Improved handling of anchors in wxHTML: scroll to better position (patch #11406).

[wxWidgets.git] / src / generic / graphicc.cpp

diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp
index f3c5a1f8d8d3db6231918df7ef2c28029403a231..50965a5b998ac4ba99c7a93fcb8d9a7335d1cd17 100644 (file)
--- a/src/generic/graphicc.cpp
+++ b/src/generic/graphicc.cpp
@@ -290,6 +290,7 @@ 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; }
@@ -346,7 +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 );
 
@@ -380,7 +381,7 @@ private:
     void Init(cairo_t *context);
 
     cairo_t* m_context;
-    
+
     wxVector<float> m_layerOpacities;
 
     wxDECLARE_NO_COPY_CLASS(wxCairoContext);
@@ -1014,11 +1015,17 @@ void * wxCairoMatrixData::GetNativeMatrix() const
 // 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"));
 
-    cairo_surface_t* surface;
     int bw = bmp.GetWidth();
     int bh = bmp.GetHeight();
     wxBitmap bmpSource = bmp;  // we need a non-const instance
@@ -1085,12 +1092,17 @@ wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitm
             p.OffsetY(pixData, 1);
         }
     }
+    m_pattern = cairo_pattern_create_for_surface(m_surface);
 }
 
 wxCairoBitmapData::~wxCairoBitmapData()
 {
-    cairo_pattern_destroy(m_pattern);
-    cairo_surface_destroy(m_surface);
+    if (m_pattern)
+        cairo_pattern_destroy(m_pattern);
+    
+    if (m_surface)
+        cairo_surface_destroy(m_surface);
+    
     delete [] m_buffer;
 }
 
@@ -1437,8 +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);
@@ -1564,7 +1576,7 @@ bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias)
         return true;
 
     m_antialias = antialias;
-    
+
     cairo_antialias_t antialiasMode;
     switch (antialias)
     {
@@ -1585,7 +1597,7 @@ bool wxCairoContext::SetCompositionMode(wxCompositionMode op)
 {
     if ( m_composition == op )
         return true;
-        
+
     m_composition = op;
     cairo_operator_t cop;
     switch (op)
@@ -1649,7 +1661,7 @@ void wxCairoContext::EndLayer()
     cairo_pop_group_to_source(m_context);
     cairo_paint_with_alpha(m_context,opacity);
 }
-    
+
 //-----------------------------------------------------------------------------
 // wxCairoRenderer declaration
 //-----------------------------------------------------------------------------
@@ -1704,6 +1716,9 @@ public :
     // create a native bitmap representation
     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  );
 
@@ -1863,7 +1878,7 @@ wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour
         return wxNullGraphicsFont;
 }
 
-wxGraphicsBitmap wxGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
+wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp )
 {
     if ( bmp.Ok() )
     {
@@ -1875,7 +1890,24 @@ wxGraphicsBitmap wxGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
         return wxNullGraphicsBitmap;
 }
 
-wxGraphicsBitmap wxGraphicsRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
+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;