81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
/*************************************************************************
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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: clockwipe.cxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: rt $ $Date: 2005-09-07 20:50:22 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#include "canvas/debug.hxx"
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#include "clockwipe.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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namespace presentation {
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namespace internal {
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::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e )
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{
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::basegfx::B2DPolygon poly;
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::basegfx::B2DHomMatrix aTransform;
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aTransform.rotate( t * F_2PI );
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const double MAX_EDGE = 2.0;
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::basegfx::B2DPoint p( 0.0, -MAX_EDGE );
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p *= aTransform;
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poly.append( p );
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if (t >= 0.875)
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poly.append( ::basegfx::B2DPoint( -e, -e ) );
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if (t >= 0.625)
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poly.append( ::basegfx::B2DPoint( -e, e ) );
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if (t >= 0.375)
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poly.append( ::basegfx::B2DPoint( e, e ) );
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if (t >= 0.125)
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poly.append( ::basegfx::B2DPoint( e, -e ) );
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poly.append( ::basegfx::B2DPoint( 0.0, -e ) );
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poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) );
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poly.setClosed(true);
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return poly;
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}
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::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t )
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{
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::basegfx::B2DHomMatrix aTransform;
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aTransform.scale( 0.5, 0.5 );
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aTransform.translate( 0.5, 0.5 );
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::basegfx::B2DPolygon poly( calcCenteredClock(t) );
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poly.transform( aTransform );
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return ::basegfx::B2DPolyPolygon(poly);
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}
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}
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}
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