/* * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.imageio; import java.awt.image.BufferedImage;import java.awt.image.Raster;import java.awt.image.RenderedImage;import java.util.List;import javax.imageio.metadata.IIOMetadata; /** * A simple container class to aggregate an image, a set of * thumbnail (preview) images, and an object representing metadata * associated with the image. * * <p> The image data may take the form of either a * <code>RenderedImage</code>, or a <code>Raster</code>. Reader * methods that return an <code>IIOImage</code> will always return a * <code>BufferedImage</code> using the <code>RenderedImage</code> * reference. Writer methods that accept an <code>IIOImage</code> * will always accept a <code>RenderedImage</code>, and may optionally * accept a <code>Raster</code>. * * <p> Exactly one of <code>getRenderedImage</code> and * <code>getRaster</code> will return a non-<code>null</code> value. * Subclasses are responsible for ensuring this behavior. * * @see ImageReader#readAll(int, ImageReadParam) * @see ImageReader#readAll(java.util.Iterator) * @see ImageWriter#write(javax.imageio.metadata.IIOMetadata, * IIOImage, ImageWriteParam) * @see ImageWriter#write(IIOImage) * @see ImageWriter#writeToSequence(IIOImage, ImageWriteParam) * @see ImageWriter#writeInsert(int, IIOImage, ImageWriteParam) * */public class IIOImage { /** * The <code>RenderedImage</code> being referenced. */ protected RenderedImage image; /** * The <code>Raster</code> being referenced. */ protected Raster raster; /** * A <code>List</code> of <code>BufferedImage</code> thumbnails, * or <code>null</code>. Non-<code>BufferedImage</code> objects * must not be stored in this <code>List</code>. */ protected List<? extends BufferedImage> thumbnails = null; /** * An <code>IIOMetadata</code> object containing metadata * associated with the image. */ protected IIOMetadata metadata; /** * Constructs an <code>IIOImage</code> containing a * <code>RenderedImage</code>, and thumbnails and metadata * associated with it. * * <p> All parameters are stored by reference. * * <p> The <code>thumbnails</code> argument must either be * <code>null</code> or contain only <code>BufferedImage</code> * objects. * * @param image a <code>RenderedImage</code>. * @param thumbnails a <code>List</code> of <code>BufferedImage</code>s, * or <code>null</code>. * @param metadata an <code>IIOMetadata</code> object, or * <code>null</code>. * * @exception IllegalArgumentException if <code>image</code> is * <code>null</code>. */ public IIOImage(RenderedImage image, List<? extends BufferedImage> thumbnails, IIOMetadata metadata) { if (image == null) { throw new IllegalArgumentException("image == null!"); } this.image = image; this.raster = null; this.thumbnails = thumbnails; this.metadata = metadata; } /** * Constructs an <code>IIOImage</code> containing a * <code>Raster</code>, and thumbnails and metadata * associated with it. * * <p> All parameters are stored by reference. * * @param raster a <code>Raster</code>. * @param thumbnails a <code>List</code> of <code>BufferedImage</code>s, * or <code>null</code>. * @param metadata an <code>IIOMetadata</code> object, or * <code>null</code>. * * @exception IllegalArgumentException if <code>raster</code> is * <code>null</code>. */ public IIOImage(Raster raster, List<? extends BufferedImage> thumbnails, IIOMetadata metadata) { if (raster == null) { throw new IllegalArgumentException("raster == null!"); } this.raster = raster; this.image = null; this.thumbnails = thumbnails; this.metadata = metadata; } /** * Returns the currently set <code>RenderedImage</code>, or * <code>null</code> if only a <code>Raster</code> is available. * * @return a <code>RenderedImage</code>, or <code>null</code>. * * @see #setRenderedImage */ public RenderedImage getRenderedImage() { synchronized(this) { return image; } } /** * Sets the current <code>RenderedImage</code>. The value is * stored by reference. Any existing <code>Raster</code> is * discarded. * * @param image a <code>RenderedImage</code>. * * @exception IllegalArgumentException if <code>image</code> is * <code>null</code>. * * @see #getRenderedImage */ public void setRenderedImage(RenderedImage image) { synchronized(this) { if (image == null) { throw new IllegalArgumentException("image == null!"); } this.image = image; this.raster = null; } } /** * Returns <code>true</code> if this <code>IIOImage</code> stores * a <code>Raster</code> rather than a <code>RenderedImage</code>. * * @return <code>true</code> if a <code>Raster</code> is * available. */ public boolean hasRaster() { synchronized(this) { return (raster != null); } } /** * Returns the currently set <code>Raster</code>, or * <code>null</code> if only a <code>RenderedImage</code> is * available. * * @return a <code>Raster</code>, or <code>null</code>. * * @see #setRaster */ public Raster getRaster() { synchronized(this) { return raster; } } /** * Sets the current <code>Raster</code>. The value is * stored by reference. Any existing <code>RenderedImage</code> is * discarded. * * @param raster a <code>Raster</code>. * * @exception IllegalArgumentException if <code>raster</code> is * <code>null</code>. * * @see #getRaster */ public void setRaster(Raster raster) { synchronized(this) { if (raster == null) { throw new IllegalArgumentException("raster == null!"); } this.raster = raster; this.image = null; } } /** * Returns the number of thumbnails stored in this * <code>IIOImage</code>. * * @return the number of thumbnails, as an <code>int</code>. */ public int getNumThumbnails() { return thumbnails == null ? 0 : thumbnails.size(); } /** * Returns a thumbnail associated with the main image. * * @param index the index of the desired thumbnail image. * * @return a thumbnail image, as a <code>BufferedImage</code>. * * @exception IndexOutOfBoundsException if the supplied index is * negative or larger than the largest valid index. * @exception ClassCastException if a * non-<code>BufferedImage</code> object is encountered in the * list of thumbnails at the given index. * * @see #getThumbnails * @see #setThumbnails */ public BufferedImage getThumbnail(int index) { if (thumbnails == null) { throw new IndexOutOfBoundsException("No thumbnails available!"); } return (BufferedImage)thumbnails.get(index); } /** * Returns the current <code>List</code> of thumbnail * <code>BufferedImage</code>s, or <code>null</code> if none is * set. A live reference is returned. * * @return the current <code>List</code> of * <code>BufferedImage</code> thumbnails, or <code>null</code>. * * @see #getThumbnail(int) * @see #setThumbnails */ public List<? extends BufferedImage> getThumbnails() { return thumbnails; } /** * Sets the list of thumbnails to a new <code>List</code> of * <code>BufferedImage</code>s, or to <code>null</code>. The * reference to the previous <code>List</code> is discarded. * * <p> The <code>thumbnails</code> argument must either be * <code>null</code> or contain only <code>BufferedImage</code> * objects. * * @param thumbnails a <code>List</code> of * <code>BufferedImage</code> thumbnails, or <code>null</code>. * * @see #getThumbnail(int) * @see #getThumbnails */ public void setThumbnails(List<? extends BufferedImage> thumbnails) { this.thumbnails = thumbnails; } /** * Returns a reference to the current <code>IIOMetadata</code> * object, or <code>null</code> is none is set. * * @return an <code>IIOMetadata</code> object, or <code>null</code>. * * @see #setMetadata */ public IIOMetadata getMetadata() { return metadata; } /** * Sets the <code>IIOMetadata</code> to a new object, or * <code>null</code>. * * @param metadata an <code>IIOMetadata</code> object, or * <code>null</code>. * * @see #getMetadata */ public void setMetadata(IIOMetadata metadata) { this.metadata = metadata; }}
/*
* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.imageio;
import java.awt.image.BufferedImage;
import java.awt.image.Raster;
import java.awt.image.RenderedImage;
import java.util.List;
import javax.imageio.metadata.IIOMetadata;
/**
* A simple container class to aggregate an image, a set of
* thumbnail (preview) images, and an object representing metadata
* associated with the image.
