Qt Reference Documentation

embeddedsvgviewer.h Example File

demos/embedded/embeddedsvgviewer/embeddedsvgviewer.h
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 #ifndef EMBEDDED_SVG_VIEWER_H
 #define EMBEDDED_SVG_VIEWER_H

 #include <QWidget>
 #include <QString>
 #include <QSvgRenderer>
 #include <QSize>
 #include <QMouseEvent>
 #include <QSlider>
 #include <QPushButton>

 class EmbeddedSvgViewer : public QWidget
 {
     Q_OBJECT
 public:
     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

 private:
     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);
 };

 #endif
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