#include "wx/wxprec.h"
-#include "wx/dc.h"
-
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
+#include "wx/dc.h"
+
#if wxUSE_GRAPHICS_CONTEXT
#ifndef WX_PRECOMP
#include "wx/private/graphics.h"
#include "wx/msw/wrapgdip.h"
#include "wx/msw/dc.h"
+#include "wx/msw/enhmeta.h"
+#include "wx/dcgraph.h"
+
+#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
+
+#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
+#include <commdlg.h>
+#endif
#include "wx/stack.h"
WX_DECLARE_STACK(GraphicsState, GraphicsStates);
+namespace
+{
+
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
// Local functions
//-----------------------------------------------------------------------------
-static inline double dmin(double a, double b) { return a < b ? a : b; }
-static inline double dmax(double a, double b) { return a > b ? a : b; }
+inline double dmin(double a, double b) { return a < b ? a : b; }
+inline double dmax(double a, double b) { return a > b ? a : b; }
+
+inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
+inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; }
+
+// translate a wxColour to a Color
+inline Color wxColourToColor(const wxColour& col)
+{
+ return Color(col.Alpha(), col.Red(), col.Green(), col.Blue());
+}
-static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
-static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; }
+} // anonymous namespace
//-----------------------------------------------------------------------------
// device context implementation
// wxGraphicsPath implementation
//-----------------------------------------------------------------------------
-#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
-
-#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
-#include <commdlg.h>
-#endif
-
class wxGDIPlusPathData : public wxGraphicsPathData
{
public :
wxGDIPlusBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
~wxGDIPlusBrushData ();
- void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2 );
- void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor );
+ void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops);
+ void CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops);
+
virtual Brush* GetGDIPlusBrush() { return m_brush; }
protected:
virtual void Init();
-private :
+private:
+ // common part of Create{Linear,Radial}GradientBrush()
+ template <typename T>
+ void SetGradientStops(T *brush, const wxGraphicsGradientStops& stops);
+
Brush* m_brush;
Image* m_brushImage;
GraphicsPath* m_brushPath;
virtual void StrokePath( const wxGraphicsPath& p );
virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
- // stroke lines connecting each of the points
+ // stroke lines connecting each of the points
virtual void StrokeLines( size_t n, const wxPoint2DDouble *points);
// draws a polygon
virtual void DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
+ virtual bool SetAntialiasMode(wxAntialiasMode antialias);
+
+ virtual bool SetCompositionMode(wxCompositionMode op);
+
+ virtual void BeginLayer(wxDouble opacity);
+
+ virtual void EndLayer();
+
virtual void Translate( wxDouble dx , wxDouble dy );
virtual void Scale( wxDouble xScale , wxDouble yScale );
virtual void Rotate( wxDouble angle );
DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
};
-class WXDLLIMPEXP_CORE wxGDIPlusMeasuringContext : public wxGDIPlusContext
+class wxGDIPlusMeasuringContext : public wxGDIPlusContext
{
public:
wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
if (m_width <= 0.0)
m_width = 0.1;
- m_pen = new Pen(Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
- pen.GetColour().Green() , pen.GetColour().Blue() ), m_width );
+ m_pen = new Pen(wxColourToColor(pen.GetColour()), m_width );
LineCap cap;
switch ( pen.GetCap() )
break ;
}
- m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
- pen.GetColour().Green() , pen.GetColour().Blue() ), Color::Transparent );
+ m_penBrush = new HatchBrush
+ (
+ style,
