# Class BackgroundFill

java.lang.Object
javafx.scene.layout.BackgroundFill

All Implemented Interfaces:
  `Interpolatable<BackgroundFill>`

public final class BackgroundFill extends Object implements Interpolatable<BackgroundFill>
The fill and associated properties that direct how to fill the background of a `Region`. Because BackgroundFill is an immutable object, it can safely be used in any cache, and can safely be reused among multiple Regions or multiple times in the same Region.

All BackgroundFills are drawn in order.

When applied to a Region with a defined shape, the corner radii are ignored.

Since:
  JavaFX 8.0

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `BackgroundFill(Paint fill, CornerRadii radii, Insets insets)`
  Creates a new BackgroundFill with the specified fill, radii, and insets.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `final Paint`
  `getFill()`
  The Paint to use for filling the background of the `Region`.
  `final Insets`
  `getInsets()`
  The Insets to use for this fill.
  `final CornerRadii`
  `getRadii()`
  The Radii to use for representing the four radii of the BackgroundFill.
  `BackgroundFill`
  `interpolate(BackgroundFill endValue, double t)`
  Returns an intermediate value between the value of this `Interpolatable` and the specified `endValue` using the linear interpolation factor `t`.

  ### Methods declared in class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### BackgroundFill

    public BackgroundFill(Paint fill, CornerRadii radii, Insets insets)
    Creates a new BackgroundFill with the specified fill, radii, and insets. Null values are acceptable, but default values will be used in place of any null value.
    Parameters:
      `fill` - Any Paint. If null, the value Color.TRANSPARENT is used.
      `radii` - The corner Radii. If null, the value Radii.EMPTY is used.
      `insets` - The insets. If null, the value Insets.EMPTY is used.

- ## Method Details

  - ### getFill

    public final Paint getFill()
    The Paint to use for filling the background of the `Region`. This value will never be null.
    Interpolation Type:
      see `Paint`
    Returns:
      the Paint to use for filling the background of the `Region`

  - ### getRadii

    public final CornerRadii getRadii()
    The Radii to use for representing the four radii of the BackgroundFill. Each corner can therefore be independently specified. This will never be null. The radii values will never be negative.
    Interpolation Type:
      default
    Returns:
      the Radii to use for representing the four radii of the BackgroundFill

  - ### getInsets

    public final Insets getInsets()
    The Insets to use for this fill. Each inset indicates at what distance from the Region's bounds the drawing should begin. The insets will never be null, but the values may be negative in order to position the border beyond the natural bounds (that is, (0, 0, width, height)) of the Region.
    Interpolation Type:
      default
    Returns:
      the Insets to use for this fill

  - ### interpolate

    public BackgroundFill interpolate(BackgroundFill endValue, double t)
    Returns an intermediate value between the value of this `Interpolatable` and the specified `endValue` using the linear interpolation factor `t`. The interpolation factor can be any finite value.

    The returned value might not be a new instance; the implementation might also return one of the two existing instances if the intermediate value would be equal to one of the existing values. However, this is an optimization and applications should not assume any particular identity of the returned value.

    Specified by:
      `interpolate` in interface `Interpolatable<BackgroundFill>`
    Parameters:
      `endValue` - the target value
      `t` - the interpolation factor
    Returns:
      the intermediate value
    Throws:
      `NullPointerException` - if `endValue` is `null`
    Since:
      24