--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uigraphics/AknIcon/src/AknIconLocationInfo.cpp	Thu Dec 17 09:14:12 2009 +0200
@@ -0,0 +1,223 @@
+/*
+* Copyright (c) 2002 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 FILES
+
+#include <e32std.h>
+#include <mifconvdefs.h>
+#include "AknIconLocationInfo.h"
+#include "AknIconLoader.h"
+
+
+// CONSTANTS
+
+// ================= MEMBER FUNCTIONS ==========================================
+
+CAknIconLocationInfo::CAknIconLocationInfo()
+    {
+    }
+
+CAknIconLocationInfo::CAknIconLocationInfo( const TDesC& aFileName )
+    {
+    // This constructor is used when the object is instantiated in stack,
+    // so CBase's zero initialization is not done.
+    Mem::FillZ( this, sizeof( CAknIconLocationInfo ) );
+    iFileNameRef = &aFileName;
+    }
+
+CAknIconLocationInfo::~CAknIconLocationInfo()
+    {
+    delete iFileName;
+    delete [] iLocations;
+    delete iSharedOffsets;
+    }
+
+CAknIconLocationInfo* CAknIconLocationInfo::NewL(
+    const TDesC& aFileName,
+    MifHeader::CInstance& aOffsets )
+    {
+    CAknIconLocationInfo* item = new( ELeave ) CAknIconLocationInfo;
+    CleanupStack::PushL( item );
+    item->ConstructL( aFileName, aOffsets );
+    CleanupStack::Pop();
+    return item;
+    }
+
+CAknIconLocationInfo* CAknIconLocationInfo::NewL(
+    const TDesC& aFileName,
+    const TDesC8& aOffsetArray )
+    {
+    CAknIconLocationInfo* item = new( ELeave ) CAknIconLocationInfo;
+    CleanupStack::PushL( item );
+    item->ConstructL( aFileName, aOffsetArray );
+    CleanupStack::Pop();
+    return item;
+    }
+
+CAknIconLocationInfo* CAknIconLocationInfo::NewL(
+    const TDesC& aFileName )
+    {
+    CAknIconLocationInfo* item = new( ELeave ) CAknIconLocationInfo;
+    CleanupStack::PushL( item );
+    item->ConstructL( aFileName );
+    CleanupStack::Pop();
+    return item;
+    }
+
+void CAknIconLocationInfo::ConstructL(
+    const TDesC& aFileName,
+    MifHeader::CInstance& aOffsets )
+    {
+    iFileName = aFileName.AllocL();
+    
+    iSharedOffsets = MifHeader::CInstance::NewL(aOffsets.Ref());
+    iCount = iSharedOffsets->indicies().Count();
+    }
+
+void CAknIconLocationInfo::ConstructL(
+    const TDesC& aFileName,
+    const TDesC8& aOffsetArray )
+    {
+    iFileName = aFileName.AllocL();
+
+    if ( aOffsetArray.Size() % sizeof( TMifBitmapOffsetElement ) )
+        {
+        User::Leave( KErrCorrupt );
+        }
+
+    iCount = aOffsetArray.Size() / sizeof(TMifBitmapOffsetElement);
+    
+    // iCount must always be even number
+    if (iCount % 2)
+        {
+        User::Leave( KErrCorrupt );   
+        }
+
+    iLocations = new( ELeave ) TInt[iCount];
+
+    TMifBitmapOffsetElement* ptr = (TMifBitmapOffsetElement*)aOffsetArray.Ptr();
+
+    for ( TInt i = 0 ; i < iCount ; i++ )
+        {
+        iLocations[i] = ptr->iOffset; // copy the offset variable in iLocations
+        ptr++;
+        }
+    }
+
+void CAknIconLocationInfo::ConstructL( const TDesC& aFileName )
+    {
+    iFileName = aFileName.AllocL();
+    }
+
+// -----------------------------------------------------------------------------
+// CAknIconLocationInfo::LinearOrder
+// -----------------------------------------------------------------------------
+//
+TInt CAknIconLocationInfo::LinearOrder(
+    const CAknIconLocationInfo& aFirst,
+    const CAknIconLocationInfo& aSecond )
+    {
+    const TDesC* firstFileName = aFirst.iFileNameRef ?
+        aFirst.iFileNameRef : aFirst.iFileName;
+
+    const TDesC* secondFileName = aSecond.iFileNameRef ?
+        aSecond.iFileNameRef : aSecond.iFileName;
+
+    return firstFileName->CompareF( *secondFileName );
+    }
+
+// -----------------------------------------------------------------------------
+// CAknIconLocationInfo::GetIconLocation
+// -----------------------------------------------------------------------------
+//
+TInt CAknIconLocationInfo::GetIconLocation(
+    TInt16& aBitmapId, TInt16& aMaskId ) const
+    {
+    if ( !iLocations && !iSharedOffsets )
+        {
+        // V1 MIF file. IDs do not need to be changed.
+        return KErrNone;
+        }
+    
+    TInt16 bitmapId;
+    
+    // MBG indexes start from KMifIdFirst.
+    TInt bitmapIndex = aBitmapId - KMifIdFirst;
+
+    if ( bitmapIndex < 0 ||
+         bitmapIndex >= iCount )
+        {
+        return KErrEof;
+        }
+
+    TInt offset;
+    if (iLocations)
+        {
+        // Fetch the icon offset info from the offset array that is
+        // retrieved from the MIF file
+        offset = iLocations[bitmapIndex];
+        }
+    else
+        {
+        // Fetch the icon offset info from the offset array that is
+        // stored in the shared MifHeader instance
+        offset = iSharedOffsets->indicies()[bitmapIndex].iOffset;
+        }
+            
+    // Negative or zero offset means that it is a MBM icon,
+    // and the real icon index is then that offset changed to positive.
+    if ( offset <= 0 )
+        {
+        bitmapId = -offset;
+        }
+    // Positive offset means that it is a MIF icon,
+    // the original icon index (from MBG file) should be used in that case.
+    else
+        {
+        bitmapId = aBitmapId;
+        }
+
+    // Mask used?
+    if ( aMaskId >= 0 )
+        {
+        // MBG indexes start from KMifIdFirst.
+        TInt maskIndex = aMaskId - KMifIdFirst;
+
+        if ( maskIndex < 0 ||
+             maskIndex >= iCount )
+            {
+            return KErrEof;
+            }
+
+        if (iLocations)
+            offset = iLocations[maskIndex];
+        else
+            offset = iSharedOffsets->indicies()[maskIndex].iOffset;
+        
+        if ( offset <= 0 )
+            {
+            aMaskId = -offset;
+            }            
+        }
+        
+    aBitmapId = bitmapId;
+    return KErrNone;
+    }
+
+//  End of File