#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/msw/wrapcdlg.h"
#include "wx/image.h"
#include "wx/window.h"
- #include "wx/dc.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/app.h"
#include "wx/bitmap.h"
- #include "wx/dcmemory.h"
#include "wx/log.h"
#include "wx/icon.h"
- #include "wx/dcprint.h"
#include "wx/module.h"
+ // include all dc types that are used as a param
+ #include "wx/dc.h"
+ #include "wx/dcclient.h"
+ #include "wx/dcmemory.h"
+ #include "wx/dcprint.h"
#endif
-#include "wx/graphics.h"
+#include "wx/private/graphics.h"
#include "wx/msw/wrapgdip.h"
+#include "wx/msw/dc.h"
#include "wx/stack.h"
// gets the bounding box enclosing all points (possibly including control points)
virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const;
- virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
+ virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
private :
GraphicsPath* m_path;
GraphicsPath* m_brushPath;
};
+class WXDLLIMPEXP_CORE wxGDIPlusBitmapData : public wxGraphicsObjectRefData
+{
+public:
+ wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap );
+ wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, const wxBitmap &bmp );
+ ~wxGDIPlusBitmapData ();
+
+ virtual Bitmap* GetGDIPlusBitmap() { return m_bitmap; }
+
+private :
+ Bitmap* m_bitmap;
+ Bitmap* m_helper;
+};
+
class wxGDIPlusFontData : public wxGraphicsObjectRefData
{
public:
class wxGDIPlusContext : public wxGraphicsContext
{
public:
- wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc );
+ wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc , wxDouble width, wxDouble height );
wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd );
wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr);
wxGDIPlusContext();
virtual void * GetNativeContext();
virtual void StrokePath( const wxGraphicsPath& p );
- virtual void FillPath( const wxGraphicsPath& p , int fillStyle = wxODDEVEN_RULE );
+ virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode 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, 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 );
// 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();
virtual void PopState();
- virtual void DrawText( const wxString &str, wxDouble x, wxDouble y);
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;
+ virtual void GetSize( wxDouble* width, wxDouble *height );
private:
void Init();
void SetDefaults();
+ virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y)
+ { DoDrawFilledText(str, x, y, wxNullGraphicsBrush); }
+ virtual void DoDrawFilledText(const wxString& str, wxDouble x, wxDouble y,
+ const wxGraphicsBrush& backgroundBrush);
+
Graphics* m_context;
GraphicsStates m_stateStack;
GraphicsState m_state1;
GraphicsState m_state2;
+ wxDouble m_width;
+ wxDouble m_height;
+
DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
};
+class wxGDIPlusMeasuringContext : public wxGDIPlusContext
+{
+public:
+ wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
+ {
+ }
+ wxGDIPlusMeasuringContext()
+ {
+ }
+
+ virtual ~wxGDIPlusMeasuringContext()
+ {
+ ReleaseDC( NULL, m_hdc );
+ }
+
+private:
+ HDC m_hdc ;
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext)
+} ;
+
//-----------------------------------------------------------------------------
// wxGDIPlusPen implementation
//-----------------------------------------------------------------------------
delete m_font;
}
+// the built-in conversions functions create non-premultiplied bitmaps, while GDIPlus needs them in the
+// premultiplied format, therefore in the failing cases we create a new bitmap using the non-premultiplied
+// bytes as parameter, since there is no real copying of the data going in, only references are stored
+// m_helper has to be kept alive as well
+
+//-----------------------------------------------------------------------------
+// wxGDIPlusBitmapData implementation
+//-----------------------------------------------------------------------------
+
+wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ) :
+ wxGraphicsObjectRefData( renderer ), m_bitmap( bitmap )
+{
+ m_helper = NULL;
+}
+
+wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer,
+ const wxBitmap &bmp) : wxGraphicsObjectRefData( renderer )
+{
+ m_bitmap = NULL;
+ m_helper = NULL;
+
+ Bitmap* image = NULL;
+ if ( bmp.GetMask() )
+ {
+ Bitmap interim((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()) ;
+
+ size_t width = interim.GetWidth();
+ size_t height = interim.GetHeight();
+ Rect bounds(0,0,width,height);
+
+ image = new Bitmap(width,height,PixelFormat32bppPARGB) ;
+
+ Bitmap interimMask((HBITMAP)bmp.GetMask()->GetMaskBitmap(),NULL);
