Qt 4.8
Public Types | Public Functions | Protected Functions | List of all members
QGraphicsRectItem Class Reference

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

#include <qgraphicsitem.h>

Inheritance diagram for QGraphicsRectItem:
QAbstractGraphicsShapeItem QGraphicsItem QmlJSDebugger::SelectionRectShape

Public Types

enum  { Type = 3 }
 
- Public Types inherited from QGraphicsItem
enum  { Type = 1, UserType = 65536 }
 
enum  CacheMode { NoCache, ItemCoordinateCache, DeviceCoordinateCache }
 This enum describes QGraphicsItem's cache modes. More...
 
enum  GraphicsItemChange {
  ItemPositionChange, ItemMatrixChange, ItemVisibleChange, ItemEnabledChange,
  ItemSelectedChange, ItemParentChange, ItemChildAddedChange, ItemChildRemovedChange,
  ItemTransformChange, ItemPositionHasChanged, ItemTransformHasChanged, ItemSceneChange,
  ItemVisibleHasChanged, ItemEnabledHasChanged, ItemSelectedHasChanged, ItemParentHasChanged,
  ItemSceneHasChanged, ItemCursorChange, ItemCursorHasChanged, ItemToolTipChange,
  ItemToolTipHasChanged, ItemFlagsChange, ItemFlagsHaveChanged, ItemZValueChange,
  ItemZValueHasChanged, ItemOpacityChange, ItemOpacityHasChanged, ItemScenePositionHasChanged,
  ItemRotationChange, ItemRotationHasChanged, ItemScaleChange, ItemScaleHasChanged,
  ItemTransformOriginPointChange, ItemTransformOriginPointHasChanged
}
 This enum describes the state changes that are notified by QGraphicsItem::itemChange(). More...
 
enum  GraphicsItemFlag {
  ItemIsMovable = 0x1, ItemIsSelectable = 0x2, ItemIsFocusable = 0x4, ItemClipsToShape = 0x8,
  ItemClipsChildrenToShape = 0x10, ItemIgnoresTransformations = 0x20, ItemIgnoresParentOpacity = 0x40, ItemDoesntPropagateOpacityToChildren = 0x80,
  ItemStacksBehindParent = 0x100, ItemUsesExtendedStyleOption = 0x200, ItemHasNoContents = 0x400, ItemSendsGeometryChanges = 0x800,
  ItemAcceptsInputMethod = 0x1000, ItemNegativeZStacksBehindParent = 0x2000, ItemIsPanel = 0x4000, ItemIsFocusScope = 0x8000,
  ItemSendsScenePositionChanges = 0x10000, ItemStopsClickFocusPropagation = 0x20000, ItemStopsFocusHandling = 0x40000
}
 This enum describes different flags that you can set on an item to toggle different features in the item's behavior. More...
 
enum  PanelModality { NonModal, PanelModal, SceneModal }
 This enum specifies the behavior of a modal panel. More...
 

Public Functions

QRectF boundingRect () const
 Reimplemented Function More...
 
bool contains (const QPointF &point) const
 Reimplemented Function More...
 
bool isObscuredBy (const QGraphicsItem *item) const
 Reimplemented Function More...
 
QPainterPath opaqueArea () const
 Reimplemented Function More...
 
void paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget=0)
 Reimplemented Function More...
 
 QGraphicsRectItem (QGraphicsItem *parent=0)
 Constructs a QGraphicsRectItem. More...
 
 QGraphicsRectItem (const QRectF &rect, QGraphicsItem *parent=0)
 Constructs a QGraphicsRectItem, using rect as the default rectangle. More...
 
 QGraphicsRectItem (qreal x, qreal y, qreal w, qreal h, QGraphicsItem *parent=0)
 Constructs a QGraphicsRectItem with a default rectangle defined by (x, y) and the given width and height. More...
 
QRectF rect () const
 Returns the item's rectangle. More...
 
void setRect (const QRectF &rect)
 Sets the item's rectangle to be the given rectangle. More...
 
void setRect (qreal x, qreal y, qreal w, qreal h)
 Sets the item's rectangle to the rectangle defined by (x, y) and the given width and height. More...
 
QPainterPath shape () const
 Reimplemented Function More...
 
int type () const
 Reimplemented Function More...
 
 ~QGraphicsRectItem ()
 Destroys the QGraphicsRectItem. More...
 
- Public Functions inherited from QAbstractGraphicsShapeItem
QBrush brush () const
 Returns the item's brush, or an empty brush if no brush has been set. More...
 
QPen pen () const
 Returns the item's pen. More...
 
 QAbstractGraphicsShapeItem (QGraphicsItem *parent=0)
 Constructs a QAbstractGraphicsShapeItem. More...
 
void setBrush (const QBrush &brush)
 Sets the item's brush to brush. More...
 
void setPen (const QPen &pen)
 Sets the pen for this item to pen. More...
 
 ~QAbstractGraphicsShapeItem ()
 Destroys a QAbstractGraphicsShapeItem. More...
 
- Public Functions inherited from QGraphicsItem
bool acceptDrops () const
 Returns true if this item can accept drag and drop events; otherwise, returns false. More...
 
Qt::MouseButtons acceptedMouseButtons () const
 Returns the mouse buttons that this item accepts mouse events for. More...
 
bool acceptHoverEvents () const
 Returns true if an item accepts hover events (QGraphicsSceneHoverEvent); otherwise, returns false. More...
 
bool acceptsHoverEvents () const
 Call acceptHoverEvents() instead. More...
 
bool acceptTouchEvents () const
 Returns true if an item accepts touch events; otherwise, returns false. More...
 
virtual void advance (int phase)
 This virtual function is called twice for all items by the QGraphicsScene::advance() slot. More...
 
