org.eclipse.swt.internal.image

Class FileFormat

java.lang.Object

org.eclipse.swt.internal.image.FileFormat

Direct Known Subclasses:

GIFFileFormat, JPEGFileFormat, OS2BMPFileFormat, PNGFileFormat, TIFFFileFormat, WinBMPFileFormat, WinICOFileFormat

public abstract class FileFormat
extends java.lang.Object

Abstract factory class for loading/unloading images from files or streams in various image file formats.

Structure Diagram

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	compression
(package private) static java.lang.String	FORMAT_PACKAGE
(package private) static java.lang.String	FORMAT_SUFFIX
(package private) static java.lang.String[]	FORMATS
(package private) LEDataInputStream	inputStream
(package private) ImageLoader	loader
(package private) LEDataOutputStream	outputStream

Constructor Summary

Constructors

Constructor and Description
FileFormat()

Method Summary

Methods

Modifier and Type	Method and Description
(package private) abstract boolean	isFileFormat(LEDataInputStream stream) Return whether or not the specified input stream represents a supported file format.
static ImageData[]	load(java.io.InputStream is, ImageLoader loader) Read the specified input stream using the specified loader, and return the device independent image array represented by the stream.
(package private) abstract ImageData[]	loadFromByteStream()
ImageData[]	loadFromStream(LEDataInputStream stream) Read the specified input stream, and return the device independent image array represented by the stream.
static void	save(java.io.OutputStream os, int format, ImageLoader loader) Write the device independent image array stored in the specified loader to the specified output stream using the specified file format.
(package private) abstract void	unloadIntoByteStream(ImageLoader loader)
void	unloadIntoStream(ImageLoader loader, LEDataOutputStream stream) Write the device independent image array stored in the specified loader to the specified output stream.

Methods inherited from class java.lang.Object

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

Field Detail

FORMAT_PACKAGE

static final java.lang.String FORMAT_PACKAGE

See Also:

Constant Field Values

FORMAT_SUFFIX

static final java.lang.String FORMAT_SUFFIX

See Also:

Constant Field Values

FORMATS

static final java.lang.String[] FORMATS

inputStream

LEDataInputStream inputStream

outputStream

LEDataOutputStream outputStream

loader

ImageLoader loader

compression

int compression

Constructor Detail

FileFormat

public FileFormat()

Method Detail

isFileFormat

abstract boolean isFileFormat(LEDataInputStream stream)

Return whether or not the specified input stream represents a supported file format.

loadFromByteStream

abstract ImageData[] loadFromByteStream()

loadFromStream

public ImageData[] loadFromStream(LEDataInputStream stream)

Read the specified input stream, and return the device independent image array represented by the stream.

load

public static ImageData[] load(java.io.InputStream is,
               ImageLoader loader)

Read the specified input stream using the specified loader, and return the device independent image array represented by the stream.

save

public static void save(java.io.OutputStream os,
        int format,
        ImageLoader loader)

Write the device independent image array stored in the specified loader to the specified output stream using the specified file format.

unloadIntoByteStream

abstract void unloadIntoByteStream(ImageLoader loader)

unloadIntoStream

public void unloadIntoStream(ImageLoader loader,
                    LEDataOutputStream stream)

Write the device independent image array stored in the specified loader to the specified output stream.