/////////////////////////////////////////////////////////////////////////////
-// Name: src/common/graphcmn.cpp
+// Name: src/common/dcgraph.cpp
// Purpose: graphics context methods common to all platforms
// Author: Stefan Csomor
// Modified by:
-// Created:
+// Created:
// RCS-ID: $Id$
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
#if wxUSE_GRAPHICS_CONTEXT
-#include "wx/graphics.h"
+#include "wx/dcgraph.h"
#ifndef WX_PRECOMP
#include "wx/icon.h"
- #include "wx/bitmap.h"
+ #include "wx/dcclient.h"
#include "wx/dcmemory.h"
- #include "wx/region.h"
#endif
//-----------------------------------------------------------------------------
return (deg * M_PI) / 180.0;
}
+static wxCompositionMode TranslateRasterOp(wxRasterOperationMode function)
+{
+ switch ( function )
+ {
+ case wxCOPY: // src
+ // since we are supporting alpha, _OVER is closer to the intention than _SOURCE
+ // since the latter would overwrite even when alpha is not set to opaque
+ return wxCOMPOSITION_OVER;
+
+ case wxOR: // src OR dst
+ return wxCOMPOSITION_ADD;
+
+ case wxNO_OP: // dst
+ return wxCOMPOSITION_DEST; // ignore the source
+
+ case wxCLEAR: // 0
+ return wxCOMPOSITION_CLEAR;// clear dst
+
+ case wxXOR: // src XOR dst
+ return wxCOMPOSITION_XOR;
+
+ case wxAND: // src AND dst
+ case wxAND_INVERT: // (NOT src) AND dst
+ case wxAND_REVERSE:// src AND (NOT dst)
+ case wxEQUIV: // (NOT src) XOR dst
+ case wxINVERT: // NOT dst
+ case wxNAND: // (NOT src) OR (NOT dst)
+ case wxNOR: // (NOT src) AND (NOT dst)
+ case wxOR_INVERT: // (NOT src) OR dst
+ case wxOR_REVERSE: // src OR (NOT dst)
+ case wxSET: // 1
+ case wxSRC_INVERT: // NOT src
+ break;
+ }
+
+ return wxCOMPOSITION_INVALID;
+}
+
//-----------------------------------------------------------------------------
// wxDC bridge class
//-----------------------------------------------------------------------------
-#ifdef __WXMAC__
-IMPLEMENT_DYNAMIC_CLASS(wxGCDC, wxDCBase)
-#else
IMPLEMENT_DYNAMIC_CLASS(wxGCDC, wxDC)
+
+wxGCDC::wxGCDC(const wxWindowDC& dc) :
+ wxDC( new wxGCDCImpl( this, dc ) )
+{
+}
+
+wxGCDC::wxGCDC( const wxMemoryDC& dc) :
+ wxDC( new wxGCDCImpl( this, dc ) )
+{
+}
+
+#if wxUSE_PRINTING_ARCHITECTURE
+wxGCDC::wxGCDC( const wxPrinterDC& dc) :
+ wxDC( new wxGCDCImpl( this, dc ) )
+{
+}
#endif
-wxGCDC::wxGCDC()
+#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
+wxGCDC::wxGCDC(const wxEnhMetaFileDC& dc)
+ : wxDC(new wxGCDCImpl(this, dc))
+{
+}
+#endif
+
+wxGCDC::wxGCDC(wxGraphicsContext* context) :
+ wxDC( new wxGCDCImpl( this ) )
+{
+ SetGraphicsContext(context);
+}
+
+wxGCDC::wxGCDC() :
+ wxDC( new wxGCDCImpl( this ) )
+{
+}
+
+wxGCDC::~wxGCDC()
+{
+}
+
+wxGraphicsContext* wxGCDC::GetGraphicsContext() const
{
- Init();
+ if (!m_pimpl) return NULL;
+ wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl;
+ return gc_impl->GetGraphicsContext();
}
void wxGCDC::SetGraphicsContext( wxGraphicsContext* ctx )
-{
+{
+ if (!m_pimpl) return;
+ wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl;
+ gc_impl->SetGraphicsContext( ctx );
+}
+
+IMPLEMENT_ABSTRACT_CLASS(wxGCDCImpl, wxDCImpl)
+
+wxGCDCImpl::wxGCDCImpl( wxDC *owner ) :
+ wxDCImpl( owner )
+{
+ Init(wxGraphicsContext::Create());
+}
+
+void wxGCDCImpl::SetGraphicsContext( wxGraphicsContext* ctx )
+{
delete m_graphicContext;
m_graphicContext = ctx;
if ( m_graphicContext )
{
m_matrixOriginal = m_graphicContext->GetTransform();
m_ok = true;
+ // apply the stored transformations to the passed in context
+ ComputeScaleAndOrigin();
+ m_graphicContext->SetFont( m_font , m_textForegroundColour );
+ m_graphicContext->SetPen( m_pen );
+ m_graphicContext->SetBrush( m_brush);
}
}
-wxGCDC::wxGCDC(const wxWindowDC& dc)
+wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxWindowDC& dc ) :
+ wxDCImpl( owner )
{
- Init();
- SetGraphicsContext( wxGraphicsContext::Create(dc) );
- if ( dc.GetFont().Ok())
- m_graphicContext->SetFont( m_graphicContext->CreateFont(dc.GetFont(),dc.GetTextForeground()));
- if ( dc.GetPen().Ok())
- m_graphicContext->SetPen( m_graphicContext->CreatePen(dc.GetPen()));
- if ( dc.GetBrush().Ok())
- m_graphicContext->SetBrush( m_graphicContext->CreateBrush(dc.GetBrush()));
+ Init(wxGraphicsContext::Create(dc));
+ m_window = dc.GetWindow();
}
-void wxGCDC::Init()
+wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc ) :
+ wxDCImpl( owner )
+{
+ Init(wxGraphicsContext::Create(dc));
+}
+
+#if wxUSE_PRINTING_ARCHITECTURE
+wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc ) :
+ wxDCImpl( owner )
+{
+ Init(wxGraphicsContext::Create(dc));
+}
+#endif
+
+#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
+wxGCDCImpl::wxGCDCImpl(wxDC *owner, const wxEnhMetaFileDC& dc)
+ : wxDCImpl(owner)
+{
+ Init(wxGraphicsContext::Create(dc));
+}
+#endif
+
+wxGCDCImpl::wxGCDCImpl(wxDC* owner, int)
+ : wxDCImpl(owner)
+{
+ // derived class will set a context
+ Init(NULL);
+}
+
+void wxGCDCImpl::Init(wxGraphicsContext* ctx)
{
m_ok = false;
m_colour = true;
m_brush = *wxWHITE_BRUSH;
m_graphicContext = NULL;
-}
+ if (ctx)
+ SetGraphicsContext(ctx);
+ m_logicalFunctionSupported = true;
+}
-wxGCDC::~wxGCDC()
+wxGCDCImpl::~wxGCDCImpl()
{
delete m_graphicContext;
}
-void wxGCDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
+void wxGCDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y,
+ bool useMask )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid DC") );
- wxCHECK_RET( bmp.Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid bitmap") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid DC") );
+ wxCHECK_RET( bmp.IsOk(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid bitmap") );
- m_graphicContext->DrawBitmap( bmp, x , y , bmp.GetWidth() , bmp.GetHeight() );
+ int w = bmp.GetWidth();
+ int h = bmp.GetHeight();
+ if ( bmp.GetDepth() == 1 )
+ {
+ m_graphicContext->SetPen(*wxTRANSPARENT_PEN);
+ m_graphicContext->SetBrush( wxBrush( m_textBackgroundColour , wxSOLID ) );
+ m_graphicContext->DrawRectangle( x, y, w, h );
+ m_graphicContext->SetBrush( wxBrush( m_textForegroundColour , wxSOLID ) );
+ m_graphicContext->DrawBitmap( bmp, x, y, w, h );
+ m_graphicContext->SetBrush( m_graphicContext->CreateBrush(m_brush));
+ m_graphicContext->SetPen( m_graphicContext->CreatePen(m_pen));
+ }
+ else // not a monochrome bitmap, handle it normally
+ {
+ // make a copy in case we need to remove its mask, if we don't modify
+ // it the copy is cheap as bitmaps are reference-counted
+ wxBitmap bmpCopy(bmp);
+ if ( !useMask && bmp.GetMask() )
+ bmpCopy.SetMask(NULL);
+
+ m_graphicContext->DrawBitmap( bmpCopy, x, y, w, h );
+ }
}
-void wxGCDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
+void wxGCDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawIcon - invalid DC") );
- wxCHECK_RET( icon.Ok(), wxT("wxGCDC(cg)::DoDrawIcon - invalid icon") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawIcon - invalid DC") );
+ wxCHECK_RET( icon.IsOk(), wxT("wxGCDC(cg)::DoDrawIcon - invalid icon") );
wxCoord w = icon.GetWidth();
wxCoord h = icon.GetHeight();
m_graphicContext->DrawIcon( icon , x, y, w, h );
}
-void wxGCDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
+bool wxGCDCImpl::StartDoc( const wxString& WXUNUSED(message) )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegion - invalid DC") );
+ return true;
+}
+
+void wxGCDCImpl::EndDoc()
+{
+}
+
+void wxGCDCImpl::StartPage()
+{
+}
+
+void wxGCDCImpl::EndPage()
+{
+}
+
+void wxGCDCImpl::Flush()
+{
+ m_graphicContext->Flush();
+}
+
+void wxGCDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
+{
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoSetClippingRegion - invalid DC") );
m_graphicContext->Clip( x, y, w, h );
- if ( m_clipping )
- {
- m_clipX1 = wxMax( m_clipX1, x );
- m_clipY1 = wxMax( m_clipY1, y );
