Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayoutWidget.cpp @ 46:766d31dc5716 wasm
removing threads for wasm
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Wed, 19 Apr 2017 14:33:06 +0200 |
parents | 7207a407bcd8 |
children | 25befef48c35 |
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 | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
11 * | |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
23 * | |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
34 #include "LayoutWidget.h" | |
35 | |
16 | 36 #include "../../Resources/Orthanc/Core/Logging.h" |
37 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
0 | 38 |
39 #include <boost/math/special_functions/round.hpp> | |
40 | |
41 namespace OrthancStone | |
42 { | |
43 class LayoutWidget::LayoutMouseTracker : public IMouseTracker | |
44 { | |
45 private: | |
46 std::auto_ptr<IMouseTracker> tracker_; | |
47 int left_; | |
48 int top_; | |
49 unsigned int width_; | |
50 unsigned int height_; | |
51 | |
52 public: | |
53 LayoutMouseTracker(IMouseTracker* tracker, | |
54 int left, | |
55 int top, | |
56 unsigned int width, | |
57 unsigned int height) : | |
58 tracker_(tracker), | |
59 left_(left), | |
60 top_(top), | |
61 width_(width), | |
62 height_(height) | |
63 { | |
64 if (tracker == NULL) | |
65 { | |
66 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
67 } | |
68 } | |
69 | |
70 virtual void Render(Orthanc::ImageAccessor& surface) | |
71 { | |
72 Orthanc::ImageAccessor accessor = surface.GetRegion(left_, top_, width_, height_); | |
73 tracker_->Render(accessor); | |
74 } | |
75 | |
76 virtual void MouseUp() | |
77 { | |
78 tracker_->MouseUp(); | |
79 } | |
80 | |
81 virtual void MouseMove(int x, | |
82 int y) | |
83 { | |
84 tracker_->MouseMove(x - left_, y - top_); | |
85 } | |
86 }; | |
87 | |
88 | |
89 class LayoutWidget::ChildWidget : public boost::noncopyable | |
90 { | |
91 private: | |
92 std::auto_ptr<IWidget> widget_; | |
93 int left_; | |
94 int top_; | |
95 unsigned int width_; | |
96 unsigned int height_; | |
97 | |
98 public: | |
99 ChildWidget(IWidget* widget) : | |
100 widget_(widget) | |
101 { | |
102 assert(widget != NULL); | |
103 SetEmpty(); | |
104 } | |
105 | |
106 IWidget& GetWidget() const | |
107 { | |
108 return *widget_; | |
109 } | |
110 | |
111 void SetRectangle(unsigned int left, | |
112 unsigned int top, | |
113 unsigned int width, | |
114 unsigned int height) | |
115 { | |
116 left_ = left; | |
117 top_ = top; | |
118 width_ = width; | |
119 height_ = height; | |
120 | |
121 widget_->SetSize(width, height); | |
122 } | |
123 | |
124 void SetEmpty() | |
125 { | |
126 SetRectangle(0, 0, 0, 0); | |
127 } | |
128 | |
129 bool Contains(int x, | |
130 int y) const | |
131 { | |
132 return (x >= left_ && | |
133 y >= top_ && | |
134 x < left_ + static_cast<int>(width_) && | |
135 y < top_ + static_cast<int>(height_)); | |
136 } | |
137 | |
138 bool Render(Orthanc::ImageAccessor& target) | |
139 { | |
140 if (width_ == 0 || | |
141 height_ == 0) | |
142 { | |
143 return true; | |
144 } | |
145 else | |
146 { | |
147 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
148 return widget_->Render(accessor); | |
149 } | |
150 } | |
151 | |
152 IMouseTracker* CreateMouseTracker(MouseButton button, | |
153 int x, | |
154 int y, | |
155 KeyboardModifiers modifiers) | |
156 { | |
157 if (Contains(x, y)) | |
158 { | |
159 IMouseTracker* tracker = widget_->CreateMouseTracker(button, | |
160 x - left_, | |
161 y - top_, | |
162 modifiers); | |
163 if (tracker) | |
164 { | |
165 return new LayoutMouseTracker(tracker, left_, top_, width_, height_); | |
166 } | |
167 } | |
168 | |
169 return NULL; | |
170 } | |
171 | |
172 void RenderMouseOver(Orthanc::ImageAccessor& target, | |
173 int x, | |
174 int y) | |
175 { | |
176 if (Contains(x, y)) | |
177 { | |
178 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_); | |
