~oif-team/ubuntu/natty/qt4-x11/xi2.1

<td width="1">  </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="annotated.html"><font color="#004faf">Annotated</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td>

<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">mainwindow.cpp Example File<br /><small><small>xml/saxbookmarks/mainwindow.cpp</small></small></h1>

<pre>  /****************************************************************************

** This file is part of the documentation of the Qt Toolkit.

** This file may be distributed under the terms of the Q Public License

** as defined by Trolltech AS of Norway and appearing in the file

** LICENSE.QPL included in the packaging of this file.

** This file may be distributed and/or modified under the terms of the

** GNU General Public License version 2 as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL included in the

** packaging of this file.

** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for

** information about Qt Commercial License Agreements.

** See http://www.trolltech.com/qpl/ for QPL licensing information.

** See http://www.trolltech.com/gpl/ for GPL licensing information.

** Contact info@trolltech.com if any conditions of this licensing are

** not clear to you.

** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE

** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

****************************************************************************/

#include <QtGui>

#include "mainwindow.h"

#include "xbelgenerator.h"

#include "xbelhandler.h"

MainWindow::MainWindow()

{

QStringList labels;

labels << tr("Title") << tr("Location");

treeWidget = new QTreeWidget;

treeWidget->header()->setResizeMode(QHeaderView::Stretch);

treeWidget->setHeaderLabels(labels);

setCentralWidget(treeWidget);

createActions();

createMenus();

statusBar()->showMessage(tr("Ready"));

setWindowTitle(tr("SAX Bookmarks"));

resize(480, 320);

}

void MainWindow::open()

{

QString fileName =

QFileDialog::getOpenFileName(this, tr("Open Bookmark File"),

QDir::currentPath(),

tr("XBEL Files (*.xbel *.xml)"));

if (fileName.isEmpty())

return;

treeWidget->clear();

XbelHandler handler(treeWidget);

QXmlSimpleReader reader;

reader.setContentHandler(&handler);

reader.setErrorHandler(&handler);

QFile file(fileName);

if (!file.open(QFile::ReadOnly | QFile::Text)) {

QMessageBox::warning(this, tr("SAX Bookmarks"),

tr("Cannot read file %1:\n%2.")

.arg(fileName)

.arg(file.errorString()));

return;

}

QXmlInputSource xmlInputSource(&file);

if (reader.parse(xmlInputSource))

100

statusBar()->showMessage(tr("File loaded"), 2000);

101

}

102

103

void MainWindow::saveAs()

104

{

105

QString fileName =

106

QFileDialog::getSaveFileName(this, tr("Save Bookmark File"),

107

QDir::currentPath(),

108

tr("XBEL Files (*.xbel *.xml)"));

109

if (fileName.isEmpty())

110

return;

111

112

QFile file(fileName);

113

if (!file.open(QFile::WriteOnly | QFile::Text)) {

114

QMessageBox::warning(this, tr("SAX Bookmarks"),

115

tr("Cannot write file %1:\n%2.")

116

.arg(fileName)

117

.arg(file.errorString()));

118

return;

119

}

120

121

XbelGenerator generator(treeWidget);

122

if (generator.write(&file))

123

statusBar()->showMessage(tr("File saved"), 2000);

124

}

125

126

void MainWindow::about()

127

{

128

QMessageBox::about(this, tr("About SAX Bookmarks"),

129

tr("The <b>SAX Bookmarks</b> example demonstrates how to use Qt's "

130

"SAX classes to read XML documents and how to generate XML by "

131

"hand."));

132

}

133

134

void MainWindow::createActions()

135

{

136

openAct = new QAction(tr("&Open..."), this);

137

openAct->setShortcut(tr("Ctrl+O"));

138

connect(openAct, SIGNAL(triggered()), this, SLOT(open()));

139

140

saveAsAct = new QAction(tr("&Save As..."), this);

141

saveAsAct->setShortcut(tr("Ctrl+S"));

142

connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs()));

143

144

exitAct = new QAction(tr("E&xit"), this);

145

exitAct->setShortcut(tr("Ctrl+Q"));

146

connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));

147

148

aboutAct = new QAction(tr("&About"), this);

149

connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

150

151

aboutQtAct = new QAction(tr("About &Qt"), this);

152

connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));

153

}

154

155

void MainWindow::createMenus()

156

{

157

fileMenu = menuBar()->addMenu(tr("&File"));

158

fileMenu->addAction(openAct);

159

fileMenu->addAction(saveAsAct);

160

fileMenu->addAction(exitAct);

161

162

menuBar()->addSeparator();

163

164

helpMenu = menuBar()->addMenu(tr("&Help"));

165

helpMenu->addAction(aboutAct);

166

helpMenu->addAction(aboutQtAct);

167

}</pre>

168

169

170

171

<td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td>

172

173

</tr></table></div></address></body>

174

</html>

Older »