/*

 * Copyright (C) 2005, 2006 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#ifndef AffineTransform_h

#define AffineTransform_h

#if PLATFORM(CG)

#include <ApplicationServices/ApplicationServices.h>

#elif PLATFORM(QT)

#include <QMatrix>

#elif PLATFORM(CAIRO)

#include "cairo.h"

#endif

namespace WebCore {

class IntRect;

class FloatRect;

class AffineTransform {

public:

    AffineTransform();

    AffineTransform(double a, double b, double c, double d, double e, double f);

#if PLATFORM(CG)

    AffineTransform(CGAffineTransform transform);

#elif PLATFORM(QT)

    AffineTransform(const QMatrix &matrix);

#elif PLATFORM(CAIRO)

    AffineTransform(const cairo_matrix_t &matrix);

#endif

    void setMatrix(double a, double b, double c, double d, double e, double f);

    void map(double x, double y, double *x2, double *y2) const;

    IntRect mapRect(const IntRect&) const;

    FloatRect mapRect(const FloatRect&) const;

    bool isIdentity() const;

    double a() const;

    void setA(double a);

    double b() const;

    void setB(double b);

    double c() const;

    void setC(double c);

    double d() const;

    void setD(double d);

    double e() const;

    void setE(double e);

    double f() const;

    void setF(double f);

    void reset();

    AffineTransform& multiply(const AffineTransform&);

    AffineTransform& scale(double); 

    AffineTransform& scale(double sx, double sy); 

    AffineTransform& scaleNonUniform(double sx, double sy);

    AffineTransform& rotate(double d);

    AffineTransform& rotateFromVector(double x, double y);

    AffineTransform& translate(double tx, double ty);

    AffineTransform& shear(double sx, double sy);

    AffineTransform& flipX();

    AffineTransform& flipY();

    AffineTransform& skewX(double angle);

    AffineTransform& skewY(double angle);

    double det() const;

    bool isInvertible() const;

    AffineTransform inverse() const;

#if PLATFORM(CG)

    operator CGAffineTransform() const;

#elif PLATFORM(QT)

    operator QMatrix() const;

#elif PLATFORM(CAIRO)

    operator cairo_matrix_t() const;

#endif

    bool operator==(const AffineTransform&) const;

    AffineTransform& operator*=(const AffineTransform&);

    AffineTransform operator*(const AffineTransform&);

private:

#if PLATFORM(CG)

    CGAffineTransform m_transform;

#elif PLATFORM(QT)

    QMatrix m_transform;

#elif PLATFORM(CAIRO)

    cairo_matrix_t m_transform;

#endif

};

} // namespace WebCore

#endif // AffineTransform_h