<?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 4.3: svgwindow.cpp Example File (painting/svgviewer/svgwindow.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">svgwindow.cpp Example File<br /><sup><sup>painting/svgviewer/svgwindow.cpp</sup></sup></h1> <pre><span class="comment"> /**************************************************************************** ** ** Copyright (C) 2005-2008 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 versions 2.0 or 3.0 as published by the Free Software ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Alternatively you may (at ** your option) use any later version of the GNU General Public ** License if such license has been publicly approved by Trolltech ASA ** (or its successors, if any) and the KDE Free Qt Foundation. In ** addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.1, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** Please review the following information to ensure GNU General ** Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If ** you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech, as the sole ** copyright holder for Qt Designer, grants users of the Qt/Eclipse ** Integration plug-in the right for the Qt/Eclipse Integration to ** link to functionality provided by Qt Designer and its related ** libraries. ** ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly ** granted herein. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/</span> #include <QtGui> #include "svgview.h" #include "svgwindow.h" SvgWindow::SvgWindow() : QScrollArea(), highQualityAntialiasing(false) { QWidget *view = new QWidget(this); renderer = SvgWindow::Native; setWidget(view); } void SvgWindow::openFile(const QString &file) { currentPath = file; setRenderer(renderer); } void SvgWindow::setRenderer(RendererType type) { renderer = type; QWidget *view; if (renderer == OpenGL) { #ifndef QT_NO_OPENGL view = new SvgGLView(currentPath, this); qobject_cast<SvgGLView *>(view)->setHighQualityAntialiasing(highQualityAntialiasing); #endif } else if (renderer == Image) { view = new SvgRasterView(currentPath, this); } else { view = new SvgNativeView(currentPath, this); } setWidget(view); view->show(); } void SvgWindow::setHighQualityAntialiasing(bool hq) { highQualityAntialiasing = hq; #ifndef QT_NO_OPENGL QWidget *view = widget(); if (renderer == OpenGL) qobject_cast<SvgGLView *>(view)->setHighQualityAntialiasing(highQualityAntialiasing); #endif } void SvgWindow::mousePressEvent(QMouseEvent *event) { mousePressPos = event->pos(); scrollBarValuesOnMousePress.rx() = horizontalScrollBar()->value(); scrollBarValuesOnMousePress.ry() = verticalScrollBar()->value(); event->accept(); } void SvgWindow::mouseMoveEvent(QMouseEvent *event) { if (mousePressPos.isNull()) { event->ignore(); return; } horizontalScrollBar()->setValue(scrollBarValuesOnMousePress.x() - event->pos().x() + mousePressPos.x()); verticalScrollBar()->setValue(scrollBarValuesOnMousePress.y() - event->pos().y() + mousePressPos.y()); horizontalScrollBar()->update(); verticalScrollBar()->update(); event->accept(); } void SvgWindow::mouseReleaseEvent(QMouseEvent *event) { mousePressPos = QPoint(); event->accept(); }</pre> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="30%">Copyright © 2008 <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 4.3.4</div></td> </tr></table></div></address></body> </html>