CanvasObjectConstraints class

Canvas object editing constraints.

Constraints are enforced by controller resize and move operations. Browser controllers automatically know the mounted canvas size; server-safe stubs can call CanvasController.setCanvasSize when preventOutsideCanvas is needed during tests or SSR-compatible logic.

Constructors

CanvasObjectConstraints({double minWidth = 1, double minHeight = 1, double? maxWidth, double? maxHeight, bool keepAspectRatio = false, bool lockMovementX = false, bool lockMovementY = false, bool preventOutsideCanvas = false})

Creates object editing constraints.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

keepAspectRatio → bool

Whether resize operations should preserve aspect ratio.

final

lockMovementX → bool

Whether horizontal movement is locked.

final

lockMovementY → bool

Whether vertical movement is locked.

final

maxHeight → double?

Optional maximum object height.

final

maxWidth → double?

Optional maximum object width.

final

minHeight → double

Minimum object height.

final

minWidth → double

Minimum object width.

final

preventOutsideCanvas → bool

Whether objects should stay inside the canvas viewport.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited