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annotate libgui/graphics/SliderControl.cc @ 27919:1891570abac8

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2020.
author John W. Eaton <jwe@octave.org>
date Mon, 06 Jan 2020 22:29:51 -0500
parents b442ec6dda5c
children bd51beb6205e
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1 /*
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2
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3 Copyright (C) 2011-2020 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 distribution
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6 or <https://octave.org/COPYRIGHT.html/>.
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7
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8
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9 This file is part of Octave.
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10
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11 Octave is free software: you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by
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13 the Free Software Foundation, either version 3 of the License, or
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14 (at your option) any later version.
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15
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16 Octave is distributed in the hope that it will be useful, but
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17 WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with Octave; see the file COPYING. If not, see
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23 <https://www.gnu.org/licenses/>.
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24
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25 */
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26
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27 #if defined (HAVE_CONFIG_H)
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28 # include "config.h"
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29 #endif
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30
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31 #include <QScrollBar>
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32
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33 #include "Container.h"
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34 #include "SliderControl.h"
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35 #include "QtHandlesUtils.h"
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36
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37 #include "octave-qobject.h"
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38
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39 #include "graphics.h"
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40 #include "interpreter.h"
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41
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42 #define RANGE_INT_MAX 1000000
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43
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44 namespace QtHandles
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45 {
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46
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47 SliderControl*
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48 SliderControl::create (octave::base_qobject& oct_qobj,
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49 octave::interpreter& interp,
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50 const graphics_object& go)
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51 {
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52 Object *parent = parentObject (interp, go);
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53
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54 if (parent)
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55 {
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56 Container *container = parent->innerContainer ();
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57
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58 if (container)
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59 return new SliderControl (oct_qobj, interp, go,
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60 new QScrollBar (container));
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61 }
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62
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63 return nullptr;
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64 }
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65
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66 SliderControl::SliderControl (octave::base_qobject& oct_qobj,
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67 octave::interpreter& interp,
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68 const graphics_object& go,
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69 QAbstractSlider *slider)
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70 : BaseControl (oct_qobj, interp, go, slider), m_blockUpdates (false)
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71 {
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72 uicontrol::properties& up = properties<uicontrol> ();
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73
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74 slider->setTracking (false);
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75 Matrix bb = up.get_boundingbox ();
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76 bool vertical_slider = ( bb(2) < bb(3) );
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77 slider->setOrientation (vertical_slider ? Qt::Vertical : Qt::Horizontal);
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78 if (vertical_slider)
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79 slider->setInvertedAppearance (true); // Matlab compatibility
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80 Matrix steps = up.get_sliderstep ().matrix_value ();
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81 slider->setMinimum (0);
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82 slider->setMaximum (RANGE_INT_MAX);
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83 slider->setSingleStep (octave::math::round (steps(0) * RANGE_INT_MAX));
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84 slider->setPageStep (octave::math::round (steps(1) * RANGE_INT_MAX));
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85 Matrix value = up.get_value ().matrix_value ();
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86 if (value.numel () > 0)
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87 {
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88 double dmin = up.get_min (), dmax = up.get_max ();
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89
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90 slider->setValue (octave::math::round (((value(0) - dmin) / (dmax - dmin))
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91 * RANGE_INT_MAX));
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92 }
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93
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94 connect (slider, SIGNAL (valueChanged (int)), SLOT (valueChanged (int)));
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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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parents: 18692
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144 {
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2a506bc4a7af eliminate global access to Octave interpreter in qt graphics classes
John W. Eaton <jwe@octave.org>
parents: 27645
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145 gh_manager& gh_mgr = m_interpreter.get_gh_manager ();
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50216d7a2f6b eliminate static wrapper functions in gh_manager class
John W. Eaton <jwe@octave.org>
parents: 27319
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146
50216d7a2f6b eliminate static wrapper functions in gh_manager class
John W. Eaton <jwe@octave.org>
parents: 27319
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147 octave::autolock guard (gh_mgr.graphics_lock ());
50216d7a2f6b eliminate static wrapper functions in gh_manager class
John W. Eaton <jwe@octave.org>
parents: 27319
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148
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Rik <rik@octave.org>
parents: 22323
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149 graphics_object go = object ();
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2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
parents:
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150
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Rik <rik@octave.org>
parents: 22323
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151 if (go.valid_object ())
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3cc0734283dc style fixes in Qt graphics code
John W. Eaton <jwe@octave.org>
parents: 18692
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152 {
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Rik <rik@octave.org>
parents: 22323
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153 uicontrol::properties& up = Utils::properties<uicontrol> (go);
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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154
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Rik <rik@octave.org>
parents: 22323
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155 Matrix value = up.get_value ().matrix_value ();
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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156 double dmin = up.get_min (), dmax = up.get_max ();
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John W. Eaton <jwe@octave.org>
parents:
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157
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Rik <rik@octave.org>
parents: 22323
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158 int ival_tmp = (value.numel () > 0 ?
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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159 octave::math::round (((value(0) - dmin) / (dmax - dmin))
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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160 * RANGE_INT_MAX) :
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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161 0);
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Rik <rik@octave.org>
parents: 22323
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162
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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163 if (ival != ival_tmp || value.numel () > 0)
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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164 {
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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165 double dval = dmin + (ival * (dmax - dmin) / RANGE_INT_MAX);
c69805d1fa64 maint: Style check C++ code in libgui/
Rik <rik@octave.org>
parents: 22323
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166
27319
6b2d20317b26 use Qt signals to manage calls to gh_manager functions in Qt graphics toolkit
John W. Eaton <jwe@octave.org>
parents: 26376
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167 emit gh_set_event (m_handle, "value", octave_value (dval));
6b2d20317b26 use Qt signals to manage calls to gh_manager functions in Qt graphics toolkit
John W. Eaton <jwe@octave.org>
parents: 26376
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168 emit gh_callback_event (m_handle, "callback");
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Rik <rik@octave.org>
parents: 22323
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169 }
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3cc0734283dc style fixes in Qt graphics code
John W. Eaton <jwe@octave.org>
parents: 18692
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170 }
3cc0734283dc style fixes in Qt graphics code
John W. Eaton <jwe@octave.org>
parents: 18692
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171 }
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Rik <rik@octave.org>
parents: 22323
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172 }
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John W. Eaton <jwe@octave.org>
parents:
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173
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Rik <rik@octave.org>
parents: 22411
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174 }