Classes | Public Member Functions | Protected Member Functions | Private Attributes | List of all members
QwtPlotSeriesItem Class Referenceabstract

Base class for plot items representing a series of samples. More...

#include <qwt_plot_seriesitem.h>

Inheritance diagram for QwtPlotSeriesItem:
Inheritance graph
[legend]

Classes

class  PrivateData
 

Public Member Functions

virtual QRectF boundingRect () const
 
virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &) const
 Draw the complete series. More...
 
virtual void drawSeries (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const =0
 
Qt::Orientation orientation () const
 
 QwtPlotSeriesItem (const QString &title=QString())
 
 QwtPlotSeriesItem (const QwtText &title)
 
void setOrientation (Qt::Orientation)
 
virtual void updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
 Update the item to changes of the axes scale division. More...
 
virtual ~QwtPlotSeriesItem ()
 Destructor. More...
 
- Public Member Functions inherited from QwtPlotItem
void attach (QwtPlot *plot)
 Attach the item to a plot. More...
 
void detach ()
 This method detaches a QwtPlotItem from any QwtPlot it has been associated with. More...
 
virtual void getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasSize, double &left, double &top, double &right, double &bottom) const
 Calculate a hint for the canvas margin. More...
 
void hide ()
 Hide the item. More...
 
bool isVisible () const
 
virtual void itemChanged ()
 
virtual void legendChanged ()
 
virtual QList< QwtLegendDatalegendData () const
 Return all information, that is needed to represent the item on the legend. More...
 
virtual QwtGraphic legendIcon (int index, const QSizeF &) const
 
QSize legendIconSize () const
 
QRectF paintRect (const QwtScaleMap &, const QwtScaleMap &) const
 Calculate the bounding paint rectangle of 2 maps. More...
 
QwtPlotplot () const
 Return attached plot. More...
 
 QwtPlotItem (const QwtText &title=QwtText())
 
uint renderThreadCount () const
 
virtual int rtti () const
 
QRectF scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
 Calculate the bounding scale rectangle of 2 maps. More...
 
void setAxes (int xAxis, int yAxis)
 
void setItemAttribute (ItemAttribute, bool on=true)
 
void setItemInterest (ItemInterest, bool on=true)
 
void setLegendIconSize (const QSize &)
 
void setRenderHint (RenderHint, bool on=true)
 
void setRenderThreadCount (uint numThreads)
 
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)
 Set the z value. More...
 
void show ()
 Show the item. More...
 
bool testItemAttribute (ItemAttribute) const
 
bool testItemInterest (ItemInterest) const
 
bool testRenderHint (RenderHint) const
 
const QwtTexttitle () const
 
virtual void updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
 Update the item to changes of the legend info. More...
 
int xAxis () const
 Return xAxis. More...
 
int yAxis () const
 Return yAxis. More...
 
double z () const
 
virtual ~QwtPlotItem ()
 Destroy the QwtPlotItem. More...
 

Protected Member Functions

virtual void dataChanged ()
 dataChanged() indicates, that the series has been changed. More...
 
- Protected Member Functions inherited from QwtPlotItem
QwtGraphic defaultIcon (const QBrush &, const QSizeF &) const
 Return a default icon from a brush. More...
 
- Protected Member Functions inherited from QwtAbstractSeriesStore
virtual QRectF dataRect () const =0
 
virtual size_t dataSize () const =0
 
virtual void setRectOfInterest (const QRectF &)=0
 
virtual ~QwtAbstractSeriesStore ()
 Destructor. More...
 

