Package org.jfree.chart.util
Class DefaultShadowGenerator
- java.lang.Object
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- org.jfree.chart.util.DefaultShadowGenerator
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- All Implemented Interfaces:
java.io.Serializable
,ShadowGenerator
public class DefaultShadowGenerator extends java.lang.Object implements ShadowGenerator, java.io.Serializable
A default implementation of theShadowGenerator
interface, based on code in a blog post by Romain Guy.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description private double
angle
The shadow offset angle (in radians).private int
distance
The shadow offset distance (in Java2D units).private static long
serialVersionUID
private java.awt.Color
shadowColor
The shadow color.private float
shadowOpacity
The shadow opacity.private int
shadowSize
The shadow size.
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Constructor Summary
Constructors Constructor Description DefaultShadowGenerator()
Creates a new instance with default attributes.DefaultShadowGenerator(int size, java.awt.Color color, float opacity, int distance, double angle)
Creates a new instance with the specified attributes.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
applyShadow(java.awt.image.BufferedImage image)
Applies a shadow to the image.int
calculateOffsetX()
Calculates the x-offset for drawing the shadow image relative to the source.int
calculateOffsetY()
Calculates the y-offset for drawing the shadow image relative to the source.java.awt.image.BufferedImage
createDropShadow(java.awt.image.BufferedImage source)
Creates and returns an image containing the drop shadow for the specified source image.boolean
equals(java.lang.Object obj)
Tests this object for equality with an arbitrary object.double
getAngle()
Returns the shadow offset angle (in radians).int
getDistance()
Returns the shadow offset distance.java.awt.Color
getShadowColor()
Returns the shadow color.float
getShadowOpacity()
Returns the shadow opacity.int
getShadowSize()
Returns the shadow size.int
hashCode()
Returns a hash code for this instance.
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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shadowSize
private int shadowSize
The shadow size.
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shadowColor
private java.awt.Color shadowColor
The shadow color.
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shadowOpacity
private float shadowOpacity
The shadow opacity.
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angle
private double angle
The shadow offset angle (in radians).
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distance
private int distance
The shadow offset distance (in Java2D units).
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Constructor Detail
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DefaultShadowGenerator
public DefaultShadowGenerator()
Creates a new instance with default attributes.
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DefaultShadowGenerator
public DefaultShadowGenerator(int size, java.awt.Color color, float opacity, int distance, double angle)
Creates a new instance with the specified attributes.- Parameters:
size
- the shadow size.color
- the shadow color.opacity
- the shadow opacity.distance
- the shadow offset distance.angle
- the shadow offset angle (in radians).
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Method Detail
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getShadowSize
public int getShadowSize()
Returns the shadow size.- Returns:
- The shadow size.
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getShadowColor
public java.awt.Color getShadowColor()
Returns the shadow color.- Returns:
- The shadow color (never
null
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getShadowOpacity
public float getShadowOpacity()
Returns the shadow opacity.- Returns:
- The shadow opacity.
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getDistance
public int getDistance()
Returns the shadow offset distance.- Returns:
- The shadow offset distance (in Java2D units).
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getAngle
public double getAngle()
Returns the shadow offset angle (in radians).- Returns:
- The angle (in radians).
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calculateOffsetX
public int calculateOffsetX()
Calculates the x-offset for drawing the shadow image relative to the source.- Specified by:
calculateOffsetX
in interfaceShadowGenerator
- Returns:
- The x-offset.
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calculateOffsetY
public int calculateOffsetY()
Calculates the y-offset for drawing the shadow image relative to the source.- Specified by:
calculateOffsetY
in interfaceShadowGenerator
- Returns:
- The y-offset.
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createDropShadow
public java.awt.image.BufferedImage createDropShadow(java.awt.image.BufferedImage source)
Creates and returns an image containing the drop shadow for the specified source image.- Specified by:
createDropShadow
in interfaceShadowGenerator
- Parameters:
source
- the source image.- Returns:
- A new image containing the shadow.
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applyShadow
protected void applyShadow(java.awt.image.BufferedImage image)
Applies a shadow to the image.- Parameters:
image
- the image.
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equals
public boolean equals(java.lang.Object obj)
Tests this object for equality with an arbitrary object.- Overrides:
equals
in classjava.lang.Object
- Parameters:
obj
- the object (null
permitted).- Returns:
- The object.
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hashCode
public int hashCode()
Returns a hash code for this instance.- Overrides:
hashCode
in classjava.lang.Object
- Returns:
- The hash code.
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