corrade-vassal – Rev 1

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/// <summary>**************************************************************************
/// 
/// $Id: ImageHeaderBox.java,v 1.1 2002/07/25 14:50:47 grosbois Exp $
/// 
/// Copyright Eastman Kodak Company, 343 State Street, Rochester, NY 14650
/// $Date $
/// ***************************************************************************
/// </summary>
using System;
using ColorSpaceException = CSJ2K.Color.ColorSpaceException;
using ParameterList = CSJ2K.j2k.util.ParameterList;
using RandomAccessIO = CSJ2K.j2k.io.RandomAccessIO;
using ICCProfile = CSJ2K.Icc.ICCProfile;
namespace CSJ2K.Color.Boxes
{
        
        /// <summary> This class models the Image Header box contained in a JP2
        /// image.  It is a stub class here since for colormapping the
        /// knowlege of the existance of the box in the image is sufficient.
        /// 
        /// </summary>
        /// <version>   1.0
        /// </version>
        /// <author>    Bruce A. Kern
        /// </author>
        public sealed class ImageHeaderBox:JP2Box
        {
                
                internal long height;
                internal long width;
                internal int nc;
                internal short bpc;
                internal short c;
                internal bool unk;
                internal bool ipr;
                
                
                /// <summary> Construct an ImageHeaderBox from an input image.</summary>
                /// <param name="in">RandomAccessIO jp2 image
                /// </param>
                /// <param name="boxStart">offset to the start of the box in the image
                /// </param>
                /// <exception cref="IOException,">ColorSpaceException
                /// </exception>
                public ImageHeaderBox(RandomAccessIO in_Renamed, int boxStart):base(in_Renamed, boxStart)
                {
                        readBox();
                }
                
                /// <summary>Return a suitable String representation of the class instance. </summary>
                public override System.String ToString()
                {
                        System.Text.StringBuilder rep = new System.Text.StringBuilder("[ImageHeaderBox ").Append(eol).Append("  ");
                        rep.Append("height= ").Append(System.Convert.ToString(height)).Append(", ");
                        rep.Append("width= ").Append(System.Convert.ToString(width)).Append(eol).Append("  ");
                        
                        rep.Append("nc= ").Append(System.Convert.ToString(nc)).Append(", ");
                        rep.Append("bpc= ").Append(System.Convert.ToString(bpc)).Append(", ");
                        rep.Append("c= ").Append(System.Convert.ToString(c)).Append(eol).Append("  ");
                        
                        rep.Append("image colorspace is ").Append(new System.Text.StringBuilder(unk == true?"known":"unknown").ToString());
                        rep.Append(", the image ").Append(new System.Text.StringBuilder(ipr == true?"contains ":"does not contain ").ToString()).Append("intellectual property").Append("]");
                        
                        return rep.ToString();
                }
                
                /// <summary>Analyze the box content. </summary>
                internal void  readBox()
                {
                        byte[] bfr = new byte[14];
                        in_Renamed.seek(dataStart);
                        in_Renamed.readFully(bfr, 0, 14);

            height = ICCProfile.getInt(bfr, 0);
            width = ICCProfile.getInt(bfr, 4);
            nc = ICCProfile.getShort(bfr, 8);
                        bpc = (short) (bfr[10] & 0x00ff);
                        c = (short) (bfr[11] & 0x00ff);
                        unk = bfr[12] == 0?true:false;
                        ipr = bfr[13] == 1?true:false;
                }
                
                /* end class ImageHeaderBox */
                static ImageHeaderBox()
                {
                        {
                                type = 69686472;
                        }
                }
        }
}

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