+ wxASSERT(interimMask.GetPixelFormat() == PixelFormat1bppIndexed);
+
+ BitmapData dataMask ;
+ interimMask.LockBits(&bounds,ImageLockModeRead,
+ interimMask.GetPixelFormat(),&dataMask);
+
+
+ BitmapData imageData ;
+ image->LockBits(&bounds,ImageLockModeWrite, PixelFormat32bppPARGB, &imageData);
+
+ BYTE maskPattern = 0 ;
+ BYTE maskByte = 0;
+ size_t maskIndex ;
+
+ for ( size_t y = 0 ; y < height ; ++y)
+ {
+ maskIndex = 0 ;
+ for( size_t x = 0 ; x < width; ++x)
+ {
+ if ( x % 8 == 0)
+ {
+ maskPattern = 0x80;
+ maskByte = *((BYTE*)dataMask.Scan0 + dataMask.Stride*y + maskIndex);
+ maskIndex++;
+ }
+ else
+ maskPattern = maskPattern >> 1;
+
+ ARGB *dest = (ARGB*)((BYTE*)imageData.Scan0 + imageData.Stride*y + x*4);
+ if ( (maskByte & maskPattern) == 0 )
+ *dest = 0x00000000;
+ else
+ {
+ Color c ;
+ interim.GetPixel(x,y,&c) ;
+ *dest = (c.GetValue() | Color::AlphaMask);
+ }
+ }
+ }
+
+ image->UnlockBits(&imageData);
+
+ interimMask.UnlockBits(&dataMask);
+ interim.UnlockBits(&dataMask);
+ }
+ else
+ {
+ image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
+ if ( bmp.HasAlpha() && GetPixelFormatSize(image->GetPixelFormat()) == 32 )
+ {
+ size_t width = image->GetWidth();
+ size_t height = image->GetHeight();
+ Rect bounds(0,0,width,height);
+ static BitmapData data ;
+
+ m_helper = image ;
+ image = NULL ;
+ m_helper->LockBits(&bounds, ImageLockModeRead,
+ m_helper->GetPixelFormat(),&data);
+
+ image = new Bitmap(data.Width, data.Height, data.Stride,
+ PixelFormat32bppPARGB , (BYTE*) data.Scan0);
+
+ m_helper->UnlockBits(&data);
+ }
+ }
+ if ( image )
+ m_bitmap = image;
+}
+
+wxGDIPlusBitmapData::~wxGDIPlusBitmapData()
+{
+ delete m_bitmap;
+ delete m_helper;
+}
+
//-----------------------------------------------------------------------------
// wxGDIPlusPath implementation
//-----------------------------------------------------------------------------
*h = bounds.Height;
}
-bool wxGDIPlusPathData::Contains( wxDouble x, wxDouble y, int fillStyle ) const
+bool wxGDIPlusPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
{
m_path->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding);
return m_path->IsVisible( (FLOAT) x,(FLOAT) y) == TRUE ;
//-----------------------------------------------------------------------------
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 )
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height )
: wxGraphicsContext(renderer)
{
Init();
m_context = new Graphics( hdc);
+ m_width = width;
+ m_height = height;
SetDefaults();
}
{
Init();
m_context = new Graphics( hwnd);
+ RECT rect = wxGetWindowRect(hwnd);
+ m_width = rect.right - rect.left;
+ m_height = rect.bottom - rect.top;
SetDefaults();
}
m_context = NULL;
m_state1 = 0;
m_state2= 0;
+ m_height = 0;
+ m_width = 0;
}
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_composition == wxCOMPOSITION_DEST)
+ return;
+
+ 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 );
+
+ } // 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() );
m_context->DrawPath( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , (GraphicsPath*) path.GetNativePath() );
}
}
-void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , int fillStyle )
+void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle )
{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
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());
}
}
+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) );
m_context->Restore(state);
}
-// the built-in conversions functions create non-premultiplied bitmaps, while GDIPlus needs them in the
-// premultiplied format, therefore in the failing cases we create a new bitmap using the non-premultiplied
-// bytes as parameter
-
-void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- Bitmap* image = NULL;
- Bitmap* helper = NULL;
- if ( bmp.GetMask() )
- {
- Bitmap interim((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()) ;
-
- size_t width = interim.GetWidth();
- size_t height = interim.GetHeight();
- Rect bounds(0,0,width,height);
-
- image = new Bitmap(width,height,PixelFormat32bppPARGB) ;
-
- Bitmap interimMask((HBITMAP)bmp.GetMask()->GetMaskBitmap(),NULL);
- wxASSERT(interimMask.GetPixelFormat() == PixelFormat1bppIndexed);
-
- BitmapData dataMask ;
- interimMask.LockBits(&bounds,ImageLockModeRead,
- interimMask.GetPixelFormat(),&dataMask);
-
-
- BitmapData imageData ;
- image->LockBits(&bounds,ImageLockModeWrite, PixelFormat32bppPARGB, &imageData);
-
- BYTE maskPattern = 0 ;
- BYTE maskByte = 0;
- size_t maskIndex ;
-
- for ( size_t y = 0 ; y < height ; ++y)
- {
- maskIndex = 0 ;
