/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/*

 * This file is part of the libmspub project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 */

#ifndef INCLUDED_VECTORTRANSFORMATION2D_H

#define INCLUDED_VECTORTRANSFORMATION2D_H

namespace libmspub

{

struct Vector2D

{

  double m_x;

  double m_y;

  Vector2D(double x, double y) : m_x(x), m_y(y)

  {

  }

};

Vector2D operator+(const Vector2D &l, const Vector2D &r);

Vector2D operator-(const Vector2D &l, const Vector2D &r);

class VectorTransformation2D

{

  double m_m11, m_m12, m_m21, m_m22;

  double m_x, m_y;

public:

  VectorTransformation2D();

  Vector2D transform(Vector2D original) const;

  Vector2D transformWithOrigin(Vector2D v, Vector2D origin) const;

  double getRotation() const;

  double getHorizontalScaling() const;

  double getVerticalScaling() const;

  bool orientationReversing() const;

  friend VectorTransformation2D operator*(const VectorTransformation2D &l, const VectorTransformation2D &r);

  static VectorTransformation2D fromFlips(bool flipH, bool flipV);

  static VectorTransformation2D fromTranslate(double x, double y);

  static VectorTransformation2D fromCounterRadians(double theta);

};

VectorTransformation2D operator*(const VectorTransformation2D &l, const VectorTransformation2D &r);

} // namespace libmspub

#endif /* INCLUDED_VECTORTRANSFORMATION2D_H */

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