--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/eswt_qt/com.nokia.swt.extensions/extensions/org/eclipse/swt/internal/extension/GraphicsUtil.java	Mon Oct 04 00:10:53 2010 +0300
@@ -0,0 +1,69 @@
+/*******************************************************************************
+ * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved. This program 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
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *     Nokia Corporation - initial implementation 
+ *******************************************************************************/
+
+package org.eclipse.swt.internal.extension;
+
+import org.eclipse.swt.graphics.Internal_GfxPackageSupport;
+import org.eclipse.swt.widgets.Internal_PackageSupport;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.internal.qt.graphics.WindowSurface;
+
+public final class GraphicsUtil {
+
+    /**
+     * Ends window surface session started with startExternalRendering() -call.
+     * Must be called after the rendering of external renderer has finished.
+     *
+     * @param gc The gc instance where the rendering is targeted
+     */
+    public static void endExternalRendering(GC gc) {
+        Internal_GfxPackageSupport.endExternalRendering(gc);          
+    }	
+
+    /**
+     * Returns the WindowSurface instance that is the ultimate target of the
+     * rendering for the given gc instance.
+     *
+     * @param gc The gc instance asossiated with the WindowSurface
+     * @return The WindowSurface instance that is the target of given gc instance
+     */
+    public static WindowSurface getWindowSurface(GC gc) {
+        return Internal_GfxPackageSupport.getWindowSurface(gc);
+    }
+
+    /**
+     * Start a window surface rendering session on the surface that is the 
+     * target of the given gc instance. This method must be called before 
+     * rendering to the window surface from external rendering APIs like m3g and m2g. 
+     * The caller must not render outside the area defined by the returned rectangle, 
+     * as it may result in rendering on top of other controls.
+     *
+     * @param gc The gc instance where the rendering is targeted
+     * @return The current clip of the gc in window surface coordinates or
+     *         null if the target of given gc is not a Control
+     */
+    public static Rectangle startExternalRendering(GC gc) {
+        return Internal_GfxPackageSupport.startExternalRendering(gc);          
+    }	
+    
+    /**
+     * Converts the given rectangle to window surface coordinates. 
+     *
+     * @param c The Control instance on which coordinates the conversion is done 
+     * @param rect The rectangle to be converted
+     * @return Rectangcular area in window surface coordinates
+     */
+    public static Rectangle toWindowSurface(Control c, Rectangle rect) {
+        return Internal_PackageSupport.toWindowSurface(c, rect);
+    }
+}
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