/*

* Copyright (c) 1997-1999 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:

*

*/

#include <eikhkeyt.h>

#include <eikpanic.h>

#include <coemain.h>

#include <barsread.h>

EXPORT_C CEikHotKeyTable::CEikHotKeyTable()

    : CArrayFixFlat<SEikHotKey> (4) // granularity of 4

    {

    }

EXPORT_C CEikHotKeyTable::~CEikHotKeyTable()

    {

    }

EXPORT_C TBool CEikHotKeyTable::HotKeyFromCommandId(TInt aCommandId,TInt& aKeycode,TInt& aModifiers) const

    {

    if (Count())

        {

        TInt i=0;

        const SEikHotKey* hotKey=&(*this)[0];

        while (i++<Count())

            {

            if (hotKey->iCommandId==aCommandId)

                {

                if (i<=iNumberPlain)

                    {

                    aKeycode=hotKey->iKeycode;

                    aModifiers=0;

                    }

                else

                    {

                    aKeycode=hotKey->iKeycode-('a'-1);

                    if (i>iNumberPlain+iNumberCtrl)

                        aModifiers=EModifierShift|EModifierCtrl;

                    else

                        aModifiers=EModifierCtrl;

                    }

                return(ETrue);

                }

            hotKey++;

            }

        }

    return(EFalse);

    }

EXPORT_C TInt CEikHotKeyTable::CommandIdFromHotKey(TInt aKeycode,TInt aModifiers) const

    {

	if (aModifiers&EModifierPureKeycode && aModifiers&EModifierCtrl)

		return 0;

    TInt start=0;

    TInt count=0;

    if (!aModifiers || aModifiers==EModifierShift)

        count=iNumberPlain;

    else

        {

        aKeycode+='a'-1;

        if (aModifiers==EModifierCtrl)

            {

            start=iNumberPlain;

            count=iNumberCtrl;

            }

        else if (aModifiers==(EModifierShift|EModifierCtrl))

            {

            start=iNumberPlain+iNumberCtrl;

            count=iNumberShiftCtrl;

            }

        }

    if (count && Count())

        {

        const SEikHotKey* hotKey=&(*this)[start];

        while (count--)

            {

            if (hotKey->iKeycode==aKeycode)

                return(hotKey->iCommandId);

            hotKey++;

            }

        }

    return(0);

    }

EXPORT_C void CEikHotKeyTable::AddItemL(TInt aCommandId,TInt aKeycode,TInt aModifiers)

    {

    TInt pos=0;

    TInt* pNumber=&iNumberPlain;

    switch (aModifiers)

        {

    case 0:

        break;

    case EModifierCtrl:

        pos=iNumberPlain;

        pNumber=&iNumberCtrl;

        break;

    case (EModifierShift|EModifierCtrl):

        pos=iNumberPlain+iNumberCtrl;

        pNumber=&iNumberShiftCtrl;

        break;

    default:

        User::Leave(KErrNotSupported);

        }

    SEikHotKey hotKey;

    hotKey.iCommandId=aCommandId;

    hotKey.iKeycode=aKeycode;

    InsertL(pos+*pNumber,hotKey);

    (*pNumber)++; // after the InsertL succeeds

    }

EXPORT_C void CEikHotKeyTable::RemoveItem(TInt aCommandId)

    {

    TInt i=0;

    FOREVER

        {

        if (i==Count())

            Panic(EEikPanicNoHotKeyToRemove);

        SEikHotKey& hotKey=(*this)[i];

        if (hotKey.iCommandId==aCommandId)

            {

            if (i<iNumberPlain)

                iNumberPlain--;

            else if (i<iNumberPlain+iNumberCtrl)

                iNumberCtrl--;

            else

                iNumberShiftCtrl--;

            break;

            }

        i++;

        }

    Delete(i);

    }

EXPORT_C void CEikHotKeyTable::ConstructFromResourceL(TInt aResourceId)

    {

    TResourceReader reader;

    CCoeEnv::Static()->CreateResourceReaderLC(reader,aResourceId);

    iNumberPlain=reader.ReadInt16();

    if (iNumberPlain)

        {

	    const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();

	    reader.Advance(iNumberPlain*sizeof(SEikHotKey));

	    AppendL(ptr,iNumberPlain);

        }

    iNumberCtrl=reader.ReadInt16();

    if (iNumberCtrl)

        {

	    const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();

	    reader.Advance(iNumberCtrl*sizeof(SEikHotKey));

	    AppendL(ptr,iNumberCtrl);

        }

    iNumberShiftCtrl=reader.ReadInt16();

    if (iNumberShiftCtrl)

        {

	    const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();

	    reader.Advance(iNumberShiftCtrl*sizeof(SEikHotKey));

	    AppendL(ptr,iNumberShiftCtrl);

        }

    CleanupStack::PopAndDestroy();

    }

EXPORT_C void CEikHotKeyTable::Reset()

    {

	iNumberPlain=iNumberCtrl=iNumberShiftCtrl=0;

    CArrayFixFlat<SEikHotKey>::Reset();

    }