Mercurial > hg > orthanc-stone
comparison Framework/Viewport/WidgetViewport.cpp @ 0:351ab0da0150
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 14 Oct 2016 15:34:11 +0200 |
parents | |
children | ff1e935768e7 |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
33 #include "WidgetViewport.h" | |
34 | |
35 #include "../Orthanc/Core/Images/ImageProcessing.h" | |
36 #include "../Orthanc/Core/OrthancException.h" | |
37 | |
38 namespace OrthancStone | |
39 { | |
40 void WidgetViewport::UnregisterCentralWidget() | |
41 { | |
42 mouseTracker_.reset(NULL); | |
43 | |
44 if (centralWidget_.get() != NULL) | |
45 { | |
46 centralWidget_->Unregister(*this); | |
47 } | |
48 } | |
49 | |
50 | |
51 WidgetViewport::WidgetViewport() : | |
52 statusBar_(NULL), | |
53 isMouseOver_(false), | |
54 lastMouseX_(0), | |
55 lastMouseY_(0), | |
56 backgroundChanged_(false), | |
57 started_(false) | |
58 { | |
59 } | |
60 | |
61 | |
62 void WidgetViewport::SetStatusBar(IStatusBar& statusBar) | |
63 { | |
64 boost::mutex::scoped_lock lock(mutex_); | |
65 | |
66 statusBar_ = &statusBar; | |
67 | |
68 if (centralWidget_.get() != NULL) | |
69 { | |
70 centralWidget_->SetStatusBar(statusBar); | |
71 } | |
72 } | |
73 | |
74 | |
75 void WidgetViewport::ResetStatusBar() | |
76 { | |
77 boost::mutex::scoped_lock lock(mutex_); | |
78 | |
79 statusBar_ = NULL; | |
80 | |
81 if (centralWidget_.get() != NULL) | |
82 { | |
83 centralWidget_->ResetStatusBar(); | |
84 } | |
85 } | |
86 | |
87 | |
88 IWidget& WidgetViewport::SetCentralWidget(IWidget* widget) | |
89 { | |
90 if (started_) | |
91 { | |
92 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
93 } | |
94 | |
95 boost::mutex::scoped_lock lock(mutex_); | |
96 | |
97 if (widget == NULL) | |
98 { | |
99 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
100 } | |
101 | |
102 UnregisterCentralWidget(); | |
103 | |
104 centralWidget_.reset(widget); | |
105 centralWidget_->Register(*this); | |
106 | |
107 if (statusBar_ == NULL) | |
108 { | |
109 centralWidget_->ResetStatusBar(); | |
110 } | |
111 else | |
112 { | |
113 centralWidget_->SetStatusBar(*statusBar_); | |
114 } | |
115 | |
116 backgroundChanged_ = true; | |
117 | |
118 return *widget; | |
119 } | |
120 | |
121 | |
122 void WidgetViewport::NotifyChange(const IWidget& widget) | |
123 { | |
124 backgroundChanged_ = true; | |
125 observers_.NotifyChange(this); | |
126 } | |
127 | |
128 | |
129 void WidgetViewport::Start() | |
130 { | |
131 boost::mutex::scoped_lock lock(mutex_); | |
132 | |
133 if (centralWidget_.get() != NULL) | |
134 { | |
135 centralWidget_->Start(); | |
136 } | |
137 | |
138 started_ = true; | |
139 } | |
140 | |
141 | |
142 void WidgetViewport::Stop() | |
143 { | |
144 boost::mutex::scoped_lock lock(mutex_); | |
145 | |
146 started_ = false; | |
147 | |
148 if (centralWidget_.get() != NULL) | |
149 { | |
150 centralWidget_->Stop(); | |
151 } | |
152 } | |
153 | |
154 | |
155 void WidgetViewport::SetSize(unsigned int width, | |
156 unsigned int height) | |
157 { | |
158 boost::mutex::scoped_lock lock(mutex_); | |
159 | |
160 background_.SetSize(width, height); | |
161 | |
162 if (centralWidget_.get() != NULL) | |
163 { | |
164 centralWidget_->SetSize(width, height); | |
165 } | |
166 | |
167 observers_.NotifyChange(this); | |
168 } | |
169 | |
170 | |
171 bool WidgetViewport::Render(Orthanc::ImageAccessor& surface) | |
