Qt Toolkit - QSpacerItem Class

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# QSpacerItem Class Reference

The QLayoutItem class that represents blank space. More...

`#include <qabstractlayout.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 & )

## Detailed Description

The QLayoutItem class that represents blank space.

For custom layouts.

See also QLayout.

## Member Function Documentation

### QSpacerItem::QSpacerItem ( int w, int h, QSizePolicy::SizeType hData=QSizePolicy::Minimum=QSizePolicy::Minimum, QSizePolicy::SizeType vData= QSizePolicy::Minimum= 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 gives 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 gives a gap that is able to stretch, if nothing else wants the space.

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

Returns whether this space item is expanding.

Reimplemented from QLayoutItem.

### QRect QSpacerItem::geometry () const `[virtual]`

Reimplemented for internal reasons; the API is not affected.

Reimplemented from QLayoutItem.

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

Returns TRUE, since a space 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 space item.

Reimplemented from QLayoutItem.

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

This function stores r, so it can be returned by geometry().

Reimplemented from QLayoutItem.

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

Returns the preferred size of this space item.

Reimplemented from QLayoutItem.

### QSpacerItem * QSpacerItem::spacerItem () `[virtual]`

Reimplemented for internal reasons; the API is not affected.

Reimplemented from QLayoutItem.

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