/* * Copyright (c) 2003, 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 com.sun.imageio.plugins.bmp; import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import javax.imageio.ImageTypeSpecifier;import javax.imageio.metadata.IIOMetadata;import javax.imageio.metadata.IIOMetadataNode;import javax.imageio.metadata.IIOMetadataFormat;import javax.imageio.metadata.IIOMetadataFormatImpl;import org.w3c.dom.Node;import com.sun.imageio.plugins.common.I18N; import com.sun.imageio.plugins.common.ImageUtil; public class BMPMetadata extends IIOMetadata implements BMPConstants {    public static final String nativeMetadataFormatName =        "javax_imageio_bmp_1.0";     // Fields for Image Descriptor    public String bmpVersion;    public int width ;    public int height;    public short bitsPerPixel;    public int compression;    public int imageSize;     // Fields for PixelsPerMeter    public int xPixelsPerMeter;    public int yPixelsPerMeter;     public int colorsUsed;    public int colorsImportant;     // Fields for BI_BITFIELDS compression(Mask)    public int redMask;    public int greenMask;    public int blueMask;    public int alphaMask;     public int colorSpace;     // Fields for CIE XYZ for the LCS_CALIBRATED_RGB color space    public double redX;    public double redY;    public double redZ;    public double greenX;    public double greenY;    public double greenZ;    public double blueX;    public double blueY;    public double blueZ;     // Fields for Gamma values for the LCS_CALIBRATED_RGB color space    public int gammaRed;    public int gammaGreen;    public int gammaBlue;     public int intent;     // Fields for the Palette and Entries    public byte[] palette = null;    public int paletteSize;    public int red;    public int green;    public int blue;     // Fields from CommentExtension    // List of byte[]    public List comments = null; // new ArrayList();     public BMPMetadata() {        super(true,              nativeMetadataFormatName,              "com.sun.imageio.plugins.bmp.BMPMetadataFormat",              null, null);    }     public boolean isReadOnly() {        return true;    }     public Node getAsTree(String formatName) {        if (formatName.equals(nativeMetadataFormatName)) {            return getNativeTree();        } else if (formatName.equals                   (IIOMetadataFormatImpl.standardMetadataFormatName)) {            return getStandardTree();        } else {            throw new IllegalArgumentException(I18N.getString("BMPMetadata0"));        }    }     private String toISO8859(byte[] data) {        try {            return new String(data, "ISO-8859-1");        } catch (UnsupportedEncodingException e) {            return "";        }    }     private Node getNativeTree() {        IIOMetadataNode root =            new IIOMetadataNode(nativeMetadataFormatName);         addChildNode(root, "BMPVersion", bmpVersion);        addChildNode(root, "Width", new Integer(width));        addChildNode(root, "Height", new Integer(height));        addChildNode(root, "BitsPerPixel", new Short(bitsPerPixel));        addChildNode(root, "Compression", new Integer(compression));        addChildNode(root, "ImageSize", new Integer(imageSize));         IIOMetadataNode node = addChildNode(root, "PixelsPerMeter", null);        addChildNode(node, "X", new Integer(xPixelsPerMeter));        addChildNode(node, "Y", new Integer(yPixelsPerMeter));         addChildNode(root, "ColorsUsed", new Integer(colorsUsed));        addChildNode(root, "ColorsImportant", new Integer(colorsImportant));         int version = 0;        for (int i = 0; i < bmpVersion.length(); i++)            if (Character.isDigit(bmpVersion.charAt(i)))                version = bmpVersion.charAt(i) -'0';         if (version >= 4) {            node = addChildNode(root, "Mask", null);            addChildNode(node, "Red", new Integer(redMask));            addChildNode(node, "Green", new Integer(greenMask));            addChildNode(node, "Blue", new Integer(blueMask));            addChildNode(node, "Alpha", new Integer(alphaMask));             addChildNode(root, "ColorSpaceType", new Integer(colorSpace));             node = addChildNode(root, "CIEXYZEndPoints", null);            addXYZPoints(node, "Red", redX, redY, redZ);            addXYZPoints(node, "Green", greenX, greenY, greenZ);            addXYZPoints(node, "Blue", blueX, blueY, blueZ);             node = addChildNode(root, "Intent", new Integer(intent));        }         // Palette        if ((palette != null) && (paletteSize > 0)) {            node = addChildNode(root, "Palette", null);            int numComps = palette.length / paletteSize;             for (int i = 0, j = 0; i < paletteSize; i++) {                IIOMetadataNode entry =                    