62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
// Copyright 2010 The draw2d Authors. All rights reserved.
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// created: 21/11/2010 by Laurent Le Goff
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package draw2d
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type LineMarker byte
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const (
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LineNoneMarker LineMarker = iota
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// Mark the current point of the line as a join to it can draw some specific join Bevel, Miter, Rount
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LineJoinMarker
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)
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type LineBuilder interface {
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NextCommand(cmd LineMarker)
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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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// 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 LineBuilders struct {
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builders []LineBuilder
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}
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func NewLineBuilders(builders ...LineBuilder) *LineBuilders {
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return &LineBuilders{builders}
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}
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func (dc *LineBuilders) NextCommand(cmd LineMarker) {
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for _, converter := range dc.builders {
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converter.NextCommand(cmd)
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}
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}
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func (dc *LineBuilders) MoveTo(x, y float64) {
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for _, converter := range dc.builders {
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converter.MoveTo(x, y)
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}
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}
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func (dc *LineBuilders) LineTo(x, y float64) {
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for _, converter := range dc.builders {
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converter.LineTo(x, y)
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}
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}
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func (dc *LineBuilders) Close() {
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for _, converter := range dc.builders {
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converter.Close()
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}
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}
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func (dc *LineBuilders) End() {
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for _, converter := range dc.builders {
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converter.End()
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}
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}
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