#include <customitem.h>

Inheritance diagram for CustomItem:

Collaboration diagram for CustomItem:

Public Types
enum	{ Type = UserType + 1 }

Public Types inherited from QGraphicsItem
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 , ItemContainsChildrenInShape = 0x80000 }

enum	GraphicsItemChange { ItemPositionChange , ItemVisibleChange = 2 , 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 }

enum	CacheMode { NoCache , ItemCoordinateCache , DeviceCoordinateCache }

enum	PanelModality { NonModal , PanelModal , SceneModal }

enum	{ Type = 1 , UserType = 65536 }

Public Types inherited from QStandardItem
enum	ItemType { Type = 0 , UserType = 1000 }

Public Types inherited from QGraphicsRectItem
enum	{ Type = 3 }

Public Member Functions
int	type () const override

int	type () const override

void	mousePressEvent (QGraphicsSceneMouseEvent *event)
	[5] More...

QStandardItem *	clone () const override

int	type () const override

bool	operator< (const QStandardItem &other) const override

int	type () const override

QStandardItem *	clone () const override

	CustomItem (qreal x, qreal y, qreal width, qreal height, QGraphicsItem *parent=nullptr)

void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget) override

void	reset ()

	CustomItem (qreal x, qreal y, qreal width, qreal height)

void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget) override

void	reset ()

QRectF	boundingRect () const override

void	paint (QPainter painter, const QStyleOptionGraphicsItem , QWidget *) override

	CustomItem (qreal x, qreal y, qreal width, qreal height, const QBrush &brush=QBrush())

virtual	~CustomItem ()

	QStandardItem ()

	QStandardItem (const QString &text)

	QStandardItem (const QIcon &icon, const QString &text)

	QStandardItem (int rows, int columns=1)

	QStandardItem (const QStandardItem &other)

	QStandardItem (QStandardItemPrivate &dd)

	QStandardItem ()

	QStandardItem (const QString &text)

	QStandardItem (const QIcon &icon, const QString &text)

	QStandardItem (int rows, int columns=1)

	QStandardItem (const QStandardItem &other)

	QStandardItem (QStandardItemPrivate &dd)

virtual QStandardItem *	clone () const

void	emitDataChanged ()

	QStandardItem ()

	QStandardItem (const QString &text)

	QStandardItem (const QIcon &icon, const QString &text)

	QStandardItem (int rows, int columns=1)

	QStandardItem (const QStandardItem &other)

	QStandardItem (QStandardItemPrivate &dd)

Public Member Functions inherited from QGraphicsItem
	QGraphicsItem (QGraphicsItem *parent=nullptr)

virtual	~QGraphicsItem ()

QGraphicsScene *	scene () const

QGraphicsItem *	parentItem () const

QGraphicsItem *	topLevelItem () const

QGraphicsObject *	parentObject () const

QGraphicsWidget *	parentWidget () const

QGraphicsWidget *	topLevelWidget () const

QGraphicsWidget *	window () const

QGraphicsItem *	panel () const

void	setParentItem (QGraphicsItem *parent)

QList< QGraphicsItem * >	childItems () const

bool	isWidget () const

bool	isWindow () const

bool	isPanel () const

QGraphicsObject *	toGraphicsObject ()

const QGraphicsObject *	toGraphicsObject () const

QGraphicsItemGroup *	group () const

void	setGroup (QGraphicsItemGroup *group)

GraphicsItemFlags	flags () const

void	setFlag (GraphicsItemFlag flag, bool enabled=true)

void	setFlags (GraphicsItemFlags flags)

CacheMode	cacheMode () const

void	setCacheMode (CacheMode mode, const QSize &cacheSize=QSize())

PanelModality	panelModality () const

void	setPanelModality (PanelModality panelModality)

bool	isBlockedByModalPanel (QGraphicsItem **blockingPanel=nullptr) const

QCursor	cursor () const

void	setCursor (const QCursor &cursor)

bool	hasCursor () const

void	unsetCursor ()

bool	isVisible () const

bool	isVisibleTo (const QGraphicsItem *parent) const

void	setVisible (bool visible)

void	hide ()

void	show ()

bool	isEnabled () const

void	setEnabled (bool enabled)

bool	isSelected () const

void	setSelected (bool selected)

bool	acceptDrops () const

void	setAcceptDrops (bool on)

qreal	opacity () const

qreal	effectiveOpacity () const

void	setOpacity (qreal opacity)

