Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Scene2DViewport/LayerHolder.cpp @ 1870:3889ae96d2e9

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added copyright UCLouvain
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jan 2022 11:04:09 +0100
parents 911cd9a11ad3
children 7053b8a0aaec
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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) 2017-2021 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2021 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 #include "LayerHolder.h"
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24 #include "../Scene2D/TextSceneLayer.h"
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25 #include "../Scene2D/PolylineSceneLayer.h"
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26 #include "../Scene2D/Scene2D.h"
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27 #include "../Viewport/IViewport.h"
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28 #include "../StoneException.h"
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29 #include "ViewportController.h"
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30
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31 namespace OrthancStone
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32 {
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33 LayerHolder::LayerHolder(
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34 boost::weak_ptr<IViewport> viewport,
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35 int polylineLayerCount,
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36 int textLayerCount,
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37 int infoTextCount)
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38 : textLayerCount_(textLayerCount)
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39 , polylineLayerCount_(polylineLayerCount)
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40 , infoTextCount_(infoTextCount)
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41 , viewport_(viewport)
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42 , baseLayerIndex_(-1)
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43 {
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44
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45 }
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46
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47 IViewport::ILock* LayerHolder::GetViewportLock()
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48 {
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49 boost::shared_ptr<IViewport> viewport = viewport_.lock();
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50 if (viewport)
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51 return viewport->Lock();
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52 else
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53 return NULL;
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54 }
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55
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56 void LayerHolder::CreateLayers()
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57 {
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58 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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59 ViewportController& controller = lock->GetController();
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60 Scene2D& scene = controller.GetScene();
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62 assert(baseLayerIndex_ == -1);
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63
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64 baseLayerIndex_ = scene.GetMaxDepth() + 100;
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66 for (int i = 0; i < polylineLayerCount_; ++i)
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67 {
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68 std::unique_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer());
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69 scene.SetLayer(baseLayerIndex_ + i, layer.release());
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70 }
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71
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72 for (int i = 0; i < textLayerCount_; ++i)
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73 {
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74 std::unique_ptr<TextSceneLayer> layer(new TextSceneLayer());
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75 scene.SetLayer(baseLayerIndex_ + polylineLayerCount_ + i, layer.release());
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76 }
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77 lock->Invalidate();
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78 }
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79
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80 void LayerHolder::CreateLayersIfNeeded()
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81 {
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82 if (baseLayerIndex_ == -1)
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83 CreateLayers();
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84 }
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85
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86 bool LayerHolder::AreLayersCreated() const
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87 {
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88 return (baseLayerIndex_ != -1);
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89 }
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91 void LayerHolder::DeleteLayersIfNeeded()
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92 {
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93 if (baseLayerIndex_ != -1)
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94 DeleteLayers();
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95 }
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96
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97 void LayerHolder::DeleteLayers()
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98 {
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99 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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100 if (lock)
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101 {
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102 Scene2D& scene = lock->GetController().GetScene();
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103
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104 for (int i = 0; i < textLayerCount_ + polylineLayerCount_; ++i)
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105 {
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106 ORTHANC_ASSERT(scene.HasLayer(baseLayerIndex_ + i), "No layer");
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107 scene.DeleteLayer(baseLayerIndex_ + i);
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108 }
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109 baseLayerIndex_ = -1;
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110 lock->Invalidate();
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111 }
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112 }
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113
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114 PolylineSceneLayer* LayerHolder::GetPolylineLayer(int index /*= 0*/)
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115 {
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116 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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117 const Scene2D& scene = lock->GetController().GetScene();
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118
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119 ORTHANC_ASSERT(baseLayerIndex_ != -1);
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120 ORTHANC_ASSERT(scene.HasLayer(GetPolylineLayerIndex(index)));
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121 ISceneLayer* layer = &(scene.GetLayer(GetPolylineLayerIndex(index)));
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122
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123 PolylineSceneLayer* concreteLayer =
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124 dynamic_cast<PolylineSceneLayer*>(layer);
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125
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126 ORTHANC_ASSERT(concreteLayer != NULL);
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127 return concreteLayer;
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128 }
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129
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130 TextSceneLayer* LayerHolder::GetTextLayer(int index /*= 0*/)
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131 {
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132 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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133 const Scene2D& scene = lock->GetController().GetScene();
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134
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135 ORTHANC_ASSERT(baseLayerIndex_ != -1);
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136 ORTHANC_ASSERT(scene.HasLayer(GetTextLayerIndex(index)));
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137 ISceneLayer* layer = &(scene.GetLayer(GetTextLayerIndex(index)));
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138
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139 TextSceneLayer* concreteLayer =
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140 dynamic_cast<TextSceneLayer*>(layer);
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141
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142 ORTHANC_ASSERT(concreteLayer != NULL);
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143 return concreteLayer;
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144 }
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145
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146 int LayerHolder::GetPolylineLayerIndex(int index /*= 0*/)
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147 {
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148 ORTHANC_ASSERT(index < polylineLayerCount_);
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149 return baseLayerIndex_ + index;
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150 }
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151
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152 int LayerHolder::GetTextLayerIndex(int index /*= 0*/)
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153 {
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154 ORTHANC_ASSERT(index < textLayerCount_);
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155
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156 // the text layers are placed right after the polyline layers
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157 // this means they are drawn ON TOP
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158 return baseLayerIndex_ + polylineLayerCount_ + index;
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159 }
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160 }