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Diffstat (limited to 'basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx')
-rw-r--r-- | basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx b/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx new file mode 100644 index 000000000000..0b200b812bed --- /dev/null +++ b/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx @@ -0,0 +1,86 @@ +/************************************************************************* + * + * 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 */ |