- m_clipX2 = wxMin( m_clipX2, (x + w) );
- m_clipY2 = wxMin( m_clipY2, (y + h) );
- }
- else
- {
- m_clipping = true;
- m_clipX1 = x;
- m_clipY1 = y;
- m_clipX2 = x + w;
- m_clipY2 = y + h;
- }
+ wxDCImpl::DoSetClippingRegion(x, y, w, h);
}
-void wxGCDC::DoSetClippingRegionAsRegion( const wxRegion ®ion )
+void wxGCDCImpl::DoSetDeviceClippingRegion( const wxRegion ®ion )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
+ // region is in device coordinates
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoSetDeviceClippingRegion - invalid DC") );
if (region.Empty())
{
- DestroyClippingRegion();
+ //DestroyClippingRegion();
return;
}
+ wxRegion logRegion( region );
wxCoord x, y, w, h;
- region.GetBox( x, y, w, h );
- m_graphicContext->Clip( region );
+ logRegion.Offset( DeviceToLogicalX(0), DeviceToLogicalY(0) );
+ logRegion.GetBox( x, y, w, h );
+
+ m_graphicContext->Clip( logRegion );
if ( m_clipping )
{
m_clipX1 = wxMax( m_clipX1, x );
}
}
-void wxGCDC::DestroyClippingRegion()
+void wxGCDCImpl::DestroyClippingRegion()
{
m_graphicContext->ResetClip();
+ // currently the clip eg of a window extends to the area between the scrollbars
+ // so we must explicitly make sure it only covers the area we want it to draw
+ int width, height ;
+ GetOwner()->GetSize( &width , &height ) ;
+ m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , DeviceToLogicalXRel(width), DeviceToLogicalYRel(height) );
+
m_graphicContext->SetPen( m_pen );
m_graphicContext->SetBrush( m_brush );
m_clipping = false;
}
-void wxGCDC::DoGetSizeMM( int* width, int* height ) const
+void wxGCDCImpl::DoGetSizeMM( int* width, int* height ) const
{
int w = 0, h = 0;
- GetSize( &w, &h );
+ GetOwner()->GetSize( &w, &h );
if (width)
*width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
if (height)
*height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
}
-void wxGCDC::SetTextForeground( const wxColour &col )
+void wxGCDCImpl::SetTextForeground( const wxColour &col )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::SetTextForeground - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::SetTextForeground - invalid DC") );
- if ( col != m_textForegroundColour )
+ // don't set m_textForegroundColour to an invalid colour as we'd crash
+ // later then (we use m_textForegroundColour.GetColor() without checking
+ // in a few places)
+ if ( col.IsOk() )
{
m_textForegroundColour = col;
m_graphicContext->SetFont( m_font, m_textForegroundColour );
}
}
-void wxGCDC::SetTextBackground( const wxColour &col )
+void wxGCDCImpl::SetTextBackground( const wxColour &col )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::SetTextBackground - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::SetTextBackground - invalid DC") );
m_textBackgroundColour = col;
}
-void wxGCDC::SetMapMode( int mode )
+wxSize wxGCDCImpl::GetPPI() const
{
- switch (mode)
- {
- case wxMM_TWIPS:
- SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
- break;
-
- case wxMM_POINTS:
- SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
- break;
-
- case wxMM_METRIC:
- SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
- break;
-
- case wxMM_LOMETRIC:
- SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
- break;
-
- case wxMM_TEXT:
- default:
- SetLogicalScale( 1.0, 1.0 );
- break;
- }
-
- ComputeScaleAndOrigin();
-}
-
-void wxGCDC::SetUserScale( double x, double y )
-{
- // allow negative ? -> no
-
- m_userScaleX = x;
- m_userScaleY = y;
- ComputeScaleAndOrigin();
+ return wxSize(72, 72);
}
-void wxGCDC::SetLogicalScale( double x, double y )
+int wxGCDCImpl::GetDepth() const
{
- // allow negative ?
- m_logicalScaleX = x;
- m_logicalScaleY = y;
- ComputeScaleAndOrigin();
+ return 32;
}
-void wxGCDC::SetLogicalOrigin( wxCoord x, wxCoord y )
+void wxGCDCImpl::ComputeScaleAndOrigin()
{
- m_logicalOriginX = x * m_signX; // is this still correct ?
