/*

* 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;

using SymbianStructuresLib.MemoryModel;

namespace SymbianStructuresLib.CodeSegments

{

    public class CodeSegDefinition : AddressRange

	{

        #region Enumerations

        [Flags]

        public enum TAttributes

        {

            EAttributeNone = 0,

            EAttributeXIP = 1,

            EAttributeRAM = 2,

        }

        #endregion

        #region Constructors

		public CodeSegDefinition()

            : this( string.Empty )

		{

		}

		public CodeSegDefinition( string aFileName )

            : this( aFileName, 0, 0 )

        {

		}

        public CodeSegDefinition( string aFileName, uint aBase, uint aLimit )

            : base( aBase, aLimit )

        {

            iFileName = aFileName;

        }

        #endregion

        #region Properties

        public uint Checksum

        {

            get { return iChecksum; }

            set { iChecksum = value; }

        }

        public string FileName

        {

            get { return iFileName; }

            set { iFileName = value; }

        }

        public uint Base

        {

            get { return base.Min; }

            set { base.Min = value; }

        }

        public uint Limit

        {

            get { return base.Max; }

            set { base.Max = value; }

        }

        public TAttributes Attributes

        {

            get { return iAttributes; }

        }

		#endregion

        #region From AddressRange

        protected override void OnChanged()

        {

            base.OnChanged();

            //

            UpdateAttributes();

        }

        #endregion

        #region From System.Object

		public override string ToString()

		{

            StringBuilder ret = new StringBuilder();

            //

            ret.Append( base.ToString() );

            ret.Append( " " );

            ret.Append( iFileName );

            //

            return ret.ToString();

		}

        public override int GetHashCode()

        {

            return iFileName.ToUpper().GetHashCode();

        }

        public override bool Equals( object aObject )

        {

            bool ret = false;

            //

            if ( aObject is CodeSegDefinition )

            {

                CodeSegDefinition other = (CodeSegDefinition) aObject;

                //

                string myName = this.FileName;

                string otherName = other.FileName;

                //

                ret = string.Compare( myName, otherName, StringComparison.CurrentCultureIgnoreCase ) == 0;

            }

            else

            {

                ret = base.Equals( aObject );

            }

            //

            return ret;

        }

        #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 = MMUtilities.TypeByAddress( Base );

            if ( type != MemoryModel.TMemoryModelType.EMemoryModelUnknown )

            {

                MemoryModel.TMemoryModelRegion region = MMUtilities.RegionByAddress( Base, type );

                //

                if ( region == MemoryModel.TMemoryModelRegion.EMemoryModelRegionROM )

                {

                    iAttributes |= TAttributes.EAttributeXIP;

                }

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

                {

                    iAttributes |= TAttributes.EAttributeRAM;

                }

            }

        }

		#endregion

		#region Data members

        private string iFileName = string.Empty;

        private uint iChecksum = 0;

        private TAttributes iAttributes = TAttributes.EAttributeNone;

		#endregion

	}

}