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annotate gui/src/workspace-model.h @ 14719:89c64340e9ab gui

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Extended event based communication model. * octave-event-listener.h: New interface for event listeners. * octave-qt-event-listener: Implementation ov event listener for Qt. * main-window: Added event listener and connected signals. * octave-event-observer.h: Renamed ignore-method and added comments. * octave-event.h: Removed type information and added process method instead. * octave-link: Removed QObject subclassing. * src.pro: Added new files to project. * workspace-model: Removed QTimer, since it not in a Qt event loop anymore. * workspace-view: Added QTimer from the model temporarily.
author Jacob Dawid <jacob.dawid@googlemail.com>
date Mon, 04 Jun 2012 16:08:44 +0200
parents 5cb54cca8a06
children cecc7da96e2a
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1 /* OctaveGUI - A graphical user interface for Octave
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2 * Copyright (C) 2011 Jacob Dawid (jacob.dawid@googlemail.com)
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3 *
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4 * This program is free software: you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as
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6 * published by the Free Software Foundation, either version 3 of the
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7 * License, or (at your option) any later version.
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8 *
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9 * This program is distributed in the hope that it will be useful,
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 * GNU General Public License for more details.
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13 *
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14 * You should have received a copy of the GNU General Public License
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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16 */
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17
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18 #ifndef WORKSPACEMODEL_H
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19 #define WORKSPACEMODEL_H
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20
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21 // Qt includes
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22 #include <QAbstractItemModel>
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23 #include <QVector>
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24 #include <QSemaphore>
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25 #include <QTimer>
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27 class tree_item
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28 {
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29 public:
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30 tree_item(const QList<QVariant> &data, tree_item *parent = 0) {
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31 _parent_item = parent;
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32 _item_data = data;
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33 }
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34
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35 tree_item(QVariant data = QVariant(), tree_item *parent = 0) {
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36 QList<QVariant> variantList;
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37 variantList << data << QVariant() << QVariant();
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38 _parent_item = parent;
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39 _item_data = variantList;
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40 }
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41
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42 ~tree_item() {
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43 qDeleteAll(_child_items);
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44 }
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45
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46 void insert_child_item(int at, tree_item *item) {
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47 item->_parent_item = this;
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48 _child_items.insert(at, item);
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49 }
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50
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51 void add_child(tree_item *item) {
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52 item->_parent_item = this;
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53 _child_items.append(item);
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54 }
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55
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56 void delete_child_items() {
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57 qDeleteAll(_child_items);
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58 _child_items.clear();
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59 }
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60
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61 void remove_child(tree_item *item) {
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62 _child_items.removeAll(item);
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63 }
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64
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65 QVariant data(int column) const
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66 {
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67 return _item_data[column];
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68 }
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69
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70 void set_data(int column, QVariant data)
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71 {
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72 _item_data[column] = data;
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73 }
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74
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75 tree_item *child(int row) {
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76 return _child_items[row];
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77 }
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78
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79 int child_count() const {
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80 return _child_items.count();
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81 }
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82
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83 int column_count() const
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84 {
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85 return _item_data.count();
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86 }
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87
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88 int row() const {
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89 if (_parent_item)
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90 return _parent_item->_child_items.indexOf(const_cast<tree_item*>(this));
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91
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92 return 0;
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93 }
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94
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95 tree_item *parent()
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96 {
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97 return _parent_item;
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98 }
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99
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100 private:
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101 QList<tree_item*> _child_items;
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102 QList<QVariant> _item_data;
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103 tree_item *_parent_item;
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104 };
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105
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106 class workspace_model : public QAbstractItemModel
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107 {
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108 Q_OBJECT
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109
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110 public:
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111 workspace_model(QObject *parent = 0);
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112 ~workspace_model();
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113
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114 QVariant data(const QModelIndex &index, int role) const;
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115 Qt::ItemFlags flags(const QModelIndex &index) const;
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116 QVariant headerData(int section, Qt::Orientation orientation,
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117 int role = Qt::DisplayRole) const;
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118 QModelIndex index(int row, int column,
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119 const QModelIndex &parent = QModelIndex()) const;
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120 QModelIndex parent(const QModelIndex &index) const;
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121 int rowCount(const QModelIndex &parent = QModelIndex()) const;
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122 int columnCount(const QModelIndex &parent = QModelIndex()) const;
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123
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124 void insert_top_level_item (int at, tree_item *treeItem);
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125 tree_item *top_level_item (int at);
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126
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127 public slots:
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128 void update_from_symbol_table ();
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129
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130 signals:
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131 void expand_request();
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132
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133 private:
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134 tree_item *_rootItem;
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135 };
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136
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137 #endif // WORKSPACEMODEL_H