mainwindow.cpp Example File
painting/svgviewer/mainwindow.cpp
/****************************************************************************
**
** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
**
** 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
**
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** review the following information:
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/
#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);
#ifndef QT_NO_OPENGL
glAction = rendererMenu->addAction(tr("&OpenGL"));
glAction->setCheckable(true);
#endif
imageAction = rendererMenu->addAction(tr("&Image"));
imageAction->setCheckable(true);
imageAction->setChecked(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));
}
}
}
void MainWindow::setRenderer(QAction *action)
{
if (action == nativeAction)
area->setRenderer(SvgWindow::Native);
#ifndef QT_NO_OPENGL
else if (action == glAction)
area->setRenderer(SvgWindow::OpenGL);
#endif
else if (action == imageAction)
area->setRenderer(SvgWindow::Image);
}