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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: zigzagwipe.cxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: obo $ $Date: 2006-09-17 08:43:38 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 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
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"
#include "zigzagwipe.hxx"
#include "canvas/debug.hxx"
#include "transitiontools.hxx"
#include "basegfx/matrix/b2dhommatrix.hxx"
#include "basegfx/point/b2dpoint.hxx"
// #include "basegfx/numeric/ftools.hxx"
namespace presentation {
namespace internal {
ZigZagWipe::ZigZagWipe( sal_Int32 nZigs ) : m_zigEdge( 1.0 / nZigs )
{
const double d = m_zigEdge;
const double d2 = (d / 2.0);
m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, -d ) );
m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, 1.0 + d ) );
m_stdZigZag.append( ::basegfx::B2DPoint( -d, 1.0 + d ) );
for ( sal_Int32 pos = (nZigs + 2); pos--; ) {
m_stdZigZag.append( ::basegfx::B2DPoint( 0.0, ((pos - 1) * d) + d2 ) );
m_stdZigZag.append( ::basegfx::B2DPoint( -d, (pos - 1) * d ) );
}
m_stdZigZag.setClosed(true);
}
::basegfx::B2DPolyPolygon ZigZagWipe::operator () ( double t )
{
::basegfx::B2DHomMatrix aTransform;
aTransform.translate( (1.0 + m_zigEdge) * t, 0.0 );
::basegfx::B2DPolyPolygon res(m_stdZigZag);
res.transform( aTransform );
return res;
}
::basegfx::B2DPolyPolygon BarnZigZagWipe::operator () ( double t )
{
::basegfx::B2DPolyPolygon res( createUnitRect() );
::basegfx::B2DPolygon poly( m_stdZigZag );
poly.flip();
::basegfx::B2DHomMatrix aTransform;
aTransform.translate( (1.0 + m_zigEdge) * (1.0 - t) / 2.0, 0.0 );
poly.transform( aTransform );
res.append( poly );
aTransform.scale( -1.0, 1.0 );
aTransform.translate( 1.0, m_zigEdge / 2.0 );
poly = m_stdZigZag;
poly.transform( aTransform );
res.append( poly );
return res;
}
}
}
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