- for( size_t x = 0 ; x < width; ++x)
- {
- if ( x % 8 == 0)
- {
- maskPattern = 0x80;
- maskByte = *((BYTE*)dataMask.Scan0 + dataMask.Stride*y + maskIndex);
- maskIndex++;
- }
- else
- maskPattern = maskPattern >> 1;
-
- ARGB *dest = (ARGB*)((BYTE*)imageData.Scan0 + imageData.Stride*y + x*4);
- if ( (maskByte & maskPattern) == 0 )
- *dest = 0x00000000;
- else
- {
- Color c ;
- interim.GetPixel(x,y,&c) ;
- *dest = (c.GetValue() | Color::AlphaMask);
- }
- }
- }
-
- image->UnlockBits(&imageData);
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
- interimMask.UnlockBits(&dataMask);
- interim.UnlockBits(&dataMask);
- }
- else
+ Bitmap* image = static_cast<wxGDIPlusBitmapData*>(bmp.GetRefData())->GetGDIPlusBitmap();
+ if ( image )
{
- image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
- if ( GetPixelFormatSize(image->GetPixelFormat()) == 32 )
+ if( image->GetWidth() != (UINT) w || image->GetHeight() != (UINT) h )
{
- size_t width = image->GetWidth();
- size_t height = image->GetHeight();
- Rect bounds(0,0,width,height);
- BitmapData data ;
-
- helper = image ;
- image = NULL ;
- helper->LockBits(&bounds, ImageLockModeRead,
- helper->GetPixelFormat(),&data);
-
- image = new Bitmap(data.Width, data.Height, data.Stride,
- PixelFormat32bppPARGB , (BYTE*) data.Scan0);
-
- helper->UnlockBits(&data);
+ Rect drawRect((REAL) x, (REAL)y, (REAL)w, (REAL)h);
+ m_context->SetPixelOffsetMode( PixelOffsetModeNone );
+ m_context->DrawImage(image, drawRect, 0 , 0 , image->GetWidth()-1, image->GetHeight()-1, UnitPixel ) ;
+ m_context->SetPixelOffsetMode( PixelOffsetModeHalf );
}
+ else
+ m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
}
- if ( image )
- m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
- delete image ;
- delete helper ;
+}
+
+void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+ wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
+ DrawBitmap(bitmap, x, y, w, h);
}
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();
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);
}
DeleteObject(iconInfo.hbmMask);
}
-void wxGDIPlusContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
+void wxGDIPlusContext::DoDrawFilledText(const wxString& str,
+ wxDouble x, wxDouble y,
+ const wxGraphicsBrush& brush)
{
- if ( m_font.IsNull() || str.IsEmpty())
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
+ wxCHECK_RET( !m_font.IsNull(),
+ wxT("wxGDIPlusContext::DrawText - no valid font set") );
+
+ if ( str.IsEmpty())
return ;
- 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
+ wxGDIPlusFontData * const
+ fontData = (wxGDIPlusFontData *)m_font.GetRefData();
+ wxGDIPlusBrushData * const
+ brushData = (wxGDIPlusBrushData *)brush.GetRefData();
+
+ m_context->DrawString
+ (
+ str.wc_str(*wxConvUI), // string to draw, always Unicode
+ -1, // length: string is NUL-terminated
+ fontData->GetGDIPlusFont(),
+ PointF(x, y),
+ StringFormat::GenericTypographic(),
+ brushData ? brushData->GetGDIPlusBrush()
+ : fontData->GetGDIPlusBrush()
+ );
}
void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const
{
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetTextExtent - no valid font set") );
+
wxWCharBuffer s = str.wc_str( *wxConvUI );
FontFamily ffamily ;
Font* f = ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont();
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;
}
}
widths.Empty();
widths.Add(0, text.length());
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetPartialTextExtents - no valid font set") );
+
if (text.empty())
return;
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() )
{
m_context->GetTransform((Matrix*) matrix.GetNativeMatrix());
return matrix;
}
+
+void wxGDIPlusContext::GetSize( wxDouble* width, wxDouble *height )
+{
+ *width = m_width;
+ *height = m_height;
+}
//-----------------------------------------------------------------------------
// wxGDIPlusRenderer declaration
//-----------------------------------------------------------------------------
public :
wxGDIPlusRenderer()
{
- m_loaded = false;
+ m_loaded = -1;
m_gditoken = 0;
}
virtual ~wxGDIPlusRenderer()
{
- if (m_loaded)
+ if ( m_loaded == 1 )
{
Unload();
}
virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
+ virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
+
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
// 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 subimage from a native image representation
+ virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
+
protected :
- void EnsureIsLoaded();
+ bool EnsureIsLoaded();
void Load();
void Unload();
friend class wxGDIPlusRendererModule;
