dd5e2eabe9
2006/10/18 19:59:01 thb 1.4.18.3: RESYNC: (1.4-1.5); FILE MERGED 2006/04/24 13:25:33 thb 1.4.18.2: #i53194# Unified include statements (local headers always have double quotes; external headers angle brackets); reverted EventMultiplexer pause events to shared_ptr; removed EventMultiplexer::removeViewHandler(), since the handler is held weakly, anyway. 2006/03/24 18:23:25 thb 1.4.18.1: #i37778# Moved whole slideshow engine from namespace presentation (which conflicts with one of the UNO subnamespaces) to slideshow
105 lines
3.6 KiB
C++
105 lines
3.6 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: randomwipe.cxx,v $
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*
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* $Revision: 1.6 $
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*
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* last change: $Author: kz $ $Date: 2006-12-13 15:44:34 $
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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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// 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/numeric/ftools.hxx>
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#include "randomwipe.hxx"
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#include "tools.hxx"
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namespace slideshow {
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namespace internal {
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RandomWipe::RandomWipe( sal_Int32 nElements, bool randomBars )
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: m_positions( new ::basegfx::B2DPoint[ nElements ] ),
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m_nElements( nElements ),
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m_rect( createUnitRect() )
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{
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::basegfx::B2DHomMatrix aTransform;
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if (randomBars)
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{
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double edge = (1.0 / nElements);
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for ( sal_Int32 pos = nElements; pos--; )
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m_positions[ pos ].setY( ::basegfx::pruneScaleValue( pos * edge ) );
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aTransform.scale( 1.0, ::basegfx::pruneScaleValue(edge) );
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}
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else // dissolve effect
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{
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sal_Int32 sqrtElements = static_cast<sal_Int32>(
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sqrt( static_cast<double>(nElements) ) );
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double edge = (1.0 / sqrtElements);
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for ( sal_Int32 pos = nElements; pos--; ) {
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m_positions[ pos ] = ::basegfx::B2DPoint(
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::basegfx::pruneScaleValue( (pos % sqrtElements) * edge ),
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::basegfx::pruneScaleValue( (pos / sqrtElements) * edge ) );
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}
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const double pedge = ::basegfx::pruneScaleValue(edge);
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aTransform.scale( pedge, pedge );
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}
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m_rect.transform( aTransform );
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// mix up:
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for ( sal_Int32 i = (nElements / 2); i--; )
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{
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const sal_Int32 pos1 = getRandomOrdinal(nElements);
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const sal_Int32 pos2 = getRandomOrdinal(nElements);
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const ::basegfx::B2DPoint point( m_positions[ pos1 ] );
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m_positions[ pos1 ] = m_positions[ pos2 ];
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m_positions[ pos2 ] = point;
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}
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}
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::basegfx::B2DPolyPolygon RandomWipe::operator () ( double t )
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{
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::basegfx::B2DPolyPolygon res;
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for ( sal_Int32 pos = static_cast<sal_Int32>(t * m_nElements); pos--; )
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{
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::basegfx::B2DHomMatrix aTransform;
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::basegfx::B2DPoint const & point = m_positions[ pos ];
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aTransform.translate( point.getX(), point.getY() );
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::basegfx::B2DPolygon poly( m_rect );
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poly.transform( aTransform );
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res.append( poly );
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}
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return res;
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}
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}
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}
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