Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Scene2D/Scene2D.cpp @ 1556:8898f8f755c8

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typo
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 18 Aug 2020 11:58:47 +0200
parents 244ad1e4e76a
children 4fb8fdf03314
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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 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 <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::unique_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 LOG(ERROR) << "Scene2D::Item::GetLayer(): (layer_.get() == NULL)";
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52 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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53 }
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54 else
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55 {
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56 return *layer_;
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57 }
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58 }
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59
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60 ISceneLayer* ReleaseLayer()
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61 {
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62 if (layer_.get() == NULL)
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63 {
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64 LOG(ERROR) << "Scene2D::Item::ReleaseLayer(): (layer_.get() == NULL)";
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65 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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66 }
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67 else
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68 {
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69 return layer_.release();
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70 }
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71 }
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72
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73 uint64_t GetIdentifier() const
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74 {
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75 return identifier_;
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76 }
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77 };
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78
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79
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80 Scene2D::Scene2D(const Scene2D& other)
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81 : sceneToCanvas_(other.sceneToCanvas_)
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82 , canvasToScene_(other.canvasToScene_)
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83 , layerCounter_(0)
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84 {
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85 for (Content::const_iterator it = other.content_.begin();
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86 it != other.content_.end(); ++it)
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87 {
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88 content_[it->first] = new Item(it->second->GetLayer().Clone(), layerCounter_++);
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89 }
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90 }
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91
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92
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93 Scene2D::~Scene2D()
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94 {
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95 for (Content::iterator it = content_.begin();
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96 it != content_.end(); ++it)
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97 {
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98 assert(it->second != NULL);
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99 delete it->second;
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100 }
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101 }
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102
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103
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104 void Scene2D::SetLayer(int depth,
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105 ISceneLayer* layer) // Takes ownership
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106 {
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107 LOG(TRACE) << "SetLayer(" << depth << ", " << reinterpret_cast<intptr_t>(layer) << ")";
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108 std::unique_ptr<Item> item(new Item(layer, layerCounter_++));
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109
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110 if (layer == NULL)
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111 {
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112 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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113 }
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114
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115 Content::iterator found = content_.find(depth);
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116
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117 if (found == content_.end())
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118 {
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119 content_[depth] = item.release();
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120 }
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121 else
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122 {
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123 assert(found->second != NULL);
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124 delete found->second;
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125 found->second = item.release();
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126 }
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127 }
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128
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129
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130 void Scene2D::DeleteLayer(int depth)
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131 {
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132
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133 Content::iterator found = content_.find(depth);
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134
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135 if (found != content_.end())
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136 {
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137 LOG(TRACE) << "DeleteLayer --found-- (" << depth << ")";
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138 assert(found->second != NULL);
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139 delete found->second;
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140 content_.erase(found);
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141 }
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142 }
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143
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144
602
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145 bool Scene2D::HasLayer(int depth) const
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146 {
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147 return (content_.find(depth) != content_.end());
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148 }
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149
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150
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151 ISceneLayer& Scene2D::GetLayer(int depth) const
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152 {
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153 Content::const_iterator found = content_.find(depth);
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154
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155 if (found == content_.end())
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156 {
606
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157 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
602
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158 }
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159 else
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160 {
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161 assert(found->second != NULL);
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162 return found->second->GetLayer();
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163 }
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164 }
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165
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166
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167 int Scene2D::GetMinDepth() const
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168 {
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169 if (content_.size() == 0)
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170 return 0;
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171 else
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172 return content_.begin()->first;
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173 }
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174
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175
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176 int Scene2D::GetMaxDepth() const
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177 {
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178 if (content_.size() == 0)
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179 return 0;
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180 else
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181 return content_.rbegin()->first;
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182 }
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183
606
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184 ISceneLayer* Scene2D::ReleaseLayer(int depth)
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185 {
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186 Content::iterator found = content_.find(depth);
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187
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188 if (found == content_.end())
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189 {
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190 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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191 }
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192 else
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193 {
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194 assert(found->second != NULL);
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195
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196 std::unique_ptr<ISceneLayer> layer(found->second->ReleaseLayer());
606
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197 assert(layer.get() != NULL);
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198
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199 content_.erase(found);
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200
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201 return layer.release();
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202 }
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203 }
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204
600
6129b1e5ba42 BasicScene SDL sample
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205 void Scene2D::Apply(IVisitor& visitor) const
582
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206 {
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207 for (Content::const_iterator it = content_.begin();
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208 it != content_.end(); ++it)
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209 {
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210 assert(it->second != NULL);
1211
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211 visitor.Visit(*this, it->second->GetLayer(), it->second->GetIdentifier(), it->first);
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212 }
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213 }
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214
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215
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216 void Scene2D::SetSceneToCanvasTransform(const AffineTransform2D& transform)
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217 {
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218 // Make sure the transform is invertible before making any change
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219 AffineTransform2D inverse = AffineTransform2D::Invert(transform);
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220
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221 sceneToCanvas_ = transform;
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222 canvasToScene_ = inverse;
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223 }
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224
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diff changeset
225 void Scene2D::GetBoundingBox(Extent2D &target) const
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226 {
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227 target.Reset();
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228
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229 for (Content::const_iterator it = content_.begin();
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diff changeset
230 it != content_.end(); ++it)
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231 {
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diff changeset
232 assert(it->second != NULL);
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233
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diff changeset
234 Extent2D tmp;
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diff changeset
235 if (it->second->GetLayer().GetBoundingBox(tmp))
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diff changeset
236 {
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diff changeset
237 target.Union(tmp);
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238 }
1e4878ed1d77 added GetBoundingBox to Scene2D
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239 }
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240 }
1e4878ed1d77 added GetBoundingBox to Scene2D
Alain Mazy <alain@mazy.be>
parents: 1298
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241
582
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242 void Scene2D::FitContent(unsigned int canvasWidth,
e36e69a380a5 Scene2D
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243 unsigned int canvasHeight)
e36e69a380a5 Scene2D
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244 {
e36e69a380a5 Scene2D
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245 Extent2D extent;
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246
1374
1e4878ed1d77 added GetBoundingBox to Scene2D
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diff changeset
247 GetBoundingBox(extent);
582
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248
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249 if (!extent.IsEmpty())
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250 {
e36e69a380a5 Scene2D
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251 double zoomX = static_cast<double>(canvasWidth) / extent.GetWidth();
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252 double zoomY = static_cast<double>(canvasHeight) / extent.GetHeight();
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253
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254 double zoom = std::min(zoomX, zoomY);
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255 if (LinearAlgebra::IsCloseToZero(zoom))
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256 {
e36e69a380a5 Scene2D
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diff changeset
257 zoom = 1;
e36e69a380a5 Scene2D
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diff changeset
258 }
e36e69a380a5 Scene2D
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259
e36e69a380a5 Scene2D
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parents:
diff changeset
260 double panX = extent.GetCenterX();
e36e69a380a5 Scene2D
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parents:
diff changeset
261 double panY = extent.GetCenterY();
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262
e36e69a380a5 Scene2D
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263 // Bring the center of the scene to (0,0)
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264 AffineTransform2D t1 = AffineTransform2D::CreateOffset(-panX, -panY);
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265
e36e69a380a5 Scene2D
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266 // Scale the scene
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267 AffineTransform2D t2 = AffineTransform2D::CreateScaling(zoom, zoom);
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268
e36e69a380a5 Scene2D
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diff changeset
269 SetSceneToCanvasTransform(AffineTransform2D::Combine(t2, t1));
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270 }
e36e69a380a5 Scene2D
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271 }
e36e69a380a5 Scene2D
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272 }