Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayoutWidget.cpp @ 53:c2dc924f1a63 wasm
removing threading out of the framework
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 27 Apr 2017 16:57:49 +0200 |
parents | 25befef48c35 |
children | 01aa453d4d5b |
rev | line source |
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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 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 "LayoutWidget.h" | |
23 | |
16 | 24 #include "../../Resources/Orthanc/Core/Logging.h" |
25 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
0 | 26 |
27 #include <boost/math/special_functions/round.hpp> | |
28 | |
29 namespace OrthancStone | |
30 { | |
31 class LayoutWidget::LayoutMouseTracker : public IMouseTracker | |
32 { | |
33 private: | |
34 std::auto_ptr<IMouseTracker> tracker_; | |
35 int left_; | |
36 int top_; | |
37 unsigned int width_; | |
38 unsigned int height_; | |
39 | |
40 public: | |
41 LayoutMouseTracker(IMouseTracker* tracker, | |
42 int left, | |
43 int top, | |
44 unsigned int width, | |
45 unsigned int height) : | |
46 tracker_(tracker), | |
47 left_(left), | |
48 top_(top), | |
49 width_(width), | |
50 height_(height) | |
51 { | |
52 if (tracker == NULL) | |
53 { | |
54 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
55 } | |
56 } | |
57 | |
58 virtual void Render(Orthanc::ImageAccessor& surface) | |
59 { | |
60 Orthanc::ImageAccessor accessor = surface.GetRegion(left_, top_, width_, height_); | |
61 tracker_->Render(accessor); | |
62 } | |
63 | |
64 virtual void MouseUp() | |
65 { | |
66 tracker_->MouseUp(); | |
67 } | |
68 | |
69 virtual void MouseMove(int x, | |
70 int y) | |
71 { | |
72 tracker_->MouseMove(x - left_, y - top_); | |
73 } | |
74 }; | |
75 | |
76 | |
77 class LayoutWidget::ChildWidget : public boost::noncopyable | |
78 { | |
79 private: | |
80 std::auto_ptr<IWidget> widget_; | |
81 int left_; | |
82 int top_; | |
83 unsigned int width_; | |
84 unsigned int height_; | |
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85 bool hasUpdate_; |
0 | 86 |
87 public: | |
88 ChildWidget(IWidget* widget) : | |
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89 widget_(widget), |
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90 hasUpdate_(widget->HasUpdateContent()) |
0 | 91 { |
92 assert(widget != NULL); | |
93 SetEmpty(); | |
94 } | |
95 | |
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96 void UpdateContent() |
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97 { |
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98 if (hasUpdate_) |
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99 { |
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100 widget_->UpdateContent(); |
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101 } |
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102 } |
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103 |
0 | 104 IWidget& GetWidget() const |
105 { | |
106 return *widget_; | |
107 } | |
108 | |
109 void SetRectangle(unsigned int left, | |
110 unsigned int top, | |
111 unsigned int width, | |
112 unsigned int height) | |
113 { | |
114 left_ = left; | |
115 top_ = top; | |
116 width_ = width; | |
117 height_ = height; | |
118 | |
119 widget_->SetSize(width, height); | |
120 } | |
121 | |
122 void SetEmpty() | |
123 { | |
124 SetRectangle(0, 0, 0, 0); | |
125 } | |
126 | |
127 bool Contains(int x, | |
128 int y) const | |
129 { | |
130 return (x >= left_ && | |
131 y >= top_ && | |
132 x < left_ + static_cast<int>(width_) && | |
133 y < top_ + static_cast<int>(height_)); | |
134 } | |
135 | |
136 bool Render(Orthanc::ImageAccessor& target) | |
137 { | |
138 if (width_ == 0 || | |
139 height_ == 0) | |
140 { | |
141 return true; | |
142 } | |
143 else | |
144 { | |
145 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
146 return widget_->Render(accessor); | |
147 } | |
148 } | |
149 | |
150 IMouseTracker* CreateMouseTracker(MouseButton button, | |
151 int x, | |
152 int y, | |
153 KeyboardModifiers modifiers) | |
154 { | |
155 if (Contains(x, y)) | |
156 { | |
157 IMouseTracker* tracker = widget_->CreateMouseTracker(button, | |
158 x - left_, | |
159 y - top_, | |
160 modifiers); | |
161 if (tracker) | |
162 { | |
163 return new LayoutMouseTracker(tracker, left_, top_, width_, height_); | |
164 } | |
165 } | |
166 | |
167 return NULL; | |
168 } | |
169 | |
170 void RenderMouseOver(Orthanc::ImageAccessor& target, | |
171 int x, | |
172 int y) | |
173 { | |
174 if (Contains(x, y)) | |
175 { | |
176 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
177 | |
