QwtPlotScaleEventDispatcher Class Reference

Event filter for parasitic plots, handling axis interactions. More...

#include <qwt_plot_scale_event_dispatcher.h>

Inheritance diagram for QwtPlotScaleEventDispatcher:

Classes
class	PrivateData

Public Slots
void	updateCache ()
	Update cache.
void	setEnable (bool on=true)
	Set enabled state.

Public Member Functions
	QwtPlotScaleEventDispatcher (QwtPlot *plot, QObject *par=nullptr)
	Constructor.
	~QwtPlotScaleEventDispatcher ()
	Destructor.
bool	isEnable () const
	Check if enabled.

Static Public Member Functions
static QwtAxisId	findAxisIdByScaleWidget (const QwtPlot *plot, const QwtScaleWidget *scaleWidget)
	Find axis ID corresponding to QwtScaleWidget.

Protected Member Functions
virtual bool	eventFilter (QObject *obj, QEvent *e) override
void	rebuildCache ()
	重建所有缓存数据，在有新的寄生绘图添加时，都需要调用此函数，把绘图的坐标轴缓存
virtual bool	handleMousePress (QwtPlot *bindPlot, QMouseEvent *e)
virtual bool	handleMouseMove (QwtPlot *bindPlot, QMouseEvent *e)
virtual bool	handleMouseRelease (QwtPlot *bindPlot, QMouseEvent *e)
virtual bool	handleWheelEvent (QwtPlot *bindPlot, QWheelEvent *e)
QwtScaleWidget *	findTargetOnScale (const QPoint &pos)

Detailed Description

Event filter for parasitic plots, handling axis interactions.

Constructor & Destructor Documentation

QwtPlotScaleEventDispatcher()

QwtPlotScaleEventDispatcher::QwtPlotScaleEventDispatcher ( QwtPlot *  plot, QObject *  par = nullptr  )

explicit

Constructor.

Member Function Documentation

findAxisIdByScaleWidget()

QwtAxisId QwtPlotScaleEventDispatcher::findAxisIdByScaleWidget ( const QwtPlot *  plot, const QwtScaleWidget *  scaleWidget  )

static

Find axis ID corresponding to QwtScaleWidget.

isEnable()

bool QwtPlotScaleEventDispatcher::isEnable

(

)

const

Check if enabled.

setEnable

void QwtPlotScaleEventDispatcher::setEnable ( bool  on = true )

slot

Set enabled state.

updateCache

void QwtPlotScaleEventDispatcher::updateCache ( )

slot

Update cache.

Update cache, rebuild if necessary.

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

• /home/runner/work/QWT/QWT/src/plot/qwt_plot_scale_event_dispatcher.h
• /home/runner/work/QWT/QWT/src/plot/qwt_plot_scale_event_dispatcher.cpp