Question

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

#include <qlayout.h>

Inherits QLayoutItem.

List of all member functions.

Public Members

• QSpacerItem ( intw, inth, QSizePolicy::SizeTypehData = QSizePolicy::Minimum, QSizePolicy::SizeTypevData = QSizePolicy::Minimum )
• void changeSize ( intw, inth, QSizePolicy::SizeTypehData = QSizePolicy::Minimum, QSizePolicy::SizeTypevData = 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 ( constQRect&r )

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Detailed Description

The QSpacerItem class provides blank space in a layout.

This class is used by custom layouts.

See also QLayout, QLayout::spacerItem(), Widget Appearance and Style and Layout Management.

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Member Function Documentation

QSpacerItem::QSpacerItem ( intw, inth, QSizePolicy::SizeTypehData = QSizePolicy::Minimum, QSizePolicy::SizeTypevData = 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 ( intw, inth, QSizePolicy::SizeTypehData = QSizePolicy::Minimum, QSizePolicy::SizeTypevData = 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 spacer item.

Reimplemented from QLayoutItem.

QSize QSpacerItem::minimumSize () const [virtual]

Returns the minimum size of this spacer item.

Reimplemented from QLayoutItem.

void QSpacerItem::setGeometry ( constQRect&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.