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Diffstat (limited to 'basegfx/inc/basegfx/matrix/b2dhommatrix.hxx')
-rw-r--r-- | basegfx/inc/basegfx/matrix/b2dhommatrix.hxx | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/basegfx/inc/basegfx/matrix/b2dhommatrix.hxx b/basegfx/inc/basegfx/matrix/b2dhommatrix.hxx new file mode 100644 index 000000000000..e64d1dbb9101 --- /dev/null +++ b/basegfx/inc/basegfx/matrix/b2dhommatrix.hxx @@ -0,0 +1,171 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX +#define _BGFX_MATRIX_B2DHOMMATRIX_HXX + +#include <sal/types.h> +#include <o3tl/cow_wrapper.hxx> + +namespace basegfx +{ + class B2DTuple; + class Impl2DHomMatrix; + + class 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); + + /// unshare this matrix with all internally shared instances + void makeUnique(); + + 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; + + // Auf Einheitsmatrix zuruecksetzen + bool isIdentity() const; + void identity(); + + // Invertierung + bool isInvertible() const; + bool invert(); + + // Normalisierung + bool isNormalized() const; + void normalize(); + + // Determinante + double determinant() const; + + // Trace + double trace() const; + + // Transpose + void transpose(); + + // Rotation + void rotate(double fRadiant); + + // Translation + void translate(double fX, double fY); + + // Skalierung + void scale(double fX, double fY); + + // Shearing-Matrices + void shearX(double fSx); + void shearY(double fSy); + + // Addition, Subtraktion + B2DHomMatrix& operator+=(const B2DHomMatrix& rMat); + B2DHomMatrix& operator-=(const B2DHomMatrix& rMat); + + // Vergleichsoperatoren + bool operator==(const B2DHomMatrix& rMat) const; + bool operator!=(const B2DHomMatrix& rMat) const; + + // Multiplikation, Division mit Konstante + B2DHomMatrix& operator*=(double fValue); + B2DHomMatrix& operator/=(double fValue); + + // Matritzenmultiplikation von links auf die lokale + 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. + // Zerlegung + bool decompose(B2DTuple& rScale, B2DTuple& rTranslate, double& rRotate, double& rShearX) const; + }; + + // Addition, Subtraktion + 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; + } + + // Multiplikation, Division mit Konstante + 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: */ |