trusty (3) QwtPlotSvgItem.3.gz

NAME

       QwtPlotSvgItem -

       A plot item, which displays data in Scalable Vector Graphics (SVG) format.

SYNOPSIS

       #include <qwt_plot_svgitem.h>

       Inherits QwtPlotItem.

   Public Member Functions
       QwtPlotSvgItem (const QString &title=QString::null)
       QwtPlotSvgItem (const QwtText &title)
       virtual ~QwtPlotSvgItem ()
       bool loadFile (const QRectF &, const QString &fileName)
       bool loadData (const QRectF &, const QByteArray &)
       virtual QRectF boundingRect () const
       virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &rect)
           const
       virtual int rtti () const

   Protected Member Functions
       const QSvgRenderer & renderer () const
       QSvgRenderer & renderer ()
       void render (QPainter *painter, const QRectF &viewBox, const QRectF &rect) const
       QRectF viewBox (const QRectF &area) const

Detailed Description

       A plot item, which displays data in Scalable Vector Graphics (SVG) format.

       SVG images are often used to display maps

Constructor & Destructor Documentation

   QwtPlotSvgItem::QwtPlotSvgItem (const QString &title = QString::null) [explicit]
       Constructor. Sets the following item attributes:

       • QwtPlotItem::AutoScale: true

       • QwtPlotItem::Legend: false

       Parameters:
           title Title

   QwtPlotSvgItem::QwtPlotSvgItem (const QwtText &title) [explicit]
       Constructor. Sets the following item attributes:

       • QwtPlotItem::AutoScale: true

       • QwtPlotItem::Legend: false

       Parameters:
           title Title

   QwtPlotSvgItem::~QwtPlotSvgItem () [virtual]
       Destructor.

Member Function Documentation

   QRectF QwtPlotSvgItem::boundingRect () const [virtual]
       Bounding rect of the item.

       Reimplemented from QwtPlotItem.

   void QwtPlotSvgItem::draw (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF
       &canvasRect) const [virtual] Draw the SVG item
       Parameters:
           painter Painter
           xMap X-Scale Map
           yMap Y-Scale Map
           canvasRect Contents rect of the plot canvas

       Implements QwtPlotItem.

   bool QwtPlotSvgItem::loadData (const QRectF &rect, const QByteArray &data) Load SVG data
       Parameters:
           rect Bounding rectangle
           data in SVG format

       Returns:
           true, if the SVG data could be loaded

   bool QwtPlotSvgItem::loadFile (const QRectF &rect, const QString &fileName) Load a SVG file
       Parameters:
           rect Bounding rectangle
           fileName SVG file name

       Returns:
           true, if the SVG file could be loaded

   void QwtPlotSvgItem::render (QPainter *painter, const QRectF &viewBox, const QRectF &rect) const [protected]
       Render the SVG data
       Parameters:
           painter Painter
           viewBox View Box, see QSvgRenderer::viewBox
           rect Traget rectangle on the paint device

   QSvgRenderer & QwtPlotSvgItem::renderer () [protected] Returns:
           Renderer used to render the SVG data

   const QSvgRenderer & QwtPlotSvgItem::renderer () const [protected] Returns:
           Renderer used to render the SVG data

   int QwtPlotSvgItem::rtti () const [virtual] Returns:
           QwtPlotItem::Rtti_PlotSVG

       Reimplemented from QwtPlotItem.

   QRectF QwtPlotSvgItem::viewBox (const QRectF &rect) const [protected] Calculate the viewBox from an rect and
       boundingRect().
       Parameters:
           rect Rectangle in scale coordinates

       Returns:
           viewBox View Box, see QSvgRenderer::viewBox

Author

       Generated automatically by Doxygen for Qwt User's Guide from the source code.