86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: zigzagwipe.cxx,v $
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* $Revision: 1.6 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_slideshow.hxx"
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#include <canvas/debug.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/point/b2dpoint.hxx>
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#include <basegfx/numeric/ftools.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include "transitiontools.hxx"
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#include "zigzagwipe.hxx"
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namespace slideshow {
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namespace internal {
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ZigZagWipe::ZigZagWipe( sal_Int32 nZigs ) : m_zigEdge( 1.0 / nZigs )
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{
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const double d = m_zigEdge;
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const double d2 = (d / 2.0);
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m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, -d ) );
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m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, 1.0 + d ) );
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m_stdZigZag.append( ::basegfx::B2DPoint( -d, 1.0 + d ) );
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for ( sal_Int32 pos = (nZigs + 2); pos--; ) {
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m_stdZigZag.append( ::basegfx::B2DPoint( 0.0, ((pos - 1) * d) + d2 ) );
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m_stdZigZag.append( ::basegfx::B2DPoint( -d, (pos - 1) * d ) );
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}
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m_stdZigZag.setClosed(true);
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}
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::basegfx::B2DPolyPolygon ZigZagWipe::operator () ( double t )
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{
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::basegfx::B2DPolyPolygon res(m_stdZigZag);
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res.transform(basegfx::tools::createTranslateB2DHomMatrix((1.0 + m_zigEdge) * t, 0.0));
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return res;
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}
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::basegfx::B2DPolyPolygon BarnZigZagWipe::operator () ( double t )
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{
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::basegfx::B2DPolyPolygon res( createUnitRect() );
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::basegfx::B2DPolygon poly( m_stdZigZag );
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poly.flip();
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basegfx::B2DHomMatrix aTransform(basegfx::tools::createTranslateB2DHomMatrix(
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(1.0 + m_zigEdge) * (1.0 - t) / 2.0, 0.0));
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poly.transform( aTransform );
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res.append( poly );
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aTransform.scale( -1.0, 1.0 );
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aTransform.translate( 1.0, m_zigEdge / 2.0 );
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poly = m_stdZigZag;
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poly.transform( aTransform );
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res.append( poly );
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return res;
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}
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}
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}
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