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annotate libgui/graphics/SliderControl.cc @ 30398:d4d83344d653 stable

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maint: style check C++ files in src/ and libgui/ ahead of 7.1 release. * ButtonGroup.cc, Canvas.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, EditControl.cc, Figure.cc, Figure.h, FigureWindow.cc, GenericEventNotify.h, ListBoxControl.cc, ListBoxControl.h, Logger.cc, Menu.cc, Object.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, RadioButtonControl.cc, SliderControl.cc, Table.cc, Table.h, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, annotation-dialog.cc, qt-graphics-toolkit.cc, documentation-bookmarks.cc, documentation-bookmarks.h, documentation-dock-widget.h, documentation.cc, documentation.h, dw-main-window.h, files-dock-widget.cc, files-dock-widget.h, find-files-dialog.cc, find-files-model.cc, gui-preferences-dw.h, gui-preferences-ed.h, gui-preferences-global.h, gui-settings.h, interpreter-qobject.cc, led-indicator.cc, file-editor-interface.h, file-editor-tab.cc, file-editor-tab.h, file-editor.cc, file-editor.h, find-dialog.cc, find-dialog.h, marker.cc, octave-qscintilla.cc, octave-qscintilla.h, main-window.cc, main-window.h, octave-dock-widget.cc, octave-dock-widget.h, octave-qobject.cc, octave-qobject.h, octave-qtutils.h, qt-interpreter-events.cc, release-notes.cc, resource-manager.cc, set-path-dialog.cc, settings-dialog.cc, settings-dialog.h, shortcut-manager.cc, shortcut-manager.h, tab-bar.cc, tab-bar.h, variable-editor-model.cc, variable-editor-model.h, variable-editor.cc, variable-editor.h, workspace-model.cc, workspace-view.cc, mkoctfile.in.cc, octave-config.in.cc: Style check C++ files in src/ and libgui/ ahead of 7.1 release.
author Rik <rik@octave.org>
date Mon, 29 Nov 2021 15:58:51 -0800
parents 6ea4a84df9c7
children 796f54d4ddbf
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2011-2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <QScrollBar>
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31
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32 #include "Container.h"
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33 #include "SliderControl.h"
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34 #include "QtHandlesUtils.h"
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35
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36 #include "octave-qobject.h"
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37
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38 #include "graphics.h"
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39 #include "interpreter.h"
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40
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41 #define RANGE_INT_MAX 1000000
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42
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43 namespace octave
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44 {
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45
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46 SliderControl *
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47 SliderControl::create (octave::base_qobject& oct_qobj,
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48 octave::interpreter& interp,
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49 const graphics_object& go)
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50 {
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51 Object *parent = parentObject (interp, go);
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52
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53 if (parent)
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54 {
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55 Container *container = parent->innerContainer ();
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56
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57 if (container)
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58 return new SliderControl (oct_qobj, interp, go,
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59 new QScrollBar (container));
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60 }
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61
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62 return nullptr;
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63 }
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64
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65 SliderControl::SliderControl (octave::base_qobject& oct_qobj,
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66 octave::interpreter& interp,
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67 const graphics_object& go,
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68 QAbstractSlider *slider)
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69 : BaseControl (oct_qobj, interp, go, slider), m_blockUpdates (false)
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70 {
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71 uicontrol::properties& up = properties<uicontrol> ();
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72
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73 slider->setTracking (false);
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74 Matrix bb = up.get_boundingbox ();
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75 bool vertical_slider = ( bb(2) < bb(3) );
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76 slider->setOrientation (vertical_slider ? Qt::Vertical : Qt::Horizontal);
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77 if (vertical_slider)
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78 slider->setInvertedAppearance (true); // Matlab compatibility
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79 Matrix steps = up.get_sliderstep ().matrix_value ();
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80 slider->setMinimum (0);
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81 slider->setMaximum (RANGE_INT_MAX);
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82 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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83 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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84 Matrix value = up.get_value ().matrix_value ();
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85 if (value.numel () > 0)
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86 {
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87 double dmin = up.get_min (), dmax = up.get_max ();
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88
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89 slider->setValue (octave::math::round (((value(0) - dmin) / (dmax - dmin))
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90 * RANGE_INT_MAX));
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91 }
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92
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93 connect (slider, &QAbstractSlider::valueChanged,
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94 this, &SliderControl::valueChanged);
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95 }
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96
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97 SliderControl::~SliderControl (void)
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98 { }
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99
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100 void
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101 SliderControl::update (int pId)
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102 {
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103 uicontrol::properties& up = properties<uicontrol> ();
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104 QScrollBar *slider = qWidget<QScrollBar> ();
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105
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106 switch (pId)
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107 {
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108 case uicontrol::properties::ID_SLIDERSTEP:
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109 {
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110 Matrix steps = up.get_sliderstep ().matrix_value ();
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111
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112 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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113 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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114 }
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115 break;
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116
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117 case uicontrol::properties::ID_VALUE:
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118 {
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119 Matrix value = up.get_value ().matrix_value ();
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120 double dmax = up.get_max (), dmin = up.get_min ();
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121
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122 if (value.numel () > 0)
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123 {
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124 int ival = octave::math::round (((value(0) - dmin) / (dmax - dmin))
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125 * RANGE_INT_MAX);
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126
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127 m_blockUpdates = true;
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128 slider->setValue (ival);
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129 m_blockUpdates = false;
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130 }
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131 }
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132 break;
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133
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134 default:
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135 BaseControl::update (pId);
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136 break;
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137 }
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138 }
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139
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140 void
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141 SliderControl::valueChanged (int ival)
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142 {
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143 if (! m_blockUpdates)
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144 {
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145 gh_manager& gh_mgr = m_interpreter.get_gh_manager ();
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146
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147 octave::autolock guard (gh_mgr.graphics_lock ());
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148
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149 graphics_object go = object ();
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150
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151 if (go.valid_object ())
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152 {
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153 uicontrol::properties& up = Utils::properties<uicontrol> (go);
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154
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155 Matrix value = up.get_value ().matrix_value ();
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156 double dmin = up.get_min (), dmax = up.get_max ();
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157
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158 int ival_tmp = (value.numel () > 0 ?
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159 octave::math::round (((value(0) - dmin) / (dmax - dmin))
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160 * RANGE_INT_MAX) :
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161 0);
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162
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163 if (ival != ival_tmp || value.numel () > 0)
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164 {
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165 double dval = dmin + (ival * (dmax - dmin) / RANGE_INT_MAX);
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166
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167 emit gh_set_event (m_handle, "value", octave_value (dval));
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168 emit gh_callback_event (m_handle, "callback");
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169 }
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170 }
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171 }
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172 }
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173
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174 }