com.itextpdf.io.image

Class ImageDataFactory

java.lang.Object

com.itextpdf.io.image.ImageDataFactory

public final class ImageDataFactory
extends Object

Method Summary

Modifier and Type	Method and Description
static ImageData	create(byte[] bytes) Create an ImageData instance representing the image from the image bytes.
static ImageData	create(byte[] bytes, boolean recoverImage) Create an ImageData instance representing the image from the image bytes.
static ImageData	create(Image image, Color color) Gets an instance of an Image from a java.awt.Image
static ImageData	create(Image image, Color color, boolean forceBW) Gets an instance of an Image from a java.awt.Image.
static ImageData	create(int width, int height, boolean reverseBits, int typeCCITT, int parameters, byte[] data, int[] transparency) Create an ImageData instance from the passed parameters.
static ImageData	create(int width, int height, int components, int bpc, byte[] data, int[] transparency) Create an ImageData instance from the passed parameters.
static ImageData	create(String filename) Create an ImageData instance representing the image from the specified file.
static ImageData	create(String filename, boolean recoverImage) Create an ImageData instance representing the image from the specified file.
static ImageData	create(URL url) Create an ImageData instance representing the image from the file located at the specified url.
static ImageData	create(URL url, boolean recoverImage) Create an ImageData instance representing the image from the file located at the specified url.
static ImageData	createBmp(byte[] bytes, boolean noHeader) Get a bitmap ImageData instance from the provided bytes.
static ImageData	createBmp(URL url, boolean noHeader) Get a bitmap ImageData instance from the specified url.
static GifImageData	createGif(byte[] bytes) Return a GifImage object.
static ImageData	createGifFrame(byte[] bytes, int frame) Returns a specified frame of the gif image
static ImageData	createGifFrame(URL url, int frame) Returns a specified frame of the gif image
static List<ImageData>	createGifFrames(byte[] bytes) Returns List of gif image frames
static List<ImageData>	createGifFrames(byte[] bytes, int[] frameNumbers) Returns List of gif image frames
static List<ImageData>	createGifFrames(URL url) Returns List of gif image frames
static List<ImageData>	createGifFrames(URL url, int[] frameNumbers) Returns List of gif image frames
static ImageData	createJbig2(byte[] bytes, int page)
static ImageData	createJbig2(URL url, int page)
static ImageData	createJpeg(byte[] bytes)
static ImageData	createJpeg(URL url) Create an ImageData instance from a Jpeg image url
static ImageData	createJpeg2000(byte[] bytes)
static ImageData	createJpeg2000(URL url)
static ImageData	createPng(byte[] bytes)
static ImageData	createPng(URL url)
static ImageData	createRawImage(byte[] bytes)
static ImageData	createTiff(byte[] bytes, boolean recoverFromImageError, int page, boolean direct)
static ImageData	createTiff(URL url, boolean recoverFromImageError, int page, boolean direct)
static boolean	isSupportedType(byte[] source) Checks if the type of image (based on first 8 bytes) is supported by factory.
static boolean	isSupportedType(ImageType imageType) Checks if the type of image is supported by factory.
static boolean	isSupportedType(URL source) Checks if the type of image (based on first 8 bytes) is supported by factory.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static ImageData create(byte[] bytes,
                               boolean recoverImage)

Create an ImageData instance representing the image from the image bytes.

Parameters:

bytes - byte representation of the image.

recoverImage - whether to recover from a image error (for TIFF-images)

Returns:

The created ImageData object.

create

public static ImageData create(byte[] bytes)

Create an ImageData instance representing the image from the image bytes.

Parameters:

bytes - byte representation of the image.

Returns:

The created ImageData object.

create

public static ImageData create(URL url,
                               boolean recoverImage)

Create an ImageData instance representing the image from the file located at the specified url.

Parameters:

url - location of the image

recoverImage - whether to recover from a image error (for TIFF-images)

Returns:

The created ImageData object.

create

public static ImageData create(URL url)

Create an ImageData instance representing the image from the file located at the specified url.

Parameters:

url - location of the image

Returns:

The created ImageData object.

create

public static ImageData create(String filename,
                               boolean recoverImage)
                        throws MalformedURLException

Create an ImageData instance representing the image from the specified file.

Parameters:

filename - filename of the file containing the image

recoverImage - whether to recover from a image error (for TIFF-images)

Returns:

The created ImageData object.

Throws:

MalformedURLException - if an error occurred generating the URL.

create

public static ImageData create(String filename)
                        throws MalformedURLException

Create an ImageData instance representing the image from the specified file.

Parameters:

filename - filename of the file containing the image

Returns:

The created ImageData object.

Throws:

MalformedURLException - if an error occurred generating the URL.

create

public static ImageData create(int width,
                               int height,
                               boolean reverseBits,
                               int typeCCITT,
                               int parameters,
                               byte[] data,
                               int[] transparency)

Create an ImageData instance from the passed parameters.

