audacia/src/import/ImportMIDI.cpp

129 lines
3.5 KiB
C++

/**********************************************************************
Audacity: A Digital Audio Editor
ImportMIDI.cpp
Dominic Mazzoni
**********************************************************************/
#include "ImportMIDI.h"
#include <wx/defs.h>
#include <wx/ffile.h>
#include <wx/frame.h>
#include <wx/intl.h>
#if defined(USE_MIDI)
#include "../lib-src/header-substitutes/allegro.h"
//#include "strparse.h"
//#include "mfmidi.h"
#include "../NoteTrack.h"
#include "../Project.h"
#include "../ProjectFileIO.h"
#include "../ProjectHistory.h"
#include "../ProjectWindow.h"
#include "../SelectUtilities.h"
#include "../widgets/AudacityMessageBox.h"
#include "../widgets/FileHistory.h"
// Given an existing project, try to import into it, return true on success
bool DoImportMIDI( AudacityProject &project, const FilePath &fileName )
{
auto &projectFileIO = ProjectFileIO::Get( project );
auto &tracks = TrackList::Get( project );
auto newTrack = std::make_shared<NoteTrack>();
bool initiallyEmpty = tracks.empty();
if (::ImportMIDI(fileName, newTrack.get())) {
SelectUtilities::SelectNone( project );
auto pTrack = tracks.Add( newTrack );
pTrack->SetSelected(true);
// Fix the bug 2109.
// In case the project had soloed tracks before importing,
// the newly imported track is muted.
const bool projectHasSolo =
!(tracks.Any<PlayableTrack>() + &PlayableTrack::GetSolo).empty();
#ifdef EXPERIMENTAL_MIDI_OUT
if (projectHasSolo)
pTrack->SetMute(true);
#endif
ProjectHistory::Get( project )
.PushState(
XO("Imported MIDI from '%s'").Format( fileName ),
XO("Import MIDI")
);
ProjectWindow::Get( project ).ZoomAfterImport(pTrack);
FileHistory::Global().Append(fileName);
// If the project was clean and temporary (not permanently saved), then set
// the filename to the just imported path.
if (initiallyEmpty && projectFileIO.IsTemporary()) {
wxFileName fn(fileName);
project.SetProjectName(fn.GetName());
project.SetInitialImportPath(fn.GetPath());
projectFileIO.SetProjectTitle();
}
return true;
}
else
return false;
}
bool ImportMIDI(const FilePath &fName, NoteTrack * dest)
{
if (fName.length() <= 4){
AudacityMessageBox(
XO("Could not open file %s: Filename too short.").Format( fName ) );
return false;
}
bool is_midi = false;
if (fName.Right(4).CmpNoCase(wxT(".mid")) == 0 || fName.Right(5).CmpNoCase(wxT(".midi")) == 0)
is_midi = true;
else if(fName.Right(4).CmpNoCase(wxT(".gro")) != 0) {
AudacityMessageBox(
XO("Could not open file %s: Incorrect filetype.").Format( fName ) );
return false;
}
wxFFile mf(fName, wxT("rb"));
if (!mf.IsOpened()) {
AudacityMessageBox(
XO("Could not open file %s.").Format( fName ) );
return false;
}
double offset = 0.0;
auto new_seq = std::make_unique<Alg_seq>(fName.mb_str(), is_midi, &offset);
//Should we also check if(seq->tracks() == 0) ?
if(new_seq->get_read_error() == alg_error_open){
AudacityMessageBox(
XO("Could not open file %s.").Format( fName ) );
mf.Close();
return false;
}
dest->SetSequence(std::move(new_seq));
dest->SetOffset(offset);
wxString trackNameBase = fName.AfterLast(wxFILE_SEP_PATH).BeforeLast('.');
dest->SetName(trackNameBase);
mf.Close();
dest->ZoomAllNotes();
return true;
}
#endif