--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/src/glxtntask.cpp Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,152 @@
+/*
+* 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: Base classes for multi-purpuse tasks
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 31/07/2007 by Simon Brooks
+ */
+
+
+#include "glxtntask.h"
+
+#include <glxtracer.h>
+
+#include "mglxtnthumbnailcreatorclient.h"
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnTask::CGlxtnTask(const TGlxtnTaskId& aId, const TGlxMediaId& aItemId,
+ MGlxtnThumbnailStorage* aStorage)
+ : iState(EStarting), iId(aId), iItemId(aItemId), iStorage(aStorage)
+ {
+ TRACER("CGlxtnTask::CGlxtnTask()");
+ iPriority = CActive::EPriorityStandard;
+ }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnTask::~CGlxtnTask()
+ {
+ TRACER("CGlxtnTask::~CGlxtnTask()");
+ }
+
+// -----------------------------------------------------------------------------
+// SetManager
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::SetManager(CGlxtnTaskManager* /*aManager*/)
+ {
+ TRACER("CGlxtnTask::SetManager()");
+ // No implementation - can be overridden by subclasses
+ }
+
+// -----------------------------------------------------------------------------
+// StartL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::StartL(TRequestStatus& aStatus)
+ {
+ TRACER("CGlxtnTask::StartL()");
+ __ASSERT_DEBUG(iState == EIdle || iState == EStarting, Panic(EGlxPanicIllegalState));
+
+ iState = EStarting;
+
+ TBool active = DoStartL(aStatus);
+
+ if (active)
+ {
+ iState = ERunning;
+ }
+ else
+ {
+ iState = EComplete; // Well, that was quick
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// Cancel
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::Cancel()
+ {
+ TRACER("CGlxtnTask::Cancel()");
+ if ( ERunning == iState )
+ {
+ DoCancel();
+ }
+
+ iState = ECanceled;
+ }
+
+// -----------------------------------------------------------------------------
+// RunL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::RunL(TRequestStatus& aStatus)
+ {
+ TRACER("void CGlxtnTask::RunL()");
+ __ASSERT_DEBUG(iState == ERunning, Panic(EGlxPanicIllegalState));
+
+ TBool active = DoRunL(aStatus);
+
+ if (!active)
+ {
+ iState = EComplete; // The task is done
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// RunError
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::RunError(TInt aError)
+ {
+ TRACER("void CGlxtnTask::RunError()");
+ if ( !DoRunError(aError) )
+ {
+ iState = EComplete; // The task is done
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// SelfComplete
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::SelfComplete(TRequestStatus& aStatus)
+ {
+ TRACER("CGlxtnTask::SelfComplete()");
+ aStatus = KRequestPending;
+ TRequestStatus* status = &aStatus;
+ User::RequestComplete(status, KErrNone);
+ }
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnClientTask::CGlxtnClientTask(const TGlxtnTaskId& aId,
+ const TGlxMediaId& aItemId, MGlxtnThumbnailCreatorClient& aClient) :
+ CGlxtnTask(aId, aItemId, aClient.ThumbnailStorage()), iClient(aClient)
+ {
+ TRACER("CGlxtnClientTask::CGlxtnClientTask()");
+ }