--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ganeswidgets/inc/hgquadrenderer.h	Mon Apr 19 14:40:06 2010 +0300
@@ -0,0 +1,108 @@
+/*
+* Copyright (c) 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:    
+*
+*/
+
+#ifndef HGQUADRENDERER_H
+#define HGQUADRENDERER_H
+
+#include <qlist>
+
+class HgQuad;
+class QPointF;
+class QPainter;
+class QRectF;
+class QMatrix4x4;
+class QPolygonF;
+class HgImage;
+class QImage;
+class HgImageFader;
+/**
+ *
+ * Abstract class to be inherited by differend quad renderer implementations.
+ * One could for example implement this in OpenGL instead of OpenVG.
+ */
+class HgQuadRenderer
+{
+public:
+    /**
+     * Destructor.
+     */
+    virtual ~HgQuadRenderer();
+    /**
+     * Gets the quad at given index.
+     * @return HgQuad-object at index.        
+     */
+    virtual HgQuad* quad(int index);
+    /**
+     * Gets the max amount of quads this renderer can draw.
+     * @return max amount of quads.
+     */
+    virtual int quadCount() const;
+    /**
+     * Gets quads index at pointer position.
+     * @param pointer position.
+     * @return quad under the pointer position or -1 if nothing is there.
+     */
+    virtual HgQuad* getQuadAt(const QPointF& point) const = 0;
+    /**
+     * Transform quads with view and projection transformation for rendering.
+     * @param view view transformation matrix.
+     * @param projection transformation matrix.
+     * @rect window rectangle.
+     */
+    virtual void transformQuads(const QMatrix4x4& view, const QMatrix4x4& proj, 
+        const QRectF& rect)=0;
+    /**
+     * Draw transformed quads using painter or underlying Native graphics API.
+     * This should be called inside Widgets draw method.
+     * @param rect window rectangle.
+     * @param painter QPainter-object.
+     */
+    virtual void drawQuads(const QRectF& rect, QPainter* painter)=0;
+    
+    /**
+     * 
+     */
+    virtual bool getQuadTranformedPoints(QPolygonF& points, int index) const=0;
+    
+    /**
+     * 
+     */
+    virtual void setMirroringPlaneY(qreal mirroringPlaneY);
+
+    /**
+     * 
+     */
+    virtual HgImage* createNativeImage()=0;
+    
+    /**
+     * 
+     */
+    virtual void setImageFader(HgImageFader* fader);
+    
+    /**
+     * 
+     */
+    virtual QList<HgQuad*> getVisibleQuads(const QRectF& rect) const=0;
+protected:    
+    HgQuadRenderer(int maxQuads);
+
+    QList<HgQuad*> mQuads;
+    qreal mMirroringPlaneY;
+    HgImageFader* mImageFader;
+};
+
+#endif