diff -r 000000000000 -r 16d8024aca5e src/hbcore/style/hbstyleinterface.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/style/hbstyleinterface.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,59 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+
+#include "hbstyleinterface.h"
+
+
+/*!
+    \fn virtual int primitiveCount() const = 0;
+
+    Return the count of primitives created / supported by this plugin.
+*/
+
+/*!
+    \fn virtual QGraphicsItem *createPrimitive( HbStyle::Primitive primitive, QGraphicsItem *parent = 0 ) const = 0;
+
+    Returns primitives created in this plugin. Note that the primitive parameter range is internal to the plugin. This means that
+	you can define your plugin's primitives in your domain (for example app domain). When calling create/updatePrimitive from your custom
+	widget use plugin's base id + your primitive's id. See also the documentation from HbStyle::createPrimitive.
+*/
+
+/*!
+    \fn virtual void updatePrimitive( QGraphicsItem *item, HbStyle::Primitive primitive, const QStyleOption *option ) const  = 0;
+
+	Updates the primitives defined in this plugin. See more documentation from HbStyle::updatePrimitive.
+    
+*/
+
+/*!
+    \fn virtual QString layoutPath() const = 0;
+
+	Returns the path to layout definition files (CSS/WidgetML). The path can define several CSS and WidgetML files. The directory can contain
+	several widgets' layout definitions. Subdirectories are not supported. The filenames in the directory must match with the widgets' class
+	names. For example class called MyExampleWidget should have myexamplewidget.css and myexamplewidget.widgetml in the directory returned by layoutPath().
+
+    
+*/