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

Inheritance diagram for QSpacerItem:

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

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

Qt::Orientations	expandingDirections () const override

QRect	geometry () const override

bool	isEmpty () const override

QSize	maximumSize () const override

QSize	minimumSize () const override

void	setGeometry (const QRect &rect) override

QSize	sizeHint () const override

QSizePolicy	sizePolicy () const

QSpacerItem *	spacerItem () override

Public Methods inherited from QLayoutItem
	QLayoutItem (Qt::Alignment alignment=Qt::Alignment ())

virtual	~QLayoutItem ()

Qt::Alignment	alignment () const

virtual QSizePolicy::ControlTypes	controlTypes () const

virtual bool	hasHeightForWidth () const

virtual int	heightForWidth (int width) const

virtual void	invalidate ()

virtual QLayout *	layout ()

virtual int	minimumHeightForWidth (int width) const

void	setAlignment (Qt::Alignment alignment)

virtual QWidget *	widget ()

Detailed Description

The QSpacerItem class provides blank space in a layout. Normally, you do not need to use this class directly. The CopperSpice built-in layout managers provide the following methods for crearting empty space in layouts.

Class	Functions
QHBoxLayout	addSpacing(), addStretch(), insertSpacing(), insertStretch()
QGridLayout	setRowMinimumHeight(), setRowStretch(), setColumnMinimumWidth(), setColumnStretch()

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

Constructor & Destructor Documentation

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

inline

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.

Method Documentation

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.

Note that if changeSize() is called after the spacer item has been added to a layout, it is necessary to invalidate the layout in order for the spacer item's new size to take effect.