Annotation class

An annotation which can be attached to a Graph.

The annotation can be moved around on the graph by dragging the mouse while pressing the left mouse button. The annotation can hold a Widget of any kind specified by child

Constructors

Annotation({required double width, required double height, Offset position = Offset.infinite, dynamic onDragStart(DraggablePlotObject obj)?, dynamic onDragEnd(DraggablePlotObject obj)?, Widget? child})

Properties

child → Widget

no setter

halfHeight → double

The half of the height, for isHit calculation purposes

final, inherited

halfWidth → double

The half of the width, for isHit calculation purposes

final, inherited

hashCode → int

The hash code for this object.

no setter, override

height → double

The hit box height of the object in pixels.

final, inherited

onDragEnd ↔ dynamic Function(DraggablePlotObject obj)?

Function called every time the PlotObject has been moved

getter/setter pair, inherited

onDragStart ↔ dynamic Function(DraggablePlotObject obj)?

Function called every time the PlotObject is hit.

getter/setter pair, inherited

position ↔ Offset

The local position within the plot of the object.

getter/setter pair, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

width → double

The hit box width of the object in pixels.

final, inherited

Methods

isHit(PointerDownEvent event, Matrix4 transform) → bool

Logic for deciding if the object is hit or not.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onDrag(PointerMoveEvent event, Matrix4 eventTransform) → void

Function called on PointerMoveEvent if this object is hit.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

override