QgsMapCanvasAnnotationItem class

An interactive map canvas item which displays a QgsAnnotation.

Base classes

class QgsMapCanvasItem: An abstract class for items that can be placed on the map canvas.

enum MouseMoveAction { NoAction, MoveMapPosition, MoveFramePosition, ResizeFrameUp, ResizeFrameDown, ResizeFrameLeft, ResizeFrameRight, ResizeFrameLeftUp, ResizeFrameRightUp, ResizeFrameLeftDown, ResizeFrameRightDown }: Mouse actions for interacting with item.

QgsMapCanvasAnnotationItem(QgsAnnotation* annotation, QgsMapCanvas* mapCanvas): Constructor for QgsMapCanvasAnnotationItem.

auto annotation() const -> const QgsAnnotation*: Returns the item's annotation.
auto annotation() -> QgsAnnotation*: Returns the item's annotation.
auto cursorShapeForAction(MouseMoveAction moveAction) const -> Qt::CursorShape: Returns matching cursor shape for a mouse move action.
auto moveActionForPosition(QPointF pos) const -> MouseMoveAction: Returns the mouse move behavior for a given position in scene coordinates.
void paint(QPainter* painter) override: function to be implemented by derived classes
void updatePosition() override: called on changed extent or resize event to update position of the item

Mouse actions for interacting with item.

Enumerators
NoAction	No action.
MoveMapPosition	Moving annotation map position.
MoveFramePosition	Moving position of frame relative to annotation.
ResizeFrameUp	Resize frame up.
ResizeFrameDown	Resize frame down.
ResizeFrameLeft	Resize frame left.
ResizeFrameRight	Resize frame right.
ResizeFrameLeftUp	Resize frame left up.
ResizeFrameRightUp	Resize frame right up.
ResizeFrameLeftDown	Resize frame left down.
ResizeFrameRightDown	Resize frame right down.

Returns the item's annotation.