diff -r 4ea6f81c838a -r 0e9bb658ef58 mulwidgets/muldatamodel/src/mulvisualitem.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mulwidgets/muldatamodel/src/mulvisualitem.cpp	Wed Sep 01 12:23:18 2010 +0100
@@ -0,0 +1,374 @@
+/*
+* Copyright (c) 2007-2008 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:  Visual item class
+*
+*/
+
+
+#include <mul/mulvisualitem.h>
+
+#include <mul/imulvarianttype.h>
+#include <mul/mulvarianttype.h>
+
+#include <osn/ustring.h>
+#include <stdexcept>
+
+#include <e32math.h>	// for Pow function
+#include "mul/mulmodelutility.h"
+
+using namespace osncore;
+using namespace std;
+
+namespace Alf
+    {
+// ---------------------------------------------------------------------------
+// Defination of class MulAttribute
+// ---------------------------------------------------------------------------
+//
+class MulVisualItem::MulAttribute
+    {
+public: //Constructor and destructor
+
+	/**
+	 * C++ constructor.
+	 */
+	MulAttribute():mValue(NULL),mFlag(0)
+		{
+		}
+		
+	/**
+	 * C++ constructor.
+	 *
+	 * @param aValue value of the attribute
+	 * @param aAttributeFlags property of this attribute
+	 */
+	 MulAttribute( IMulVariantType* aValue, int aAttributeFlags = 0 )
+	 	{
+	 	mValue = aValue;
+	 	mFlag = aAttributeFlags;
+	 	}
+
+	/**
+	 * Copy constructor.
+	 *
+	 * @param aAttribute existing attribute
+	 */
+	MulAttribute( const MulAttribute& aAttribute )
+	 	{
+	 	mValue = aAttribute.mValue->Clone().release();
+	 	mFlag = aAttribute.mFlag;
+	 	}
+
+	/**
+	 * Destructor.
+	 */
+	~MulAttribute()
+		{
+		delete mValue;
+		}	
+	
+public: //data
+     
+	IMulVariantType* mValue ; //own    
+    int mFlag ; 
+    
+    };
+    
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT MulVisualItem::MulVisualItem( )
+	{				
+	// Clearing dirty bit flags to 0;
+	mBitAttrFlag1 = 0;
+	mBitAttrFlag2 = 0;
+	}
+
+// ---------------------------------------------------------------------------
+// Copy Constructor
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT MulVisualItem::MulVisualItem( const MulVisualItem& aVisualItem )
+	{	
+	map<mulvisualitem::TVisualAttribute,MulAttribute*> mapToCopy = aVisualItem.mVisualItem;
+	map<mulvisualitem::TVisualAttribute,MulAttribute*>::iterator itr;
+	for( itr = mapToCopy.begin(); itr!= mapToCopy.end(); ++itr )
+		{
+		mVisualItem[itr->first] = new (EMM) MulAttribute( *itr->second );
+		}
+	mBitAttrFlag1 = aVisualItem.mBitAttrFlag1;
+	mBitAttrFlag2 = aVisualItem.mBitAttrFlag2;
+	}
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT MulVisualItem::~MulVisualItem()
+	{
+	map<mulvisualitem::TVisualAttribute,MulAttribute* >::iterator itr;
+	for( itr = mVisualItem.begin(); itr!= mVisualItem.end(); ++itr )
+		{
+		delete itr->second;
+		itr->second = NULL;
+		}
+	mVisualItem.clear();
+	}
+
+// ---------------------------------------------------------------------------
+// Add new attributes to visual item
+// ---------------------------------------------------------------------------
+//
+//OSN_EXPORT void MulVisualItem::SetAttribute( mulvisualitem::TVisualAttribute aName, 
+//											 const UString& aValue, int aAttributeFlags )
+//	{
+//	auto_ptr<MulVariantType> variantdata(new (EMM) MulVariantType( aValue ));
+//	
+//	SetAttribute( aName, variantdata.release(),aAttributeFlags,EDoesOwn);
+//	}
+
+// ---------------------------------------------------------------------------
+// Add new attributes to visual item
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT void MulVisualItem::SetAttribute( mulvisualitem::TVisualAttribute aName, 