*
* <p> The image data may take the form of either a
* <code>RenderedImage</code>, or a <code>Raster</code>. Reader
* methods that return an <code>IIOImage</code> will always return a
* <code>BufferedImage</code> using the <code>RenderedImage</code>
* reference. Writer methods that accept an <code>IIOImage</code>
* will always accept a <code>RenderedImage</code>, and may optionally
* accept a <code>Raster</code>.
*
* <p> Exactly one of <code>getRenderedImage</code> and
* <code>getRaster</code> will return a non-<code>null</code> value.
* Subclasses are responsible for ensuring this behavior.
*
* @see ImageReader#readAll(int, ImageReadParam)
* @see ImageReader#readAll(java.util.Iterator)
* @see ImageWriter#write(javax.imageio.metadata.IIOMetadata,
* IIOImage, ImageWriteParam)
* @see ImageWriter#write(IIOImage)
* @see ImageWriter#writeToSequence(IIOImage, ImageWriteParam)
* @see ImageWriter#writeInsert(int, IIOImage, ImageWriteParam)
*
*/
public class IIOImage {
/**
* The <code>RenderedImage</code> being referenced.
*/
protected RenderedImage image;
/**
* The <code>Raster</code> being referenced.
*/
protected Raster raster;
/**
* A <code>List</code> of <code>BufferedImage</code> thumbnails,
* or <code>null</code>. Non-<code>BufferedImage</code> objects
* must not be stored in this <code>List</code>.
*/
protected List<? extends BufferedImage> thumbnails = null;
/**
* An <code>IIOMetadata</code> object containing metadata
* associated with the image.
*/
protected IIOMetadata metadata;
/**
* Constructs an <code>IIOImage</code> containing a
* <code>RenderedImage</code>, and thumbnails and metadata
* associated with it.
*
* <p> All parameters are stored by reference.
*
* <p> The <code>thumbnails</code> argument must either be
* <code>null</code> or contain only <code>BufferedImage</code>
* objects.
*
* @param image a <code>RenderedImage</code>.
* @param thumbnails a <code>List</code> of <code>BufferedImage</code>s,
* or <code>null</code>.
* @param metadata an <code>IIOMetadata</code> object, or
* <code>null</code>.
*
* @exception IllegalArgumentException if <code>image</code> is
* <code>null</code>.
*/
public IIOImage(RenderedImage image,
List<? extends BufferedImage> thumbnails,
IIOMetadata metadata) {
if (image == null) {
throw new IllegalArgumentException("image == null!");
}
this.image = image;
this.raster = null;
this.thumbnails = thumbnails;
this.metadata = metadata;
}
/**
* Constructs an <code>IIOImage</code> containing a
* <code>Raster</code>, and thumbnails and metadata
* associated with it.
*
* <p> All parameters are stored by reference.
*
* @param raster a <code>Raster</code>.
* @param thumbnails a <code>List</code> of <code>BufferedImage</code>s,
* or <code>null</code>.
* @param metadata an <code>IIOMetadata</code> object, or
* <code>null</code>.
*
* @exception IllegalArgumentException if <code>raster</code> is
* <code>null</code>.
*/
public IIOImage(Raster raster,
List<? extends BufferedImage> thumbnails,
IIOMetadata metadata) {
if (raster == null) {
throw new IllegalArgumentException("raster == null!");
}
this.raster = raster;
this.image = null;
this.thumbnails = thumbnails;
this.metadata = metadata;
}
/**
* Returns the currently set <code>RenderedImage</code>, or
* <code>null</code> if only a <code>Raster</code> is available.
*
* @return a <code>RenderedImage</code>, or <code>null</code>.
*
* @see #setRenderedImage
*/
public RenderedImage getRenderedImage() {
synchronized(this) {
return image;
}
}
/**
* Sets the current <code>RenderedImage</code>. The value is
* stored by reference. Any existing <code>Raster</code> is
* discarded.
*
* @param image a <code>RenderedImage</code>.