+ wxColourToColor(pen.GetColour()),
+ Color::Transparent
+ );
m_pen->SetBrush( m_penBrush );
}
break;
Init();
if ( brush.GetStyle() == wxSOLID)
{
- m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
- brush.GetColour().Green() , brush.GetColour().Blue() ) );
+ m_brush = new SolidBrush(wxColourToColor( brush.GetColour()));
}
else if ( brush.IsHatch() )
{
break ;
}
- m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
- brush.GetColour().Green() , brush.GetColour().Blue() ), Color::Transparent );
+ m_brush = new HatchBrush
+ (
+ style,
+ wxColourToColor(brush.GetColour()),
+ Color::Transparent
+ );
}
else
{
m_brushPath= NULL;
}
-void wxGDIPlusBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2)
+template <typename T>
+void
+wxGDIPlusBrushData::SetGradientStops(T *brush,
+ const wxGraphicsGradientStops& stops)
+{
+ const unsigned numStops = stops.GetCount();
+ if ( numStops <= 2 )
+ {
+ // initial and final colours are set during the brush creation, nothing
+ // more to do
+ return;
+ }
+
+ wxVector<Color> colors(numStops);
+ wxVector<REAL> positions(numStops);
+
+ for ( unsigned i = 0; i < numStops; i++ )
+ {
+ wxGraphicsGradientStop stop = stops.Item(i);
+
+ colors[i] = wxColourToColor(stop.GetColour());
+ positions[i] = stop.GetPosition();
+ }
+
+ brush->SetInterpolationColors(&colors[0], &positions[0], numStops);
+}
+
+void
+wxGDIPlusBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
{
- m_brush = new LinearGradientBrush( PointF( x1,y1) , PointF( x2,y2),
- Color( c1.Alpha(), c1.Red(),c1.Green() , c1.Blue() ),
- Color( c2.Alpha(), c2.Red(),c2.Green() , c2.Blue() ));
+ LinearGradientBrush * const
+ brush = new LinearGradientBrush(PointF(x1, y1) , PointF(x2, y2),
+ wxColourToColor(stops.GetStartColour()),
+ wxColourToColor(stops.GetEndColour()));
+ m_brush = brush;
+
+ SetGradientStops(brush, stops);
}
-void wxGDIPlusBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+void
+wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops)
{
- // Create a path that consists of a single circle.
m_brushPath = new GraphicsPath();
- m_brushPath->AddEllipse( (REAL)(xc-radius), (REAL)(yc-radius), (REAL)(2*radius), (REAL)(2*radius));
+ m_brushPath->AddEllipse( (REAL)(xc-radius), (REAL)(yc-radius),
+ (REAL)(2*radius), (REAL)(2*radius));
- PathGradientBrush *b = new PathGradientBrush(m_brushPath);
- m_brush = b;
- b->SetCenterPoint( PointF(xo,yo));
- b->SetCenterColor(Color( oColor.Alpha(), oColor.Red(),oColor.Green() , oColor.Blue() ));
+ PathGradientBrush * const brush = new PathGradientBrush(m_brushPath);
+ m_brush = brush;
+ brush->SetCenterPoint(PointF(xo, yo));
+ brush->SetCenterColor(wxColourToColor(stops.GetStartColour()));
- Color colors[] = {Color( cColor.Alpha(), cColor.Red(),cColor.Green() , cColor.Blue() )};
+ const Color col(wxColourToColor(stops.GetEndColour()));
int count = 1;
- b->SetSurroundColors(colors, &count);
+ brush->SetSurroundColors(&col, &count);
+
+ SetGradientStops(brush, stops);
}
//-----------------------------------------------------------------------------
if ( font.GetWeight() == wxFONTWEIGHT_BOLD )
style |= FontStyleBold;
m_font = new Font( s , size , style );
- m_textBrush = new SolidBrush( Color( col.Alpha() , col.Red() ,
- col.Green() , col.Blue() ));
+ m_textBrush = new SolidBrush(wxColourToColor(col));
}
wxGDIPlusFontData::~wxGDIPlusFontData()
// add the rotation to this matrix (radians)
void wxGDIPlusMatrixData::Rotate( wxDouble angle )
{
- m_matrix->Rotate( angle );
+ m_matrix->Rotate( RadToDeg(angle) );
}
//
m_context->SetSmoothingMode(SmoothingModeHighQuality);
m_state1 = m_context->Save();
m_state2 = m_context->Save();
+
+ // Setup page scale, based on DPI ratio.
+ // Antecedent should be 100dpi when the default page unit (UnitDisplay)
+ // is used. Page unit UnitDocument would require 300dpi instead.
+ // Note that calling SetPageScale() does not have effect on non-printing
+ // DCs (that is, any other than wxPrinterDC or wxEnhMetaFileDC).
