1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
/*
window.cpp
A minimal subclass of QTableView with slots to allow the selection model
to be monitored.
*/
#include <QAbstractItemModel>
#include <QItemSelection>
#include <QItemSelectionModel>
#include <QMenu>
#include <QMenuBar>
#include <QStatusBar>
#include "model.h"
#include "window.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
setWindowTitle("Selected Items in a Table Model");
model = new TableModel(8, 4, this);
table = new QTableView(this);
table->setModel(model);
QMenu *actionMenu = new QMenu(tr("&Actions"), this);
QAction *fillAction = actionMenu->addAction(tr("&Fill Selection"));
QAction *clearAction = actionMenu->addAction(tr("&Clear Selection"));
QAction *selectAllAction = actionMenu->addAction(tr("&Select All"));
menuBar()->addMenu(actionMenu);
connect(fillAction, SIGNAL(triggered()), this, SLOT(fillSelection()));
connect(clearAction, SIGNAL(triggered()), this, SLOT(clearSelection()));
connect(selectAllAction, SIGNAL(triggered()), this, SLOT(selectAll()));
selectionModel = table->selectionModel();
statusBar();
setCentralWidget(table);
}
void MainWindow::fillSelection()
{
//! [0]
QModelIndexList indexes = selectionModel->selectedIndexes();
QModelIndex index;
foreach(index, indexes) {
QString text = QString("(%1,%2)").arg(index.row()).arg(index.column());
model->setData(index, text);
}
//! [0]
}
void MainWindow::clearSelection()
{
QModelIndexList indexes = selectionModel->selectedIndexes();
QModelIndex index;
foreach(index, indexes)
model->setData(index, "");
}
void MainWindow::selectAll()
{
//! [1]
QModelIndex parent = QModelIndex();
//! [1] //! [2]
QModelIndex topLeft = model->index(0, 0, parent);
QModelIndex bottomRight = model->index(model->rowCount(parent)-1,
model->columnCount(parent)-1, parent);
//! [2]
//! [3]
QItemSelection selection(topLeft, bottomRight);
selectionModel->select(selection, QItemSelectionModel::Select);
//! [3]
}
|
