Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WorldSceneWidget.cpp @ 332:50e5ec1bdd46 am-2
separating ZoomMouseTracker and PanMouseTracker from WorldSceneWidget
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 17 Oct 2018 19:38:39 +0200 |
| parents | 7ccf919faff0 |
| children | 08683537a227 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 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. | |
| 0 | 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 | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
| 281 | 16 * |
| 47 | 17 * You should have received a copy of the GNU Affero General Public License |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "WorldSceneWidget.h" | |
| 23 | |
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24 #include "PanMouseTracker.h" |
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25 #include "ZoomMouseTracker.h" |
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26 |
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27 #include <Core/Logging.h> |
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28 |
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29 #include <math.h> |
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30 #include <memory> |
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31 #include <cassert> |
| 0 | 32 |
| 33 namespace OrthancStone | |
| 34 { | |
| 281 | 35 // this is an adapter between a IWorldSceneMouseTracker |
| 36 // that is tracking a mouse in scene coordinates/mm and | |
| 37 // an IMouseTracker that is tracking a mouse | |
| 38 // in screen coordinates/pixels. | |
| 0 | 39 class WorldSceneWidget::SceneMouseTracker : public IMouseTracker |
| 40 { | |
| 41 private: | |
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42 ViewportGeometry view_; |
| 0 | 43 std::auto_ptr<IWorldSceneMouseTracker> tracker_; |
| 281 | 44 |
| 0 | 45 public: |
| 46 SceneMouseTracker(const ViewportGeometry& view, | |
| 47 IWorldSceneMouseTracker* tracker) : | |
| 48 view_(view), | |
| 49 tracker_(tracker) | |
| 50 { | |
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51 if (tracker == NULL) |
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52 { |
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53 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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54 } |
| 0 | 55 } |
| 56 | |
| 57 virtual void Render(Orthanc::ImageAccessor& target) | |
| 58 { | |
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59 if (tracker_->HasRender()) |
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60 { |
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61 CairoSurface surface(target); |
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62 CairoContext context(surface); |
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63 view_.ApplyTransform(context); |
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64 tracker_->Render(context, view_.GetZoom()); |
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65 } |
| 0 | 66 } |
| 67 | |
| 281 | 68 virtual void MouseUp() |
| 0 | 69 { |
| 70 tracker_->MouseUp(); | |
| 71 } | |
| 72 | |
| 281 | 73 virtual void MouseMove(int x, |
| 0 | 74 int y) |
| 75 { | |
| 76 double sceneX, sceneY; | |
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77 view_.MapPixelCenterToScene(sceneX, sceneY, x, y); |
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78 tracker_->MouseMove(x, y, sceneX, sceneY); |
| 0 | 79 } |
| 80 }; | |
| 81 | |
| 82 | |
| 83 bool WorldSceneWidget::RenderCairo(CairoContext& context) | |
| 84 { | |
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85 view_.ApplyTransform(context); |
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86 return RenderScene(context, view_); |
| 0 | 87 } |
| 88 | |
| 89 | |
| 90 void WorldSceneWidget::RenderMouseOverCairo(CairoContext& context, | |
| 91 int x, | |
| 92 int y) | |
| 93 { | |
| 94 ViewportGeometry view = GetView(); | |
| 95 view.ApplyTransform(context); | |
| 96 | |
| 97 double sceneX, sceneY; | |
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98 view.MapPixelCenterToScene(sceneX, sceneY, x, y); |
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99 |
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100 if (interactor_) |
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101 { |
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102 interactor_->MouseOver(context, *this, view, sceneX, sceneY, GetStatusBar()); |
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103 } |
| 0 | 104 } |
| 105 | |
| 106 | |
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107 void WorldSceneWidget::SetSceneExtent(ViewportGeometry& view) |
| 0 | 108 { |
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109
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109 view.SetSceneExtent(GetSceneExtent()); |
| 0 | 110 } |
| 111 | |
| 112 | |
| 113 void WorldSceneWidget::SetSize(unsigned int width, | |
| 114 unsigned int height) | |
| 115 { | |
| 116 CairoWidget::SetSize(width, height); | |
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117 view_.SetDisplaySize(width, height); |
| 0 | 118 } |
| 119 | |
| 120 | |
| 121 void WorldSceneWidget::SetInteractor(IWorldSceneInteractor& interactor) | |
| 122 { | |
| 123 interactor_ = &interactor; | |
| 124 } | |
| 125 | |
| 126 | |
| 330 | 127 void WorldSceneWidget::FitContent() |
| 0 | 128 { |
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129 SetSceneExtent(view_); |
| 330 | 130 view_.FitContent(); |
| 0 | 131 |
| 278 | 132 NotifyContentChanged(); |
| 0 | 133 } |
| 134 | |
| 135 | |
| 136 void WorldSceneWidget::SetView(const ViewportGeometry& view) | |
| 137 { | |
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138 view_ = view; |
| 0 | 139 |
| 278 | 140 NotifyContentChanged(); |
| 0 | 141 } |
| 142 | |
| 143 | |
| 144 IMouseTracker* WorldSceneWidget::CreateMouseTracker(MouseButton button, | |
| 145 int x, | |
| 146 int y, | |
| 147 KeyboardModifiers modifiers) | |
| 148 { | |
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149 double sceneX, sceneY; |
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150 view_.MapPixelCenterToScene(sceneX, sceneY, x, y); |
| 0 | 151 |
| 281 | 152 // asks the Widget Interactor to provide a mouse tracker |
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153 std::auto_ptr<IWorldSceneMouseTracker> tracker; |
| 0 | 154 |
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155 if (interactor_) |
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156 { |
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157 tracker.reset(interactor_->CreateMouseTracker(*this, view_, button, modifiers, sceneX, sceneY, GetStatusBar())); |
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158 } |
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159 |
| 0 | 160 if (tracker.get() != NULL) |
| 161 { | |
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162 return new SceneMouseTracker(view_, tracker.release()); |
| 0 | 163 } |
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164 |
| 281 | 165 //TODO: allow Interactor to create Pan & Zoom |
| 0 | 166 switch (button) |
| 167 { | |
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168 case MouseButton_Middle: |
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169 return new SceneMouseTracker(view_, new PanMouseTracker(*this, x, y)); |
| 0 | 170 |
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171 case MouseButton_Right: |
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172 return new SceneMouseTracker(view_, new ZoomMouseTracker(*this, x, y)); |
| 0 | 173 |
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174 default: |
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175 return NULL; |
| 0 | 176 } |
| 177 } | |
| 178 | |
| 179 | |
| 180 void WorldSceneWidget::MouseWheel(MouseWheelDirection direction, | |
| 181 int x, | |
| 182 int y, | |
| 281 | 183 KeyboardModifiers modifiers) |
| 0 | 184 { |
| 185 if (interactor_) | |
| 186 { | |
| 187 interactor_->MouseWheel(*this, direction, modifiers, GetStatusBar()); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 | |
| 327 | 192 void WorldSceneWidget::KeyPressed(KeyboardKeys key, |
| 193 char keyChar, | |
| 0 | 194 KeyboardModifiers modifiers) |
| 195 { | |
| 196 if (interactor_) | |
| 197 { | |
| 327 | 198 interactor_->KeyPressed(*this, key, keyChar, modifiers, GetStatusBar()); |
| 0 | 199 } |
| 200 } | |
| 201 } |