QRegion boundingRegion (const QTransform &itemToDeviceTransform) const
 Returns the bounding region for this item. More...
 
qreal boundingRegionGranularity () const
 Returns the item's bounding region granularity; a value between and including 0 and 1. More...
 
CacheMode cacheMode () const
 Returns the cache mode for this item. More...
 
QList< QGraphicsItem * > childItems () const
 Returns a list of this item's children. More...
 
QList< QGraphicsItem * > children () const
 Use childItems() instead. More...
 
QRectF childrenBoundingRect () const
 Returns the bounding rect of this item's descendants (i.e., its children, their children, etc.) in local coordinates. More...
 
void clearFocus ()
 Takes keyboard input focus from the item. More...
 
QPainterPath clipPath () const
 Returns this item's clip path, or an empty QPainterPath if this item is not clipped. More...
 
virtual bool collidesWithItem (const QGraphicsItem *other, Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const
 Returns true if this item collides with other; otherwise returns false. More...
 
virtual bool collidesWithPath (const QPainterPath &path, Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const
 Returns true if this item collides with path. More...
 
QList< QGraphicsItem * > collidingItems (Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const
 Returns a list of all items that collide with this item. More...
 
QGraphicsItemcommonAncestorItem (const QGraphicsItem *other) const
 Returns the closest common ancestor item of this item and other, or 0 if either other is 0, or there is no common ancestor. More...
 
QCursor cursor () const
 Returns the current cursor shape for the item. More...
 
QVariant data (int key) const
 Returns this item's custom data for the key key as a QVariant. More...
 
QTransform deviceTransform (const QTransform &viewportTransform) const
 Returns this item's device transformation matrix, using viewportTransform to map from scene to device coordinates. More...
 
qreal effectiveOpacity () const
 Returns this item's effective opacity, which is between 0. More...
 
void ensureVisible (const QRectF &rect=QRectF(), int xmargin=50, int ymargin=50)
 If this item is part of a scene that is viewed by a QGraphicsView, this convenience function will attempt to scroll the view to ensure that rect is visible inside the view's viewport. More...
 
void ensureVisible (qreal x, qreal y, qreal w, qreal h, int xmargin=50, int ymargin=50)
 This convenience function is equivalent to calling ensureVisible(QRectF(x, y, w, h), xmargin, ymargin): More...
 
bool filtersChildEvents () const
 Returns true if this item filters child events (i. More...
 
GraphicsItemFlags flags () const
 Returns this item's flags. More...
 
QGraphicsItemfocusItem () const
 If this item, a child or descendant of this item currently has input focus, this function will return a pointer to that item. More...
 
QGraphicsItemfocusProxy () const
 Returns this item's focus proxy, or 0 if this item has no focus proxy. More...
 
QGraphicsItemfocusScopeItem () const
 Returns this item's focus scope item. More...
 
void grabKeyboard ()
 Grabs the keyboard input. More...
 
void grabMouse ()
 Grabs the mouse input. More...
 
QGraphicsEffectgraphicsEffect () const
 Returns a pointer to this item's effect if it has one; otherwise 0. More...
 
QGraphicsItemGroupgroup () const
 Returns a pointer to this item's item group, or 0 if this item is not member of a group. More...
 
bool handlesChildEvents () const
 Returns true if this item handles child events (i. More...
 
bool hasCursor () const
 Returns true if this item has a cursor set; otherwise, false is returned. More...
 
bool hasFocus () const
 Returns true if this item is active, and it or its focus proxy has keyboard input focus; otherwise, returns false. More...
 
void hide ()
 Hides the item. More...
 
Qt::InputMethodHints inputMethodHints () const
 Returns the current input method hints of this item. More...
 
void installSceneEventFilter (QGraphicsItem *filterItem)
 Installs an event filter for this item on filterItem, causing all events for this item to first pass through filterItem's sceneEventFilter() function. More...
 
bool isActive () const
 Returns true if this item is active; otherwise returns false. More...
 
bool isAncestorOf (const QGraphicsItem *child) const
 Returns true if this item is an ancestor of child (i.e., if this item is child's parent, or one of child's parent's ancestors). More...
 
bool isBlockedByModalPanel (QGraphicsItem **blockingPanel=0) const
 Returns true if this item is blocked by a modal panel, false otherwise. More...
 
bool isClipped () const
 Returns true if this item is clipped. More...
 
bool isEnabled () const
 Returns true if the item is enabled; otherwise, false is returned. More...
 
bool isObscured () const
 Returns true if this item's bounding rect is completely obscured by the opaque shape of any of colliding items above it (i.e., with a higher Z value than this item). More...
 
bool isObscured (const QRectF &rect) const
 Returns true if rect is completely obscured by the opaque shape of any of colliding items above it (i. More...
 
bool isObscured (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling isObscured(QRectF(x, y, w, h)). More...
 
bool isPanel () const
 Returns true if the item is a panel; otherwise returns false. More...
 
bool isSelected () const
 Returns true if this item is selected; otherwise, false is returned. More...
 
bool isUnderMouse () const
 Returns true if this item is currently under the mouse cursor in one of the views; otherwise, false is returned. More...
 
bool isVisible () const
 Returns true if the item is visible; otherwise, false is returned. More...
 
bool isVisibleTo (const QGraphicsItem *parent) const
 Returns true if the item is visible to parent; otherwise, false is returned. More...
 
bool isWidget () const
 Returns true if this item is a widget (i. More...
 
bool isWindow () const
 Returns true if the item is a QGraphicsWidget window, otherwise returns false. More...
 
