Java Doc for PngEncoder.java in  » Ajax » NextApp-Echo2 » nextapp » echo2 » webcontainer » image » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » NextApp Echo2 » nextapp.echo2.webcontainer.image   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    nextapp.echo2.webcontainer.image.PngEncoder PngEncoder public class PngEncoder (Code) Encodes a java.awt.Image into PNG format. For more information on the PNG specification, see the W3C PNG page at http://www.w3.org/TR/REC-png.html. Inner Class :public interface Filter Inner Class :interface Translator Field Summary final public static  Filter AVERAGE_FILTER      final public static  Filter PAETH_FILTER      final public static  Filter SUB_FILTER      final public static  Filter UP_FILTER      Constructor Summary public   PngEncoder(Image image, boolean encodeAlpha, Filter filter, int compressionLevel)      Creates a PNG encoder for an image. Parameters:   image - the image to be encoded Parameters:   encodeAlpha - true if the image's alpha channel should be encoded Parameters:   filter - The filter to be applied to the image data, one of the following values: SUB_FILTER UP_FILTER AVERAGE_FILTER PAETH_FILTER If a null value is specified, no filtering will be performed. Parameters:   compressionLevel - the deflater compression level that will be usedfor compressing the image data: Valid values range from 0 to 9.Higher values result in smaller files and therefore decreasenetwork traffic, but require more CPU time to encode. Method Summary public synchronized  void encode(OutputStream out)      Encodes the image. Field Detail AVERAGE_FILTER final public static Filter AVERAGE_FILTER(Code) PAETH_FILTER final public static Filter PAETH_FILTER(Code) SUB_FILTER final public static Filter SUB_FILTER(Code) UP_FILTER final public static Filter UP_FILTER(Code) Constructor Detail PngEncoder public PngEncoder(Image image, boolean encodeAlpha, Filter filter, int compressionLevel)(Code) Creates a PNG encoder for an image. Parameters:   image - the image to be encoded Parameters:   encodeAlpha - true if the image's alpha channel should be encoded Parameters:   filter - The filter to be applied to the image data, one of the following values: SUB_FILTER UP_FILTER AVERAGE_FILTER PAETH_FILTER If a null value is specified, no filtering will be performed. Parameters:   compressionLevel - the deflater compression level that will be usedfor compressing the image data: Valid values range from 0 to 9.Higher values result in smaller files and therefore decreasenetwork traffic, but require more CPU time to encode. The normalcompromise value is 3. Method Detail encode public synchronized void encode(OutputStream out) throws IOException(Code) Encodes the image. Parameters:   out - an OutputStream to which the encoded image will bewritten throws:   IOException - if a problem is encountered writing the output Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)