Mercurial > octave
annotate libgui/src/workspace-model.cc @ 27033:c76dd670a7a5
automatic selection of foreground color in worspace view (bug #53995)
* workspace-model.cc (workspace_model): initialize the color list extended
by the foreground colors;
(data): return the related foreground color when the foreground role
id requested;
(notice_settings): get suitable foreground colors for special storage
classes based on the given background colors from the preferences by
means of QPalette
* workspace-view.cc (notice_settings): also take determined foreground
colors of special storage classes for building the tool tip
author | Torsten Lilge <ttl-octave@mailbox.org> |
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date | Sun, 07 Apr 2019 20:16:27 +0200 |
parents | ab3babe4ea25 |
children | 0fe52ad36b24 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2013-2019 John W. Eaton |
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4 Copyright (C) 2011-2019 Jacob Dawid |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software: you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation, either version 3 of the License, or |
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11 (at your option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <https://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if defined (HAVE_CONFIG_H) |
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25 # include "config.h" |
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26 #endif |
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27 |
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28 #include <iostream> |
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30 #include <QTreeWidget> |
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31 #include <QSettings> |
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32 |
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33 #include "syminfo.h" |
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34 #include "utils.h" |
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35 |
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36 #include "resource-manager.h" |
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37 #include "gui-preferences.h" |
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38 #include "workspace-model.h" |
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39 |
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40 namespace octave |
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41 { |
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42 workspace_model::workspace_model (QObject *p) |
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43 : QAbstractTableModel (p) |
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44 { |
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45 m_columnNames.append (tr ("Name")); |
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46 m_columnNames.append (tr ("Class")); |
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47 m_columnNames.append (tr ("Dimension")); |
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48 m_columnNames.append (tr ("Value")); |
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49 m_columnNames.append (tr ("Attribute")); |
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50 |
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51 // Initialize the bachground and foreground colors of special |
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52 // classes in the workspace view. The structure is |
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53 // m_storage_class_colors(1,2,...,colors): background colors |
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54 // m_storage_class_colors(colors+1,...,2*colors): foreground colors |
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55 int colors = resource_manager::storage_class_chars ().length (); |
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56 for (int i = 0; i < 2*colors; i++) |
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57 m_storage_class_colors.append (QColor (Qt::white)); |
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58 |
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59 } |
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60 |
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61 QList<QColor> |
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62 workspace_model::storage_class_default_colors (void) |
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63 { |
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64 QList<QColor> colors; |
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65 |
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66 if (colors.isEmpty ()) |
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67 { |
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68 colors << QColor (190, 255, 255) |
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69 << QColor (255, 255, 190) |
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70 << QColor (255, 190, 255); |
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71 } |
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72 |
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73 return colors; |
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74 } |
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75 |
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76 QStringList |
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77 workspace_model::storage_class_names (void) |
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78 { |
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79 QStringList names; |
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80 |
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81 if (names.isEmpty ()) |
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82 { |
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83 names << QObject::tr ("argument") |
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84 << QObject::tr ("global") |
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85 << QObject::tr ("persistent"); |
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86 } |
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87 |
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88 return names; |
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89 } |
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90 |
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91 int |
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92 workspace_model::rowCount (const QModelIndex&) const |
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93 { |
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94 return m_symbols.size (); |
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95 } |
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96 |
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97 int |
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98 workspace_model::columnCount (const QModelIndex&) const |
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99 { |
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100 return m_columnNames.size (); |
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101 } |
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102 |
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103 Qt::ItemFlags |
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104 workspace_model::flags (const QModelIndex& idx) const |
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105 { |
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106 Qt::ItemFlags retval = Qt::NoItemFlags; |
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107 |
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108 if (idx.isValid ()) |
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109 { |
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110 retval |= Qt::ItemIsEnabled; |
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111 |
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112 if (m_top_level && idx.column () == 0) |
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113 retval |= Qt::ItemIsSelectable; |
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114 } |
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115 |
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116 return retval; |
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117 } |
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118 |
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119 QVariant |
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120 workspace_model::headerData (int section, Qt::Orientation orientation, |
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121 int role) const |
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122 { |
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123 if (orientation == Qt::Horizontal && role == Qt::DisplayRole) |
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124 return m_columnNames[section]; |
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125 else |
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126 return QVariant (); |
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127 } |
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128 |
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129 QVariant |
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130 workspace_model::data (const QModelIndex& idx, int role) const |
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131 { |
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132 QVariant retval; |
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133 |
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134 if (idx.isValid ()) |
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135 { |
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136 if ((role == Qt::BackgroundColorRole || role == Qt::ForegroundRole) |
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137 && m_enable_colors) |
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138 { |
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139 QString class_chars = resource_manager::storage_class_chars (); |
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140 int actual_class |
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141 = class_chars.indexOf (m_scopes[idx.row ()].toLatin1 ()); |
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142 if (actual_class >= 0) |
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143 { |
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144 // Valid class: Get backgorund (normal indexes) or foreground |
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145 // color (indexes with offset) |
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146 if (role == Qt::ForegroundRole) |
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147 actual_class += class_chars.length (); |
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148 |
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149 return QVariant (m_storage_class_colors.at (actual_class)); |
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150 } |
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151 else |
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152 return retval; |
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153 } |
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154 |
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155 if (role == Qt::DisplayRole |
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156 || (idx.column () == 0 && role == Qt::EditRole) |
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157 || (idx.column () == 0 && role == Qt::ToolTipRole)) |
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158 { |
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159 switch (idx.column ()) |
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160 { |
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161 case 0: |
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162 if (role == Qt::ToolTipRole) |
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163 retval |
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164 = QVariant (tr ("Right click to copy, rename, or display")); |
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165 else |
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166 retval = QVariant (m_symbols[idx.row ()]); |
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167 break; |
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168 |
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169 case 1: |
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170 retval = QVariant (m_class_names[idx.row ()]); |
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171 break; |
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172 |
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173 case 2: |