addChildNode(node, "PaletteEntry", null);                red = palette[j++] & 0xff;                green = palette[j++] & 0xff;                blue = palette[j++] & 0xff;                addChildNode(entry, "Red", new Byte((byte)red));                addChildNode(entry, "Green", new Byte((byte)green));                addChildNode(entry, "Blue", new Byte((byte)blue));                if (numComps == 4)                    addChildNode(entry, "Alpha",                                 new Byte((byte)(palette[j++] & 0xff)));            }        }         return root;    }     // Standard tree node methods    protected IIOMetadataNode getStandardChromaNode() {         if ((palette != null) && (paletteSize > 0)) {            IIOMetadataNode node = new IIOMetadataNode("Chroma");            IIOMetadataNode subNode = new IIOMetadataNode("Palette");            int numComps = palette.length / paletteSize;            subNode.setAttribute("value", "" + numComps);             for (int i = 0, j = 0; i < paletteSize; i++) {                IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");                subNode1.setAttribute("index", ""+i);                subNode1.setAttribute("red", "" + palette[j++]);                subNode1.setAttribute("green", "" + palette[j++]);                subNode1.setAttribute("blue", "" + palette[j++]);                if (numComps == 4 && palette[j] != 0)                    subNode1.setAttribute("alpha", "" + palette[j++]);                subNode.appendChild(subNode1);            }            node.appendChild(subNode);            return node;        }         return null;    }     protected IIOMetadataNode getStandardCompressionNode() {        IIOMetadataNode node = new IIOMetadataNode("Compression");         // CompressionTypeName        IIOMetadataNode subNode = new IIOMetadataNode("CompressionTypeName");        subNode.setAttribute("value", compressionTypeNames[compression]);        node.appendChild(subNode);        return node;    }     protected IIOMetadataNode getStandardDataNode() {        IIOMetadataNode node = new IIOMetadataNode("Data");         String bits = "";        if (bitsPerPixel == 24)            bits = "8 8 8 ";        else if (bitsPerPixel == 16 || bitsPerPixel == 32) {            bits = "" + countBits(redMask) + " " + countBits(greenMask) +                  countBits(blueMask) + "" + countBits(alphaMask);        }         IIOMetadataNode subNode = new IIOMetadataNode("BitsPerSample");        subNode.setAttribute("value", bits);        node.appendChild(subNode);         return node;    }     protected IIOMetadataNode getStandardDimensionNode() {        if (yPixelsPerMeter > 0.0F && xPixelsPerMeter > 0.0F) {            IIOMetadataNode node = new IIOMetadataNode("Dimension");            float ratio = yPixelsPerMeter / xPixelsPerMeter;            IIOMetadataNode subNode = new IIOMetadataNode("PixelAspectRatio");            subNode.setAttribute("value", "" + ratio);            node.appendChild(subNode);             subNode = new IIOMetadataNode("HorizontalPhysicalPixelSpacing");            subNode.setAttribute("value", "" + (1 / xPixelsPerMeter * 1000));            node.appendChild(subNode);             subNode = new IIOMetadataNode("VerticalPhysicalPixelSpacing");            subNode.setAttribute("value", "" + (1 / yPixelsPerMeter * 1000));            node.appendChild(subNode);             return node;        }        return null;    }     public void setFromTree(String formatName, Node root) {        throw new IllegalStateException(I18N.getString("BMPMetadata1"));    }     public void mergeTree(String formatName, Node root) {        throw new IllegalStateException(I18N.getString("BMPMetadata1"));    }     public void reset() {        throw new IllegalStateException(I18N.getString("BMPMetadata1"));    }     private String countBits(int num) {        int count = 0;        while(num > 0) {            if ((num & 1) == 1)                count++;            num >>>= 1;        }         return count == 0 ? "" : "" + count;    }     private void addXYZPoints(IIOMetadataNode root, String name, double x, double y, double z) {        IIOMetadataNode node = addChildNode(root, name, null);        addChildNode(node, "X", new Double(x));        addChildNode(node, "Y", new Double(y));        addChildNode(node, "Z", new Double(z));    }     private IIOMetadataNode addChildNode(IIOMetadataNode root,                                         String name,                                         Object object) {        IIOMetadataNode child = new IIOMetadataNode(name);        if (object != null) {            child.setUserObject(object);            child.setNodeValue(ImageUtil.convertObjectToString(object));        }        root.appendChild(child);        return child;    }}