uifw/AvKon/aknhlist/src/akntreeleaf.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:00:49 +0200
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/*
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* Copyright (c) 2006, 2007 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:  Implementation for CAknTreeLeaf class.
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*
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*/
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#include "akntreeleaf.h"
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const TUint KDefaultLeafFlags = NULL;
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Destructor.
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// ---------------------------------------------------------------------------
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//
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CAknTreeLeaf::~CAknTreeLeaf()
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    {
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// ---------------------------------------------------------------------------
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//
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CAknTreeLeaf* CAknTreeLeaf::Leaf()
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    {
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    return this;
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    }
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const CAknTreeLeaf* CAknTreeLeaf::Leaf() const
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    {
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    return this;
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Checks whether the leaf is set marked.
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// ---------------------------------------------------------------------------
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//
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TBool CAknTreeLeaf::IsMarked() const
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    {
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    return ( iFlags & EMarked ) ? ETrue : EFalse;
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Changes the state of the marked flag, if marking change is not disabled.
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// ---------------------------------------------------------------------------
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//
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void CAknTreeLeaf::SetMarked( TBool aMarked )
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    {
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    if ( !( iFlags & EMarkingDisabled ) )
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        {
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        if ( aMarked )
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            {
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            iFlags |= EMarked;
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            }
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        else
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            {
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            iFlags &= ~EMarked;
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            }
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        }
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Checks whether marking is enabled.
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// ---------------------------------------------------------------------------
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//
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TBool CAknTreeLeaf::IsMarkable() const
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    {
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    return ( iFlags & EMarkingDisabled ) ? EFalse : ETrue;
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Changes the state of the marking enabled flag.
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// ---------------------------------------------------------------------------
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//
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void CAknTreeLeaf::SetMarkable( TBool aMarkable )
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    {
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    if ( aMarkable )
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        {
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        iFlags &= ~EMarkingDisabled;
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        }
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    else
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        {
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        iFlags |= EMarkingDisabled;
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        }
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Checks whether the leaf is set persistent.
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// ---------------------------------------------------------------------------
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//
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TBool CAknTreeLeaf::IsPersistent() const
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    {
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    return ( iFlags & EPersistent ) ? ETrue : EFalse;
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Changes the state of the persistent flag.
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// ---------------------------------------------------------------------------
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//
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void CAknTreeLeaf::SetPersistent( TBool aPersistent )
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    {
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    if ( aPersistent )
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        {
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        iFlags |= EPersistent;
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        }
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    else
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        {
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        iFlags &= ~EPersistent;
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        }
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Implementation for pure virtual function returns always false, as a leaf
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// can not have any descendants.
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// ---------------------------------------------------------------------------
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//
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TBool CAknTreeLeaf::HasPersistentDescendants() const
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    {
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    return EFalse;
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    }
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// ---------------------------------------------------------------------------
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// From class CAknTreeItem.
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// Checks whether the item can be removed from the tree when its parent node
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// is being collapsed.
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// ---------------------------------------------------------------------------
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//
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TBool CAknTreeLeaf::IsRemovableFromCollapsedNode() const
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    {
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    return !( IsMarked() || IsPersistent() );
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    }
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// ---------------------------------------------------------------------------
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// Default C++ constructor.
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// ---------------------------------------------------------------------------
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//
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CAknTreeLeaf::CAknTreeLeaf()
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    : iFlags( KDefaultLeafFlags )
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    {
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    }
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// ---------------------------------------------------------------------------
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// C++ constructor.
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// ---------------------------------------------------------------------------
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//
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CAknTreeLeaf::CAknTreeLeaf( TUint32 aFlags )
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    : iFlags( aFlags )
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    {
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    }
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// ---------------------------------------------------------------------------
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// Returns flags set for the leaf.
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// ---------------------------------------------------------------------------
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//
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TUint32 CAknTreeLeaf::Flags() const
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    {
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    return iFlags;
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    }
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// ---------------------------------------------------------------------------
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// Sets flags for the leaf.
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// ---------------------------------------------------------------------------
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//
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void CAknTreeLeaf::SetFlags( TUint32 aFlags )
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    {
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    iFlags = aFlags;
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    }
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