Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WidgetBase.cpp @ 46:766d31dc5716 wasm
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 19 Apr 2017 14:33:06 +0200 |
parents | 7207a407bcd8 |
children | 25befef48c35 |
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 | |
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 "WidgetBase.h" | |
35 | |
16 | 36 #include "../../Resources/Orthanc/Core/OrthancException.h" |
37 #include "../../Resources/Orthanc/Core/Images/ImageProcessing.h" | |
38 #include "../../Resources/Orthanc/Core/Logging.h" | |
0 | 39 |
40 namespace OrthancStone | |
41 { | |
42 void WidgetBase::ClearBackgroundOrthanc(Orthanc::ImageAccessor& target) const | |
43 { | |
44 // Clear the background using Orthanc | |
45 | |
46 if (backgroundCleared_) | |
47 { | |
48 Orthanc::ImageProcessing::Set(target, | |
49 backgroundColor_[0], | |
50 backgroundColor_[1], | |
51 backgroundColor_[2], | |
52 255 /* alpha */); | |
53 } | |
54 } | |
55 | |
56 | |
57 void WidgetBase::ClearBackgroundCairo(CairoContext& context) const | |
58 { | |
59 // Clear the background using Cairo | |
60 | |
61 if (IsBackgroundCleared()) | |
62 { | |
63 uint8_t red, green, blue; | |
64 GetBackgroundColor(red, green, blue); | |
65 | |
66 context.SetSourceColor(red, green, blue); | |
67 cairo_paint(context.GetObject()); | |
68 } | |
69 } | |
70 | |
71 | |
72 void WidgetBase::ClearBackgroundCairo(Orthanc::ImageAccessor& target) const | |
73 { | |
74 CairoSurface surface(target); | |
75 CairoContext context(surface); | |
76 ClearBackgroundCairo(context); | |
77 } | |
78 | |
79 | |
80 void WidgetBase::NotifyChange() | |
81 { | |
82 observers_.NotifyChange(this); | |
83 } | |
84 | |
85 | |
86 void WidgetBase::UpdateStatusBar(const std::string& message) | |
87 { | |
88 if (statusBar_ != NULL) | |
89 { | |
90 statusBar_->SetMessage(message); | |
91 } | |
92 } | |
93 | |
94 | |
95 WidgetBase::WidgetBase() : | |
96 statusBar_(NULL), | |
97 started_(false), | |
98 backgroundCleared_(false) | |
99 { | |
100 backgroundColor_[0] = 0; | |
101 backgroundColor_[1] = 0; | |
102 backgroundColor_[2] = 0; | |
103 } | |
104 | |
105 | |
106 void WidgetBase::SetBackgroundColor(uint8_t red, | |
107 uint8_t green, | |
108 uint8_t blue) | |
109 { | |
110 backgroundColor_[0] = red; | |
111 backgroundColor_[1] = green; | |
112 backgroundColor_[2] = blue; | |
113 } | |
114 | |
115 void WidgetBase::GetBackgroundColor(uint8_t& red, | |
116 uint8_t& green, | |
117 uint8_t& blue) const | |
118 { | |
119 red = backgroundColor_[0]; | |
120 green = backgroundColor_[1]; | |
121 blue = backgroundColor_[2]; | |
122 } | |
123 | |
124 | |
125 void WidgetBase::Register(IChangeObserver& observer) | |
126 { | |
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127 if (started_) |
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128 { |
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129 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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130 } |
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131 |
0 | 132 observers_.Register(observer); |
133 } | |
134 | |
135 | |
136 void WidgetBase::Unregister(IChangeObserver& observer) | |
137 { | |
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138 if (started_) |
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139 { |
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140 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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141 } |
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142 |
0 | 143 observers_.Unregister(observer); |
144 } | |
145 | |
146 | |
147 void WidgetBase::Start() | |
148 { | |
149 if (started_) | |
150 { | |
151 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
152 } | |
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153 else |
0 | 154 { |
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155 started_ = true; |
0 | 156 } |
157 } | |
158 | |
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159 |
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160 void WidgetBase::Stop() |
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161 { |
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162 if (started_) |
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163 { |
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164 started_ = false; |
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165 } |
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166 else |
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167 { |
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168 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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169 } |
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170 } |
0 | 171 |
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172 |
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173 bool WidgetBase::Render(Orthanc::ImageAccessor& surface) |
0 | 174 { |
175 if (!started_) | |
176 { | |
177 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
178 } | |
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179 |
0 | 180 #if 0 |
181 ClearBackgroundOrthanc(surface); | |
182 #else | |
183 ClearBackgroundCairo(surface); // Faster than Orthanc | |
184 #endif | |
185 | |
186 return true; | |
187 } | |
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188 |
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189 |
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190 void WidgetBase::UpdateContent() |
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191 { |
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192 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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193 } |
0 | 194 } |