Qt::MouseButtons	acceptedMouseButtons () const

void	setAcceptedMouseButtons (Qt::MouseButtons buttons)

bool	acceptHoverEvents () const

void	setAcceptHoverEvents (bool enabled)

bool	acceptTouchEvents () const

void	setAcceptTouchEvents (bool enabled)

bool	filtersChildEvents () const

void	setFiltersChildEvents (bool enabled)

bool	handlesChildEvents () const

void	setHandlesChildEvents (bool enabled)

bool	isActive () const

void	setActive (bool active)

bool	hasFocus () const

void	setFocus (Qt::FocusReason focusReason=Qt::OtherFocusReason)

void	clearFocus ()

QGraphicsItem *	focusProxy () const

void	setFocusProxy (QGraphicsItem *item)

QGraphicsItem *	focusItem () const

QGraphicsItem *	focusScopeItem () const

void	grabMouse ()

void	ungrabMouse ()

void	grabKeyboard ()

void	ungrabKeyboard ()

QPointF	pos () const

qreal	x () const

void	setX (qreal x)

qreal	y () const

void	setY (qreal y)

QPointF	scenePos () const

void	setPos (const QPointF &pos)

void	setPos (qreal x, qreal y)

void	moveBy (qreal dx, qreal dy)

void	ensureVisible (const QRectF &rect=QRectF(), int xmargin=50, int ymargin=50)

void	ensureVisible (qreal x, qreal y, qreal w, qreal h, int xmargin=50, int ymargin=50)

QTransform	transform () const

QTransform	sceneTransform () const

QTransform	deviceTransform (const QTransform &viewportTransform) const

QTransform	itemTransform (const QGraphicsItem other, bool ok=nullptr) const

void	setTransform (const QTransform &matrix, bool combine=false)

void	resetTransform ()

void	setRotation (qreal angle)

qreal	rotation () const

void	setScale (qreal scale)

qreal	scale () const

QList< QGraphicsTransform * >	transformations () const

void	setTransformations (const QList< QGraphicsTransform * > &transformations)

QPointF	transformOriginPoint () const

void	setTransformOriginPoint (const QPointF &origin)

void	setTransformOriginPoint (qreal ax, qreal ay)

virtual void	advance (int phase)

qreal	zValue () const

void	setZValue (qreal z)

void	stackBefore (const QGraphicsItem *sibling)

QRectF	childrenBoundingRect () const

QRectF	sceneBoundingRect () const

bool	isClipped () const

QPainterPath	clipPath () const

virtual bool	collidesWithItem (const QGraphicsItem *other, Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const

virtual bool	collidesWithPath (const QPainterPath &path, Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const

QList< QGraphicsItem * >	collidingItems (Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const

bool	isObscured (const QRectF &rect=QRectF()) const

bool	isObscured (qreal x, qreal y, qreal w, qreal h) const

QRegion	boundingRegion (const QTransform &itemToDeviceTransform) const

qreal	boundingRegionGranularity () const

void	setBoundingRegionGranularity (qreal granularity)

void	update (const QRectF &rect=QRectF())

void	update (qreal x, qreal y, qreal width, qreal height)

void	scroll (qreal dx, qreal dy, const QRectF &rect=QRectF())

QPointF	mapToItem (const QGraphicsItem *item, const QPointF &point) const

QPointF	mapToParent (const QPointF &point) const

QPointF	mapToScene (const QPointF &point) const

QPolygonF	mapToItem (const QGraphicsItem *item, const QRectF &rect) const

QPolygonF	mapToParent (const QRectF &rect) const

QPolygonF	mapToScene (const QRectF &rect) const

QRectF	mapRectToItem (const QGraphicsItem *item, const QRectF &rect) const

QRectF	mapRectToParent (const QRectF &rect) const

QRectF	mapRectToScene (const QRectF &rect) const

QPolygonF	mapToItem (const QGraphicsItem *item, const QPolygonF &polygon) const

QPolygonF	mapToParent (const QPolygonF &polygon) const

QPolygonF	mapToScene (const QPolygonF &polygon) const

QPainterPath	mapToItem (const QGraphicsItem *item, const QPainterPath &path) const