QTransform itemTransform (const QGraphicsItem *other, bool *ok=0) const
 Returns a QTransform that maps coordinates from this item to other. More...
 
QPointF mapFromItem (const QGraphicsItem *item, const QPointF &point) const
 Maps the point point, which is in item's coordinate system, to this item's coordinate system, and returns the mapped coordinate. More...
 
QPolygonF mapFromItem (const QGraphicsItem *item, const QRectF &rect) const
 Maps the rectangle rect, which is in item's coordinate system, to this item's coordinate system, and returns the mapped rectangle as a polygon. More...
 
QPolygonF mapFromItem (const QGraphicsItem *item, const QPolygonF &polygon) const
 Maps the polygon polygon, which is in item's coordinate system, to this item's coordinate system, and returns the mapped polygon. More...
 
QPainterPath mapFromItem (const QGraphicsItem *item, const QPainterPath &path) const
 Maps the path path, which is in item's coordinate system, to this item's coordinate system, and returns the mapped path. More...
 
QPointF mapFromItem (const QGraphicsItem *item, qreal x, qreal y) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This convenience function is equivalent to calling mapFromItem(item, QPointF(x, y)). More...
 
QPolygonF mapFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QPointF mapFromParent (const QPointF &point) const
 Maps the point point, which is in this item's parent's coordinate system, to this item's coordinate system, and returns the mapped coordinate. More...
 
QPolygonF mapFromParent (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's parent's coordinate system, to this item's coordinate system, and returns the mapped rectangle as a polygon. More...
 
QPolygonF mapFromParent (const QPolygonF &polygon) const
 Maps the polygon polygon, which is in this item's parent's coordinate system, to this item's coordinate system, and returns the mapped polygon. More...
 
QPainterPath mapFromParent (const QPainterPath &path) const
 Maps the path path, which is in this item's parent's coordinate system, to this item's coordinate system, and returns the mapped path. More...
 
QPointF mapFromParent (qreal x, qreal y) const
 This convenience function is equivalent to calling mapFromParent(QPointF(x, y)). More...
 
QPolygonF mapFromParent (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapFromItem(QRectF(x, y, w, h)). More...
 
QPointF mapFromScene (const QPointF &point) const
 Maps the point point, which is in this item's scene's coordinate system, to this item's coordinate system, and returns the mapped coordinate. More...
 
QPolygonF mapFromScene (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's scene's coordinate system, to this item's coordinate system, and returns the mapped rectangle as a polygon. More...
 
QPolygonF mapFromScene (const QPolygonF &polygon) const
 Maps the polygon polygon, which is in this item's scene's coordinate system, to this item's coordinate system, and returns the mapped polygon. More...
 
QPainterPath mapFromScene (const QPainterPath &path) const
 Maps the path path, which is in this item's scene's coordinate system, to this item's coordinate system, and returns the mapped path. More...
 
QPointF mapFromScene (qreal x, qreal y) const
 This convenience function is equivalent to calling mapFromScene(QPointF(x, y)). More...
 
QPolygonF mapFromScene (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapFromScene(QRectF(x, y, w, h)). More...
 
QRectF mapRectFromItem (const QGraphicsItem *item, const QRectF &rect) const
 Maps the rectangle rect, which is in item's coordinate system, to this item's coordinate system, and returns the mapped rectangle as a new rectangle (i. More...
 
QRectF mapRectFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectFromParent (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's parent's coordinate system, to this item's coordinate system, and returns the mapped rectangle as a new rectangle (i. More...
 
QRectF mapRectFromParent (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapRectFromParent(QRectF(x, y, w, h)). More...
 
QRectF mapRectFromScene (const QRectF &rect) const
 Maps the rectangle rect, which is in scene coordinates, to this item's coordinate system, and returns the mapped rectangle as a new rectangle (i. More...
 
QRectF mapRectFromScene (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapRectFromScene(QRectF(x, y, w, h)). More...
 
QRectF mapRectToItem (const QGraphicsItem *item, const QRectF &rect) const
 Maps the rectangle rect, which is in this item's coordinate system, to item's coordinate system, and returns the mapped rectangle as a new rectangle (i. More...
 
QRectF mapRectToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QRectF mapRectToParent (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's coordinate system, to its parent's coordinate system, and returns the mapped rectangle as a new rectangle (i. More...
 
QRectF mapRectToParent (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapRectToParent(QRectF(x, y, w, h)). More...
 
QRectF mapRectToScene (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's coordinate system, to the scene coordinate system, and returns the mapped rectangle as a new rectangle (i. More...
 
QRectF mapRectToScene (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapRectToScene(QRectF(x, y, w, h)). More...
 
QPointF mapToItem (const QGraphicsItem *item, const QPointF &point) const
 Maps the point point, which is in this item's coordinate system, to item's coordinate system, and returns the mapped coordinate. More...
 
QPolygonF mapToItem (const QGraphicsItem *item, const QRectF &rect) const
 Maps the rectangle rect, which is in this item's coordinate system, to item's coordinate system, and returns the mapped rectangle as a polygon. More...
 
