diff options
Diffstat (limited to 'libk3b/projects/audiocd/k3baudiotrack.cpp')
| -rw-r--r-- | libk3b/projects/audiocd/k3baudiotrack.cpp | 628 |
1 files changed, 628 insertions, 0 deletions
diff --git a/libk3b/projects/audiocd/k3baudiotrack.cpp b/libk3b/projects/audiocd/k3baudiotrack.cpp new file mode 100644 index 0000000..a1d12e4 --- /dev/null +++ b/libk3b/projects/audiocd/k3baudiotrack.cpp @@ -0,0 +1,628 @@ +/* + * + * $Id: k3baudiotrack.cpp 620139 2007-01-05 11:59:05Z trueg $ + * Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org> + * + * This file is part of the K3b project. + * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * See the file "COPYING" for the exact licensing terms. + */ + + +#include "k3baudiotrack.h" +#include "k3baudiodoc.h" +#include "k3baudiodatasource.h" + +#include <k3baudiodecoder.h> +#include <k3bcore.h> +#include <k3bcdtextvalidator.h> + +#include <qstring.h> + +#include <kdebug.h> + + + +class K3bAudioTrack::Private +{ +public: + Private() { + cdTextValidator = new K3bCdTextValidator(); + } + + ~Private() { + delete cdTextValidator; + } + + K3bCdTextValidator* cdTextValidator; +}; + + +K3bAudioTrack::K3bAudioTrack() + : m_parent(0), + m_copy(false), + m_preEmp(false), + m_index0Offset(150), + m_prev(0), + m_next(0), + m_firstSource(0), + m_currentSource(0), + m_alreadyReadBytes(0), + m_currentlyDeleting(false) +{ + d = new Private; +} + + +K3bAudioTrack::K3bAudioTrack( K3bAudioDoc* parent ) + : m_parent(parent), + m_copy(false), + m_preEmp(false), + m_index0Offset(150), + m_prev(0), + m_next(0), + m_firstSource(0), + m_currentSource(0), + m_alreadyReadBytes(0), + m_currentlyDeleting(false) +{ + d = new Private; +} + + +K3bAudioTrack::~K3bAudioTrack() +{ + kdDebug() << "(K3bAudioTrack::~K3bAudioTrack) " << this << endl; + // + // It is crucial that we do not emit the changed signal here because otherwise + // the doc will delete us again once we are empty! + // + m_currentlyDeleting = true; + + // fix the list + take(); + + kdDebug() << "(K3bAudioTrack::~K3bAudioTrack) deleting sources." << endl; + + // delete all sources + while( m_firstSource ) + delete m_firstSource->take(); + + kdDebug() << "(K3bAudioTrack::~K3bAudioTrack) finished" << endl; + + delete d; +} + + +void K3bAudioTrack::emitChanged() +{ + if( m_parent ) + m_parent->slotTrackChanged( this ); +} + + +void K3bAudioTrack::setArtist( const QString& a ) +{ + setPerformer( a ); +} + + +void K3bAudioTrack::setPerformer( const QString& a ) +{ + QString s( a ); + d->cdTextValidator->fixup( s ); + m_cdText.setPerformer(s); + emitChanged(); +} + + +void K3bAudioTrack::setTitle( const QString& t ) +{ + QString s( t ); + d->cdTextValidator->fixup( s ); + m_cdText.setTitle(s); + emitChanged(); +} + + +void K3bAudioTrack::setArranger( const QString& t ) +{ + QString s( t ); + d->cdTextValidator->fixup( s ); + m_cdText.setArranger(s); + emitChanged(); +} + + +void K3bAudioTrack::setSongwriter( const QString& t ) +{ + QString s( t ); + d->cdTextValidator->fixup( s ); + m_cdText.setSongwriter(s); + emitChanged(); +} + + +void K3bAudioTrack::setComposer( const QString& t ) +{ + QString s( t ); + d->cdTextValidator->fixup( s ); + m_cdText.setComposer(s); + emitChanged(); +} + + +void K3bAudioTrack::setIsrc( const QString& t ) +{ + m_cdText.setIsrc(t); + emitChanged(); +} + + +void K3bAudioTrack::setCdTextMessage( const QString& t ) +{ + QString s( t ); + d->cdTextValidator->fixup( s ); + m_cdText.setMessage(s); + emitChanged(); +} + + +void K3bAudioTrack::setCdText( const K3bDevice::TrackCdText& cdtext ) +{ + m_cdText = cdtext; + emitChanged(); +} + + +K3bAudioDataSource* K3bAudioTrack::lastSource() const +{ + K3bAudioDataSource* s = m_firstSource; + while( s && s->next() ) + s = s->next(); + return s; +} + + +bool K3bAudioTrack::inList() const +{ + if( doc() ) + return ( doc()->firstTrack() == this || m_prev != 0 ); + else + return false; +} + + +K3b::Msf K3bAudioTrack::length() const +{ + K3b::Msf length; + K3bAudioDataSource* source = m_firstSource; + while( source ) { + length += source->length(); + source = source->next(); + } + return length; +} + + +KIO::filesize_t K3bAudioTrack::size() const +{ + return length().audioBytes(); +} + + +unsigned int K3bAudioTrack::trackNumber() const +{ + if( m_prev ) + return m_prev->trackNumber() + 1; + else + return 1; +} + + +K3b::Msf