// Fill fills the paths with the color specified by SetFillColor
func (gc *GraphicContext) Fill(paths ...*draw2d.PathStorage) {
style := "F"
if !gc.Current.FillRule.UseNonZeroWinding() {
style += "*"
}
_, _, _, alphaF := gc.Current.FillColor.RGBA()
gc.draw(style, alphaF, paths...)
gc.Current.Path = draw2d.NewPathStorage()
}
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()
}
// FillStroke first fills the paths and than strokes them
func (gc *GraphicContext) FillStroke(paths ...*draw2d.PathStorage) {
var rule string
if !gc.Current.FillRule.UseNonZeroWinding() {
rule = "*"
}
_, _, _, alphaS := gc.Current.StrokeColor.RGBA()
_, _, _, alphaF := gc.Current.FillColor.RGBA()
if alphaS == alphaF {
gc.draw("FD"+rule, alphaF, paths...)
} else {
gc.draw("F"+rule, alphaF, paths...)
gc.draw("S", alphaS, paths...)
}
gc.Current.Path = draw2d.NewPathStorage()
}
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()
}
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()
}
// Stroke strokes the paths with the color specified by SetStrokeColor
func (gc *GraphicContext) Stroke(paths ...*draw2d.PathStorage) {
_, _, _, alphaS := gc.Current.StrokeColor.RGBA()
gc.draw("D", alphaS, paths...)
gc.Current.Path = draw2d.NewPathStorage()
}