java.lang.Object
org.jfree.chart.encoders.SunPNGEncoderAdapter
- All Implemented Interfaces:
ImageEncoder
Adapter class for the Sun PNG Encoder. The ImageEncoderFactory will only
return a reference to this class by default if the library has been compiled
under a JDK 1.4+ and is being run using a JDK 1.4+.
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionbyte[]
encode
(BufferedImage bufferedImage) Encodes an image in PNG format.void
encode
(BufferedImage bufferedImage, OutputStream outputStream) Encodes an image in PNG format and writes it to an OutputStream.float
Get the quality of the image encoding (always 0.0).boolean
Get whether the encoder should encode alpha transparency (always false).void
setEncodingAlpha
(boolean encodingAlpha) Set whether the encoder should encode alpha transparency (not supported in this ImageEncoder).void
setQuality
(float quality) Set the quality of the image encoding (not supported in this ImageEncoder).
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Constructor Details
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SunPNGEncoderAdapter
public SunPNGEncoderAdapter()
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Method Details
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getQuality
public float getQuality()Get the quality of the image encoding (always 0.0).- Specified by:
getQuality
in interfaceImageEncoder
- Returns:
- A float representing the quality.
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setQuality
public void setQuality(float quality) Set the quality of the image encoding (not supported in this ImageEncoder).- Specified by:
setQuality
in interfaceImageEncoder
- Parameters:
quality
- A float representing the quality.
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isEncodingAlpha
public boolean isEncodingAlpha()Get whether the encoder should encode alpha transparency (always false).- Specified by:
isEncodingAlpha
in interfaceImageEncoder
- Returns:
- Whether the encoder is encoding alpha transparency.
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setEncodingAlpha
public void setEncodingAlpha(boolean encodingAlpha) Set whether the encoder should encode alpha transparency (not supported in this ImageEncoder).- Specified by:
setEncodingAlpha
in interfaceImageEncoder
- Parameters:
encodingAlpha
- Whether the encoder should encode alpha transparency.
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encode
Encodes an image in PNG format.- Specified by:
encode
in interfaceImageEncoder
- Parameters:
bufferedImage
- The image to be encoded.- Returns:
- The byte[] that is the encoded image.
- Throws:
IOException
- if there is an IO problem.
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encode
Encodes an image in PNG format and writes it to an OutputStream.- Specified by:
encode
in interfaceImageEncoder
- Parameters:
bufferedImage
- The image to be encoded.outputStream
- The OutputStream to write the encoded image to.- Throws:
IOException
- if there is an IO problem.
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