/* * Copyright (c) 1997, 2005, 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.awt.AWTException;import java.awt.Component;import java.awt.Graphics2D;import java.awt.GraphicsConfiguration;import java.awt.GraphicsDevice;import java.awt.ImageCapabilities;import java.awt.Rectangle;import java.awt.Transparency;import java.awt.geom.AffineTransform;import java.awt.image.BufferedImage;import java.awt.image.ColorModel;import java.awt.image.DirectColorModel;import java.awt.image.Raster;import java.awt.image.VolatileImage;import java.awt.image.WritableRaster; public class BufferedImageGraphicsConfig    extends GraphicsConfiguration{    private static final int numconfigs = BufferedImage.TYPE_BYTE_BINARY;    private static BufferedImageGraphicsConfig configs[] =        new BufferedImageGraphicsConfig[numconfigs];     public static BufferedImageGraphicsConfig getConfig(BufferedImage bImg) {        BufferedImageGraphicsConfig ret;        int type = bImg.getType();        if (type > 0 && type < numconfigs) {            ret = configs[type];            if (ret != null) {                return ret;            }        }        ret = new BufferedImageGraphicsConfig(bImg, null);        if (type > 0 && type < numconfigs) {            configs[type] = ret;        }        return ret;    }     GraphicsDevice gd;    ColorModel model;    Raster raster;    int width, height;     public BufferedImageGraphicsConfig(BufferedImage bufImg, Component comp) {        if (comp == null) {            this.gd = new BufferedImageDevice(this);        } else {            Graphics2D g2d = (Graphics2D)comp.getGraphics();            this.gd = g2d.getDeviceConfiguration().getDevice();        }        this.model = bufImg.getColorModel();        this.raster = bufImg.getRaster().createCompatibleWritableRaster(1, 1);        this.width = bufImg.getWidth();        this.height = bufImg.getHeight();    }     /**     * Return the graphics device associated with this configuration.     */    public GraphicsDevice getDevice() {        return gd;    }     /**     * Returns a BufferedImage with channel layout and color model     * compatible with this graphics configuration.  This method     * has nothing to do with memory-mapping     * a device.  This BufferedImage has     * a layout and color model     * that is closest to this native device configuration and thus     * can be optimally blitted to this device.     */    public BufferedImage createCompatibleImage(int width, int height) {        WritableRaster wr = raster.createCompatibleWritableRaster(width, height);        return new BufferedImage(model, wr, model.isAlphaPremultiplied(), null);    }     /**     * Returns the color model associated with this configuration.     */    public ColorModel getColorModel() {        return model;    }     /**     * Returns the color model associated with this configuration that     * supports the specified transparency.     */    public ColorModel getColorModel(int transparency) {         if (model.getTransparency() == transparency) {            return model;        }        switch (transparency) {        case Transparency.OPAQUE:            return new DirectColorModel(24, 0xff0000, 0xff00, 0xff);        case Transparency.BITMASK:            return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);        case Transparency.TRANSLUCENT:            return ColorModel.getRGBdefault();        default:            return null;        }    }     /**     * Returns the default Transform for this configuration.  This     * Transform is typically the Identity transform for most normal     * screens.  Device coordinates for screen and printer devices will     * have the origin in the upper left-hand corner of the target region of     * the device, with X coordinates     * increasing to the right and Y coordinates increasing downwards.     * For image buffers, this Transform will be the Identity transform.     */    public AffineTransform getDefaultTransform() {        return new AffineTransform();    }     /**     *     * Returns a Transform that can be composed with the default Transform     * of a Graphics2D so that 72 units in user space will equal 1 inch     * in device space.     * Given a Graphics2D, g, one can reset the transformation to create     * such a mapping by using the following pseudocode:     * <pre>     *      GraphicsConfiguration gc = g.getGraphicsConfiguration();     *     *      g.setTransform(gc.getDefaultTransform());     *      g.transform(gc.getNormalizingTransform());     * </pre>     * Note that sometimes this Transform will be identity (e.g. for     * printers or metafile output) and that this Transform is only     * as accurate as the information supplied by the underlying system.     * For image buffers, this Transform will be the Identity transform,     * since there is no valid distance measurement.     */    public AffineTransform getNormalizingTransform() {        return new AffineTransform();    }     public Rectangle getBounds() {        return new Rectangle(0, 0, width, height);    }}