Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Scene2D/Scene2D.cpp @ 1610:b7630b1a0253

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ISceneLayer::GetBoundingBox() returns void
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 29 Oct 2020 17:13:13 +0100
parents 8563ea5d8ae4
children 9ac2a65d4172
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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) 2017-2020 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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "Scene2D.h"
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24
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25 #include <OrthancException.h>
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27
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28 namespace OrthancStone
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29 {
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30 class Scene2D::Item
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31 {
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32 private:
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33 std::unique_ptr<ISceneLayer> layer_;
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34 uint64_t identifier_;
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35
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36 public:
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37 Item(ISceneLayer* layer,
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38 uint64_t identifier) :
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39 layer_(layer),
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40 identifier_(identifier)
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41 {
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42 if (layer == NULL)
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43 {
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44 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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45 }
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46 }
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47
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48 ISceneLayer& GetLayer() const
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49 {
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50 if (layer_.get() == NULL)
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51 {
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52 LOG(ERROR) << "Scene2D::Item::GetLayer(): (layer_.get() == NULL)";
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53 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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54 }
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55 else
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56 {
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57 return *layer_;
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58 }
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59 }
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60
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61 ISceneLayer* ReleaseLayer()
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62 {
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63 if (layer_.get() == NULL)
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64 {
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65 LOG(ERROR) << "Scene2D::Item::ReleaseLayer(): (layer_.get() == NULL)";
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66 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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67 }
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68 else
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69 {
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70 return layer_.release();
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71 }
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72 }
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73
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74 uint64_t GetIdentifier() const
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75 {
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76 return identifier_;
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77 }
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78 };
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79
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80
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81 Scene2D::Scene2D(const Scene2D& other)
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82 : sceneToCanvas_(other.sceneToCanvas_)
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83 , canvasToScene_(other.canvasToScene_)
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84 , layerCounter_(0)
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85 {
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86 for (Content::const_iterator it = other.content_.begin();
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87 it != other.content_.end(); ++it)
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88 {
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89 content_[it->first] = new Item(it->second->GetLayer().Clone(), layerCounter_++);
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90 }
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91 }
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92
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93
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94 Scene2D::~Scene2D()
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95 {
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96 for (Content::iterator it = content_.begin();
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97 it != content_.end(); ++it)
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98 {
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99 assert(it->second != NULL);
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100 delete it->second;
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101 }
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102 }
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103
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104
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105 void Scene2D::SetLayer(int depth,
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106 ISceneLayer* layer) // Takes ownership
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107 {
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108 LOG(TRACE) << "SetLayer(" << depth << ", " << reinterpret_cast<intptr_t>(layer) << ")";
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109 std::unique_ptr<Item> item(new Item(layer, layerCounter_++));
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110
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111 if (layer == NULL)
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112 {
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113 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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114 }
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115
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116 Content::iterator found = content_.find(depth);
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117
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118 if (found == content_.end())
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119 {
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120 content_[depth] = item.release();
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121 }
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122 else
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123 {
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124 assert(found->second != NULL);
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125 delete found->second;
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126 found->second = item.release();
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127 }
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128 }
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129
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130
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131 void Scene2D::DeleteLayer(int depth)
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132 {
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133
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134 Content::iterator found = content_.find(depth);
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135
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136 if (found != content_.end())
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137 {
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138 LOG(TRACE) << "DeleteLayer --found-- (" << depth << ")";
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139 assert(found->second != NULL);
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140 delete found->second;
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141 content_.erase(found);
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142 }
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143 }
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144
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145
602
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146 bool Scene2D::HasLayer(int depth) const
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147 {
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148 return (content_.find(depth) != content_.end());
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149 }
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150
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151
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152 ISceneLayer& Scene2D::GetLayer(int depth) const
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153 {
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154 Content::const_iterator found = content_.find(depth);
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155
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156 if (found == content_.end())
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157 {
606
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158 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
602
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159 }
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160 else
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161 {
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162 assert(found->second != NULL);
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163 return found->second->GetLayer();
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164 }
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165 }
