anonymous_namespace{Track.cpp}::TrackListRestorer Struct Reference

Inheritance diagram for anonymous_namespace{Track.cpp}::TrackListRestorer:

Collaboration diagram for anonymous_namespace{Track.cpp}::TrackListRestorer:

Public Member Functions
	TrackListRestorer (AudacityProject &project)
void	RestoreUndoRedoState (AudacityProject &project) override
	Modify the project when undoing or redoing to some state in history. More...
bool	CanUndoOrRedo (const AudacityProject &project) override
	Whether undo or redo is now permitted; default returns true. More...
Public Member Functions inherited from UndoStateExtension
virtual	~UndoStateExtension ()
virtual void	RestoreUndoRedoState (AudacityProject &project)=0
	Modify the project when undoing or redoing to some state in history. More...
virtual bool	CanUndoOrRedo (const AudacityProject &project)
	Whether undo or redo is now permitted; default returns true. More...

Public Attributes
const std::shared_ptr< TrackList >	mpTracks

Detailed Description

Definition at line 1376 of file Track.cpp.

Constructor & Destructor Documentation

TrackListRestorer()

anonymous_namespace{Track.cpp}::TrackListRestorer::TrackListRestorer ( AudacityProject &  project )

inline

Definition at line 1377 of file Track.cpp.

      : mpTracks{ TrackList::Create(nullptr) }
   {
      for (auto pTrack : TrackList::Get(project)) {
         if (pTrack->GetId() == TrackId{})
            // Don't copy a pending added track
            continue;
         mpTracks->Append(std::move(*pTrack->Duplicate()));
      }
   }

References TrackList::Append(), TrackList::Get(), and project.

Here is the call graph for this function:

Member Function Documentation

CanUndoOrRedo()

bool anonymous_namespace{Track.cpp}::TrackListRestorer::CanUndoOrRedo ( const AudacityProject &  project )

inlineoverridevirtual

Whether undo or redo is now permitted; default returns true.

Reimplemented from UndoStateExtension.

Definition at line 1393 of file Track.cpp.

                                                               {
      return !TrackList::Get(project).HasPendingTracks();
   }

References TrackList::Get(), TrackList::HasPendingTracks(), and project.

Here is the call graph for this function:

RestoreUndoRedoState()

void anonymous_namespace{Track.cpp}::TrackListRestorer::RestoreUndoRedoState ( AudacityProject &  project )

inlineoverridevirtual

Modify the project when undoing or redoing to some state in history.

Implements UndoStateExtension.

Definition at line 1387 of file Track.cpp.

                                                                {
      auto &dstTracks = TrackList::Get(project);
      dstTracks.Clear();
      for (auto pTrack : *mpTracks)
         dstTracks.Append(std::move(*pTrack->Duplicate()));
   }

References TrackList::Get(), and project.

Here is the call graph for this function:

Member Data Documentation

mpTracks

const std::shared_ptr<TrackList> anonymous_namespace{Track.cpp}::TrackListRestorer::mpTracks

Definition at line 1396 of file Track.cpp.

---

The documentation for this struct was generated from the following file:

• Track.cpp