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<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 /><sup><sup>painting/svgviewer/mainwindow.cpp</sup></sup></h1>

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

** This file is part of the documentation 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://www.trolltech.com/products/qt/opensource.html

** If you are unsure which license is appropriate for your use, please

** review the following information:

** http://www.trolltech.com/products/qt/licensing.html or contact the

** 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()

: QMainWindow()

{

area = new SvgWindow;

QMenu *fileMenu = new QMenu(tr("&File"), this);

QAction *openAction = fileMenu->addAction(tr("&Open..."));

openAction->setShortcut(QKeySequence(tr("Ctrl+O")));

QAction *quitAction = fileMenu->addAction(tr("E&xit"));

quitAction->setShortcut(QKeySequence(tr("Ctrl+Q")));

menuBar()->addMenu(fileMenu);

QMenu *rendererMenu = new QMenu(tr("&Renderer"), this);

nativeAction = rendererMenu->addAction(tr("&Native"));

nativeAction->setCheckable(true);

nativeAction->setChecked(true);

#ifndef QT_NO_OPENGL

glAction = rendererMenu->addAction(tr("&OpenGL"));

glAction->setCheckable(true);

#endif

imageAction = rendererMenu->addAction(tr("&Image"));

imageAction->setCheckable(true);

QActionGroup *rendererGroup = new QActionGroup(this);

rendererGroup->addAction(nativeAction);

#ifndef QT_NO_OPENGL

rendererGroup->addAction(glAction);

#endif

rendererGroup->addAction(imageAction);

menuBar()->addMenu(rendererMenu);

connect(openAction, SIGNAL(triggered()), this, SLOT(openFile()));

connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));

connect(rendererGroup, SIGNAL(triggered(QAction *)),

this, SLOT(setRenderer(QAction *)));

setCentralWidget(area);

setWindowTitle(tr("SVG Viewer"));

}

void MainWindow::openFile(const QString &path)

{

QString fileName;

if (path.isNull())

fileName = QFileDialog::getOpenFileName(this, tr("Open SVG File"),

currentPath, "*.svg");

else

fileName = path;

if (!fileName.isEmpty()) {

area->openFile(fileName);

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if (!fileName.startsWith(":/")) {

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currentPath = fileName;

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setWindowTitle(tr("%1 - SVGViewer").arg(currentPath));

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}

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}

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}

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void MainWindow::setRenderer(QAction *action)

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{

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if (action == nativeAction)

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area->setRenderer(SvgWindow::Native);

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#ifndef QT_NO_OPENGL

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else if (action == glAction)

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area->setRenderer(SvgWindow::OpenGL);

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#endif

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else if (action == imageAction)

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area->setRenderer(SvgWindow::Image);

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}</pre>

<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>painting/svgviewer/mainwindow.cpp</sup></sup></h1>

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

** 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()

: QMainWindow()

{

area = new SvgWindow;

QMenu *fileMenu = new QMenu(tr("&File"), this);

QAction *openAction = fileMenu->addAction(tr("&Open..."));

openAction->setShortcut(QKeySequence(tr("Ctrl+O")));

QAction *quitAction = fileMenu->addAction(tr("E&xit"));

quitAction->setShortcut(QKeySequence(tr("Ctrl+Q")));

menuBar()->addMenu(fileMenu);

QMenu *rendererMenu = new QMenu(tr("&Renderer"), this);

nativeAction = rendererMenu->addAction(tr("&Native"));

nativeAction->setCheckable(true);

nativeAction->setChecked(true);

#ifndef QT_NO_OPENGL

glAction = rendererMenu->addAction(tr("&OpenGL"));

glAction->setCheckable(true);

#endif

imageAction = rendererMenu->addAction(tr("&Image"));

imageAction->setCheckable(true);

QActionGroup *rendererGroup = new QActionGroup(this);

rendererGroup->addAction(nativeAction);

#ifndef QT_NO_OPENGL

rendererGroup->addAction(glAction);

#endif

rendererGroup->addAction(imageAction);

menuBar()->addMenu(rendererMenu);

connect(openAction, SIGNAL(triggered()), this, SLOT(openFile()));

connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));

connect(rendererGroup, SIGNAL(triggered(QAction *)),

this, SLOT(setRenderer(QAction *)));

setCentralWidget(area);

setWindowTitle(tr("SVG Viewer"));

}

void MainWindow::openFile(const QString &path)

{

QString fileName;

if (path.isNull())

fileName = QFileDialog::getOpenFileName(this, tr("Open SVG File"),

currentPath, "*.svg");

else

fileName = path;

if (!fileName.isEmpty()) {

area->openFile(fileName);

if (!fileName.startsWith(":/")) {

currentPath = fileName;

setWindowTitle(tr("%1 - SVGViewer").arg(currentPath));

}

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}

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void MainWindow::setRenderer(QAction *action)

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{

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if (action == nativeAction)

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area->setRenderer(SvgWindow::Native);

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#ifndef QT_NO_OPENGL

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else if (action == glAction)

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area->setRenderer(SvgWindow::OpenGL);

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#endif

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else if (action == imageAction)

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area->setRenderer(SvgWindow::Image);

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}</pre>

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