<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Qt 4.2: mainwindow.cpp Example File (xml/saxbookmarks/mainwindow.cpp)</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://www.trolltech.com/products/qt"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></a></td> <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="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td> <td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">mainwindow.cpp Example File<br /><sup><sup>xml/saxbookmarks/mainwindow.cpp</sup></sup></h1> <pre> /**************************************************************************** ** ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 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 GNU ** General Public Licensing requirements will be met: ** http:<span class="comment">//www.trolltech.com/products/qt/opensource.html</span> ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http:<span class="comment">//www.trolltech.com/products/qt/licensing.html or contact the</span> ** sales department at sales@trolltech.com. ** ** 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)) statusBar()->showMessage(tr("File loaded"), 2000); } void MainWindow::saveAs() { QString fileName = QFileDialog::getSaveFileName(this, tr("Save Bookmark File"), QDir::currentPath(), tr("XBEL Files (*.xbel *.xml)")); if (fileName.isEmpty()) return; QFile file(fileName); if (!file.open(QFile::WriteOnly | QFile::Text)) { QMessageBox::warning(this, tr("SAX Bookmarks"), tr("Cannot write file %1:\n%2.") .arg(fileName) .arg(file.errorString())); return; } XbelGenerator generator(treeWidget); if (generator.write(&file)) statusBar()->showMessage(tr("File saved"), 2000); } void MainWindow::about() { QMessageBox::about(this, tr("About SAX Bookmarks"), tr("The <b>SAX Bookmarks</b> example demonstrates how to use Qt's " "SAX classes to read XML documents and how to generate XML by " "hand.")); } void MainWindow::createActions() { openAct = new QAction(tr("&Open..."), this); openAct->setShortcut(tr("Ctrl+O")); connect(openAct, SIGNAL(triggered()), this, SLOT(open())); saveAsAct = new QAction(tr("&Save As..."), this); saveAsAct->setShortcut(tr("Ctrl+S")); connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs())); exitAct = new QAction(tr("E&xit"), this); exitAct->setShortcut(tr("Ctrl+Q")); connect(exitAct, SIGNAL(triggered()), this, SLOT(close())); aboutAct = new QAction(tr("&About"), this); connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); aboutQtAct = new QAction(tr("About &Qt"), this); connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); } void MainWindow::createMenus() { fileMenu = menuBar()->addMenu(tr("&File")); fileMenu->addAction(openAct); fileMenu->addAction(saveAsAct); fileMenu->addAction(exitAct); menuBar()->addSeparator(); helpMenu = menuBar()->addMenu(tr("&Help")); helpMenu->addAction(aboutAct); helpMenu->addAction(aboutQtAct); }</pre> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="30%">Copyright © 2006 <a href="trolltech.html">Trolltech</a></td> <td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="30%" align="right"><div align="right">Qt 4.2.1</div></td> </tr></table></div></address></body> </html>