Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2DViewport/MeasureTool.h @ 1572:1b3039384972
cppcheck
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 21 Sep 2020 18:13:52 +0200 |
parents | 85e117739eca |
children | 92fca2b3ba3d |
rev | line source |
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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 #pragma once |
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22 |
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23 #include "../Messages/ObserverBase.h" |
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24 #include "../Scene2D/PolylineSceneLayer.h" |
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25 #include "../Scene2D/Scene2D.h" |
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26 #include "../Scene2D/ScenePoint2D.h" |
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27 #include "../Scene2D/TextSceneLayer.h" |
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28 #include "../Scene2DViewport/PredeclaredTypes.h" |
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29 #include "../Scene2DViewport/ViewportController.h" |
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30 |
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31 #include <boost/weak_ptr.hpp> |
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32 |
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33 #include <vector> |
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34 #include <cmath> |
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35 |
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36 namespace OrthancStone |
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37 { |
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38 class IFlexiblePointerTracker; |
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39 class MeasureToolMemento; |
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40 |
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41 class MeasureTool : public ObserverBase<MeasureTool> |
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42 { |
1571 | 43 private: |
44 bool enabled_; | |
45 | |
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46 public: |
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47 virtual ~MeasureTool() |
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48 { |
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49 } |
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50 |
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51 /** |
1571 | 52 Enabled tools are rendered in the scene. |
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53 */ |
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54 void Enable(); |
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55 |
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56 /** |
1571 | 57 Disabled tools are not rendered in the scene. This is useful to be able |
58 to use them as their own memento in command stacks (when a measure tool | |
59 creation command has been undone, the measure remains alive in the | |
60 command object but is disabled so that it can be redone later on easily) | |
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61 */ |
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62 void Disable(); |
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63 |
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64 /** |
1571 | 65 This method is called when the scene transform changes. It allows to |
66 recompute the visual elements whose content depend upon the scene transform | |
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67 */ |
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68 void OnSceneTransformChanged( |
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69 const ViewportController::SceneTransformChanged& message); |
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70 |
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71 /** |
1571 | 72 This function must be implemented by the measuring tool to return whether |
73 a given point in scene coords is close to the measuring tool. | |
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74 |
1571 | 75 This is used for mouse hover highlighting. |
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76 |
1571 | 77 It is assumed that if the pointer position leads to this function returning |
78 true, then a click at that position will return a tracker to edit the | |
79 measuring tool | |
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80 */ |
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81 virtual bool HitTest(ScenePoint2D p) = 0; |
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82 |
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83 /** |
1571 | 84 This method must return a memento the captures the tool state (not including |
85 the highlighting state | |
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86 */ |
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87 virtual boost::shared_ptr<MeasureToolMemento> GetMemento() const = 0; |
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88 |
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89 /** |
1571 | 90 This method must apply the supplied memento (this requires RTTI to check |
91 the type) | |
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92 */ |
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93 virtual void SetMemento(boost::shared_ptr<MeasureToolMemento>) = 0; |
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94 |
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95 /** |
1571 | 96 This must create an edition tracker suitable for the supplied click position, |
97 or an empty pointer if no hit test (although this should have been checked | |
98 first) | |
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99 */ |
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100 virtual boost::shared_ptr<IFlexiblePointerTracker> CreateEditionTracker(const PointerEvent& e) = 0; |
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101 |
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102 /** |
1571 | 103 Will change the measuring tool to provide visual feedback on the GUI |
104 element that is in the pointer hit zone | |
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105 */ |
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106 virtual void Highlight(ScenePoint2D p) = 0; |
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107 |
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108 /** |
1571 | 109 This function must reset the visual highlighted hot zone feedback |
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110 */ |
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111 virtual void ResetHighlightState() = 0; |
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112 |
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113 /** |
1571 | 114 A description of the measuring tool, useful in debug logs |
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115 */ |
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116 virtual std::string GetDescription() = 0; |
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117 |
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118 protected: |
1571 | 119 explicit MeasureTool(boost::shared_ptr<IViewport> viewport); |
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120 |
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121 void PostConstructor(); |
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122 |
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123 /** |
1571 | 124 The measuring tool may exist in a standalone fashion, without any available |
125 scene (because the controller is dead or dying). This call allows to check | |
126 before accessing the scene. | |
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127 */ |
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128 bool IsSceneAlive() const; |
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129 |
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130 /** |
1571 | 131 This is the meat of the tool: this method must [create (if needed) and] |
132 update the layers and their data according to the measure tool kind and | |
133 current state. This is repeatedly called during user interaction | |
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134 */ |
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135 virtual void RefreshScene() = 0; |
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136 |
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137 /** |
1571 | 138 enabled_ is not accessible by subclasses because there is a state machine |
139 that we do not wanna mess with | |
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140 */ |
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141 bool IsEnabled() const; |
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142 |
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143 /** |
1571 | 144 Protected to allow sub-classes to use this weak pointer in factory methods |
145 (pass them to created objects) | |
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146 */ |
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147 boost::shared_ptr<IViewport> viewport_; |
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148 }; |
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Benjamin Golinvaux <bgo@osimis.io>
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149 |
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Benjamin Golinvaux <bgo@osimis.io>
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150 class MeasureToolMemento |
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151 { |
1571 | 152 public: |
153 virtual ~MeasureToolMemento() | |
154 { | |
155 } | |
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parents:
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156 }; |
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Added the ability to edit existing measuring tools (demo not updated yet)
Benjamin Golinvaux <bgo@osimis.io>
parents:
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157 |
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158 } |
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159 |
1571 | 160 //extern void TrackerSample_SetInfoDisplayMessage( |
161 // std::string key, std::string value); |