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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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
#define _BGFX_MATRIX_B2DHOMMATRIX_HXX
#include <sal/types.h>
#include <o3tl/cow_wrapper.hxx>
#include <basegfx/basegfxdllapi.h>
namespace basegfx
{
class B2DTuple;
class Impl2DHomMatrix;
class BASEGFX_DLLPUBLIC B2DHomMatrix
{
public:
typedef o3tl::cow_wrapper< Impl2DHomMatrix > ImplType;
private:
ImplType mpImpl;
public:
B2DHomMatrix();
B2DHomMatrix(const B2DHomMatrix& rMat);
~B2DHomMatrix();
/** constructor to allow setting all needed values for a 3x2 matrix at once. The
parameter f_0x1 e.g. is the same as using set(0, 1, f)
*/
B2DHomMatrix(double f_0x0, double f_0x1, double f_0x2, double f_1x0, double f_1x1, double f_1x2);
double get(sal_uInt16 nRow, sal_uInt16 nColumn) const;
void set(sal_uInt16 nRow, sal_uInt16 nColumn, double fValue);
/** allow setting all needed values for a 3x2 matrix in one call. The
parameter f_0x1 e.g. is the same as using set(0, 1, f)
*/
void set3x2(double f_0x0, double f_0x1, double f_0x2, double f_1x0, double f_1x1, double f_1x2);
// test if last line is default to see if last line needs to be
// involved in calculations
bool isLastLineDefault() const;
// reset to a standard matrix
bool isIdentity() const;
void identity();
bool isInvertible() const;
bool invert();
void rotate(double fRadiant);
void translate(double fX, double fY);
void scale(double fX, double fY);
// Shearing-Matrices
void shearX(double fSx);
void shearY(double fSy);
B2DHomMatrix& operator+=(const B2DHomMatrix& rMat);
B2DHomMatrix& operator-=(const B2DHomMatrix& rMat);
bool operator==(const B2DHomMatrix& rMat) const;
bool operator!=(const B2DHomMatrix& rMat) const;
B2DHomMatrix& operator*=(double fValue);
B2DHomMatrix& operator/=(double fValue);
// matrix multiplication from the left to the local
B2DHomMatrix& operator*=(const B2DHomMatrix& rMat);
// assignment operator
B2DHomMatrix& operator=(const B2DHomMatrix& rMat);
// Help routine to decompose given homogen 3x3 matrix to components. A correction of
// the components is done to avoid inaccuracies.
bool decompose(B2DTuple& rScale, B2DTuple& rTranslate, double& rRotate, double& rShearX) const;
};
// addition, subtraction
inline B2DHomMatrix operator+(const B2DHomMatrix& rMatA, const B2DHomMatrix& rMatB)
{
B2DHomMatrix aSum(rMatA);
aSum += rMatB;
return aSum;
}
inline B2DHomMatrix operator-(const B2DHomMatrix& rMatA, const B2DHomMatrix& rMatB)
{
B2DHomMatrix aDiv(rMatA);
aDiv -= rMatB;
return aDiv;
}
// multiplication, division by a constant
inline B2DHomMatrix operator*(const B2DHomMatrix& rMat, double fValue)
{
B2DHomMatrix aNew(rMat);
aNew *= fValue;
return aNew;
}
inline B2DHomMatrix operator/(const B2DHomMatrix& rMat, double fValue)
{
B2DHomMatrix aNew(rMat);
aNew *= 1.0 / fValue;
return aNew;
}
inline B2DHomMatrix operator*(const B2DHomMatrix& rMatA, const B2DHomMatrix& rMatB)
{
B2DHomMatrix aMul(rMatB);
aMul *= rMatA;
return aMul;
}
} // end of namespace basegfx
#endif /* _BGFX_MATRIX_B2DHOMMATRIX_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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