+ REAL dpiRatio = 100.0 / m_context->GetDpiY();
+ m_context->SetPageScale(dpiRatio);
}
wxGDIPlusContext::~wxGDIPlusContext()
void wxGDIPlusContext::StrokeLines( size_t n, const wxPoint2DDouble *points)
{
- if ( !m_pen.IsNull() )
- {
- wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
- Point *cpoints = new Point[n];
- for (size_t i = 0; i < n; i++)
- {
- cpoints[i].X = (int)(points[i].m_x );
- cpoints[i].Y = (int)(points[i].m_y );
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
- } // for (size_t i = 0; i < n; i++)
- m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
- delete[] cpoints;
- }
+ if ( !m_pen.IsNull() )
+ {
+ wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
+ Point *cpoints = new Point[n];
+ for (size_t i = 0; i < n; i++)
+ {
+ cpoints[i].X = (int)(points[i].m_x );
+ cpoints[i].Y = (int)(points[i].m_y );
+
+ } // for (size_t i = 0; i < n; i++)
+ m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
+ delete[] cpoints;
+ }
}
void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode WXUNUSED(fillStyle) )
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
- Point *cpoints = new Point[n];
- for (size_t i = 0; i < n; i++)
- {
- cpoints[i].X = (int)(points[i].m_x );
- cpoints[i].Y = (int)(points[i].m_y );
+ Point *cpoints = new Point[n];
+ for (size_t i = 0; i < n; i++)
+ {
+ cpoints[i].X = (int)(points[i].m_x );
+ cpoints[i].Y = (int)(points[i].m_y );
- } // for (int i = 0; i < n; i++)
- if ( !m_brush.IsNull() )
- m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ;
- if ( !m_pen.IsNull() )
- m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
- delete[] cpoints;
+ } // for (int i = 0; i < n; i++)
+ if ( !m_brush.IsNull() )
+ m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ;
+ if ( !m_pen.IsNull() )
+ m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
+ delete[] cpoints;
}
void wxGDIPlusContext::StrokePath( const wxGraphicsPath& path )
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
if ( !m_pen.IsNull() )
{
wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle )
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
if ( !m_brush.IsNull() )
{
wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
}
}
+bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias)
+{
+ if (m_antialias == antialias)
+ return true;
+
+ m_antialias = antialias;
+
+ SmoothingMode antialiasMode;
+ switch (antialias)
+ {
+ case wxANTIALIAS_DEFAULT:
+ antialiasMode = SmoothingModeHighQuality;
+ break;
+ case wxANTIALIAS_NONE:
+ antialiasMode = SmoothingModeNone;
+ break;
+ default:
+ return false;
+ }
+ m_context->SetSmoothingMode(antialiasMode);
+ return true;
+}
+
+bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op)
+{
+ if ( m_composition == op )
+ return true;
+
+ m_composition = op;
+
+ if (m_composition == wxCOMPOSITION_DEST)
+ return true;
+
+ CompositingMode cop;
+ switch (op)
+ {
+ case wxCOMPOSITION_SOURCE:
+ cop = CompositingModeSourceCopy;
+ break;
+ case wxCOMPOSITION_OVER:
+ cop = CompositingModeSourceOver;
+ break;
+ default:
+ return false;
+ }
+
+ m_context->SetCompositingMode(cop);
+ return true;
+}
+
+void wxGDIPlusContext::BeginLayer(wxDouble /* opacity */)
+{
+ // TODO
+}
+
+void wxGDIPlusContext::EndLayer()
+{
+ // TODO
+}
+
void wxGDIPlusContext::Rotate( wxDouble angle )
{
m_context->RotateTransform( RadToDeg(angle) );
void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
Bitmap* image = static_cast<wxGDIPlusBitmapData*>(bmp.GetRefData())->GetGDIPlusBitmap();
if ( image )
{
void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
// the built-in conversion fails when there is alpha in the HICON (eg XP style icons), we can only
// find out by looking at the bitmap data whether there really was alpha in it
HICON hIcon = (HICON)icon.GetHICON();
wxDouble x, wxDouble y,
const wxGraphicsBrush& brush)
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
wxCHECK_RET( !m_font.IsNull(),
wxT("wxGDIPlusContext::DrawText - no valid font set") );
m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, &strFormat, &bounds ) ;
if ( width )
*width = bounds.Width;
+ if ( height )
+ *height = bounds.Height;
}
}
RectF layoutRect(0,0, 100000.0f, 100000.0f);
StringFormat strFormat( StringFormat::GenericTypographic() );
- CharacterRange* ranges = new CharacterRange[len] ;
- Region* regions = new Region[len];
- for( size_t i = 0 ; i < len ; ++i)
- {
- ranges[i].First = i ;
- ranges[i].Length = 1 ;
- }
