LinkData class

Class that carries all link data.

Mixed-in types

Constructors

LinkData({required String id, required String sourceComponentId, required String targetComponentId, LinkStyle? linkStyle, required List<Offset> linkPoints, dynamic data})
Represents data of a link/connection in the model.
LinkData.fromJson(Map<String, dynamic> json, {dynamic decodeCustomLinkData(Map<String, dynamic> json)?})

Properties

areJointsVisible ↔ bool
Defines the visibility of link's joints.
getter/setter pair
data ↔ dynamic
Dynamic data for you to define your own data for this link.
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
id → String
Unique link id.
final
linkPoints → List<Offset>
Points from which the link is drawn on canvas.
final
linkStyle → LinkStyle
Defines link design such as color, width and arrowheads.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sourceComponentId → String
Id of source component.
final
targetComponentId → String
Id of target component.
final

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
determineLinkSegmentIndex(Offset position, Offset canvasPosition, double canvasScale) → int?
If a link is compound from more than one segments this returns an index of the link segment, which was tapped on.
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
getLinkPoints() → List<Offset>
Returns list of all point of the link.
hideJoints() → void
Hides all link's joint.
insertMiddlePoint(Offset position, int index) → void
Adds a new point to link on point location.
moveAllMiddlePoints(Offset position) → void
Updates all link's middle points position by offset.
moveMiddlePoint(Offset offset, int index) → void
Updates link's point position by offset.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
removeMiddlePoint(int index) → void
Removes the point on index^th place from the link.
setEnd(Offset end) → void
Sets the position of the last point of the link which lies on the target component.
setEndpoints(Offset start, Offset end) → void
Sets the position of both first and last point of the link.
setMiddlePointPosition(Offset position, int index) → void
Sets the new position (point) to the existing link's point.
setStart(Offset start) → void
Sets the position of the first point of the link which lies on the source component.
showJoints() → void
Makes all link's joint visible.
toJson() → Map<String, dynamic>
toString() → String
A string representation of this object.
inherited
Updates this link on the canvas.

Operators

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