QPolygonF mapToItem (const QGraphicsItem *item, const QPolygonF &polygon) const
 Maps the polygon polygon, which is in this item's coordinate system, to item's coordinate system, and returns the mapped polygon. More...
 
QPainterPath mapToItem (const QGraphicsItem *item, const QPainterPath &path) const
 Maps the path path, which is in this item's coordinate system, to item's coordinate system, and returns the mapped path. More...
 
QPointF mapToItem (const QGraphicsItem *item, qreal x, qreal y) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This convenience function is equivalent to calling mapToItem(item, QPointF(x, y)). More...
 
QPolygonF mapToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const
 
QPointF mapToParent (const QPointF &point) const
 Maps the point point, which is in this item's coordinate system, to its parent's coordinate system, and returns the mapped coordinate. More...
 
QPolygonF mapToParent (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's coordinate system, to its parent's coordinate system, and returns the mapped rectangle as a polygon. More...
 
QPolygonF mapToParent (const QPolygonF &polygon) const
 Maps the polygon polygon, which is in this item's coordinate system, to its parent's coordinate system, and returns the mapped polygon. More...
 
QPainterPath mapToParent (const QPainterPath &path) const
 Maps the path path, which is in this item's coordinate system, to its parent's coordinate system, and returns the mapped path. More...
 
QPointF mapToParent (qreal x, qreal y) const
 This convenience function is equivalent to calling mapToParent(QPointF(x, y)). More...
 
QPolygonF mapToParent (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapToParent(QRectF(x, y, w, h)). More...
 
QPointF mapToScene (const QPointF &point) const
 Maps the point point, which is in this item's coordinate system, to the scene's coordinate system, and returns the mapped coordinate. More...
 
QPolygonF mapToScene (const QRectF &rect) const
 Maps the rectangle rect, which is in this item's coordinate system, to the scene's coordinate system, and returns the mapped rectangle as a polygon. More...
 
QPolygonF mapToScene (const QPolygonF &polygon) const
 Maps the polygon polygon, which is in this item's coordinate system, to the scene's coordinate system, and returns the mapped polygon. More...
 
QPainterPath mapToScene (const QPainterPath &path) const
 Maps the path path, which is in this item's coordinate system, to the scene's coordinate system, and returns the mapped path. More...
 
QPointF mapToScene (qreal x, qreal y) const
 This convenience function is equivalent to calling mapToScene(QPointF(x, y)). More...
 
QPolygonF mapToScene (qreal x, qreal y, qreal w, qreal h) const
 This convenience function is equivalent to calling mapToScene(QRectF(x, y, w, h)). More...
 
QMatrix matrix () const
 Returns the item's affine transformation matrix. More...
 
void moveBy (qreal dx, qreal dy)
 Moves the item by dx points horizontally, and dy point vertically. More...
 
qreal opacity () const
 Returns this item's local opacity, which is between 0. More...
 
QGraphicsItempanel () const
 Returns the item's panel, or 0 if this item does not have a panel. More...
 
PanelModality panelModality () const
 Returns the modality for this item. More...
 
QGraphicsItemparentItem () const
 Returns a pointer to this item's parent item. More...
 
QGraphicsObjectparentObject () const
 Returns a pointer to the item's parent, cast to a QGraphicsObject. More...
 
QGraphicsWidgetparentWidget () const
 Returns a pointer to the item's parent widget. More...
 
QPointF pos () const
 Returns the position of the item in parent coordinates. More...
 
 QGraphicsItem (QGraphicsItem *parent=0)
 Constructs a QGraphicsItem with the given parent item. More...
 
void removeSceneEventFilter (QGraphicsItem *filterItem)
 Removes an event filter on this item from filterItem. More...
 
void resetMatrix ()
 Use resetTransform() instead. More...
 
void resetTransform ()
 Resets this item's transformation matrix to the identity matrix or all the transformation properties to their default values. More...
 
void rotate (qreal angle)
 Use. More...
 
qreal rotation () const
 Returns the clockwise rotation, in degrees, around the Z axis. More...
 
void scale (qreal sx, qreal sy)
 Use. More...
 
qreal scale () const
 Returns the scale factor of the item. More...
 
QGraphicsScenescene () const
 Returns the current scene for the item, or 0 if the item is not stored in a scene. More...
 
QRectF sceneBoundingRect () const
 Returns the bounding rect of this item in scene coordinates, by combining sceneTransform() with boundingRect(). More...
 
QMatrix sceneMatrix () const
 Use sceneTransform() instead. More...
 
QPointF scenePos () const
 Returns the item's position in scene coordinates. More...
 
QTransform sceneTransform () const
 Returns this item's scene transformation matrix. More...
 
void scroll (qreal dx, qreal dy, const QRectF &rect=QRectF())
 Scrolls the contents of rect by dx, dy. More...
 
void setAcceptDrops (bool on)
 If on is true, this item will accept drag and drop events; otherwise, it is transparent for drag and drop events. More...
 
void setAcceptedMouseButtons (Qt::MouseButtons buttons)
 Sets the mouse buttons that this item accepts mouse events for. More...
 
void setAcceptHoverEvents (bool enabled)
 If enabled is true, this item will accept hover events; otherwise, it will ignore them. More...
 
void setAcceptsHoverEvents (bool enabled)
 Use setAcceptHoverEvents(enabled) instead. More...
 
void setAcceptTouchEvents (bool enabled)
 If enabled is true, this item will accept touch events; otherwise, it will ignore them. More...
 
