org.sejda.sambox.pdmodel.graphics.color

Class PDPattern

java.lang.Object

org.sejda.sambox.pdmodel.graphics.color.PDColorSpace

org.sejda.sambox.pdmodel.graphics.color.PDSpecialColorSpace

org.sejda.sambox.pdmodel.graphics.color.PDPattern

All Implemented Interfaces:

COSObjectable

public final class PDPattern
extends PDSpecialColorSpace

A Pattern color space is either a Tiling pattern or a Shading pattern.

Author:

John Hewson, Ben Litchfield

Field Summary

Fields inherited from class org.sejda.sambox.pdmodel.graphics.color.PDColorSpace

array

Constructor Summary

Constructors

Constructor and Description
PDPattern(PDResources resources) Creates a new pattern color space.
PDPattern(PDResources resources, PDColorSpace colorSpace) Creates a new uncolored tiling pattern color space.

Method Summary

Modifier and Type	Method and Description
float[]	getDefaultDecode(int bitsPerComponent) Returns the default decode array for this color space.
PDColor	getInitialColor() Returns the initial color value for this color space.
String	getName() Returns the name of the color space.
int	getNumberOfComponents() Returns the number of components in this color space
PDAbstractPattern	getPattern(PDColor color) Returns the pattern for the given color.
PDColorSpace	getUnderlyingColorSpace() Returns the underlying color space, if this is an uncolored tiling pattern, otherwise null.
float[]	toRGB(float[] value) Returns the RGB equivalent of the given color value.
BufferedImage	toRGBImage(WritableRaster raster) Returns the (A)RGB equivalent of the given raster.
String	toString()

Methods inherited from class org.sejda.sambox.pdmodel.graphics.color.PDSpecialColorSpace

getCOSObject

Methods inherited from class org.sejda.sambox.pdmodel.graphics.color.PDColorSpace

create, create, create, isAllowedCache, toRGBImageAWT

Methods inherited from class java.lang.Object

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

Constructor Detail

PDPattern

public PDPattern(PDResources resources)

Creates a new pattern color space.

Parameters:

resources - The current resources.

PDPattern

public PDPattern(PDResources resources,
                 PDColorSpace colorSpace)

Creates a new uncolored tiling pattern color space.

Parameters:

resources - The current resources.

colorSpace - The underlying color space.

Method Detail

getName

public String getName()

Description copied from class: PDColorSpace

Returns the name of the color space.

Specified by:

getName in class PDColorSpace

Returns:

the name of the color space

getNumberOfComponents

public int getNumberOfComponents()

Description copied from class: PDColorSpace

Returns the number of components in this color space

Specified by:

getNumberOfComponents in class PDColorSpace

Returns:

the number of components in this color space

getDefaultDecode

public float[] getDefaultDecode(int bitsPerComponent)

Description copied from class: PDColorSpace

Returns the default decode array for this color space.

Specified by:

getDefaultDecode in class PDColorSpace

Parameters:

bitsPerComponent - the number of bits per component.

Returns:

the default decode array

getInitialColor

public PDColor getInitialColor()

Description copied from class: PDColorSpace

Returns the initial color value for this color space.

Specified by:

getInitialColor in class PDColorSpace

Returns:

the initial color value for this color space

toRGB

public float[] toRGB(float[] value)

Description copied from class: PDColorSpace

Returns the RGB equivalent of the given color value.

Specified by:

toRGB in class PDColorSpace

Parameters:

value - a color value with component values between 0 and 1

Returns:

an array of R,G,B value between 0 and 255

toRGBImage

public BufferedImage toRGBImage(WritableRaster raster)
                         throws IOException

Description copied from class: PDColorSpace

Returns the (A)RGB equivalent of the given raster.

Specified by:

toRGBImage in class PDColorSpace

Parameters:

raster - the source raster

Returns:

an (A)RGB buffered image

Throws:

IOException - if the color conversion fails

getPattern

public PDAbstractPattern getPattern(PDColor color)
                             throws IOException

Returns the pattern for the given color.

Parameters:

color - color containing a pattern name

Returns:

pattern for the given color

Throws:

IOException - if the pattern name was not found.

getUnderlyingColorSpace

public PDColorSpace getUnderlyingColorSpace()

Returns the underlying color space, if this is an uncolored tiling pattern, otherwise null.

toString

public String toString()

Overrides:

toString in class Object