Class: QgsLayoutItemMarker

class qgis.core.QgsLayoutItemMarker

Bases: QgsLayoutItem

A layout item for showing marker symbols.

New in version 3.14.

QgsLayoutItemMarker(layout: QgsLayout) Constructor for QgsLayoutItemMarker, with the specified parent layout.

Methods

accept

param visitor

adjustPointForReferencePosition

Adjusts the specified point at which a reference position of the item sits and returns the top left corner of the item, if reference point were placed at the specified position.

applyDataDefinedSize

Applies any present data defined size overrides to the specified layout size.

applyItemSizeConstraint

Applies any item-specific size constraint handling to a given targetSize in layout units.

boundingRect

rtype

QRectF

childEvent

connectNotify

contextMenuEvent

create

Returns a new marker item for the specified layout.

customEvent

disconnectNotify

dragEnterEvent

dragLeaveEvent

dragMoveEvent

draw

param context

drawBackground

Draws the background for the item.

drawDebugRect

Draws a debugging rectangle of the item’s current bounds within the specified painter.

drawFrame

Draws the frame around the item.

dropEvent

finalizeRestoreFromXml

fixedSize

rtype

QgsLayoutSize

focusInEvent

focusOutEvent

framePath

Returns the path to use when drawing the item’s frame or background.

hoverEnterEvent

hoverLeaveEvent

hoverMoveEvent

icon

rtype

QIcon

inputMethodEvent

inputMethodQuery

isSignalConnected

itemChange

keyPressEvent

keyReleaseEvent

linkedMap

Returns the linked rotation map, if set.

mouseDoubleClickEvent

mouseMoveEvent

mousePressEvent

mouseReleaseEvent

northArrowRotation

When the marker is linked to a map in north arrow rotation mode, returns the current north arrow rotation for the marker.

northMode

Returns the mode used to align the marker to a map’s North.

northOffset

Returns the offset added to the marker’s rotation from a map’s North.

positionAtReferencePoint

Returns the current position (in layout units) of a reference point for the item.

prepareGeometryChange

readObjectPropertiesFromElement

Sets object properties from a DOM element

readPropertiesFromElement

param element

receivers

refreshBackgroundColor

Refresh item’s background color, considering data defined colors.

refreshBlendMode

Refresh item’s blend mode, considering data defined blend mode.

refreshFrame

Refresh item’s frame, considering data defined colors and frame size.

refreshItemPosition

Refreshes an item’s position by rechecking it against any possible overrides such as data defined positioning.

refreshItemRotation

Refreshes an item’s rotation by rechecking it against any possible overrides such as data defined rotation.

refreshItemSize

Refreshes an item’s size by rechecking it against any possible item fixed or minimum sizes.

refreshOpacity

Refresh item’s opacity, considering data defined opacity.

sceneEvent

sceneEventFilter

sender

senderSignalIndex

setFixedSize

Sets a fixed size for the layout item, which prevents it from being freely resized.

setLinkedMap

Sets the map object for rotation.

setMinimumSize

Sets the minimum allowed size for the layout item.

setNorthMode

Sets the mode used to align the marker to a map’s North.

setNorthOffset

Sets the offset added to the marker’s rotation from a map’s North.

setSymbol

Sets the marker symbol used to draw the shape.

symbol

Returns the marker symbol used to draw the shape.

timerEvent

topLeftToReferencePoint

Returns the position for the reference point of the item, if the top-left of the item was placed at the specified point.

type

rtype

int

updateMicroFocus

wheelEvent

writeObjectPropertiesToElement

Stores object properties within an XML DOM element.

writePropertiesToElement

param element

accept(self, visitor: QgsStyleEntityVisitorInterface)bool
Parameters

visitor (QgsStyleEntityVisitorInterface) –

Return type

bool

adjustPointForReferencePosition(self, point: Union[QPointF, QPoint], size: QSizeF, reference: QgsLayoutItem.ReferencePoint)QPointF

Adjusts the specified point at which a reference position of the item sits and returns the top left corner of the item, if reference point were placed at the specified position.

applyDataDefinedSize(self, size: QgsLayoutSize)QgsLayoutSize

Applies any present data defined size overrides to the specified layout size.

applyItemSizeConstraint(self, targetSize: QSizeF)QSizeF

Applies any item-specific size constraint handling to a given targetSize in layout units. Subclasses can override this method if they need to apply advanced logic regarding item sizes, which cannot be covered by setFixedSize() or setMinimumSize(). Item size constraints are applied after fixed, minimum and data defined size constraints.