void setActive (bool active)
 If active is true, and the scene is active, this item's panel will be activated. More...
 
void setBoundingRegionGranularity (qreal granularity)
 Sets the bounding region granularity to granularity; a value between and including 0 and 1. More...
 
void setCacheMode (CacheMode mode, const QSize &cacheSize=QSize())
 Sets the item's cache mode to mode. More...
 
void setCursor (const QCursor &cursor)
 Sets the current cursor shape for the item to cursor. More...
 
void setData (int key, const QVariant &value)
 Sets this item's custom data for the key key to value. More...
 
void setEnabled (bool enabled)
 If enabled is true, the item is enabled; otherwise, it is disabled. More...
 
void setFiltersChildEvents (bool enabled)
 If enabled is true, this item is set to filter all events for all its children (i. More...
 
void setFlag (GraphicsItemFlag flag, bool enabled=true)
 If enabled is true, the item flag flag is enabled; otherwise, it is disabled. More...
 
void setFlags (GraphicsItemFlags flags)
 Sets the item flags to flags. More...
 
void setFocus (Qt::FocusReason focusReason=Qt::OtherFocusReason)
 Gives keyboard input focus to this item. More...
 
void setFocusProxy (QGraphicsItem *item)
 Sets the item's focus proxy to item. More...
 
void setGraphicsEffect (QGraphicsEffect *effect)
 Sets effect as the item's effect. More...
 
void setGroup (QGraphicsItemGroup *group)
 Adds this item to the item group group. More...
 
void setHandlesChildEvents (bool enabled)
 If enabled is true, this item is set to handle all events for all its children (i. More...
 
void setInputMethodHints (Qt::InputMethodHints hints)
 Sets the current input method hints of this item to hints. More...
 
void setMatrix (const QMatrix &matrix, bool combine=false)
 Sets the item's affine transformation matrix. More...
 
void setOpacity (qreal opacity)
 Sets this item's local opacity, between 0. More...
 
void setPanelModality (PanelModality panelModality)
 Sets the modality for this item to panelModality. More...
 
void setParentItem (QGraphicsItem *parent)
 Sets this item's parent item to newParent. More...
 
void setPos (const QPointF &pos)
 Sets the position of the item to pos, which is in parent coordinates. More...
 
void setPos (qreal x, qreal y)
 This convenience function is equivalent to calling setPos(QPointF(x, y)). More...
 
void setRotation (qreal angle)
 Sets the clockwise rotation angle, in degrees, around the Z axis. More...
 
void setScale (qreal scale)
 Sets the scale factor of the item. More...
 
void setSelected (bool selected)
 If selected is true and this item is selectable, this item is selected; otherwise, it is unselected. More...
 
void setToolTip (const QString &toolTip)
 Sets the item's tool tip to toolTip. More...
 
void setTransform (const QTransform &matrix, bool combine=false)
 Sets the item's current transformation matrix to matrix. More...
 
void setTransformations (const QList< QGraphicsTransform *> &transformations)
 Sets a list of graphics transformations (QGraphicsTransform) that currently apply to this item. More...
 
void setTransformOriginPoint (const QPointF &origin)
 Sets the origin point for the transformation in item coordinates. More...
 
void setTransformOriginPoint (qreal ax, qreal ay)
 Sets the origin point for the transformation in item coordinates. More...
 
void setVisible (bool visible)
 If visible is true, the item is made visible. More...
 
void setX (qreal x)
 Set's the x coordinate of the item's position. More...
 
void setY (qreal y)
 Set's the y coordinate of the item's position. More...
 
void setZValue (qreal z)
 Sets the Z-value of the item to z. More...
 
void shear (qreal sh, qreal sv)
 Use. More...
 
void show ()
 Shows the item. More...
 
void stackBefore (const QGraphicsItem *sibling)
 Stacks this item before sibling, which must be a sibling item (i. More...
 
QGraphicsObjecttoGraphicsObject ()
 Return the graphics item cast to a QGraphicsObject, if the class is actually a graphics object, 0 otherwise. More...
 
const QGraphicsObjecttoGraphicsObject () const
 Return the graphics item cast to a QGraphicsObject, if the class is actually a graphics object, 0 otherwise. More...
 
QString toolTip () const
 Returns the item's tool tip, or an empty QString if no tool tip has been set. More...
 
QGraphicsItemtopLevelItem () const
 Returns this item's top-level item. More...
 
QGraphicsWidgettopLevelWidget () const
 Returns a pointer to the item's top level widget (i. More...
 
QTransform transform () const
 Returns this item's transformation matrix. More...
 
QList< QGraphicsTransform * > transformations () const
 Returns a list of graphics transforms that currently apply to this item. More...
 
QPointF transformOriginPoint () const
 Returns the origin point for the transformation in item coordinates. More...
 
void translate (qreal dx, qreal dy)
 Use setPos() or setTransformOriginPoint() instead. More...
 
void ungrabKeyboard ()
 Releases the keyboard grab. More...
 
void ungrabMouse ()
 Releases the mouse grab. More...
 
void unsetCursor ()
 Clears the cursor from this item. More...
 
void update (const QRectF &rect=QRectF())
 Schedules a redraw of the area covered by rect in this item. More...
 
void update (qreal x, qreal y, qreal width, qreal height)
 This convenience function is equivalent to calling update(QRectF(x, y, width, height)). More...
 
