/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sanselan.formats.icns;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import org.apache.sanselan.ImageFormat;
import org.apache.sanselan.ImageInfo;
import org.apache.sanselan.ImageParser;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.ImageWriteException;
import org.apache.sanselan.common.BinaryOutputStream;
import org.apache.sanselan.common.IImageMetadata;
import org.apache.sanselan.common.byteSources.ByteSource;
import org.apache.sanselan.util.Debug;
import org.apache.sanselan.util.ParamMap;
import com.google.code.appengine.awt.Dimension;
import com.google.code.appengine.awt.image.BufferedImage;
public class IcnsImageParser extends ImageParser
{
public static final int ICNS_MAGIC = IcnsType.typeAsInt("icns");
public IcnsImageParser()
{
super.setByteOrder(BYTE_ORDER_MSB);
}
public String getName()
{
return "icns-Custom";
}
public String getDefaultExtension()
{
return DEFAULT_EXTENSION;
}
private static final String DEFAULT_EXTENSION = ".icns";
private static final String ACCEPTED_EXTENSIONS[] = {
".icns",
};
protected String[] getAcceptedExtensions()
{
return ACCEPTED_EXTENSIONS;
}
protected ImageFormat[] getAcceptedTypes()
{
return new ImageFormat[]{
ImageFormat.IMAGE_FORMAT_ICNS
};
}
public boolean embedICCProfile(File src, File dst, byte profile[])
{
return false;
}
public IImageMetadata getMetadata(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}
public ImageInfo getImageInfo(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
boolean verbose = ParamMap.getParamBoolean(params, PARAM_KEY_VERBOSE,
false);
if (params.containsKey(PARAM_KEY_VERBOSE))
params.remove(PARAM_KEY_VERBOSE);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageReadException("Unknown parameter: " + firstKey);
}
IcnsContents contents = readImage(byteSource);
ArrayList images = IcnsDecoder.decodeAllImages(contents.icnsElements);
if (images.isEmpty())
throw new ImageReadException("No icons in ICNS file");
BufferedImage image0 = (BufferedImage) images.get(0);
return new ImageInfo("Icns", 32, new ArrayList(), ImageFormat.IMAGE_FORMAT_ICNS,
"ICNS Apple Icon Image", image0.getHeight(), "image/x-icns", images.size(),
0, 0, 0, 0, image0.getWidth(), false, true, false, ImageInfo.COLOR_TYPE_RGB,
ImageInfo.COMPRESSION_ALGORITHM_UNKNOWN);
}
public Dimension getImageSize(ByteSource byteSource,
Map params)
throws ImageReadException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
boolean verbose = ParamMap.getParamBoolean(params, PARAM_KEY_VERBOSE,
false);
if (params.containsKey(PARAM_KEY_VERBOSE))
params.remove(PARAM_KEY_VERBOSE);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageReadException("Unknown parameter: " + firstKey);
}
IcnsContents contents = readImage(byteSource);
ArrayList images = IcnsDecoder.decodeAllImages(contents.icnsElements);
if (images.isEmpty())
throw new ImageReadException("No icons in ICNS file");
BufferedImage image0 = (BufferedImage) images.get(0);
return new Dimension(image0.getWidth(), image0.getHeight());
}
public byte[] getICCProfileBytes(ByteSource byteSource,
Map params)
throws ImageReadException, IOException
{
return null;
}
private static class IcnsHeader
{
public final int magic; // Magic literal (4 bytes), always "icns"
public final int fileSize; // Length of file (4 bytes), in bytes.
public IcnsHeader(final int magic, final int fileSize)
{
this.magic = magic;
this.fileSize = fileSize;
}
public void dump(PrintWriter pw)
{
pw.println("IcnsHeader");
pw.println("Magic: 0x" + Integer.toHexString(magic) +
" (" + IcnsType.describeType(magic) + ")");
pw.println("FileSize: " + fileSize);
pw.println("");
}
}
private IcnsHeader readIcnsHeader(InputStream is)
throws ImageReadException, IOException
{
int Magic = read4Bytes("Magic", is, "Not a Valid ICNS File");
int FileSize = read4Bytes("FileSize", is, "Not a Valid ICNS File");
if (Magic != ICNS_MAGIC)
throw new ImageReadException("Not a Valid ICNS File: " +
"magic is 0x" + Integer.toHexString(Magic));
return new IcnsHeader(Magic, FileSize);
}
public static class IcnsElement
{
public final int type;
public final int elementSize;
public final byte[] data;
public IcnsElement(final int type, final int elementSize, byte[] data)
{
this.type = type;
this.elementSize = elementSize;
this.data = data;
}
public void dump(PrintWriter pw)
{
pw.println("IcnsElement");
IcnsType icnsType = IcnsType.findAnyType(type);
String typeDescription;
if (icnsType == null)
typeDescription = "";
else
typeDescription = " " + icnsType.toString();
pw.println("Type: 0x" + Integer.toHexString(type) +
