1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2011 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 | ** $QT_BEGIN_LICENSE:BSD$
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10 | ** You may use this file under the terms of the BSD license as follows:
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11 | **
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12 | ** "Redistribution and use in source and binary forms, with or without
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13 | ** modification, are permitted provided that the following conditions are
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14 | ** met:
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15 | ** * Redistributions of source code must retain the above copyright
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16 | ** notice, this list of conditions and the following disclaimer.
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17 | ** * Redistributions in binary form must reproduce the above copyright
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18 | ** notice, this list of conditions and the following disclaimer in
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19 | ** the documentation and/or other materials provided with the
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20 | ** distribution.
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21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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22 | ** the names of its contributors may be used to endorse or promote
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23 | ** products derived from this software without specific prior written
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24 | ** permission.
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25 | **
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26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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37 | ** $QT_END_LICENSE$
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38 | **
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39 | ****************************************************************************/
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40 |
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41 | /*
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42 | window.cpp
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43 |
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44 | A minimal subclass of QTableView with slots to allow the selection model
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45 | to be monitored.
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46 | */
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47 |
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48 | #include <QAbstractItemModel>
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49 | #include <QItemSelection>
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50 | #include <QItemSelectionModel>
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51 | #include <QStatusBar>
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52 |
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53 | #include "model.h"
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54 | #include "window.h"
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55 |
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56 | MainWindow::MainWindow(QWidget *parent)
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57 | : QMainWindow(parent)
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58 | {
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59 | setWindowTitle("Selected items in a table model");
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60 |
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61 | model = new TableModel(8, 4, this);
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62 |
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63 | table = new QTableView(this);
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64 | table->setModel(model);
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65 |
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66 | selectionModel = table->selectionModel();
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67 | connect(selectionModel,
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68 | SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)),
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69 | this, SLOT(updateSelection(const QItemSelection &, const QItemSelection &)));
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70 | connect(selectionModel,
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71 | SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)),
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72 | this, SLOT(changeCurrent(const QModelIndex &, const QModelIndex &)));
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73 |
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74 | statusBar();
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75 | setCentralWidget(table);
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76 | }
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77 |
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78 | //! [0]
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79 | void MainWindow::updateSelection(const QItemSelection &selected,
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80 | const QItemSelection &deselected)
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81 | {
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82 | QModelIndex index;
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83 | QModelIndexList items = selected.indexes();
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84 |
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85 | foreach (index, items) {
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86 | QString text = QString("(%1,%2)").arg(index.row()).arg(index.column());
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87 | model->setData(index, text);
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88 | //! [0] //! [1]
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89 | }
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90 | //! [1]
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91 |
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92 | //! [2]
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93 | items = deselected.indexes();
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94 |
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95 | foreach (index, items)
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96 | model->setData(index, "");
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97 | }
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98 | //! [2]
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99 |
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100 | //! [3]
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101 | void MainWindow::changeCurrent(const QModelIndex ¤t,
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102 | const QModelIndex &previous)
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103 | {
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104 | statusBar()->showMessage(
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105 | tr("Moved from (%1,%2) to (%3,%4)")
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106 | .arg(previous.row()).arg(previous.column())
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107 | .arg(current.row()).arg(current.column()));
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108 | }
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109 | //! [3]
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