+                                             const TDesC& aValue, int aAttributeFlags )
+    {
+    auto_ptr<MulVariantType> variantdata(new (EMM) MulVariantType( aValue ));
+    
+    SetAttribute( aName, variantdata.release(),aAttributeFlags,EDoesOwn);
+    }
+
+
+// ---------------------------------------------------------------------------
+// Add new attributes to visual item
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT void MulVisualItem::SetAttribute( mulvisualitem::TVisualAttribute aName, 
+											  int aValue,int aAttributeFlags )
+	{	
+	auto_ptr<MulVariantType> variantdata(new ( EMM ) MulVariantType( aValue ));
+		
+	SetAttribute(aName,variantdata.release(),aAttributeFlags,EDoesOwn);	
+	}
+
+
+// ---------------------------------------------------------------------------
+// Add new attributes to visual item
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT void MulVisualItem::SetAttribute( mulvisualitem::TVisualAttribute aName, IMulVariantType* aValue, 
+		  									   int aAttributeFlags ,
+		  									   TAttributeOwnership /*aAttributeOwership*/ )
+	{
+	map<mulvisualitem::TVisualAttribute,MulAttribute* >::iterator findIter = mVisualItem.find( aName );
+	if( findIter != mVisualItem.end() )
+		{
+		delete findIter->second;
+		findIter->second = NULL;
+		mVisualItem.erase( aName );
+		}
+	mVisualItem[aName] = new (EMM) MulAttribute(aValue,aAttributeFlags );
+	SetDirty(aName, true);
+	}
+
+
+// ---------------------------------------------------------------------------
+// Is the input attribute dirty, to be queried before a redraw
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT bool MulVisualItem::IsDirty(mulvisualitem::TVisualAttribute aAttr) const
+{
+	int i = (int)aAttr;
+	TReal base  = 2.0;
+	TReal r = 0.0;
+	TReal val = 0.0;
+	TInt err = KErrNone;
+
+	// If mBitAttrflag is binary 101, AND'ing it with 100(attribute 3) will 
+	// set 100 to return true for attribute 3 being dirty
+
+	// if attribute index <18 check against mBitAttrFlag1, else check
+	// against mBitAttrFlag2
+	if(i < 18)
+		{
+		val = i;
+		err = Math::Pow(r, base, val);
+		if(KErrNone != err)
+			return true;
+			
+		return mBitAttrFlag1 & (int)r;
+		}
+	else
+		{
+		val = (int)(mulvisualitem::KMul_n) - i;
+		err = Math::Pow(r, base, val);
+		if(KErrNone != err)
+			return true;
+		
+		return mBitAttrFlag2 & (int)r;
+		}
+    
+}
+ 
+
+// ---------------------------------------------------------------------------
+// Set the attribute as dirty in this Visual item based on input flag
+// ---------------------------------------------------------------------------
+//
+void MulVisualItem::SetDirty(mulvisualitem::TVisualAttribute aAttr, bool aDirty)
+{
+	int i = (int)aAttr;
+	TReal base  = 2.0;
+	TReal r = 0.0;
+	TReal val = i;
+	TInt err = KErrNone;
+	// If mBitAttrflag is binary 001, OR'ing it with 100(attribute 3) will 
+	// set 101 to set bit for attribute 3 as 1 in dirty flag
+	if(aDirty)
+		{
+		// if attribute index <18 operate on mBitAttrFlag1
+		// else operate against mBitAttrFlag1
+		if(i < 18)
+			{ 
+			err = Math::Pow(r,base,val);
+			mBitAttrFlag1 |= (int)r;
+			}
+			else
+			{
+			err = Math::Pow(r,base,(TReal)((int)(mulvisualitem::KMul_n) - i));
+			mBitAttrFlag2 |= (int)r;
+			}
+		}
+	else
+	{
+		// if attribute index <18 operate on mBitAttrFlag1
+		// else operate against mBitAttrFlag1
+		if(i < 18)
+		{
+			err = Math::Pow(r,base,val);
+			mBitAttrFlag1 &= ~(int)r;
+		}
+		else
+		{