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174 retval = QVariant (m_dimensions[idx.row ()]); |
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175 break; |
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176 |
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177 case 3: |
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178 retval = QVariant (m_values[idx.row ()]); |
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179 break; |
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180 |
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181 case 4: |
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182 { |
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183 QString sclass; |
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184 |
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185 QString class_chars = resource_manager::storage_class_chars (); |
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186 |
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187 int actual_class |
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188 = class_chars.indexOf (m_scopes[idx.row ()].toLatin1 ()); |
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189 |
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190 if (actual_class >= 0) |
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191 { |
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192 QStringList class_names |
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193 = resource_manager::storage_class_names (); |
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194 |
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195 sclass = class_names.at (actual_class); |
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196 } |
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197 |
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198 if (m_complex_flags[idx.row ()]) |
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199 { |
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200 if (sclass.isEmpty ()) |
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201 sclass = tr ("complex"); |
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202 else |
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203 sclass += ", " + tr ("complex"); |
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204 } |
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205 |
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206 retval = QVariant (sclass); |
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207 } |
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208 break; |
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209 } |
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210 } |
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211 } |
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212 |
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213 return retval; |
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214 } |
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215 |
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216 bool |
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217 workspace_model::setData (const QModelIndex& idx, const QVariant& value, |
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218 int role) |
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219 { |
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220 bool retval = false; |
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221 |
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222 if (idx.column () == 0 && role == Qt::EditRole) |
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223 { |
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224 QString qold_name = m_symbols[idx.row ()]; |
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225 |
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226 QString qnew_name = value.toString (); |
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227 |
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228 std::string new_name = qnew_name.toStdString (); |
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229 |
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230 if (valid_identifier (new_name)) |
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231 { |
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232 emit rename_variable (qold_name, qnew_name); |
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233 |
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234 retval = true; |
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235 } |
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236 } |
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237 |
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238 return retval; |
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239 } |
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240 |
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241 void |
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242 workspace_model::set_workspace (bool top_level, bool /* debug */, |
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243 const symbol_info_list& syminfo) |
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244 { |
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245 clear_data (); |
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246 |
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247 m_top_level = top_level; |
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248 m_syminfo_list = syminfo; |
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249 |
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250 update_table (); |
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251 } |
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252 |
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253 void |
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254 workspace_model::clear_workspace (void) |
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255 { |
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256 clear_data (); |
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257 update_table (); |
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258 } |
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259 |
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260 void |
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261 workspace_model::notice_settings (const QSettings *settings) |
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262 { |
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263 QList<QColor> default_colors = |
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264 resource_manager::storage_class_default_colors (); |
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265 QString class_chars = resource_manager::storage_class_chars (); |
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266 |
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267 m_enable_colors = |
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268 settings->value (ws_enable_colors.key, ws_enable_colors.key).toBool (); |
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269 |
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270 for (int i = 0; i < class_chars.length (); i++) |
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271 { |
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272 QVariant default_var = default_colors.at (i); |
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273 QColor setting_color = settings->value ("workspaceview/color_" |
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274 + class_chars.mid (i,1), |
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275 default_var).value<QColor> (); |
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276 |
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277 QPalette p (setting_color); |
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278 m_storage_class_colors.replace (i,setting_color); |
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279 |
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280 QColor fg_color = p.color (QPalette::WindowText); |
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281 m_storage_class_colors.replace (i + class_chars.length (), fg_color); |
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282 |
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283 } |
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284 } |
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285 |
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286 void |
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287 workspace_model::clear_data (void) |
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288 { |
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289 m_top_level = false; |
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290 m_syminfo_list = symbol_info_list (); |
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291 m_scopes = QString (); |
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292 m_symbols = QStringList (); |
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293 m_class_names = QStringList (); |
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294 m_dimensions = QStringList (); |
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295 m_values = QStringList (); |
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296 m_complex_flags = QIntList (); |
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297 } |
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298 |
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299 void |
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300 workspace_model::update_table (void) |
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301 { |
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302 beginResetModel (); |
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303 |
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304 for (const auto& syminfo : m_syminfo_list) |
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305 { |
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306 std::string nm = syminfo.name (); |
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307 |
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308 octave_value val = syminfo.value (); |
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309 |
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310 // FIXME: fix size for objects, see kluge in ov.cc |
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311 Matrix sz = val.size (); |
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312 dim_vector dv = dim_vector::alloc (sz.numel ()); |
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313 for (octave_idx_type i = 0; i < dv.ndims (); i++) |
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314 dv(i) = sz(i); |
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315 |
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316 char storage = ' '; |
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317 if (syminfo.is_formal ()) |
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318 storage = 'a'; |
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319 else if (syminfo.is_global ()) |
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320 storage = 'g'; |
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321 else if (syminfo.is_persistent ()) |
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322 storage = 'p'; |
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323 |
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324 std::ostringstream buf; |
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325 val.short_disp (buf); |
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326 std::string short_disp_str = buf.str (); |
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327 |
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328 m_scopes.append (storage); |
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329 m_symbols.append (QString::fromStdString (nm)); |
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330 m_class_names.append (QString::fromStdString (val.class_name ())); |
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331 m_dimensions.append (QString::fromStdString (dv.str ())); |
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332 m_values.append (QString::fromStdString (short_disp_str)); |
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333 m_complex_flags.append (val.iscomplex ()); |
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334 } |
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335 |
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336 endResetModel (); |
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337 |
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338 emit model_changed (); |
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339 } |
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340 } |