/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

* 

* Description:

*

*/

using System;

using System.IO;

using System.Text;

using System.Collections.Generic;

using SymbianUtils;

using SymbianUtils.Range;

namespace SymbolLib.CodeSegDef

{

    public class CodeSegDefinition : CodeSegResolverEntry

	{

        #region Enumerations

        [Flags]

        public enum TAttributes

        {

            EAttributeNone = 0,

            EAttributeXIP = 1,

            EAttributeRAM = 2,

        }

        #endregion

        #region Constructors & destructor

        public CodeSegDefinition()

            : this( string.Empty )

		{

		}

		public CodeSegDefinition( string aFileName )

            : this( aFileName, string.Empty )

		{

		}

		public CodeSegDefinition( string aEnvFileName, string aImageFileName )

            : base( aEnvFileName, aImageFileName )

        {

		}

		#endregion

		#region Constants

		public const string KMapFileExtension = ".map";

        public const string KSysBinPath = @"\sys\bin\";

        public const string KROMBinaryPath = "z:" + KSysBinPath;

        #endregion

        #region API

        #endregion

        #region Properties

        public string MapFileName

		{

			get

			{

                string ret = string.Empty;

                //

                if ( !String.IsNullOrEmpty( EnvironmentFileNameAndPath ) )

                {

                    ret = EnvironmentFileNameAndPath + KMapFileExtension;

                }

                //

				return ret;

			}

		}

		public bool MapFileExists

		{

			get

			{

				bool ret = false;

				//

				try

				{

					string fileName = MapFileName;

					ret = File.Exists( fileName );

				}

				finally

				{

				}

				//

				return ret;

			}

		}

        public bool AddressValid

        {

            get

            {

                bool good = iRange.IsValid;

                return good;

            }

        }

		public uint AddressStart

		{

			get { return (uint) iRange.Min; }

			set

            { 

                iRange.UpdateMin( value );

                UpdateAttributes();

            }

		}

        public uint AddressEnd

		{

            get { return (uint) iRange.Max; }

            set 

            { 

                iRange.UpdateMax( value );

                UpdateAttributes();

            }

        }

        public uint Checksum

        {

            get { return iChecksum; }

            set { iChecksum = value; }

        }

        public AddressRange AddressRange

        {

            get { return iRange; }

        }

        public TAttributes Attributes

        {

            get { return iAttributes; }

        }

		#endregion

        #region From System.Object

		public override string ToString()

		{

            StringBuilder ret = new StringBuilder();

            //

            ret.Append( iRange.ToString() );

            ret.Append( " " );

            ret.Append( base.ToString() );

            //

            return ret.ToString();

		}

        #endregion

        #region Internal methods

        private void UpdateAttributes()

        {

            // Remove XIP/RAM attrib before we work out the type...

            iAttributes &= ~TAttributes.EAttributeRAM;

            iAttributes &= ~TAttributes.EAttributeXIP;

            MemoryModel.TMemoryModelType type = MemoryModel.TypeByAddress( AddressStart );

            if ( type != MemoryModel.TMemoryModelType.EMemoryModelUnknown )

            {

                MemoryModel.TMemoryModelRegion region = MemoryModel.RegionByAddress( AddressStart, type );

                //

                if ( region == MemoryModel.TMemoryModelRegion.EMemoryModelRegionROM )

                {

                    iAttributes |= TAttributes.EAttributeXIP;

                }

                else if ( region == MemoryModel.TMemoryModelRegion.EMemoryModelRegionRAMLoadedCode )

                {

                    iAttributes |= TAttributes.EAttributeRAM;

                }

            }

        }

		#endregion

		#region Data members

        private readonly AddressRange iRange = new AddressRange();

        private uint iChecksum = 0;

        private TAttributes iAttributes = TAttributes.EAttributeNone;

		#endregion

	}

}