Mercurial > hg > orthanc-stone
annotate Framework/Widgets/WidgetBase.cpp @ 134:4cff7b1ed31d
upgrade to year 2018
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 02 Jan 2018 09:51:36 +0100 |
| parents | 28956ed68280 |
| children | fccffbf99ba1 |
| 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 | |
|
134
4cff7b1ed31d
upgrade to year 2018
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
47
diff
changeset
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5 * Copyright (C) 2017-2018 Osimis S.A., 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 } |