Wt::WLayoutItem Class Reference

An abstract base class for items that can participate in a layout. More...

#include <Wt/WLayoutItem>

Inheritance diagram for Wt::WLayoutItem:

List of all members.

Public Member Functions
virtual	~WLayoutItem ()
	Destructor.
virtual WWidgetItem *	findWidgetItem (WWidget *widget)=0
	Finds the widget item corresponding to the given widget
virtual WLayout *	layout ()=0
	Returns the layout that implements this WLayoutItem.
virtual WWidget *	widget ()=0
	Returns the widget that is held by this WLayoutItem.
virtual WLayout *	parentLayout () const =0
	Returns the layout in which this item is contained.
virtual WLayoutItemImpl *	impl () const =0
	Returns the implementation for this layout item.
Private Member Functions
virtual void	setParentWidget (WWidget *parent)=0
	Internal method.
virtual void	setParentLayout (WLayout *parentLayout)=0
	Internal method.

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Detailed Description

An abstract base class for items that can participate in a layout.

See also:

WLayout

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Member Function Documentation

virtual WWidgetItem* Wt::WLayoutItem::findWidgetItem

(

WWidget *

widget

)

[pure virtual]

Finds the widget item corresponding to the given widget

The widget is searched for recursively inside nested layouts.

Implemented in Wt::WLayout, and Wt::WWidgetItem.

virtual WLayoutItemImpl* Wt::WLayoutItem::impl

(

)

const [pure virtual]

Returns the implementation for this layout item.

The implementation of a layout item depends on the kind of container for which the layout does layout management.

Implemented in Wt::WLayout, and Wt::WWidgetItem.

virtual WLayout* Wt::WLayoutItem::layout

(

)

[pure virtual]

Returns the layout that implements this WLayoutItem.

This implements a type-safe upcasting mechanism to a WLayout.

Implemented in Wt::WLayout, and Wt::WWidgetItem.

virtual WWidget* Wt::WLayoutItem::widget

(

)

[pure virtual]

Returns the widget that is held by this WLayoutItem.

This implements a type-safe upcasting mechanism to a WWidgetItem.

Implemented in Wt::WLayout, and Wt::WWidgetItem.