178 widget_->RenderMouseOver(accessor, x - left_, y - top_); | |
179 } | |
180 } | |
181 | |
182 void MouseWheel(MouseWheelDirection direction, | |
183 int x, | |
184 int y, | |
185 KeyboardModifiers modifiers) | |
186 { | |
187 if (Contains(x, y)) | |
188 { | |
189 widget_->MouseWheel(direction, x - left_, y - top_, modifiers); | |
190 } | |
191 } | |
192 }; | |
193 | |
194 | |
195 void LayoutWidget::ComputeChildrenExtents() | |
196 { | |
197 if (children_.size() == 0) | |
198 { | |
199 return; | |
200 } | |
201 | |
202 float internal = static_cast<float>(paddingInternal_); | |
203 | |
204 if (width_ <= paddingLeft_ + paddingRight_ || | |
205 height_ <= paddingTop_ + paddingBottom_) | |
206 { | |
207 for (size_t i = 0; i < children_.size(); i++) | |
208 { | |
209 children_[i]->SetEmpty(); | |
210 } | |
211 } | |
212 else if (isHorizontal_) | |
213 { | |
214 unsigned int padding = paddingLeft_ + paddingRight_ + (children_.size() - 1) * paddingInternal_; | |
215 float childWidth = ((static_cast<float>(width_) - static_cast<float>(padding)) / | |
216 static_cast<float>(children_.size())); | |
217 | |
218 for (size_t i = 0; i < children_.size(); i++) | |
219 { | |
220 float left = static_cast<float>(paddingLeft_) + static_cast<float>(i) * (childWidth + internal); | |
221 float right = left + childWidth; | |
222 | |
223 if (left >= right) | |
224 { | |
225 children_[i]->SetEmpty(); | |
226 } | |
227 else | |
228 { | |
229 children_[i]->SetRectangle(static_cast<unsigned int>(left), | |
230 paddingTop_, | |
231 boost::math::iround(right - left), | |
232 height_ - paddingTop_ - paddingBottom_); | |
233 } | |
234 } | |
235 } | |
236 else | |
237 { | |
238 unsigned int padding = paddingTop_ + paddingBottom_ + (children_.size() - 1) * paddingInternal_; | |
239 float childHeight = ((static_cast<float>(height_) - static_cast<float>(padding)) / | |
240 static_cast<float>(children_.size())); | |
241 | |
242 for (size_t i = 0; i < children_.size(); i++) | |
243 { | |
244 float top = static_cast<float>(paddingTop_) + static_cast<float>(i) * (childHeight + internal); | |
245 float bottom = top + childHeight; | |
246 | |
247 if (top >= bottom) | |
248 { | |
249 children_[i]->SetEmpty(); | |
250 } | |
251 else | |
252 { | |
253 children_[i]->SetRectangle(paddingTop_, | |
254 static_cast<unsigned int>(top), | |
255 width_ - paddingLeft_ - paddingRight_, | |
256 boost::math::iround(bottom - top)); | |
257 } | |
258 } | |
259 } | |
260 | |
261 NotifyChange(*this); | |
262 } | |
263 | |
264 | |
265 LayoutWidget::LayoutWidget() : | |
266 isHorizontal_(true), | |
267 started_(false), | |
268 width_(0), | |
269 height_(0), | |
270 paddingLeft_(0), | |
271 paddingTop_(0), | |
272 paddingRight_(0), | |
273 paddingBottom_(0), | |
274 paddingInternal_(0) | |
275 { | |
276 } | |
277 | |
278 | |
279 LayoutWidget::~LayoutWidget() | |
280 { | |
281 for (size_t i = 0; i < children_.size(); i++) | |
282 { | |
283 children_[i]->GetWidget().Unregister(*this); | |
284 delete children_[i]; | |
285 } | |
286 } | |
287 | |
288 | |
289 void LayoutWidget::NotifyChange(const IWidget& widget) | |
290 { | |
291 // One of the children has changed | |
292 WidgetBase::NotifyChange(); | |
293 } | |
294 | |
295 | |
296 void LayoutWidget::SetHorizontal() | |
297 { | |
298 isHorizontal_ = true; | |
299 ComputeChildrenExtents(); | |
300 } | |
301 | |
302 | |
303 void LayoutWidget::SetVertical() | |
304 { | |
305 isHorizontal_ = false; | |
306 ComputeChildrenExtents(); | |
307 } | |
308 | |
309 | |
310 void LayoutWidget::SetPadding(unsigned int left, | |
311 unsigned int top, | |
312 unsigned int right, | |
313 unsigned int bottom, | |
314 unsigned int spacing) | |
315 { | |
316 paddingLeft_ = left; | |
317 paddingTop_ = top; | |
318 paddingRight_ = right; | |
319 paddingBottom_ = bottom; | |
320 paddingInternal_ = spacing; | |
321 } | |
322 | |
323 | |
324 void LayoutWidget::SetPadding(unsigned int padding) | |
325 { | |
326 paddingLeft_ = padding; | |
327 paddingTop_ = padding; | |
328 paddingRight_ = padding; | |
329 paddingBottom_ = padding; | |
330 paddingInternal_ = padding; | |
331 } | |
332 | |
333 | |
334 IWidget& LayoutWidget::AddWidget(IWidget* widget) // Takes ownership | |
335 { | |
336 if (started_) | |
337 { | |
338 LOG(ERROR) << "Cannot add child once Start() has been invoked"; | |
339 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
340 } | |
341 | |
342 if (widget == NULL) | |
343 { | |
344 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
345 } | |
346 | |
347 if (GetStatusBar() != NULL) | |
348 { | |
349 widget->SetStatusBar(*GetStatusBar()); | |
350 } | |
351 else | |
