RectClipper class

A custom clipper that clips a rectangular region based on the provided direction and clip factor.

The RectClipper is used to clip a rectangular region within a widget. The clipping can be controlled by specifying the direction and clipFactor.

The direction determines the direction of clipping and can be either SliderDirection.horizontal or SliderDirection.vertical. For the horizontal direction, the clipping width is calculated as the product of the widget's width and the clipFactor. For the vertical direction, the clipping height is calculated as the product of the widget's height and the clipFactor.

The clipFactor specifies the fraction of the widget's size that should be clipped. It should be a value between 0.0 and 1.0, where 0.0 indicates no clipping and 1.0 indicates full clipping.

Inheritance

Constructors

RectClipper({required SliderDirection direction, required double clipFactor})
Creates a RectClipper with the specified direction and clip factor.
const

Properties

clipFactor → double
The fraction of the widget's size to be clipped.
final
direction → SliderDirection
The direction in which the clipping should occur.
final
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to reclip.
inherited
getApproximateClipRect(Size size) → Rect
Returns an approximation of the clip returned by getClip, as an axis-aligned Rect. This is used by the semantics layer to determine whether widgets should be excluded.
inherited
getClip(Size size) → Rect
Returns a description of the clip given that the render object being clipped is of the given size.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies when it is time to reclip.
inherited
shouldReclip(covariant RectClipper oldClipper) → bool
Called whenever a new instance of the custom clipper delegate class is provided to the clip object, or any time that a new clip object is created with a new instance of the custom clipper delegate class (which amounts to the same thing, because the latter is implemented in terms of the former).
override
toString() → String
A string representation of this object.
inherited

Operators

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