--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imagehandlingutilities/thumbnailmanager/inc/thumbnailprovider.inl	Tue Jan 26 15:18:05 2010 +0200
@@ -0,0 +1,92 @@
+/*
+* Copyright (c) 2006-2007 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:  Thumbnail provider class inline functions
+*
+*/
+
+
+#include <e32math.h>
+
+
+inline TSize CThumbnailProvider::FitToSize( const TSize& aOrigSize,
+                                         const TSize& aTargetSize,
+                                         TBool aCrop )
+    {
+    TSize res;
+    TReal32 srcAspect =
+        static_cast<TReal32>( aOrigSize.iWidth ) / aOrigSize.iHeight;
+    TReal32 reqAspect =
+        static_cast<TReal32>( aTargetSize.iWidth ) / aTargetSize.iHeight;
+
+    res = aTargetSize;
+
+    // Check whether the width or the height is the limiting factor for
+    // the size
+    TBool widthLimited = srcAspect > reqAspect;
+    if ( aCrop )
+        {
+        // When cropping, this works exactly the opposite way
+        widthLimited = srcAspect < reqAspect;
+        }
+
+    if ( res.iWidth >= aOrigSize.iWidth &&
+         res.iHeight >= aOrigSize.iHeight )
+        {
+        // Original is smaller than requested. No scaling needed.
+        res = aOrigSize;
+        }
+    else if ( widthLimited )
+        {
+        // Width is the limiting factor, ie. the thumbnail is
+        // wide compared to requested size.
+        TReal trg;
+        TReal src( aTargetSize.iWidth / srcAspect );
+        Math::Round( trg, src, 1 );
+        res.SetSize(
+            aTargetSize.iWidth,
+            trg );
+        }
+    else
+        {
+        // Height is the limiting factor, ie. the thumbnail is
+        // taller compared to requested size.
+        TReal trg;
+        TReal src( aTargetSize.iHeight * srcAspect );
+        Math::Round( trg, src, 1 );
+        res.SetSize(
+            trg,
+            aTargetSize.iHeight );
+        }
+    return res;
+    }
+
+
+inline void CThumbnailProvider::ResolveSize()
+    {
+    // Get the actual target size for the thumbnail.
+    // This is the maximum of the non-cropped and cropped
+    // target sizes.
+
+    TSize scaledSize = FitToSize( iOriginalSize, iTargetSize, EFalse );
+    if ( iCroppedTargetSize.iHeight && iCroppedTargetSize.iWidth )
+        {
+        TSize croppedSize = FitToSize(
+            iOriginalSize, iCroppedTargetSize, ETrue );
+        scaledSize.iWidth = Max( scaledSize.iWidth, croppedSize.iWidth );
+        scaledSize.iHeight = Max( scaledSize.iHeight, croppedSize.iHeight );
+        }
+    iTargetSize = scaledSize;
+    TN_DEBUG3("CThumbnailProvider::ResolveSize() - iTargetSize=(%d, %d)",
+                  iTargetSize.iWidth, iTargetSize.iHeight);
+    }