Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WidgetBase.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 "WidgetBase.h" | |
23 | |
16 | 24 #include "../../Resources/Orthanc/Core/OrthancException.h" |
25 #include "../../Resources/Orthanc/Core/Images/ImageProcessing.h" | |
26 #include "../../Resources/Orthanc/Core/Logging.h" | |
0 | 27 |
28 namespace OrthancStone | |
29 { | |
30 void WidgetBase::ClearBackgroundOrthanc(Orthanc::ImageAccessor& target) const | |
31 { | |
32 // Clear the background using Orthanc | |
33 | |
34 if (backgroundCleared_) | |
35 { | |
36 Orthanc::ImageProcessing::Set(target, | |
37 backgroundColor_[0], | |
38 backgroundColor_[1], | |
39 backgroundColor_[2], | |
40 255 /* alpha */); | |
41 } | |
42 } | |
43 | |
44 | |
45 void WidgetBase::ClearBackgroundCairo(CairoContext& context) const | |
46 { | |
47 // Clear the background using Cairo | |
48 | |
49 if (IsBackgroundCleared()) | |
50 { | |
51 uint8_t red, green, blue; | |
52 GetBackgroundColor(red, green, blue); | |
53 | |
54 context.SetSourceColor(red, green, blue); | |
55 cairo_paint(context.GetObject()); | |
56 } | |
57 } | |
58 | |
59 | |
60 void WidgetBase::ClearBackgroundCairo(Orthanc::ImageAccessor& target) const | |
61 { | |
62 CairoSurface surface(target); | |
63 CairoContext context(surface); | |
64 ClearBackgroundCairo(context); | |
65 } | |
66 | |
67 | |
68 void WidgetBase::NotifyChange() | |
69 { | |
70 observers_.NotifyChange(this); | |
71 } | |
72 | |
73 | |
74 void WidgetBase::UpdateStatusBar(const std::string& message) | |
75 { | |
76 if (statusBar_ != NULL) | |
77 { | |
78 statusBar_->SetMessage(message); | |
79 } | |
80 } | |
81 | |
82 | |
83 void WidgetBase::WorkerThread(WidgetBase* that) | |
84 { | |
85 while (that->started_) | |
86 { | |
87 that->UpdateStep(); | |
88 } | |
89 } | |
90 | |
91 | |
92 WidgetBase::WidgetBase() : | |
93 statusBar_(NULL), | |
94 started_(false), | |
95 backgroundCleared_(false) | |
96 { | |
97 backgroundColor_[0] = 0; | |
98 backgroundColor_[1] = 0; | |
99 backgroundColor_[2] = 0; | |
100 } | |
101 | |
102 | |
103 void WidgetBase::SetBackgroundColor(uint8_t red, | |
104 uint8_t green, | |
105 uint8_t blue) | |
106 { | |
107 backgroundColor_[0] = red; | |
108 backgroundColor_[1] = green; | |
109 backgroundColor_[2] = blue; | |
110 } | |
111 | |
112 void WidgetBase::GetBackgroundColor(uint8_t& red, | |
113 uint8_t& green, | |
114 uint8_t& blue) const | |
115 { | |
116 red = backgroundColor_[0]; | |
117 green = backgroundColor_[1]; | |
118 blue = backgroundColor_[2]; | |
119 } | |
120 | |
121 | |
122 void WidgetBase::Register(IChangeObserver& observer) | |
123 { | |
124 observers_.Register(observer); | |
125 } | |
126 | |
127 | |
128 void WidgetBase::Unregister(IChangeObserver& observer) | |
129 { | |
130 observers_.Unregister(observer); | |
131 } | |
132 | |
133 | |
134 void WidgetBase::Start() | |
135 { | |
136 if (started_) | |
137 { | |
138 LOG(ERROR) << "Cannot Start() twice"; | |
139 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
140 } | |
141 | |
142 started_ = true; | |
143 | |
144 if (HasUpdateThread()) | |
145 { | |
146 thread_ = boost::thread(WorkerThread, this); | |
147 } | |
148 } | |
149 | |
150 | |
151 void WidgetBase::Stop() | |
152 { | |
153 if (!started_) | |
154 { | |
155 LOG(ERROR) << "Cannot Stop() if Start() has not been invoked"; | |
156 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
157 } | |
158 | |
159 started_ = false; | |
160 | |
161 if (HasUpdateThread() && | |
162 thread_.joinable()) | |
163 { | |
164 thread_.join(); | |
165 } | |
166 } | |
167 | |
168 | |
169 bool WidgetBase::Render(Orthanc::ImageAccessor& surface) | |
170 { | |
171 #if 0 | |
172 ClearBackgroundOrthanc(surface); | |
173 #else | |
174 ClearBackgroundCairo(surface); // Faster than Orthanc | |
175 #endif | |
176 | |
177 return true; | |
178 } | |
179 } |