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annotate Framework/Scene2D/Scene2D.cpp @ 934:094d10ed7ec2

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VolumeSceneLayerSource dtor now clears the layer
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 29 Jul 2019 13:46:29 +0200
parents 15d493101c1e
children 685c9a2d115f
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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 "Scene2D.h"
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23
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24 #include <Core/OrthancException.h>
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25
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26
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27 namespace OrthancStone
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28 {
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29 class Scene2D::Item
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30 {
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31 private:
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32 std::auto_ptr<ISceneLayer> layer_;
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33 uint64_t identifier_;
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34
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35 public:
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36 Item(ISceneLayer* layer,
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37 uint64_t identifier) :
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38 layer_(layer),
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39 identifier_(identifier)
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40 {
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41 if (layer == NULL)
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42 {
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43 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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44 }
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45 }
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46
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47 ISceneLayer& GetLayer() const
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48 {
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49 if (layer_.get() == NULL)
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50 {
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51 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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52 }
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53 else
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54 {
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55 return *layer_;
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56 }
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57 }
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58
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59 ISceneLayer* ReleaseLayer()
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60 {
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61 if (layer_.get() == NULL)
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62 {
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63 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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64 }
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65 else
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66 {
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67 return layer_.release();
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68 }
602
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69 }
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70
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71 uint64_t GetIdentifier() const
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72 {
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73 return identifier_;
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74 }
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75 };
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76
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77
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78 Scene2D::Scene2D(const Scene2D& other)
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79 : sceneToCanvas_(other.sceneToCanvas_)
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80 , canvasToScene_(other.canvasToScene_)
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81 , layerCounter_(0)
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82 {
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83 for (Content::const_iterator it = other.content_.begin();
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84 it != other.content_.end(); ++it)
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85 {
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86 content_[it->first] = new Item(it->second->GetLayer().Clone(), layerCounter_++);
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87 }
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88 }
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89
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90
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91 Scene2D::~Scene2D()
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92 {
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93 for (Content::iterator it = content_.begin();
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94 it != content_.end(); ++it)
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95 {
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96 assert(it->second != NULL);
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97 delete it->second;
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98 }
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99 }
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100
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101
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102 void Scene2D::SetLayer(int depth,
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103 ISceneLayer* layer) // Takes ownership
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104 {
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105 LOG(TRACE) << "SetLayer(" << depth << ", " << reinterpret_cast<intptr_t>(layer) << ")";
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106 std::auto_ptr<Item> item(new Item(layer, layerCounter_++));
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107
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108 if (layer == NULL)
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109 {
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110 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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111 }
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112
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113 Content::iterator found = content_.find(depth);
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114
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115 if (found == content_.end())
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116 {
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117 content_[depth] = item.release();
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118 }
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119 else
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120 {
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121 assert(found->second != NULL);
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122 delete found->second;
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123 found->second = item.release();
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124 }
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125 }
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126
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127
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128 void Scene2D::DeleteLayer(int depth)
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129 {
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130
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131 Content::iterator found = content_.find(depth);
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132
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133 if (found != content_.end())
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134 {
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135 LOG(TRACE) << "DeleteLayer --found-- (" << depth << ")";
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136 assert(found->second != NULL);
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137 delete found->second;
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138 content_.erase(found);
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139 }
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140 }
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141
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142
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143 bool Scene2D::HasLayer(int depth) const
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144 {
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145 return (content_.find(depth) != content_.end());
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146 }
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147
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148
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149 ISceneLayer& Scene2D::GetLayer(int depth) const
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150 {
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151 Content::const_iterator found = content_.find(depth);
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152
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153 if (found == content_.end())
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154 {
606
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155 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
602
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156 }
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157 else
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158 {
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159 assert(found->second != NULL);
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160 return found->second->GetLayer();
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161 }
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162 }
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163
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164
632
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165 int Scene2D::GetMinDepth() const
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166 {
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167 if (content_.size() == 0)
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168 return 0;
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169 else
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170 return content_.begin()->first;
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171 }
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172
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173
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174 int Scene2D::GetMaxDepth() const
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175 {
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176 if (content_.size() == 0)
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177 return 0;
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178 else
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179 return content_.rbegin()->first;
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180 }
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181
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182 ISceneLayer* Scene2D::ReleaseLayer(int depth)
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183 {
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184 Content::iterator found = content_.find(depth);
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185
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186 if (found == content_.end())
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187 {
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188 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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189 }
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190 else
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191 {
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192 assert(found->second != NULL);
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193
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194 std::auto_ptr<ISceneLayer> layer(found->second->ReleaseLayer());
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195 assert(layer.get() != NULL);
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196
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197 content_.erase(found);
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198
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199 return layer.release();
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200 }
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201 }
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202
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203
600
6129b1e5ba42 BasicScene SDL sample
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204 void Scene2D::Apply(IVisitor& visitor) const
582
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205 {
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206 for (Content::const_iterator it = content_.begin();
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207 it != content_.end(); ++it)
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208 {
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209 assert(it->second != NULL);
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210 visitor.Visit(it->second->GetLayer(), it->second->GetIdentifier(), it->first);
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211 }
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212 }
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213
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214
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215 void Scene2D::SetSceneToCanvasTransform(const AffineTransform2D& transform)
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216 {
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217 // Make sure the transform is invertible before making any change
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218 AffineTransform2D inverse = AffineTransform2D::Invert(transform);
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219
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220 sceneToCanvas_ = transform;
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221 canvasToScene_ = inverse;
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222 }
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223
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224 void Scene2D::FitContent(unsigned int canvasWidth,
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225 unsigned int canvasHeight)
e36e69a380a5 Scene2D
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226 {
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227 Extent2D extent;
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228
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229 for (Content::const_iterator it = content_.begin();
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230 it != content_.end(); ++it)
e36e69a380a5 Scene2D
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231 {
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232 assert(it->second != NULL);
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233
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234 Extent2D tmp;
602
03c4b998fcd0 display scene positions in the basic sample
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235 if (it->second->GetLayer().GetBoundingBox(tmp))
582
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236 {
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237 extent.Union(tmp);
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238 }
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239 }
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240
e36e69a380a5 Scene2D
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241 if (!extent.IsEmpty())
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242 {
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243 double zoomX = static_cast<double>(canvasWidth) / extent.GetWidth();
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244 double zoomY = static_cast<double>(canvasHeight) / extent.GetHeight();
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245
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246 double zoom = std::min(zoomX, zoomY);
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247 if (LinearAlgebra::IsCloseToZero(zoom))
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248 {
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249 zoom = 1;
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250 }
e36e69a380a5 Scene2D
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251
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252 double panX = extent.GetCenterX();
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253 double panY = extent.GetCenterY();
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254
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255 // Bring the center of the scene to (0,0)
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256 AffineTransform2D t1 = AffineTransform2D::CreateOffset(-panX, -panY);
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257
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258 // Scale the scene
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259 AffineTransform2D t2 = AffineTransform2D::CreateScaling(zoom, zoom);
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260
e36e69a380a5 Scene2D
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261 SetSceneToCanvasTransform(AffineTransform2D::Combine(t2, t1));
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262 }
e36e69a380a5 Scene2D
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263 }
e36e69a380a5 Scene2D
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264 }