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+/* -*- 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: */