/*

* Copyright (c) 2004-2008 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.Collections.Generic;

using System.Text;

using System.IO;

using SymbianUtils;

using SymbianUtils.Range;

using SymbianUtils.Tracer;

using SymbianUtils.FileTypes;

using SymbianStructuresLib.Arm;

using SymbianStructuresLib.Arm.Instructions;

using SymbianStructuresLib.Debug.Code;

using SymbianStructuresLib.CodeSegments;

using SymbianDebugLib.PluginAPI;

using SymbianDebugLib.PluginAPI.Types;

using SymbianDebugLib.PluginAPI.Types.Code;

using SymbianCodeLib.QueryAPI;

using SymbianCodeLib.Relocator;

using SymbianCodeLib.DbgEnginePlugin;

using SymbianCodeLib.SourceManagement.Source;

using SymbianCodeLib.SourceManagement.Provisioning;

namespace SymbianCodeLib.DbgEnginePlugin

{

    public class CodeView : DbgViewCode

    {

        #region Constructors

        internal CodeView( string aToken, CodePlugin aPlugin )

            : base( aToken, aPlugin )

		{

            iRelocator = new CodeRelocator( aPlugin );

            iQueryAPI = new CodeQueryAPI( iRelocator );

        }

		#endregion

        #region From DbgPluginView

        public override bool Contains( uint aAddress )

        {

            bool ret = iQueryAPI.Contains( aAddress );

            return ret;

        }

        public override bool Activate( CodeSegDefinition aCodeSegment )

        {

            bool activated = ActivateAndGetCollection( aCodeSegment ) != null;

            return activated;

        }

        public override bool Deactivate( CodeSegDefinition aCodeSegment )

        {

            return iRelocator.Deactivate( aCodeSegment );

        }

        public override bool IsReady

        {

            get

            {

                // For a view to be ready we must have at least one

                // activated, i.e. 'ready' symbol source.

                int count = 0;

                // Check with dynamic activations

                foreach ( CodeSourceAndCollection pair in iRelocator )

                {

                    if ( pair.Source.TimeToRead == CodeSource.TTimeToRead.EReadWhenPriming )

                    {

                        ++count;

                        break; // No need to count anymore

                    }

                }

                // Try to find any fixed activation entries

                if ( count == 0 )

                {

                    CodeSourceManager allSources = this.SourceManager;

                    foreach ( CodeSource source in allSources )

                    {

                        count += source.CountActivated;

                        if ( count > 0 )

                        {

                            break;

                        }

                    }

                }

                return ( count > 0 );

            }

        }

        #endregion

        #region From DbgViewCode

        public override CodeCollection ActivateAndGetCollection( CodeSegDefinition aCodeSegment )

        {

            CodeCollection ret = iRelocator.Activate( aCodeSegment );

            return ret;

        }

        protected override bool DoGetInstructions( uint aAddress, TArmInstructionSet aInstructionSet, int aCount, out IArmInstruction[] aInstructions )

        {

            bool ret = iQueryAPI.GetInstructions( aAddress, aInstructionSet, aCount, out aInstructions );

            return ret;

        }

        public override IArmInstruction ConvertToInstruction( uint aAddress, TArmInstructionSet aInstructionSet, uint aRawValue )

        {

            CodePlugin plugin = this.Plugin;

            IArmInstruction[] ret = plugin.ProvisioningManager.InstructionLibrary.ConvertToInstructions( aInstructionSet, new uint[ 1 ] { aRawValue }, aAddress );

            System.Diagnostics.Debug.Assert( ret != null && ret.Length == 1 );

            return ret[ 0 ];

        }

        #endregion

        #region API

        #endregion

		#region Properties

        internal CodeSourceManager SourceManager

        {

            get { return Plugin.SourceManager; }

        }

        #endregion

        #region Internal methods

        internal CodePlugin Plugin

        {

            get { return base.Engine as CodePlugin; }

        }

        #endregion

        #region From DisposableObject

        protected override void CleanupManagedResources()

        {

            try

            {

                base.CleanupManagedResources();

            }

            finally

            {

                iRelocator.Dispose();

            }

        }

        #endregion

        #region Data members

        private readonly CodeQueryAPI iQueryAPI;

        private readonly CodeRelocator iRelocator;

        #endregion

    }

}