Mercurial > hg > orthanc-stone
annotate Framework/Scene2D/Scene2D.cpp @ 631:ea8322566596
notes
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 08 May 2019 18:26:52 +0200 |
parents | d9c0a66304cb |
children | 500c3f70b6c2 |
rev | line source |
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582 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "Scene2D.h" | |
23 | |
24 #include <Core/OrthancException.h> | |
25 | |
26 | |
27 namespace OrthancStone | |
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 } |
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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 |
582 | 78 Scene2D::Scene2D(const Scene2D& other) : |
79 sceneToCanvas_(other.sceneToCanvas_), | |
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80 canvasToScene_(other.canvasToScene_), |
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81 layerCounter_(0) |
582 | 82 { |
83 for (Content::const_iterator it = other.content_.begin(); | |
84 it != other.content_.end(); ++it) | |
85 { | |
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86 content_[it->first] = new Item(it->second->GetLayer().Clone(), layerCounter_++); |
582 | 87 } |
88 } | |
89 | |
90 | |
91 Scene2D::~Scene2D() | |
92 { | |
93 for (Content::iterator it = content_.begin(); | |
94 it != content_.end(); ++it) | |
95 { | |
96 assert(it->second != NULL); | |
97 delete it->second; | |
98 } | |
99 } | |
100 | |
101 | |
102 void Scene2D::SetLayer(int depth, | |
103 ISceneLayer* layer) // Takes ownership | |
104 { | |
602
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105 std::auto_ptr<Item> item(new Item(layer, layerCounter_++)); |
582 | 106 |
107 if (layer == NULL) | |
108 { | |
109 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
110 } | |
111 | |
112 Content::iterator found = content_.find(depth); | |
113 | |
114 if (found == content_.end()) | |
115 { | |
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116 content_[depth] = item.release(); |
582 | 117 } |
118 else | |
119 { | |
120 assert(found->second != NULL); | |
121 delete found->second; | |
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122 found->second = item.release(); |
582 | 123 } |
124 } | |
125 | |
126 | |
127 void Scene2D::DeleteLayer(int depth) | |
128 { | |
129 Content::iterator found = content_.find(depth); | |
130 | |
131 if (found != content_.end()) | |
132 { | |
133 assert(found->second != NULL); | |
134 delete found->second; | |
135 content_.erase(found); | |
136 } | |
137 } | |
138 | |
139 | |
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140 bool Scene2D::HasLayer(int depth) const |
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141 { |
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142 return (content_.find(depth) != content_.end()); |
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143 } |
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144 |
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145 |
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146 ISceneLayer& Scene2D::GetLayer(int depth) const |
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147 { |
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148 Content::const_iterator found = content_.find(depth); |
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149 |
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150 if (found == content_.end()) |
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151 { |
606
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152 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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153 } |
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154 else |
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155 { |
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156 assert(found->second != NULL); |
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157 return found->second->GetLayer(); |
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158 } |
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159 } |
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160 |
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161 |
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162 ISceneLayer* Scene2D::ReleaseLayer(int depth) |
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163 { |
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164 Content::iterator found = content_.find(depth); |
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165 |
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166 if (found == content_.end()) |
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167 { |
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168 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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169 } |
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170 else |
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171 { |
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172 assert(found->second != NULL); |
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173 |
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174 std::auto_ptr<ISceneLayer> layer(found->second->ReleaseLayer()); |
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175 assert(layer.get() != NULL); |
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176 |
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177 content_.erase(found); |
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178 |
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179 return layer.release(); |
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180 } |
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181 } |
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182 |
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183 |
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184 void Scene2D::Apply(IVisitor& visitor) const |
582 | 185 { |
186 for (Content::const_iterator it = content_.begin(); | |
187 it != content_.end(); ++it) | |
188 { | |
189 assert(it->second != NULL); | |
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190 visitor.Visit(it->second->GetLayer(), it->second->GetIdentifier(), it->first); |
582 | 191 } |
192 } | |
193 | |
194 | |
195 void Scene2D::SetSceneToCanvasTransform(const AffineTransform2D& transform) | |
196 { | |
197 // Make sure the transform is invertible before making any change | |
198 AffineTransform2D inverse = AffineTransform2D::Invert(transform); | |
199 | |
200 sceneToCanvas_ = transform; | |
201 canvasToScene_ = inverse; | |
202 } | |
203 | |
204 | |
205 void Scene2D::FitContent(unsigned int canvasWidth, | |
206 unsigned int canvasHeight) | |
207 { | |
208 Extent2D extent; | |
209 | |
210 for (Content::const_iterator it = content_.begin(); | |
211 it != content_.end(); ++it) | |
212 { | |
213 assert(it->second != NULL); | |
214 | |
215 Extent2D tmp; | |
602
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display scene positions in the basic sample
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
600
diff
changeset
|
216 if (it->second->GetLayer().GetBoundingBox(tmp)) |
582 | 217 { |
218 extent.Union(tmp); | |
219 } | |
220 } | |
221 | |
222 if (!extent.IsEmpty()) | |
223 { | |
224 double zoomX = static_cast<double>(canvasWidth) / extent.GetWidth(); | |
225 double zoomY = static_cast<double>(canvasHeight) / extent.GetHeight(); | |
226 | |
227 double zoom = std::min(zoomX, zoomY); | |
228 if (LinearAlgebra::IsCloseToZero(zoom)) | |
229 { | |
230 zoom = 1; | |
231 } | |
232 | |
233 double panX = extent.GetCenterX(); | |
234 double panY = extent.GetCenterY(); | |
235 | |
236 // Bring the center of the scene to (0,0) | |
237 AffineTransform2D t1 = AffineTransform2D::CreateOffset(-panX, -panY); | |
238 | |
239 // Scale the scene | |
240 AffineTransform2D t2 = AffineTransform2D::CreateScaling(zoom, zoom); | |
241 | |
242 SetSceneToCanvasTransform(AffineTransform2D::Combine(t2, t1)); | |
243 } | |
244 } | |
245 } |