/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtOpenVG module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, 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 qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QPAINTENGINE_VG_P_H

#define QPAINTENGINE_VG_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <QtGui/private/qpaintengineex_p.h>

QT_BEGIN_NAMESPACE

class QVGPaintEnginePrivate;

class QPixmapData;

class QVGEGLWindowSurfacePrivate;

class Q_OPENVG_EXPORT QVGPainterState : public QPainterState

{

public:

    QVGPainterState(QVGPainterState& other);

    QVGPainterState();

    ~QVGPainterState();

    bool isNew;

    QRegion clipRegion;

    QPaintEngine::DirtyFlags savedDirty;

};

class Q_OPENVG_EXPORT QVGPaintEngine : public QPaintEngineEx

{

    Q_DECLARE_PRIVATE(QVGPaintEngine)

public:

    QVGPaintEngine();

    ~QVGPaintEngine();

    Type type() const { return OpenVG; }

    QPainterState *createState(QPainterState *orig) const;

    bool begin(QPaintDevice *pdev);

    bool end();

    void draw(const QVectorPath &path);

    void fill(const QVectorPath &path, const QBrush &brush);

    void stroke(const QVectorPath &path, const QPen &pen);

    void clip(const QVectorPath &path, Qt::ClipOperation op);

    void clip(const QRect &rect, Qt::ClipOperation op);

    void clip(const QRegion &region, Qt::ClipOperation op);

    void clip(const QPainterPath &path, Qt::ClipOperation op);

    void clipEnabledChanged();

    void penChanged();

    void brushChanged();

    void brushOriginChanged();

    void opacityChanged();

    void compositionModeChanged();

    void renderHintsChanged();

    void transformChanged();

    void fillRect(const QRectF &rect, const QBrush &brush);

    void fillRect(const QRectF &rect, const QColor &color);

    void drawRoundedRect(const QRectF &rect, qreal xrad, qreal yrad, Qt::SizeMode mode);

    void drawRects(const QRect *rects, int rectCount);

    void drawRects(const QRectF *rects, int rectCount);

    void drawLines(const QLine *lines, int lineCount);

    void drawLines(const QLineF *lines, int lineCount);

    void drawEllipse(const QRectF &r);

    void drawEllipse(const QRect &r);

    void drawPath(const QPainterPath &path);

    void drawPoints(const QPointF *points, int pointCount);

    void drawPoints(const QPoint *points, int pointCount);

    void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);

    void drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode);

    void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);

    void drawPixmap(const QPointF &pos, const QPixmap &pm);

    void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr,

                   Qt::ImageConversionFlags flags = Qt::AutoColor);

    void drawImage(const QPointF &pos, const QImage &image);

    void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s);

    void drawTextItem(const QPointF &p, const QTextItem &textItem);

    void setState(QPainterState *s);

    QVGPainterState *state() { return static_cast<QVGPainterState *>(QPaintEngineEx::state()); }

    const QVGPainterState *state() const { return static_cast<const QVGPainterState *>(QPaintEngineEx::state()); }

    void beginNativePainting();

    void endNativePainting();

    QPixmapFilter *pixmapFilter(int type, const QPixmapFilter *prototype);

    QVGPaintEnginePrivate *vgPrivate() { Q_D(QVGPaintEngine); return d; }

    void fillRegion(const QRegion& region, const QColor& color, const QSize& surfaceSize);

protected:

    QVGPaintEngine(QVGPaintEnginePrivate &data);

private:

    void restoreState(QPaintEngine::DirtyFlags dirty);

    void updateScissor();

    QRegion defaultClipRegion();

    bool isDefaultClipRegion(const QRegion& region);

    bool isDefaultClipRect(const QRect& rect);

    bool clearRect(const QRectF &rect, const QColor &color);

};

QT_END_NAMESPACE

#endif