172 { | |
173 boost::mutex::scoped_lock lock(mutex_); | |
174 | |
175 if (!started_ || | |
176 centralWidget_.get() == NULL) | |
177 { | |
178 return false; | |
179 } | |
180 | |
181 if (backgroundChanged_) | |
182 { | |
183 Orthanc::ImageAccessor accessor = background_.GetAccessor(); | |
184 if (!centralWidget_->Render(accessor)) | |
185 { | |
186 return false; | |
187 } | |
188 } | |
189 | |
190 Orthanc::ImageProcessing::Copy(surface, background_.GetAccessor()); | |
191 | |
192 if (mouseTracker_.get() != NULL) | |
193 { | |
194 mouseTracker_->Render(surface); | |
195 } | |
196 else if (isMouseOver_) | |
197 { | |
198 centralWidget_->RenderMouseOver(surface, lastMouseX_, lastMouseY_); | |
199 } | |
200 | |
201 return true; | |
202 } | |
203 | |
204 | |
205 void WidgetViewport::MouseDown(MouseButton button, | |
206 int x, | |
207 int y, | |
208 KeyboardModifiers modifiers) | |
209 { | |
210 boost::mutex::scoped_lock lock(mutex_); | |
211 | |
212 if (!started_) | |
213 { | |
214 return; | |
215 } | |
216 | |
217 lastMouseX_ = x; | |
218 lastMouseY_ = y; | |
219 | |
220 if (centralWidget_.get() != NULL) | |
221 { | |
222 mouseTracker_.reset(centralWidget_->CreateMouseTracker(button, x, y, modifiers)); | |
223 } | |
224 else | |
225 { | |
226 mouseTracker_.reset(NULL); | |
227 } | |
228 | |
229 observers_.NotifyChange(this);; | |
230 } | |
231 | |
232 | |
233 void WidgetViewport::MouseUp() | |
234 { | |
235 boost::mutex::scoped_lock lock(mutex_); | |
236 | |
237 if (!started_) | |
238 { | |
239 return; | |
240 } | |
241 | |
242 if (mouseTracker_.get() != NULL) | |
243 { | |
244 mouseTracker_->MouseUp(); | |
245 mouseTracker_.reset(NULL); | |
246 observers_.NotifyChange(this);; | |
247 } | |
248 } | |
249 | |
250 | |
251 void WidgetViewport::MouseMove(int x, | |
252 int y) | |
253 { | |
254 boost::mutex::scoped_lock lock(mutex_); | |
255 | |
256 if (!started_) | |
257 { | |
258 return; | |
259 } | |
260 | |
261 lastMouseX_ = x; | |
262 lastMouseY_ = y; | |
263 | |
264 if (mouseTracker_.get() != NULL) | |
265 { | |
266 mouseTracker_->MouseMove(x, y); | |
267 } | |
268 | |
269 // The scene must be repainted | |
270 observers_.NotifyChange(this); | |
271 } | |
272 | |
273 | |
274 void WidgetViewport::MouseEnter() | |
275 { | |
276 boost::mutex::scoped_lock lock(mutex_); | |
277 isMouseOver_ = true; | |
278 observers_.NotifyChange(this); | |
279 } | |
280 | |
281 | |
282 void WidgetViewport::MouseLeave() | |
283 { | |
284 boost::mutex::scoped_lock lock(mutex_); | |
285 isMouseOver_ = false; | |
286 observers_.NotifyChange(this); | |
287 } | |
288 | |
289 | |
290 void WidgetViewport::MouseWheel(MouseWheelDirection direction, | |
291 int x, | |
292 int y, | |
293 KeyboardModifiers modifiers) | |
294 { | |
295 boost::mutex::scoped_lock lock(mutex_); | |
296 | |
297 if (!started_) | |
298 { | |
299 return; | |
300 } | |
301 | |
302 if (centralWidget_.get() != NULL && | |
303 mouseTracker_.get() == NULL) | |
304 { | |
305 centralWidget_->MouseWheel(direction, x, y, modifiers); | |
306 } | |
307 } | |
308 | |
309 | |
310 void WidgetViewport::KeyPressed(char key, | |
311 KeyboardModifiers modifiers) | |
312 { | |
313 boost::mutex::scoped_lock lock(mutex_); | |
314 | |
315 if (centralWidget_.get() != NULL && | |
316 mouseTracker_.get() == NULL) | |
317 { | |
318 centralWidget_->KeyPressed(key, modifiers); | |
319 } | |
320 } | |
321 } |