Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WidgetBase.cpp @ 46:766d31dc5716 wasm
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| 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 | |
|
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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 } |