#include "wx/module.h"
#endif
-#include "wx/graphics.h"
+#include "wx/private/graphics.h"
#include "wx/msw/wrapgdip.h"
#include "wx/stack.h"
virtual void StrokePath( const wxGraphicsPath& p );
virtual void FillPath( const wxGraphicsPath& p , int fillStyle = wxODDEVEN_RULE );
+ // 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, int fillStyle = wxODDEVEN_RULE );
+
virtual void Translate( wxDouble dx , wxDouble dy );
virtual void Scale( wxDouble xScale , wxDouble yScale );
virtual void Rotate( wxDouble angle );
virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const;
virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
+ virtual bool ShouldOffset() const;
private:
void Init();
DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
};
+class WXDLLIMPEXP_CORE wxGDIPlusMeasuringContext : public wxGDIPlusContext
+{
+public:
+ wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL) )
+ {
+ }
+ wxGDIPlusMeasuringContext()
+ {
+ }
+
+ virtual ~wxGDIPlusMeasuringContext()
+ {
+ ReleaseDC( NULL, m_hdc );
+ }
+
+private:
+ HDC m_hdc ;
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext)
+} ;
+
//-----------------------------------------------------------------------------
// wxGDIPlusPen implementation
//-----------------------------------------------------------------------------
void wxGDIPlusPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
{
double sweepAngle = endAngle - startAngle ;
- if( abs(sweepAngle) >= 2*M_PI)
+ if( fabs(sweepAngle) >= 2*M_PI)
{
sweepAngle = 2 * M_PI;
}
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext)
+IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusMeasuringContext,wxGDIPlusContext)
+
+class wxGDIPlusOffsetHelper
+{
+public :
+ wxGDIPlusOffsetHelper( Graphics* gr , bool offset )
+ {
+ m_gr = gr;
+ m_offset = offset;
+ if ( m_offset )
+ m_gr->TranslateTransform( 0.5, 0.5 );
+ }
+ ~wxGDIPlusOffsetHelper( )
+ {
+ if ( m_offset )
+ m_gr->TranslateTransform( -0.5, -0.5 );
+ }
+public :
+ Graphics* m_gr;
+ bool m_offset;
+} ;
wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc )
: wxGraphicsContext(renderer)
void wxGDIPlusContext::SetDefaults()
{
+ m_context->SetTextRenderingHint(TextRenderingHintSystemDefault);
+ m_context->SetPixelOffsetMode(PixelOffsetModeHalf);
m_context->SetSmoothingMode(SmoothingModeHighQuality);
m_state1 = m_context->Save();
m_state2 = m_context->Save();
m_context->ResetClip();
}
+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 );
+
+ } // 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, int WXUNUSED(fillStyle) )
+{
+ 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 (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_pen.IsNull() )
{
+ wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
m_context->DrawPath( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , (GraphicsPath*) path.GetNativePath() );
}
}
{
if ( !m_brush.IsNull() )
{
+ wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
((GraphicsPath*) path.GetNativePath())->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding);
m_context->FillPath( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() ,
(GraphicsPath*) path.GetNativePath());
else
{
image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
- if ( GetPixelFormatSize(image->GetPixelFormat()) == 32 )
+ if ( bmp.HasAlpha() && GetPixelFormatSize(image->GetPixelFormat()) == 32 )
{
size_t width = image->GetWidth();
size_t height = image->GetHeight();
helper->GetPixelFormat(),&data);
image = new Bitmap(data.Width, data.Height, data.Stride,
- PixelFormat32bppARGB , (BYTE*) data.Scan0);
+ PixelFormat32bppPARGB , (BYTE*) data.Scan0);
helper->UnlockBits(&data);
}
void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
+ // 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();
ICONINFO iconInfo ;
// IconInfo creates the bitmaps for color and mask, we must dispose of them after use
if (!GetIconInfo(hIcon,&iconInfo))
return;
- BITMAP iconBmpData ;
- GetObject(iconInfo.hbmColor,sizeof(BITMAP),&iconBmpData);
Bitmap interim(iconInfo.hbmColor,NULL);
Bitmap* image = NULL ;
+ // if it's not 32 bit, it doesn't have an alpha channel, note that since the conversion doesn't
+ // work correctly, asking IsAlphaPixelFormat at this point fails as well
if( GetPixelFormatSize(interim.GetPixelFormat())!= 32 )
{
image = Bitmap::FromHICON(hIcon);
interim.LockBits(&bounds, ImageLockModeRead,
interim.GetPixelFormat(),&data);
+
+ bool hasAlpha = false;
+ for ( size_t y = 0 ; y < height && !hasAlpha ; ++y)