See also

setFixedSize()

See also

setMinimumSize()

boundingRect(self)QRectF
Return type

QRectF

childEvent(self, QChildEvent)
connectNotify(self, QMetaMethod)
contextMenuEvent(self, QGraphicsSceneContextMenuEvent)
create(layout: QgsLayout)QgsLayoutItemMarker

Returns a new marker item for the specified layout.

The caller takes responsibility for deleting the returned object.

Parameters

layout (QgsLayout) –

Return type

QgsLayoutItemMarker

customEvent(self, QEvent)
disconnectNotify(self, QMetaMethod)
dragEnterEvent(self, QGraphicsSceneDragDropEvent)
dragLeaveEvent(self, QGraphicsSceneDragDropEvent)
dragMoveEvent(self, QGraphicsSceneDragDropEvent)
draw(self, context: QgsLayoutItemRenderContext)
Parameters

context (QgsLayoutItemRenderContext) –

drawBackground(self, context: QgsRenderContext)

Draws the background for the item.

See also

framePath()

drawDebugRect(self, painter: QPainter)

Draws a debugging rectangle of the item’s current bounds within the specified painter.

Parameters

painter – destination QPainter

drawFrame(self, context: QgsRenderContext)

Draws the frame around the item.

See also

framePath()

dropEvent(self, QGraphicsSceneDragDropEvent)
finalizeRestoreFromXml(self)
fixedSize(self)QgsLayoutSize
Return type

QgsLayoutSize

focusInEvent(self, QFocusEvent)
focusOutEvent(self, QFocusEvent)
framePath(self)QPainterPath

Returns the path to use when drawing the item’s frame or background.

See also

drawFrame()

See also

drawBackground()

New in version 3.16.

hoverEnterEvent(self, QGraphicsSceneHoverEvent)
hoverLeaveEvent(self, QGraphicsSceneHoverEvent)
hoverMoveEvent(self, QGraphicsSceneHoverEvent)
icon(self)QIcon
Return type

QIcon

inputMethodEvent(self, QInputMethodEvent)
inputMethodQuery(self, Qt.InputMethodQuery)Any
isSignalConnected(self, QMetaMethod)bool
itemChange(self, QGraphicsItem.GraphicsItemChange, Any)Any
keyPressEvent(self, QKeyEvent)
keyReleaseEvent(self, QKeyEvent)
linkedMap(self)QgsLayoutItemMap

Returns the linked rotation map, if set. An None means map rotation is disabled. If this is set then the marker is rotated by the same amount as the specified map object.

See also

setLinkedMap()

Return type

QgsLayoutItemMap

mouseDoubleClickEvent(self, QGraphicsSceneMouseEvent)
mouseMoveEvent(self, QGraphicsSceneMouseEvent)
mousePressEvent(self, QGraphicsSceneMouseEvent)
mouseReleaseEvent(self, QGraphicsSceneMouseEvent)
northArrowRotation(self)float

When the marker is linked to a map in north arrow rotation mode, returns the current north arrow rotation for the marker.

See also

setLinkedMap()

Return type

float

northMode(self)QgsLayoutNorthArrowHandler.NorthMode

Returns the mode used to align the marker to a map’s North.

See also

setNorthMode()

See also

northOffset()

Return type

QgsLayoutNorthArrowHandler.NorthMode

northOffset(self)float

Returns the offset added to the marker’s rotation from a map’s North.

