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