PlotTracker Class Reference

Mouse hover tracking. More...

#include <PlotTracker.hh>

Inherits QwtPlotPicker.

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

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

Detailed Description

Mouse hover tracking.

Constructor & Destructor Documentation

PlotTracker()

PlotTracker ( QwtPlotCanvas * _canvas )

explicit

Constructor.

Parameters

[in]

_canvas

Canvas the tracker will be attached to.

Member Function Documentation

trackerTextF()

virtual QwtText trackerTextF ( const QPointF & _pos ) const

protectedvirtual

Overriden to provide customized hover text.

Parameters

[in]

_pos

Mouse position

Returns

Text to display

Update()

void Update

(

)

Update the tracker text.

updateDisplay()

virtual void updateDisplay ( )

protectedvirtual

Overriden to update the hover line and tracker text.

widgetMousePressEvent()

virtual void widgetMousePressEvent ( QMouseEvent * _e )

protectedvirtual

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

Parameters

[in]

_e

Qt mouse event.

widgetMouseReleaseEvent()

virtual void widgetMouseReleaseEvent ( QMouseEvent * _e )

protectedvirtual

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

Parameters

[in]

_e

Qt mouse event.

---

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

• PlotTracker.hh