Private Attributes

PrivateDatad_data
 

Additional Inherited Members

- Public Types inherited from QwtPlotItem
enum  ItemAttribute { Legend = 0x01, AutoScale = 0x02, Margins = 0x04 }
 Plot Item Attributes. More...
 
typedef QFlags< ItemAttributeItemAttributes
 Plot Item Attributes. More...
 
enum  ItemInterest { ScaleInterest = 0x01, LegendInterest = 0x02 }
 Plot Item Interests. More...
 
typedef QFlags< ItemInterestItemInterests
 Plot Item Interests. More...
 
enum  RenderHint { RenderAntialiased = 0x1 }
 Render hints. More...
 
typedef QFlags< RenderHintRenderHints
 Render hints. More...
 
enum  RttiValues {
  Rtti_PlotItem = 0, Rtti_PlotGrid, Rtti_PlotScale, Rtti_PlotLegend,
  Rtti_PlotMarker, Rtti_PlotCurve, Rtti_PlotSpectroCurve, Rtti_PlotIntervalCurve,
  Rtti_PlotHistogram, Rtti_PlotSpectrogram, Rtti_PlotSVG, Rtti_PlotTradingCurve,
  Rtti_PlotBarChart, Rtti_PlotMultiBarChart, Rtti_PlotShape, Rtti_PlotTextLabel,
  Rtti_PlotZone, Rtti_PlotUserItem = 1000
}
 Runtime type information. More...
 

Detailed Description

Base class for plot items representing a series of samples.

Definition at line 22 of file qwt_plot_seriesitem.h.

Constructor & Destructor Documentation

QwtPlotSeriesItem::QwtPlotSeriesItem ( const QString &  title = QString())
explicit

Constructor

Parameters
titleTitle of the curve

Definition at line 38 of file qwt_plot_seriesitem.cpp.

QwtPlotSeriesItem::QwtPlotSeriesItem ( const QwtText title)
explicit

Constructor

Parameters
titleTitle of the curve

Definition at line 27 of file qwt_plot_seriesitem.cpp.

QwtPlotSeriesItem::~QwtPlotSeriesItem ( )
virtual

Destructor.

Definition at line 45 of file qwt_plot_seriesitem.cpp.

Member Function Documentation

QRectF QwtPlotSeriesItem::boundingRect ( ) const
virtual
Returns
An invalid bounding rect: QRectF(1.0, 1.0, -2.0, -2.0)
Note
A width or height < 0.0 is ignored by the autoscaler

Reimplemented from QwtPlotItem.

Reimplemented in QwtPlotTradingCurve, QwtPlotIntervalCurve, QwtPlotHistogram, QwtPlotBarChart, and QwtPlotMultiBarChart.

Definition at line 94 of file qwt_plot_seriesitem.cpp.

void QwtPlotSeriesItem::dataChanged ( )
protectedvirtual

dataChanged() indicates, that the series has been changed.

Implements QwtAbstractSeriesStore.

Definition at line 109 of file qwt_plot_seriesitem.cpp.

void QwtPlotSeriesItem::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 rectangle of the canvas

Implements QwtPlotItem.

Definition at line 87 of file qwt_plot_seriesitem.cpp.

virtual void QwtPlotSeriesItem::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 rectangle 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, QwtPlotTradingCurve, QwtPlotIntervalCurve, QwtPlotHistogram, QwtPlotBarChart, QwtPlotMultiBarChart, and QwtPlotSpectroCurve.

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

Definition at line 74 of file qwt_plot_seriesitem.cpp.

void QwtPlotSeriesItem::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()

Definition at line 59 of file qwt_plot_seriesitem.cpp.

void QwtPlotSeriesItem::updateScaleDiv ( const QwtScaleDiv xScaleDiv,
const QwtScaleDiv yScaleDiv 
)
virtual

Update the item to changes of the axes scale division.

Update the item, when the axes of plot have changed. The default implementation does nothing, but items that depend on the scale division (like QwtPlotGrid()) have to reimplement updateScaleDiv()

updateScaleDiv() is only called when the ScaleInterest interest is enabled. The default implementation does nothing.

Parameters
xScaleDivScale division of the x-axis
yScaleDivScale division of the y-axis
See also
QwtPlot::updateAxes(), ScaleInterest

Reimplemented from QwtPlotItem.

Definition at line 99 of file qwt_plot_seriesitem.cpp.

Member Data Documentation

PrivateData* QwtPlotSeriesItem::d_data
private

Definition at line 62 of file qwt_plot_seriesitem.h.


The documentation for this class was generated from the following files:


plotjuggler
Author(s): Davide Faconti
autogenerated on Sat Jul 6 2019 03:44:19