This filter listens to the visibility changes of a target widget, emitting signals whenever the visibility of that widget changes. More...

Inheritance diagram for VisibilityChangeListener:

Collaboration diagram for VisibilityChangeListener:

Signals
void	visibilityChanged (bool visible)

Public Member Functions
	VisibilityChangeListener (QWidget *targetWidget)
bool	eventFilter (QObject o, QEvent e) override

Private Attributes
QWidget *	targetWidget

Detailed Description

This filter listens to the visibility changes of a target widget, emitting signals whenever the visibility of that widget changes.

Constructor & Destructor Documentation

VisibilityChangeListener::VisibilityChangeListener ( QWidget * targetWidget )

explicit

Creates a new instance of this class, watching the targetWidget. This class automatically installs itself as an eventFilter to the targetWidget.

Parameters

targetWidget The widget to watch. Sets that widget as this object's parent.

bool VisibilityChangeListener::eventFilter	(	QObject *	o,
		QEvent *	e )

override

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void VisibilityChangeListener::visibilityChanged ( bool visible )

signal

Emitted whenever the target widget's visibility changes

Parameters

visible The widget's new visibility

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QWidget* VisibilityChangeListener::targetWidget

private

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