+ {
+ for( size_t x = 0 ; x < width && !hasAlpha; ++x)
+ {
+ ARGB *dest = (ARGB*)((BYTE*)data.Scan0 + data.Stride*y + x*4);
+ if ( ( *dest & Color::AlphaMask ) != 0 )
+ hasAlpha = true;
+ }
+ }
+
+ if ( hasAlpha )
+ {
image = new Bitmap(data.Width, data.Height, data.Stride,
PixelFormat32bppARGB , (BYTE*) data.Scan0);
+ }
+ else
+ {
+ image = Bitmap::FromHICON(hIcon);
+ }
+
interim.UnlockBits(&data);
}
wxWCharBuffer s = str.wc_str( *wxConvUI );
m_context->DrawString( s , -1 , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont() ,
- PointF( x , y ) , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusBrush() );
- // TODO m_backgroundMode == wxSOLID
+ PointF( x , y ) , StringFormat::GenericTypographic() , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusBrush() );
}
void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
f->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
if ( height )
- *height = rHeight * factorY + 0.5 ;
+ *height = rHeight * factorY;
if ( descent )
- *descent = rDescent * factorY + 0.5 ;
+ *descent = rDescent * factorY;
if ( externalLeading )
- *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ;
+ *externalLeading = (rHeight - rAscent - rDescent) * factorY;
// measuring empty strings is not guaranteed, so do it by hand
if ( str.IsEmpty())
{
}
else
{
- // MeasureString does return a rectangle that is way too large, so it is
- // not usable here
RectF layoutRect(0,0, 100000.0f, 100000.0f);
- StringFormat strFormat;
- CharacterRange strRange(0,wcslen(s));
- strFormat.SetMeasurableCharacterRanges(1,&strRange);
- Region region ;
- m_context->MeasureCharacterRanges(s, -1 , f,layoutRect, &strFormat,1,®ion) ;
- RectF bbox ;
- region.GetBounds(&bbox,m_context);
+ StringFormat strFormat( StringFormat::GenericTypographic() );
+ strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
+
+ RectF bounds ;
+ m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, &strFormat, &bounds ) ;
if ( width )
- *width = bbox.GetRight()-bbox.GetLeft()+0.5;
+ *width = bounds.Width;
}
}
wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations"));
RectF layoutRect(0,0, 100000.0f, 100000.0f);
- StringFormat strFormat;
+ StringFormat strFormat( StringFormat::GenericTypographic() );
CharacterRange* ranges = new CharacterRange[len] ;
Region* regions = new Region[len];
- size_t i;
- for( i = 0 ; i < len ; ++i)
+ 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) ;
RectF bbox ;
- for ( i = 0 ; i < len ; ++i)
+ for ( size_t i = 0 ; i < len ; ++i)
{
regions[i].GetBounds(&bbox,m_context);
widths[i] = bbox.GetRight()-bbox.GetLeft();
}
}
+bool wxGDIPlusContext::ShouldOffset() const
+{
+ int penwidth = 0 ;
+ if ( !m_pen.IsNull() )
+ {
+ penwidth = (int)((wxGDIPlusPenData*)m_pen.GetRefData())->GetWidth();
+ if ( penwidth == 0 )
+ penwidth = 1;
+ }
+ return ( penwidth % 2 ) == 1;
+}
+
void* wxGDIPlusContext::GetNativeContext()
{
return m_context;
void EnsureIsLoaded();
void Load();
void Unload();
+ friend class wxGDIPlusRendererModule;
private :
bool m_loaded;
void wxGDIPlusRenderer::Unload()
{
if ( m_gditoken )
+ {
GdiplusShutdown(m_gditoken);
+ m_gditoken = NULL;
+ }
+ m_loaded = false;
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxWindowDC& dc)
{
EnsureIsLoaded();
- return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+ wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
+ return new wxGDIPlusContext(this,(HDC) msw->GetHDC());
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc)
{
EnsureIsLoaded();
- return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+ wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
+ return new wxGDIPlusContext(this,(HDC) msw->GetHDC());
}
wxGraphicsContext * wxGDIPlusRenderer::CreateMeasuringContext()
{
EnsureIsLoaded();
- return NULL;
- // TODO use GetDC(NULL) but then we have to release it from the context
- //return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+ return new wxGDIPlusMeasuringContext(this);
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeContext( void * context )
return wxNullGraphicsFont;
}
+// Shutdown GDI+ at app exit, before possible dll unload
+class wxGDIPlusRendererModule : public wxModule
+{
+public:
+ virtual bool OnInit() { return true; }
+ virtual void OnExit() { gs_GDIPlusRenderer.Unload(); }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxGDIPlusRendererModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule)
+
#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff