com.reportmill.graphics

Class RMImageReader

java.lang.Object

com.reportmill.graphics.RMImageReader

All Implemented Interfaces:

RMImageData.ImageReader

public class RMImageReader
extends java.lang.Object
implements RMImageData.ImageReader

Uses ImageIO or JAI to read an image, its basic info and its decoded bytes. The reader tries to provide basic info without loading the entire image file into memory. Decoded bytes are only needed by things like PDF and Flash writers.

Constructor Summary

Constructors

Constructor and Description
RMImageReader(RMImageData anImageData) Creates a new image reader for given image data.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	canRead(byte[] bytes) Returns whether image reader can read the file provided in the byte array.
static boolean	canRead(java.lang.String anExt) Returns whether image reader can read files with given extension.
RMImageData	getImageData() Returns the image data.
static java.lang.String	getType(byte[] bytes) Returns the type of the image bytes provided.
void	readBasicInfo(RMImageData anImageData) Reads basic image info.
void	readBasicInfoJPG() Reads basic image info specifically optimized for JPEG images (without having to create Java RenderedImage).
void	readBytesDecoded() Loads and sets the decoded bytes for the image data.
java.awt.image.BufferedImage	readImage(RMImageData anImageData) Reads the buffered image.

Methods inherited from class java.lang.Object

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

Constructor Detail

RMImageReader

public RMImageReader(RMImageData anImageData)

Creates a new image reader for given image data.

Method Detail

canRead

public static boolean canRead(java.lang.String anExt)

Returns whether image reader can read files with given extension.

canRead

public static boolean canRead(byte[] bytes)

Returns whether image reader can read the file provided in the byte array.

getType

public static java.lang.String getType(byte[] bytes)

Returns the type of the image bytes provided.

getImageData

public RMImageData getImageData()

Returns the image data.

readBasicInfo

public void readBasicInfo(RMImageData anImageData)

Reads basic image info.

Specified by:

readBasicInfo in interface RMImageData.ImageReader

readBasicInfoJPG

public void readBasicInfoJPG()

Reads basic image info specifically optimized for JPEG images (without having to create Java RenderedImage).

readImage

public java.awt.image.BufferedImage readImage(RMImageData anImageData)

Reads the buffered image.

Specified by:

readImage in interface RMImageData.ImageReader

readBytesDecoded

public void readBytesDecoded()

Loads and sets the decoded bytes for the image data.

Specified by:

readBytesDecoded in interface RMImageData.ImageReader