QGraphicsWidgetwindow () const
 Returns the item's window, or 0 if this item does not have a window. More...
 
qreal x () const
 This convenience function is equivalent to calling pos(). More...
 
qreal y () const
 This convenience function is equivalent to calling pos(). More...
 
qreal zValue () const
 Returns the Z-value of the item. More...
 
virtual ~QGraphicsItem ()
 Destroys the QGraphicsItem and all its children. More...
 

Protected Functions

QVariant extension (const QVariant &variant) const
 
void setExtension (Extension extension, const QVariant &variant)
 
bool supportsExtension (Extension extension) const
 
- Protected Functions inherited from QAbstractGraphicsShapeItem
 QAbstractGraphicsShapeItem (QAbstractGraphicsShapeItemPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene)
 
- Protected Functions inherited from QGraphicsItem
void addToIndex ()
 Adds this item to the scene's index. More...
 
virtual void contextMenuEvent (QGraphicsSceneContextMenuEvent *event)
 This event handler can be reimplemented in a subclass to process context menu events. More...
 
virtual void dragEnterEvent (QGraphicsSceneDragDropEvent *event)
 This event handler, for event event, can be reimplemented to receive drag enter events for this item. More...
 
virtual void dragLeaveEvent (QGraphicsSceneDragDropEvent *event)
 This event handler, for event event, can be reimplemented to receive drag leave events for this item. More...
 
virtual void dragMoveEvent (QGraphicsSceneDragDropEvent *event)
 This event handler, for event event, can be reimplemented to receive drag move events for this item. More...
 
virtual void dropEvent (QGraphicsSceneDragDropEvent *event)
 This event handler, for event event, can be reimplemented to receive drop events for this item. More...
 
virtual void focusInEvent (QFocusEvent *event)
 This event handler, for event event, can be reimplemented to receive focus in events for this item. More...
 
virtual void focusOutEvent (QFocusEvent *event)
 This event handler, for event event, can be reimplemented to receive focus out events for this item. More...
 
virtual void hoverEnterEvent (QGraphicsSceneHoverEvent *event)
 This event handler, for event event, can be reimplemented to receive hover enter events for this item. More...
 
virtual void hoverLeaveEvent (QGraphicsSceneHoverEvent *event)
 This event handler, for event event, can be reimplemented to receive hover leave events for this item. More...
 
virtual void hoverMoveEvent (QGraphicsSceneHoverEvent *event)
 This event handler, for event event, can be reimplemented to receive hover move events for this item. More...
 
virtual void inputMethodEvent (QInputMethodEvent *event)
 This event handler, for event event, can be reimplemented to receive input method events for this item. More...
 
virtual QVariant inputMethodQuery (Qt::InputMethodQuery query) const
 This method is only relevant for input items. More...
 
virtual QVariant itemChange (GraphicsItemChange change, const QVariant &value)
 This virtual function is called by QGraphicsItem to notify custom items that some part of the item's state changes. More...
 
virtual void keyPressEvent (QKeyEvent *event)
 This event handler, for event event, can be reimplemented to receive key press events for this item. More...
 
virtual void keyReleaseEvent (QKeyEvent *event)
 This event handler, for event event, can be reimplemented to receive key release events for this item. More...
 
virtual void mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event)
 This event handler, for event event, can be reimplemented to receive mouse doubleclick events for this item. More...
 
virtual void mouseMoveEvent (QGraphicsSceneMouseEvent *event)
 This event handler, for event event, can be reimplemented to receive mouse move events for this item. More...
 
virtual void mousePressEvent (QGraphicsSceneMouseEvent *event)
 This event handler, for event event, can be reimplemented to receive mouse press events for this item. More...
 
virtual void mouseReleaseEvent (QGraphicsSceneMouseEvent *event)
 This event handler, for event event, can be reimplemented to receive mouse release events for this item. More...
 
void prepareGeometryChange ()
 Prepares the item for a geometry change. More...
 
 QGraphicsItem (QGraphicsItemPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene)
 
void removeFromIndex ()
 Removes this item from the scene's index. More...
 
virtual bool sceneEvent (QEvent *event)
 This virtual function receives events to this item. More...
 
virtual bool sceneEventFilter (QGraphicsItem *watched, QEvent *event)
 Filters events for the item watched. More...
 
void updateMicroFocus ()
 Updates the item's micro focus. More...
 
virtual void wheelEvent (QGraphicsSceneWheelEvent *event)
 This event handler, for event event, can be reimplemented to receive wheel events for this item. More...
 

Additional Inherited Members

- Protected Types inherited from QGraphicsItem
enum  Extension { UserExtension = 0x80000000 }
 Note: This is provided as a hook to avoid future problems related to adding virtual functions. More...
 
- Protected Variables inherited from QGraphicsItem
QScopedPointer< QGraphicsItemPrivated_ptr
 

Detailed Description

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

Since
4.2

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.

graphicsview-rectitem.png

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.

Note
The rendering of invalid rectangles, such as those with negative widths or heights, is undefined. If you cannot be sure that you are using valid rectangles (for example, if you are creating rectangles using data from an unreliable source) then you should use QRectF::normalized() to create normalized rectangles, and use those instead.
See also
QGraphicsPathItem, QGraphicsEllipseItem, QGraphicsPolygonItem, QGraphicsTextItem, QGraphicsLineItem, QGraphicsPixmapItem, {Graphics View Framework}

Definition at line 683 of file qgraphicsitem.h.

Enumerations

◆ anonymous enum

anonymous enum
Enumerator
Type 

Definition at line 719 of file qgraphicsitem.h.

