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
|
/****************************************************************************
**
** 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "mainwindow.h"
#include "dragdropmodel.h"
MainWindow::MainWindow()
{
QMenu *fileMenu = new QMenu(tr("&File"));
QAction *quitAction = fileMenu->addAction(tr("E&xit"));
quitAction->setShortcut(tr("Ctrl+Q"));
menuBar()->addMenu(fileMenu);
// For convenient quoting:
QTreeView *treeView = new QTreeView(this);
treeView->setSelectionMode(QAbstractItemView::ExtendedSelection);
treeView->setDragEnabled(true);
treeView->setAcceptDrops(true);
treeView->setDropIndicatorShown(true);
this->treeView = treeView;
connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
setupItems();
setCentralWidget(treeView);
setWindowTitle(tr("Tree View"));
}
void MainWindow::setupItems()
{
QStringList items;
items << tr("Widgets\tUser interface objects used to create GUI applications.")
<< tr(" QWidget\tThe basic building block for all other widgets.")
<< tr(" QDialog\tThe base class for dialog windows.")
<< tr("Tools\tUtilities and applications for Qt developers.")
<< tr(" Qt Designer\tA GUI form designer for Qt applications.")
<< tr(" Qt Assistant\tA documentation browser for Qt documentation.");
DragDropModel *model = new DragDropModel(items, this);
QModelIndex index = model->index(0, 0, QModelIndex());
model->insertRows(2, 3, index);
index = model->index(0, 0, QModelIndex());
index = model->index(2, 0, index);
model->setData(index, QVariant("QFrame"));
model->removeRows(3, 2, index.parent());
treeView->setModel(model);
}
|
