textinput/peninputcommonctrls/src/peninputdropdownlist/peninputpages.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:02:04 +0200
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Revision: 201003 Kit: 201005
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/*
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* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0""
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  page manager,which is used by drop down list
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*
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*/
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#include "peninputpages.h"
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// ======== MEMBER FUNCTIONS ========
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// Implementation of Class CPages 
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// -----------------------------------------------------------------------------
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// CPages::NewL
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// factory function
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CPages* CPages::NewL()
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    {
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    CPages* self = new (ELeave) CPages();
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop();
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CPages::~CPages
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// factory function
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CPages::~CPages()    
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    {
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    iFirstIndexList.Close();
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    iLastIndexList.Close();
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    }
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// -----------------------------------------------------------------------------
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// CPages::NewL
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// 2nd construct function
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CPages::ConstructL()
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    {
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    Reset();
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    }
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// -----------------------------------------------------------------------------
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// CPages::Reset
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// reset page in the page list
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CPages::Reset()
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    {
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    iFirstIndexList.Reset();
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    iLastIndexList.Reset();
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    }
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// -----------------------------------------------------------------------------
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// CPages::PageCount
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// get page count
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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TInt CPages::PageCount() const
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    {
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    return iLastIndexList.Count(); 
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    }
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// -----------------------------------------------------------------------------
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// CPages::AddPage
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// add one page into the page list
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CPages::AddPage(const TInt aFirstIndex, const TInt aLastIndex)
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    {
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    if ( aFirstIndex == aLastIndex )  
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        {
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        return;
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        }        
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    const TInt index = iLastIndexList.Find(aLastIndex);
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    if ( index == KErrNotFound)
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        {
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        iLastIndexList.Append(aLastIndex);  
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        iFirstIndexList.Append(aFirstIndex);  
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        }     
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    }
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// -----------------------------------------------------------------------------
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// CPages::GetPreviousIndex
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// get the previous page
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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TBool CPages::GetPreviousIndex(const TInt aLastIndex, 
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                               TInt& aFirstIndexOfPrevious, 
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                               TInt& aLastIndexOfPrevious) const
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    {
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    const TInt index = iLastIndexList.Find( aLastIndex );
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    if ( index != KErrNotFound ) // If found it
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        {         
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        if ( index > 0 ) // If not the first page
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            {
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            aFirstIndexOfPrevious = iFirstIndexList[index-1];
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            aLastIndexOfPrevious = iLastIndexList[index-1];
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            }
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        else // If is the first page
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            {
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            aFirstIndexOfPrevious = iFirstIndexList[0];
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            aLastIndexOfPrevious = iLastIndexList[0];                        
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            }
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        return ETrue;         
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        }
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    else
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        {
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        return EFalse;
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        }        
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    }
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// -----------------------------------------------------------------------------
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// CPages::GetPageIndexByPos
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// get the page of assigned position
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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TBool CPages::GetPageIndexByPos(const TInt aPos, 
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                                TInt& aFirstIndex, 
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                                TInt& aLastIndex) const
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    {
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    if ( ( aPos < 0 ) || ( aPos >= iLastIndexList.Count() ) )
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        {
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        return EFalse;        
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        }
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    aLastIndex = iLastIndexList[aPos];    
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    aFirstIndex = iFirstIndexList[aPos];
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    return ETrue;
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    }
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// End Of File