179 | |
180 widget_->RenderMouseOver(accessor, x - left_, y - top_); | |
181 } | |
182 } | |
183 | |
184 void MouseWheel(MouseWheelDirection direction, | |
185 int x, | |
186 int y, | |
187 KeyboardModifiers modifiers) | |
188 { | |
189 if (Contains(x, y)) | |
190 { | |
191 widget_->MouseWheel(direction, x - left_, y - top_, modifiers); | |
192 } | |
193 } | |
194 }; | |
195 | |
196 | |
197 void LayoutWidget::ComputeChildrenExtents() | |
198 { | |
199 if (children_.size() == 0) | |
200 { | |
201 return; | |
202 } | |
203 | |
204 float internal = static_cast<float>(paddingInternal_); | |
205 | |
206 if (width_ <= paddingLeft_ + paddingRight_ || | |
207 height_ <= paddingTop_ + paddingBottom_) | |
208 { | |
209 for (size_t i = 0; i < children_.size(); i++) | |
210 { | |
211 children_[i]->SetEmpty(); | |
212 } | |
213 } | |
214 else if (isHorizontal_) | |
215 { | |
216 unsigned int padding = paddingLeft_ + paddingRight_ + (children_.size() - 1) * paddingInternal_; | |
217 float childWidth = ((static_cast<float>(width_) - static_cast<float>(padding)) / | |
218 static_cast<float>(children_.size())); | |
219 | |
220 for (size_t i = 0; i < children_.size(); i++) | |
221 { | |
222 float left = static_cast<float>(paddingLeft_) + static_cast<float>(i) * (childWidth + internal); | |
223 float right = left + childWidth; | |
224 | |
225 if (left >= right) | |
226 { | |
227 children_[i]->SetEmpty(); | |
228 } | |
229 else | |
230 { | |
231 children_[i]->SetRectangle(static_cast<unsigned int>(left), | |
232 paddingTop_, | |
233 boost::math::iround(right - left), | |
234 height_ - paddingTop_ - paddingBottom_); | |
235 } | |
236 } | |
237 } | |
238 else | |
239 { | |
240 unsigned int padding = paddingTop_ + paddingBottom_ + (children_.size() - 1) * paddingInternal_; | |
241 float childHeight = ((static_cast<float>(height_) - static_cast<float>(padding)) / | |
242 static_cast<float>(children_.size())); | |
243 | |
244 for (size_t i = 0; i < children_.size(); i++) | |
245 { | |
246 float top = static_cast<float>(paddingTop_) + static_cast<float>(i) * (childHeight + internal); | |
247 float bottom = top + childHeight; | |
248 | |
249 if (top >= bottom) | |
250 { | |
251 children_[i]->SetEmpty(); | |
252 } | |
253 else | |
254 { | |
255 children_[i]->SetRectangle(paddingTop_, | |
256 static_cast<unsigned int>(top), | |
257 width_ - paddingLeft_ - paddingRight_, | |
258 boost::math::iround(bottom - top)); | |
259 } | |
260 } | |
261 } | |
262 | |
263 NotifyChange(*this); | |
264 } | |
265 | |
266 | |
267 LayoutWidget::LayoutWidget() : | |
268 isHorizontal_(true), | |
269 started_(false), | |
270 width_(0), | |
271 height_(0), | |
272 paddingLeft_(0), | |
273 paddingTop_(0), | |
274 paddingRight_(0), | |
275 paddingBottom_(0), | |
276 paddingInternal_(0) | |
277 { | |
278 } | |
279 | |
280 | |
281 LayoutWidget::~LayoutWidget() | |
282 { | |
283 for (size_t i = 0; i < children_.size(); i++) | |
284 { | |
285 children_[i]->GetWidget().Unregister(*this); | |
286 delete children_[i]; | |
287 } | |
288 } | |
289 | |
290 | |
291 void LayoutWidget::NotifyChange(const IWidget& widget) | |
292 { | |
293 // One of the children has changed | |
294 WidgetBase::NotifyChange(); | |
295 } | |
296 | |
297 | |
298 void LayoutWidget::SetHorizontal() | |
299 { | |
300 isHorizontal_ = true; | |
301 ComputeChildrenExtents(); | |
302 } | |
303 | |
304 | |
305 void LayoutWidget::SetVertical() | |
306 { | |
307 isHorizontal_ = false; | |
308 ComputeChildrenExtents(); | |
309 } | |
310 | |
311 | |
312 void LayoutWidget::SetPadding(unsigned int left, | |
313 unsigned int top, | |
314 unsigned int right, | |
315 unsigned int bottom, | |
316 unsigned int spacing) | |
317 { | |
318 paddingLeft_ = left; | |
319 paddingTop_ = top; | |
320 paddingRight_ = right; | |
321 paddingBottom_ = bottom; | |
322 paddingInternal_ = spacing; | |
