Mercurial > hg > orthanc-stone

annotate Framework/Layers/OrthancFrameLayerSource.cpp @ 86:02c3a7a4938f wasm

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removing of the Start() mechanism
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 26 May 2017 13:42:50 +0200
parents bd48431ac285
children f244018a4e4b
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017 Osimis, Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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22 #include "OrthancFrameLayerSource.h"
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24 #include "FrameRenderer.h"
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25 #include "../../Resources/Orthanc/Core/Images/PngReader.h"
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26 #include "../../Resources/Orthanc/Core/Logging.h"
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27 #include "../../Resources/Orthanc/Core/OrthancException.h"
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28 #include "../Toolbox/DicomFrameConverter.h"
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30 #include <boost/lexical_cast.hpp>
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33 namespace OrthancStone
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34 {
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35 void OrthancFrameLayerSource::NotifyGeometryReady(const OrthancSlicesLoader& loader)
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36 {
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37 if (loader.GetSliceCount() > 0)
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38 {
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39 // Make sure all the slices are parallel. TODO Alleviate this constraint
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40 for (size_t i = 1; i < loader.GetSliceCount(); i++)
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41 {
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42 if (!GeometryToolbox::IsParallel(loader.GetSlice(i).GetGeometry().GetNormal(),
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43 loader.GetSlice(0).GetGeometry().GetNormal()))
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44 {
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45 LayerSourceBase::NotifyGeometryError();
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46 return;
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47 }
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48 }
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49 }
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50
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51 LayerSourceBase::NotifyGeometryReady();
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52
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53 if (observer2_ != NULL)
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54 {
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55 ParallelSlices slices;
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56
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57 for (size_t i = 0; i < loader.GetSliceCount(); i++)
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58 {
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59 slices.AddSlice(loader.GetSlice(i).GetGeometry());
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60 }
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61
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62 observer2_->NotifySlicesAvailable(slices);
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63 }
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64 }
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65
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66 void OrthancFrameLayerSource::NotifyGeometryError(const OrthancSlicesLoader& loader)
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67 {
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68 LayerSourceBase::NotifyGeometryError();
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69 }
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70
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71 void OrthancFrameLayerSource::NotifySliceImageReady(const OrthancSlicesLoader& loader,
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72 unsigned int sliceIndex,
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73 const Slice& slice,
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74 Orthanc::ImageAccessor* image)
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75 {
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76 LayerSourceBase::NotifyLayerReady(FrameRenderer::CreateRenderer(image, slice, true), slice);
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77 }
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78
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79 void OrthancFrameLayerSource::NotifySliceImageError(const OrthancSlicesLoader& loader,
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80 unsigned int sliceIndex,
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81 const Slice& slice)
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82 {
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83 LayerSourceBase::NotifyLayerError(slice.GetGeometry());
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84 }
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86 OrthancFrameLayerSource::OrthancFrameLayerSource(IWebService& orthanc,
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87 const std::string& instanceId,
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88 unsigned int frame) :
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89 instanceId_(instanceId),
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90 frame_(frame),
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91 loader_(*this, orthanc),
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92 observer2_(NULL)
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93 {
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94 loader_.ScheduleLoadInstance(instanceId_, frame_);
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95 }
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96
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97
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98 void OrthancFrameLayerSource::SetObserver(IVolumeSlicesObserver& observer)
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99 {
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100 if (observer2_ == NULL)
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101 {
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102 observer2_ = &observer;
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103 }
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104 else
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105 {
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106 // Cannot add more than one observer
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107 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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108 }
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109 }
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110
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111
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112 bool OrthancFrameLayerSource::GetExtent(double& x1,
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113 double& y1,
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114 double& x2,
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115 double& y2,
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116 const SliceGeometry& viewportSlice)
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117 {
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118 bool ok = false;
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119
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120 if (loader_.IsGeometryReady())
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121 {
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122 double tx1, ty1, tx2, ty2;
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123
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124 for (size_t i = 0; i < loader_.GetSliceCount(); i++)
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125 {
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126 if (FrameRenderer::ComputeFrameExtent(tx1, ty1, tx2, ty2, viewportSlice, loader_.GetSlice(i)))
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127 {
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128 if (ok)
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129 {
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130 x1 = std::min(x1, tx1);
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131 y1 = std::min(y1, ty1);
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132 x2 = std::min(x2, tx2);
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133 y2 = std::min(y2, ty2);
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134 }
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135 else
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136 {
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137 // This is the first slice parallel to the viewport
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138 x1 = tx1;
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139 y1 = ty1;
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140 x2 = tx2;
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141 y2 = ty2;
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142 ok = true;
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143 }
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144 }
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145 }
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146 }
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147
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148 return ok;
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149 }
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152 void OrthancFrameLayerSource::ScheduleLayerCreation(const SliceGeometry& viewportSlice)
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153 {
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154 size_t index;
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155
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156 if (loader_.IsGeometryReady())
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157 {
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158 if (loader_.LookupSlice(index, viewportSlice))
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159 {
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160 loader_.ScheduleLoadSliceImage(index);
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161 }
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162 else
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163 {
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164 LayerSourceBase::NotifyLayerError(viewportSlice);
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165 }
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166 }
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167 }
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168 }