Mercurial > octave
annotate libgui/graphics/SliderControl.cc @ 30899:48ef5fabe9b7
maint: Use "fcn" as preferred abbreviation for "function" in libgui/.
* Logger.cc, qopengl-functions.h:
Replace "func", "fun" in variable names with "fcn".
author | Rik <rik@octave.org> |
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date | Tue, 05 Apr 2022 13:33:39 -0700 |
parents | 796f54d4ddbf |
children | ca7d58406f82 c6d54dd31a7e |
rev | line source |
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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 "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 } |