352 { | |
353 widget->ResetStatusBar(); | |
354 } | |
355 | |
356 children_.push_back(new ChildWidget(widget)); | |
357 widget->Register(*this); | |
358 | |
359 ComputeChildrenExtents(); | |
360 | |
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361 if (widget->HasUpdateContent()) |
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362 { |
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363 hasUpdateContent_ = true; |
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364 } |
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365 |
0 | 366 return *widget; |
367 } | |
368 | |
369 | |
370 void LayoutWidget::SetStatusBar(IStatusBar& statusBar) | |
371 { | |
372 WidgetBase::SetStatusBar(statusBar); | |
373 | |
374 for (size_t i = 0; i < children_.size(); i++) | |
375 { | |
376 children_[i]->GetWidget().SetStatusBar(statusBar); | |
377 } | |
378 } | |
379 | |
380 | |
381 void LayoutWidget::ResetStatusBar() | |
382 { | |
383 WidgetBase::ResetStatusBar(); | |
384 | |
385 for (size_t i = 0; i < children_.size(); i++) | |
386 { | |
387 children_[i]->GetWidget().ResetStatusBar(); | |
388 } | |
389 } | |
390 | |
391 | |
392 void LayoutWidget::Start() | |
393 { | |
394 for (size_t i = 0; i < children_.size(); i++) | |
395 { | |
396 children_[i]->GetWidget().Start(); | |
397 } | |
398 | |
399 WidgetBase::Start(); | |
400 } | |
401 | |
402 | |
403 void LayoutWidget::Stop() | |
404 { | |
405 WidgetBase::Stop(); | |
406 | |
407 for (size_t i = 0; i < children_.size(); i++) | |
408 { | |
409 children_[i]->GetWidget().Stop(); | |
410 } | |
411 } | |
412 | |
413 | |
414 void LayoutWidget::SetSize(unsigned int width, | |
415 unsigned int height) | |
416 { | |
417 width_ = width; | |
418 height_ = height; | |
419 ComputeChildrenExtents(); | |
420 } | |
421 | |
422 | |
423 bool LayoutWidget::Render(Orthanc::ImageAccessor& surface) | |
424 { | |
425 if (!WidgetBase::Render(surface)) | |
426 { | |
427 return false; | |
428 } | |
429 | |
430 for (size_t i = 0; i < children_.size(); i++) | |
431 { | |
432 if (!children_[i]->Render(surface)) | |
433 { | |
434 return false; | |
435 } | |
436 } | |
437 | |
438 return true; | |
439 } | |
440 | |
441 | |
442 IMouseTracker* LayoutWidget::CreateMouseTracker(MouseButton button, | |
443 int x, | |
444 int y, | |
445 KeyboardModifiers modifiers) | |
446 { | |
447 for (size_t i = 0; i < children_.size(); i++) | |
448 { | |
449 IMouseTracker* tracker = children_[i]->CreateMouseTracker(button, x, y, modifiers); | |
450 if (tracker != NULL) | |
451 { | |
452 return tracker; | |
453 } | |
454 } | |
455 | |
456 return NULL; | |
457 } | |
458 | |
459 | |
460 void LayoutWidget::RenderMouseOver(Orthanc::ImageAccessor& target, | |
461 int x, | |
462 int y) | |
463 { | |
464 for (size_t i = 0; i < children_.size(); i++) | |
465 { | |
466 children_[i]->RenderMouseOver(target, x, y); | |
467 } | |
468 } | |
469 | |
470 | |
471 void LayoutWidget::MouseWheel(MouseWheelDirection direction, | |
472 int x, | |
473 int y, | |
474 KeyboardModifiers modifiers) | |
475 { | |
476 for (size_t i = 0; i < children_.size(); i++) | |
477 { | |
478 children_[i]->MouseWheel(direction, x, y, modifiers); | |
479 } | |
480 } | |
481 | |
482 | |
483 void LayoutWidget::KeyPressed(char key, | |
484 KeyboardModifiers modifiers) | |
485 { | |
486 for (size_t i = 0; i < children_.size(); i++) | |
487 { | |
488 children_[i]->GetWidget().KeyPressed(key, modifiers); | |
489 } | |
490 } | |
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491 |
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492 |
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493 void LayoutWidget::UpdateContent() |
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494 { |
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495 if (hasUpdateContent_) |
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496 { |
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497 for (size_t i = 0; i < children_.size(); i++) |
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498 { |
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499 children_[i]->UpdateContent(); |
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500 } |
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501 } |
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502 else |
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503 { |
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504 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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505 } |
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506 } |
0 | 507 } |