- m_logicalOriginY = y * m_signY;
- ComputeScaleAndOrigin();
-}
+ wxDCImpl::ComputeScaleAndOrigin();
-void wxGCDC::SetDeviceOrigin( wxCoord x, wxCoord y )
-{
- m_deviceOriginX = x;
- m_deviceOriginY = y;
- ComputeScaleAndOrigin();
-}
+ if ( m_graphicContext )
+ {
+ m_matrixCurrent = m_graphicContext->CreateMatrix();
-void wxGCDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
-{
- m_signX = (xLeftRight ? 1 : -1);
- m_signY = (yBottomUp ? -1 : 1);
- ComputeScaleAndOrigin();
-}
+ // the logical origin sets the origin to have new coordinates
+ m_matrixCurrent.Translate( m_deviceOriginX - m_logicalOriginX * m_signX * m_scaleX,
+ m_deviceOriginY-m_logicalOriginY * m_signY * m_scaleY);
-wxSize wxGCDC::GetPPI() const
-{
- return wxSize(72, 72);
-}
+ m_matrixCurrent.Scale( m_scaleX * m_signX, m_scaleY * m_signY );
-int wxGCDC::GetDepth() const
-{
- return 32;
+ m_graphicContext->SetTransform( m_matrixOriginal );
+ m_graphicContext->ConcatTransform( m_matrixCurrent );
+ }
}
-void wxGCDC::ComputeScaleAndOrigin()
+void* wxGCDCImpl::GetHandle() const
{
- m_scaleX = m_logicalScaleX * m_userScaleX;
- m_scaleY = m_logicalScaleY * m_userScaleY;
-
- m_matrixCurrent = m_graphicContext->CreateMatrix();
- m_matrixCurrent.Translate( m_deviceOriginX, m_deviceOriginY );
- m_matrixCurrent.Scale( m_scaleX, m_scaleY );
- m_matrixCurrent.Translate( m_logicalOriginX, m_logicalOriginY );
-
- m_graphicContext->SetTransform( m_matrixOriginal );
- m_graphicContext->ConcatTransform( m_matrixCurrent );
+ void* cgctx = NULL;
+ wxGraphicsContext* gc = GetGraphicsContext();
+ if (gc) {
+ cgctx = gc->GetNativeContext();
+ }
+ return cgctx;
}
-void wxGCDC::SetPalette( const wxPalette& WXUNUSED(palette) )
+void wxGCDCImpl::SetPalette( const wxPalette& WXUNUSED(palette) )
{
}
-void wxGCDC::SetBackgroundMode( int mode )
+void wxGCDCImpl::SetBackgroundMode( int mode )
{
m_backgroundMode = mode;
}
-void wxGCDC::SetFont( const wxFont &font )
+void wxGCDCImpl::SetFont( const wxFont &font )
{
m_font = font;
if ( m_graphicContext )
{
- wxFont f = font;
- if ( f.Ok() )
- f.SetPointSize( /*LogicalToDeviceYRel*/(font.GetPointSize()));
- m_graphicContext->SetFont( f, m_textForegroundColour );
+ m_graphicContext->SetFont(font, m_textForegroundColour);
}
}
-void wxGCDC::SetPen( const wxPen &pen )
+void wxGCDCImpl::SetPen( const wxPen &pen )
{
- if ( m_pen == pen )
- return;
-
m_pen = pen;
if ( m_graphicContext )
{
}
}
-void wxGCDC::SetBrush( const wxBrush &brush )
+void wxGCDCImpl::SetBrush( const wxBrush &brush )
{
- if (m_brush == brush)
- return;
-
m_brush = brush;
if ( m_graphicContext )
{
}
}
-void wxGCDC::SetBackground( const wxBrush &brush )
+void wxGCDCImpl::SetBackground( const wxBrush &brush )
{
- if (m_backgroundBrush == brush)
- return;
-
m_backgroundBrush = brush;
- if (!m_backgroundBrush.Ok())
+ if (!m_backgroundBrush.IsOk())
return;
}
-void wxGCDC::SetLogicalFunction( int function )
+void wxGCDCImpl::SetLogicalFunction( wxRasterOperationMode function )
{
- if (m_logicalFunction == function)
- return;
-
m_logicalFunction = function;
-#if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
- CGContextRef cgContext = ((wxCairoContext*)(m_graphicContext))->GetNativeContext();
- if ( m_logicalFunction == wxCOPY )
- CGContextSetBlendMode( cgContext, kCGBlendModeNormal );
- else if ( m_logicalFunction == wxINVERT )
- CGContextSetBlendMode( cgContext, kCGBlendModeExclusion );
- else
- CGContextSetBlendMode( cgContext, kCGBlendModeNormal );
-#endif
+ wxCompositionMode mode = TranslateRasterOp( function );
+ m_logicalFunctionSupported = mode != wxCOMPOSITION_INVALID;
+ if (m_logicalFunctionSupported)
+ m_logicalFunctionSupported = m_graphicContext->SetCompositionMode(mode);
+ if ( function == wxXOR )
+ m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
+ else
+ m_graphicContext->SetAntialiasMode(wxANTIALIAS_DEFAULT);
}
-bool wxGCDC::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
- const wxColour& WXUNUSED(col), int WXUNUSED(style))
+bool wxGCDCImpl::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
+ const wxColour& WXUNUSED(col),
+ wxFloodFillStyle WXUNUSED(style))
{
return false;
}
-bool wxGCDC::DoGetPixel( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour *WXUNUSED(col) ) const
