X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/aa6208d975c3757d75d780c661b4d7918236f4fb..9c20523110b6601abd001eb6316c563ff1b53af0:/src/generic/graphicc.cpp

diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp
index e2e63d632f..50965a5b99 100644
--- a/src/generic/graphicc.cpp
+++ b/src/generic/graphicc.cpp
@@ -286,6 +286,24 @@ private :
 #endif
 };
 
+class wxCairoBitmapData : public wxGraphicsObjectRefData
+{
+public:
+    wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp );
+    wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap );
+    ~wxCairoBitmapData();
+
+    virtual cairo_surface_t* GetCairoSurface() { return m_surface; }
+    virtual cairo_pattern_t* GetCairoPattern() { return m_pattern; }
+    virtual wxSize GetSize() { return wxSize(m_width, m_height); }
+private :
+    cairo_surface_t* m_surface;
+    cairo_pattern_t* m_pattern;
+    int m_width;
+    int m_height;
+    unsigned char* m_buffer;
+};
+
 class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext
 {
 public:
@@ -329,7 +347,7 @@ public:
     virtual void BeginLayer(wxDouble opacity);
 
     virtual void EndLayer();
-    
+
     virtual void StrokePath( const wxGraphicsPath& p );
     virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxWINDING_RULE );
 
@@ -346,6 +364,7 @@ public:
     // gets the matrix of this context
     virtual wxGraphicsMatrix GetTransform() const;
 
+    virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
     virtual void PushState();
@@ -362,7 +381,7 @@ private:
     void Init(cairo_t *context);
 
     cairo_t* m_context;
-    
+
     wxVector<float> m_layerOpacities;
 
     wxDECLARE_NO_COPY_CLASS(wxCairoContext);
@@ -993,6 +1012,102 @@ void * wxCairoMatrixData::GetNativeMatrix() const
     return (void*) &m_matrix;
 }
 
+// wxCairoBitmap implementation
+//-----------------------------------------------------------------------------
+
+wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) :
+    wxGraphicsObjectRefData( renderer )
+{
+    m_surface = bitmap;
+    m_pattern = cairo_pattern_create_for_surface(m_surface);
+}
+
+wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer )
+{
+    wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
+
+    int bw = bmp.GetWidth();
+    int bh = bmp.GetHeight();
+    wxBitmap bmpSource = bmp;  // we need a non-const instance
+    m_buffer = new unsigned char[bw*bh*4];
+    wxUint32* data = (wxUint32*)m_buffer;
+
+    // Create a surface object and copy the bitmap pixel data to it.  if the
+    // image has alpha (or a mask represented as alpha) then we'll use a
+    // different format and iterator than if it doesn't...
+    if (bmpSource.HasAlpha() || bmpSource.GetMask())
+    {
+        m_surface = cairo_image_surface_create_for_data(
+            m_buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4);
+        wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
+        wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
+
+        wxAlphaPixelData::Iterator p(pixData);
+        for (int y=0; y<bh; y++)
+        {
+            wxAlphaPixelData::Iterator rowStart = p;
+            for (int x=0; x<bw; x++)
+            {
+                // Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity,
+                // with alpha in the upper 8 bits, then red, then green, then
+                // blue. The 32-bit quantities are stored native-endian.
+                // Pre-multiplied alpha is used.
+                unsigned char alpha = p.Alpha();
+                if (alpha == 0)
+                    *data = 0;
+                else
+                    *data = ( alpha                      << 24
+                              | (p.Red() * alpha/255)    << 16
+                              | (p.Green() * alpha/255)  <<  8
+                              | (p.Blue() * alpha/255) );
+                ++data;
+                ++p;
+            }
+            p = rowStart;
+            p.OffsetY(pixData, 1);
+        }
+    }
+    else  // no alpha
+    {
+        m_surface = cairo_image_surface_create_for_data(
+            m_buffer, CAIRO_FORMAT_RGB24, bw, bh, bw*4);
+        wxNativePixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
+        wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
+
+        wxNativePixelData::Iterator p(pixData);
+        for (int y=0; y<bh; y++)
+        {
+            wxNativePixelData::Iterator rowStart = p;
+            for (int x=0; x<bw; x++)
+            {
+                // Each pixel in CAIRO_FORMAT_RGB24 is a 32-bit quantity, with
+                // the upper 8 bits unused. Red, Green, and Blue are stored in
+                // the remaining 24 bits in that order.  The 32-bit quantities
+                // are stored native-endian.
+                *data = ( p.Red() << 16 | p.Green() << 8 | p.Blue() );
+                ++data;
+                ++p;
+            }
+            p = rowStart;
+            p.OffsetY(pixData, 1);
+        }
+    }
+    m_pattern = cairo_pattern_create_for_surface(m_surface);
+}
+
+wxCairoBitmapData::~wxCairoBitmapData()
+{
+    if (m_pattern)
+        cairo_pattern_destroy(m_pattern);
+    
+    if (m_surface)
+        cairo_surface_destroy(m_surface);
+    
+    delete [] m_buffer;
+}
+
+
+
 //-----------------------------------------------------------------------------
 // wxCairoContext implementation
 //-----------------------------------------------------------------------------
@@ -1273,99 +1388,34 @@ void wxCairoContext::PopState()
 
