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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 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include "SampleApplicationBase.h"
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36
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37 #include "../Framework/Widgets/LayeredSceneWidget.h"
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38 #include "../Framework/Widgets/IWorldSceneInteractor.h"
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39 #include "../Framework/Toolbox/ParallelSlicesCursor.h"
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40
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41 namespace OrthancStone
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42 {
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43 namespace Samples
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44 {
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45 /**
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46 * This is a basic mouse interactor for sample applications. It
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47 * contains a set of parallel slices in the 3D space. The mouse
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48 * wheel events make the widget change the slice that is
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49 * displayed.
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50 **/
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51 class SampleInteractor : public IWorldSceneInteractor
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52 {
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53 private:
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54 ParallelSlicesCursor cursor_;
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55
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56 public:
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57 SampleInteractor(VolumeImage& volume,
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58 VolumeProjection projection,
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59 bool reverse)
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60 {
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61 std::auto_ptr<ParallelSlices> slices(volume.GetGeometry(projection, reverse));
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62 cursor_.SetGeometry(*slices);
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63 }
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64
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65 SampleInteractor(ISeriesLoader& series,
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66 bool reverse)
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67 {
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68 if (reverse)
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69 {
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70 std::auto_ptr<ParallelSlices> slices(series.GetGeometry().Reverse());
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71 cursor_.SetGeometry(*slices);
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72 }
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73 else
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74 {
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75 cursor_.SetGeometry(series.GetGeometry());
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76 }
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77 }
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78
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79 SampleInteractor(const ParallelSlices& slices)
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80 {
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81 cursor_.SetGeometry(slices);
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82 }
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83
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84 ParallelSlicesCursor& GetCursor()
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85 {
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86 return cursor_;
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87 }
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88
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89 void AddWidget(LayeredSceneWidget& widget)
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90 {
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91 widget.SetInteractor(*this);
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92 widget.SetSlice(cursor_.GetCurrentSlice());
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93 }
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94
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95 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
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96 const SliceGeometry& slice,
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97 const ViewportGeometry& view,
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98 MouseButton button,
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99 double x,
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100 double y,
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101 IStatusBar* statusBar)
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102 {
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103 return NULL;
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104 }
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105
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106 virtual void MouseOver(CairoContext& context,
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107 WorldSceneWidget& widget,
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108 const SliceGeometry& slice,
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109 const ViewportGeometry& view,
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110 double x,
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111 double y,
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112 IStatusBar* statusBar)
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113 {
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114 }
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115
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116 virtual void MouseWheel(WorldSceneWidget& widget,
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117 MouseWheelDirection direction,
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118 KeyboardModifiers modifiers,
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119 IStatusBar* statusBar)
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120 {
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121 if (cursor_.ApplyWheelEvent(direction, modifiers))
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122 {
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123 dynamic_cast<LayeredSceneWidget&>(widget).SetSlice(cursor_.GetCurrentSlice());
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124 }
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125 }
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126
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127 virtual void KeyPressed(WorldSceneWidget& widget,
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128 char key,
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129 KeyboardModifiers modifiers,
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130 IStatusBar* statusBar)
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131 {
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132 }
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133
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134 void LookupSliceContainingPoint(LayeredSceneWidget& widget,
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135 const Vector& p)
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136 {
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137 if (cursor_.LookupSliceContainingPoint(p))
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138 {
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139 widget.SetSlice(cursor_.GetCurrentSlice());
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140 }
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141 }
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142 };
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143 }
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144 }
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