*
* @exception IllegalArgumentException if <code>image</code> is
* <code>null</code>.
*
* @see #getRenderedImage
*/
public void setRenderedImage(RenderedImage image) {
synchronized(this) {
if (image == null) {
throw new IllegalArgumentException("image == null!");
}
this.image = image;
this.raster = null;
}
}
/**
* Returns <code>true</code> if this <code>IIOImage</code> stores
* a <code>Raster</code> rather than a <code>RenderedImage</code>.
*
* @return <code>true</code> if a <code>Raster</code> is
* available.
*/
public boolean hasRaster() {
synchronized(this) {
return (raster != null);
}
}
/**
* Returns the currently set <code>Raster</code>, or
* <code>null</code> if only a <code>RenderedImage</code> is
* available.
*
* @return a <code>Raster</code>, or <code>null</code>.
*
* @see #setRaster
*/
public Raster getRaster() {
synchronized(this) {
return raster;
}
}
/**
* Sets the current <code>Raster</code>. The value is
* stored by reference. Any existing <code>RenderedImage</code> is
* discarded.
*
* @param raster a <code>Raster</code>.
*
* @exception IllegalArgumentException if <code>raster</code> is
* <code>null</code>.
*
* @see #getRaster
*/
public void setRaster(Raster raster) {
synchronized(this) {
if (raster == null) {
throw new IllegalArgumentException("raster == null!");
}
this.raster = raster;
this.image = null;
}
}
/**
* Returns the number of thumbnails stored in this
* <code>IIOImage</code>.
*
* @return the number of thumbnails, as an <code>int</code>.
*/
public int getNumThumbnails() {
return thumbnails == null ? 0 : thumbnails.size();
}
/**
* Returns a thumbnail associated with the main image.
*
* @param index the index of the desired thumbnail image.
*
* @return a thumbnail image, as a <code>BufferedImage</code>.
*
* @exception IndexOutOfBoundsException if the supplied index is
* negative or larger than the largest valid index.
* @exception ClassCastException if a
* non-<code>BufferedImage</code> object is encountered in the
* list of thumbnails at the given index.
*
* @see #getThumbnails
* @see #setThumbnails
*/
public BufferedImage getThumbnail(int index) {
if (thumbnails == null) {
throw new IndexOutOfBoundsException("No thumbnails available!");
}
return (BufferedImage)thumbnails.get(index);
}
/**
* Returns the current <code>List</code> of thumbnail
* <code>BufferedImage</code>s, or <code>null</code> if none is
* set. A live reference is returned.
*
* @return the current <code>List</code> of
* <code>BufferedImage</code> thumbnails, or <code>null</code>.
*
* @see #getThumbnail(int)
* @see #setThumbnails
*/
public List<? extends BufferedImage> getThumbnails() {
return thumbnails;
}
/**
* Sets the list of thumbnails to a new <code>List</code> of
* <code>BufferedImage</code>s, or to <code>null</code>. The
* reference to the previous <code>List</code> is discarded.
*
* <p> The <code>thumbnails</code> argument must either be
* <code>null</code> or contain only <code>BufferedImage</code>
* objects.
*
* @param thumbnails a <code>List</code> of
* <code>BufferedImage</code> thumbnails, or <code>null</code>.
*
* @see #getThumbnail(int)
* @see #getThumbnails
*/
public void setThumbnails(List<? extends BufferedImage> thumbnails) {
this.thumbnails = thumbnails;
}
/**
* Returns a reference to the current <code>IIOMetadata</code>
* object, or <code>null</code> is none is set.
*
* @return an <code>IIOMetadata</code> object, or <code>null</code>.
*
* @see #setMetadata
*/
public IIOMetadata getMetadata() {
return metadata;
}
/**
* Sets the <code>IIOMetadata</code> to a new object, or
* <code>null</code>.
*
* @param metadata an <code>IIOMetadata</code> object, or
* <code>null</code>.
*
* @see #getMetadata
*/
public void setMetadata(IIOMetadata metadata) {
this.metadata = metadata;
}
}