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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice 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/.
*
*/
#pragma once
#include <basegfx/point/b2dpoint.hxx>
#include <tools/gen.hxx>
namespace vcl::pdf
{
// matrix helper class
// TODO: use basegfx matrix class instead or derive from it
/* for sparse matrices of the form (2D linear transformations)
* f[0] f[1] 0
* f[2] f[3] 0
* f[4] f[5] 1
*/
class Matrix3
{
double f[6];
void set(const double* pn)
{
for (int i = 0; i < 6; i++)
f[i] = pn[i];
}
public:
Matrix3();
void skew(double alpha, double beta);
void scale(double sx, double sy);
void rotate(double angle);
void translate(double tx, double ty);
void invert();
double get(size_t i) const { return f[i]; }
Point transform(const Point& rPoint) const;
basegfx::B2DPoint transform(const basegfx::B2DPoint& rPoint) const;
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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