Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* libmspub
       3             :  * Version: MPL 1.1 / GPLv2+ / LGPLv2+
       4             :  *
       5             :  * The contents of this file are subject to the Mozilla Public License Version
       6             :  * 1.1 (the "License"); you may not use this file except in compliance with
       7             :  * the License or as specified alternatively below. You may obtain a copy of
       8             :  * the License at http://www.mozilla.org/MPL/
       9             :  *
      10             :  * Software distributed under the License is distributed on an "AS IS" basis,
      11             :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12             :  * for the specific language governing rights and limitations under the
      13             :  * License.
      14             :  *
      15             :  * Major Contributor(s):
      16             :  * Copyright (C) 2012 Brennan Vincent <brennanv@email.arizona.edu>
      17             :  *
      18             :  * All Rights Reserved.
      19             :  *
      20             :  * For minor contributions see the git repository.
      21             :  *
      22             :  * Alternatively, the contents of this file may be used under the terms of
      23             :  * either the GNU General Public License Version 2 or later (the "GPLv2+"), or
      24             :  * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
      25             :  * in which case the provisions of the GPLv2+ or the LGPLv2+ are applicable
      26             :  * instead of those above.
      27             :  */
      28             : 
      29             : #ifndef __VECTORTRANSFORMATION2D_H__
      30             : #define __VECTORTRANSFORMATION2D_H__
      31             : 
      32             : namespace libmspub
      33             : {
      34             : struct Vector2D
      35             : {
      36             :   double m_x;
      37             :   double m_y;
      38           0 :   Vector2D(double x, double y) : m_x(x), m_y(y)
      39             :   {
      40           0 :   }
      41             : };
      42             : Vector2D operator+(const Vector2D &l, const Vector2D &r);
      43             : Vector2D operator-(const Vector2D &l, const Vector2D &r);
      44             : class VectorTransformation2D
      45             : {
      46             :   double m_m11, m_m12, m_m21, m_m22;
      47             :   double m_x, m_y;
      48             : public:
      49             :   VectorTransformation2D();
      50             :   Vector2D transform(Vector2D original) const;
      51             :   Vector2D transformWithOrigin(Vector2D v, Vector2D origin) const;
      52             :   double getRotation() const;
      53             :   double getHorizontalScaling() const;
      54             :   double getVerticalScaling() const;
      55             :   bool orientationReversing() const;
      56             :   friend VectorTransformation2D operator*(const VectorTransformation2D &l, const VectorTransformation2D &r);
      57             :   static VectorTransformation2D fromFlips(bool flipH, bool flipV);
      58             :   static VectorTransformation2D fromTranslate(double x, double y);
      59             :   static VectorTransformation2D fromCounterRadians(double theta);
      60             : };
      61             : VectorTransformation2D operator*(const VectorTransformation2D &l, const VectorTransformation2D &r);
      62             : } // namespace libmspub
      63             : 
      64             : #endif /* __VECTORTRANSFORMATION2D_H__ */
      65             : /* vim:set shiftwidth=2 softtabstop=2 expandtab: */