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com.trolltech.qt.gui
Class QGraphicsRectItem

java.lang.Object
  extended by com.trolltech.qt.QSignalEmitter
      extended by com.trolltech.qt.QtJambiObject
          extended by com.trolltech.qt.gui.QAbstractGraphicsShapeItem
              extended by com.trolltech.qt.gui.QGraphicsRectItem
All Implemented Interfaces:
QGraphicsItemInterface, QtJambiInterface

public class QGraphicsRectItem
extends QAbstractGraphicsShapeItem

The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.

To set the item's rectangle, pass a QRectF to QGraphicsRectItem's constructor, or call the setRect function. The rect function returns the current rectangle.

QGraphicsRectItem uses the rectangle and the pen width to provide a reasonable implementation of boundingRect, shape, and contains. The paint function draws the rectangle using the item's associated pen and brush, which you can set by calling the setPen and setBrush functions.

See Also:
QGraphicsPathItem, QGraphicsEllipseItem, QGraphicsPolygonItem, QGraphicsTextItem, QGraphicsLineItem, QGraphicsPixmapItem, The Graphics View Framework

Nested Class Summary
static class QGraphicsRectItem.enum_1
          Press link for info on QGraphicsRectItem.enum_1
 
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1<A>, QSignalEmitter.Signal2<A,B>, QSignalEmitter.Signal3<A,B,C>, QSignalEmitter.Signal4<A,B,C,D>, QSignalEmitter.Signal5<A,B,C,D,E>, QSignalEmitter.Signal6<A,B,C,D,E,F>, QSignalEmitter.Signal7<A,B,C,D,E,F,G>, QSignalEmitter.Signal8<A,B,C,D,E,F,G,H>, QSignalEmitter.Signal9<A,B,C,D,E,F,G,H,I>
 
Constructor Summary
QGraphicsRectItem()
          Equivalent to QGraphicsRectItem(, 0).
QGraphicsRectItem(double x, double y, double w, double h)
          Creates a new QGraphicsRectItem of which top-left corner is (x, y), width is w, and height is h.
QGraphicsRectItem(double x, double y, double w, double h, QGraphicsItemInterface parent)
          Creates a new QGraphicsRectItem of which top-left corner is (x, y), width is w, and height is h.
QGraphicsRectItem(double x, double y, double w, double h, QGraphicsItemInterface parent, QGraphicsScene scene)
          Creates a new QGraphicsRectItem of which top-left corner is (x, y), width is w, and height is h.
QGraphicsRectItem(QGraphicsItemInterface parent)
          Equivalent to QGraphicsRectItem(parent, 0).
QGraphicsRectItem(QGraphicsItemInterface parent, QGraphicsScene scene)
          Constructs a QGraphicsRectItem, using parent as the default rectangle.
QGraphicsRectItem(QRectF rect)
          Creates a new QGraphicsRectItem with the specified bounds rect.
QGraphicsRectItem(QRectF rect, QGraphicsItemInterface parent)
          Creates a new QGraphicsRectItem with the specified bounds rect and parent.
QGraphicsRectItem(QRectF rect, QGraphicsItemInterface parent, QGraphicsScene scene)
          Creates a new QGraphicsRectItem with the specified bounds rect, parent, and then adds it to scene.
 
Method Summary
 QRectF boundingRect()
          This function is reimplemented for internal reasons.
 boolean contains(QPointF point)
          This function is reimplemented for internal reasons.
 java.lang.Object extension(java.lang.Object variant)
          This function is reimplemented for internal reasons.
static QGraphicsRectItem fromNativePointer(QNativePointer nativePointer)
          This function returns the QGraphicsRectItem instance pointed to by nativePointer
 boolean isObscuredBy(QGraphicsItemInterface item)
          This function is reimplemented for internal reasons.
 QPainterPath opaqueArea()
          This function is reimplemented for internal reasons.
 void paint(QPainter painter, QStyleOptionGraphicsItem option, QWidget widget)
          This function is reimplemented for internal reasons.
 QRectF rect()
          Returns the item's rectangle.
 void setExtension(QGraphicsItem.Extension extension, java.lang.Object variant)
          
 void setRect(double x, double y, double w, double h)
          Sets the item's rectangle to the rectangle defined by (x, y) and the given w and h.
 void setRect(QRectF rect)
          Sets the item's rectangle to be the given rect.
 QPainterPath shape()
          This function is reimplemented for internal reasons.
 boolean supportsExtension(QGraphicsItem.Extension extension)
          
 int type()
          This function is reimplemented for internal reasons.
 