 void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 {
-    wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
-
-    cairo_surface_t* surface;
-    int bw = bmp.GetWidth();
-    int bh = bmp.GetHeight();
-    wxBitmap bmpSource = bmp;  // we need a non-const instance
-    unsigned char* buffer = new unsigned char[bw*bh*4];
-    wxUint32* data = (wxUint32*)buffer;
-
-    // Create a surface object and copy the bitmap pixel data to it.  if the
-    // image has alpha (or a mask represented as alpha) then we'll use a
-    // different format and iterator than if it doesn't...
-    if (bmpSource.HasAlpha() || bmpSource.GetMask())
-    {
-        surface = cairo_image_surface_create_for_data(
-            buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4);
-        wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
-        wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
-
-        wxAlphaPixelData::Iterator p(pixData);
-        for (int y=0; y<bh; y++)
-        {
-            wxAlphaPixelData::Iterator rowStart = p;
-            for (int x=0; x<bw; x++)
-            {
-                // Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity,
-                // with alpha in the upper 8 bits, then red, then green, then
-                // blue. The 32-bit quantities are stored native-endian.
-                // Pre-multiplied alpha is used.
-                unsigned char alpha = p.Alpha();
-                if (alpha == 0)
-                    *data = 0;
-                else
-                    *data = ( alpha                      << 24
-                              | (p.Red() * alpha/255)    << 16
-                              | (p.Green() * alpha/255)  <<  8
-                              | (p.Blue() * alpha/255) );
-                ++data;
-                ++p;
-            }
-            p = rowStart;
-            p.OffsetY(pixData, 1);
-        }
-    }
-    else  // no alpha
-    {
-        surface = cairo_image_surface_create_for_data(
-            buffer, CAIRO_FORMAT_RGB24, bw, bh, bw*4);
-        wxNativePixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
-        wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
-
-        wxNativePixelData::Iterator p(pixData);
-        for (int y=0; y<bh; y++)
-        {
-            wxNativePixelData::Iterator rowStart = p;
-            for (int x=0; x<bw; x++)
-            {
-                // Each pixel in CAIRO_FORMAT_RGB24 is a 32-bit quantity, with
-                // the upper 8 bits unused. Red, Green, and Blue are stored in
-                // the remaining 24 bits in that order.  The 32-bit quantities
-                // are stored native-endian.
-                *data = ( p.Red() << 16 | p.Green() << 8 | p.Blue() );
-                ++data;
-                ++p;
-            }
-            p = rowStart;
-            p.OffsetY(pixData, 1);
-        }
-    }
+    wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
+    DrawBitmap(bitmap, x, y, w, h);
 
