Beispiel #1
0
func (gc *GraphicContext) Stroke(paths ...*draw2d.PathStorage) {
	paths = append(paths, gc.Current.Path)
	gc.strokeRasterizer.UseNonZeroWinding = true

	stroker := draw2d.NewLineStroker(gc.Current.Cap, gc.Current.Join, draw2d.NewVertexMatrixTransform(gc.Current.Tr, draw2d.NewVertexAdder(gc.strokeRasterizer)))
	stroker.HalfLineWidth = gc.Current.LineWidth / 2
	var pathConverter *draw2d.PathConverter
	if gc.Current.Dash != nil && len(gc.Current.Dash) > 0 {
		dasher := draw2d.NewDashConverter(gc.Current.Dash, gc.Current.DashOffset, stroker)
		pathConverter = draw2d.NewPathConverter(dasher)
	} else {
		pathConverter = draw2d.NewPathConverter(stroker)
	}
	pathConverter.ApproximationScale = gc.Current.Tr.GetScale() // From agg code
	pathConverter.Convert(paths...)

	gc.paint(gc.strokeRasterizer, gc.Current.StrokeColor)
	gc.Current.Path = draw2d.NewPathStorage()
}
Beispiel #2
0
func (gc *GraphicContext) Fill(paths ...*draw2d.PathStorage) {
	paths = append(paths, gc.Current.Path)
	gc.fillRasterizer.UseNonZeroWinding = gc.Current.FillRule.UseNonZeroWinding()

	pathConverter := draw2d.NewPathConverter(draw2d.NewVertexMatrixTransform(gc.Current.Tr, draw2d.NewVertexAdder(gc.fillRasterizer)))
	pathConverter.ApproximationScale = gc.Current.Tr.GetScale() // From agg code
	pathConverter.Convert(paths...)

	gc.paint(gc.fillRasterizer, gc.Current.FillColor)
	gc.Current.Path = draw2d.NewPathStorage()
}
Beispiel #3
0
func (gc *GraphicContext) FillStroke(paths ...*draw2d.PathStorage) {
	gc.fillRasterizer.UseNonZeroWinding = gc.Current.FillRule.UseNonZeroWinding()
	gc.strokeRasterizer.UseNonZeroWinding = true

	filler := draw2d.NewVertexMatrixTransform(gc.Current.Tr, draw2d.NewVertexAdder(gc.fillRasterizer))

	stroker := draw2d.NewLineStroker(gc.Current.Cap, gc.Current.Join, draw2d.NewVertexMatrixTransform(gc.Current.Tr, draw2d.NewVertexAdder(gc.strokeRasterizer)))
	stroker.HalfLineWidth = gc.Current.LineWidth / 2

	demux := draw2d.NewDemuxConverter(filler, stroker)
	paths = append(paths, gc.Current.Path)
	pathConverter := draw2d.NewPathConverter(demux)
	pathConverter.ApproximationScale = gc.Current.Tr.GetScale() // From agg code
	pathConverter.Convert(paths...)

	gc.paint(gc.fillRasterizer, gc.Current.FillColor)
	gc.paint(gc.strokeRasterizer, gc.Current.StrokeColor)
	gc.Current.Path = draw2d.NewPathStorage()
}