Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WorldSceneWidget.cpp @ 110:53025eecbc95 wasm
renamed SliceGeometry as CoordinateSystem3D
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 14 Jun 2017 15:50:38 +0200 |
| parents | 53bd9277b025 |
| children | e2fe9352f240 |
| 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 | |
|
40
7207a407bcd8
shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
|
5 * Copyright (C) 2017 Osimis, 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. | |
| 16 * | |
| 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 | |
|
110
53025eecbc95
renamed SliceGeometry as CoordinateSystem3D
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
109
diff
changeset
|
24 #include <math.h> |
|
53025eecbc95
renamed SliceGeometry as CoordinateSystem3D
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
109
diff
changeset
|
25 #include <memory> |
|
53025eecbc95
renamed SliceGeometry as CoordinateSystem3D
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
109
diff
changeset
|
26 #include <cassert> |
|
53025eecbc95
renamed SliceGeometry as CoordinateSystem3D
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
109
diff
changeset
|
27 |
| 0 | 28 namespace OrthancStone |
| 29 { | |
| 30 static void MapMouseToScene(double& sceneX, | |
| 31 double& sceneY, | |
| 32 const ViewportGeometry& view, | |
| 33 int mouseX, | |
| 34 int mouseY) | |
| 35 { | |
| 36 // Take the center of the pixel | |
| 37 double x, y; | |
| 38 x = static_cast<double>(mouseX) + 0.5; | |
| 39 y = static_cast<double>(mouseY) + 0.5; | |
| 40 | |
| 41 view.MapDisplayToScene(sceneX, sceneY, x, y); | |
| 42 } | |
| 43 | |
| 44 | |
| 45 struct WorldSceneWidget::SizeChangeFunctor | |
| 46 { | |
| 47 ViewportGeometry& view_; | |
| 48 | |
| 49 SizeChangeFunctor(ViewportGeometry& view) : | |
| 50 view_(view) | |
| 51 { | |
| 52 } | |
| 53 | |
| 54 void operator() (IWorldObserver& observer, | |
| 55 const WorldSceneWidget& source) | |
| 56 { | |
| 57 observer.NotifySizeChange(source, view_); | |
| 58 } | |
| 59 }; | |
| 60 | |
| 61 | |
| 62 class WorldSceneWidget::SceneMouseTracker : public IMouseTracker | |
| 63 { | |
| 64 private: | |
| 65 ViewportGeometry view_; | |
| 66 std::auto_ptr<IWorldSceneMouseTracker> tracker_; | |
| 67 | |
| 68 public: | |
| 69 SceneMouseTracker(const ViewportGeometry& view, | |
| 70 IWorldSceneMouseTracker* tracker) : | |
| 71 view_(view), | |
| 72 tracker_(tracker) | |
| 73 { | |
| 74 assert(tracker != NULL); | |
| 75 } | |
| 76 | |
| 77 virtual void Render(Orthanc::ImageAccessor& target) | |
| 78 { | |
| 79 CairoSurface surface(target); | |
| 80 CairoContext context(surface); | |
| 81 view_.ApplyTransform(context); | |
| 82 tracker_->Render(context, view_.GetZoom()); | |
| 83 } | |
| 84 | |
| 85 virtual void MouseUp() | |
| 86 { | |
| 87 tracker_->MouseUp(); | |
| 88 } | |
| 89 | |
| 90 virtual void MouseMove(int x, | |
| 91 int y) | |
| 92 { | |
| 93 double sceneX, sceneY; | |
| 94 MapMouseToScene(sceneX, sceneY, view_, x, y); | |
| 95 tracker_->MouseMove(sceneX, sceneY); | |
| 96 } | |
| 97 }; | |
| 98 | |
| 99 | |
| 100 class WorldSceneWidget::PanMouseTracker : public IMouseTracker | |
| 101 { | |
| 102 private: | |
| 103 WorldSceneWidget& that_; | |
| 104 double previousPanX_; | |
| 105 double previousPanY_; | |
| 106 double downX_; | |
| 107 double downY_; | |
| 108 | |
| 109 public: | |
| 110 PanMouseTracker(WorldSceneWidget& that, | |
| 111 int x, | |
| 112 int y) : | |
| 113 that_(that), | |
| 114 downX_(x), | |
| 115 downY_(y) | |
| 116 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
117 that_.view_.GetPan(previousPanX_, previousPanY_); |
| 0 | 118 } |
| 119 | |
| 120 virtual void Render(Orthanc::ImageAccessor& surface) | |
| 121 { | |
| 122 } | |
| 123 | |
| 124 virtual void MouseUp() | |
| 125 { | |
| 126 } | |
| 127 | |
| 128 virtual void MouseMove(int x, | |
| 129 int y) | |
| 130 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
131 that_.view_.SetPan(previousPanX_ + x - downX_, |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
132 previousPanY_ + y - downY_); |
| 0 | 133 |
| 91 | 134 that_.observers_.Apply(that_, &IWorldObserver::NotifyViewChange, that_.view_); |
