/*
 * Copyright (c) 2014-2021 by Wen Yu
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License, v. 2.0 are satisfied: GNU General Public License, version 2
 * or any later version.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
 */

package pixy.image.tiff;

import java.util.HashMap;
import java.util.Map;

/**
 * TiffFieldEnum.java
 * <p>
 * This class provides a central place for all the TIFF fields related enumerations
 * 
 * @author Wen Yu, yuwen_66@yahoo.com
 * @version 1.0 06/26/2014
 */
public class TiffFieldEnum {
	
	public enum PhotoMetric {
		// Baseline
		WHITE_IS_ZERO("WhiteIsZero (for bilevel and grayscale images)", 0),
		BLACK_IS_ZERO("BlackIsZero (for bilevel and grayscale images)", 1),
		RGB("RGB, value of (0,0,0) represents black, and (255,255,255) represents white, assuming 8-bit components", 2),
		PALETTE_COLOR("Palette color, a color is described with a single component", 3),
		TRANSPARENCY_MASK("Transparency mask, the image is used to define an irregularly shaped region of another image in the same TIFF file. SamplesPerPixel and BitsPerSample must be 1. PackBits compression is recommended", 4),
		// Extension
		SEPARATED("Separated, usually CMYK", 5),
		YCbCr("YCbCr", 6),
		CIE_LAB("CIE L*a*b*", 8),
		ICC_LAB("ICC L*a*b*", 9),
		ITU_LAB("ITU L*a*b*", 10),
		CFA("CFA (Color Filter Array)", 32803),
		LINEAR__RAW("LinearRaw", 34892),
		
		UNKNOWN("Unknown", 9999);
		 
		private PhotoMetric(String description, int value) {
			this.description = description;
			this.value = value;
		}
		
		public String getDescription() {
			return description;
		}
		
		public int getValue() {
			return value;
		}
		
		@Override
	    public String toString() {
			return description;
		}
		
		public static PhotoMetric fromValue(int value) {
	       	PhotoMetric photoMetric = typeMap.get(value);
	    	if (photoMetric == null)
	    	   return UNKNOWN;
	      	return photoMetric;
	    }
	    
	    private static final Map<Integer, PhotoMetric> typeMap = new HashMap<Integer, PhotoMetric>();
	       
	    static
	    {
	      for(PhotoMetric photoMetric : values())
	    	  typeMap.put(photoMetric.getValue(), photoMetric);
	    } 

		private String description;
		private int value;
	}
	
	public enum Compression {
		//
		NONE("No Compression", 1),
		CCITTRLE("CCITT modified Huffman RLE", 2),
		CCITTFAX3("CCITT Group 3 fax encoding", 3),
		CCITTFAX4("CCITT Group 4 fax encoding", 4),
		LZW("LZW", 5),
		OLD_JPG("JPEG ('old-style' JPEG)", 6),
	    JPG("JPEG ('new-style' JPEG technote #2)", 7),
	    DEFLATE_ADOBE("Deflate ('Adobe-style')", 8),
	    JBIG_ON_BW("JBIG on black and white", 9),
		JBIG_ON_COLOR("JBIG on color", 10),
		PACKBITS("PackBits compression, aka Macintosh RLE", 32773),
		DEFLATE("Deflate", 32946),	
		
		UNKNOWN("Unknown", 9999);
		
		private Compression(String description, int value) {
			this.description = description;
			this.value = value;
		}
		
		public String getDescription() {
			return description;
		}
		
		public int getValue() {
			return value;
		}
		
		@Override
	    public String toString() {
			return description;
		}
		
		public static Compression fromValue(int value) {
	       	Compression compression = typeMap.get(value);
	    	if (compression == null)
	    	   return UNKNOWN;
	      	return compression;
	    }
	    
	    private static final Map<Integer, Compression> typeMap = new HashMap<Integer, Compression>();
	       
	    static
	    {
	      for(Compression compression : values())
	    	  typeMap.put(compression.getValue(), compression);
	    } 

		private String description;
		private int value;
	}
	
	public enum PlanarConfiguration {
		CONTIGUOUS("Chunky format (The component values for each pixel are stored contiguously)", 1),
		SEPARATE("Planar format (The components are stored in separate component planes)", 2),
		UNKNOWN("Unknown", 9999);
		
		private PlanarConfiguration(String description, int value) {
			this.description = description;
			this.value = value;
		}
		
		public String getDescription() {
			return description;
		}
		
		public int getValue() {
			return value;
		}
		
		@Override
	    public String toString() {
			return description;
		}
		
		public static PlanarConfiguration fromValue(int value) {
	       	PlanarConfiguration planarConfiguration = typeMap.get(value);
	    	if (planarConfiguration == null)
	    	   return UNKNOWN;
	      	return planarConfiguration;
	    }
	    
	    private static final Map<Integer, PlanarConfiguration> typeMap = new HashMap<Integer, PlanarConfiguration>();
	       
	    static
	    {
	      for(PlanarConfiguration planarConfiguration : values())
	    	  typeMap.put(planarConfiguration.getValue(), planarConfiguration);
	    } 
		
		private final String description;
		private final int value;
	}
	
	private TiffFieldEnum() {}	
}