1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:    

    15 *

    16 */

    17 

    18 #ifndef HGTRANSFORMEDQUADRENDERER_H

    19 #define HGTRANSFORMEDQUADRENDERER_H

    20 

    21 #include "hgquadrenderer.h"

    22 #include <qlist>

    23 #include <qimage>

    24 

    25 class QPoint;

    26 class QPainter;

    27 class QRectF;

    28 class QMatrix4x4;

    29 class QSize;

    30 class HgTransformedQuad;

    31 

    32 /**

    33  * Abstract base class for quad renderers, that need to tranform quads manually. (using CPU)

    34  */

    35 class HgTransformedQuadRenderer: public HgQuadRenderer

    36 {

    37 public:

    38     

    39     HgTransformedQuadRenderer(int maxQuads);

    40     virtual ~HgTransformedQuadRenderer();    

    41     

    42     virtual HgQuad* getQuadAt(const QPointF& point) const;

    43     virtual bool getQuadTranformedPointsByUserData(QPolygonF& points, const QVariant& userData) const;

    44     virtual QList<HgQuad*> getVisibleQuads(const QRectF& rect) const;

    45             

    46 protected:

    47 

    48     // this must be called from inheriting class

    49     void init(int maxQuads);

    50     

    51     virtual void transformQuads(const QMatrix4x4& view, const QMatrix4x4& proj, 

    52         const QPointF& center, const QSizeF& windowSize);

    53 

    54     virtual void drawTransformedQuads(QPainter* painter, const QRectF& rect);

    55     

    56     virtual HgTransformedQuad* createNativeQuad()=0;

    57         

    58 private:

    59     QList<HgTransformedQuad*> mTransformedQuads;    

    60     QList<HgTransformedQuad*> mSortedQuads;    

    61 };

    62 

    63 #endif