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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: b2dhommatrixtools.hxx,v $
*
* $Revision: 1.2 $
*
* 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_B2DHOMMATRIXTOOLS_HXX
#define _BGFX_MATRIX_B2DHOMMATRIXTOOLS_HXX
#include <sal/types.h>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/vector/b2dvector.hxx>
///////////////////////////////////////////////////////////////////////////////
namespace basegfx
{
class DecomposedB2DHomMatrixContainer
{
private:
B2DHomMatrix maB2DHomMatrix;
B2DVector maScale;
B2DVector maTranslate;
double mfRotate;
double mfShearX;
// bitfield
unsigned mbDecomposed : 1;
void impCheckDecompose()
{
if(!mbDecomposed)
{
maB2DHomMatrix.decompose(maScale, maTranslate, mfRotate, mfShearX);
mbDecomposed = true;
}
}
public:
DecomposedB2DHomMatrixContainer(const B2DHomMatrix& rB2DHomMatrix)
: maB2DHomMatrix(rB2DHomMatrix),
maScale(),
maTranslate(),
mfRotate(0.0),
mfShearX(0.0),
mbDecomposed(false)
{
}
// data access
const B2DHomMatrix& getB2DHomMatrix() const { return maB2DHomMatrix; }
const B2DVector& getScale() const { const_cast< DecomposedB2DHomMatrixContainer* >(this)->impCheckDecompose(); return maScale; }
const B2DVector& getTranslate() const { const_cast< DecomposedB2DHomMatrixContainer* >(this)->impCheckDecompose(); return maTranslate; }
double getRotate() const { const_cast< DecomposedB2DHomMatrixContainer* >(this)->impCheckDecompose(); return mfRotate; }
double getShearX() const { const_cast< DecomposedB2DHomMatrixContainer* >(this)->impCheckDecompose(); return mfShearX; }
};
} // end of namespace basegfx
///////////////////////////////////////////////////////////////////////////////
#endif /* _BGFX_MATRIX_B2DHOMMATRIXTOOLS_HXX */
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