Mercurial > octave-nkf
annotate libgui/graphics/ListBoxControl.cc @ 20038:f0e61a67ad9f
Update copyright year in Qt graphics code.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 20 Mar 2015 16:18:10 -0400 |
parents | 3cc0734283dc |
children | 7d8ec197b08b |
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1 /* |
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2 |
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3 Copyright (C) 2011-2015 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 the |
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9 Free Software Foundation; either version 3 of the License, or (at your |
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10 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 WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 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 #ifdef 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 <QListWidget> |
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28 |
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29 #include "Container.h" |
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30 #include "ListBoxControl.h" |
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31 #include "QtHandlesUtils.h" |
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32 |
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33 namespace QtHandles |
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34 { |
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35 |
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36 static void |
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37 updateSelection (QListWidget* list, const Matrix& value) |
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38 { |
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39 octave_idx_type n = value.numel (); |
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40 int lc = list->count (); |
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41 |
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42 list->clearSelection (); |
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43 |
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44 for (octave_idx_type i = 0; i < n; i++) |
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45 { |
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46 int idx = xround (value(i)); |
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47 |
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48 if (1 <= idx && idx <= lc) |
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49 { |
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50 list->item (idx-1)->setSelected (true); |
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51 if (i == 0 |
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52 && list->selectionMode () == QAbstractItemView::SingleSelection) |
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53 break; |
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54 } |
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55 else |
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56 { |
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57 // Invalid selection. |
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58 list->clearSelection (); |
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59 break; |
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60 } |
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61 } |
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62 } |
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63 |
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64 ListBoxControl* |
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65 ListBoxControl::create (const graphics_object& go) |
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66 { |
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67 Object* parent = Object::parentObject (go); |
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68 |
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69 if (parent) |
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70 { |
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71 Container* container = parent->innerContainer (); |
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72 |
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73 if (container) |
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74 return new ListBoxControl (go, new QListWidget (container)); |
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75 } |
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76 |
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77 return 0; |
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78 } |
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79 |
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80 ListBoxControl::ListBoxControl (const graphics_object& go, QListWidget* list) |
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81 : BaseControl (go, list), m_blockCallback (false) |
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82 { |
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83 uicontrol::properties& up = properties<uicontrol> (); |
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84 |
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85 list->addItems (Utils::fromStringVector (up.get_string_vector ())); |
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86 if ((up.get_max () - up.get_min ()) > 1) |
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87 list->setSelectionMode (QAbstractItemView::ExtendedSelection); |
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88 else |
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89 list->setSelectionMode (QAbstractItemView::SingleSelection); |
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90 Matrix value = up.get_value ().matrix_value (); |
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91 if (value.numel () > 0) |
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92 { |
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93 octave_idx_type n = value.numel (); |
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94 int lc = list->count (); |
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95 |
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96 for (octave_idx_type i = 0; i < n; i++) |
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97 { |
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98 int idx = xround (value(i)); |
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99 |
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100 if (1 <= idx && idx <= lc) |
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101 { |
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102 list->item (idx-1)->setSelected (true); |
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103 if (i == 0 && (list->selectionMode () |
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104 == QAbstractItemView::SingleSelection)) |
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105 break; |
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106 } |
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107 } |
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108 } |
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109 |
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110 list->removeEventFilter (this); |
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111 list->viewport ()->installEventFilter (this); |
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112 |
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113 connect (list, SIGNAL (itemSelectionChanged (void)), |
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114 SLOT (itemSelectionChanged (void))); |
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115 } |
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116 |
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117 ListBoxControl::~ListBoxControl (void) |
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118 { |
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119 } |
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120 |
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121 void |
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122 ListBoxControl::update (int pId) |
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123 { |
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124 uicontrol::properties& up = properties<uicontrol> (); |
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125 QListWidget* list = qWidget<QListWidget> (); |
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126 |
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127 switch (pId) |
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128 { |
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129 case uicontrol::properties::ID_STRING: |
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130 m_blockCallback = true; |
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131 list->clear (); |
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132 list->addItems (Utils::fromStringVector (up.get_string_vector ())); |
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133 updateSelection (list, up.get_value ().matrix_value ()); |
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134 m_blockCallback = false; |
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135 break; |
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136 |
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137 case uicontrol::properties::ID_MIN: |
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138 |
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139 case uicontrol::properties::ID_MAX: |
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140 if ((up.get_max () - up.get_min ()) > 1) |
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141 list->setSelectionMode (QAbstractItemView::ExtendedSelection); |
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142 else |
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143 list->setSelectionMode (QAbstractItemView::SingleSelection); |
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144 break; |
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145 |
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146 case uicontrol::properties::ID_VALUE: |
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147 m_blockCallback = true; |
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148 updateSelection (list, up.get_value ().matrix_value ()); |
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149 m_blockCallback = false; |
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150 break; |
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151 |
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152 default: |
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153 BaseControl::update (pId); |
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154 break; |
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155 } |
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156 } |
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157 |
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158 void |
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159 ListBoxControl::itemSelectionChanged (void) |
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160 { |
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161 if (! m_blockCallback) |
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162 { |
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163 QListWidget* list = qWidget<QListWidget> (); |
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164 |
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165 QModelIndexList l = list->selectionModel ()->selectedIndexes (); |
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166 Matrix value (dim_vector (1, l.size ())); |
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167 int i = 0; |
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168 |
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169 foreach (const QModelIndex& idx, l) |
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170 value(i++) = (idx.row () + 1); |
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171 |
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172 gh_manager::post_set (m_handle, "value", octave_value (value), false); |
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173 gh_manager::post_callback (m_handle, "callback"); |
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174 } |
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175 } |
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176 |
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177 }; // namespace QtHandles |