Constructors and Destructors

◆ QGraphicsRectItem() [1/3]

QGraphicsRectItem::QGraphicsRectItem ( QGraphicsItem parent = 0)

Constructs a QGraphicsRectItem.

parent is passed to QAbstractGraphicsShapeItem's constructor.

See also
QGraphicsScene::addItem()

Definition at line 8999 of file qgraphicsitem.cpp.

9006 {
9007 }
QAbstractGraphicsShapeItem(QGraphicsItem *parent=0)
Constructs a QAbstractGraphicsShapeItem.
QGraphicsScene * scene() const
Returns the current scene for the item, or 0 if the item is not stored in a scene.

◆ QGraphicsRectItem() [2/3]

QGraphicsRectItem::QGraphicsRectItem ( const QRectF rect,
QGraphicsItem parent = 0 
)

Constructs a QGraphicsRectItem, using rect as the default rectangle.

parent is passed to QAbstractGraphicsShapeItem's constructor.

See also
QGraphicsScene::addItem()

Definition at line 8959 of file qgraphicsitem.cpp.

8966 {
8967  setRect(rect);
8968 }
QAbstractGraphicsShapeItem(QGraphicsItem *parent=0)
Constructs a QAbstractGraphicsShapeItem.
void setRect(const QRectF &rect)
Sets the item&#39;s rectangle to be the given rectangle.
QGraphicsScene * scene() const
Returns the current scene for the item, or 0 if the item is not stored in a scene.

◆ QGraphicsRectItem() [3/3]

QGraphicsRectItem::QGraphicsRectItem ( qreal  x,
qreal  y,
qreal  width,
qreal  height,
QGraphicsItem parent = 0 
)

Constructs a QGraphicsRectItem with a default rectangle defined by (x, y) and the given width and height.

parent is passed to QAbstractGraphicsShapeItem's constructor.

See also
QGraphicsScene::addItem()

Definition at line 8981 of file qgraphicsitem.cpp.

8989 {
8990  setRect(QRectF(x, y, w, h));
8991 }
The QRectF class defines a rectangle in the plane using floating point precision. ...
Definition: qrect.h:511
QAbstractGraphicsShapeItem(QGraphicsItem *parent=0)
Constructs a QAbstractGraphicsShapeItem.
qreal y() const
This convenience function is equivalent to calling pos().
qreal x() const
This convenience function is equivalent to calling pos().
void setRect(const QRectF &rect)
Sets the item&#39;s rectangle to be the given rectangle.
QGraphicsScene * scene() const
Returns the current scene for the item, or 0 if the item is not stored in a scene.

◆ ~QGraphicsRectItem()

QGraphicsRectItem::~QGraphicsRectItem ( )

Destroys the QGraphicsRectItem.

Definition at line 9012 of file qgraphicsitem.cpp.

9013 {
9014 }

Functions

◆ boundingRect()

QRectF QGraphicsRectItem::boundingRect ( ) const
virtual

Reimplemented Function

Implements QGraphicsItem.

Definition at line 9067 of file qgraphicsitem.cpp.

9068 {
9069  Q_D(const QGraphicsRectItem);
9070  if (d->boundingRect.isNull()) {
9071  qreal halfpw = pen().widthF() / 2;
9072  d->boundingRect = d->rect;
9073  if (halfpw > 0.0)
9074  d->boundingRect.adjust(-halfpw, -halfpw, halfpw, halfpw);
9075  }
9076  return d->boundingRect;
9077 }
double d
Definition: qnumeric_p.h:62
double qreal
Definition: qglobal.h:1193
The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.
#define Q_D(Class)
Definition: qglobal.h:2482
QPen pen() const
Returns the item&#39;s pen.
qreal widthF() const
Returns the pen width with floating point precision.
Definition: qpen.cpp:645

◆ contains()

bool QGraphicsRectItem::contains ( const QPointF point) const
virtual

Reimplemented Function

Reimplemented from QGraphicsItem.

Definition at line 9093 of file qgraphicsitem.cpp.

9094 {
9096 }
virtual bool contains(const QPointF &point) const
Returns true if this item contains point, which is in local coordinates; otherwise, false is returned.

◆ extension()

QVariant QGraphicsRectItem::extension ( const QVariant variant) const
protectedvirtual
Warning
This function is not part of the public interface.

Reimplemented from QGraphicsItem.

Definition at line 9159 of file qgraphicsitem.cpp.

9160 {
9161  Q_UNUSED(variant);
9162  return QVariant();
9163 }
The QVariant class acts like a union for the most common Qt data types.
Definition: qvariant.h:92
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729

◆ isObscuredBy()

bool QGraphicsRectItem::isObscuredBy ( const QGraphicsItem item) const
virtual

Reimplemented Function

Reimplemented from QAbstractGraphicsShapeItem.

Definition at line 9117 of file qgraphicsitem.cpp.

9118 {
9120 }
bool isObscuredBy(const QGraphicsItem *item) const
Reimplemented Function

◆ opaqueArea()

QPainterPath QGraphicsRectItem::opaqueArea ( ) const
virtual

Reimplemented Function

Reimplemented from QAbstractGraphicsShapeItem.

Definition at line 9125 of file qgraphicsitem.cpp.

9126 {
9128 }
QPainterPath opaqueArea() const
Reimplemented Function

◆ paint()

void QGraphicsRectItem::paint ( QPainter painter,
const QStyleOptionGraphicsItem option,
QWidget widget = 0 
)
virtual

Reimplemented Function

Implements QGraphicsItem.

