ArrowElement class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ArrowElement
Constructors
-
ArrowElement({Key? key, required String id, required Widget child, String? targetId, List<
String> ? targetIds, bool show = true, AlignmentGeometry sourceAnchor = Alignment.centerLeft, AlignmentGeometry targetAnchor = Alignment.centerLeft, bool doubleSided = false, Color color = Colors.blue, double width = 3, double tipLength = 15, double tipAngleOutwards = pi * 0.2, double bow = 0.2, double stretchMin = 0, double stretchMax = 420, double stretch = 0.5, double padStart = 0, double padEnd = 0, bool flip = false, bool straights = true, ArcDirection arcDirection = ArcDirection.Auto}) -
const
Properties
- arcDirection → ArcDirection
-
If arrow is not straight, which direction the arc should follow
final
- bow → double
-
A value representing the natural bow of the arrow.
At 0, all lines will be straight.
final
- child → Widget
-
A Widget to be drawn to or from
final
- color → Color
-
Arrow color
final
- doubleSided → bool
-
Whether the arrow should be pointed both ways
final
- flip → bool
-
Whether to reflect the arrow's bow angle.
Only used if
arcRotationis ArcDirection.Autofinal - hashCode → int
-
The hash code for this object.
no setterinherited
- id → String
-
ID for being targeted by other ArrowElements
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- padEnd → double
-
How far the arrow's ending point should be from the provided end point.
final
- padStart → double
-
How far the arrow's starting point should be from the provided start point.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- show → bool
-
Whether to show the arrow
final
- sourceAnchor → AlignmentGeometry
-
Where on the source Widget the arrow should start
final
- straights → bool
-
Whether to use straight lines at 45 degree angles.
final
- stretch → double
-
The effect that the arrow's length will have, relative to its minStretch
and maxStretch, on the bow of the arrow. At 0, the stretch will have no effect.
final
- stretchMax → double
-
The length of the arrow at which the stretch should have no effect.
final
- stretchMin → double
-
The length of the arrow where the line should be most stretched. Shorter
distances than 0 will have no additional effect on the bow of the arrow.
final
- targetAnchor → AlignmentGeometry
-
Where on the target Widget the arrow should end
final
- targetId → String?
-
The ID of the ArrowElement that will be drawn to
final
-
targetIds
→ List<
String> ? -
A List of IDs of ArrowElement that will be drawn to
final
- tipAngleOutwards → double
-
Outwards angle of arrow tip, in radians
final
- tipLength → double
-
Length of arrow tip
final
- width → double
-
Arrow width
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → ArrowElementState -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects describing this node's children.inherited -
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited