Qt Reference Documentation

embeddedsvgviewer.h Example File

 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 ** This file is part of the demonstration applications of the Qt Toolkit.
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 ** This file contains pre-release code and may not be distributed.
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 ** contained in the Technology Preview License Agreement accompanying
 ** this package.
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 ** In addition, as a special exception, Nokia gives you certain additional
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 #include <QWidget>
 #include <QString>
 #include <QSvgRenderer>
 #include <QSize>
 #include <QMouseEvent>
 #include <QSlider>
 #include <QPushButton>

 class EmbeddedSvgViewer : public QWidget
     EmbeddedSvgViewer(const QString& filePath);
     virtual void paintEvent(QPaintEvent *event);
     void mouseMoveEvent ( QMouseEvent * event );
     void mousePressEvent ( QMouseEvent * event );
     void resizeEvent ( QResizeEvent * event );

 public slots:
     void setZoom(int); // 100 <= newZoom < 0

     QSvgRenderer* m_renderer;
     QSlider* m_zoomSlider;
     QPushButton* m_quitButton;
     QSize m_imageSize;
     qreal m_zoomLevel;
     qreal m_imageScale; // How many Image coords 1 widget pixel is worth

     QRectF m_viewBox;
     QRectF m_viewBoxBounds;
     QSizeF m_viewBoxSize;
     QPointF m_viewBoxCenter;
     QPointF m_viewBoxCenterOnMousePress;
     QPoint m_mousePress;

     void updateImageScale();
     QRectF getViewBox(QPointF viewBoxCenter);


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