Qwt User's Guide  6.0.2
Public Member Functions
QwtPlotAbstractSeriesItem Class Reference

#include <qwt_plot_seriesitem.h>

Inheritance diagram for QwtPlotAbstractSeriesItem:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 QwtPlotAbstractSeriesItem (const QString &title=QString::null)
 QwtPlotAbstractSeriesItem (const QwtText &title)
virtual ~QwtPlotAbstractSeriesItem ()
virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &) const
virtual void drawSeries (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const =0
Qt::Orientation orientation () const
void setOrientation (Qt::Orientation)
- Public Member Functions inherited from QwtPlotItem
 QwtPlotItem (const QwtText &title=QwtText())
virtual ~QwtPlotItem ()
void attach (QwtPlot *plot)
virtual QRectF boundingRect () const
void detach ()
void hide ()
bool isVisible () const
virtual void itemChanged ()
virtual QWidget * legendItem () const
QRectF paintRect (const QwtScaleMap &, const QwtScaleMap &) const
QwtPlotplot () const
virtual int rtti () 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

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

Base class for plot items representing a series of samples.


Constructor & Destructor Documentation

QwtPlotAbstractSeriesItem::QwtPlotAbstractSeriesItem ( const QString &  title = QString::null)
explicit

Constructor

Parameters:
titleTitle of the curve
QwtPlotAbstractSeriesItem::QwtPlotAbstractSeriesItem ( const QwtText title)
explicit

Constructor

Parameters:
titleTitle of the curve

Member Function Documentation

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

Draw the complete series.

Parameters:
painterPainter
xMapMaps x-values into pixel coordinates.
yMapMaps y-values into pixel coordinates.
canvasRectContents rect of the canvas

Implements QwtPlotItem.

virtual void QwtPlotAbstractSeriesItem::drawSeries ( QPainter *  painter,
const QwtScaleMap xMap,
const QwtScaleMap yMap,
const QRectF &  canvasRect,
int  from,
int  to 
) const
pure virtual

Draw a subset of the samples

Parameters:
painterPainter
xMapMaps x-values into pixel coordinates.
yMapMaps y-values into pixel coordinates.
canvasRectContents rect of the canvas
fromIndex of the first point to be painted
toIndex of the last point to be painted. If to < 0 the curve will be painted to its last point.

Implemented in QwtPlotCurve, QwtPlotIntervalCurve, QwtPlotHistogram, and QwtPlotSpectroCurve.

Qt::Orientation QwtPlotAbstractSeriesItem::orientation ( ) const
Returns:
Orientation of the plot item
See also:
setOrientation()
void QwtPlotAbstractSeriesItem::setOrientation ( Qt::Orientation  orientation)

Set the orientation of the item.

The orientation() might be used in specific way by a plot item. F.e. a QwtPlotCurve uses it to identify how to display the curve int QwtPlotCurve::Steps or QwtPlotCurve::Sticks style.

See also:
orientation()