K3bAudioTrack::index0() const +{ + // we save the index0Offset as length of the resulting pregap + // this way the length of the track does not need to be ready + // when creating the track. + return length() - m_index0Offset; +} + + +K3b::Msf K3bAudioTrack::postGap() const +{ + if( next() ) + return m_index0Offset; + else + return 0; +} + + +void K3bAudioTrack::setIndex0( const K3b::Msf& msf ) +{ + if( msf == 0 ) + m_index0Offset = 0; + else + m_index0Offset = length() - msf; +} + + +K3bAudioTrack* K3bAudioTrack::take() +{ + if( inList() ) { + if( !m_prev ) + doc()->setFirstTrack( m_next ); + if( !m_next ) + doc()->setLastTrack( m_prev ); + + if( m_prev ) + m_prev->m_next = m_next; + if( m_next ) + m_next->m_prev = m_prev; + + m_prev = m_next = 0; + + // remove from doc + if( m_parent ) + m_parent->slotTrackRemoved(this); + m_parent = 0; + } + + return this; +} + + +void K3bAudioTrack::moveAfter( K3bAudioTrack* track ) +{ + kdDebug() << "(K3bAudioTrack::moveAfter( " << track << " )" << endl; + if( !track ) { + if( !doc() ) { + kdDebug() << "(K3bAudioTrack::moveAfter) no parent set" << endl; + return; + } + + // make sure we do not mess up the list + if( doc()->lastTrack() ) + moveAfter( doc()->lastTrack() ); + else { + doc()->setFirstTrack( take() ); + doc()->setLastTrack( this ); + } + } + else if( track == this ) { + kdDebug() << "(K3bAudioTrack::moveAfter) trying to move this after this." << endl; + return; + } + else { + // remove this from the list + take(); + + // set the new parent doc + m_parent = track->doc(); + + K3bAudioTrack* oldNext = track->m_next; + + // set track as prev + track->m_next = this; + m_prev = track; + + // set oldNext as next + if( oldNext ) + oldNext->m_prev = this; + m_next = oldNext; + + if( !m_prev ) + doc()->setFirstTrack( this ); + if( !m_next ) + doc()->setLastTrack( this ); + } + + emitChanged(); +} + + +void K3bAudioTrack::moveAhead( K3bAudioTrack* track ) +{ + if( !track ) { + if( !doc() ) { + kdDebug() << "(K3bAudioTrack::moveAfter) no parent set" << endl; + return; + } + + // make sure we do not mess up the list + if( doc()->firstTrack() ) + moveAhead( doc()->firstTrack() ); + else { + doc()->setFirstTrack( take() ); + doc()->setLastTrack( this ); + } + } + else if( track == this ) { + kdDebug() << "(K3bAudioTrack::moveAhead) trying to move this ahead of this." << endl; + return; + } + else { + // remove this from the list + take(); + + // set the new parent doc + m_parent = track->doc(); + + K3bAudioTrack* oldPrev = track->m_prev; + + // set track as next + m_next = track; + track->m_prev = this; + + // set oldPrev as prev + m_prev = oldPrev; + if( oldPrev ) + oldPrev->m_next = this; + + if( !m_prev ) + doc()->setFirstTrack( this ); + if( !m_next ) + doc()->setLastTrack( this ); + } + + emitChanged(); +} + + +void K3bAudioTrack::merge( K3bAudioTrack* trackToMerge, K3bAudioDataSource* sourceAfter ) +{ + kdDebug() << "(K3bAudioTrack::merge) " << trackToMerge << " into " << this << endl; + if( this == trackToMerge ) { + kdDebug() << "(K3bAudioTrack::merge) trying to merge this with this." << endl; + return; + } + + // remove the track to merge to make sure it does not get deleted by the doc too early + trackToMerge->take(); + + // in case we prepend all of trackToMerge's sources + if( !sourceAfter ) { + kdDebug() << "(K3bAudioTrack::merge) merging " << trackToMerge->firstSource() << endl; + if( m_firstSource ) { + trackToMerge->firstSource()->moveAhead( m_firstSource ); + } + else { + addSource( trackToMerge->firstSource()->take() ); + } + sourceAfter = m_firstSource; + } + + kdDebug() << "(K3bAudioTrack::merge) now merge the other sources." << endl; + // now merge all sources into this track + while( trackToMerge->firstSource() ) { + K3bAudioDataSource* s = trackToMerge->firstSource(); + kdDebug() << "(K3bAudioTrack::merge) merging source " << s << " from track " << s->track() << " into track " + << this << " after source " << sourceAfter << endl; + s->moveAfter( sourceAfter ); + sourceAfter = s; + } + + // TODO: should we also merge the indices? + + // now we can safely delete the track we merged + delete trackToMerge; + + kdDebug() << "(K3bAudioTrack::merge) finished" << endl; + + emitChanged(); +} + + +void K3bAudioTrack::setFirstSource( K3bAudioDataSource* source ) +{ + // reset the reading stuff since this might