Definition at line 9101 of file qgraphicsitem.cpp.

9103 {
9105  Q_UNUSED(widget);
9106  painter->setPen(d->pen);
9107  painter->setBrush(d->brush);
9108  painter->drawRect(d->rect);
9109 
9110  if (option->state & QStyle::State_Selected)
9111  qt_graphicsItem_highlightSelected(this, painter, option);
9112 }
double d
Definition: qnumeric_p.h:62
The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.
QStyle::State state
the style flags that are used when drawing the control
Definition: qstyleoption.h:88
#define Q_D(Class)
Definition: qglobal.h:2482
void setBrush(const QBrush &brush)
Sets the painter&#39;s brush to the given brush.
Definition: qpainter.cpp:4171
void setPen(const QColor &color)
Sets the painter&#39;s pen to have style Qt::SolidLine, width 0 and the specified color.
Definition: qpainter.cpp:4047
void drawRect(const QRectF &rect)
Draws the current rectangle with the current pen and brush.
Definition: qpainter.h:650
static void qt_graphicsItem_highlightSelected(QGraphicsItem *item, QPainter *painter, const QStyleOptionGraphicsItem *option)
Highlights item as selected.
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729

◆ rect()

QRectF QGraphicsRectItem::rect ( ) const

Returns the item's rectangle.

See also
setRect()

Definition at line 9021 of file qgraphicsitem.cpp.

Referenced by QmlJSDebugger::LiveSelectionRectangle::rect(), and setRect().

9022 {
9023  Q_D(const QGraphicsRectItem);
9024  return d->rect;
9025 }
double d
Definition: qnumeric_p.h:62
The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.
#define Q_D(Class)
Definition: qglobal.h:2482

◆ setExtension()

void QGraphicsRectItem::setExtension ( Extension  extension,
const QVariant variant 
)
protectedvirtual
Warning
This function is not part of the public interface.

Reimplemented from QGraphicsItem.

Definition at line 9150 of file qgraphicsitem.cpp.

9151 {
9153  Q_UNUSED(variant);
9154 }
QVariant extension(const QVariant &variant) const
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729

◆ setRect() [1/2]

void QGraphicsRectItem::setRect ( const QRectF rectangle)

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

See also
rect()

Definition at line 9037 of file qgraphicsitem.cpp.

Referenced by QGraphicsRectItem(), QmlJSDebugger::SubcomponentMaskLayerItem::setCurrentItem(), QmlJSDebugger::LiveSelectionIndicator::setItems(), QmlJSDebugger::LiveSelectionRectangle::setRect(), and QmlJSDebugger::SubcomponentMaskLayerItem::SubcomponentMaskLayerItem().

9038 {
9040  if (d->rect == rect)
9041  return;
9043  d->rect = rect;
9044  d->boundingRect = QRectF();
9045  update();
9046 }
double d
Definition: qnumeric_p.h:62
The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.
QRectF rect() const
Returns the item&#39;s rectangle.
void update(const QRectF &rect=QRectF())
Schedules a redraw of the area covered by rect in this item.
#define Q_D(Class)
Definition: qglobal.h:2482
The QRectF class defines a rectangle in the plane using floating point precision. ...
Definition: qrect.h:511
void prepareGeometryChange()
Prepares the item for a geometry change.

◆ setRect() [2/2]

void QGraphicsRectItem::setRect ( qreal  x,
qreal  y,
qreal  w,
qreal  h 
)
inline

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

Definition at line 732 of file qgraphicsitem.h.

733 { setRect(QRectF(ax, ay, w, h)); }
The QRectF class defines a rectangle in the plane using floating point precision. ...
Definition: qrect.h:511
void setRect(const QRectF &rect)
Sets the item&#39;s rectangle to be the given rectangle.

◆ shape()

QPainterPath QGraphicsRectItem::shape ( ) const
virtual

Reimplemented Function

Reimplemented from QGraphicsItem.

Definition at line 9082 of file qgraphicsitem.cpp.

9083 {
9084  Q_D(const QGraphicsRectItem);
9085  QPainterPath path;
9086  path.addRect(d->rect);
9087  return qt_graphicsItem_shapeFromPath(path, d->pen);
9088 }
double d
Definition: qnumeric_p.h:62
The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.
The QPainterPath class provides a container for painting operations, enabling graphical shapes to be ...
Definition: qpainterpath.h:67
#define Q_D(Class)
Definition: qglobal.h:2482
static QPainterPath qt_graphicsItem_shapeFromPath(const QPainterPath &path, const QPen &pen)
Returns a QPainterPath of path when stroked with the pen.
void addRect(const QRectF &rect)
Adds the given rectangle to this path as a closed subpath.

◆ supportsExtension()

bool QGraphicsRectItem::supportsExtension ( Extension  extension) const
protectedvirtual
Warning
This function is not part of the public interface.

Reimplemented from QGraphicsItem.

Definition at line 9141 of file qgraphicsitem.cpp.

9142 {
9144  return false;
9145 }
QVariant extension(const QVariant &variant) const
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729

◆ type()

int QGraphicsRectItem::type ( ) const
virtual

Reimplemented Function

Reimplemented from QGraphicsItem.

Reimplemented in QmlJSDebugger::SelectionRectShape.

Definition at line 9133 of file qgraphicsitem.cpp.

9134 {
9135  return Type;
9136 }

The documentation for this class was generated from the following files: