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java.lang.Objectjava.awt.GradientPaint
public class GradientPaint
A paint object that can be used to color a region by blending two colors. Instances of this class are immutable.
Field Summary |
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Fields inherited from interface java.awt.Transparency |
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BITMASK, OPAQUE, TRANSLUCENT |
Constructor Summary | |
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GradientPaint(float x1,
float y1,
Color c1,
float x2,
float y2,
Color c2)
Creates a new acyclic GradientPaint . |
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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(Point2D p1,
Color c1,
Point2D p2,
Color c2)
Creates a new acyclic GradientPaint . |
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GradientPaint(Point2D p1,
Color c1,
Point2D p2,
Color c2,
boolean cyclic)
Creates a new cyclic or acyclic GradientPaint . |
Method Summary | |
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PaintContext |
createContext(ColorModel cm,
Rectangle deviceBounds,
Rectangle2D userBounds,
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. |
Point2D |
getPoint1()
Returns a point with the same coordinates as the anchor point for color 1. |
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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public GradientPaint(float x1, float y1, Color c1, float x2, float y2, Color c2)
GradientPaint
.
x1
- the x-coordinate of the anchor point for color 1.y1
- the y-coordinate of the anchor point for color 1.c1
- color 1 (null
not permitted).x2
- the x-coordinate of the anchor point for color 2.y2
- the y-coordinate of the anchor point for color 2.c2
- the second color (null
not permitted).public GradientPaint(Point2D p1, Color c1, Point2D p2, Color c2)
GradientPaint
.
p1
- anchor point 1 (null
not permitted).c1
- color 1 (null
not permitted).p2
- anchor point 2 (null
not permitted).c2
- color 2 (null
not permitted).public GradientPaint(float x1, float y1, Color c1, float x2, float y2, Color c2, boolean cyclic)
GradientPaint
.
x1
- the x-coordinate of the anchor point for color 1.y1
- the y-coordinate of the anchor point for color 1.c1
- color 1 (null
not permitted).x2
- the x-coordinate of the anchor point for color 2.y2
- the y-coordinate of the anchor point for color 2.c2
- the second color (null
not permitted).cyclic
- a flag that controls whether the gradient is cyclic or
acyclic.public GradientPaint(Point2D p1, Color c1, Point2D p2, Color c2, boolean cyclic)
GradientPaint
.
p1
- anchor point 1 (null
not permitted).c1
- color 1 (null
not permitted).p2
- anchor point 2 (null
not permitted).c2
- color 2 (null
not permitted).cyclic
- a flag that controls whether the gradient is cyclic or
acyclic.Method Detail |
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public Point2D getPoint1()
GradientPaint
remains
unchanged.
public Color getColor1()
null
).public Point2D getPoint2()
GradientPaint
remains
unchanged.
public Color getColor2()
null
).public boolean isCyclic()
true
if this GradientPaint
instance is
cyclic, and false
otherwise.
public PaintContext createContext(ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds, AffineTransform xform, RenderingHints hints)
PaintContext
used to generate the color pattern.
createContext
in interface Paint
cm
- the color model, used as a hint (ignored in this
implementation).deviceBounds
- the device space bounding box of the painted area.userBounds
- the user space bounding box of the painted area.xform
- the transformation from user space to device space.hints
- any hints for choosing between rendering alternatives.
public int getTransparency()
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
, otherwise it returns
Transparency.TRANSLUCENT
.
getTransparency
in interface Transparency
Transparency.OPAQUE
or Transparency.TRANSLUCENT
.
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