QPainterPath	mapToParent (const QPainterPath &path) const

QPainterPath	mapToScene (const QPainterPath &path) const

QPointF	mapFromItem (const QGraphicsItem *item, const QPointF &point) const

QPointF	mapFromParent (const QPointF &point) const

QPointF	mapFromScene (const QPointF &point) const

QPolygonF	mapFromItem (const QGraphicsItem *item, const QRectF &rect) const

QPolygonF	mapFromParent (const QRectF &rect) const

QPolygonF	mapFromScene (const QRectF &rect) const

QRectF	mapRectFromItem (const QGraphicsItem *item, const QRectF &rect) const

QRectF	mapRectFromParent (const QRectF &rect) const

QRectF	mapRectFromScene (const QRectF &rect) const

QPolygonF	mapFromItem (const QGraphicsItem *item, const QPolygonF &polygon) const

QPolygonF	mapFromParent (const QPolygonF &polygon) const

QPolygonF	mapFromScene (const QPolygonF &polygon) const

QPainterPath	mapFromItem (const QGraphicsItem *item, const QPainterPath &path) const

QPainterPath	mapFromParent (const QPainterPath &path) const

QPainterPath	mapFromScene (const QPainterPath &path) const

QPointF	mapToItem (const QGraphicsItem *item, qreal x, qreal y) const

QPointF	mapToParent (qreal x, qreal y) const

QPointF	mapToScene (qreal x, qreal y) const

QPolygonF	mapToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapToParent (qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapToScene (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectToParent (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectToScene (qreal x, qreal y, qreal w, qreal h) const

QPointF	mapFromItem (const QGraphicsItem *item, qreal x, qreal y) const

QPointF	mapFromParent (qreal x, qreal y) const

QPointF	mapFromScene (qreal x, qreal y) const

QPolygonF	mapFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapFromParent (qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapFromScene (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectFromParent (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectFromScene (qreal x, qreal y, qreal w, qreal h) const

bool	isAncestorOf (const QGraphicsItem *child) const

QGraphicsItem *	commonAncestorItem (const QGraphicsItem *other) const

bool	isUnderMouse () const

QVariant	data (int key) const

void	setData (int key, const QVariant &value)

Qt::InputMethodHints	inputMethodHints () const

void	setInputMethodHints (Qt::InputMethodHints hints)

void	installSceneEventFilter (QGraphicsItem *filterItem)

void	removeSceneEventFilter (QGraphicsItem *filterItem)

Public Member Functions inherited from QStandardItem
	QStandardItem ()

	QStandardItem (const QString &text)

	QStandardItem (const QIcon &icon, const QString &text)

	QStandardItem (int rows, int columns=1)

virtual	~QStandardItem ()

virtual QVariant	data (int role=Qt::UserRole+1) const

virtual void	multiData (QModelRoleDataSpan roleDataSpan) const

virtual void	setData (const QVariant &value, int role=Qt::UserRole+1)

void	clearData ()

QString	text () const

void	setText (const QString &text)

QIcon	icon () const

void	setIcon (const QIcon &icon)

QString	toolTip () const

void	setToolTip (const QString &toolTip)

QString	statusTip () const

void	setStatusTip (const QString &statusTip)

QSize	sizeHint () const

void	setSizeHint (const QSize &sizeHint)

QFont	font () const

void	setFont (const QFont &font)

Qt::Alignment	textAlignment () const

void	setTextAlignment (Qt::Alignment textAlignment)

QBrush	background () const

void	setBackground (const QBrush &brush)

QBrush	foreground () const

void	setForeground (const QBrush &brush)

Qt::CheckState	checkState () const

void	setCheckState (Qt::CheckState checkState)

QString	accessibleText () const

void	setAccessibleText (const QString &accessibleText)

QString	accessibleDescription () const

void	setAccessibleDescription (const QString &accessibleDescription)