+bool wxGCDCImpl::DoGetPixel( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour *WXUNUSED(col) ) const
{
// wxCHECK_MSG( 0 , false, wxT("wxGCDC(cg)::DoGetPixel - not implemented") );
return false;
}
-void wxGCDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
+void wxGCDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLine - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawLine - invalid DC") );
-#if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
-
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
-#endif
m_graphicContext->StrokeLine(x1,y1,x2,y2);
CalcBoundingBox(x2, y2);
}
-void wxGCDC::DoCrossHair( wxCoord x, wxCoord y )
+void wxGCDCImpl::DoCrossHair( wxCoord x, wxCoord y )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoCrossHair - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoCrossHair - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
int w = 0, h = 0;
- GetSize( &w, &h );
+ GetOwner()->GetSize( &w, &h );
m_graphicContext->StrokeLine(0,y,w,y);
m_graphicContext->StrokeLine(x,0,x,h);
CalcBoundingBox(0+w, 0+h);
}
-void wxGCDC::DoDrawArc( wxCoord x1, wxCoord y1,
+void wxGCDCImpl::DoDrawArc( wxCoord x1, wxCoord y1,
wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawArc - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawArc - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
double dx = x1 - xc;
wxGraphicsPath path = m_graphicContext->CreatePath();
if ( fill && ((x1!=x2)||(y1!=y2)) )
path.MoveToPoint( xc, yc );
- path.AddArc( xc, yc , rad , DegToRad(sa) , DegToRad(ea), false );
+ // since these angles (ea,sa) are measured counter-clockwise, we invert them to
+ // get clockwise angles
+ path.AddArc( xc, yc , rad , DegToRad(-sa) , DegToRad(-ea), false );
if ( fill && ((x1!=x2)||(y1!=y2)) )
path.AddLineToPoint( xc, yc );
m_graphicContext->DrawPath(path);
}
-void wxGCDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
+void wxGCDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
double sa, double ea )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipticArc - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawEllipticArc - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
- bool fill = m_brush.GetStyle() != wxTRANSPARENT;
-
- wxGraphicsPath path = m_graphicContext->CreatePath();
m_graphicContext->PushState();
- m_graphicContext->Translate(x+w/2,y+h/2);
+ m_graphicContext->Translate(x+w/2.0,y+h/2.0);
wxDouble factor = ((wxDouble) w) / h;
m_graphicContext->Scale( factor , 1.0);
- if ( fill && (sa!=ea) )
- path.MoveToPoint(0,0);
+
// since these angles (ea,sa) are measured counter-clockwise, we invert them to
// get clockwise angles
- path.AddArc( 0, 0, h/2 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
- if ( fill && (sa!=ea) )
- path.AddLineToPoint(0,0);
- m_graphicContext->DrawPath( path );
+ if ( m_brush.GetStyle() != wxTRANSPARENT )
+ {
+ wxGraphicsPath path = m_graphicContext->CreatePath();
+ path.MoveToPoint( 0, 0 );
+ path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
+ path.AddLineToPoint( 0, 0 );
+ m_graphicContext->FillPath( path );
+
+ path = m_graphicContext->CreatePath();
+ path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
+ m_graphicContext->StrokePath( path );
+ }
+ else
+ {
+ wxGraphicsPath path = m_graphicContext->CreatePath();
+ path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
+ m_graphicContext->DrawPath( path );
+ }
+
m_graphicContext->PopState();
}
-void wxGCDC::DoDrawPoint( wxCoord x, wxCoord y )
+void wxGCDCImpl::DoDrawPoint( wxCoord x, wxCoord y )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawPoint - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawPoint - invalid DC") );
DoDrawLine( x , y , x + 1 , y + 1 );
}
-void wxGCDC::DoDrawLines(int n, wxPoint points[],
+void wxGCDCImpl::DoDrawLines(int n, wxPoint points[],
wxCoord xoffset, wxCoord yoffset)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") );
-
-#if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
-#endif
wxPoint2DDouble* pointsD = new wxPoint2DDouble[n];
for( int i = 0; i < n; ++i)
}
#if wxUSE_SPLINES
-void wxGCDC::DoDrawSpline(wxList *points)
