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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the documentation of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 /* |
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43 window.cpp |
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44 |
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45 A minimal subclass of QTableView with slots to allow the selection model |
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46 to be monitored. |
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47 */ |
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48 |
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49 #include <QAbstractItemModel> |
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50 #include <QItemSelection> |
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51 #include <QItemSelectionModel> |
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52 #include <QStatusBar> |
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53 |
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54 #include "model.h" |
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55 #include "window.h" |
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56 |
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57 MainWindow::MainWindow(QWidget *parent) |
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58 : QMainWindow(parent) |
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59 { |
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60 setWindowTitle("Selected items in a table model"); |
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61 |
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62 model = new TableModel(8, 4, this); |
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63 |
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64 table = new QTableView(this); |
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65 table->setModel(model); |
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66 |
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67 selectionModel = table->selectionModel(); |
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68 connect(selectionModel, |
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69 SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)), |
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70 this, SLOT(updateSelection(const QItemSelection &, const QItemSelection &))); |
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71 connect(selectionModel, |
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72 SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)), |
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73 this, SLOT(changeCurrent(const QModelIndex &, const QModelIndex &))); |
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74 |
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75 statusBar(); |
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76 setCentralWidget(table); |
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77 } |
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78 |
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79 //! [0] |
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80 void MainWindow::updateSelection(const QItemSelection &selected, |
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81 const QItemSelection &deselected) |
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82 { |
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83 QModelIndex index; |
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84 QModelIndexList items = selected.indexes(); |
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85 |
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86 foreach (index, items) { |
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87 QString text = QString("(%1,%2)").arg(index.row()).arg(index.column()); |
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88 model->setData(index, text); |
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89 //! [0] //! [1] |
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90 } |
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91 //! [1] |
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92 |
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93 //! [2] |
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94 items = deselected.indexes(); |
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95 |
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96 foreach (index, items) |
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97 model->setData(index, ""); |
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98 } |
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99 //! [2] |
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100 |
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101 //! [3] |
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102 void MainWindow::changeCurrent(const QModelIndex ¤t, |
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103 const QModelIndex &previous) |
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104 { |
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105 statusBar()->showMessage( |
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106 tr("Moved from (%1,%2) to (%3,%4)") |
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107 .arg(previous.row()).arg(previous.column()) |
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108 .arg(current.row()).arg(current.column())); |
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109 } |
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110 //! [3] |