OpenWalnut
1.4.0
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00001 //--------------------------------------------------------------------------- 00002 // 00003 // Project: OpenWalnut ( http://www.openwalnut.org ) 00004 // 00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS 00006 // For more information see http://www.openwalnut.org/copying 00007 // 00008 // This file is part of OpenWalnut. 00009 // 00010 // OpenWalnut is free software: you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as published by 00012 // the Free Software Foundation, either version 3 of the License, or 00013 // (at your option) any later version. 00014 // 00015 // OpenWalnut is distributed in the hope that it will be useful, 00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 // GNU Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public License 00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>. 00022 // 00023 //--------------------------------------------------------------------------- 00024 00025 #include <cstddef> 00026 00027 #include <sstream> 00028 #include <string> 00029 00030 #include <boost/shared_ptr.hpp> 00031 00032 #include "../common/exceptions/WOutOfBounds.h" 00033 #include "WEEG2Segment.h" 00034 #include "WEEGValueMatrix.h" 00035 #include "WRecording.h" 00036 #include "exceptions/WDHException.h" 00037 #include "io/WPagerEEG.h" 00038 00039 WEEG2Segment::WEEG2Segment( std::size_t segmentID, boost::shared_ptr< WPagerEEG > pager ) 00040 : m_segmentID( segmentID ), 00041 m_pager( pager ) 00042 { 00043 if( !m_pager ) 00044 { 00045 throw WDHException( std::string( "Couldn't construct new EEG segment: pager invalid" ) ); 00046 } 00047 00048 if( m_segmentID >= m_pager->getNumberOfSegments() ) 00049 { 00050 std::ostringstream stream; 00051 stream << "The EEG has no segment number " << m_segmentID; 00052 throw WOutOfBounds( stream.str() ); 00053 } 00054 00055 m_nbSamples = m_pager->getNumberOfSamples( m_segmentID ); 00056 if( m_nbSamples <= 0 || WRecording::MAX_RECORDING_SAMPLES < m_nbSamples ) 00057 { 00058 throw WDHException( std::string( "Couldn't construct new EEG segment: invalid number of samples" ) ); 00059 } 00060 } 00061 00062 std::size_t WEEG2Segment::getNumberOfSamples() const 00063 { 00064 return m_nbSamples; 00065 } 00066 00067 boost::shared_ptr< WEEGValueMatrix > WEEG2Segment::getValues( std::size_t start, std::size_t length ) const 00068 { 00069 // No test whether start and length are valid - this should be done only 00070 // one time by the pager. 00071 return m_pager->getValues( m_segmentID, start, length ); 00072 }