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/*************************************************************************
*
* $RCSfile: b2dhommatrix.hxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: aw $ $Date: 2003-11-28 11:17:47 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
#define _BGFX_MATRIX_B2DHOMMATRIX_HXX
#ifndef _SAL_TYPES_H_
#include <sal/types.h>
#endif
namespace basegfx
{
// predeclaration
class B2DTuple;
// forward declaration
class Impl2DHomMatrix;
class B2DHomMatrix
{
private:
Impl2DHomMatrix* mpM;
void implPrepareChange();
public:
B2DHomMatrix();
B2DHomMatrix(const B2DHomMatrix& rMat);
~B2DHomMatrix();
double get(sal_uInt16 nRow, sal_uInt16 nColumn) const;
void set(sal_uInt16 nRow, sal_uInt16 nColumn, double fValue);
// Auf Einheitsmatrix zuruecksetzen
sal_Bool isIdentity() const;
void identity();
// Invertierung
sal_Bool isInvertible() const;
sal_Bool invert();
// Normalisierung
sal_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
sal_Bool operator==(const B2DHomMatrix& rMat) const;
sal_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
sal_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
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