Mercurial > octave
annotate libgui/graphics/SliderControl.cc @ 26376:00f796120a6d stable
maint: Update copyright dates in all source files.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 02 Jan 2019 16:32:43 -0500 |
parents | 6652d3823428 |
children | 6b2d20317b26 |
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1 /* |
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2 |
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3 Copyright (C) 2011-2019 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 <https://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 } |