| 0 | 135 } |
| 136 }; | |
| 137 | |
| 138 | |
| 139 class WorldSceneWidget::ZoomMouseTracker : public IMouseTracker | |
| 140 { | |
| 141 private: | |
| 142 WorldSceneWidget& that_; | |
| 143 int downX_; | |
| 144 int downY_; | |
| 145 double centerX_; | |
| 146 double centerY_; | |
| 147 double oldZoom_; | |
| 148 | |
| 149 public: | |
| 150 ZoomMouseTracker(WorldSceneWidget& that, | |
| 151 int x, | |
| 152 int y) : | |
| 153 that_(that), | |
| 154 downX_(x), | |
| 155 downY_(y) | |
| 156 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
157 oldZoom_ = that_.view_.GetZoom(); |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
158 MapMouseToScene(centerX_, centerY_, that_.view_, downX_, downY_); |
| 0 | 159 } |
| 160 | |
| 161 virtual void Render(Orthanc::ImageAccessor& surface) | |
| 162 { | |
| 163 } | |
| 164 | |
| 165 virtual void MouseUp() | |
| 166 { | |
| 167 } | |
| 168 | |
| 169 virtual void MouseMove(int x, | |
| 170 int y) | |
| 171 { | |
| 172 static const double MIN_ZOOM = -4; | |
| 173 static const double MAX_ZOOM = 4; | |
| 174 | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
175 if (that_.view_.GetDisplayHeight() <= 3) |
| 0 | 176 { |
| 177 return; // Cannot zoom on such a small image | |
| 178 } | |
| 179 | |
| 180 double dy = (static_cast<double>(y - downY_) / | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
181 static_cast<double>(that_.view_.GetDisplayHeight() - 1)); // In the range [-1,1] |
| 0 | 182 double z; |
| 183 | |
| 184 // Linear interpolation from [-1, 1] to [MIN_ZOOM, MAX_ZOOM] | |
| 185 if (dy < -1.0) | |
| 186 { | |
| 187 z = MIN_ZOOM; | |
| 188 } | |
| 189 else if (dy > 1.0) | |
| 190 { | |
| 191 z = MAX_ZOOM; | |
| 192 } | |
| 193 else | |
| 194 { | |
| 195 z = MIN_ZOOM + (MAX_ZOOM - MIN_ZOOM) * (dy + 1.0) / 2.0; | |
| 196 } | |
| 197 | |
| 198 z = pow(2.0, z); | |
| 199 | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
200 that_.view_.SetZoom(oldZoom_ * z); |
| 0 | 201 |
| 202 // Correct the pan so that the original click point is kept at | |
| 203 // the same location on the display | |
| 204 double panX, panY; | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
205 that_.view_.GetPan(panX, panY); |
| 0 | 206 |
| 207 int tx, ty; | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
208 that_.view_.MapSceneToDisplay(tx, ty, centerX_, centerY_); |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
209 that_.view_.SetPan(panX + static_cast<double>(downX_ - tx), |
| 0 | 210 panY + static_cast<double>(downY_ - ty)); |
| 211 | |
| 91 | 212 that_.observers_.Apply(that_, &IWorldObserver::NotifyViewChange, that_.view_); |
| 0 | 213 } |
| 214 }; | |
| 215 | |
| 216 | |
| 217 bool WorldSceneWidget::RenderCairo(CairoContext& context) | |
| 218 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
219 view_.ApplyTransform(context); |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
220 return RenderScene(context, view_); |
| 0 | 221 } |
| 222 | |
| 223 | |
| 224 void WorldSceneWidget::RenderMouseOverCairo(CairoContext& context, | |
| 225 int x, | |
| 226 int y) | |
| 227 { | |
| 228 ViewportGeometry view = GetView(); | |
| 229 view.ApplyTransform(context); | |
| 230 | |
| 231 double sceneX, sceneY; | |
| 232 MapMouseToScene(sceneX, sceneY, view, x, y); | |
| 233 RenderSceneMouseOver(context, view, sceneX, sceneY); | |
| 234 } | |
| 235 | |
| 236 | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
237 void WorldSceneWidget::SetSceneExtent(ViewportGeometry& view) |
| 0 | 238 { |
|
109
53bd9277b025
using the Extent class
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
91
diff
changeset
|
239 view.SetSceneExtent(GetSceneExtent()); |
| 0 | 240 } |
| 241 | |
| 242 | |
| 243 void WorldSceneWidget::SetSize(unsigned int width, | |
| 244 unsigned int height) | |
| 245 { | |
| 246 CairoWidget::SetSize(width, height); | |
| 247 | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
248 view_.SetDisplaySize(width, height); |
| 0 | 249 |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
250 if (observers_.IsEmpty()) |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
251 { |
