QSpacerItem Class Reference
The QSpacerItem class provides blank space in a layout.
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#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, QLayout::spacerItem(), 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.
Returns the direction in which this spacer item will expand.
See also QSizePolicy::ExpandData.
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 ( 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.
This file is part of the Qt toolkit.
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