be a completely new source list + m_currentSource = 0; + m_alreadyReadBytes = 0; + + m_firstSource = source; + while( source ) { + source->m_track = this; + source = source->next(); + } + + emitChanged(); +} + + +void K3bAudioTrack::addSource( K3bAudioDataSource* source ) +{ + if( !source ) + return; + + K3bAudioDataSource* s = m_firstSource; + while( s && s->next() ) + s = s->next(); + if( s ) + source->moveAfter( s ); + else + setFirstSource( source->take() ); +} + + +void K3bAudioTrack::sourceChanged( K3bAudioDataSource* ) +{ + if( m_currentlyDeleting ) + return; + + // TODO: update indices + + if( m_index0Offset > length() ) + m_index0Offset = length()-1; + + emitChanged(); +} + + +int K3bAudioTrack::numberSources() const +{ + K3bAudioDataSource* source = m_firstSource; + int i = 0; + while( source ) { + source = source->next(); + ++i; + } + return i; +} + + +bool K3bAudioTrack::seek( const K3b::Msf& msf ) +{ + K3bAudioDataSource* source = m_firstSource; + + K3b::Msf pos; + while( source && pos + source->length() < msf ) { + pos += source->length(); + source = source->next(); + } + + if( source ) { + m_currentSource = source; + m_alreadyReadBytes = msf.audioBytes(); + return source->seek( msf - pos ); + } + else + return false; +} + + +int K3bAudioTrack::read( char* data, unsigned int max ) +{ + if( !m_currentSource ) { + m_currentSource = m_firstSource; + if( m_currentSource ) + m_currentSource->seek(0); + m_alreadyReadBytes = 0; + } + + int readData = m_currentSource->read( data, max ); + if( readData == 0 ) { + m_currentSource = m_currentSource->next(); + if( m_currentSource ) { + m_currentSource->seek(0); + return read( data, max ); // read from next source + } + } + + m_alreadyReadBytes += readData; + + return readData; +} + + +K3bAudioTrack* K3bAudioTrack::copy() const +{ + K3bAudioTrack* track = new K3bAudioTrack(); + + track->m_copy = m_copy; + track->m_preEmp = m_preEmp; + track->m_index0Offset = m_index0Offset; + track->m_cdText = m_cdText; + K3bAudioDataSource* source = m_firstSource; + while( source ) { + track->addSource( source->copy() ); + source = source->next(); + } + + return track; +} + + +K3bAudioTrack* K3bAudioTrack::split( const K3b::Msf& pos ) +{ + if( pos < length() ) { + // search the source + // pos will be the first sector of the new track + K3b::Msf currentPos; + K3bAudioDataSource* source = firstSource(); + while( source && currentPos + source->length() <= pos ) { + currentPos += source->length(); + source = source->next(); + } + + K3bAudioDataSource* splitSource = 0; + if( currentPos > 0 && currentPos == pos ) { + // no need to split a source + splitSource = source; + } + else { + splitSource = source->split( pos - currentPos ); + } + + // the new track should include all sources from splitSource and below + K3bAudioTrack* splitTrack = new K3bAudioTrack(); + splitTrack->m_cdText = m_cdText; + source = splitSource; + while( source ) { + K3bAudioDataSource* addSource = source; + source = source->next(); + splitTrack->addSource( addSource ); + } + + kdDebug() << "(K3bAudioTrack) moving track " << splitTrack << " after this (" << this << ") with parent " << doc() << endl; + splitTrack->moveAfter( this ); + + return splitTrack; + } + else + return 0; +} + + +K3bDevice::Track K3bAudioTrack::toCdTrack() const +{ + if( !inList() ) + return K3bDevice::Track(); + + K3b::Msf firstSector; + K3bAudioTrack* track = doc()->firstTrack(); + while( track != this ) { + firstSector += track->length(); + track = track->next(); + } + + K3bDevice::Track cdTrack( firstSector, + firstSector + length() - 1, + K3bDevice::Track::AUDIO ); + + // FIXME: auch im audiotrack copy permitted + cdTrack.setCopyPermitted( !copyProtection() ); + cdTrack.setPreEmphasis( preEmp() ); + + // FIXME: add indices != 0 + + // no index 0 for the last track. Or should we allow this??? + if( doc()->lastTrack() != this ) + cdTrack.setIndex0( index0() ); + + // FIXME: convert to QCString + // cdTrack.setIsrc( isrc() ); + + return cdTrack; +} + + +void K3bAudioTrack::debug() +{ + kdDebug() << "Track " << this << endl + << " Prev: " << m_prev << endl + << " Next: " << m_next << endl + << " Sources:" << endl; + K3bAudioDataSource* s = m_firstSource; + while( s ) { + kdDebug() << " " << s << " - Prev: " << s->prev() << " Next: " << s->next() << endl; + s = s->next(); + } +} + + + |