" (" + IcnsType.describeType(type) + ")" +
typeDescription);
pw.println("ElementSize: " + elementSize);
pw.println("");
}
}
private IcnsElement readIcnsElement(InputStream is) throws ImageReadException,
IOException
{
int type = read4Bytes("Type", is, "Not a Valid ICNS File"); // Icon type (4 bytes)
int elementSize = read4Bytes("ElementSize", is, "Not a Valid ICNS File"); // Length of data (4 bytes), in bytes, including this header
byte[] data = readByteArray("Data", elementSize - 8, is, "Not a Valid ICNS File");
return new IcnsElement(type, elementSize, data);
}
private static class IcnsContents
{
public final IcnsHeader icnsHeader;
public final IcnsElement icnsElements[];
public IcnsContents(final IcnsHeader icnsHeader,
final IcnsElement[] icnsElements)
{
super();
this.icnsHeader = icnsHeader;
this.icnsElements = icnsElements;
}
}
private IcnsContents readImage(ByteSource byteSource)
throws ImageReadException, IOException
{
InputStream is = null;
try
{
is = byteSource.getInputStream();
IcnsHeader icnsHeader = readIcnsHeader(is);
ArrayList icnsElementList = new ArrayList();
for (int remainingSize = icnsHeader.fileSize - 8;
remainingSize > 0; )
{
IcnsElement icnsElement = readIcnsElement(is);
icnsElementList.add(icnsElement);
remainingSize -= icnsElement.elementSize;
}
IcnsElement[] icnsElements = new IcnsElement[icnsElementList.size()];
for (int i = 0; i < icnsElements.length; i++)
icnsElements[i] = (IcnsElement) icnsElementList.get(i);
return new IcnsContents(icnsHeader, icnsElements);
}
finally
{
try
{
is.close();
}
catch (Exception e)
{
Debug.debug(e);
}
}
}
public boolean dumpImageFile(PrintWriter pw, ByteSource byteSource)
throws ImageReadException, IOException
{
IcnsContents icnsContents = readImage(byteSource);
icnsContents.icnsHeader.dump(pw);
for (int i = 0; i < icnsContents.icnsElements.length; i++)
icnsContents.icnsElements[i].dump(pw);
return true;
}
public final BufferedImage getBufferedImage(ByteSource byteSource,
Map params) throws ImageReadException, IOException
{
IcnsContents icnsContents = readImage(byteSource);
ArrayList result = IcnsDecoder.decodeAllImages(icnsContents.icnsElements);
if (result.size() > 0)
return (BufferedImage) result.get(0);
else
throw new ImageReadException("No icons in ICNS file");
}
public ArrayList getAllBufferedImages(ByteSource byteSource)
throws ImageReadException, IOException
{
IcnsContents icnsContents = readImage(byteSource);
return IcnsDecoder.decodeAllImages(icnsContents.icnsElements);
}
public void writeImage(BufferedImage src, OutputStream os, Map params)
throws ImageWriteException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
// clear format key.
if (params.containsKey(PARAM_KEY_FORMAT))
params.remove(PARAM_KEY_FORMAT);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageWriteException("Unknown parameter: " + firstKey);
}
IcnsType imageType;
if (src.getWidth() == 16 && src.getHeight() == 16)
imageType = IcnsType.ICNS_16x16_32BIT_IMAGE;
else if (src.getWidth() == 32 && src.getHeight() == 32)
imageType = IcnsType.ICNS_32x32_32BIT_IMAGE;
else if (src.getWidth() == 48 && src.getHeight() == 48)
imageType = IcnsType.ICNS_48x48_32BIT_IMAGE;
else if (src.getWidth() == 128 && src.getHeight() == 128)
imageType = IcnsType.ICNS_128x128_32BIT_IMAGE;
else
throw new ImageWriteException("Invalid/unsupported source width " +
src.getWidth() + " and height " + src.getHeight());
BinaryOutputStream bos = new BinaryOutputStream(os, BYTE_ORDER_BIG_ENDIAN);
bos.write4Bytes(ICNS_MAGIC);
bos.write4Bytes(4 + 4 + 4 + 4 + 4*imageType.getWidth()*imageType.getHeight() +
4 + 4 + imageType.getWidth()*imageType.getHeight());
bos.write4Bytes(imageType.getType());
bos.write4Bytes(4 + 4 + 4*imageType.getWidth()*imageType.getHeight());
for (int y = 0; y < src.getHeight(); y++)
{
for (int x = 0; x < src.getWidth(); x++)
{
int argb = src.getRGB(x, y);
bos.write(0);
bos.write(argb >> 16);
bos.write(argb >> 8);
bos.write(argb);
}
}
IcnsType maskType = IcnsType.find8BPPMaskType(imageType);
bos.write4Bytes(maskType.getType());
bos.write4Bytes(4 + 4 + imageType.getWidth()*imageType.getWidth());
for (int y = 0; y < src.getHeight(); y++)
{
for (int x = 0; x < src.getWidth(); x++)
{
int argb = src.getRGB(x, y);
bos.write(argb >> 24);
}
}
}
/**
* Extracts embedded XML metadata as XML string.
* <p>
*
* @param byteSource
* File containing image data.
* @param params
* Map of optional parameters, defined in SanselanConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public String getXmpXml(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}
}