57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
// Copyright 2015 The draw2d Authors. All rights reserved.
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// created: 26/06/2015 by Stani Michiels
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package pdf2d
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import "github.com/stanim/draw2d"
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// VertexMatrixTransform implements Vectorizer and applies the Matrix
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// transformation tr. It is normally wrapped around gofpdf Fpdf
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// or PathLogger.
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type VertexMatrixTransform struct {
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tr draw2d.MatrixTransform
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Next Vectorizer
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}
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// NewVertexMatrixTransform constructs an new VertexMatrixTransform
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func NewVertexMatrixTransform(tr draw2d.MatrixTransform,
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vectorizer Vectorizer) *VertexMatrixTransform {
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return &VertexMatrixTransform{tr, vectorizer}
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}
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// MoveTo creates a new subpath that start at the specified point
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func (vmt *VertexMatrixTransform) MoveTo(x, y float64) {
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vmt.tr.Transform(&x, &y)
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vmt.Next.MoveTo(x, y)
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}
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// LineTo adds a line to the current subpath
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func (vmt *VertexMatrixTransform) LineTo(x, y float64) {
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vmt.tr.Transform(&x, &y)
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vmt.Next.LineTo(x, y)
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}
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// CurveTo adds a quadratic bezier curve to the current subpath
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func (vmt *VertexMatrixTransform) CurveTo(cx, cy, x, y float64) {
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vmt.tr.Transform(&cx, &cy, &x, &y)
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vmt.Next.CurveTo(cx, cy, x, y)
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}
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// CurveBezierCubicTo adds a cubic bezier curve to the current subpath
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func (vmt *VertexMatrixTransform) CurveBezierCubicTo(cx1, cy1,
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cx2, cy2, x, y float64) {
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vmt.tr.Transform(&cx1, &cy1, &cx2, &cy2, &x, &y)
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vmt.Next.CurveBezierCubicTo(cx1, cy1, cx2, cy2, x, y)
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}
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// ArcTo adds an arc to the current subpath
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func (vmt *VertexMatrixTransform) ArcTo(x, y, rx, ry, degRotate, degStart, degEnd float64) {
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vmt.tr.Transform(&x, &y)
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vmt.Next.ArcTo(x, y, rx, ry, degRotate, degStart, degEnd)
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}
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// ClosePath closes the subpath
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func (vmt *VertexMatrixTransform) ClosePath() {
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vmt.Next.ClosePath()
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}
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