| /* |
| * Copyright (c) 1995, 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 sun.awt.image; |
| |
| import java.util.Hashtable; |
| import java.util.Enumeration; |
| |
| import java.awt.Component; |
| import java.awt.Color; |
| import java.awt.Graphics; |
| import java.awt.Image; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ColorModel; |
| import java.awt.image.ImageProducer; |
| import java.awt.image.ImageConsumer; |
| import java.awt.image.ImageObserver; |
| import sun.awt.image.ImageRepresentation; |
| import sun.awt.image.FileImageSource; |
| |
| public class ToolkitImage extends Image { |
| |
| /** |
| * The object which is used to reconstruct the original image data |
| * as needed. |
| */ |
| ImageProducer source; |
| |
| InputStreamImageSource src; |
| |
| ImageRepresentation imagerep; |
| |
| static { |
| /* ensure that the necessary native libraries are loaded */ |
| NativeLibLoader.loadLibraries(); |
| } |
| |
| protected ToolkitImage() { |
| } |
| |
| /** |
| * Construct an image from an ImageProducer object. |
| */ |
| public ToolkitImage(ImageProducer is) { |
| source = is; |
| if (is instanceof InputStreamImageSource) { |
| src = (InputStreamImageSource) is; |
| } |
| } |
| |
| public ImageProducer getSource() { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| return source; |
| } |
| |
| private int width = -1; |
| private int height = -1; |
| private Hashtable properties; |
| |
| private int availinfo; |
| |
| /** |
| * Return the width of the original image source. |
| * If the width isn't known, then the image is reconstructed. |
| */ |
| public int getWidth() { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if ((availinfo & ImageObserver.WIDTH) == 0) { |
| reconstruct(ImageObserver.WIDTH); |
| } |
| return width; |
| } |
| |
| /** |
| * Return the width of the original image source. |
| * If the width isn't known, then the ImageObserver object will be |
| * notified when the data is available. |
| */ |
| public synchronized int getWidth(ImageObserver iw) { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if ((availinfo & ImageObserver.WIDTH) == 0) { |
| addWatcher(iw, true); |
| if ((availinfo & ImageObserver.WIDTH) == 0) { |
| return -1; |
| } |
| } |
| return width; |
| } |
| |
| /** |
| * Return the height of the original image source. |
| * If the height isn't known, then the image is reconstructed. |
| */ |
| public int getHeight() { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if ((availinfo & ImageObserver.HEIGHT) == 0) { |
| reconstruct(ImageObserver.HEIGHT); |
| } |
| return height; |
| } |
| |
| /** |
| * Return the height of the original image source. |
| * If the height isn't known, then the ImageObserver object will be |
| * notified when the data is available. |
| */ |
| public synchronized int getHeight(ImageObserver iw) { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if ((availinfo & ImageObserver.HEIGHT) == 0) { |
| addWatcher(iw, true); |
| if ((availinfo & ImageObserver.HEIGHT) == 0) { |
| return -1; |
| } |
| } |
| return height; |
| } |
| |
| /** |
| * Return a property of the image by name. Individual property names |
| * are defined by the various image formats. If a property is not |
| * defined for a particular image, then this method will return the |
| * UndefinedProperty object. If the properties for this image are |
| * not yet known, then this method will return null and the ImageObserver |
| * object will be notified later. The property name "comment" should |
| * be used to store an optional comment which can be presented to |
| * the user as a description of the image, its source, or its author. |
| */ |
| public Object getProperty(String name, ImageObserver observer) { |
| if (name == null) { |
| throw new NullPointerException("null property name is not allowed"); |
| } |
| |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if (properties == null) { |
| addWatcher(observer, true); |
| if (properties == null) { |
| return null; |
| } |
| } |
| Object o = properties.get(name); |
| if (o == null) { |
| o = Image.UndefinedProperty; |
| } |
| return o; |
| } |
| |
| public boolean hasError() { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| return (availinfo & ImageObserver.ERROR) != 0; |
| } |
| |
| public int check(ImageObserver iw) { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if ((availinfo & ImageObserver.ERROR) == 0 && |
| ((~availinfo) & (ImageObserver.WIDTH | |
| ImageObserver.HEIGHT | |
| ImageObserver.PROPERTIES)) != 0) { |
| addWatcher(iw, false); |
| } |
| return availinfo; |
| } |
| |
| public void preload(ImageObserver iw) { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if ((availinfo & ImageObserver.ALLBITS) == 0) { |
| addWatcher(iw, true); |
| } |
| } |
| |
| private synchronized void addWatcher(ImageObserver iw, boolean load) { |
| if ((availinfo & ImageObserver.ERROR) != 0) { |
| if (iw != null) { |
| iw.imageUpdate(this, ImageObserver.ERROR|ImageObserver.ABORT, |
| -1, -1, -1, -1); |
| } |
| return; |
| } |
| ImageRepresentation ir = getImageRep(); |
| ir.addWatcher(iw); |
| if (load) { |
| ir.startProduction(); |
| } |
| } |
| |
| private synchronized void reconstruct(int flags) { |
| if ((flags & ~availinfo) != 0) { |
| if ((availinfo & ImageObserver.ERROR) != 0) { |
| return; |
| } |
| ImageRepresentation ir = getImageRep(); |
| ir.startProduction(); |
| while ((flags & ~availinfo) != 0) { |
| try { |
| wait(); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| return; |
| } |
| if ((availinfo & ImageObserver.ERROR) != 0) { |
| return; |
| } |
| } |
| } |
| } |
| |
| synchronized void addInfo(int newinfo) { |
| availinfo |= newinfo; |
| notifyAll(); |
| } |
| |
| void setDimensions(int w, int h) { |
| width = w; |
| height = h; |
| addInfo(ImageObserver.WIDTH | ImageObserver.HEIGHT); |
| } |
| |
| void setProperties(Hashtable props) { |
| if (props == null) { |
| props = new Hashtable(); |
| } |
| properties = props; |
| addInfo(ImageObserver.PROPERTIES); |
| } |
| |
| synchronized void infoDone(int status) { |
| if (status == ImageConsumer.IMAGEERROR || |
| ((~availinfo) & (ImageObserver.WIDTH | |
| ImageObserver.HEIGHT)) != 0) { |
| addInfo(ImageObserver.ERROR); |
| } else if ((availinfo & ImageObserver.PROPERTIES) == 0) { |
| setProperties(null); |
| } |
| } |
| |
| public void flush() { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| |
| ImageRepresentation ir; |
| synchronized (this) { |
| availinfo &= ~ImageObserver.ERROR; |
| ir = imagerep; |
| imagerep = null; |
| } |
| if (ir != null) { |
| ir.abort(); |
| } |
| if (src != null) { |
| src.flush(); |
| } |
| } |
| |
| protected ImageRepresentation makeImageRep() { |
| return new ImageRepresentation(this, ColorModel.getRGBdefault(), |
| false); |
| } |
| |
| public synchronized ImageRepresentation getImageRep() { |
| if (src != null) { |
| src.checkSecurity(null, false); |
| } |
| if (imagerep == null) { |
| imagerep = makeImageRep(); |
| } |
| return imagerep; |
| } |
| |
| public Graphics getGraphics() { |
| throw new UnsupportedOperationException("getGraphics() not valid for images " + |
| "created with createImage(producer)"); |
| } |
| |
| /* this method is needed by printing code */ |
| public ColorModel getColorModel() { |
| ImageRepresentation imageRep = getImageRep(); |
| return imageRep.getColorModel(); |
| } |
| |
| /* this method is needed by printing code */ |
| public BufferedImage getBufferedImage() { |
| ImageRepresentation imageRep = getImageRep(); |
| return imageRep.getBufferedImage(); |
| } |
| |
| public void setAccelerationPriority(float priority) { |
| super.setAccelerationPriority(priority); |
| ImageRepresentation imageRep = getImageRep(); |
| imageRep.setAccelerationPriority(accelerationPriority); |
| } |
| } |