private :
- bool m_loaded;
+ int m_loaded;
ULONG_PTR m_gditoken;
DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusRenderer)
return &gs_GDIPlusRenderer;
}
-void wxGDIPlusRenderer::EnsureIsLoaded()
+bool wxGDIPlusRenderer::EnsureIsLoaded()
{
- if (!m_loaded)
+ // load gdiplus.dll if not yet loaded, but don't bother doing it again
+ // if we already tried and failed (we don't want to spend lot of time
+ // returning NULL from wxGraphicsContext::Create(), which may be called
+ // relatively frequently):
+ if ( m_loaded == -1 )
{
Load();
}
+
+ return m_loaded == 1;
}
+// call EnsureIsLoaded() and return returnOnFail value if it fails
+#define ENSURE_LOADED_OR_RETURN(returnOnFail) \
+ if ( !EnsureIsLoaded() ) \
+ return (returnOnFail)
+
+
void wxGDIPlusRenderer::Load()
{
GdiplusStartupInput input;
GdiplusStartupOutput output;
- GdiplusStartup(&m_gditoken,&input,&output);
- m_loaded = true;
+ if ( GdiplusStartup(&m_gditoken,&input,&output) == Gdiplus::Ok )
+ {
+ wxLogTrace("gdiplus", "successfully initialized GDI+");
+ m_loaded = 1;
+ }
+ else
+ {
+ wxLogTrace("gdiplus", "failed to initialize GDI+, missing gdiplus.dll?");
+ m_loaded = 0;
+ }
}
void wxGDIPlusRenderer::Unload()
GdiplusShutdown(m_gditoken);
m_gditoken = NULL;
}
- m_loaded = false;
+ m_loaded = -1; // next Load() will try again
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxWindowDC& dc)
{
- EnsureIsLoaded();
- return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+ 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 wxPrinterDC& 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)
{
- EnsureIsLoaded();
- return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+ 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::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());
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxGDIPlusMeasuringContext(this);
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeContext( void * context )
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(NULL);
return new wxGDIPlusContext(this,(Graphics*) context);
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeWindow( void * window )
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(NULL);
return new wxGDIPlusContext(this,(HWND) window);
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( wxWindow* window )
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(NULL);
return new wxGDIPlusContext(this, (HWND) window->GetHWND() );
}
wxGraphicsPath wxGDIPlusRenderer::CreatePath()
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath);
wxGraphicsPath m;
m.SetRefData( new wxGDIPlusPathData(this));
return m;
wxDouble tx, wxDouble ty)
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix);
wxGraphicsMatrix m;
wxGDIPlusMatrixData* data = new wxGDIPlusMatrixData( this );
data->Set( a,b,c,d,tx,ty ) ;
wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen)
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen);
if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
return wxNullGraphicsPen;
else
wxGraphicsBrush wxGDIPlusRenderer::CreateBrush(const wxBrush& brush )
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
return wxNullGraphicsBrush;
else
wxGraphicsBrush wxGDIPlusRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
const wxColour&c1, const wxColour&c2)
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
wxGraphicsBrush p;
wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
wxGraphicsBrush wxGDIPlusRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
const wxColour &oColor, const wxColour &cColor)
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
wxGraphicsBrush p;
wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
// sets the font
wxGraphicsFont wxGDIPlusRenderer::CreateFont( const wxFont &font , const wxColour &col )
{
- EnsureIsLoaded();
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
if ( font.Ok() )
{
wxGraphicsFont p;
return wxNullGraphicsFont;
}
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ if ( bitmap.Ok() )
+ {
+ wxGraphicsBitmap p;
+ p.SetRefData(new wxGDIPlusBitmapData( this , 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);
+ Bitmap* image = static_cast<wxGDIPlusBitmapData*>(bitmap.GetRefData())->GetGDIPlusBitmap();
+ if ( image )
+ {
+ wxGraphicsBitmap p;
+ p.SetRefData(new wxGDIPlusBitmapData( this , image->Clone( (REAL) x , (REAL) y , (REAL) w , (REAL) h , PixelFormat32bppPARGB) ));
+ return p;
+ }
+ else
+ return wxNullGraphicsBitmap;
+}
+
// Shutdown GDI+ at app exit, before possible dll unload
class wxGDIPlusRendererModule : public wxModule
{
projects / wxWidgets.git / blobdiff