Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyWindowingTracker.cpp @ 1307:8a28a9bf8876 broker
ViewportController now gets a ref to its parent viewport for proper lock usage
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Wed, 04 Mar 2020 10:07:37 +0100 |
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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) 2017-2020 Osimis S.A., 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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21 |
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22 #include "RadiographyWindowingTracker.h" |
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23 #include "RadiographyWidget.h" |
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24 |
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25 #include <Core/OrthancException.h> |
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26 |
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27 |
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28 namespace OrthancStone |
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29 { |
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30 class RadiographyWindowingTracker::UndoRedoCommand : public UndoRedoStack::ICommand |
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31 { |
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32 private: |
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33 RadiographyScene& scene_; |
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34 float sourceCenter_; |
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35 float sourceWidth_; |
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36 float targetCenter_; |
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37 float targetWidth_; |
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38 |
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39 public: |
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40 UndoRedoCommand(const RadiographyWindowingTracker& tracker) : |
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41 scene_(tracker.scene_), |
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42 sourceCenter_(tracker.sourceCenter_), |
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43 sourceWidth_(tracker.sourceWidth_) |
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44 { |
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45 scene_.GetWindowingWithDefault(targetCenter_, targetWidth_); |
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46 } |
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47 |
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48 virtual void Undo() const |
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49 { |
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50 scene_.SetWindowing(sourceCenter_, sourceWidth_); |
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51 } |
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52 |
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53 virtual void Redo() const |
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54 { |
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55 scene_.SetWindowing(targetCenter_, targetWidth_); |
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56 } |
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57 }; |
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58 |
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59 |
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60 void RadiographyWindowingTracker::ComputeAxisEffect(int& deltaCenter, |
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61 int& deltaWidth, |
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62 int delta, |
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63 Action actionNegative, |
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64 Action actionPositive) |
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65 { |
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66 if (delta < 0) |
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67 { |
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68 switch (actionNegative) |
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69 { |
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70 case Action_IncreaseWidth: |
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71 deltaWidth = -delta; |
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72 break; |
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73 |
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74 case Action_DecreaseWidth: |
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75 deltaWidth = delta; |
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76 break; |
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77 |
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78 case Action_IncreaseCenter: |
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79 deltaCenter = -delta; |
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80 break; |
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81 |
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82 case Action_DecreaseCenter: |
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83 deltaCenter = delta; |
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84 break; |
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85 |
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86 default: |
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87 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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88 } |
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89 } |
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90 else if (delta > 0) |
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91 { |
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92 switch (actionPositive) |
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93 { |
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94 case Action_IncreaseWidth: |
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95 deltaWidth = delta; |
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96 break; |
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97 |
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98 case Action_DecreaseWidth: |
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99 deltaWidth = -delta; |
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100 break; |
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101 |
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102 case Action_IncreaseCenter: |
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103 deltaCenter = delta; |
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104 break; |
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105 |
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106 case Action_DecreaseCenter: |
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107 deltaCenter = -delta; |
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108 break; |
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109 |
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110 default: |
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111 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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112 } |
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113 } |
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114 } |
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115 |
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116 |
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117 RadiographyWindowingTracker::RadiographyWindowingTracker(UndoRedoStack& undoRedoStack, |
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118 RadiographyScene& scene, |
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119 RadiographyWidget& widget, |
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120 ImageInterpolation interpolationDuringTracking, |
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121 int x, |
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122 int y, |
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123 Action leftAction, |
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124 Action rightAction, |
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125 Action upAction, |
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126 Action downAction) : |
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127 undoRedoStack_(undoRedoStack), |
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128 scene_(scene), |
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129 widget_(widget), |
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130 initialWidgetInterpolation_(widget.GetInterpolation()), |
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131 clickX_(x), |
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132 clickY_(y), |
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133 leftAction_(leftAction), |
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134 rightAction_(rightAction), |
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135 upAction_(upAction), |
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136 downAction_(downAction) |
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137 { |
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138 scene_.GetWindowingWithDefault(sourceCenter_, sourceWidth_); |
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139 widget_.SetInterpolation(interpolationDuringTracking); |
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140 |
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141 float minValue, maxValue; |
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142 scene.GetRange(minValue, maxValue); |
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143 |
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144 assert(minValue <= maxValue); |
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145 |
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146 float delta = (maxValue - minValue); |
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147 strength_ = delta / 1000.0f; // 1px move will change the ww/wc by 0.1% |
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148 |
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149 if (strength_ < 1) |
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150 { |
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151 strength_ = 1; |
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152 } |
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153 } |
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154 |
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155 |
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156 void RadiographyWindowingTracker::Render(CairoContext& context, |
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157 double zoom) |
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158 { |
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159 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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160 } |
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161 |
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162 |
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163 void RadiographyWindowingTracker::MouseUp() |
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164 { |
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165 widget_.SetInterpolation(initialWidgetInterpolation_); |
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166 undoRedoStack_.Add(new UndoRedoCommand(*this)); |
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167 } |
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168 |
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169 |
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170 void RadiographyWindowingTracker::MouseMove(int displayX, |
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171 int displayY, |
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172 double sceneX, |
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173 double sceneY, |
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174 const std::vector<Deprecated::Touch>& displayTouches, |
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175 const std::vector<Deprecated::Touch>& sceneTouches) |
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176 { |
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177 // This follows the behavior of the Osimis Web viewer: |
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178 // https://bitbucket.org/osimis/osimis-webviewer-plugin/src/master/frontend/src/app/viewport/image-plugins/windowing-viewport-tool.class.js |
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179 |
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180 static const float SCALE = 1.0; |
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181 |
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182 int deltaCenter = 0; |
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183 int deltaWidth = 0; |
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184 |
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185 ComputeAxisEffect(deltaCenter, deltaWidth, displayX - clickX_, leftAction_, rightAction_); |
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186 ComputeAxisEffect(deltaCenter, deltaWidth, displayY - clickY_, upAction_, downAction_); |
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187 |
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188 float newCenter = sourceCenter_ + (deltaCenter / SCALE * strength_); |
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189 float newWidth = sourceWidth_ + (deltaWidth / SCALE * strength_); |
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190 scene_.SetWindowing(newCenter, newWidth); |
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191 } |
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192 } |