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# QSpacerItem Class Reference

The QSpacerItem class provides blank space in a layout. More...

`#include <qlayout.h>`

Inherits QLayoutItem.

List of all member functions.

## Public Members

- QSpacerItem ( int w, int h, QSizePolicy::SizeType hData = QSizePolicy::Minimum, QSizePolicy::SizeType vData = QSizePolicy::Minimum )
- void changeSize ( int w, int h, QSizePolicy::SizeType hData = QSizePolicy::Minimum, QSizePolicy::SizeType vData = QSizePolicy::Minimum )
- virtual QSize sizeHint () const
- virtual QSize minimumSize () const
- virtual QSize maximumSize () const
- virtual QSizePolicy::ExpandData expanding () const
- virtual bool isEmpty () const
- virtual void setGeometry ( const QRect & r )

## Detailed Description

The QSpacerItem class provides blank space in a layout.

This class is used by custom layouts.

See also QLayout, Widget Appearance and Style and Layout Management.

## Member Function Documentation

### QSpacerItem::QSpacerItem ( int w, int h, QSizePolicy::SizeType hData = QSizePolicy::Minimum, QSizePolicy::SizeType vData = QSizePolicy::Minimum )

Constructs a spacer item with preferred width w, preferred height h, horizontal size policy hData and vertical size policy vData.

The default values provide a gap that is able to stretch if nothing else wants the space.

### void QSpacerItem::changeSize ( int w, int h, QSizePolicy::SizeType hData = QSizePolicy::Minimum, QSizePolicy::SizeType vData = QSizePolicy::Minimum )

Changes this spacer item to have preferred width w, preferred height h, horizontal size policy hData and vertical size policy vData.

The default values provide a gap that is able to stretch if nothing else wants the space.

### QSizePolicy::ExpandData QSpacerItem::expanding () const`[virtual]`

Returns TRUE if this spacer item is expanding; otherwise returns FALSE.

Reimplemented from QLayoutItem.

### bool QSpacerItem::isEmpty () const`[virtual]`

Returns TRUE because a spacer item never contains widgets.

Reimplemented from QLayoutItem.

### QSize QSpacerItem::maximumSize () const`[virtual]`

Returns the maximum size of this space item.

Reimplemented from QLayoutItem.

### QSize QSpacerItem::minimumSize () const`[virtual]`

Returns the minimum size of this spacer item.

Reimplemented from QLayoutItem.

### void QSpacerItem::setGeometry ( const QRect & r )`[virtual]`

Stores the spacer item's rect r so that it can be returned by geometry().

Reimplemented from QLayoutItem.

### QSize QSpacerItem::sizeHint () const`[virtual]`

Returns the preferred size of this spacer item.

Reimplemented from QLayoutItem.

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