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annotate libgui/graphics/SliderControl.cc @ 31639:ca7d58406f82

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eliminate unnecessary uses of octave_qobject in GUI classes * BaseControl.cc, BaseControl.h, ButtonControl.cc, ButtonControl.h, ButtonGroup.cc, ButtonGroup.h, Canvas.cc, Canvas.h, CheckBoxControl.cc, CheckBoxControl.h, Container.cc, Container.h, ContextMenu.cc, ContextMenu.h, EditControl.cc, EditControl.h, Figure.cc, Figure.h, GLCanvas.cc, GLCanvas.h, ListBoxControl.cc, ListBoxControl.h, Menu.cc, Menu.h, Object.cc, Object.h, Panel.cc, Panel.h, PopupMenuControl.cc, PopupMenuControl.h, PushButtonControl.cc, PushButtonControl.h, PushTool.cc, PushTool.h, RadioButtonControl.cc, RadioButtonControl.h, SliderControl.cc, SliderControl.h, Table.cc, Table.h, TextControl.cc, TextControl.h, ToggleButtonControl.cc, ToggleButtonControl.h, ToggleTool.cc, ToggleTool.h, ToolBar.cc, ToolBar.h, ToolBarButton.cc, ToolBarButton.h, annotation-dialog.cc, annotation-dialog.h, qt-graphics-toolkit.cc, qt-graphics-toolkit.h, command-widget.h, community-news.cc, community-news.h, documentation-bookmarks.cc, documentation-bookmarks.h, documentation.cc, external-editor-interface.cc, external-editor-interface.h, find-files-dialog.cc, find-files-dialog.h, graphics-init.cc, graphics-init.h, interpreter-qobject.cc, file-editor.cc, find-dialog.cc, find-dialog.h, main-window.cc, main-window.h, news-reader.cc, news-reader.h, octave-qobject.cc, release-notes.cc, resource-manager.cc, set-path-dialog.cc, set-path-dialog.h, shortcut-manager.cc, shortcut-manager.h, welcome-wizard.cc, welcome-wizard.h, workspace-model.cc: Don't store references to octave_qobject in GUI classes where it is no longer needed. Eliminate unnecessary octave_qobject constructor arguments. Change all uses.
author John W. Eaton <jwe@octave.org>
date Sun, 04 Dec 2022 22:57:02 -0500
parents 796f54d4ddbf
children 431f80aba37a
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2011-2022 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 "graphics.h"
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37 #include "interpreter.h"
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38
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39 #define RANGE_INT_MAX 1000000
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40
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41 namespace octave
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42 {
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43
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44 SliderControl *
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45 SliderControl::create (octave::interpreter& interp,
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46 const graphics_object& go)
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47 {
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48 Object *parent = parentObject (interp, go);
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49
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50 if (parent)
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51 {
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52 Container *container = parent->innerContainer ();
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53
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54 if (container)
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55 return new SliderControl (interp, go,
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56 new QScrollBar (container));
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57 }
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58
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59 return nullptr;
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60 }
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61
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62 SliderControl::SliderControl (octave::interpreter& interp,
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63 const graphics_object& go,
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64 QAbstractSlider *slider)
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65 : BaseControl (interp, go, slider), m_blockUpdates (false)
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66 {
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67 uicontrol::properties& up = properties<uicontrol> ();
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68
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69 slider->setTracking (false);
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70 Matrix bb = up.get_boundingbox ();
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71 bool vertical_slider = ( bb(2) < bb(3) );
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72 slider->setOrientation (vertical_slider ? Qt::Vertical : Qt::Horizontal);
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73 if (vertical_slider)
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74 slider->setInvertedAppearance (true); // Matlab compatibility
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75 Matrix steps = up.get_sliderstep ().matrix_value ();
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76 slider->setMinimum (0);
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77 slider->setMaximum (RANGE_INT_MAX);
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78 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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79 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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80 Matrix value = up.get_value ().matrix_value ();
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81 if (value.numel () > 0)
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82 {
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83 double dmin = up.get_min (), dmax = up.get_max ();
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84
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85 slider->setValue (octave::math::round (((value(0) - dmin) / (dmax - dmin))
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86 * RANGE_INT_MAX));
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87 }
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88
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89 connect (slider, &QAbstractSlider::valueChanged,
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90 this, &SliderControl::valueChanged);
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91 }
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92
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93 SliderControl::~SliderControl (void)
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94 { }
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95
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96 void
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97 SliderControl::update (int pId)
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98 {
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99 uicontrol::properties& up = properties<uicontrol> ();
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100 QScrollBar *slider = qWidget<QScrollBar> ();
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101
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102 switch (pId)
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103 {
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104 case uicontrol::properties::ID_SLIDERSTEP:
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105 {
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106 Matrix steps = up.get_sliderstep ().matrix_value ();
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107
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108 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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109 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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110 }
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111 break;
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112
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113 case uicontrol::properties::ID_VALUE:
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114 {
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115 Matrix value = up.get_value ().matrix_value ();
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116 double dmax = up.get_max (), dmin = up.get_min ();
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117
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118 if (value.numel () > 0)
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119 {
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120 int ival = octave::math::round (((value(0) - dmin) / (dmax - dmin))
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121 * RANGE_INT_MAX);
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122
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123 m_blockUpdates = true;
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124 slider->setValue (ival);
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125 m_blockUpdates = false;
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126 }
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127 }
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128 break;
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129
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130 default:
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131 BaseControl::update (pId);
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132 break;
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133 }
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134 }
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135
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136 void
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137 SliderControl::valueChanged (int ival)
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138 {
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139 if (! m_blockUpdates)
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140 {
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141 gh_manager& gh_mgr = m_interpreter.get_gh_manager ();
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142
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143 octave::autolock guard (gh_mgr.graphics_lock ());
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144
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145 graphics_object go = object ();
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146
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147 if (go.valid_object ())
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148 {
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149 uicontrol::properties& up = Utils::properties<uicontrol> (go);
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150
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151 Matrix value = up.get_value ().matrix_value ();
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152 double dmin = up.get_min (), dmax = up.get_max ();
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153
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154 int ival_tmp = (value.numel () > 0 ?
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155 octave::math::round (((value(0) - dmin) / (dmax - dmin))
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156 * RANGE_INT_MAX) :
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157 0);
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158
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159 if (ival != ival_tmp || value.numel () > 0)
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160 {
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161 double dval = dmin + (ival * (dmax - dmin) / RANGE_INT_MAX);
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162
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163 emit gh_set_event (m_handle, "value", octave_value (dval));
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164 emit gh_callback_event (m_handle, "callback");
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165 }
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166 }
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167 }
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168 }
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169
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170 }