Qt::ItemFlags	flags () const

void	setFlags (Qt::ItemFlags flags)

bool	isEnabled () const

void	setEnabled (bool enabled)

bool	isEditable () const

void	setEditable (bool editable)

bool	isSelectable () const

void	setSelectable (bool selectable)

bool	isCheckable () const

void	setCheckable (bool checkable)

bool	isAutoTristate () const

void	setAutoTristate (bool tristate)

bool	isUserTristate () const

void	setUserTristate (bool tristate)

QStandardItem *	parent () const

int	row () const

int	column () const

QModelIndex	index () const

QStandardItemModel *	model () const

int	rowCount () const

void	setRowCount (int rows)

int	columnCount () const

void	setColumnCount (int columns)

bool	hasChildren () const

QStandardItem *	child (int row, int column=0) const

void	setChild (int row, int column, QStandardItem *item)

void	setChild (int row, QStandardItem *item)

void	insertRow (int row, const QList< QStandardItem * > &items)

void	insertColumn (int column, const QList< QStandardItem * > &items)

void	insertRows (int row, const QList< QStandardItem * > &items)

void	insertRows (int row, int count)

void	insertColumns (int column, int count)

void	removeRow (int row)

void	removeColumn (int column)

void	removeRows (int row, int count)

void	removeColumns (int column, int count)

void	appendRow (const QList< QStandardItem * > &items)

void	appendRows (const QList< QStandardItem * > &items)

void	appendColumn (const QList< QStandardItem * > &items)

void	insertRow (int row, QStandardItem *item)

void	appendRow (QStandardItem *item)

QStandardItem *	takeChild (int row, int column=0)

QList< QStandardItem * >	takeRow (int row)

QList< QStandardItem * >	takeColumn (int column)

void	sortChildren (int column, Qt::SortOrder order=Qt::AscendingOrder)

virtual void	read (QDataStream &in)

virtual void	write (QDataStream &out) const

Public Member Functions inherited from QGraphicsRectItem
	QGraphicsRectItem (QGraphicsItem *parent=nullptr)

	QGraphicsRectItem (const QRectF &rect, QGraphicsItem *parent=nullptr)

	QGraphicsRectItem (qreal x, qreal y, qreal w, qreal h, QGraphicsItem *parent=nullptr)

	~QGraphicsRectItem ()

QRectF	rect () const

void	setRect (const QRectF &rect)

void	setRect (qreal x, qreal y, qreal w, qreal h)

QPainterPath	shape () const override

bool	contains (const QPointF &point) const override

bool	isObscuredBy (const QGraphicsItem *item) const override

QPainterPath	opaqueArea () const override

Public Member Functions inherited from QAbstractGraphicsShapeItem
	QAbstractGraphicsShapeItem (QGraphicsItem *parent=nullptr)

	~QAbstractGraphicsShapeItem ()

QPen	pen () const

void	setPen (const QPen &pen)

QBrush	brush () const

void	setBrush (const QBrush &brush)

Public Attributes
int	numRepaints

QPainter *	m_painter

const QStyleOption *	m_styleOption

Additional Inherited Members
Protected Types inherited from QGraphicsItem
enum	Extension { UserExtension = 0x80000000 }

Protected Member Functions inherited from QGraphicsItem
void	updateMicroFocus ()

virtual bool	sceneEventFilter (QGraphicsItem watched, QEvent event)

virtual bool	sceneEvent (QEvent *event)

virtual void	contextMenuEvent (QGraphicsSceneContextMenuEvent *event)

virtual void	dragEnterEvent (QGraphicsSceneDragDropEvent *event)

virtual void	dragLeaveEvent (QGraphicsSceneDragDropEvent *event)

virtual void	dragMoveEvent (QGraphicsSceneDragDropEvent *event)

virtual void	dropEvent (QGraphicsSceneDragDropEvent *event)

virtual void	focusInEvent (QFocusEvent *event)

virtual void	focusOutEvent (QFocusEvent *event)

virtual void	hoverEnterEvent (QGraphicsSceneHoverEvent *event)

virtual void	hoverMoveEvent (QGraphicsSceneHoverEvent *event)

virtual void	hoverLeaveEvent (QGraphicsSceneHoverEvent *event)

virtual void	keyPressEvent (QKeyEvent *event)

virtual void	keyReleaseEvent (QKeyEvent *event)

virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event)

virtual void	wheelEvent (QGraphicsSceneWheelEvent *event)

virtual void	inputMethodEvent (QInputMethodEvent *event)

virtual QVariant	inputMethodQuery (Qt::InputMethodQuery query) const

virtual QVariant	itemChange (GraphicsItemChange change, const QVariant &value)

