Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/LayerHolder.h @ 879:12b591d5d63c am-dev

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some Qt integration (wip)
author Alain Mazy <alain@mazy.be>
date Fri, 05 Jul 2019 14:52:43 +0200
parents e42b491f1fb2
children 0aff28f15ea2
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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 #pragma once
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22
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23 #include "PredeclaredTypes.h"
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24
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25 #include "boost/noncopyable.hpp"
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26 #include "boost/weak_ptr.hpp"
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27 #include "boost/shared_ptr.hpp"
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28
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29 namespace OrthancStone
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30 {
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31 class PolylineSceneLayer;
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32 class TextSceneLayer;
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33
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34 /**
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35 This class holds the indices of a set a layer and supplies
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36 getters to the concrete layer objects. Sounds very ad hoc, and it is.
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37 */
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38 class LayerHolder : public boost::noncopyable
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39 {
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40 public:
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41 /**
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42 This ctor merely stores the scene and layer counts. No layer creation
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43 performed at this time
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44 */
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45 LayerHolder(
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46 boost::weak_ptr<ViewportController> controllerW,
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47 int polylineLayerCount, int textLayerCount);
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48
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49 /**
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50 This actually creates the layers
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51 */
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52 void CreateLayers();
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53
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54 /**
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55 This creates the layers if they are not created yet. Can be useful in
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56 some scenarios
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57 */
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58 void CreateLayersIfNeeded();
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59
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60 /**
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61 Whether the various text and polylines layers have all been created or
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62 none at all
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63 */
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64 bool AreLayersCreated() const;
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65
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66 /**
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67 This removes the layers from the scene
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68 */
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69 void DeleteLayers();
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70
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71 /**
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72 Please note that the returned pointer belongs to the scene.Don't you dare
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73 storing or deleting it, you fool!
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74
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75 This throws if the index is not valid or if the layers are not created or
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76 have been deleted
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77 */
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78 PolylineSceneLayer* GetPolylineLayer(int index = 0);
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79
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80 /**
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81 Please note that the returned pointer belongs to the scene. Don't you dare
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82 storing or deleting it, you fool!
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83
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84 This throws if the index is not valid or if the layers are not created or
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85 have been deleted
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86 */
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87 TextSceneLayer* GetTextLayer(int index = 0);
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88
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89 private:
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90 int GetPolylineLayerIndex(int index = 0);
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91 int GetTextLayerIndex(int index = 0);
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92 boost::shared_ptr<Scene2D> GetScene();
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94 int textLayerCount_;
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95 int polylineLayerCount_;
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96 boost::weak_ptr<ViewportController> controllerW_;
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97 int baseLayerIndex_;
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98 };
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99 }
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100