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annotate libgui/graphics/SliderControl.cc @ 23795:980f39c3ab90

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Use C++11 nullptr rather than 0 in code (bug #51565). * Backend.cc, BaseControl.h, ButtonGroup.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, ContextMenu.h, EditControl.cc, Figure.cc, FigureWindow.cc, ListBoxControl.cc, Menu.cc, Menu.h, MouseModeActionGroup.cc, Object.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, RadioButtonControl.cc, SliderControl.cc, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBar.h, ToolBarButton.cc, ToolBarButton.h, QTerminal.h, BlockArray.cpp, Emulation.cpp, Filter.cpp, Filter.h, History.cpp, KeyboardTranslator.cpp, QUnixTerminalImpl.h, Screen.cpp, ScreenWindow.cpp, ScreenWindow.h, SelfListener.h, TerminalCharacterDecoder.cpp, TerminalModel.cpp, TerminalView.cpp, TerminalView.h, kpty.cpp, dialog.cc, dialog.h, files-dock-widget.cc, find-files-model.h, file-editor-tab.cc, file-editor.cc, main-window.cc, octave-dock-widget.cc, octave-gui.cc, parser.cc, resource-manager.cc, resource-manager.h, shortcut-manager.cc, shortcut-manager.h, workspace-model.cc, workspace-view.cc, __magick_read__.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h, daspk.cc, dasrt.cc, dassl.cc, det.cc, display.h, error.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc, graphics.in.h, help.cc, input.cc, interpreter.cc, load-path.cc, load-save.cc, ls-hdf5.cc, ls-hdf5.h, ls-mat5.cc, lsode.cc, mex.cc, mxarray.in.h, oct-errno.h, oct-hist.cc, oct-iostrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, oct-tex-parser.in.yy, octave-link.h, pager.cc, pager.h, pr-output.cc, procstream.h, qz.cc, sighandlers.cc, svd.cc, symtab.cc, symtab.h, text-renderer.cc, txt-eng.h, utils.cc, variables.cc, zfstream.cc, zfstream.h, __glpk__.cc, __init_fltk__.cc, __ode15__.cc, audiodevinfo.cc, ccolamd.cc, colamd.cc, dmperm.cc, gzip.cc, symbfact.cc, ov-base-int.cc, ov-base-int.h, ov-base-mat.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.h, ov-cell.cc, ov-class.cc, ov-complex.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.cc, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-mex-fcn.cc, ov-oncleanup.cc, ov-range.cc, ov-range.h, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, bp-table.cc, bp-table.h, jit-ir.h, jit-typeinfo.cc, lex.h, profiler.cc, pt-arg-list.cc, pt-array-list.cc, pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-cell.cc, pt-classdef.cc, pt-classdef.h, pt-colon.cc, pt-colon.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-idx.cc, pt-jit.cc, pt-loop.h, pt-mat.cc, pt-select.h, pt-stmt.h, pt-tm-const.h, pt-unop.cc, pt-unop.h, pt.cc, Array-C.cc, Array-d.cc, Array-f.cc, Array-fC.cc, Array-util.cc, Array.cc, Array.h, CMatrix.cc, CSparse.cc, DiagArray2.h, MArray.h, MDiagArray2.h, MatrixType.cc, Sparse.cc, Sparse.h, dMatrix.cc, dSparse.cc, fMatrix.cc, idx-vector.cc, idx-vector.h, DAEFunc.h, DAERTFunc.h, ODEFunc.h, ODESFunc.h, eigs-base.cc, oct-fftw.cc, oct-fftw.h, oct-rand.h, oct-spparms.h, schur.cc, sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, lo-sysdep.cc, oct-env.h, oct-time.cc, cmd-edit.cc, cmd-edit.h, cmd-hist.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sort.h, quit.cc, singleton-cleanup.h, str-vec.cc: Use C++11 nullptr rather than 0 in code (bug #51565).
