Class MultipleGradientPaint

java.lang.Object

java.awt.MultipleGradientPaint

All Implemented Interfaces:

Paint, Transparency

Direct Known Subclasses:

LinearGradientPaint, RadialGradientPaint

public abstract sealed class MultipleGradientPaint
extends Object
implements Paint
permits LinearGradientPaint, RadialGradientPaint

This is the superclass for Paints which use a multiple color gradient to fill in their raster. It provides storage for variables and enumerated values common to LinearGradientPaint and RadialGradientPaint.

Sealed Class Hierarchy Graph:

Since:

1.6

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	MultipleGradientPaint.ColorSpaceType	The color space in which to perform the gradient interpolation.
static enum	MultipleGradientPaint.CycleMethod	The method to use when painting outside the gradient bounds.

Field Summary

Fields declared in interface Transparency

BITMASK, OPAQUE, TRANSLUCENT

Modifier and Type	Field	Description
static final int	BITMASK	Represents image data that is guaranteed to be either completely opaque, with an alpha value of 1.0, or completely transparent, with an alpha value of 0.0.
static final int	OPAQUE	Represents image data that is guaranteed to be completely opaque, meaning that all pixels have an alpha value of 1.0.
static final int	TRANSLUCENT	Represents image data that contains or might contain arbitrary alpha values between and including 0.0 and 1.0.

Method Summary

Modifier and Type	Method	Description
final Color[]	getColors()	Returns a copy of the array of colors used by this gradient.
final MultipleGradientPaint.ColorSpaceType	getColorSpace()	Returns the enumerated type which specifies color space for interpolation.
final MultipleGradientPaint.CycleMethod	getCycleMethod()	Returns the enumerated type which specifies cycling behavior.
final float[]	getFractions()	Returns a copy of the array of floats used by this gradient to calculate color distribution.
final AffineTransform	getTransform()	Returns a copy of the transform applied to the gradient.
final int	getTransparency()	Returns the transparency mode for this Paint object.

Methods declared in class Object

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

Modifier and Type	Method	Description
protected Object	clone()	Creates and returns a copy of this object.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
final Class<?>	getClass()	Returns the runtime class of this Object.
int	hashCode()	Returns a hash code value for this object.
final void	notify()	Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll()	Wakes up all threads that are waiting on this object's monitor.
String	toString()	Returns a string representation of the object.
final void	wait()	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
final void	wait(long timeoutMillis)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
final void	wait(long timeoutMillis, int nanos)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Methods declared in interface Paint

createContext

Modifier and Type	Method	Description
PaintContext	createContext(ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds, AffineTransform xform, RenderingHints hints)	Creates and returns a PaintContext used to generate the color pattern.

Method Details

getFractions

public final float[] getFractions()

Returns a copy of the array of floats used by this gradient to calculate color distribution. The returned array always has 0 as its first value and 1 as its last value, with increasing values in between.

Returns:

a copy of the array of floats used by this gradient to calculate color distribution

getColors

public final Color[] getColors()

Returns a copy of the array of colors used by this gradient. The first color maps to the first value in the fractions array, and the last color maps to the last value in the fractions array.

Returns:

a copy of the array of colors used by this gradient

getCycleMethod

public final MultipleGradientPaint.CycleMethod getCycleMethod()

Returns the enumerated type which specifies cycling behavior.

Returns:

the enumerated type which specifies cycling behavior

getColorSpace

public final MultipleGradientPaint.ColorSpaceType getColorSpace()

Returns the enumerated type which specifies color space for interpolation.

Returns:

the enumerated type which specifies color space for interpolation

getTransform

public final AffineTransform getTransform()

Returns a copy of the transform applied to the gradient.

Note that if no transform is applied to the gradient when it is created, the identity transform is used.

Returns:

a copy of the transform applied to the gradient

getTransparency

public final int getTransparency()

Returns the transparency mode for this Paint object.

Specified by:

getTransparency in interface Transparency

Returns:

OPAQUE if all colors used by this Paint object are opaque, TRANSLUCENT if at least one of the colors used by this Paint object is not opaque.

See Also:

• Transparency