+void wxGCDCImpl::DoDrawSpline(const wxPointList *points)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawSpline - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawSpline - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
wxGraphicsPath path = m_graphicContext->CreatePath();
- wxList::compatibility_iterator node = points->GetFirst();
- if (node == wxList::compatibility_iterator())
+ wxPointList::compatibility_iterator node = points->GetFirst();
+ if ( !node )
// empty list
return;
- wxPoint *p = (wxPoint *)node->GetData();
+ wxPoint *p = node->GetData();
wxCoord x1 = p->x;
wxCoord y1 = p->y;
node = node->GetNext();
- p = (wxPoint *)node->GetData();
+ p = node->GetData();
wxCoord x2 = p->x;
wxCoord y2 = p->y;
path.MoveToPoint( x1 , y1 );
path.AddLineToPoint( cx1 , cy1 );
-#if !wxUSE_STL
+#if !wxUSE_STD_CONTAINERS
while ((node = node->GetNext()) != NULL)
#else
while ((node = node->GetNext()))
-#endif // !wxUSE_STL
+#endif // !wxUSE_STD_CONTAINERS
{
- p = (wxPoint *)node->GetData();
+ p = node->GetData();
x1 = x2;
y1 = y2;
x2 = p->x;
}
#endif // wxUSE_SPLINES
-void wxGCDC::DoDrawPolygon( int n, wxPoint points[],
- wxCoord xoffset, wxCoord yoffset,
- int fillStyle )
+void wxGCDCImpl::DoDrawPolygon( int n, wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ wxPolygonFillMode fillStyle )
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawPolygon - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawPolygon - invalid DC") );
if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
return;
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
bool closeIt = false;
delete[] pointsD;
}
-void wxGCDC::DoDrawPolyPolygon(int n,
+void wxGCDCImpl::DoDrawPolyPolygon(int n,
int count[],
wxPoint points[],
wxCoord xoffset,
wxCoord yoffset,
- int fillStyle)
+ wxPolygonFillMode fillStyle)
{
wxASSERT(n > 1);
wxGraphicsPath path = m_graphicContext->CreatePath();
m_graphicContext->DrawPath( path , fillStyle);
}
-void wxGCDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
+void wxGCDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRectangle - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRectangle - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
// CMB: draw nothing if transformed w or h is 0
m_graphicContext->DrawRectangle(x,y,w,h);
}
-void wxGCDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
+void wxGCDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
wxCoord w, wxCoord h,
double radius)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRoundedRectangle - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRoundedRectangle - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
if (radius < 0.0)
if (w == 0 || h == 0)
return;
+ if ( m_graphicContext->ShouldOffset() )
+ {
+ // if we are offsetting the entire rectangle is moved 0.5, so the
+ // border line gets off by 1
+ w -= 1;
+ h -= 1;
+ }
m_graphicContext->DrawRoundedRectangle( x,y,w,h,radius);
}
-void wxGCDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
+void wxGCDCImpl::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipse - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawEllipse - invalid DC") );
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
+ if ( m_graphicContext->ShouldOffset() )
+ {
+ // if we are offsetting the entire rectangle is moved 0.5, so the
+ // border line gets off by 1
+ w -= 1;
+ h -= 1;
+ }
m_graphicContext->DrawEllipse(x,y,w,h);
}
-bool wxGCDC::CanDrawBitmap() const
+bool wxGCDCImpl::CanDrawBitmap() const
{
return true;
}
-bool wxGCDC::DoBlit(
+bool wxGCDCImpl::DoBlit(
wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
- wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool WXUNUSED(useMask),
+ wxDC *source, wxCoord xsrc, wxCoord ysrc,
+ wxRasterOperationMode logical_func , bool useMask,
wxCoord xsrcMask, wxCoord ysrcMask )
{
- wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::DoBlit - invalid DC") );
- wxCHECK_MSG( source->Ok(), false, wxT("wxGCDC(cg)::DoBlit - invalid source DC") );
-
+ return DoStretchBlit( xdest, ydest, width, height,
+ source, xsrc, ysrc, width, height, logical_func, useMask,
+ xsrcMask,ysrcMask );
+}
+
+bool wxGCDCImpl::DoStretchBlit(
+ wxCoord xdest, wxCoord ydest, wxCoord dstWidth, wxCoord dstHeight,