See also

setNorthOffset()

See also

northMode()

Return type

float

positionAtReferencePoint(self, reference: QgsLayoutItem.ReferencePoint)QPointF

Returns the current position (in layout units) of a reference point for the item.

prepareGeometryChange(self)
readObjectPropertiesFromElement(self, parentElement: QDomElement, document: QDomDocument, context: QgsReadWriteContext)bool

Sets object properties from a DOM element

Parameters
  • parentElement – is the parent DOM element for the object

  • document – DOM document

  • context – read write context

Returns

True if read was successful

readPropertiesFromElement(self, element: QDomElement, document: QDomDocument, context: QgsReadWriteContext)bool
Parameters
Return type

bool

receivers(self, PYQT_SIGNAL)int
refreshBackgroundColor(self, updateItem: bool = True)

Refresh item’s background color, considering data defined colors. If updateItem is set to False, the item will not be automatically updated after the frame color is set and a later call to update() must be made.

refreshBlendMode(self)

Refresh item’s blend mode, considering data defined blend mode.

refreshFrame(self, updateItem: bool = True)

Refresh item’s frame, considering data defined colors and frame size. If updateItem is set to False, the item will not be automatically updated after the frame is set and a later call to update() must be made.

refreshItemPosition(self)

Refreshes an item’s position by rechecking it against any possible overrides such as data defined positioning.

refreshItemRotation(self, origin: Union[QPointF, QPoint] = None)

Refreshes an item’s rotation by rechecking it against any possible overrides such as data defined rotation.

The optional origin point specifies the origin (in item coordinates) around which the rotation should be applied.

refreshItemSize(self)

Refreshes an item’s size by rechecking it against any possible item fixed or minimum sizes.

See also

setFixedSize()

See also

setMinimumSize()

refreshOpacity(self, updateItem: bool = True)

Refresh item’s opacity, considering data defined opacity. If updateItem is set to False the item will not be automatically updated after the opacity is set and a later call to update() must be made.

sceneEvent(self, QEvent)bool
sceneEventFilter(self, QGraphicsItem, QEvent)bool
sender(self)QObject
senderSignalIndex(self)int
setFixedSize(self, size: QgsLayoutSize)

Sets a fixed size for the layout item, which prevents it from being freely resized. Set an empty size if item can be freely resized.

See also

fixedSize()

See also

setMinimumSize()

setLinkedMap(self, map: QgsLayoutItemMap)

Sets the map object for rotation.

If this is set then the marker will be rotated by the same amount as the specified map object. This is useful especially for syncing north arrows with a map item.

See also

linkedMap()

Parameters

map (QgsLayoutItemMap) –

setMinimumSize(self, size: QgsLayoutSize)

Sets the minimum allowed size for the layout item. Set an empty size if item can be freely resized.

See also

minimumSize()

See also

setFixedSize()

setNorthMode(self, mode: QgsLayoutNorthArrowHandler.NorthMode)

Sets the mode used to align the marker to a map’s North.

See also

northMode()

See also

setNorthOffset()

Parameters

mode (QgsLayoutNorthArrowHandler.NorthMode) –

setNorthOffset(self, offset: float)

Sets the offset added to the marker’s rotation from a map’s North.

See also

northOffset()

See also

setNorthMode()

Parameters

offset (float) –

setSymbol(self, symbol: QgsMarkerSymbol)

Sets the marker symbol used to draw the shape. Ownership is transferred.

See also

symbol()

Parameters

symbol (QgsMarkerSymbol) –

symbol(self)QgsMarkerSymbol

Returns the marker symbol used to draw the shape.

See also

setSymbol()

Return type

QgsMarkerSymbol

timerEvent(self, QTimerEvent)
topLeftToReferencePoint(self, point: QgsLayoutPoint)QgsLayoutPoint

Returns the position for the reference point of the item, if the top-left of the item was placed at the specified point.

type(self)int
Return type

int

updateMicroFocus(self)
wheelEvent(self, QGraphicsSceneWheelEvent)
writeObjectPropertiesToElement(self, parentElement: QDomElement, document: QDomDocument, context: QgsReadWriteContext)bool

Stores object properties within an XML DOM element.

Parameters
  • parentElement – is the parent DOM element to store the object’s properties in

  • document – DOM document

  • context – read write context

Returns

True if write was successful

writePropertiesToElement(self, element: QDomElement, document: QDomDocument, context: QgsReadWriteContext)bool
Parameters
Return type

bool