The Birdfont Source Code


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SvgTransforms.vala in libbirdfont/Svg

This file is a part of the Birdfont project.

Contributing

Send patches or pull requests to johan.mattsson.m@gmail.com.
Clone this repository: git clone https://github.com/johanmattssonm/birdfont.git

Revisions

View the latest version of libbirdfont/Svg/SvgTransforms.vala.
Linear gradients and matrix tranform on gradients
1 /* 2 Copyright (C) 2016 Johan Mattsson 3 4 This library is free software; you can redistribute it and/or modify 5 it under the terms of the GNU Lesser General Public License as 6 published by the Free Software Foundation; either version 3 of the 7 License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 */ 14 15 using Cairo; 16 17 namespace BirdFont { 18 19 public class SvgTransforms : GLib.Object { 20 public Gee.ArrayList<SvgTransform> transforms; 21 22 public SvgTransforms () { 23 transforms = new Gee.ArrayList<SvgTransform> (); 24 } 25 26 public void add (SvgTransform transform) { 27 transforms.add (transform); 28 } 29 30 public Matrix get_matrix () { 31 Matrix matrix = Matrix.identity (); 32 33 if (transforms.size == 0) { 34 return Matrix.identity (); 35 } 36 37 matrix = transforms.get (0).get_matrix (); 38 39 for (int i = 1; i < transforms.size; i++) { 40 matrix.multiply (matrix, transforms.get (i).get_matrix ()); 41 } 42 43 return matrix; 44 } 45 } 46 47 } 48