323 } | |
324 | |
325 | |
326 void LayoutWidget::SetPadding(unsigned int padding) | |
327 { | |
328 paddingLeft_ = padding; | |
329 paddingTop_ = padding; | |
330 paddingRight_ = padding; | |
331 paddingBottom_ = padding; | |
332 paddingInternal_ = padding; | |
333 } | |
334 | |
335 | |
336 IWidget& LayoutWidget::AddWidget(IWidget* widget) // Takes ownership | |
337 { | |
338 if (started_) | |
339 { | |
340 LOG(ERROR) << "Cannot add child once Start() has been invoked"; | |
341 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
342 } | |
343 | |
344 if (widget == NULL) | |
345 { | |
346 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
347 } | |
348 | |
349 if (GetStatusBar() != NULL) | |
350 { | |
351 widget->SetStatusBar(*GetStatusBar()); | |
352 } | |
353 else | |
354 { | |
355 widget->ResetStatusBar(); | |
356 } | |
357 | |
358 children_.push_back(new ChildWidget(widget)); | |
359 widget->Register(*this); | |
360 | |
361 ComputeChildrenExtents(); | |
362 | |
363 return *widget; | |
364 } | |
365 | |
366 | |
367 void LayoutWidget::SetStatusBar(IStatusBar& statusBar) | |
368 { | |
369 WidgetBase::SetStatusBar(statusBar); | |
370 | |
371 for (size_t i = 0; i < children_.size(); i++) | |
372 { | |
373 children_[i]->GetWidget().SetStatusBar(statusBar); | |
374 } | |
375 } | |
376 | |
377 | |
378 void LayoutWidget::ResetStatusBar() | |
379 { | |
380 WidgetBase::ResetStatusBar(); | |
381 | |
382 for (size_t i = 0; i < children_.size(); i++) | |
383 { | |
384 children_[i]->GetWidget().ResetStatusBar(); | |
385 } | |
386 } | |
387 | |
388 | |
389 void LayoutWidget::Start() | |
390 { | |
391 for (size_t i = 0; i < children_.size(); i++) | |
392 { | |
393 children_[i]->GetWidget().Start(); | |
394 } | |
395 | |
396 WidgetBase::Start(); | |
397 } | |
398 | |
399 | |
400 void LayoutWidget::Stop() | |
401 { | |
402 WidgetBase::Stop(); | |
403 | |
404 for (size_t i = 0; i < children_.size(); i++) | |
405 { | |
406 children_[i]->GetWidget().Stop(); | |
407 } | |
408 } | |
409 | |
410 | |
411 void LayoutWidget::SetSize(unsigned int width, | |
412 unsigned int height) | |
413 { | |
414 width_ = width; | |
415 height_ = height; | |
416 ComputeChildrenExtents(); | |
417 } | |
418 | |
419 | |
420 bool LayoutWidget::Render(Orthanc::ImageAccessor& surface) | |
421 { | |
422 if (!WidgetBase::Render(surface)) | |
423 { | |
424 return false; | |
425 } | |
426 | |
427 for (size_t i = 0; i < children_.size(); i++) | |
428 { | |
429 if (!children_[i]->Render(surface)) | |
430 { | |
431 return false; | |
432 } | |
433 } | |
434 | |
435 return true; | |
436 } | |
437 | |
438 | |
439 IMouseTracker* LayoutWidget::CreateMouseTracker(MouseButton button, | |
440 int x, | |
441 int y, | |
442 KeyboardModifiers modifiers) | |
443 { | |
444 for (size_t i = 0; i < children_.size(); i++) | |
445 { | |
446 IMouseTracker* tracker = children_[i]->CreateMouseTracker(button, x, y, modifiers); | |
447 if (tracker != NULL) | |
448 { | |
449 return tracker; | |
450 } | |
451 } | |
452 | |
453 return NULL; | |
454 } | |
455 | |
456 | |
457 void LayoutWidget::RenderMouseOver(Orthanc::ImageAccessor& target, | |
458 int x, | |
459 int y) | |
460 { | |
461 for (size_t i = 0; i < children_.size(); i++) | |
462 { | |
463 children_[i]->RenderMouseOver(target, x, y); | |
464 } | |
465 } | |
466 | |
467 | |
468 void LayoutWidget::MouseWheel(MouseWheelDirection direction, | |
469 int x, | |
470 int y, | |
471 KeyboardModifiers modifiers) | |
472 { | |
473 for (size_t i = 0; i < children_.size(); i++) | |
474 { | |
475 children_[i]->MouseWheel(direction, x, y, modifiers); | |
476 } | |
477 } | |
478 | |
479 | |
480 void LayoutWidget::KeyPressed(char key, | |
481 KeyboardModifiers modifiers) | |
482 { | |
483 for (size_t i = 0; i < children_.size(); i++) | |
484 { | |
485 children_[i]->GetWidget().KeyPressed(key, modifiers); | |
486 } | |
487 } | |
488 } |