Parameters:

width - width of the image in pixels

height - height of the image in pixels

reverseBits - whether to reverse the bits stored in data (TIFF images).

typeCCITT - Type of CCITT encoding

parameters - colour space parameters

data - array containing raw image data

transparency - array containing transparency information

Returns:

created ImageData object.

create

public static ImageData create(int width,
                               int height,
                               int components,
                               int bpc,
                               byte[] data,
                               int[] transparency)

Create an ImageData instance from the passed parameters.

Parameters:

width - width of the image in pixels

height - height of the image in pixels

components - colour space components

bpc - bits per colour.

data - array containing raw image data

transparency - array containing transparency information

Returns:

created ImageData object.

create

public static ImageData create(Image image,
                               Color color)
                        throws IOException

Gets an instance of an Image from a java.awt.Image

Parameters:

image - the java.awt.Image to convert

color - if different from null the transparency pixels are replaced by this color

Returns:

RawImage

Throws:

IOException - if an I/O error occurs.

create

public static ImageData create(Image image,
                               Color color,
                               boolean forceBW)
                        throws IOException

Gets an instance of an Image from a java.awt.Image.

Parameters:

image - the java.awt.Image to convert

color - if different from null the transparency pixels are replaced by this color

forceBW - if true the image is treated as black and white

Returns:

RawImage

Throws:

IOException - if an I/O error occurs.

createBmp

public static ImageData createBmp(URL url,
                                  boolean noHeader)

Get a bitmap ImageData instance from the specified url.

Parameters:

url - location of the image.

noHeader - Whether the image contains a header.

Returns:

created ImageData

createBmp

public static ImageData createBmp(byte[] bytes,
                                  boolean noHeader)

Get a bitmap ImageData instance from the provided bytes.

Parameters:

bytes - array containing the raw image data

noHeader - Whether the image contains a header.

Returns:

created ImageData

createGif

public static GifImageData createGif(byte[] bytes)

Return a GifImage object. This object cannot be added to a document

Parameters:

bytes - array containing the raw image data

Returns:

GifImageData instance.

createGifFrame

public static ImageData createGifFrame(URL url,
                                       int frame)

Returns a specified frame of the gif image

Parameters:

url - url of gif image

frame - number of frame to be returned, 1-based

Returns:

GifImageData instance.

createGifFrame

public static ImageData createGifFrame(byte[] bytes,
                                       int frame)

Returns a specified frame of the gif image

Parameters:

bytes - byte array of gif image

frame - number of frame to be returned, 1-based

Returns:

GifImageData instance

createGifFrames

public static List<ImageData> createGifFrames(byte[] bytes,
                                              int[] frameNumbers)

Returns List of gif image frames

Parameters:

bytes - byte array of gif image

frameNumbers - array of frame numbers of gif image, 1-based

Returns:

all frames of gif image

createGifFrames

public static List<ImageData> createGifFrames(URL url,
                                              int[] frameNumbers)

Returns List of gif image frames

Parameters:

url - url of gif image

frameNumbers - array of frame numbers of gif image, 1-based

Returns:

all frames of gif image

createGifFrames

public static List<ImageData> createGifFrames(byte[] bytes)

Returns List of gif image frames

Parameters:

bytes - byte array of gif image

Returns:

all frames of gif image

createGifFrames

public static List<ImageData> createGifFrames(URL url)

Returns List of gif image frames

Parameters:

url - url of gif image

Returns:

all frames of gif image

createJbig2

public static ImageData createJbig2(URL url,
                                    int page)

createJbig2

public static ImageData createJbig2(byte[] bytes,
                                    int page)

createJpeg

public static ImageData createJpeg(URL url)

Create an ImageData instance from a Jpeg image url

Parameters:

url - URL

Returns:

the created JPEG image

createJpeg

public static ImageData createJpeg(byte[] bytes)

createJpeg2000

public static ImageData createJpeg2000(URL url)

createJpeg2000

public static ImageData createJpeg2000(byte[] bytes)

createPng

public static ImageData createPng(URL url)

createPng

public static ImageData createPng(byte[] bytes)

createTiff

public static ImageData createTiff(URL url,
                                   boolean recoverFromImageError,
                                   int page,
                                   boolean direct)

createTiff

public static ImageData createTiff(byte[] bytes,
                                   boolean recoverFromImageError,
                                   int page,
                                   boolean direct)

createRawImage

public static ImageData createRawImage(byte[] bytes)

isSupportedType

public static boolean isSupportedType(byte[] source)

Checks if the type of image (based on first 8 bytes) is supported by factory.
Note: if this method returns true it doesn't means that create(byte[]) won't throw exception

Parameters:

source - image raw bytes

Returns:

true if first eight bytes are recognised by factory as valid image type and false otherwise

isSupportedType

public static boolean isSupportedType(URL source)

Checks if the type of image (based on first 8 bytes) is supported by factory.
Note: if this method returns true it doesn't means that create(byte[]) won't throw exception

Parameters:

source - image URL

Returns:

true if first eight bytes are recognised by factory as valid image type and false otherwise

isSupportedType

public static boolean isSupportedType(ImageType imageType)

Checks if the type of image is supported by factory.
Note: if this method returns true it doesn't means that create(byte[]) won't throw exception

Parameters:

imageType - image type

Returns:

true if image type is supported and false otherwise