Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayoutWidget.cpp @ 47:28956ed68280
agpl license
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 27 Apr 2017 11:00:15 +0200 |
parents | 7207a407bcd8 |
children | 25befef48c35 4cff7b1ed31d |
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 | |
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 "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_; | |
85 | |
86 public: | |
87 ChildWidget(IWidget* widget) : | |
88 widget_(widget) | |
89 { | |
90 assert(widget != NULL); | |
91 SetEmpty(); | |
92 } | |
93 | |
94 IWidget& GetWidget() const | |
95 { | |
96 return *widget_; | |
97 } | |
98 | |
99 void SetRectangle(unsigned int left, | |
100 unsigned int top, | |
101 unsigned int width, | |
102 unsigned int height) | |
103 { | |
104 left_ = left; | |
105 top_ = top; | |
106 width_ = width; | |
107 height_ = height; | |
108 | |
109 widget_->SetSize(width, height); | |
110 } | |
111 | |
112 void SetEmpty() | |
113 { | |
114 SetRectangle(0, 0, 0, 0); | |
115 } | |
116 | |
117 bool Contains(int x, | |
118 int y) const | |
119 { | |
120 return (x >= left_ && | |
121 y >= top_ && | |
122 x < left_ + static_cast<int>(width_) && | |
123 y < top_ + static_cast<int>(height_)); | |
124 } | |
125 | |
126 bool Render(Orthanc::ImageAccessor& target) | |
127 { | |
128 if (width_ == 0 || | |
129 height_ == 0) | |
130 { | |
131 return true; | |
132 } | |
133 else | |
134 { | |
135 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
136 return widget_->Render(accessor); | |
137 } | |
138 } | |
139 | |
140 IMouseTracker* CreateMouseTracker(MouseButton button, | |
141 int x, | |
142 int y, | |
143 KeyboardModifiers modifiers) | |
144 { | |
145 if (Contains(x, y)) | |
146 { | |
147 IMouseTracker* tracker = widget_->CreateMouseTracker(button, | |
148 x - left_, | |
149 y - top_, | |
150 modifiers); | |
151 if (tracker) | |
152 { | |
153 return new LayoutMouseTracker(tracker, left_, top_, width_, height_); | |
154 } | |
155 } | |
156 | |
157 return NULL; | |
158 } | |
159 | |
160 void RenderMouseOver(Orthanc::ImageAccessor& target, | |
161 int x, | |
162 int y) | |
163 { | |
164 if (Contains(x, y)) | |
165 { | |
166 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
167 | |
168 widget_->RenderMouseOver(accessor, x - left_, y - top_); | |
169 } | |
170 } | |
171 | |
172 void MouseWheel(MouseWheelDirection direction, | |
173 int x, | |
174 int y, | |
175 KeyboardModifiers modifiers) | |
176 { | |
177 if (Contains(x, y)) | |
178 { | |
179 widget_->MouseWheel(direction, x - left_, y - top_, modifiers); | |
180 } | |
181 } | |
182 }; | |
183 | |
184 | |
185 void LayoutWidget::ComputeChildrenExtents() | |
186 { | |
187 if (children_.size() == 0) | |
188 { | |
189 return; | |
190 } | |
191 | |
192 float internal = static_cast<float>(paddingInternal_); | |
193 | |
194 if (width_ <= paddingLeft_ + paddingRight_ || | |
195 height_ <= paddingTop_ + paddingBottom_) | |
196 { | |
197 for (size_t i = 0; i < children_.size(); i++) | |
198 { | |
199 children_[i]->SetEmpty(); | |
200 } | |
201 } | |
202 else if (isHorizontal_) | |
203 { | |
204 unsigned int padding = paddingLeft_ + paddingRight_ + (children_.size() - 1) * paddingInternal_; | |
205 float childWidth = ((static_cast<float>(width_) - static_cast<float>(padding)) / | |
206 static_cast<float>(children_.size())); | |
207 | |
