audacia/src/Clipboard.cpp
Paul Licameli a93c4472f5 TrackList has back-pointer to project...
... and Track::GetOwner() is publicized, so that now you can find the
the AudacityProject, if any, that owns a given Track; this will help eliminate
some uses of GetActiveProject
2020-01-06 14:14:21 -05:00

57 lines
1.1 KiB
C++

/**********************************************************************
Audacity: A Digital Audio Editor
Clipboard.cpp
*//*******************************************************************/
#include "Clipboard.h"
#include "Track.h"
wxDEFINE_EVENT( EVT_CLIPBOARD_CHANGE, wxCommandEvent);
Clipboard::Clipboard()
: mTracks { TrackList::Create( nullptr ) }
{
}
Clipboard::~Clipboard() = default;
Clipboard &Clipboard::Get()
{
static Clipboard instance;
return instance;
}
//static
const TrackList &Clipboard::GetTracks() const
{
return *mTracks;
}
void Clipboard::Clear()
{
mT0 = 0.0;
mT1 = 0.0;
mProject = nullptr;
mTracks->Clear();
// Emit an event for listeners
AddPendingEvent( wxCommandEvent{ EVT_CLIPBOARD_CHANGE } );
}
void Clipboard::Assign( TrackList && newContents,
double t0, double t1, AudacityProject *pProject )
{
newContents.Swap( *mTracks );
newContents.Clear();
mT0 = t0;
mT1 = t1;
mProject = pProject;
// Emit an event for listeners
AddPendingEvent( wxCommandEvent{ EVT_CLIPBOARD_CHANGE } );
}