annotate Samples/Sdl/TrackerSampleApp.h @ 698:8b6adfb62a2f refactor-viewport-controller

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author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 15 May 2019 16:56:17 +0200
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children 059e1fd05fd6
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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 #include <Framework/Scene2DViewport/PointerTypes.h>
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22
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23 #include <Framework/Messages/IObserver.h>
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24
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25 #include <Framework/Scene2D/OpenGLCompositor.h>
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26
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27 #include <Framework/Scene2DViewport/ViewportController.h>
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28 #include <Framework/Scene2DViewport/IFlexiblePointerTracker.h>
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29 #include <Framework/Scene2DViewport/MeasureTools.h>
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30
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31 #include <SDL.h>
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32
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33 #include <boost/make_shared.hpp>
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34 #include <boost/shared_ptr.hpp>
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35 #include <boost/enable_shared_from_this.hpp>
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36
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37 namespace OrthancStone
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38 {
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39 enum GuiTool
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40 {
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41 GuiTool_Rotate = 0,
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42 GuiTool_Pan,
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43 GuiTool_Zoom,
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44 GuiTool_LineMeasure,
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45 GuiTool_CircleMeasure,
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46 GuiTool_AngleMeasure,
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47 GuiTool_EllipseMeasure,
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48 GuiTool_LAST
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49 };
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50
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51 const char* MeasureToolToString(size_t i);
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52
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53 static const unsigned int FONT_SIZE_0 = 32;
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54 static const unsigned int FONT_SIZE_1 = 24;
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55
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56 class Scene2D;
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57
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58 class TrackerSampleApp : public IObserver
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59 , public boost::enable_shared_from_this<TrackerSampleApp>
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60 {
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61 public:
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62 // 12 because.
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63 TrackerSampleApp(MessageBroker& broker);
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64 void PrepareScene();
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65 void Run();
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66 void SetInfoDisplayMessage(std::string key, std::string value);
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67 void DisableTracker();
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68
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69 Scene2DPtr GetScene();
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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(const Scene2D::SceneTransformChanged& message);
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78
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79 private:
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80 void SelectNextTool();
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81
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82
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83 FlexiblePointerTrackerPtr TrackerHitTest(const PointerEvent& e);
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84
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85 FlexiblePointerTrackerPtr CreateSuitableTracker(
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86 const SDL_Event& event,
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87 const PointerEvent& e);
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88
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89 void TakeScreenshot(
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90 const std::string& target,
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91 unsigned int canvasWidth,
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92 unsigned int canvasHeight);
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93
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94 /**
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95 This adds the command at the top of the undo stack
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96 */
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97 void Commit(TrackerCommandPtr cmd);
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98 void Undo();
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99 void Redo();
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100
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101 private:
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102 void DisplayFloatingCtrlInfoText(const PointerEvent& e);
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103 void DisplayInfoText();
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104 void HideInfoText();
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105
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106 private:
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107 std::auto_ptr<OpenGLCompositor> compositor_;
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108 /**
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109 WARNING: the measuring tools do store a reference to the scene, and it
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110 paramount that the scene gets destroyed AFTER the measurement tools.
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111 */
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112 ViewportControllerPtr controller_;
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113
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114 std::map<std::string, std::string> infoTextMap_;
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115 FlexiblePointerTrackerPtr activeTracker_;
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116 std::vector<TrackerCommandPtr> undoStack_;
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117
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118 // we store the measure tools here so that they don't get deleted
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119 std::vector<MeasureToolPtr> measureTools_;
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120
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121 //static const int LAYER_POSITION = 150;
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122
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123
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124 int TEXTURE_2x2_1_ZINDEX;
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125 int TEXTURE_1x1_ZINDEX;
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126 int TEXTURE_2x2_2_ZINDEX;
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127 int LINESET_1_ZINDEX;
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128 int LINESET_2_ZINDEX;
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129 int FLOATING_INFOTEXT_LAYER_ZINDEX;
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130 int FIXED_INFOTEXT_LAYER_ZINDEX;
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131
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132 GuiTool currentTool_;
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133 };
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134
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135 }