpData->m_pixbufNoMask = pixbuf; + wxASSERT(bmpData->m_bpp == 32 || !gdk_pixbuf_get_has_alpha(bmpData->m_pixbufNoMask)); - 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 - - return FALSE; -}; - -wxPalette *wxBitmap::GetPalette(void) const + return pixbuf; +} + +// helper to set up a simulated depth 1 surface +static void SetSourceSurface1(const wxBitmapRefData* bmpData, cairo_t* cr, int x, int y, const wxColour* fg, const wxColour* bg) { - if (!Ok()) return NULL; - return M_BMPDATA->m_palette; -}; + GdkPixbuf* pixbuf = gdk_pixbuf_copy(bmpData->m_pixbufNoMask); + const int w = bmpData->m_width; + const int h = bmpData->m_height; + const int stride = gdk_pixbuf_get_rowstride(pixbuf); + const int channels = gdk_pixbuf_get_n_channels(pixbuf); + guchar* dst = gdk_pixbuf_get_pixels(pixbuf); + guchar fg_r = 0, fg_g = 0, fg_b = 0; + if (fg && fg->IsOk()) + { + fg_r = fg->Red(); + fg_g = fg->Green(); + fg_b = fg->Blue(); + } + guchar bg_r = 255, bg_g = 255, bg_b = 255; + if (bg && bg->IsOk()) + { + bg_r = bg->Red(); + bg_g = bg->Green(); + bg_b = bg->Blue(); + } + for (int j = 0; j < h; j++, dst += stride) + { + guchar* d = dst; + for (int i = 0; i < w; i++, d += channels) + if (d[0]) + { + d[0] = bg_r; + d[1] = bg_g; + d[2] = bg_b; + } + else + { + d[0] = fg_r; + d[1] = fg_g; + d[2] = fg_b; + } + } + gdk_cairo_set_source_pixbuf(cr, pixbuf, x, y); + g_object_unref(pixbuf); +} -GdkPixmap *wxBitmap::GetPixmap(void) const +void wxBitmap::SetSourceSurface(cairo_t* cr, int x, int y, const wxColour* fg, const wxColour* bg) const { - if (!Ok()) return NULL; - return M_BMPDATA->m_pixmap; -}; - -GdkBitmap *wxBitmap::GetBitmap(void) const + wxBitmapRefData* bmpData = M_BMPDATA; + if (bmpData->m_surface) + { + cairo_set_source_surface(cr, bmpData->m_surface, x, y); + return; + } + wxCHECK_RET(bmpData->m_pixbufNoMask, "no bitmap data"); + if (bmpData->m_bpp == 1) + SetSourceSurface1(bmpData, cr, x, y, fg, bg); + else + { + gdk_cairo_set_source_pixbuf(cr, bmpData->m_pixbufNoMask, x, y); + cairo_pattern_get_surface(cairo_get_source(cr), &bmpData->m_surface); + cairo_surface_reference(bmpData->m_surface); + } +} + +cairo_t* wxBitmap::CairoCreate() const { - if (!Ok()) return NULL; - return M_BMPDATA->m_bitmap; -}; - + wxCHECK_MSG(IsOk(), NULL, "invalid bitmap"); + + wxBitmapRefData* bmpData = M_BMPDATA; + cairo_t* cr; + if (bmpData->m_surface) + cr = cairo_create(bmpData->m_surface); + else + { + GdkPixbuf* pixbuf = bmpData->m_pixbufNoMask; + const bool useAlpha = bmpData->m_bpp == 32 || (pixbuf && gdk_pixbuf_get_has_alpha(pixbuf)); + bmpData->m_surface = cairo_image_surface_create( + useAlpha ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24, + bmpData->m_width, bmpData->m_height); + cr = cairo_create(bmpData->m_surface); + if (pixbuf) + { + gdk_cairo_set_source_pixbuf(cr, pixbuf, 0, 0); + cairo_paint(cr); + cairo_set_source_rgb(cr, 0, 0, 0); + } + } + if (bmpData->m_pixbufNoMask) + { + g_object_unref(bmpData->m_pixbufNoMask); + bmpData->m_pixbufNoMask = NULL; + } + if (bmpData->m_pixbufMask) + { + g_object_unref(bmpData->m_pixbufMask); + bmpData->m_pixbufMask = NULL; + } + wxASSERT(cr && cairo_status(cr) == 0); + return cr; +} + +void wxBitmap::Draw(cairo_t* cr, int x, int y, bool useMask, const wxColour* fg, const wxColour* bg) const +{ + wxCHECK_RET(IsOk(), "invalid bitmap"); + + wxBitmapRefData* bmpData = M_BMPDATA; + SetSourceSurface(cr, x, y, fg, bg); + cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); + cairo_surface_t* mask = NULL; + if (useMask && bmpData->m_mask) + mask = bmpData->m_mask->GetBitmap(); + if (mask) + cairo_mask_surface(cr, mask, x, y); + else + cairo_paint(cr); +} +#endif + +GdkPixbuf *wxBitmap::GetPixbuf() const +{ + wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ); + + wxBitmapRefData* bmpData = M_BMPDATA; +#ifdef __WXGTK3__ + if (bmpData->m_pixbufMask) + return bmpData->m_pixbufMask; + + if (bmpData->m_pixbufNoMask == NULL) + GetPixbufNoMask(); + cairo_surface_t* mask = NULL; + if (bmpData->m_mask) + mask = bmpData->m_mask->GetBitmap(); + if (mask == NULL) + return bmpData->m_pixbufNoMask; + + const