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/*
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* Copyright (c) 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: Freestyle tree node implementation.
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*
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*/
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#include "emailtrace.h"
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#include "fstreenode.h"
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#include "fstreenodevisualizer.h"
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#include "fsgenericpanic.h"
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Two-phased constructor.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CFsTreeNode* CFsTreeNode::NewL( CFsTreeNode& aParent,
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MFsTreeItemData& aData, MFsTreeNodeVisualizer& aVisualizer )
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{
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FUNC_LOG;
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CFsTreeNode* self = new( ELeave ) CFsTreeNode( &aParent, aData,
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aVisualizer );
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CleanupStack::PushL( self );
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self->ConstructL( );
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CleanupStack::Pop( self );
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return self;
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}
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// ---------------------------------------------------------------------------
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// C++ destructor.
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// ---------------------------------------------------------------------------
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//
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CFsTreeNode::~CFsTreeNode()
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{
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FUNC_LOG;
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iChildren.Close();
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}
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// ---------------------------------------------------------------------------
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// Gets node visualizer.
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// ---------------------------------------------------------------------------
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//
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MFsTreeNodeVisualizer* CFsTreeNode::NodeVisualizer() const
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{
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FUNC_LOG;
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return ( static_cast<MFsTreeNodeVisualizer*>(iVisualizer) );
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}
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// ---------------------------------------------------------------------------
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// Inserts child with given index.
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// ---------------------------------------------------------------------------
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//
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TInt CFsTreeNode::InsertChild( CFsTreeItem* aItem, const TInt aIndex )
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{
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FUNC_LOG;
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TInt childIndex = 0;
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if ( aIndex >= iChildren.Count() || aIndex == KFsTreeChildIndexLast )
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{
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childIndex = iChildren.Append( aItem );
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}
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else
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{
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childIndex = iChildren.Insert( aItem, aIndex );
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}
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return childIndex;
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}
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// ---------------------------------------------------------------------------
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// Removes child with given index.
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// ---------------------------------------------------------------------------
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//
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CFsTreeItem* CFsTreeNode::RemoveChild( const TInt aIndex )
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{
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FUNC_LOG;
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CFsTreeItem* childItem = NULL;
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childItem = Child( aIndex );
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if (childItem)
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{
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iChildren.Remove( aIndex );
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}
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return childItem;
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}
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// ---------------------------------------------------------------------------
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// Gets child with given index (position).
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// ---------------------------------------------------------------------------
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//
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CFsTreeItem* CFsTreeNode::Child( const TInt aIndex ) const
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{
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FUNC_LOG;
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CFsTreeItem* treeItem = NULL;
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if (( aIndex < iChildren.Count() ) && ( aIndex >= 0 ))
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{
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treeItem = iChildren[aIndex];
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}
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else
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{
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FsGenericPanic(EFsListPanicIndexOutOfRange);
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}
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return treeItem;
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}
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// ---------------------------------------------------------------------------
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// Gets an index of desired child tree item.
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// ---------------------------------------------------------------------------
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//
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TInt CFsTreeNode::Index( const CFsTreeItem* aItem ) const
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{
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FUNC_LOG;
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return iChildren.Find(aItem);
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}
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// ---------------------------------------------------------------------------
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// Returns the number of children for the node.
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// ---------------------------------------------------------------------------
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//
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TUint CFsTreeNode::CountChildren() const
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{
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FUNC_LOG;
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return iChildren.Count();
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}
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// ---------------------------------------------------------------------------
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// Returns recursively the number of all children under the node
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// ---------------------------------------------------------------------------
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//
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TUint CFsTreeNode::CountChildrenRecursively() const
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{
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FUNC_LOG;
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TInt count ( 0 );
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for ( TInt i = 0; i < iChildren.Count(); i++ )
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{
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count++;
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count += iChildren[i]->CountChildrenRecursively();
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}
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return count;
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}
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// ---------------------------------------------------------------------------
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// Checks if tree item is a node.
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// ---------------------------------------------------------------------------
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TBool CFsTreeNode::IsNode() const
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{
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FUNC_LOG;
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return ETrue;
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}
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// ---------------------------------------------------------------------------
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// Return pointer to node object. Returned value is @c NULL, if the item
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// is not derived from @c CFsTreeNode.
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// ---------------------------------------------------------------------------
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//
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CFsTreeNode* CFsTreeNode::Node()
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{
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FUNC_LOG;
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return this;
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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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CFsTreeNode::CFsTreeNode( CFsTreeNode* aParent, MFsTreeItemData& aData,
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MFsTreeNodeVisualizer& aVisualizer )
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: CFsTreeItem( aParent, aData, aVisualizer )
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{
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FUNC_LOG;
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}
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// ---------------------------------------------------------------------------
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// Second phase constructor.
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// ---------------------------------------------------------------------------
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//
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void CFsTreeNode::ConstructL( )
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{
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FUNC_LOG;
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}
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