private void parseImages() {
String fileLocation = "data/out/" + name + ".png";
File file = new File(fileLocation);
if (file.exists()) {
imageNames.add(fileLocation);
} else {
int p = 1;
fileLocation = "data/out/" + name + "-page" + p + ".png";
file = new File(fileLocation);
while (file.exists()) {
imageNames.add(fileLocation);
++p;
fileLocation = "data/out/" + name + "-page" + p + ".png";
file = new File(fileLocation);
}
}
if (imageNames.isEmpty()) {
System.err.println("Lilypond failed to produce any files");
}
pages = imageNames.size();
}
private void parseMidi() {
try {
// Allow for alternate file extensions of midi files.
File midiFile = new File("data/out/" + name + ".midi");
File altFile = new File("data/out/" + name + ".mid");
if (!midiFile.exists() && altFile.exists()) {
midiFile = altFile;
}
// parse midi
Sequence sequence = MidiSystem.getSequence(midiFile);
resolution = sequence.getResolution();
for (int i = 0; i < staves; ++i) {
currNotes[i] = notes[i].iterator();
}
MidiParser parser = new MidiParser();
parser.addParserListener(this);
parser.parse(sequence);
// initialize any rests trailing at the end
for (int i = 0; i < staves; ++i) {
Vector<Chord> currChords = chords[i];
Iterator<NotePanel> currNote = currNotes[i];
long tempTime = 0;
for (int j = currChords.size() - 1; j >= 0; --j) {
if (!currChords.get(j).isTie()) {
tempTime = currChords.get(j).getTime() + currChords.get(j).getDuration();
break;
}
}
while (currNote.hasNext()) {
NotePanel notePanel = currNote.next();
if (notePanel.getNote() != null) {
notePanel.setTime(tempTime).setTempo(tempo);
tempTime += notePanel.getDuration();
Chord chord = new Chord(notePanel);
currChords.add(chord);
}
}
}
// attach staff lines
for (int layer = 0; layer < staves; ++layer) {
NotePanel prevNote = null;
for (Chord chord : chords[layer]) {
for (NotePanel note : chord.notes) {
double staffLine = 0.0;
for (double line : staffLines.get(layer).get(note.page - 1)) {
if (staffLine < 0.0001 || Math.abs(staffLine - note.y) > Math.abs(line - note.y)) {
staffLine = line;
}
}
if (prevNote != null) {
if (Math.abs(staffLine - prevNote.staffLine) > 0.001) {
// either reached the end of the line, or the note is really high/low
// make a hacky guess if the note is really high/low,
// and if so, set its staffline equal to the previous note's
if (prevNote.x < note.x + 1.0) {
note.setStaffLine(prevNote.staffLine);
prevNote = note;
continue;
}
}
}
note.setStaffLine(staffLine);
prevNote = note;
}
}
}
} catch (Exception e) {
System.err.println("Parsing the score from Lilypond's output has failed. Error: ");
e.printStackTrace();
}
}
// ParserListener methods
public void noteEvent(Note note) {
if (layer >= staves) {
return;
}
// System.out.println(note.getMusicString() + " " + note.getMillisDuration() + " " +
// note.getDecimalDuration());
Vector<Chord> currChords = chords[layer];
Iterator<NotePanel> currNote = currNotes[layer];
if (!currNote.hasNext()) {
System.err.println("Received noteEvent, but no PostScript notes are left");
return;
}
if (note.getMillisDuration() > 0) {
NotePanel notePanel = currNote.next();
// time the last chord ended
long tempTime = 0;
for (int i = currChords.size() - 1; i >= 0; --i) {
if (!currChords.get(i).isTie()) {
tempTime = currChords.get(i).getTime() + currChords.get(i).getDuration();
break;
}
}
if (notePanel.isTie) {
Chord chord = new Chord();
// for each note in the last chord, set the next note as a tied note
for (int i = 0; i < currChords.lastElement().size(); ++i) {
notePanel.setTie(true).setTime(Math.min(tempTime, time - 1)).setTempo(tempo);
chord.addNote(notePanel);
notePanel = currNote.next();
}
currChords.add(chord);
}
while (notePanel.isRest) {
notePanel
.setTime(Math.min(tempTime, time - 1)) // hack, in case the rest should be trimmed
.setTempo(tempo);
tempTime += notePanel.getDuration();
