annotate Samples/Sdl/TrackerSampleApp.h @ 872:733c6db3e5a3 am-dev

limiting the size of the cache
author Alain Mazy <alain@mazy.be>
date Mon, 01 Jul 2019 13:36:51 +0200
parents e3c56d4f863f
children 0aff28f15ea2
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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) 2017-2019 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 Affero 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 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "../../Framework/Messages/IObserver.h"
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23 #include "../../Framework/Scene2D/OpenGLCompositor.h"
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24 #include "../../Framework/Scene2DViewport/IFlexiblePointerTracker.h"
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25 #include "../../Framework/Scene2DViewport/MeasureTool.h"
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26 #include "../../Framework/Scene2DViewport/PredeclaredTypes.h"
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27 #include "../../Framework/Scene2DViewport/ViewportController.h"
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28
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29 #include <SDL.h>
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30
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31 #include <boost/make_shared.hpp>
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32 #include <boost/shared_ptr.hpp>
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33 #include <boost/enable_shared_from_this.hpp>
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34
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35 namespace OrthancStone
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36 {
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37 enum GuiTool
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38 {
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39 GuiTool_Rotate = 0,
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40 GuiTool_Pan,
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41 GuiTool_Zoom,
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42 GuiTool_LineMeasure,
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43 GuiTool_CircleMeasure,
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44 GuiTool_AngleMeasure,
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45 GuiTool_EllipseMeasure,
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46 GuiTool_LAST
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47 };
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48
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49 const char* MeasureToolToString(size_t i);
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50
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51 static const unsigned int FONT_SIZE_0 = 32;
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52 static const unsigned int FONT_SIZE_1 = 24;
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53
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54 class Scene2D;
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55 class UndoStack;
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56
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57 class TrackerSampleApp : public IObserver
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58 , public boost::enable_shared_from_this<TrackerSampleApp>
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59 {
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60 public:
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61 // 12 because.
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62 TrackerSampleApp(MessageBroker& broker);
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63 void PrepareScene();
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64 void Run();
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65 void SetInfoDisplayMessage(std::string key, std::string value);
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66 void DisableTracker();
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67
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68 boost::shared_ptr<Scene2D> GetScene();
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69 boost::shared_ptr<const Scene2D> GetScene() const;
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70
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71 void HandleApplicationEvent(const SDL_Event& event);
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72
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73 /**
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74 This method is called when the scene transform changes. It allows to
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75 recompute the visual elements whose content depend upon the scene transform
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76 */
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77 void OnSceneTransformChanged(
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78 const ViewportController::SceneTransformChanged& message);
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79
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80 private:
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81 void SelectNextTool();
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82 void CreateRandomMeasureTool();
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83
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84 /**
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85 This returns a random point in the canvas part of the scene, but in
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86 scene coordinates
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87 */
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88 ScenePoint2D GetRandomPointInScene() const;
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89
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90 boost::shared_ptr<IFlexiblePointerTracker> TrackerHitTest(const PointerEvent& e);
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91
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92 boost::shared_ptr<IFlexiblePointerTracker> CreateSuitableTracker(
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93 const SDL_Event& event,
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94 const PointerEvent& e);
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95
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96 void TakeScreenshot(
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97 const std::string& target,
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98 unsigned int canvasWidth,
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99 unsigned int canvasHeight);
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100
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101 /**
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102 This adds the command at the top of the undo stack
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103 */
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104 void Commit(boost::shared_ptr<TrackerCommand> cmd);
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105 void Undo();
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106 void Redo();
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107
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108 private:
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109 void DisplayFloatingCtrlInfoText(const PointerEvent& e);
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110 void DisplayInfoText();
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111 void HideInfoText();
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112
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113 private:
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114 std::auto_ptr<OpenGLCompositor> compositor_;
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115 /**
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116 WARNING: the measuring tools do store a reference to the scene, and it
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117 paramount that the scene gets destroyed AFTER the measurement tools.
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118 */
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119 boost::shared_ptr<ViewportController> controller_;
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120
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121 std::map<std::string, std::string> infoTextMap_;
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122 boost::shared_ptr<IFlexiblePointerTracker> activeTracker_;
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123
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124 //static const int LAYER_POSITION = 150;
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125
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126 int TEXTURE_2x2_1_ZINDEX;
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127 int TEXTURE_1x1_ZINDEX;
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128 int TEXTURE_2x2_2_ZINDEX;
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129 int LINESET_1_ZINDEX;
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130 int LINESET_2_ZINDEX;
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131 int FLOATING_INFOTEXT_LAYER_ZINDEX;
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132 int FIXED_INFOTEXT_LAYER_ZINDEX;
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133
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134 GuiTool currentTool_;
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135 boost::shared_ptr<UndoStack> undoStack_;
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136 };
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137
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138 }