Golang Context.Scale Examples

Example #1

File: signalgraphview.go Project: axel-freesp/sge

func (v *signalGraphView) DrawCallback(area DrawArea, context *cairo.Context) {
	context.Scale(v.parent.Scale(), v.parent.Scale())
	x1, y1, x2, y2 := context.ClipExtents()
	r := image.Rect(int(x1), int(y1), int(x2), int(y2))
	v.drawNodes(context, r)
	v.drawConnections(context, r)
}

Example #2

File: platformview.go Project: axel-freesp/sge

func (v *platformView) DrawCallback(area DrawArea, context *cairo.Context) {
	context.Scale(v.parent.Scale(), v.parent.Scale())
	x1, y1, x2, y2 := context.ClipExtents()
	r := image.Rect(int(x1), int(y1), int(x2), int(y2))
	v.drawArch(context, r)
	v.drawChannels(context, r)
}

Example #3

File: mappingview.go Project: axel-freesp/sge

func (v *mappingView) DrawCallback(area DrawArea, context *cairo.Context) {
	context.Scale(v.parent.Scale(), v.parent.Scale())
	x1, y1, x2, y2 := context.ClipExtents()
	r := image.Rect(int(x1), int(y1), int(x2), int(y2))
	if r.Overlaps(v.unmapped.BBox()) {
		v.unmapped.Draw(context)
	}
	v.drawArch(context, r)
	v.drawNodes(context, r)
	v.drawChannels(context, r)
	v.drawConnections(context, r)
}