+}
 
+void wxCairoContext::DrawBitmap(const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
     PushState();
 
     // In case we're scaling the image by using a width and height different
     // than the bitmap's size create a pattern transformation on the surface and
     // draw the transformed pattern.
-    cairo_pattern_t* pattern = cairo_pattern_create_for_surface(surface);
-    wxDouble scaleX = w / bw;
-    wxDouble scaleY = h / bh;
+    wxCairoBitmapData* data = static_cast<wxCairoBitmapData*>(bmp.GetRefData());
+    cairo_pattern_t* pattern = data->GetCairoPattern();
+    wxSize size = data->GetSize();
+
+    wxDouble scaleX = w / size.GetWidth();
+    wxDouble scaleY = h / size.GetHeight();
     cairo_scale(m_context, scaleX, scaleY);
 
     // prepare to draw the image
     cairo_translate(m_context, x, y);
     cairo_set_source(m_context, pattern);
     // use the original size here since the context is scaled already...
-    cairo_rectangle(m_context, 0, 0, bw, bh);
+    cairo_rectangle(m_context, 0, 0, size.GetWidth(), size.GetHeight());
     // fill the rectangle using the pattern
     cairo_fill(m_context);
 
-    // clean up
-    cairo_pattern_destroy(pattern);
-    cairo_surface_destroy(surface);
-    delete [] buffer;
     PopState();
 }
 
@@ -1399,8 +1449,8 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y)
     wxCairoFontData* font_data = (wxCairoFontData*) m_font.GetRefData();
     pango_layout_set_font_description( layout, font_data->GetFont());
     pango_layout_set_text(layout, data, datalen);
-    
-    if (font_data->GetUnderlined()) 
+
+    if (font_data->GetUnderlined())
     {
         PangoAttrList *attrs = pango_attr_list_new();
         PangoAttribute *attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
@@ -1526,7 +1576,7 @@ bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias)
         return true;
 
     m_antialias = antialias;
-    
+
     cairo_antialias_t antialiasMode;
     switch (antialias)
     {
@@ -1547,7 +1597,7 @@ bool wxCairoContext::SetCompositionMode(wxCompositionMode op)
 {
     if ( m_composition == op )
         return true;
-        
+
     m_composition = op;
     cairo_operator_t cop;
     switch (op)
@@ -1611,7 +1661,7 @@ void wxCairoContext::EndLayer()
     cairo_pop_group_to_source(m_context);
     cairo_paint_with_alpha(m_context,opacity);
 }
-    
+
 //-----------------------------------------------------------------------------
 // wxCairoRenderer declaration
 //-----------------------------------------------------------------------------
@@ -1664,18 +1714,13 @@ public :
     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
 
     // create a native bitmap representation
-#if 0
-    virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap )
-    {
-      return wxGraphicsBitmap;
-    }
+    virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
+
+    // create a graphics bitmap from a native bitmap
+    virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
 
     // create a subimage from a native image representation
-    virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
-    {
-      return wxGraphicsBitmap;
-    }
-#endif
+    virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  );
 
 private :
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer)
@@ -1738,6 +1783,9 @@ wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * windo
 
 wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext()
 {
+#ifdef __WXGTK__
+    return CreateContextFromNativeWindow(gdk_get_default_root_window());
+#endif
     return NULL;
     // TODO
 }
@@ -1830,4 +1878,39 @@ wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour
         return wxNullGraphicsFont;
 }
 
+wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp )
+{
+    if ( bmp.Ok() )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxCairoBitmapData( this , bmp ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
+{
+    if ( bitmap != NULL )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+wxGraphicsBitmap
+wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap),
+                                 wxDouble WXUNUSED(x),
+                                 wxDouble WXUNUSED(y),
+                                 wxDouble WXUNUSED(w),
+                                 wxDouble WXUNUSED(h))
+{
+    wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented.");
+    return wxNullGraphicsBitmap;
+}
+
 #endif  // wxUSE_GRAPHICS_CONTEXT