+ wxDC *source, wxCoord xsrc, wxCoord ysrc, wxCoord srcWidth, wxCoord srcHeight,
+ wxRasterOperationMode logical_func , bool useMask,
+ wxCoord xsrcMask, wxCoord ysrcMask )
+{
+ wxCHECK_MSG( IsOk(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid DC") );
+ wxCHECK_MSG( source->IsOk(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid source DC") );
+
if ( logical_func == wxNO_OP )
return true;
- else if ( logical_func != wxCOPY )
+
+ wxCompositionMode mode = TranslateRasterOp(logical_func);
+ if ( mode == wxCOMPOSITION_INVALID )
{
- wxFAIL_MSG( wxT("Blitting is only supported with wxCOPY logical operation.") );
+ wxFAIL_MSG( wxT("Blitting is not supported with this logical operation.") );
return false;
}
- if (xsrcMask == -1 && ysrcMask == -1)
- {
- xsrcMask = xsrc;
- ysrcMask = ysrc;
- }
+ wxRect subrect(source->LogicalToDeviceX(xsrc),
+ source->LogicalToDeviceY(ysrc),
+ source->LogicalToDeviceXRel(srcWidth),
+ source->LogicalToDeviceYRel(srcHeight));
+ const wxRect subrectOrig = subrect;
+ // clip the subrect down to the size of the source DC
+ wxRect clip;
+ source->GetSize(&clip.width, &clip.height);
+ subrect.Intersect(clip);
+ if (subrect.width == 0)
+ return true;
- wxRect subrect(source-> LogicalToDeviceX(xsrc),source-> LogicalToDeviceY(ysrc),
- source-> LogicalToDeviceXRel(width),source-> LogicalToDeviceYRel(height));
-
- wxBitmap blit = source->GetAsBitmap( &subrect );
-
- if ( blit.Ok() )
- {
- m_graphicContext->DrawBitmap( blit, xdest , ydest , width , height );
- }
- else
+ bool retval = true;
+
+ wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
+ if (m_graphicContext->SetCompositionMode(mode))
{
- wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") );
- return false;
+ wxAntialiasMode formerAa = m_graphicContext->GetAntialiasMode();
+ if (mode == wxCOMPOSITION_XOR)
+ {
+ m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
+ }
+
+ if (xsrcMask == -1 && ysrcMask == -1)
+ {
+ xsrcMask = xsrc;
+ ysrcMask = ysrc;
+ }
+
+ wxBitmap blit = source->GetAsBitmap( &subrect );
+
+ if ( blit.IsOk() )
+ {
+ if ( !useMask && blit.GetMask() )
+ blit.SetMask(NULL);
+
+ double x = xdest;
+ double y = ydest;
+ double w = dstWidth;
+ double h = dstHeight;
+ // adjust dest rect if source rect is clipped
+ if (subrect.width != subrectOrig.width || subrect.height != subrectOrig.height)
+ {
+ x += (subrect.x - subrectOrig.x) / double(subrectOrig.width) * dstWidth;
+ y += (subrect.y - subrectOrig.y) / double(subrectOrig.height) * dstHeight;
+ w *= double(subrect.width) / subrectOrig.width;
+ h *= double(subrect.height) / subrectOrig.height;
+ }
+ m_graphicContext->DrawBitmap(blit, x, y, w, h);
+ }
+ else
+ {
+ wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") );
+ retval = false;
+ }
+
+ if (mode == wxCOMPOSITION_XOR)
+ {
+ m_graphicContext->SetAntialiasMode(formerAa);
+ }
}
+ // reset composition
+ m_graphicContext->SetCompositionMode(formerMode);
- return true;
+ return retval;
}
-void wxGCDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
+void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
double angle)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") );
- if ( str.length() == 0 )
+ if ( str.empty() )
return;
- if ( m_logicalFunction != wxCOPY )
+ if ( !m_logicalFunctionSupported )
return;
- m_graphicContext->DrawText( str, x ,y , DegToRad(angle ));
+ if ( m_backgroundMode == wxTRANSPARENT )
+ m_graphicContext->DrawText( str, x ,y , DegToRad(angle ));
+ else
+ m_graphicContext->DrawText( str, x ,y , DegToRad(angle ), m_graphicContext->CreateBrush( wxBrush(m_textBackgroundColour,wxSOLID) ) );
}
-void wxGCDC::DoDrawText(const wxString& str, wxCoord x, wxCoord y)
+void wxGCDCImpl::DoDrawText(const wxString& str, wxCoord x, wxCoord y)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") );
+ // For compatibility with other ports (notably wxGTK) and because it's
+ // genuinely useful, we allow passing multiline strings to DrawText().
+ // However there is no native OSX function to draw them directly so we
+ // instead reuse the generic DrawLabel() method to render them. Of course,
+ // DrawLabel() itself will call back to us but with single line strings
+ // only so there won't be any infinite recursion here.
