ConnectionPainter class

Constructors

ConnectionPainter({required NodeFlowTheme theme, NodeShape? nodeShape(Node node)?})

Properties

hashCode → int
The hash code for this object.
no setterinherited
nodeShape ↔ NodeShape? Function(Node node)?
Optional function to get the shape for a node. Used to calculate correct port positions for shaped nodes.
getter/setter pair
pathCache → ConnectionPathCache
Gets the connection path cache Used by label calculator to leverage cached paths
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
theme → NodeFlowTheme
no setter

Methods

clearAllCachedPaths() → void
Clear all cached paths (useful for bulk operations or theme changes)
dispose() → void
Dispose and clear all cached paths
getCacheStats() → Map<String, dynamic>
Get cache statistics for debugging
hasConnectionCached(String connectionId) → bool
Check if a connection has a cached path
hitTestConnection({required Connection connection, required Node sourceNode, required Node targetNode, required Offset testPoint, double? tolerance}) → bool
Test if a point is near a connection path using cached paths for performance Returns true if the point is within the specified tolerance distance from the path
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paintConnection(Canvas canvas, Connection connection, Node sourceNode, Node targetNode, {bool isSelected = false, bool isAnimated = false, double? animationValue}) → void
paintTemporaryConnection(Canvas canvas, Offset startPoint, Offset currentPoint, {Port? sourcePort, Port? targetPort, bool isReversed = false}) → void
removeConnectionFromCache(String connectionId) → void
Remove cached path when connection is deleted
toString() → String
A string representation of this object.
inherited
updateNodeShape(NodeShape? getter(Node node)?) → void
Update the node shape getter This allows updating how shapes are determined for nodes after painter creation
updateTheme(NodeFlowTheme newTheme) → void
Update the theme Cache invalidation is handled by the path cache itself

Operators

operator ==(Object other) → bool
The equality operator.
inherited