Methods inherited from class com.trolltech.qt.gui.QAbstractGraphicsShapeItem
acceptDrops, acceptedMouseButtons, acceptsHoverEvents, addToIndex, advance, brush, childItems, childrenBoundingRect, clearFocus, collidesWithItem, collidesWithPath, collidingItems, contextMenuEvent, cursor, data, deviceTransform, dragEnterEvent, dragLeaveEvent, dragMoveEvent, dropEvent, ensureVisible, ensureVisible, flags, focusInEvent, focusOutEvent, group, handlesChildEvents, hasCursor, hasFocus, hide, hoverEnterEvent, hoverLeaveEvent, hoverMoveEvent, inputMethodEvent, inputMethodQuery, installSceneEventFilter, isAncestorOf, isEnabled, isObscured, isObscured, isObscured, isSelected, isVisible, itemChange, keyPressEvent, keyReleaseEvent, mapFromItem, mapFromItem, mapFromItem, mapFromItem, mapFromItem, mapFromItem, mapFromParent, mapFromParent, mapFromParent, mapFromParent, mapFromParent, mapFromParent, mapFromScene, mapFromScene, mapFromScene, mapFromScene, mapFromScene, mapFromScene, mapToItem, mapToItem, mapToItem, mapToItem, mapToItem, mapToItem, mapToParent, mapToParent, mapToParent, mapToParent, mapToParent, mapToParent, mapToScene, mapToScene, mapToScene, mapToScene, mapToScene, mapToScene, mouseDoubleClickEvent, mouseMoveEvent, mousePressEvent, mouseReleaseEvent, moveBy, parentItem, pen, pos, prepareGeometryChange, removeFromIndex, removeSceneEventFilter, resetTransform, rotate, scale, scene, sceneBoundingRect, sceneEvent, sceneEventFilter, scenePos, sceneTransform, setAcceptDrops, setAcceptedMouseButtons, setAcceptsHoverEvents, setBrush, setCursor, setData, setEnabled, setFlag, setFlags, setFocus, setGroup, setHandlesChildEvents, setParentItem, setPen, setPos, setPos, setSelected, setToolTip, setTransform, setVisible, setZValue, shear, show, toolTip, topLevelItem, transform, translate, unsetCursor, update, update, wheelEvent, x, y, zValue
 
Methods inherited from class com.trolltech.qt.QtJambiObject
dispose, disposed, finalize, reassignNativeResources, tr, tr, tr
 
Methods inherited from class com.trolltech.qt.QSignalEmitter
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface com.trolltech.qt.QtJambiInterface
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership
 

Constructor Detail

QGraphicsRectItem

public QGraphicsRectItem(double x,
                         double y,
                         double w,
                         double h,
                         QGraphicsItemInterface parent)
Creates a new QGraphicsRectItem of which top-left corner is (x, y), width is w, and height is h. It will have the specified parent.


QGraphicsRectItem

public QGraphicsRectItem(double x,
                         double y,
                         double w,
                         double h)
Creates a new QGraphicsRectItem of which top-left corner is (x, y), width is w, and height is h.


QGraphicsRectItem

public QGraphicsRectItem(double x,
                         double y,
                         double w,
                         double h,
                         QGraphicsItemInterface parent,
                         QGraphicsScene scene)
Creates a new QGraphicsRectItem of which top-left corner is (x, y), width is w, and height is h. It will have the specified parent and scene.


QGraphicsRectItem

public QGraphicsRectItem(QGraphicsItemInterface parent)

Equivalent to QGraphicsRectItem(parent, 0).


QGraphicsRectItem

public QGraphicsRectItem()

Equivalent to QGraphicsRectItem(, 0).


