//-----------------------------------------------------------------------------
void GdiplusDrawContext::fillRadialGradient (CGraphicsPath* _path, const CGradient& gradient, const CPoint& center, CCoord radius, const CPoint& originOffset, bool evenOdd, CGraphicsTransform* t)
{
#if DEBUG
DebugPrint ("WARNING: GdiplusDrawContext::fillRadialGradient is not working as expected ! FIXME\n");
#endif
GdiplusGraphicsPath* gdiPlusPath = dynamic_cast<GdiplusGraphicsPath*> (_path);
if (gdiPlusPath && pGraphics)
{
GdiplusDrawScope drawScope (pGraphics, currentState.clipRect, getCurrentTransform ());
Gdiplus::GraphicsPath* path = gdiPlusPath->getGraphicsPath ();
if (t)
{
Gdiplus::Matrix matrix;
convert (matrix, *t);
path = path->Clone ();
path->Transform (&matrix);
}
path->SetFillMode (evenOdd ? Gdiplus::FillModeAlternate : Gdiplus::FillModeWinding);
Gdiplus::PointF c1p ((Gdiplus::REAL)(center.x + originOffset.x), (Gdiplus::REAL)(center.y + originOffset.y));
CRect boundingBox = gdiPlusPath->getBoundingBox ();
Gdiplus::GraphicsPath brushPath;
brushPath.AddEllipse ((Gdiplus::REAL)boundingBox.left, (Gdiplus::REAL)boundingBox.top, (Gdiplus::REAL)boundingBox.getWidth (), (Gdiplus::REAL)boundingBox.getHeight ());
Gdiplus::Matrix graphicsMatrix;
pGraphics->GetTransform (&graphicsMatrix);
brushPath.Transform (&graphicsMatrix);
Gdiplus::PathGradientBrush brush (&brushPath);
// set center
brush.SetCenterPoint (c1p);
// set the colors
Gdiplus::Color* colors = new Gdiplus::Color [gradient.getColorStops ().size ()];
Gdiplus::REAL* positions = new Gdiplus::REAL [gradient.getColorStops ().size ()];
uint32_t index = 0;
for (CGradient::ColorStopMap::const_iterator it = gradient.getColorStops ().begin (); it != gradient.getColorStops ().end (); ++it, ++index)
{
CColor color = it->second;
color.alpha = (int8_t)((float)color.alpha * currentState.globalAlpha);
colors[index] = createGdiPlusColor (color);
positions[index] = (Gdiplus::REAL)it->first;
}
brush.SetCenterColor (colors[0]);
INT count = static_cast<INT> (gradient.getColorStops ().size ()) - 1;
brush.SetSurroundColors (colors+1, &count);
pGraphics->FillPath (&brush, path);
if (path != gdiPlusPath->getGraphicsPath ())
delete path;
delete [] colors;
delete [] positions;
}
}
void PathGradientBrush::SetCenterPoint(const PointF& point) {
Gdiplus::PathGradientBrush* gdiBrush = dynamic_cast<Gdiplus::PathGradientBrush*>(reinterpret_cast<Gdiplus::Brush*>(_private));
Gdiplus::PointF gdiPoint = ToGDIPoint<PointF, Gdiplus::PointF>(point);
gdiBrush->SetCenterPoint(gdiPoint);
}