author Rik <rik@octave.org>
date Tue, 25 Jul 2017 14:54:10 -0700
parents c763214a8260
children 194eb4bd202b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2
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3 Copyright (C) 2011-2017 Michael Goffioul
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave 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
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15 GNU 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 General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if defined (HAVE_CONFIG_H)
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24 # include "config.h"
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25 #endif
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26
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27 #include <QScrollBar>
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28
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29 #include "Container.h"
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30 #include "SliderControl.h"
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31 #include "QtHandlesUtils.h"
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32
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33 #define RANGE_INT_MAX 1000000
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34
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35 namespace QtHandles
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36 {
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37
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38 SliderControl*
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39 SliderControl::create (const graphics_object& go)
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40 {
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41 Object *parent = Object::parentObject (go);
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42
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43 if (parent)
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44 {
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45 Container *container = parent->innerContainer ();
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46
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47 if (container)
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48 return new SliderControl (go, new QScrollBar (container));
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49 }
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50
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51 return nullptr;
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52 }
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53
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54 SliderControl::SliderControl (const graphics_object& go,
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55 QAbstractSlider *slider)
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56 : BaseControl (go, slider), m_blockUpdates (false)
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57 {
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58 uicontrol::properties& up = properties<uicontrol> ();
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59
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60 slider->setTracking (false);
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61 Matrix bb = up.get_boundingbox ();
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62 bool vertical_slider = ( bb(2) < bb(3) );
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63 slider->setOrientation (vertical_slider ? Qt::Vertical : Qt::Horizontal);
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64 if (vertical_slider)
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65 slider->setInvertedAppearance (true); // Matlab compatibility
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66 Matrix steps = up.get_sliderstep ().matrix_value ();
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67 slider->setMinimum (0);
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68 slider->setMaximum (RANGE_INT_MAX);
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69 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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70 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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71 Matrix value = up.get_value ().matrix_value ();
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72 if (value.numel () > 0)
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73 {
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74 double dmin = up.get_min (), dmax = up.get_max ();
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75
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76 slider->setValue (octave::math::round (((value(0) - dmin) / (dmax - dmin))
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77 * RANGE_INT_MAX));
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78 }
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79
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80 connect (slider, SIGNAL (valueChanged (int)), SLOT (valueChanged (int)));
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81 }
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82
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83 SliderControl::~SliderControl (void)
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84 { }
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85
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86 void
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87 SliderControl::update (int pId)
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88 {
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89 uicontrol::properties& up = properties<uicontrol> ();
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90 QScrollBar *slider = qWidget<QScrollBar> ();
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91
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92 switch (pId)
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93 {
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94 case uicontrol::properties::ID_SLIDERSTEP:
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95 {
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96 Matrix steps = up.get_sliderstep ().matrix_value ();
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97
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98 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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99 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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100 }
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101 break;
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102
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103 case uicontrol::properties::ID_VALUE:
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104 {
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105 Matrix value = up.get_value ().matrix_value ();
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106 double dmax = up.get_max (), dmin = up.get_min ();
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107
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108 if (value.numel () > 0)
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109 {
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110 int ival = octave::math::round (((value(0) - dmin) / (dmax - dmin))
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111 * RANGE_INT_MAX);
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112
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113 m_blockUpdates = true;
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114 slider->setValue (ival);
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115 m_blockUpdates = false;
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116 }
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117 }
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118 break;
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119
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120 default:
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121 BaseControl::update (pId);
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122 break;
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123 }
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124 }
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125
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126 void
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127 SliderControl::valueChanged (int ival)
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128 {
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129 if (! m_blockUpdates)
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130 {
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131 gh_manager::auto_lock lock;
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132 graphics_object go = object ();
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133
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134 if (go.valid_object ())
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135 {
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136 uicontrol::properties& up = Utils::properties<uicontrol> (go);
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137
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138 Matrix value = up.get_value ().matrix_value ();
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139 double dmin = up.get_min (), dmax = up.get_max ();
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140
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141 int ival_tmp = (value.numel () > 0 ?
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142 octave::math::round (((value(0) - dmin) / (dmax - dmin))
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143 * RANGE_INT_MAX) :
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144 0);
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145
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146 if (ival != ival_tmp || value.numel () > 0)
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147 {
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148 double dval = dmin + (ival * (dmax - dmin) / RANGE_INT_MAX);
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149
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150 gh_manager::post_set (m_handle, "value", octave_value (dval));
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151 gh_manager::post_callback (m_handle, "callback");
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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
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157 }