208 for (size_t i = 0; i < children_.size(); i++) | |
209 { | |
210 float left = static_cast<float>(paddingLeft_) + static_cast<float>(i) * (childWidth + internal); | |
211 float right = left + childWidth; | |
212 | |
213 if (left >= right) | |
214 { | |
215 children_[i]->SetEmpty(); | |
216 } | |
217 else | |
218 { | |
219 children_[i]->SetRectangle(static_cast<unsigned int>(left), | |
220 paddingTop_, | |
221 boost::math::iround(right - left), | |
222 height_ - paddingTop_ - paddingBottom_); | |
223 } | |
224 } | |
225 } | |
226 else | |
227 { | |
228 unsigned int padding = paddingTop_ + paddingBottom_ + (children_.size() - 1) * paddingInternal_; | |
229 float childHeight = ((static_cast<float>(height_) - static_cast<float>(padding)) / | |
230 static_cast<float>(children_.size())); | |
231 | |
232 for (size_t i = 0; i < children_.size(); i++) | |
233 { | |
234 float top = static_cast<float>(paddingTop_) + static_cast<float>(i) * (childHeight + internal); | |
235 float bottom = top + childHeight; | |
236 | |
237 if (top >= bottom) | |
238 { | |
239 children_[i]->SetEmpty(); | |
240 } | |
241 else | |
242 { | |
243 children_[i]->SetRectangle(paddingTop_, | |
244 static_cast<unsigned int>(top), | |
245 width_ - paddingLeft_ - paddingRight_, | |
246 boost::math::iround(bottom - top)); | |
247 } | |
248 } | |
249 } | |
250 | |
251 NotifyChange(*this); | |
252 } | |
253 | |
254 | |
255 void LayoutWidget::UpdateStep() | |
256 { | |
257 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
258 } | |
259 | |
260 | |
261 LayoutWidget::LayoutWidget() : | |
262 isHorizontal_(true), | |
263 started_(false), | |
264 width_(0), | |
265 height_(0), | |
266 paddingLeft_(0), | |
267 paddingTop_(0), | |
268 paddingRight_(0), | |
269 paddingBottom_(0), | |
270 paddingInternal_(0) | |
271 { | |
272 } | |
273 | |
274 | |
275 LayoutWidget::~LayoutWidget() | |
276 { | |
277 for (size_t i = 0; i < children_.size(); i++) | |
278 { | |
279 children_[i]->GetWidget().Unregister(*this); | |
280 delete children_[i]; | |
281 } | |
282 } | |
283 | |
284 | |
285 void LayoutWidget::NotifyChange(const IWidget& widget) | |
286 { | |
287 // One of the children has changed | |
288 WidgetBase::NotifyChange(); | |
289 } | |
290 | |
291 | |
292 void LayoutWidget::SetHorizontal() | |
293 { | |
294 isHorizontal_ = true; | |
295 ComputeChildrenExtents(); | |
296 } | |
297 | |
298 | |
299 void LayoutWidget::SetVertical() | |
300 { | |
301 isHorizontal_ = false; | |
302 ComputeChildrenExtents(); | |
303 } | |
304 | |
305 | |
306 void LayoutWidget::SetPadding(unsigned int left, | |
307 unsigned int top, | |
308 unsigned int right, | |
309 unsigned int bottom, | |
310 unsigned int spacing) | |
311 { | |
312 paddingLeft_ = left; | |
313 paddingTop_ = top; | |
314 paddingRight_ = right; | |
315 paddingBottom_ = bottom; | |
316 paddingInternal_ = spacing; | |
317 } | |
318 | |
319 | |
320 void LayoutWidget::SetPadding(unsigned int padding) | |
321 { | |
322 paddingLeft_ = padding; | |
323 paddingTop_ = padding; | |
324 paddingRight_ = padding; | |
325 paddingBottom_ = padding; | |
326 paddingInternal_ = padding; | |
327 } | |
328 | |
329 | |
330 IWidget& LayoutWidget::AddWidget(IWidget* widget) // Takes ownership | |
331 { | |
332 if (started_) | |
333 { | |
334 LOG(ERROR) << "Cannot add child once Start() has been invoked"; | |