- strFormat.SetMeasurableCharacterRanges(len,ranges);
- strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
- m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,1,regions) ;
+ size_t startPosition = 0;
+ size_t remainder = len;
+ const size_t maxSpan = 32;
+ CharacterRange* ranges = new CharacterRange[maxSpan] ;
+ Region* regions = new Region[maxSpan];
- RectF bbox ;
- for ( size_t i = 0 ; i < len ; ++i)
+ while( remainder > 0 )
{
- regions[i].GetBounds(&bbox,m_context);
- widths[i] = bbox.GetRight()-bbox.GetLeft();
+ size_t span = wxMin( maxSpan, remainder );
+
+ for( size_t i = 0 ; i < span ; ++i)
+ {
+ ranges[i].First = 0 ;
+ ranges[i].Length = startPosition+i+1 ;
+ }
+ strFormat.SetMeasurableCharacterRanges(span,ranges);
+ strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
+ m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,span,regions) ;
+
+ RectF bbox ;
+ for ( size_t i = 0 ; i < span ; ++i)
+ {
+ regions[i].GetBounds(&bbox,m_context);
+ widths[startPosition+i] = bbox.Width;
+ }
+ remainder -= span;
+ startPosition += span;
}
+
+ delete[] ranges;
+ delete[] regions;
}
bool wxGDIPlusContext::ShouldOffset() const
virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
+ virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc);
+
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
- // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
- virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2) ;
-
- // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
- // with radius r and color cColor
- virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor) ;
+ virtual wxGraphicsBrush
+ CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops);
+ virtual wxGraphicsBrush
+ CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops);
// sets the font
virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
// 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 );
return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
}
+wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxEnhMetaFileDC& dc)
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
+ wxSize sz = dc.GetSize();
+ return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
+}
+
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc)
{
ENSURE_LOADED_OR_RETURN(NULL);
}
}
-// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-wxGraphicsBrush wxGDIPlusRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2)
+wxGraphicsBrush
+wxGDIPlusRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
{
ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
wxGraphicsBrush p;
wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
- d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
+ d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
p.SetRefData(d);
return p;
}
-// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
-// with radius r and color cColor
-wxGraphicsBrush wxGDIPlusRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+wxGraphicsBrush
+wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops)
{
ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
wxGraphicsBrush p;
wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
- d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
+ d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,stops);
p.SetRefData(d);
return p;
}
return wxNullGraphicsBitmap;
}
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ if ( bitmap != NULL )
+ {
+ wxGraphicsBitmap p;
+ p.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap*) bitmap ));
+ return p;
+ }
+ else
+ return wxNullGraphicsBitmap;
+}
+
wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule)
+// ----------------------------------------------------------------------------
+// wxMSW-specific parts of wxGCDC
+// ----------------------------------------------------------------------------
+
+WXHDC wxGCDC::AcquireHDC()
+{
+ wxGraphicsContext * const gc = GetGraphicsContext();
+ if ( !gc )
+ return NULL;
+
+ Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
+ return g ? g->GetHDC() : NULL;
+}
+
+void wxGCDC::ReleaseHDC(WXHDC hdc)
+{
+ if ( !hdc )
+ return;
+
+ wxGraphicsContext * const gc = GetGraphicsContext();
+ wxCHECK_RET( gc, "can't release HDC because there is no wxGraphicsContext" );
+
+ Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
+ wxCHECK_RET( g, "can't release HDC because there is no Graphics" );
+
+ g->ReleaseHDC((HDC)hdc);
+}
+
#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff