--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/src/glxtnfileutility.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,290 @@
+/*
+* Copyright (c) 2008-2009 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:    Utility for thumbnail tasks handling files
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 31/07/2007 by Simon Brooks
+ */
+
+#include "glxtnfileutility.h"
+#include <glxtracer.h>
+#include <glxpanic.h>
+#include <glxthumbnailinfo.h>
+#include <pathinfo.h>
+#include <s32file.h>
+#include <featmgr.h>
+#include <bldvariant.hrh>   // For feature constants
+
+_LIT(KGlxBadFileList, "glxbadfilelist.dat");
+_LIT(KGlxBadFileMarker, "glxbadfilemarker.dat");
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnFileUtility::CGlxtnFileUtility()
+    {
+    TRACER("CGlxtnFileUtility::CGlxtnFileUtility()");
+    }
+
+// -----------------------------------------------------------------------------
+// ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFileUtility::ConstructL()
+    {
+    TRACER("CGlxtnFileUtility::ConstructL()");
+	User::LeaveIfError(iFs.Connect());
+
+    iFs.PrivatePath(iBadFileDir);
+    iBadFileDir.Insert(
+                0, PathInfo::PhoneMemoryRootPath().Left( KMaxDriveName ) );
+
+    TRAP_IGNORE(ReadBadFileListL());
+
+    LayoutSpecificDataL();
+    
+    }
+
+// -----------------------------------------------------------------------------
+// NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CGlxtnFileUtility* CGlxtnFileUtility::NewL()
+    {
+    TRACER("CGlxtnFileUtility::NewL()");
+    CGlxtnFileUtility* self = new (ELeave) CGlxtnFileUtility;
+
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop();
+
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnFileUtility::~CGlxtnFileUtility()
+    {
+    TRACER("CGlxtnFileUtility::~CGlxtnFileUtility()");
+	iFs.Close();
+	iBadFileArray.ResetAndDestroy();
+	iPersistentSizeClasses.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// FsSession
+// Provide file server session for opening images from files.
+// -----------------------------------------------------------------------------
+//
+RFs& CGlxtnFileUtility::FsSession()
+    {
+    TRACER("RFs& CGlxtnFileUtility::FsSession()");
+    return iFs;
+    }
+
+// -----------------------------------------------------------------------------
+// CheckBadFileListL
+// Test whether a file is on the bad file list.  If not the bad file marker
+// is set to the filename, so that if a panic occurs it will be added to the
+// bad file list.
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFileUtility::CheckBadFileListL(const TDesC& aFilename)
+    {
+    TRACER("0CGlxtnFileUtility::CheckBadFileListL(const TDesC& aFilename)");
+    for ( TInt i = 0; i < iBadFileArray.Count(); i++ )
+        {
+        if ( 0 == iBadFileArray[i]->CompareF(aFilename) )
+            {
+            // File is bad
+            User::Leave( KErrCorrupt );
+            }
+        }
+
+    // Set bad file marker
+    TPath path(iBadFileDir);
+    path.Append(KGlxBadFileMarker);
+
+    // Ensure directory exists
+    TInt err = iFs.MkDirAll(path);
+    if ( err != KErrAlreadyExists )
+        {
+        User::LeaveIfError(err);
+        }
+
+    RFileWriteStream stream;
+    CleanupClosePushL(stream);
+    User::LeaveIfError(stream.Replace(
+                                iFs, path, EFileWrite | EFileShareExclusive));
+    stream << aFilename;
+    stream.CommitL();
+    CleanupStack::PopAndDestroy(&stream);
+    }
+
+// -----------------------------------------------------------------------------
+// ClearBadFileMarker
+// Clear the bad file marker.  Called when processing a file is complete (no
+// panic occurred).
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFileUtility::ClearBadFileMarker()
+    {
+    TRACER("void CGlxtnFileUtility::ClearBadFileMarker()");
+    TPath path(iBadFileDir);
+    path.Append(KGlxBadFileMarker);
+
+    ( void )iFs.Delete( path );  // Ignore error
+    }
+
+// -----------------------------------------------------------------------------
+// IsPersistentSize
+// Test whether a generated thumbnail should be stored in persistent storage.
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnFileUtility::IsPersistentSize(const TSize& aSize)
+    {
+    TRACER("CGlxtnFileUtility::IsPersistentSize()");
+    for ( TInt i = 0; i < iPersistentSizeClasses.Count(); i++ )
+        {
+        if ( iPersistentSizeClasses[i] == aSize )
+            {
+            return ETrue;
+            }
+        }
+
+    return EFalse;
+    }
+
+// -----------------------------------------------------------------------------
+// ReadBadFileListL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFileUtility::ReadBadFileListL()
+    {
+    TRACER("void CGlxtnFileUtility::ReadBadFileListL()");
+    TPath pathList(iBadFileDir);
+    pathList.Append(KGlxBadFileList);
+    TPath pathMarker(iBadFileDir);
+    pathMarker.Append(KGlxBadFileMarker);
+
+    RFileReadStream stream;
+    CleanupClosePushL(stream);
+
+    // Check bad file list
+    if ( KErrNone == stream.Open(
+                            iFs, pathList, EFileRead | EFileShareReadersOnly) )
+        {
+        TInt err;
+        // Loop until end of file
+        do
+            {
+            TRAP(err,
+                HBufC* file = HBufC::NewLC(stream, KMaxTInt);
+                iBadFileArray.AppendL(file);
+                CleanupStack::Pop(file);
+                )
+            } while ( KErrNone == err );
+
+        stream.Close();
+        // NOTE: We always get KErrEof even if the file is corrupted
+        }
+
+    // Check bad file marker
+    if ( KErrNone == stream.Open(
+                        iFs, pathMarker, EFileRead | EFileShareReadersOnly) )
+        {
+        // File exists, file in marker must be bad
+        HBufC* file = HBufC::NewLC(stream, KMaxTInt);
+        iBadFileArray.AppendL(file);
+        CleanupStack::Pop(file);
+
+        // Save the list for next gallery session
+        // Recreate whole file in case existing file is corrupted
+        WriteBadFileListL();
+
+        stream.Close();
+        ClearBadFileMarker();
+        }
+
+    CleanupStack::Pop(&stream); // Stream already closed
+    }
+
+// -----------------------------------------------------------------------------
+// WriteBadFileListL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFileUtility::WriteBadFileListL()
+    {
+    TRACER("void CGlxtnFileUtility::WriteBadFileListL()");
+    TPath path(iBadFileDir);
+    path.Append(KGlxBadFileList);
+
+    RFileWriteStream stream;
+    CleanupClosePushL(stream);
+    User::LeaveIfError(stream.Replace(
+                        iFs, path, EFileWrite | EFileShareExclusive));
+
+    for ( TInt i = 0; i < iBadFileArray.Count() ; i++ )
+        {
+        stream << *iBadFileArray[i];
+        }
+    stream.CommitL();
+
+    CleanupStack::PopAndDestroy(&stream);
+    }
+// -----------------------------------------------------------------------------
+// LayoutSpecificDataL
+// -----------------------------------------------------------------------------
+//	
+void CGlxtnFileUtility::LayoutSpecificDataL()
+	{
+	TRACER("void CGlxtnFileUtility::LayoutSpecificDataL()");
+	// Sets up TLS, must be done before FeatureManager is used.
+	        FeatureManager::InitializeLibL();
+	        
+	      if(FeatureManager::FeatureSupported( KFeatureIdLayout640_360_Touch ) || FeatureManager::FeatureSupported( KFeatureIdLayout360_640_Touch ))
+	          {
+	          iPersistentSizeClasses.AppendL(TSize(111,83));
+              iPersistentSizeClasses.AppendL(TSize(640,360));
+              iPersistentSizeClasses.AppendL(TSize(360,640));
+	          }
+	      else if(FeatureManager::FeatureSupported(KFeatureIdLayout640_480_Touch) || FeatureManager::FeatureSupported(KFeatureIdLayout480_640_Touch) || 
+	              FeatureManager::FeatureSupported(KFeatureIdLayout640_480) || FeatureManager::FeatureSupported(KFeatureIdLayout480_640))
+	          {
+	          iPersistentSizeClasses.AppendL(TSize(146,110));
+	          iPersistentSizeClasses.AppendL(TSize(640,480));
+	          iPersistentSizeClasses.AppendL(TSize(480,640));
+	          }
+	      else
+	          {
+	          iPersistentSizeClasses.AppendL(TSize(146,110));
+	          iPersistentSizeClasses.AppendL(TSize(640,480));
+	          iPersistentSizeClasses.AppendL(TSize(480,640));
+	          }
+	    // Frees the TLS. Must be done after FeatureManager is used.
+	        FeatureManager::UnInitializeLib(); 
+    }
+	
+ 
+	//  End of File