--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/imageeditor/inc/SingleParamControlObserver.h Fri Jan 29 13:53:17 2010 +0200
@@ -0,0 +1,104 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "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:
+* Ixonos Plc
+*
+* Description:
+*
+*/
+
+
+
+#ifndef SINGLEPARAMCONTROLOBSERVER_H
+#define SINGLEPARAMCONTROLOBSERVER_H
+
+// INCLUDES
+
+// FORWARD DECLARATIONS
+
+
+/* CLASS: MSingleParControlObserver
+*
+* MSingleParControlObserver is a mixin class for updating the parameter
+*
+*/
+class MSingleParControlObserver
+{
+public:
+/** @name Methods:*/
+//@{
+ enum TParamOperation
+ {
+ // Invalid
+ EParamOperationMin,
+ // Set default parameter
+ EParamOperationDefault,
+ // Add step to parameter
+ EParamOperationAdd,
+ // Subtract step from parameter
+ EParamOperationSubtract,
+ // Invalid
+ EParamOperationMax,
+ };
+//@}
+
+/** @name Methods:*/
+//@{
+ /** ParamOperation
+ *
+ * Performs an operation to the filter parameter.
+ *
+ * @param aOperation - filter parameter operation
+ * @return -
+ */
+ virtual void ParamOperation (const TParamOperation aOperation) = 0;
+
+ /** GetParam
+ *
+ * Gets filter parameter.
+ *
+ * @param -
+ * @return TReal - filter parameter value
+ */
+ virtual TReal GetParam () const = 0;
+//@}
+
+protected:
+
+/** @name Methods:*/
+//@{
+
+//@}
+
+/** @name Members:*/
+//@{
+
+//@}
+
+private:
+
+/** @name Methods:*/
+//@{
+
+
+//@}
+
+/** @name Members:*/
+//@{
+
+//@}
+
+};
+
+#endif
+
+// End of File