Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/OpenGLBasicPolylineRenderer.cpp @ 2093:c336e07b675c dicom-sr
refactoring
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 08 Nov 2023 12:37:42 +0100 |
parents | 07964689cb0b |
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OpenGLBasicPolylineRenderer
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1 /** |
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OpenGLBasicPolylineRenderer
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 |
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24 #include "OpenGLBasicPolylineRenderer.h" |
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25 |
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26 #include "../../OpenGL/OpenGLIncludes.h" |
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27 |
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28 namespace OrthancStone |
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29 { |
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30 namespace Internals |
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31 { |
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32 OpenGLBasicPolylineRenderer::OpenGLBasicPolylineRenderer(OpenGL::IOpenGLContext& context, |
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33 const PolylineSceneLayer& layer) : |
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34 context_(context) |
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35 { |
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36 layer_.Copy(layer); |
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37 } |
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38 |
1571 | 39 void OpenGLBasicPolylineRenderer::Render(const AffineTransform2D& transform, |
40 unsigned int canvasWidth, | |
41 unsigned int canvasHeight) | |
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42 { |
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43 if (!context_.IsContextLost()) |
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44 { |
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45 AffineTransform2D t = AffineTransform2D::Combine( |
1571 | 46 AffineTransform2D::CreateOpenGLClipspace(canvasWidth, canvasHeight), |
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47 transform); |
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48 |
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49 glUseProgram(0); |
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50 |
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51 glBegin(GL_LINES); |
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52 |
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53 for (size_t i = 0; i < layer_.GetChainsCount(); i++) |
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54 { |
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55 const Color& color = layer_.GetColor(i); |
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56 glColor3ub(color.GetRed(), color.GetGreen(), color.GetBlue()); |
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57 |
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58 const PolylineSceneLayer::Chain& chain = layer_.GetChain(i); |
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59 |
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60 if (chain.size() > 1) |
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61 { |
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62 ScenePoint2D previous = chain[0].Apply(t); |
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63 |
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64 for (size_t j = 1; j < chain.size(); j++) |
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65 { |
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66 ScenePoint2D p = chain[j].Apply(t); |
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67 |
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68 glVertex2f(static_cast<GLfloat>(previous.GetX()), |
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69 static_cast<GLfloat>(previous.GetY())); |
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70 glVertex2f(static_cast<GLfloat>(p.GetX()), |
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71 static_cast<GLfloat>(p.GetY())); |
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72 |
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73 previous = p; |
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74 } |
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75 |
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76 if (layer_.IsClosedChain(i)) |
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77 { |
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78 ScenePoint2D p = chain[0].Apply(t); |
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79 |
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80 glVertex2f(static_cast<GLfloat>(previous.GetX()), |
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81 static_cast<GLfloat>(previous.GetY())); |
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82 glVertex2f(static_cast<GLfloat>(p.GetX()), |
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83 static_cast<GLfloat>(p.GetY())); |
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84 } |
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85 } |
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86 } |
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87 |
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88 glEnd(); |
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89 } |
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90 } |
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91 |
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92 |
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93 void OpenGLBasicPolylineRenderer::Update(const ISceneLayer& layer) |
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94 { |
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95 layer_.Copy(dynamic_cast<const PolylineSceneLayer&>(layer)); |
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96 } |
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97 } |
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98 } |