QGraphicsRectItem

public QGraphicsRectItem(QGraphicsItemInterface parent,
                         QGraphicsScene scene)

Constructs a QGraphicsRectItem, using parent as the default rectangle. scene is passed to QAbstractGraphicsShapeItem's constructor.

See Also:
QGraphicsScene::addItem

QGraphicsRectItem

public QGraphicsRectItem(QRectF rect,
                         QGraphicsItemInterface parent)
Creates a new QGraphicsRectItem with the specified bounds rect and parent.


QGraphicsRectItem

public QGraphicsRectItem(QRectF rect)
Creates a new QGraphicsRectItem with the specified bounds rect.


QGraphicsRectItem

public QGraphicsRectItem(QRectF rect,
                         QGraphicsItemInterface parent,
                         QGraphicsScene scene)
Creates a new QGraphicsRectItem with the specified bounds rect, parent, and then adds it to scene.

Method Detail

rect

public final QRectF rect()

Returns the item's rectangle.

See Also:
setRect

setRect

public final void setRect(QRectF rect)

Sets the item's rectangle to be the given rect.

See Also:
rect

setRect

public final void setRect(double x,
                          double y,
                          double w,
                          double h)

Sets the item's rectangle to the rectangle defined by (x, y) and the given w and h.

This convenience function is equivalent to calling setRect(QRectF(x, y, width, height))

See Also:
rect

boundingRect

public QRectF boundingRect()

This function is reimplemented for internal reasons.

Specified by:
boundingRect in interface QGraphicsItemInterface
Specified by:
boundingRect in class QAbstractGraphicsShapeItem
See Also:
shape, contains, The Graphics View Coordinate System, prepareGeometryChange

contains

public boolean contains(QPointF point)

This function is reimplemented for internal reasons.

Specified by:
contains in interface QGraphicsItemInterface
Overrides:
contains in class QAbstractGraphicsShapeItem
See Also:
shape, boundingRect, collidesWithPath

extension

public java.lang.Object extension(java.lang.Object variant)

This function is reimplemented for internal reasons.

Specified by:
extension in interface QGraphicsItemInterface
Overrides:
extension in class QAbstractGraphicsShapeItem
See Also:
setExtension

isObscuredBy

public boolean isObscuredBy(QGraphicsItemInterface item)

This function is reimplemented for internal reasons.

Specified by:
isObscuredBy in interface QGraphicsItemInterface
Overrides:
isObscuredBy in class QAbstractGraphicsShapeItem
See Also:
opaqueArea, isObscured

opaqueArea

public QPainterPath opaqueArea()

This function is reimplemented for internal reasons.

Specified by:
opaqueArea in interface QGraphicsItemInterface
Overrides:
opaqueArea in class QAbstractGraphicsShapeItem
See Also:
isObscuredBy, isObscured, shape

paint

public void paint(QPainter painter,
                  QStyleOptionGraphicsItem option,
                  QWidget widget)

This function is reimplemented for internal reasons.

Specified by:
paint in interface QGraphicsItemInterface
Specified by:
paint in class QAbstractGraphicsShapeItem

setExtension

public void setExtension(QGraphicsItem.Extension extension,
                         java.lang.Object variant)

Specified by:
setExtension in interface QGraphicsItemInterface
Overrides:
setExtension in class QAbstractGraphicsShapeItem
See Also:
extension

shape

public QPainterPath shape()

This function is reimplemented for internal reasons.

Specified by:
shape in interface QGraphicsItemInterface
Overrides:
shape in class QAbstractGraphicsShapeItem
See Also:
boundingRect, contains, prepareGeometryChange

supportsExtension

public boolean supportsExtension(QGraphicsItem.Extension extension)

Specified by:
supportsExtension in interface QGraphicsItemInterface
Overrides:
supportsExtension in class QAbstractGraphicsShapeItem

type

public int type()

This function is reimplemented for internal reasons.

Specified by:
type in interface QGraphicsItemInterface
Overrides:
type in class QAbstractGraphicsShapeItem

fromNativePointer

public static QGraphicsRectItem fromNativePointer(QNativePointer nativePointer)
This function returns the QGraphicsRectItem instance pointed to by nativePointer

Parameters:
nativePointer - the QNativePointer of which object should be returned.

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