PortPositionExtension extension

Extension on PortPosition providing centralized port geometry calculations.

All port position-related calculations should use these methods to ensure consistency across the codebase. This includes:

• Connection attachment points
• Visual center positions
• Widget origin positions

on

• PortPosition

Properties

isHorizontal → bool

Available on PortPosition, provided by the PortPositionExtension extension

Whether the perpendicular axis is horizontal (left/right ports) or vertical (top/bottom ports).

no setter

isVertical → bool

Available on PortPosition, provided by the PortPositionExtension extension

Whether the perpendicular axis is vertical (top/bottom ports).

no setter

normal → Offset

Available on PortPosition, provided by the PortPositionExtension extension

Returns the outward normal direction for this port position.

no setter

Methods

calculateOrigin({required Offset anchorOffset, required Size portSize, required Offset portAdjustment, required bool useAnchorForPerpendicularAxis}) → Offset

Available on PortPosition, provided by the PortPositionExtension extension

Calculates the port widget's top-left origin position relative to an anchor.

connectionOffset(Size portSize) → Offset

Available on PortPosition, provided by the PortPositionExtension extension

Returns the offset from port's top-left to the connection attachment point.

toOrientation() → ShapeDirection

Available on PortPosition, provided by the PortPositionExtension extension

Converts to ShapeDirection for shape-based calculations.