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java.awt
Class GradientPaint  

java.lang.Object
  java.awt.GradientPaint

All Implemented Interfaces:

Paint, Transparency

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public class GradientPaint

extends java.lang.Object

implements Paint

A paint object that can be used to color a region by blending two colors. Instances of this class are immutable.

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Field Summary
private  Color	c1
private  Color	c2
private  boolean	cyclic
private  float	x1
private  float	x2
private  float	y1
private  float	y2

 

Fields inherited from interface java.awt.Transparency

BITMASK, OPAQUE, TRANSLUCENT

 

Constructor Summary

GradientPaint(float x1, float y1, Color c1, float x2, float y2, Color c2)           Creates a new acyclic GradientPaint.

GradientPaint(float x1, float y1, Color c1, float x2, float y2, Color c2, boolean cyclic)           Creates a new cyclic or acyclic GradientPaint.

GradientPaint(java.awt.geom.Point2D p1, Color c1, java.awt.geom.Point2D p2, Color c2)           Creates a new acyclic GradientPaint.

GradientPaint(java.awt.geom.Point2D p1, Color c1, java.awt.geom.Point2D p2, Color c2, boolean cyclic)           Creates a new cyclic or acyclic GradientPaint.

 

Method Summary
PaintContext	createContext(java.awt.image.ColorModel cm, Rectangle deviceBounds, java.awt.geom.Rectangle2D userBounds, java.awt.geom.AffineTransform xform, RenderingHints hints)           Returns the PaintContext used to generate the color pattern.
Color	getColor1()           Returns the first color.
Color	getColor2()           Returns the second color.
java.awt.geom.Point2D	getPoint1()           Returns a point with the same coordinates as the anchor point for color 1.
java.awt.geom.Point2D	getPoint2()           Returns a point with the same coordinates as the anchor point for color 2.
int	getTransparency()           Returns the transparency code for this GradientPaint instance.
boolean	isCyclic()           Returns true if this GradientPaint instance is cyclic, and false otherwise.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

x1

private final float x1

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y1

private final float y1

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c1

private final Color c1

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x2

private final float x2

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y2

private final float y2

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c2

private final Color c2

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cyclic

private final boolean cyclic

Constructor Detail

GradientPaint

public GradientPaint(float x1,
                     float y1,
                     Color c1,
                     float x2,
                     float y2,
                     Color c2)

Creates a new acyclic GradientPaint.

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GradientPaint

public GradientPaint(java.awt.geom.Point2D p1,
                     Color c1,
                     java.awt.geom.Point2D p2,
                     Color c2)

Creates a new acyclic GradientPaint.

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GradientPaint

public GradientPaint(float x1,
                     float y1,
                     Color c1,
                     float x2,
                     float y2,
                     Color c2,
                     boolean cyclic)

Creates a new cyclic or acyclic GradientPaint.

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GradientPaint

public GradientPaint(java.awt.geom.Point2D p1,
                     Color c1,
                     java.awt.geom.Point2D p2,
                     Color c2,
                     boolean cyclic)

Creates a new cyclic or acyclic GradientPaint.

Method Detail

getPoint1

public java.awt.geom.Point2D getPoint1()

Returns a point with the same coordinates as the anchor point for color 1. Note that if you modify this point, the GradientPaint remains unchanged.

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getColor1

public Color getColor1()

Returns the first color.

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getPoint2

public java.awt.geom.Point2D getPoint2()

Returns a point with the same coordinates as the anchor point for color 2. Note that if you modify this point, the GradientPaint remains unchanged.

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getColor2

public Color getColor2()

Returns the second color.

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isCyclic

public boolean isCyclic()

Returns true if this GradientPaint instance is cyclic, and false otherwise.

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createContext

public PaintContext createContext(java.awt.image.ColorModel cm,
                                  Rectangle deviceBounds,
                                  java.awt.geom.Rectangle2D userBounds,
                                  java.awt.geom.AffineTransform xform,
                                  RenderingHints hints)

Returns the PaintContext used to generate the color pattern.

Specified by:

createContext in interface Paint

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getTransparency

public int getTransparency()

Returns the transparency code for this GradientPaint instance. This is derived from the two Color objects used in creating this object: if both colors are opaque, this method returns Transparency.OPAQUE 55 , otherwise it returns Transparency.TRANSLUCENT 55 .

Specified by:

getTransparency in interface Transparency

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