public void Paint(Painter p, Bilinear tx)
{
//in this version, I can't apply bilinear tx to current tx matrix
using (VgPaintArgsPool.Borrow(p, out var paintArgs))
{
paintArgs.PaintVisitHandler = (vxs, painterA) =>
{
//use external painter handler
//draw only outline with its fill-color.
Drawing.Painter m_painter = painterA.P;
Drawing.Color prevFillColor = m_painter.FillColor;
m_painter.FillColor = m_painter.FillColor;
using (VxsTemp.Borrow(out var v1))
{
tx.TransformToVxs(vxs, v1);
m_painter.Fill(v1);
}
m_painter.FillColor = prevFillColor;
};
_vgVisElem.Paint(paintArgs);
}
}
public override void Draw(CanvasPainter p)
{
CanvasPainter painter = p;
if (!didInit)
{
didInit = true;
OnInitialize();
}
//-----------------------------------
painter.Clear(ColorRGBA.White);
//IImageReaderWriter backBuffer = ImageHelper.CreateChildImage(gx.DestImage, gx.GetClippingRect());
//ChildImage image;
//if (backBuffer.BitDepth == 32)
//{
// image = new ChildImage(backBuffer, new PixelBlenderBGRA());
//}
//else
//{
// if (backBuffer.BitDepth != 24)
// {
// throw new System.NotSupportedException();
// }
// image = new ChildImage(backBuffer, new PixelBlenderBGR());
//}
//ClipProxyImage dest = new ClipProxyImage(image);
//gx.Clear(ColorRGBA.White);
//gx.SetClippingRect(new RectInt(0, 0, Width, Height));
//ScanlineRasToDestBitmapRenderer sclineRasToBmp = gx.ScanlineRasToDestBitmap;
if (this.PerspectiveTransformType == Sample_Perspective.PerspectiveTransformType.Bilinear)
{
var bound = lionShape.Bounds;
Bilinear txBilinear = Bilinear.RectToQuad(bound.Left,
bound.Bottom,
bound.Right,
bound.Top,
quadPolygonControl.GetInnerCoords());
if (txBilinear.IsValid)
{
painter.PaintSeries(txBilinear.TransformToVxs(lionShape.Path.Vxs),
lionShape.Colors,
lionShape.PathIndexList,
lionShape.NumPaths);
RectD lionBound = lionShape.Bounds;
Ellipse ell = new Ellipse((lionBound.Left + lionBound.Right) * 0.5,
(lionBound.Bottom + lionBound.Top) * 0.5,
(lionBound.Right - lionBound.Left) * 0.5,
(lionBound.Top - lionBound.Bottom) * 0.5,
200);
VertexStore trans_ell = txBilinear.TransformToVxs(ell.MakeVxs());
painter.FillColor = ColorRGBA.Make(0.5f, 0.3f, 0.0f, 0.3f);
painter.Fill(trans_ell);
//-------------------------------------------------------------
//outline
double prevStrokeWidth = painter.StrokeWidth;
painter.StrokeWidth = 3;
painter.StrokeColor = ColorRGBA.Make(0.0f, 0.3f, 0.2f, 1.0f);
painter.Draw(trans_ell);
painter.StrokeWidth = prevStrokeWidth;
}
}
else
{
var txPerspective = new Perspective(
lionShape.Bounds,
quadPolygonControl.GetInnerCoords());
if (txPerspective.IsValid)
{
painter.PaintSeries(txPerspective.TransformToVxs(lionShape.Path.Vxs),
lionShape.Colors,
lionShape.PathIndexList,
lionShape.NumPaths);
//--------------------------------------------------------------------------------------
//filled Ellipse
//1. create original fill ellipse
RectD lionBound = lionShape.Bounds;
var filledEllipse = new Ellipse((lionBound.Left + lionBound.Right) * 0.5,
(lionBound.Bottom + lionBound.Top) * 0.5,
(lionBound.Right - lionBound.Left) * 0.5,
(lionBound.Top - lionBound.Bottom) * 0.5,
200);
VertexStore transformedEll = txPerspective.TransformToVxs(filledEllipse.MakeVxs());
painter.FillColor = ColorRGBA.Make(0.5f, 0.3f, 0.0f, 0.3f);
painter.Fill(transformedEll);
//--------------------------------------------------------
var prevStrokeW = painter.StrokeWidth;
painter.StrokeWidth = 3;
painter.StrokeColor = ColorRGBA.Make(0.0f, 0.3f, 0.2f, 1.0f);
painter.Draw(transformedEll);
painter.StrokeWidth = prevStrokeW;
}
}
//--------------------------
// Render the "quad" tool and controls
painter.FillColor = ColorRGBA.Make(0f, 0.3f, 0.5f, 0.6f);
painter.Fill(quadPolygonControl.MakeVxs());
}