PlotTracker Class Reference

Mouse hover tracking. More...

#include <PlotTracker.hh>

Inherits QwtPlotPicker.

Public Member Functions
	PlotTracker (QwtPlotCanvas *_canvas)
	Constructor. More...
void	Update ()
	Update the tracker text. More...

Protected Member Functions
virtual QwtText	trackerTextF (const QPointF &_pos) const
	Overriden to provide customized hover text. More...
virtual void	updateDisplay ()
	Overriden to update the hover line and tracker text. More...
virtual void	widgetMousePressEvent (QMouseEvent *_e)
	Mouse press event used to determine when to show/hide hover line. More...
virtual void	widgetMouseReleaseEvent (QMouseEvent *_e)
	Mouse release event used to determine when to show/hide hover line. More...

Detailed Description

Mouse hover tracking.

Constructor & Destructor Documentation

PlotTracker ( QwtPlotCanvas *  _canvas )

explicit

Constructor.

Parameters

[in]

_canvas

Canvas the tracker will be attached to.

Member Function Documentation

virtual QwtText trackerTextF ( const QPointF &  _pos ) const

protectedvirtual

Overriden to provide customized hover text.

Parameters

[in]

_pos

Mouse position

Returns

Text to display

void Update

(

)

Update the tracker text.

virtual void updateDisplay ( )

protectedvirtual

Overriden to update the hover line and tracker text.

virtual void widgetMousePressEvent ( QMouseEvent *  _e )

protectedvirtual

Mouse press event used to determine when to show/hide hover line.

Parameters

[in]

_e

Qt mouse event.

virtual void widgetMouseReleaseEvent ( QMouseEvent *  _e )

protectedvirtual

Mouse release event used to determine when to show/hide hover line.

Parameters

[in]

_e

Qt mouse event.

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

• PlotTracker.hh