+			err = Math::Pow(r, base,(TReal)((int)(mulvisualitem::KMul_n) - i));
+			mBitAttrFlag2 &= ~(int)r;
+		}
+	}
+	if(KErrNone != err)
+		throw std::invalid_argument("Error setting dirty flag for attribute"); 
+}
+
+
+// ---------------------------------------------------------------------------
+// ResetDirtyAttribute
+// ---------------------------------------------------------------------------
+//
+void MulVisualItem::ResetDirtyAttribute(const MulVisualItem& aVisualItem)
+{
+	mBitAttrFlag1 = aVisualItem.mBitAttrFlag1;
+	mBitAttrFlag2 = aVisualItem.mBitAttrFlag2;
+}
+// ---------------------------------------------------------------------------
+// Attribute
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT IMulVariantType* MulVisualItem::Attribute( mulvisualitem::TVisualAttribute aName ) const
+	{
+	map<mulvisualitem::TVisualAttribute,MulAttribute* >::const_iterator findIter = mVisualItem.find( aName );
+	if( findIter != mVisualItem.end() )
+		{		
+		MulAttribute* attribute = findIter->second;
+		IMulVariantType* attributeValue = attribute->mValue;
+		return  attributeValue;
+		}
+	else
+		{
+		//throw std::invalid_argument("Invalid attribute name.");
+		return NULL;
+		}
+	}
+
+// ---------------------------------------------------------------------------
+// AttributeAsInt
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT int MulVisualItem::AttributeAsInt( mulvisualitem::TVisualAttribute aName ) const 
+	{
+	IMulVariantType* attributeValue = Attribute(aName);
+	if( attributeValue ) 
+	    {
+	    return attributeValue->integer();
+	    }
+	throw std::invalid_argument("Invalid attribute name."); 
+	}
+
+// ---------------------------------------------------------------------------
+// AttributeAsString
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT const TDesC& MulVisualItem::AttributeAsString( mulvisualitem::TVisualAttribute aName ) const
+	{
+	IMulVariantType* attributeValue = Attribute(aName);
+    if( attributeValue ) 
+        {
+        return attributeValue->DesC();
+        }
+	throw std::invalid_argument("Invalid attribute name."); 
+	}
+
+// ---------------------------------------------------------------------------
+// ExistingAttributes
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT const std::vector<mulvisualitem::TVisualAttribute> MulVisualItem::Attributes() const 
+	{
+	map<mulvisualitem::TVisualAttribute,MulAttribute* >::const_iterator itr;
+	std::vector<mulvisualitem::TVisualAttribute> attributesName;
+	for( itr = mVisualItem.begin(); itr!= mVisualItem.end(); ++itr )
+		{
+		attributesName.push_back( itr->first );
+		}
+	return attributesName;
+	}
+
+// ---------------------------------------------------------------------------
+// Flag
+// ---------------------------------------------------------------------------
+//
+int MulVisualItem::Flag( mulvisualitem::TVisualAttribute aName ) 
+    {
+     MulAttribute* attribute = mVisualItem.find( aName )->second;
+     return attribute->mFlag;
+    }
+
+// ---------------------------------------------------------------------------
+// RemoveAttribute
+// ---------------------------------------------------------------------------
+//
+void MulVisualItem::RemoveAttribute( mulvisualitem::TVisualAttribute aName )
+    {
+    map<mulvisualitem::TVisualAttribute,MulAttribute* >::iterator findIter = mVisualItem.find( aName );
+    if( findIter != mVisualItem.end() )
+		{
+		delete findIter->second;
+		findIter->second = NULL;
+		mVisualItem.erase( aName );
+		}
+    }
+
+    }// namespace Alf	
+
+//End of file