Package org.loboevolution.pdfview.colorspace

Class IndexedColor

java.lang.Object

org.loboevolution.pdfview.colorspace.PDFColorSpace

org.loboevolution.pdfview.colorspace.IndexedColor

public class IndexedColor
extends PDFColorSpace

A PDFColorSpace for an IndexedColor model

Author Mike Wessler

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	colorComponents	r,g,and b components of the color table as a single array, for Java's IndexColorModel

Fields inherited from class org.loboevolution.pdfview.colorspace.PDFColorSpace

COLORSPACE_CMYK, COLORSPACE_GRAY, COLORSPACE_PATTERN, COLORSPACE_RGB

Constructor Summary

Constructors

Constructor	Description
IndexedColor(Color[] table)	create a new IndexColor PDFColorSpace based on a table of colors.
IndexedColor(PDFColorSpace base, int cnt, PDFObject stream)	create a new IndexColor PDFColorSpace based on another PDFColorSpace, a count of colors, and a stream of values.

Method Summary

Modifier and Type	Method	Description
int	getNumComponents()	get the number of components expected in the getPaint command
PDFPaint	getPaint(float[] components)	get the PDFPaint representing the color described by the given color components

Methods inherited from class org.loboevolution.pdfview.colorspace.PDFColorSpace

getColorSpace, getColorSpace, getColorSpace

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

colorComponents

protected byte[] colorComponents

r,g,and b components of the color table as a single array, for Java's IndexColorModel

Constructor Details

IndexedColor

public IndexedColor(PDFColorSpace base,
 int cnt,
 PDFObject stream)
             throws IOException

create a new IndexColor PDFColorSpace based on another PDFColorSpace, a count of colors, and a stream of values. Every consecutive n bytes of the stream is interpreted as a color in the base ColorSpace, where n is the number of components in that color space.

Parameters:

base - the color space in which the data is interpreted

cnt - the number of colors in the table

stream - a stream of bytes. The number of bytes must be count*n, where n is the number of components in the base colorspace.

Throws:

IOException - if any.

IndexedColor

public IndexedColor(Color[] table)
             throws IOException

create a new IndexColor PDFColorSpace based on a table of colors.

Parameters:

table - an array of colors

Throws:

IOException - if any.

Method Details

getNumComponents

public int getNumComponents()

get the number of components expected in the getPaint command

get the number of components of this colorspace (1)

Overrides:

getNumComponents in class PDFColorSpace

Returns:

a Integer object.

getPaint

public PDFPaint getPaint(float[] components)

get the PDFPaint representing the color described by the given color components

get the color represented by the index.

Overrides:

getPaint in class PDFColorSpace

Parameters:

components - the color components corresponding to the given colorspace

Returns:

a PDFPaint object representing the closest Color to the given components.