//-----------------------------------------------------------------------------
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 GdiplusDrawContext::fillLinearGradient (CGraphicsPath* _path, const CGradient& gradient, const CPoint& startPoint, const CPoint& endPoint, bool evenOdd, CGraphicsTransform* t)
{
#if DEBUG
DebugPrint ("WARNING: GdiplusDrawContext::fillLinearGradient is not working as expected ! FIXME");
#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);
}
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;
}
Gdiplus::PointF c1p ((Gdiplus::REAL)(startPoint.x), (Gdiplus::REAL)(startPoint.y));
Gdiplus::PointF c2p ((Gdiplus::REAL)(endPoint.x), (Gdiplus::REAL)(endPoint.y));
Gdiplus::LinearGradientBrush brush (c1p, c2p, colors[0], colors[gradient.getColorStops ().size () - 1]);
brush.SetInterpolationColors (colors, positions, static_cast<INT> (gradient.getColorStops ().size ()));
path->SetFillMode (evenOdd ? Gdiplus::FillModeAlternate : Gdiplus::FillModeWinding);
pGraphics->FillPath (&brush, path);
if (path != gdiPlusPath->getGraphicsPath ())
delete path;
delete [] colors;
delete [] positions;
}
}
TopAbs_State GEOMAlgo_FinderShapeOnQuad::GetPointState(const gp_Pnt& aP)
{
// Return IN if aP has TopAbs_IN with all sides.
// In the case of concave quadrangle, return IN if
// aP is OUT of only one concave side
double nbIn = 0.;
for ( int i = 0; i < myPlanes.size(); ++i )
{
TopAbs_State aSt;
GEOMAlgo_SurfaceTools::GetState(aP, myPlanes[i], myTolerance, aSt);
if ( aSt == TopAbs_IN )
{
nbIn += myConcaveSide[i] ? 0.5 : 1.0;
}
else if ( aSt == TopAbs_ON )
{
// check that aP is between quadrangle corners
Handle(Geom_Plane) aSidePlane = Handle(Geom_Plane)::DownCast( myPlanes[i].Surface() );
gp_Vec aSideNorm = aSidePlane->Axis().Direction();
gp_Vec aSideVec = myQuadNormal ^ aSideNorm;
gp_Vec c1p ( myPoints[i], aP );
gp_Vec pc2 ( aP, myPoints[i+1] );
if ( aSideVec * c1p >= 0. && aSideVec * pc2 >= 0. )
return TopAbs_ON;
// consider to be IN (???????????)
//nbIn += myConcaveSide[i] ? 0.5 : 1.0;
}
}
Standard_Real inThreshold = myPlanes.size(); // usually 4.0
if ( myConcaveQuad )
inThreshold = 2.5; // 1.0 + 1.0 + 0.5
if ( nbIn >= inThreshold )
return TopAbs_IN;
return TopAbs_OUT;
}
