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starting blend modes for Core Graphics

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36675 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor 2006-01-04 11:43:45 +00:00
parent 489d2dd393
commit 01b5ab3367
1 changed files with 17 additions and 0 deletions
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17
src/mac/carbon/dccg.cpp
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@ -37,6 +37,10 @@
IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
#ifndef wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
#define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
#endif
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
@ -1194,6 +1198,15 @@ void wxDC::SetLogicalFunction( int function )
return;
m_logicalFunction = function ;
#if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
if ( m_logicalFunction == wxCOPY )
CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
else if ( m_logicalFunction == wxINVERT )
CGContextSetBlendMode( cgContext, kCGBlendModeExclusion ) ;
else
CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
#endif
}
extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
@ -1227,8 +1240,10 @@ void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
{
wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
#if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
if ( m_logicalFunction != wxCOPY )
return ;
#endif
wxCoord xx1 = XLOG2DEVMAC(x1) ;
wxCoord yy1 = YLOG2DEVMAC(y1) ;
@ -1382,8 +1397,10 @@ void wxDC::DoDrawLines(int n, wxPoint points[],
{
wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
#if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
if ( m_logicalFunction != wxCOPY )
return ;
#endif
wxCoord x1, x2 , y1 , y2 ;
x1 = XLOG2DEVMAC(points[0].x + xoffset);