536c813043
2006/10/18 19:53:14 thb 1.3.18.3: RESYNC: (1.5-1.6); FILE MERGED 2006/09/15 22:12:20 thb 1.3.18.2: RESYNC: (1.3-1.5); FILE MERGED 2006/03/24 18:23:13 thb 1.3.18.1: #i37778# Moved whole slideshow engine from namespace presentation (which conflicts with one of the UNO subnamespaces) to slideshow
129 lines
5.0 KiB
C++
129 lines
5.0 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: continuouskeytimeactivitybase.cxx,v $
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*
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* $Revision: 1.7 $
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*
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* last change: $Author: kz $ $Date: 2006-12-13 15:26:04 $
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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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// must be first
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#include <canvas/debug.hxx>
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#include <canvas/verbosetrace.hxx>
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#include <continuouskeytimeactivitybase.hxx>
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#include <algorithm>
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#include <iterator>
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namespace slideshow
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{
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namespace internal
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{
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ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase( const ActivityParameters& rParms ) :
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SimpleContinuousActivityBase( rParms ),
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maKeyTimes( rParms.maDiscreteTimes ),
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mnLastIndex( 0 )
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{
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ENSURE_AND_THROW( maKeyTimes.size() > 1,
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"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector must have two entries or more" );
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#ifdef DBG_UTIL
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// check parameters: rKeyTimes must be sorted in
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// ascending order, and contain values only from the range
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// [0,1]
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for( ::std::size_t i=1, len=maKeyTimes.size(); i<len; ++i )
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{
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if( maKeyTimes[i] < 0.0 ||
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maKeyTimes[i] > 1.0 ||
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maKeyTimes[i-1] < 0.0 ||
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maKeyTimes[i-1] > 1.0 )
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{
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ENSURE_AND_THROW( false, "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): time values not within [0,1] range!" );
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}
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if( maKeyTimes[i-1] > maKeyTimes[i] )
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{
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ENSURE_AND_THROW( false, "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): time vector is not sorted in ascending order!" );
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}
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}
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// TODO(E2): check this also in production code?
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#endif
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}
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void ContinuousKeyTimeActivityBase::simplePerform( double nSimpleTime,
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sal_uInt32 nRepeatCount ) const
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{
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// calc simple time from global time - sweep through the
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// array multiple times for repeated animations (according to
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// SMIL spec).
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const double nT( calcAcceleratedTime( nSimpleTime ) );
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// determine position within key times vector from
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// current simple time
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// shortcut: cached value still okay?
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if( maKeyTimes[ mnLastIndex ] < nT ||
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maKeyTimes[ mnLastIndex+1 ] >= nT )
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{
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// nope, find new index
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mnLastIndex = ::std::min< ::std::ptrdiff_t >(
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maKeyTimes.size()-2,
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// range is ensured by max below
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::std::max< ::std::ptrdiff_t >(
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0,
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::std::distance( maKeyTimes.begin(),
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::std::lower_bound( maKeyTimes.begin(),
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maKeyTimes.end(),
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nT ) ) - 1 ) );
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}
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OSL_ENSURE( mnLastIndex+1 < maKeyTimes.size(),
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"ContinuousKeyTimeActivityBase::simplePerform(): index out of range" );
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// mnLastIndex is now valid and up-to-date
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// calc current simple time, as a fractional value ([0,1] range).
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// I.e. the relative position between the two index times.
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const double nCurrFractionalSimplTime( (nT - maKeyTimes[ mnLastIndex ]) /
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(maKeyTimes[ mnLastIndex+1 ] - maKeyTimes[ mnLastIndex ]) );
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perform(
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mnLastIndex,
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nCurrFractionalSimplTime,
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nRepeatCount );
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}
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}
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}
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