source: trunk/examples/xml/streambookmarks/mainwindow.cpp@ 561

Last change on this file since 561 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.

File size: 5.6 KB
RevLine 
[2]1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
[561]4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
[2]6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
[561]24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
[2]27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
[561]36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
[2]38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43
44#include "mainwindow.h"
45#include "xbelreader.h"
46#include "xbelwriter.h"
47
48//! [0]
49MainWindow::MainWindow()
50{
51 QStringList labels;
52 labels << tr("Title") << tr("Location");
53
54 treeWidget = new QTreeWidget;
55 treeWidget->header()->setResizeMode(QHeaderView::Stretch);
56 treeWidget->setHeaderLabels(labels);
57 setCentralWidget(treeWidget);
58
59 createActions();
60 createMenus();
61
62 statusBar()->showMessage(tr("Ready"));
63
64 setWindowTitle(tr("QXmlStream Bookmarks"));
65 resize(480, 320);
66}
67//! [0]
68
69//! [1]
70void MainWindow::open()
71{
72 QString fileName =
73 QFileDialog::getOpenFileName(this, tr("Open Bookmark File"),
74 QDir::currentPath(),
75 tr("XBEL Files (*.xbel *.xml)"));
76 if (fileName.isEmpty())
77 return;
78
79 treeWidget->clear();
80
81
82 QFile file(fileName);
83 if (!file.open(QFile::ReadOnly | QFile::Text)) {
84 QMessageBox::warning(this, tr("QXmlStream Bookmarks"),
85 tr("Cannot read file %1:\n%2.")
86 .arg(fileName)
87 .arg(file.errorString()));
88 return;
89 }
90
91 XbelReader reader(treeWidget);
92 if (!reader.read(&file)) {
93 QMessageBox::warning(this, tr("QXmlStream Bookmarks"),
[561]94 tr("Parse error in file %1:\n\n%2")
[2]95 .arg(fileName)
96 .arg(reader.errorString()));
97 } else {
98 statusBar()->showMessage(tr("File loaded"), 2000);
99 }
100
101}
102//! [1]
103
104//! [2]
105void MainWindow::saveAs()
106{
107 QString fileName =
108 QFileDialog::getSaveFileName(this, tr("Save Bookmark File"),
109 QDir::currentPath(),
110 tr("XBEL Files (*.xbel *.xml)"));
111 if (fileName.isEmpty())
112 return;
113
114 QFile file(fileName);
115 if (!file.open(QFile::WriteOnly | QFile::Text)) {
116 QMessageBox::warning(this, tr("QXmlStream Bookmarks"),
117 tr("Cannot write file %1:\n%2.")
118 .arg(fileName)
119 .arg(file.errorString()));
120 return;
121 }
122
123 XbelWriter writer(treeWidget);
124 if (writer.writeFile(&file))
125 statusBar()->showMessage(tr("File saved"), 2000);
126}
127//! [2]
128
129//! [3]
130void MainWindow::about()
131{
132 QMessageBox::about(this, tr("About QXmlStream Bookmarks"),
133 tr("The <b>QXmlStream Bookmarks</b> example demonstrates how to use Qt's "
134 "QXmlStream classes to read and write XML documents."));
135}
136//! [3]
137
138//! [4]
139void MainWindow::createActions()
140{
141 openAct = new QAction(tr("&Open..."), this);
[561]142 openAct->setShortcuts(QKeySequence::Open);
[2]143 connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
144
145 saveAsAct = new QAction(tr("&Save As..."), this);
[561]146 saveAsAct->setShortcuts(QKeySequence::SaveAs);
[2]147 connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs()));
148
149 exitAct = new QAction(tr("E&xit"), this);
[561]150 exitAct->setShortcuts(QKeySequence::Quit);
[2]151 connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
152
153 aboutAct = new QAction(tr("&About"), this);
154 connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
155
156 aboutQtAct = new QAction(tr("About &Qt"), this);
157 connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
158}
159//! [4]
160
161//! [5]
162void MainWindow::createMenus()
163{
164 fileMenu = menuBar()->addMenu(tr("&File"));
165 fileMenu->addAction(openAct);
166 fileMenu->addAction(saveAsAct);
167 fileMenu->addAction(exitAct);
168
169 menuBar()->addSeparator();
170
171 helpMenu = menuBar()->addMenu(tr("&Help"));
172 helpMenu->addAction(aboutAct);
173 helpMenu->addAction(aboutQtAct);
174}
175//! [5]
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