<?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 (richtext/syntaxhighlighter/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>richtext/syntaxhighlighter/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" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { setupFileMenu(); setupHelpMenu(); setupEditor(); setCentralWidget(editor); setWindowTitle(tr("Syntax Highlighter")); } void MainWindow::about() { QMessageBox::about(this, tr("About Syntax Highlighter"), tr("<p>The <b>Syntax Highlighter</b> example shows how " \ "to perform simple syntax highlighting by subclassing " \ "the QSyntaxHighlighter class and describing " \ "highlighting rules using regular expressions.</p>")); } void MainWindow::newFile() { editor->clear(); } void MainWindow::openFile(const QString &path) { QString fileName = path; if (fileName.isNull()) fileName = QFileDialog::getOpenFileName(this, tr("Open File"), "", "C++ Files (*.cpp *.h)"); if (!fileName.isEmpty()) { QFile file(fileName); if (file.open(QFile::ReadOnly | QFile::Text)) editor->setPlainText(file.readAll()); } } void MainWindow::setupEditor() { QFont font; font.setFamily("Courier"); font.setFixedPitch(true); font.setPointSize(10); editor = new QTextEdit; editor->setFont(font); highlighter = new Highlighter(editor->document()); QFile file("mainwindow.h"); if (file.open(QFile::ReadOnly | QFile::Text)) editor->setPlainText(file.readAll()); } void MainWindow::setupFileMenu() { QMenu *fileMenu = new QMenu(tr("&File"), this); menuBar()->addMenu(fileMenu); fileMenu->addAction(tr("&New"), this, SLOT(newFile()), QKeySequence(tr("Ctrl+N", "File|New"))); fileMenu->addAction(tr("&Open..."), this, SLOT(openFile()), QKeySequence(tr("Ctrl+O", "File|Open"))); fileMenu->addAction(tr("E&xit"), qApp, SLOT(quit()), QKeySequence(tr("Ctrl+Q", "File|Exit"))); } void MainWindow::setupHelpMenu() { QMenu *helpMenu = new QMenu(tr("&Help"), this); menuBar()->addMenu(helpMenu); helpMenu->addAction(tr("&About"), this, SLOT(about())); helpMenu->addAction(tr("About &Qt"), qApp, SLOT(aboutQt())); }</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>