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annotate OrthancStone/Sources/Scene2D/Internals/OpenGLBasicPolylineRenderer.cpp @ 1598:8563ea5d8ae4

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relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 26 Oct 2020 20:49:28 +0100
parents 85e117739eca
children 9ac2a65d4172
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1 /**
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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) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "OpenGLBasicPolylineRenderer.h"
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24
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25 #include "../../OpenGL/OpenGLIncludes.h"
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27 namespace OrthancStone
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28 {
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29 namespace Internals
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30 {
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31 OpenGLBasicPolylineRenderer::OpenGLBasicPolylineRenderer(OpenGL::IOpenGLContext& context,
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32 const PolylineSceneLayer& layer) :
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33 context_(context)
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34 {
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35 layer_.Copy(layer);
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36 }
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37
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38 void OpenGLBasicPolylineRenderer::Render(const AffineTransform2D& transform,
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39 unsigned int canvasWidth,
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40 unsigned int canvasHeight)
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41 {
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42 if (!context_.IsContextLost())
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43 {
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44 AffineTransform2D t = AffineTransform2D::Combine(
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45 AffineTransform2D::CreateOpenGLClipspace(canvasWidth, canvasHeight),
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46 transform);
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48 glUseProgram(0);
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49
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50 glBegin(GL_LINES);
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51
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52 for (size_t i = 0; i < layer_.GetChainsCount(); i++)
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53 {
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54 const Color& color = layer_.GetColor(i);
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55 glColor3ub(color.GetRed(), color.GetGreen(), color.GetBlue());
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56
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57 const PolylineSceneLayer::Chain& chain = layer_.GetChain(i);
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58
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59 if (chain.size() > 1)
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60 {
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61 ScenePoint2D previous = chain[0].Apply(t);
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62
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63 for (size_t j = 1; j < chain.size(); j++)
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64 {
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65 ScenePoint2D p = chain[j].Apply(t);
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66
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67 glVertex2f(static_cast<GLfloat>(previous.GetX()),
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68 static_cast<GLfloat>(previous.GetY()));
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69 glVertex2f(static_cast<GLfloat>(p.GetX()),
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70 static_cast<GLfloat>(p.GetY()));
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72 previous = p;
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73 }
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75 if (layer_.IsClosedChain(i))
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76 {
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77 ScenePoint2D p = chain[0].Apply(t);
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78
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79 glVertex2f(static_cast<GLfloat>(previous.GetX()),
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80 static_cast<GLfloat>(previous.GetY()));
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81 glVertex2f(static_cast<GLfloat>(p.GetX()),
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82 static_cast<GLfloat>(p.GetY()));
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83 }
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84 }
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85 }
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86
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87 glEnd();
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88 }
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89 }
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91
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92 void OpenGLBasicPolylineRenderer::Update(const ISceneLayer& layer)
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93 {
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94 layer_.Copy(dynamic_cast<const PolylineSceneLayer&>(layer));
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95 }
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96 }
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97 }