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166
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167
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168 int Scene2D::GetMinDepth() const
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169 {
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170 if (content_.size() == 0)
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171 return 0;
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172 else
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173 return content_.begin()->first;
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174 }
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175
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176
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177 int Scene2D::GetMaxDepth() const
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178 {
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179 if (content_.size() == 0)
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180 return 0;
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181 else
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182 return content_.rbegin()->first;
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183 }
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184
606
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185 ISceneLayer* Scene2D::ReleaseLayer(int depth)
d9c0a66304cb Scene2D::ReleaseLayer()
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186 {
d9c0a66304cb Scene2D::ReleaseLayer()
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187 Content::iterator found = content_.find(depth);
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188
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189 if (found == content_.end())
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190 {
d9c0a66304cb Scene2D::ReleaseLayer()
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191 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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192 }
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193 else
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194 {
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195 assert(found->second != NULL);
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196
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197 std::unique_ptr<ISceneLayer> layer(found->second->ReleaseLayer());
606
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198 assert(layer.get() != NULL);
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199
d9c0a66304cb Scene2D::ReleaseLayer()
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200 content_.erase(found);
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201
d9c0a66304cb Scene2D::ReleaseLayer()
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202 return layer.release();
d9c0a66304cb Scene2D::ReleaseLayer()
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203 }
d9c0a66304cb Scene2D::ReleaseLayer()
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204 }
942
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205
600
6129b1e5ba42 BasicScene SDL sample
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206 void Scene2D::Apply(IVisitor& visitor) const
582
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207 {
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208 for (Content::const_iterator it = content_.begin();
e36e69a380a5 Scene2D
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209 it != content_.end(); ++it)
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210 {
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211 assert(it->second != NULL);
1211
d10d2acb8a02 compositors do not keep a reference to the scene anymore
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parents: 956
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212 visitor.Visit(*this, it->second->GetLayer(), it->second->GetIdentifier(), it->first);
582
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213 }
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214 }
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215
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216
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diff changeset
217 void Scene2D::SetSceneToCanvasTransform(const AffineTransform2D& transform)
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218 {
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219 // Make sure the transform is invertible before making any change
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220 AffineTransform2D inverse = AffineTransform2D::Invert(transform);
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221
e36e69a380a5 Scene2D
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222 sceneToCanvas_ = transform;
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223 canvasToScene_ = inverse;
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diff changeset
224 }
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parents:
diff changeset
225
1610
b7630b1a0253 ISceneLayer::GetBoundingBox() returns void
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diff changeset
226 void Scene2D::GetBoundingBox(Extent2D& target) const
1374
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parents: 1298
diff changeset
227 {
1610
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parents: 1598
diff changeset
228 target.Clear();
1374
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diff changeset
229
1e4878ed1d77 added GetBoundingBox to Scene2D
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parents: 1298
diff changeset
230 for (Content::const_iterator it = content_.begin();
1e4878ed1d77 added GetBoundingBox to Scene2D
Alain Mazy <alain@mazy.be>
parents: 1298
diff changeset
231 it != content_.end(); ++it)
1e4878ed1d77 added GetBoundingBox to Scene2D
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parents: 1298
diff changeset
232 {
1e4878ed1d77 added GetBoundingBox to Scene2D
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parents: 1298
diff changeset
233 assert(it->second != NULL);
1e4878ed1d77 added GetBoundingBox to Scene2D
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parents: 1298
diff changeset
234
1e4878ed1d77 added GetBoundingBox to Scene2D
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parents: 1298
diff changeset
235 Extent2D tmp;
1610
b7630b1a0253 ISceneLayer::GetBoundingBox() returns void
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1598
diff changeset
236 it->second->GetLayer().GetBoundingBox(tmp);
b7630b1a0253 ISceneLayer::GetBoundingBox() returns void
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1598
diff changeset
237 target.Union(tmp);
1374
1e4878ed1d77 added GetBoundingBox to Scene2D
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parents: 1298
diff changeset
238 }
1e4878ed1d77 added GetBoundingBox to Scene2D
Alain Mazy <alain@mazy.be>
parents: 1298
diff changeset
239 }
1e4878ed1d77 added GetBoundingBox to Scene2D
Alain Mazy <alain@mazy.be>
parents: 1298
diff changeset
240
582
e36e69a380a5 Scene2D
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diff changeset
241 void Scene2D::FitContent(unsigned int canvasWidth,
e36e69a380a5 Scene2D
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parents:
diff changeset
242 unsigned int canvasHeight)
e36e69a380a5 Scene2D
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parents:
diff changeset
243 {
e36e69a380a5 Scene2D
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parents:
diff changeset
244 Extent2D extent;
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diff changeset
245
1374
1e4878ed1d77 added GetBoundingBox to Scene2D
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diff changeset
246 GetBoundingBox(extent);
582
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247
e36e69a380a5 Scene2D
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diff changeset
248 if (!extent.IsEmpty())
e36e69a380a5 Scene2D
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diff changeset
249 {
e36e69a380a5 Scene2D
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parents:
diff changeset
250 double zoomX = static_cast<double>(canvasWidth) / extent.GetWidth();
e36e69a380a5 Scene2D
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diff changeset
251 double zoomY = static_cast<double>(canvasHeight) / extent.GetHeight();
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diff changeset
252
e36e69a380a5 Scene2D
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diff changeset
253 double zoom = std::min(zoomX, zoomY);
e36e69a380a5 Scene2D
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parents:
diff changeset
254 if (LinearAlgebra::IsCloseToZero(zoom))
e36e69a380a5 Scene2D
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parents:
diff changeset
255 {
e36e69a380a5 Scene2D
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parents:
diff changeset
256 zoom = 1;
e36e69a380a5 Scene2D
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parents:
diff changeset
257 }
e36e69a380a5 Scene2D
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parents:
diff changeset
258
e36e69a380a5 Scene2D
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parents:
diff changeset
259 double panX = extent.GetCenterX();
e36e69a380a5 Scene2D
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parents:
diff changeset
260 double panY = extent.GetCenterY();
e36e69a380a5 Scene2D
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parents:
diff changeset
261
e36e69a380a5 Scene2D
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parents:
diff changeset
262 // Bring the center of the scene to (0,0)
e36e69a380a5 Scene2D
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parents:
diff changeset
263 AffineTransform2D t1 = AffineTransform2D::CreateOffset(-panX, -panY);
e36e69a380a5 Scene2D
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parents:
diff changeset
264
e36e69a380a5 Scene2D
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parents:
diff changeset
265 // Scale the scene
e36e69a380a5 Scene2D
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parents:
diff changeset
266 AffineTransform2D t2 = AffineTransform2D::CreateScaling(zoom, zoom);
e36e69a380a5 Scene2D
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parents:
diff changeset
267
e36e69a380a5 Scene2D
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parents:
diff changeset
268 SetSceneToCanvasTransform(AffineTransform2D::Combine(t2, t1));
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parents:
diff changeset
269 }
e36e69a380a5 Scene2D
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parents:
diff changeset
270 }
e36e69a380a5 Scene2D
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parents:
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271 }