60 lines
1.2 KiB
Go
60 lines
1.2 KiB
Go
// Copyright 2010 The draw2d Authors. All rights reserved.
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// created: 06/12/2010 by Laurent Le Goff
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package draw2d
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// Flattener receive segment definition
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type Flattener interface {
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// MoveTo Start a New line from the point (x, y)
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MoveTo(x, y float64)
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// LineTo Draw a line from the current position to the point (x, y)
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LineTo(x, y float64)
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// LineJoin add the most recent starting point to close the path to create a polygon
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LineJoin()
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// Close add the most recent starting point to close the path to create a polygon
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Close()
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// End mark the current line as finished so we can draw caps
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End()
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}
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type SegmentedPath struct {
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Points []float64
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}
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func (p *SegmentedPath) MoveTo(x, y float64) {
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p.Points = append(p.Points, x, y)
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// TODO need to mark this point as moveto
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}
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func (p *SegmentedPath) LineTo(x, y float64) {
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p.Points = append(p.Points, x, y)
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}
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func (p *SegmentedPath) LineJoin() {
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// TODO need to mark the current point as linejoin
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}
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func (p *SegmentedPath) Close() {
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// TODO Close
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}
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func (p *SegmentedPath) End() {
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// Nothing to do
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}
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type LineCap int
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const (
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RoundCap LineCap = iota
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ButtCap
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SquareCap
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)
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type LineJoin int
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const (
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BevelJoin LineJoin = iota
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RoundJoin
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MiterJoin
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)
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