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display message if project is empty and user tries to export it (closes #2091056)

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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1571 0778d3d1-df1d-0410-868b-ea421aaaa00d
This commit is contained in:
Tobias Doerffel
2008-09-07 12:54:23 +00:00
parent aa12ee5082
commit 408ab3fea5
5 changed files with 45 additions and 12 deletions
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34
src/core/track_container.cpp
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@@ -130,6 +130,24 @@ void trackContainer::loadSettings( const QDomElement & _this )
int trackContainer::countTracks( track::TrackTypes _tt ) const
{
int cnt = 0;
m_tracksMutex.lockForRead();
for( int i = 0; i < m_tracks.size(); ++i )
{
if( m_tracks[i]->type() == _tt || _tt == track::NumTrackTypes )
{
++cnt;
}
}
m_tracksMutex.unlock();
return( cnt );
}
void trackContainer::addTrack( track * _track )
{
if( _track->type() != track::HiddenAutomationTrack )
@@ -163,7 +181,6 @@ void trackContainer::removeTrack( track * _track )
void trackContainer::updateAfterTrackAdd( void )
{
}
@@ -171,7 +188,6 @@ void trackContainer::updateAfterTrackAdd( void )
void trackContainer::clearAllTracks( void )
{
//m_tracksMutex.lockForWrite();
@@ -185,19 +201,17 @@ void trackContainer::clearAllTracks( void )
int trackContainer::countTracks( track::TrackTypes _tt ) const
bool trackContainer::isEmpty( void ) const
{
int cnt = 0;
m_tracksMutex.lockForRead();
for( int i = 0; i < m_tracks.size(); ++i )
for( trackList::const_iterator it = m_tracks.begin();
it != m_tracks.end(); ++it )
{
if( m_tracks[i]->type() == _tt || _tt == track::NumTrackTypes )
if( !( *it )->getTCOs().isEmpty() )
{
++cnt;
return false;
}
}
m_tracksMutex.unlock();
return( cnt );
return true;
}