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annotate libgui/src/workspace-model.h @ 15368:36ececf69385

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avoid some GCC warnings in the libgui code * file-editor-interface.h, lexer-octave-gui.cc, main-window.cc, settings-dialog.cc, workspace-model.cc, workspace-view.cc: Avoid some shadowed variable, unused switch case, and C-style cast warnings.
author John W. Eaton <jwe@octave.org>
date Wed, 12 Sep 2012 20:32:57 -0400
parents 501a9cc2c68f
children 24b5348d38e7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2
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3 Copyright (C) 2011-2012 Jacob Dawid
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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 #ifndef WORKSPACEMODEL_H
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24 #define WORKSPACEMODEL_H
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25
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26 // Qt includes
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27 #include <QAbstractItemModel>
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28 #include <QVector>
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29 #include <QSemaphore>
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30 #include <QTimer>
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31
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32 #include "symbol-information.h"
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33 #include "octave-event-observer.h"
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34
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35 class tree_item
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36 {
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37 public:
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38 tree_item (const QList<QVariant> &d, tree_item *p = 0) {
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39 _parent_item = p;
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40 _item_data = d;
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41 }
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42
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43 tree_item (QVariant d = QVariant(), tree_item *p = 0) {
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44 QList<QVariant> variantList;
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45 variantList << d << QVariant () << QVariant () << QVariant ();
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46 _parent_item = p;
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47 _item_data = variantList;
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48 }
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49
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50 ~tree_item () {
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51 qDeleteAll (_child_items);
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52 }
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53
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54 void insert_child_item (int at, tree_item *item) {
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55 item->_parent_item = this;
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56 _child_items.insert (at, item);
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57 }
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58
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59 void add_child (tree_item *item) {
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60 item->_parent_item = this;
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61 _child_items.append (item);
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62 }
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63
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64 void delete_child_items () {
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65 qDeleteAll (_child_items);
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66 _child_items.clear ();
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67 }
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68
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69 void remove_child (tree_item *item) {
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70 _child_items.removeAll (item);
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71 }
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72
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73 QVariant data (int column) const
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74 {
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75 return _item_data[column];
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76 }
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77
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78 void set_data (int column, QVariant d)
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79 {
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80 _item_data[column] = d;
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81 }
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82
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83 tree_item *child (int r) {
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84 return _child_items[r];
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85 }
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86
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87 int child_count () const {
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88 return _child_items.count();
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89 }
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90
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91 int column_count () const
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92 {
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93 return _item_data.count();
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94 }
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95
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96 int row () const {
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97 if (_parent_item)
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98 return _parent_item->_child_items.indexOf (const_cast<tree_item*>(this));
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99
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100 return 0;
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101 }
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102
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103 tree_item *parent ()
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104 {
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105 return _parent_item;
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106 }
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107
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108 private:
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109 QList<tree_item*> _child_items;
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110 QList<QVariant> _item_data;
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111 tree_item *_parent_item;
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112 };
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113
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114 class workspace_model
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115 : public QAbstractItemModel, public octave_event_observer
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116 {
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117 Q_OBJECT
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118
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119 public:
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120 workspace_model (QObject *parent = 0);
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121 ~workspace_model ();
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122
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123 void event_accepted (octave_event *e);
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124 void event_reject (octave_event *e);
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125
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126 QVariant data (const QModelIndex &index, int role) const;
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127 Qt::ItemFlags flags (const QModelIndex &index) const;
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128 QVariant headerData (int section, Qt::Orientation orientation,
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129 int role = Qt::DisplayRole) const;
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130 QModelIndex index (int row, int column,
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131 const QModelIndex &parent = QModelIndex ()) const;
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132 QModelIndex parent (const QModelIndex &index) const;
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133 int rowCount (const QModelIndex &parent = QModelIndex ()) const;
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134 int columnCount (const QModelIndex &parent = QModelIndex ()) const;
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135
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136 void insert_top_level_item (int at, tree_item *treeItem);
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137 tree_item *top_level_item (int at);
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138
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139 public slots:
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140 void request_update_workspace ();
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141
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142 signals:
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143 void model_changed ();
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144
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145 private:
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146 /** Timer for periodically updating the workspace model from the current
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147 * symbol information. */
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148 QTimer _update_workspace_model_timer;
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149
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150 /** Stores the current symbol information. */
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151 QList <symbol_information> _symbol_information;
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152 tree_item *_rootItem;
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153 };
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154
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155 #endif // WORKSPACEMODEL_H