| 66 | 252 // Without a size observer, reset to the default view |
| 253 // view_.SetDefaultView(); | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
254 } |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
255 else |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
256 { |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
257 // With a size observer, let it decide which view to use |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
258 SizeChangeFunctor functor(view_); |
| 91 | 259 observers_.Notify(*this, functor); |
| 0 | 260 } |
| 261 } | |
| 262 | |
| 263 | |
| 264 void WorldSceneWidget::SetInteractor(IWorldSceneInteractor& interactor) | |
| 265 { | |
| 266 interactor_ = &interactor; | |
| 267 } | |
| 268 | |
| 269 | |
| 270 void WorldSceneWidget::SetDefaultView() | |
| 271 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
272 SetSceneExtent(view_); |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
273 view_.SetDefaultView(); |
| 0 | 274 |
| 275 NotifyChange(); | |
| 276 | |
| 91 | 277 observers_.Apply(*this, &IWorldObserver::NotifyViewChange, view_); |
| 0 | 278 } |
| 279 | |
| 280 | |
| 281 void WorldSceneWidget::SetView(const ViewportGeometry& view) | |
| 282 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
283 view_ = view; |
| 0 | 284 |
| 285 NotifyChange(); | |
| 286 | |
| 91 | 287 observers_.Apply(*this, &IWorldObserver::NotifyViewChange, view_); |
| 0 | 288 } |
| 289 | |
| 290 | |
| 291 ViewportGeometry WorldSceneWidget::GetView() | |
| 292 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
293 return view_; |
| 0 | 294 } |
| 295 | |
| 296 | |
| 297 IMouseTracker* WorldSceneWidget::CreateMouseTracker(MouseButton button, | |
| 298 int x, | |
| 299 int y, | |
| 300 KeyboardModifiers modifiers) | |
| 301 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
302 double sceneX, sceneY; |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
303 MapMouseToScene(sceneX, sceneY, view_, x, y); |
| 0 | 304 |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
305 std::auto_ptr<IWorldSceneMouseTracker> tracker |
|
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
306 (CreateMouseSceneTracker(view_, button, sceneX, sceneY, modifiers)); |
| 0 | 307 |
| 308 if (tracker.get() != NULL) | |
| 309 { | |
|
53
c2dc924f1a63
removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
48
diff
changeset
|
310 return new SceneMouseTracker(view_, tracker.release()); |
| 0 | 311 } |
| 312 | |
| 313 switch (button) | |
| 314 { | |
| 315 case MouseButton_Middle: | |
| 316 return new PanMouseTracker(*this, x, y); | |
| 317 | |
| 318 case MouseButton_Right: | |
| 319 return new ZoomMouseTracker(*this, x, y); | |
| 320 | |
| 321 default: | |
| 322 return NULL; | |
| 323 } | |
| 324 } | |
| 325 | |
| 326 | |
| 327 void WorldSceneWidget::RenderSceneMouseOver(CairoContext& context, | |
| 328 const ViewportGeometry& view, | |
| 329 double x, | |
| 330 double y) | |
| 331 { | |
| 332 if (interactor_) | |
| 333 { | |
| 59 | 334 interactor_->MouseOver(context, *this, view, x, y, GetStatusBar()); |
| 0 | 335 } |
| 336 } | |
| 337 | |
| 338 IWorldSceneMouseTracker* WorldSceneWidget::CreateMouseSceneTracker(const ViewportGeometry& view, | |
| 339 MouseButton button, | |
| 340 double x, | |
| 341 double y, | |
| 342 KeyboardModifiers modifiers) | |
| 343 { | |
| 344 if (interactor_) | |
| 345 { | |
| 59 | 346 return interactor_->CreateMouseTracker(*this, view, button, x, y, GetStatusBar()); |
| 0 | 347 } |
| 348 else | |
| 349 { | |
| 350 return NULL; | |
| 351 } | |
| 352 } | |
| 353 | |
| 354 | |
| 355 void WorldSceneWidget::MouseWheel(MouseWheelDirection direction, | |
| 356 int x, | |
| 357 int y, | |
| 358 KeyboardModifiers modifiers) | |
| 359 { | |
| 360 if (interactor_) | |
| 361 { | |
| 362 interactor_->MouseWheel(*this, direction, modifiers, GetStatusBar()); | |
| 363 } | |
| 364 } | |
| 365 | |
| 366 | |
| 367 void WorldSceneWidget::KeyPressed(char key, | |
| 368 KeyboardModifiers modifiers) | |
| 369 { | |
| 370 if (interactor_) | |
| 371 { | |
| 372 interactor_->KeyPressed(*this, key, modifiers, GetStatusBar()); | |
| 373 } | |
| 374 } | |
| 375 } |