com.sun.media.imageioimpl.plugins.jpeg2000

Class ResolutionBox

java.lang.Object

com.sun.media.imageioimpl.plugins.jpeg2000.Box

com.sun.media.imageioimpl.plugins.jpeg2000.ResolutionBox

public class ResolutionBox
extends Box

This class is defined to represent a Resolution Box of JPEG JP2 file format. A Data Entry URL Box has a length, and a fixed type of "resc" (capture resolution) or "resd" (default display resolution). Its contens includes the resolution numerators, denominator, and the exponents for both horizontal and vertical directions.

Field Summary

Fields

Modifier and Type	Field and Description
private short	denomH
private short	denomV
private byte	expH
private byte	expV
private float	hRes The cached horizontal/vertical resolutions.
private short	numH
private short	numV The data elements in this box.
private float	vRes

Fields inherited from class com.sun.media.imageioimpl.plugins.jpeg2000.Box

data, extraLength, length, type

Constructor Summary

Constructors

Constructor and Description
ResolutionBox(int type, byte[] data) Constructs a ResolutionBox from the provided type and content data array.
ResolutionBox(int type, float hRes, float vRes) Constructs a ResolutionBox from the provided type and horizontal/vertical resolutions.
ResolutionBox(Node node) Constructs a ResolutionBox based on the provided org.w3c.dom.Node.

Method Summary

Modifier and Type	Method and Description
protected void	compose() Composes the content byte array from the data elements.
float	getHorizontalResolution() Return the horizontal resolution.
IIOMetadataNode	getNativeNode() Creates an IIOMetadataNode from this resolution box.
float	getVerticalResolution() Return the vertical resolution.
protected void	parse(byte[] data) Parse the data elements from the provided content data array.

Methods inherited from class com.sun.media.imageioimpl.plugins.jpeg2000.Box

copyInt, createBox, getAttribute, getBoxClass, getByteArrayElementValue, getByteElementValue, getContent, getExtraLength, getIntArrayElementValue, getIntElementValue, getLength, getName, getNativeNodeForSimpleBox, getShortElementValue, getStringElementValue, getType, getTypeByName, getTypeInt, getTypeString, parseByteArray, parseIntArray, read, setContent, setDefaultAttributes, setExtraLength, setLength, write

Methods inherited from class java.lang.Object

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

Field Detail

numV

private short numV

The data elements in this box.

numH

private short numH

denomV

private short denomV

denomH

private short denomH

expV

private byte expV

expH

private byte expH

hRes

private float hRes

The cached horizontal/vertical resolutions.

vRes

private float vRes

Constructor Detail

ResolutionBox

public ResolutionBox(int type,
                     byte[] data)

Constructs a ResolutionBox from the provided type and content data array.

ResolutionBox

public ResolutionBox(int type,
                     float hRes,
                     float vRes)

Constructs a ResolutionBox from the provided type and horizontal/vertical resolutions.

ResolutionBox

public ResolutionBox(Node node)
              throws IIOInvalidTreeException

Constructs a ResolutionBox based on the provided org.w3c.dom.Node.

Throws:

IIOInvalidTreeException

Method Detail

getHorizontalResolution

public float getHorizontalResolution()

Return the horizontal resolution.

getVerticalResolution

public float getVerticalResolution()

Return the vertical resolution.

parse

protected void parse(byte[] data)

Parse the data elements from the provided content data array.

Overrides:

parse in class Box

getNativeNode

public IIOMetadataNode getNativeNode()

Creates an IIOMetadataNode from this resolution box. The format of this node is defined in the XML dtd and xsd for the JP2 image file.

Overrides:

getNativeNode in class Box

compose

protected void compose()

Description copied from class: Box

Composes the content byte array from the data elements.

Overrides:

compose in class Box