	QGraphicsItem (QGraphicsItemPrivate &dd, QGraphicsItem *parent)

void	addToIndex ()

void	removeFromIndex ()

void	prepareGeometryChange ()

Protected Member Functions inherited from QStandardItem
	QStandardItem (const QStandardItem &other)

	QStandardItem (QStandardItemPrivate &dd)

QStandardItem &	operator= (const QStandardItem &other)

void	emitDataChanged ()

Protected Member Functions inherited from QGraphicsRectItem
bool	supportsExtension (Extension extension) const override

void	setExtension (Extension extension, const QVariant &variant) override

QVariant	extension (const QVariant &variant) const override

Protected Member Functions inherited from QAbstractGraphicsShapeItem
	QAbstractGraphicsShapeItem (QAbstractGraphicsShapeItemPrivate &dd, QGraphicsItem *parent)

Protected Attributes inherited from QGraphicsItem
QScopedPointer< QGraphicsItemPrivate >	d_ptr

Protected Attributes inherited from QStandardItem
QScopedPointer< QStandardItemPrivate >	d_ptr

Related Functions inherited from QGraphicsItem
T	qgraphicsitem_cast (QGraphicsItem *item)

Related Functions inherited from QStandardItem
QDataStream &	operator>> (QDataStream &in, QStandardItem &item)

QDataStream &	operator<< (QDataStream &out, const QStandardItem &item)

Detailed Description

[0]

[1]

Definition at line 72 of file src_gui_graphicsview_qgraphicsitem.cpp.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
Type

Definition at line 75 of file src_gui_graphicsview_qgraphicsitem.cpp.

Constructor & Destructor Documentation

◆ CustomItem() [1/3]

CustomItem::CustomItem	(	qreal	x,
		qreal	y,
		qreal	width,
		qreal	height,
		QGraphicsItem *	parent = `nullptr`
	)

inline

Definition at line 71 of file tst_qgraphicseffect.cpp.

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◆ CustomItem() [2/3]

CustomItem::CustomItem	(	qreal	x,
		qreal	y,
		qreal	width,
		qreal	height
	)

inline

Definition at line 41 of file tst_qgraphicseffectsource.cpp.

◆ CustomItem() [3/3]

CustomItem::CustomItem	(	qreal	x,
		qreal	y,
		qreal	width,
		qreal	height,
		const QBrush &	brush = `QBrush()`
	)

Definition at line 86 of file customitem.cpp.

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◆ ~CustomItem()

virtual CustomItem::~CustomItem ( )

inlinevirtual

Definition at line 51 of file customitem.h.

Member Function Documentation

◆ boundingRect()

QRectF CustomItem::boundingRect ( ) const

inlineoverridevirtual

This pure virtual function defines the outer bounds of the item as a rectangle; all painting must be restricted to inside an item's bounding rect. QGraphicsView uses this to determine whether the item requires redrawing.

Although the item's shape can be arbitrary, the bounding rect is always rectangular, and it is unaffected by the items' transformation.

If you want to change the item's bounding rectangle, you must first call prepareGeometryChange(). This notifies the scene of the imminent change, so that it can update its item geometry index; otherwise, the scene will be unaware of the item's new geometry, and the results are undefined (typically, rendering artifacts are left within the view).

Reimplement this function to let QGraphicsView determine what parts of the widget, if any, need to be redrawn.

Note: For shapes that paint an outline / stroke, it is important to include half the pen width in the bounding rect. It is not necessary to compensate for antialiasing, though.

