Qwt User's Guide  6.0.2
Public Member Functions | Protected Member Functions
QwtPlotSvgItem Class Reference

#include <qwt_plot_svgitem.h>

Inheritance diagram for QwtPlotSvgItem:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 QwtPlotSvgItem (const QString &title=QString::null)
 QwtPlotSvgItem (const QwtText &title)
virtual ~QwtPlotSvgItem ()
virtual QRectF boundingRect () const
virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &rect) const
bool loadData (const QRectF &, const QByteArray &)
bool loadFile (const QRectF &, const QString &fileName)
virtual int rtti () const
- Public Member Functions inherited from QwtPlotItem
 QwtPlotItem (const QwtText &title=QwtText())
virtual ~QwtPlotItem ()
void attach (QwtPlot *plot)
void detach ()
void hide ()
bool isVisible () const
virtual void itemChanged ()
virtual QWidget * legendItem () const
QRectF paintRect (const QwtScaleMap &, const QwtScaleMap &) const
QwtPlotplot () const
QRectF scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
void setAxes (int xAxis, int yAxis)
void setItemAttribute (ItemAttribute, bool on=true)
void setRenderHint (RenderHint, bool on=true)
void setTitle (const QString &title)
void setTitle (const QwtText &title)
virtual void setVisible (bool)
void setXAxis (int axis)
void setYAxis (int axis)
void setZ (double z)
void show ()
bool testItemAttribute (ItemAttribute) const
bool testRenderHint (RenderHint) const
const QwtTexttitle () const
virtual void updateLegend (QwtLegend *) const
virtual void updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
int xAxis () const
int yAxis () const
double z () const
- Public Member Functions inherited from QwtLegendItemManager
 QwtLegendItemManager ()
virtual ~QwtLegendItemManager ()
virtual void drawLegendIdentifier (QPainter *, const QRectF &) const

Protected Member Functions

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

Additional Inherited Members

- Public Types inherited from QwtPlotItem
enum  ItemAttribute {
  Legend = 0x01,
  AutoScale = 0x02
}
typedef QFlags< ItemAttributeItemAttributes
enum  RenderHint { RenderAntialiased = 1 }
typedef QFlags< RenderHintRenderHints
enum  RttiValues {
  Rtti_PlotItem = 0,
  Rtti_PlotGrid,
  Rtti_PlotScale,
  Rtti_PlotMarker,
  Rtti_PlotCurve,
  Rtti_PlotSpectroCurve,
  Rtti_PlotIntervalCurve,
  Rtti_PlotHistogram,
  Rtti_PlotSpectrogram,
  Rtti_PlotSVG,
  Rtti_PlotUserItem = 1000
}

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:

Parameters:
titleTitle
QwtPlotSvgItem::QwtPlotSvgItem ( const QwtText title)
explicit

Constructor.

Sets the following item attributes:

Parameters:
titleTitle

Member Function Documentation

void QwtPlotSvgItem::draw ( QPainter *  painter,
const QwtScaleMap xMap,
const QwtScaleMap yMap,
const QRectF &  canvasRect 
) const
virtual

Draw the SVG item

Parameters:
painterPainter
xMapX-Scale Map
yMapY-Scale Map
canvasRectContents rect of the plot canvas

Implements QwtPlotItem.

bool QwtPlotSvgItem::loadData ( const QRectF &  rect,
const QByteArray &  data 
)

Load SVG data

Parameters:
rectBounding rectangle
datain 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:
rectBounding rectangle
fileNameSVG 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:
painterPainter
viewBoxView Box, see QSvgRenderer::viewBox
rectTraget rectangle on the paint device
const QSvgRenderer & QwtPlotSvgItem::renderer ( ) const
protected
Returns:
Renderer used to render the SVG data
QSvgRenderer & QwtPlotSvgItem::renderer ( )
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:
rectRectangle in scale coordinates
Returns:
viewBox View Box, see QSvgRenderer::viewBox