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QGraphicsSimpleTextItem Class Reference
[QtGui module]

The QGraphicsSimpleTextItem class provides a simple text path item that you can add to a QGraphicsScene. More...

 #include <QGraphicsSimpleTextItem>

Inherits QAbstractGraphicsShapeItem.

This class was introduced in Qt 4.2.


Public Functions

QGraphicsSimpleTextItem ( QGraphicsItem * parent = 0 )
QGraphicsSimpleTextItem ( const QString & text, QGraphicsItem * parent = 0 )
~QGraphicsSimpleTextItem ()
QFont font () const
void setFont ( const QFont & font )
void setText ( const QString & text )
QString text () const

Reimplemented Public Functions

virtual QRectF boundingRect () const
virtual bool contains ( const QPointF & point ) const
virtual bool isObscuredBy ( const QGraphicsItem * item ) const
virtual QPainterPath opaqueArea () const
virtual void paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )
virtual QPainterPath shape () const
virtual int type () const

Additional Inherited Members


Detailed Description

The QGraphicsSimpleTextItem class provides a simple text path item that you can add to a QGraphicsScene.

To set the item's text, you can either pass a QString to QGraphicsSimpleTextItem's constructor, or call setText() to change the text later. To set the text fill color, call setBrush().

The simple text item can have both a fill and an outline; setBrush() will set the text fill (i.e., text color), and setPen() sets the pen that will be used to draw the text outline. (The latter can be slow, especially for complex pens, and items with long text content.) If all you want is to draw a simple line of text, you should call setBrush() only, and leave the pen unset; QGraphicsSimpleTextItem's pen is by default Qt::NoPen.

QGraphicsSimpleTextItem uses the text's formatted size and the associated font to provide a reasonable implementation of boundingRect(), shape(), and contains(). You can set the font by calling setFont().

QGraphicsSimpleText does not display rich text; instead, you can use QGraphicsTextItem, which provides full text control capabilities.

See also QGraphicsTextItem, QGraphicsPathItem, QGraphicsRectItem, QGraphicsEllipseItem, QGraphicsPixmapItem, QGraphicsPolygonItem, QGraphicsLineItem, and The Graphics View Framework.


Member Function Documentation

QGraphicsSimpleTextItem::QGraphicsSimpleTextItem ( QGraphicsItem * parent = 0 )

Constructs a QGraphicsSimpleTextItem.

parent is passed to QGraphicsItem's constructor.

See also QGraphicsScene::addItem().

QGraphicsSimpleTextItem::QGraphicsSimpleTextItem ( const QString & text, QGraphicsItem * parent = 0 )

Constructs a QGraphicsSimpleTextItem, using text as the default plain text.

parent is passed to QGraphicsItem's constructor.

See also QGraphicsScene::addItem().

QGraphicsSimpleTextItem::~QGraphicsSimpleTextItem ()

Destroys the QGraphicsSimpleTextItem.

QRectF QGraphicsSimpleTextItem::boundingRect () const   [virtual]

Reimplemented from QGraphicsItem::boundingRect().

bool QGraphicsSimpleTextItem::contains ( const QPointF & point ) const   [virtual]

Reimplemented from QGraphicsItem::contains().

QFont QGraphicsSimpleTextItem::font () const

Returns the font that is used to draw the item's text.

See also setFont().

bool QGraphicsSimpleTextItem::isObscuredBy ( const QGraphicsItem * item ) const   [virtual]

Reimplemented from QGraphicsItem::isObscuredBy().

QPainterPath QGraphicsSimpleTextItem::opaqueArea () const   [virtual]

Reimplemented from QGraphicsItem::opaqueArea().

void QGraphicsSimpleTextItem::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )   [virtual]

Reimplemented from QGraphicsItem::paint().

void QGraphicsSimpleTextItem::setFont ( const QFont & font )

Sets the font that is used to draw the item's text to font.

See also font().

void QGraphicsSimpleTextItem::setText ( const QString & text )

Sets the item's text to text. The text will be displayed as plain text. Newline characters ('\n') as well as characters of type QChar::LineSeparator will cause item to break the text into multiple lines.

See also text().

QPainterPath QGraphicsSimpleTextItem::shape () const   [virtual]

Reimplemented from QGraphicsItem::shape().

QString QGraphicsSimpleTextItem::text () const

Returns the item's text.

See also setText().

int QGraphicsSimpleTextItem::type () const   [virtual]

Reimplemented from QGraphicsItem::type().


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Qt 4.6.3