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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* 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.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"
#include <canvas/debug.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include "clockwipe.hxx"
namespace slideshow {
namespace internal {
::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e )
{
::basegfx::B2DPolygon poly;
::basegfx::B2DHomMatrix aTransform;
aTransform.rotate( t * 2.0 * M_PI );
const double MAX_EDGE = 2.0;
::basegfx::B2DPoint p( 0.0, -MAX_EDGE );
p *= aTransform;
poly.append( p );
if (t >= 0.875)
poly.append( ::basegfx::B2DPoint( -e, -e ) );
if (t >= 0.625)
poly.append( ::basegfx::B2DPoint( -e, e ) );
if (t >= 0.375)
poly.append( ::basegfx::B2DPoint( e, e ) );
if (t >= 0.125)
poly.append( ::basegfx::B2DPoint( e, -e ) );
poly.append( ::basegfx::B2DPoint( 0.0, -e ) );
poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) );
poly.setClosed(true);
return poly;
}
::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t )
{
const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
::basegfx::B2DPolygon poly( calcCenteredClock(t) );
poly.transform( aTransform );
return ::basegfx::B2DPolyPolygon(poly);
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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