int w = bmpData->m_width; + const int h = bmpData->m_height; + bmpData->m_pixbufMask = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, w, h); + + guchar* dst = gdk_pixbuf_get_pixels(bmpData->m_pixbufMask); + const int dstStride = gdk_pixbuf_get_rowstride(bmpData->m_pixbufMask); + CopyImageData(dst, 4, dstStride, + gdk_pixbuf_get_pixels(bmpData->m_pixbufNoMask), + gdk_pixbuf_get_n_channels(bmpData->m_pixbufNoMask), + gdk_pixbuf_get_rowstride(bmpData->m_pixbufNoMask), + w, h); + + const guchar* src = cairo_image_surface_get_data(mask); + const int srcStride = cairo_image_surface_get_stride(mask); + for (int j = 0; j < h; j++, src += srcStride, dst += dstStride) + for (int i = 0; i < w; i++) + if (src[i] == 0) + dst[i * 4 + 3] = 0; + + return bmpData->m_pixbufMask; +#else + if (bmpData->m_pixbuf) + return bmpData->m_pixbuf; + + const int w = bmpData->m_width; + const int h = bmpData->m_height; + GdkPixmap* mask = NULL; + if (bmpData->m_mask) + mask = bmpData->m_mask->GetBitmap(); + const bool useAlpha = bmpData->m_alphaRequested || mask; + bmpData->m_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, useAlpha, 8, w, h); + if (bmpData->m_pixmap) + PixmapToPixbuf(bmpData->m_pixmap, bmpData->m_pixbuf, w, h); + if (mask) + MaskToAlpha(mask, bmpData->m_pixbuf, w, h); + return bmpData->m_pixbuf; +#endif +} + +#ifndef __WXGTK3__ +bool wxBitmap::HasPixbuf() const +{ + wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") ); + + return M_BMPDATA->m_pixbuf != NULL; +} + +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; + } +} +#endif + +#ifdef wxHAS_RAW_BITMAP +void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) +{ + void* bits = NULL; +#ifdef __WXGTK3__ + GdkPixbuf* pixbuf = GetPixbufNoMask(); + if ((bpp == 32) == (gdk_pixbuf_get_has_alpha(pixbuf) != 0)) + { + bits = gdk_pixbuf_get_pixels(pixbuf); + wxBitmapRefData* bmpData = M_BMPDATA; + data.m_width = bmpData->m_width; + data.m_height = bmpData->m_height; + data.m_stride = gdk_pixbuf_get_rowstride(pixbuf); + if (bmpData->m_pixbufMask) + { + g_object_unref(bmpData->m_pixbufMask); + bmpData->m_pixbufMask = NULL; + } + if (bmpData->m_surface) + { + cairo_surface_destroy(bmpData->m_surface); + bmpData->m_surface = NULL; + } + } +#else + 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); + } +#endif + return bits; +} + +void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data)) +{ +} +#endif // wxHAS_RAW_BITMAP + +bool wxBitmap::HasAlpha() const +{ + const wxBitmapRefData* bmpData = M_BMPDATA; +#ifdef __WXGTK3__ + return bmpData && bmpData->m_bpp == 32; +#else + return bmpData && (bmpData->m_alphaRequested || + (bmpData->m_pixbuf && gdk_pixbuf_get_has_alpha(bmpData->m_pixbuf))); +#endif +} + +wxGDIRefData* wxBitmap::CreateGDIRefData() const +{ + return new wxBitmapRefData(0, 0, 0); +} + +wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const +{ + const wxBitmapRefData* oldRef = static_cast(data); + wxBitmapRefData * const newRef = new wxBitmapRefData(oldRef->m_width, + oldRef->m_height, + oldRef->m_bpp); +#ifdef __WXGTK3__ + if (oldRef->m_pixbufNoMask) + newRef->m_pixbufNoMask = gdk_pixbuf_copy(oldRef->m_pixbufNoMask); + if (oldRef->m_surface) + { + const int w = oldRef->m_width; + const int h = oldRef->m_height; + cairo_surface_t* surface = cairo_image_surface_create( + cairo_image_surface_get_format(oldRef->m_surface), w, h); + newRef->m_surface = surface; + cairo_surface_flush(oldRef->m_surface); + const guchar* src = cairo_image_surface_get_data(oldRef->m_surface); + guchar* dst = cairo_image_surface_get_data(surface); + const int stride = cairo_image_surface_get_stride(surface); + wxASSERT(stride == cairo_image_surface_get_stride(oldRef->m_surface)); + memcpy(dst, src, stride * h); + cairo_surface_mark_dirty(surface); + } +#else + 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); + } +#endif + if (oldRef->m_mask != NULL) + { + newRef->m_mask = new wxMask(*oldRef->m_mask); + } + + return newRef; +} + +/* static */ void wxBitmap::InitStandardHandlers() +{ + // TODO: Insert handler based on GdkPixbufs handler later +}