335 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
336 } | |
337 | |
338 if (widget == NULL) | |
339 { | |
340 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
341 } | |
342 | |
343 if (GetStatusBar() != NULL) | |
344 { | |
345 widget->SetStatusBar(*GetStatusBar()); | |
346 } | |
347 else | |
348 { | |
349 widget->ResetStatusBar(); | |
350 } | |
351 | |
352 children_.push_back(new ChildWidget(widget)); | |
353 widget->Register(*this); | |
354 | |
355 ComputeChildrenExtents(); | |
356 | |
357 return *widget; | |
358 } | |
359 | |
360 | |
361 void LayoutWidget::SetStatusBar(IStatusBar& statusBar) | |
362 { | |
363 WidgetBase::SetStatusBar(statusBar); | |
364 | |
365 for (size_t i = 0; i < children_.size(); i++) | |
366 { | |
367 children_[i]->GetWidget().SetStatusBar(statusBar); | |
368 } | |
369 } | |
370 | |
371 | |
372 void LayoutWidget::ResetStatusBar() | |
373 { | |
374 WidgetBase::ResetStatusBar(); | |
375 | |
376 for (size_t i = 0; i < children_.size(); i++) | |
377 { | |
378 children_[i]->GetWidget().ResetStatusBar(); | |
379 } | |
380 } | |
381 | |
382 | |
383 void LayoutWidget::Start() | |
384 { | |
385 for (size_t i = 0; i < children_.size(); i++) | |
386 { | |
387 children_[i]->GetWidget().Start(); | |
388 } | |
389 | |
390 WidgetBase::Start(); | |
391 } | |
392 | |
393 | |
394 void LayoutWidget::Stop() | |
395 { | |
396 WidgetBase::Stop(); | |
397 | |
398 for (size_t i = 0; i < children_.size(); i++) | |
399 { | |
400 children_[i]->GetWidget().Stop(); | |
401 } | |
402 } | |
403 | |
404 | |
405 void LayoutWidget::SetSize(unsigned int width, | |
406 unsigned int height) | |
407 { | |
408 width_ = width; | |
409 height_ = height; | |
410 ComputeChildrenExtents(); | |
411 } | |
412 | |
413 | |
414 bool LayoutWidget::Render(Orthanc::ImageAccessor& surface) | |
415 { | |
416 if (!WidgetBase::Render(surface)) | |
417 { | |
418 return false; | |
419 } | |
420 | |
421 for (size_t i = 0; i < children_.size(); i++) | |
422 { | |
423 if (!children_[i]->Render(surface)) | |
424 { | |
425 return false; | |
426 } | |
427 } | |
428 | |
429 return true; | |
430 } | |
431 | |
432 | |
433 IMouseTracker* LayoutWidget::CreateMouseTracker(MouseButton button, | |
434 int x, | |
435 int y, | |
436 KeyboardModifiers modifiers) | |
437 { | |
438 for (size_t i = 0; i < children_.size(); i++) | |
439 { | |
440 IMouseTracker* tracker = children_[i]->CreateMouseTracker(button, x, y, modifiers); | |
441 if (tracker != NULL) | |
442 { | |
443 return tracker; | |
444 } | |
445 } | |
446 | |
447 return NULL; | |
448 } | |
449 | |
450 | |
451 void LayoutWidget::RenderMouseOver(Orthanc::ImageAccessor& target, | |
452 int x, | |
453 int y) | |
454 { | |
455 for (size_t i = 0; i < children_.size(); i++) | |
456 { | |
457 children_[i]->RenderMouseOver(target, x, y); | |
458 } | |
459 } | |
460 | |
461 | |
462 void LayoutWidget::MouseWheel(MouseWheelDirection direction, | |
463 int x, | |
464 int y, | |
465 KeyboardModifiers modifiers) | |
466 { | |
467 for (size_t i = 0; i < children_.size(); i++) | |
468 { | |
469 children_[i]->MouseWheel(direction, x, y, modifiers); | |
470 } | |
471 } | |
472 | |
473 | |
474 void LayoutWidget::KeyPressed(char key, | |
475 KeyboardModifiers modifiers) | |
476 { | |
477 for (size_t i = 0; i < children_.size(); i++) | |
478 { | |
479 children_[i]->GetWidget().KeyPressed(key, modifiers); | |
480 } | |
481 } | |
482 } |