Example:

See also: boundingRegion(), shape(), contains(), {The Graphics View Coordinate System}, prepareGeometryChange()

Implements QGraphicsItem.

Definition at line 4122 of file tst_qgraphicsitem.cpp.

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◆ clone() [1/3]

QStandardItem * QStandardItem::clone

Returns a copy of this item. The item's children are not copied.

When subclassing QStandardItem, you can reimplement this function to provide QStandardItemModel with a factory that it can use to create new items on demand.

See also: QStandardItemModel::setItemPrototype(), operator=()

Definition at line 226 of file qstandarditemmodel.cpp.

◆ clone() [2/3]

QStandardItem* CustomItem::clone ( ) const

inlineoverridevirtual

Returns a copy of this item. The item's children are not copied.

When subclassing QStandardItem, you can reimplement this function to provide QStandardItemModel with a factory that it can use to create new items on demand.

See also: QStandardItemModel::setItemPrototype(), operator=()

Reimplemented from QStandardItem.

Definition at line 94 of file graphicsview.cpp.

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◆ clone() [3/3]

QStandardItem* CustomItem::clone ( ) const

inlineoverridevirtual

Returns a copy of this item. The item's children are not copied.

When subclassing QStandardItem, you can reimplement this function to provide QStandardItemModel with a factory that it can use to create new items on demand.

See also: QStandardItemModel::setItemPrototype(), operator=()

Reimplemented from QStandardItem.

Definition at line 1029 of file tst_qstandarditemmodel.cpp.

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◆ emitDataChanged()

void QStandardItem::emitDataChanged

Since: 4.4

Causes the model associated with this item to emit a \l{QAbstractItemModel::dataChanged()}{dataChanged}() signal for this item.

You normally only need to call this function if you have subclassed QStandardItem and reimplemented data() and/or setData().

See also: setData()

Definition at line 243 of file qstandarditemmodel.cpp.

◆ mousePressEvent()

void CustomItem::mousePressEvent ( QGraphicsSceneMouseEvent * event )

virtual

[5]

Reimplemented from QGraphicsItem.

Definition at line 130 of file graphicsview.cpp.

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◆ operator<()

bool CustomItem::operator< ( const QStandardItem & other ) const

inlineoverridevirtual

Returns true if this item is less than other; otherwise returns false.

The default implementation uses the data for the item's sort role (see QStandardItemModel::sortRole) to perform the comparison if the item belongs to a model; otherwise, the data for the item's Qt::DisplayRole (text()) is used to perform the comparison.

sortChildren() and QStandardItemModel::sort() use this function when sorting items. If you want custom sorting, you can subclass QStandardItem and reimplement this function.

Reimplemented from QStandardItem.

Definition at line 1028 of file tst_qstandarditem.cpp.

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◆ paint() [1/3]

void CustomItem::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

inlineoverridevirtual

This function, which is usually called by QGraphicsView, paints the contents of an item in local coordinates.

Reimplement this function in a QGraphicsItem subclass to provide the item's painting implementation, using painter. The option parameter provides style options for the item, such as its state, exposed area and its level-of-detail hints. The widget argument is optional. If provided, it points to the widget that is being painted on; otherwise, it is 0. For cached painting, widget is always 0.

The painter's pen is 0-width by default, and its pen is initialized to the QPalette::Text brush from the paint device's palette. The brush is initialized to QPalette::Window.

Make sure to constrain all painting inside the boundaries of boundingRect() to avoid rendering artifacts (as QGraphicsView does not clip the painter for you). In particular, when QPainter renders the outline of a shape using an assigned QPen, half of the outline will be drawn outside, and half inside, the shape you're rendering (e.g., with a pen width of 2 units, you must draw outlines 1 unit inside boundingRect()). QGraphicsItem does not support use of cosmetic pens with a non-zero width.

All painting is done in local coordinates.

Note: It is mandatory that an item will always redraw itself in the exact same way, unless update() was called; otherwise visual artifacts may occur. In other words, two subsequent calls to paint() must always produce the same output, unless update() was called between them.; Enabling caching for an item does not guarantee that paint() will be invoked only once by the Graphics View framework, even without any explicit call to update(). See the documentation of setCacheMode() for more details.

