Class: QgsModelArrowItem

class qgis.gui.QgsModelArrowItem

Bases: PyQt5.QtCore.QObject, PyQt5.QtWidgets.QGraphicsPathItem

A link arrow item for use in the model designer.

Warning

Not stable API

Added in version 3.14.

QgsModelArrowItem(startItem: Optional[QgsModelComponentGraphicItem], startEdge: Qt.Edge, startIndex: int, startIsOutgoing: bool, startMarker: QgsModelArrowItem.Marker, endItem: Optional[QgsModelComponentGraphicItem], endEdge: Qt.Edge, endIndex: int, endIsIncoming: bool, endMarker: QgsModelArrowItem.Marker) Constructor for QgsModelArrowItem, with the specified parent item.

The arrow will link startItem to endItem, joining the specified startEdge and startIndex to endEdge and endIndex.

QgsModelArrowItem(startItem: Optional[QgsModelComponentGraphicItem], startEdge: Qt.Edge, startIndex: int, startMarker: QgsModelArrowItem.Marker, endItem: Optional[QgsModelComponentGraphicItem], endMarker: QgsModelArrowItem.Marker) Constructor for QgsModelArrowItem, with the specified parent item.

The arrow will link startItem to endItem, joining the specified startEdge and startIndex to an automatic point on endItem.

QgsModelArrowItem(startItem: Optional[QgsModelComponentGraphicItem], startMarker: QgsModelArrowItem.Marker, endItem: Optional[QgsModelComponentGraphicItem], endEdge: Qt.Edge, endIndex: int, endMarker: QgsModelArrowItem.Marker) Constructor for QgsModelArrowItem, with the specified parent item.

The arrow will link startItem to endItem, joining an automatic point on startItem to the specified endEdge and endIndex.

QgsModelArrowItem(startItem: Optional[QgsModelComponentGraphicItem], startMarker: QgsModelArrowItem.Marker, endItem: Optional[QgsModelComponentGraphicItem], endMarker: QgsModelArrowItem.Marker) Constructor for QgsModelArrowItem, with the specified parent item.

The arrow will link startItem to endItem, joining an automatic points on both items.

Methods

childEvent
connectNotify
contextMenuEvent
customEvent
disconnectNotify
dragEnterEvent
dragLeaveEvent
dragMoveEvent
dropEvent
focusInEvent
focusOutEvent
hoverEnterEvent
hoverLeaveEvent
hoverMoveEvent
inputMethodEvent
inputMethodQuery
isSignalConnected
itemChange
keyPressEvent
keyReleaseEvent
mouseDoubleClickEvent
mouseMoveEvent
mousePressEvent
mouseReleaseEvent
paint	param painter:
prepareGeometryChange
receivers
sceneEvent
sceneEventFilter
sender
senderSignalIndex
setPenStyle	Sets the pen style to use for rendering the arrow line.
timerEvent
updateMicroFocus
updatePath	Updates the cached path linking the two items.
wheelEvent

Signals

ArrowHead
Circle

Attributes

ArrowHead
Circle

ArrowHead = 1

Circle = 0

class Marker

Bases: int

childEvent(self, a0: QChildEvent | None)

connectNotify(self, signal: QMetaMethod)

contextMenuEvent(self, event: QGraphicsSceneContextMenuEvent | None)

customEvent(self, a0: QEvent | None)

disconnectNotify(self, signal: QMetaMethod)

dragEnterEvent(self, event: QGraphicsSceneDragDropEvent | None)

dragLeaveEvent(self, event: QGraphicsSceneDragDropEvent | None)

dragMoveEvent(self, event: QGraphicsSceneDragDropEvent | None)

dropEvent(self, event: QGraphicsSceneDragDropEvent | None)

focusInEvent(self, event: QFocusEvent | None)

focusOutEvent(self, event: QFocusEvent | None)

hoverEnterEvent(self, event: QGraphicsSceneHoverEvent | None)

hoverLeaveEvent(self, event: QGraphicsSceneHoverEvent | None)

hoverMoveEvent(self, event: QGraphicsSceneHoverEvent | None)

inputMethodEvent(self, event: QInputMethodEvent | None)

inputMethodQuery(self, query: Qt.InputMethodQuery) → Any

isSignalConnected(self, signal: QMetaMethod) → bool

itemChange(self, change: QGraphicsItem.GraphicsItemChange, value: Any) → Any

keyPressEvent(self, event: QKeyEvent | None)

keyReleaseEvent(self, event: QKeyEvent | None)

mouseDoubleClickEvent(self, event: QGraphicsSceneMouseEvent | None)

mouseMoveEvent(self, event: QGraphicsSceneMouseEvent | None)

mousePressEvent(self, event: QGraphicsSceneMouseEvent | None)

mouseReleaseEvent(self, event: QGraphicsSceneMouseEvent | None)

paint(self, painter: QPainter | None, option: QStyleOptionGraphicsItem | None, widget: QWidget | None = None)

Parameters:

• painter (Optional[QPainter])

• option (Optional[QStyleOptionGraphicsItem])

• widget (Optional[QWidget] = None)

prepareGeometryChange(self)

receivers(self, signal: PYQT_SIGNAL) → int

sceneEvent(self, event: QEvent | None) → bool

sceneEventFilter(self, watched: QGraphicsItem | None, event: QEvent | None) → bool

sender(self) → QObject | None

senderSignalIndex(self) → int

setPenStyle(self, style: Qt.PenStyle)

Sets the pen style to use for rendering the arrow line.

Parameters:

style (Qt.PenStyle)

timerEvent(self, a0: QTimerEvent | None)

updateMicroFocus(self)

updatePath(self)

Updates the cached path linking the two items.

wheelEvent(self, event: QGraphicsSceneWheelEvent | None)