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adding correct filling area to arc, correct rounding and clipping

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@49286 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2007-10-21 11:51:45 +00:00
parent 248e9b5834
commit 0417955ddb
1 changed files with 29 additions and 11 deletions
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40
src/common/dcgraph.cpp
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@@ -168,7 +168,7 @@ void wxGCDC::DoSetClippingRegionAsRegion( const wxRegion &region )
if (region.Empty())
{
DestroyClippingRegion();
//DestroyClippingRegion();
return;
}
@@ -204,7 +204,7 @@ void wxGCDC::DestroyClippingRegion()
// so we must explicitely make sure it only covers the area we want it to draw
int width, height ;
GetSize( &width , &height ) ;
m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , width, height );
m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , DeviceToLogicalXRel(width), DeviceToLogicalYRel(height) );
m_graphicContext->SetPen( m_pen );
m_graphicContext->SetBrush( m_brush );
@@ -501,7 +501,6 @@ void wxGCDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
if ( !m_logicalFunctionSupported )
return;
wxGraphicsPath path = m_graphicContext->CreatePath();
m_graphicContext->PushState();
m_graphicContext->Translate(x+w/2.0,y+h/2.0);
wxDouble factor = ((wxDouble) w) / h;
@@ -509,8 +508,27 @@ void wxGCDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
// since these angles (ea,sa) are measured counter-clockwise, we invert them to
// get clockwise angles
path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
m_graphicContext->DrawPath( path );
if ( m_brush.GetStyle() != wxTRANSPARENT )
{
wxGraphicsPath path = m_graphicContext->CreatePath();
path.MoveToPoint( 0, 0 );
path.AddLineToPoint( h / 2.0 * cos(DegToRad(sa)) , h / 2.0 * sin(DegToRad(-sa)) );
path.AddLineToPoint( h / 2.0 * cos(DegToRad(ea)) , h / 2.0 * sin(DegToRad(-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->FillPath( path );
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();
}
@@ -838,13 +856,13 @@ void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *heig
m_graphicContext->GetTextExtent( str, &w, &h, &d, &e );
if ( height )
*height = (wxCoord)h;
*height = (wxCoord)(h+0.5);
if ( descent )
*descent = (wxCoord)d;
*descent = (wxCoord)(d+0.5);
if ( externalLeading )
*externalLeading = (wxCoord)e;
*externalLeading = (wxCoord)(e+0.5);
if ( width )
*width = (wxCoord)w;
*width = (wxCoord)(w+0.5);
if ( theFont )
{
@@ -899,8 +917,8 @@ void wxGCDC::Clear(void)
void wxGCDC::DoGetSize(int *width, int *height) const
{
*width = 1000;
*height = 1000;
*width = 10000;
*height = 10000;
}
void wxGCDC::DoGradientFillLinear(const wxRect& rect,