See also: setCacheMode(), QPen::width(), {Item Coordinates}, ItemUsesExtendedStyleOption

Implements QGraphicsItem.

Definition at line 4125 of file tst_qgraphicsitem.cpp.

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◆ paint() [2/3]

void CustomItem::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

inlineoverridevirtual

This function, which is usually called by QGraphicsView, paints the contents of an item in local coordinates.

Reimplement this function in a QGraphicsItem subclass to provide the item's painting implementation, using painter. The option parameter provides style options for the item, such as its state, exposed area and its level-of-detail hints. The widget argument is optional. If provided, it points to the widget that is being painted on; otherwise, it is 0. For cached painting, widget is always 0.

The painter's pen is 0-width by default, and its pen is initialized to the QPalette::Text brush from the paint device's palette. The brush is initialized to QPalette::Window.

Make sure to constrain all painting inside the boundaries of boundingRect() to avoid rendering artifacts (as QGraphicsView does not clip the painter for you). In particular, when QPainter renders the outline of a shape using an assigned QPen, half of the outline will be drawn outside, and half inside, the shape you're rendering (e.g., with a pen width of 2 units, you must draw outlines 1 unit inside boundingRect()). QGraphicsItem does not support use of cosmetic pens with a non-zero width.

All painting is done in local coordinates.

Note: It is mandatory that an item will always redraw itself in the exact same way, unless update() was called; otherwise visual artifacts may occur. In other words, two subsequent calls to paint() must always produce the same output, unless update() was called between them.; Enabling caching for an item does not guarantee that paint() will be invoked only once by the Graphics View framework, even without any explicit call to update(). See the documentation of setCacheMode() for more details.

See also: setCacheMode(), QPen::width(), {Item Coordinates}, ItemUsesExtendedStyleOption

Implements QGraphicsItem.

Definition at line 76 of file tst_qgraphicseffect.cpp.

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◆ paint() [3/3]

void CustomItem::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

inlineoverridevirtual

This function, which is usually called by QGraphicsView, paints the contents of an item in local coordinates.

Reimplement this function in a QGraphicsItem subclass to provide the item's painting implementation, using painter. The option parameter provides style options for the item, such as its state, exposed area and its level-of-detail hints. The widget argument is optional. If provided, it points to the widget that is being painted on; otherwise, it is 0. For cached painting, widget is always 0.

The painter's pen is 0-width by default, and its pen is initialized to the QPalette::Text brush from the paint device's palette. The brush is initialized to QPalette::Window.

Make sure to constrain all painting inside the boundaries of boundingRect() to avoid rendering artifacts (as QGraphicsView does not clip the painter for you). In particular, when QPainter renders the outline of a shape using an assigned QPen, half of the outline will be drawn outside, and half inside, the shape you're rendering (e.g., with a pen width of 2 units, you must draw outlines 1 unit inside boundingRect()). QGraphicsItem does not support use of cosmetic pens with a non-zero width.

All painting is done in local coordinates.

Note: It is mandatory that an item will always redraw itself in the exact same way, unless update() was called; otherwise visual artifacts may occur. In other words, two subsequent calls to paint() must always produce the same output, unless update() was called between them.; Enabling caching for an item does not guarantee that paint() will be invoked only once by the Graphics View framework, even without any explicit call to update(). See the documentation of setCacheMode() for more details.

See also: setCacheMode(), QPen::width(), {Item Coordinates}, ItemUsesExtendedStyleOption

QStandardItem::QStandardItem

Definition at line 239 of file qstandarditemmodel.cpp.

◆ QStandardItem() [17/18]

QStandardItem::QStandardItem

Definition at line 239 of file qstandarditemmodel.cpp.

◆ QStandardItem() [18/18]

QStandardItem::QStandardItem

Definition at line 239 of file qstandarditemmodel.cpp.

◆ reset() [1/2]

void CustomItem::reset ( )

inline

Definition at line 84 of file tst_qgraphicseffect.cpp.

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◆ reset() [2/2]

void CustomItem::reset ( )

inline

Definition at line 53 of file tst_qgraphicseffectsource.cpp.

◆ type() [1/4]

int CustomItem::type ( ) const

inlineoverridevirtual

Returns the type of this item. The type is used to distinguish custom items from the base class. When subclassing QStandardItem, you should reimplement this function and return a new value greater than or equal to \l UserType.

See also: QStandardItem::Type

Reimplemented from QStandardItem.

Definition at line 77 of file src_gui_graphicsview_qgraphicsitem.cpp.

◆ type() [2/4]

int CustomItem::type ( ) const

inlineoverridevirtual

Returns the type of this item. The type is used to distinguish custom items from the base class. When subclassing QStandardItem, you should reimplement this function and return a new value greater than or equal to \l UserType.

See also: QStandardItem::Type

Reimplemented from QStandardItem.

Definition at line 92 of file graphicsview.cpp.

◆ type() [3/4]

int CustomItem::type ( ) const

inlineoverridevirtual

Returns the type of this item. The type is used to distinguish custom items from the base class. When subclassing QStandardItem, you should reimplement this function and return a new value greater than or equal to \l UserType.

See also: QStandardItem::Type

Reimplemented from QStandardItem.

Definition at line 1026 of file tst_qstandarditem.cpp.

◆ type() [4/4]

int CustomItem::type ( ) const

inlineoverridevirtual

Returns the type of this item. The type is used to distinguish custom items from the base class. When subclassing QStandardItem, you should reimplement this function and return a new value greater than or equal to \l UserType.

See also: QStandardItem::Type

Reimplemented from QStandardItem.

Definition at line 1028 of file tst_qstandarditemmodel.cpp.

Member Data Documentation

◆ m_painter

QPainter * CustomItem::m_painter

Definition at line 92 of file tst_qgraphicseffect.cpp.

◆ m_styleOption

const QStyleOption* CustomItem::m_styleOption

Definition at line 93 of file tst_qgraphicseffect.cpp.

◆ numRepaints

int CustomItem::numRepaints

Definition at line 91 of file tst_qgraphicseffect.cpp.

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

src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp
tests/auto/widgets/effects/qgraphicseffect/tst_qgraphicseffect.cpp
tests/auto/widgets/graphicsview/qgraphicseffectsource/tst_qgraphicseffectsource.cpp
src/widgets/doc/snippets/graphicsview/graphicsview.cpp
tests/auto/gui/itemmodels/qstandarditem/tst_qstandarditem.cpp
tests/auto/gui/itemmodels/qstandarditemmodel/tst_qstandarditemmodel.cpp
tests/auto/widgets/graphicsview/qgraphicsitem/tst_qgraphicsitem.cpp
tests/manual/qgraphicsitemgroup/customitem.h
tests/manual/qgraphicsitemgroup/customitem.cpp

Public Types

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ CustomItem() [1/3]

◆ CustomItem() [2/3]

◆ CustomItem() [3/3]

◆ ~CustomItem()

Member Function Documentation

◆ boundingRect()

◆ clone() [1/3]

◆ clone() [2/3]

◆ clone() [3/3]

◆ emitDataChanged()

◆ mousePressEvent()

◆ operator<()

◆ paint() [1/3]

◆ paint() [2/3]

◆ paint() [3/3]

◆ QStandardItem() [1/18]

◆ QStandardItem() [2/18]

◆ QStandardItem() [3/18]

◆ QStandardItem() [4/18]

◆ QStandardItem() [5/18]

◆ QStandardItem() [6/18]

◆ QStandardItem() [7/18]

◆ QStandardItem() [8/18]

◆ QStandardItem() [9/18]

◆ QStandardItem() [10/18]

◆ QStandardItem() [11/18]

◆ QStandardItem() [12/18]

◆ QStandardItem() [13/18]

◆ QStandardItem() [14/18]

◆ QStandardItem() [15/18]

◆ QStandardItem() [16/18]

◆ QStandardItem() [17/18]

◆ QStandardItem() [18/18]

◆ reset() [1/2]

◆ reset() [2/2]

◆ type() [1/4]

◆ type() [2/4]

◆ type() [3/4]

◆ type() [4/4]

Member Data Documentation

◆ m_painter

◆ m_styleOption

◆ numRepaints