38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
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// Copyright 2017 The oksvg Authors. All rights reserved.
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// created: 2/12/2017 by S.R.Wiley
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//
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// utils.go implements translation of an SVG2.0 path into a rasterx Path.
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package oksvg
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import (
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"github.com/srwiley/rasterx"
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)
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// SvgIcon holds data from parsed SVGs.
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type SvgIcon struct {
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ViewBox struct{ X, Y, W, H float64 }
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Titles []string // Title elements collect here
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Descriptions []string // Description elements collect here
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Grads map[string]*rasterx.Gradient
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Defs map[string][]definition
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SVGPaths []SvgPath
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Transform rasterx.Matrix2D
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classes map[string]styleAttribute
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}
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// Draw the compiled SVG icon into the GraphicContext.
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// All elements should be contained by the Bounds rectangle of the SvgIcon.
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func (s *SvgIcon) Draw(r *rasterx.Dasher, opacity float64) {
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for _, svgp := range s.SVGPaths {
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svgp.DrawTransformed(r, opacity, s.Transform)
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}
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}
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// SetTarget sets the Transform matrix to draw within the bounds of the rectangle arguments
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func (s *SvgIcon) SetTarget(x, y, w, h float64) {
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scaleW := w / s.ViewBox.W
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scaleH := h / s.ViewBox.H
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s.Transform = rasterx.Identity.Translate(x-s.ViewBox.X, y-s.ViewBox.Y).Scale(scaleW, scaleH)
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}
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