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QSpacerItem Class Reference
[QtGui module]

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

#include <QSpacerItem>

Inherits QLayoutItem.

Public Functions


Detailed Description

The QSpacerItem class provides blank space in a layout.

Normally, you don't need to use this class directly. Qt's built-in layout managers provide the following functions for manipulating empty space in layouts:

ClassFunctions
QHBoxLayoutaddSpacing(), addStretch(), insertSpacing(), insertStretch()
QGridLayoutsetRowMinimumHeight(), setRowStretch(), setColumnMinimumWidth(), setColumnStretch()

See also QLayout, QWidgetItem, and QLayoutItem::spacerItem().


Member Function Documentation

QSpacerItem::QSpacerItem ( int w, int h, QSizePolicy::Policy hPolicy = QSizePolicy::Minimum, QSizePolicy::Policy vPolicy = QSizePolicy::Minimum )

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

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::Policy hPolicy = QSizePolicy::Minimum, QSizePolicy::Policy vPolicy = QSizePolicy::Minimum )

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

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

bool QSpacerItem::isEmpty () const   [virtual]

Returns true.

Reimplemented from QLayoutItem.

QSpacerItem * QSpacerItem::spacerItem ()   [virtual]

Returns a pointer to this object.

Reimplemented from QLayoutItem.


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Qt 4.1.0
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