+ if ( str.find('\n') != wxString::npos )
+ {
+ GetOwner()->DrawLabel(str, wxRect(x, y, 0, 0));
+ return;
+ }
+
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawText - invalid DC") );
- if ( str.length() == 0 )
+ if ( str.empty() )
return;
- if ( m_logicalFunction != wxCOPY )
+
+ if ( !m_logicalFunctionSupported )
return;
- m_graphicContext->DrawText( str, x ,y);
+ if ( m_backgroundMode == wxTRANSPARENT )
+ m_graphicContext->DrawText( str, x ,y);
+ else
+ m_graphicContext->DrawText( str, x ,y , m_graphicContext->CreateBrush( wxBrush(m_textBackgroundColour,wxSOLID) ) );
}
-bool wxGCDC::CanGetTextExtent() const
+bool wxGCDCImpl::CanGetTextExtent() const
{
- wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::CanGetTextExtent - invalid DC") );
+ wxCHECK_MSG( IsOk(), false, wxT("wxGCDC(cg)::CanGetTextExtent - invalid DC") );
return true;
}
-void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
+void wxGCDCImpl::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
wxCoord *descent, wxCoord *externalLeading ,
- wxFont *theFont ) const
+ const wxFont *theFont ) const
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") );
+ wxCHECK_RET( m_graphicContext, wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") );
if ( theFont )
{
m_graphicContext->GetTextExtent( str, &w, &h, &d, &e );
if ( height )
- *height = h;
+ *height = (wxCoord)(h+0.5);
if ( descent )
- *descent = d;
+ *descent = (wxCoord)(d+0.5);
if ( externalLeading )
- *externalLeading =e;
+ *externalLeading = (wxCoord)(e+0.5);
if ( width )
- *width = w;
+ *width = (wxCoord)(w+0.5);
if ( theFont )
{
}
}
-bool wxGCDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
+bool wxGCDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
{
- wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::DoGetPartialTextExtents - invalid DC") );
+ wxCHECK_MSG( m_graphicContext, false, wxT("wxGCDC(cg)::DoGetPartialTextExtents - invalid DC") );
widths.Clear();
widths.Add(0,text.Length());
if ( text.IsEmpty() )
return true;
}
-wxCoord wxGCDC::GetCharWidth(void) const
+wxCoord wxGCDCImpl::GetCharWidth(void) const
{
wxCoord width;
DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL );
return width;
}
-wxCoord wxGCDC::GetCharHeight(void) const
+wxCoord wxGCDCImpl::GetCharHeight(void) const
{
wxCoord height;
DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL );
return height;
}
-void wxGCDC::Clear(void)
+void wxGCDCImpl::Clear(void)
{
- wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::Clear - invalid DC") );
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::Clear - invalid DC") );
// TODO better implementation / incorporate size info into wxGCDC or context
m_graphicContext->SetBrush( m_backgroundBrush );
wxPen p = *wxTRANSPARENT_PEN;
m_graphicContext->SetPen( p );
- DoDrawRectangle( 0, 0, 32000 , 32000 );
- m_graphicContext->SetPen( m_pen );
+ wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
+ m_graphicContext->SetCompositionMode(wxCOMPOSITION_SOURCE);
+ // maximum positive coordinate Cairo can handle is 2^23 - 1
+ DoDrawRectangle(
+ DeviceToLogicalX(0), DeviceToLogicalY(0),
+ DeviceToLogicalXRel(0x007fffff), DeviceToLogicalYRel(0x007fffff));
+ m_graphicContext->SetCompositionMode(formerMode);
+ m_graphicContext->SetPen( m_pen );
m_graphicContext->SetBrush( m_brush );
}
-void wxGCDC::DoGetSize(int *width, int *height) const
+void wxGCDCImpl::DoGetSize(int *width, int *height) const
{
- *width = 1000;
- *height = 1000;
+ wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoGetSize - invalid DC") );
+ wxDouble w,h;
+ m_graphicContext->GetSize( &w, &h );
+ if ( height )
+ *height = (int) (h+0.5);
+ if ( width )
+ *width = (int) (w+0.5);
}
-void wxGCDC::DoGradientFillLinear(const wxRect& rect,
+void wxGCDCImpl::DoGradientFillLinear(const wxRect& rect,
const wxColour& initialColour,
const wxColour& destColour,
wxDirection nDirection )
m_graphicContext->SetPen(*wxTRANSPARENT_PEN);
m_graphicContext->DrawRectangle(rect.x,rect.y,rect.width,rect.height);
m_graphicContext->SetPen(m_pen);
+ m_graphicContext->SetBrush(m_brush);
}
-void wxGCDC::DoGradientFillConcentric(const wxRect& rect,
+void wxGCDCImpl::DoGradientFillConcentric(const wxRect& rect,
const wxColour& initialColour,
const wxColour& destColour,
const wxPoint& circleCenter)
m_graphicContext->DrawRectangle(rect.x,rect.y,rect.width,rect.height);
m_graphicContext->SetPen(m_pen);
+ m_graphicContext->SetBrush(m_brush);
}
-void wxGCDC::DoDrawCheckMark(wxCoord x, wxCoord y,
+void wxGCDCImpl::DoDrawCheckMark(wxCoord x, wxCoord y,
wxCoord width, wxCoord height)
{
- wxDCBase::DoDrawCheckMark(x,y,width,height);
+ wxDCImpl::DoDrawCheckMark(x,y,width,height);
+}
+
+#ifdef __WXMSW__
+wxRect wxGCDCImpl::MSWApplyGDIPlusTransform(const wxRect& r) const
+{
+ wxGraphicsContext* const gc = GetGraphicsContext();
+ wxCHECK_MSG( gc, r, wxT("Invalid wxGCDC") );
+
+ double x = 0,
+ y = 0;
+ gc->GetTransform().TransformPoint(&x, &y);
+
+ wxRect rect(r);
+ rect.Offset(x, y);
+
+ return rect;
}
+#endif // __WXMSW__
#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff