makVrv::DtDeselectableTreeWidget Class Reference

A tree widget that allows for selecting no item. More...

Inheritance diagram for makVrv::DtDeselectableTreeWidget:

List of all members.

Public Member Functions
	DtDeselectableTreeWidget (QWidget *parent)
	CTOR.
Protected Slots
virtual void	rowsInserted (const QModelIndex &parent, int start, int end)
	Handle when rows are inserted into the tree.
virtual void	rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
	Handle when rows are removed from the tree.
Protected Member Functions
virtual void	mousePressEvent (QMouseEvent *event)
	Handle mouse press events on the widget.
virtual bool	eventFilter (QObject *obj, QEvent *event)
	Handle events on the widget.

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Detailed Description

A tree widget that allows for selecting no item.

Mouse clicking on any item in the tree will switch the selection-focus normally. Clicking white space off the tree will remove selection-focus from the current items.

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Constructor & Destructor Documentation

makVrv::DtDeselectableTreeWidget::DtDeselectableTreeWidget

(

QWidget *

parent

)

CTOR.

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Member Function Documentation

virtual void makVrv::DtDeselectableTreeWidget::mousePressEvent

(

QMouseEvent *

event

)

[protected, virtual]

Handle mouse press events on the widget.

This handler identifies where the mouse clicked on the tree. If the click was on an item, the event is handled normally. If the click was not on an item, any selected item becomes un-selected.

virtual bool makVrv::DtDeselectableTreeWidget::eventFilter	(	QObject *	obj,
		QEvent *	event
	)		[protected, virtual]

Handle events on the widget.

This handler un-selects all items when the widget is hidden so no item is selected when the widget is re-shown. The handler reselects the current item when the widget is activated. The re-selection forces the item to visually display focus, giving feedback to the user.

virtual void makVrv::DtDeselectableTreeWidget::rowsInserted	(	const QModelIndex &	parent,
		int	start,
		int	end
	)		[protected, virtual, slot]

Handle when rows are inserted into the tree.

This handler clears the current selected item.

virtual void makVrv::DtDeselectableTreeWidget::rowsAboutToBeRemoved	(	const QModelIndex &	parent,
		int	start,
		int	end
	)		[protected, virtual, slot]

Handle when rows are removed from the tree.

This handler clears the current selected item.

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

• include/vrvCoreQt/DtDeselectableTreeWidget.h