Chord chord = new Chord(notePanel);
currChords.add(chord);
// System.out.println("REST: " + notePanel.getMusicString() + " " +
// notePanel.getDuration());
notePanel = currNote.next();
}
notePanel.setNote(note).setTime(time).setTempo(tempo);
if (currChords.isEmpty() || currChords.lastElement().getTime() != time) {
Chord chord = new Chord(notePanel);
currChords.add(chord);
} else {
currChords.lastElement().addNote(notePanel);
}
}
}
private void parsePostScript() {
try {
BufferedReader PSIn = new BufferedReader(new FileReader("data/out/" + name + ".ps"));
// parse header
while (PSIn.ready()) {
String S = PSIn.readLine().trim();
if (S.contains("EndSetup")) {
break;
} else {
if (S.startsWith("/magfont")) {
fontInfo.add(S);
} else if (S.startsWith("/lily-output-units")) {
outputUnits = Float.parseFloat(S.split(" ")[1]);
for (String T : fontInfo) {
addFont(
T.split(" ")[0].substring(1),
T.split(" ")[2].substring(1),
(float) outputUnits * Float.parseFloat(T.split(" ")[3]));
}
} else if (S.startsWith("/output-scale")) {
outputScale = Float.parseFloat(S.split(" ")[1]);
} else if (S.startsWith("/staff-height")) {
staffLineHeight = Float.parseFloat(S.split(" ")[1]) / 4;
}
}
}
scale = outputUnits * outputScale;
for (int layer = 0; layer < staves; ++layer) {
Vector<Vector<Double>> staff = new Vector<Vector<Double>>();
for (int page = 0; page < pages; ++page) {
staff.add(new Vector<Double>());
}
staffLines.add(staff);
}
Vector<Double> cStaffs = new Vector<Double>();
String prevLine = "";
int currPage = 1;
// parse the rest of the file
while (PSIn.ready()) {
String S = PSIn.readLine().trim();
if (S.contains("noteheads") || S.contains("rests")) {
// extract coordinate, glyph, and font information
String T[] = S.split(" ");
NotePanel N = new NotePanel();
N.setCoordinates(Double.parseDouble(T[0]), -Double.parseDouble(T[1]))
.setGlyph(T[4].substring(1))
.setGonville(fonts.get(T[3]));
if (S.contains("rests")) {
T = S.substring(S.lastIndexOf("rests")).split("[. ]");
N.setRest(Integer.parseInt(T[1]));
}
T = prevLine.substring(prevLine.lastIndexOf(this.name + ".ly")).split(":");
N.setLine(Integer.parseInt(T[1]), Integer.parseInt(T[2])).setPage(currPage);
if (N.lyLine < staffLine || staffLine == 0) {
notes[0].add(N);
} else {
notes[1].add(N);
}
} else if (S.contains("accidentals")) {
// String T[] = S.split(" ");
// lastNote.setAccidentals(Double.parseDouble(T[0]), -Double.parseDouble(T[1]),
// T[4].substring(1), T[3]);
} else if (S.startsWith("%%Page:")) {
currPage = Integer.parseInt(S.split(" ")[1]);
}
if (S.contains("draw_line")) {
cStaffs.add(-Double.parseDouble(S.split(" ")[1]));
if (cStaffs.size() >= 5 * staves) {
// found a full staff
Collections.sort(cStaffs);
staffLines.get(0).get(currPage - 1).add(cStaffs.get(4) + staffLineHeight);
if (staves > 1) {
staffLines.get(1).get(currPage - 1).add(cStaffs.get(5) - staffLineHeight);
}
cStaffs.clear();
}
} else if (!S.contains("draw_round_box")) {
cStaffs.clear();
}
if (S.contains(this.name + ".ly")) {
prevLine = S;
}
}
// sort the notes we found from the PS by where they occurred in the .ly
for (int i = 0; i < staves; ++i) {
Collections.sort(notes[i]);
}
// find tied notes
for (int i = 0; i < staves; ++i) {
int cTie = 0;
int cNote = 0;
while (cTie < ties.size() && cNote < notes[i].size() - 1) {
ArrayList<Integer> tie = ties.get(cTie);
NotePanel prevNote = notes[i].get(cNote);
NotePanel nextNote = notes[i].get(cNote + 1);
if (pairComp(tie.get(0), tie.get(1), prevNote.lyLine, prevNote.lyNumber) != -1
&& pairComp(tie.get(0), tie.get(1), nextNote.lyLine, nextNote.lyNumber) != 1) {
// tie is located between these notes
nextNote.setTie(true);
++cNote;
++cTie;
} else if (pairComp(tie.get(0), tie.get(1), prevNote.lyLine, prevNote.lyNumber) != -1) {
++cNote;
} else {
++cTie;
}
}
}
PSIn.close();
} catch (Exception e) {
System.err.println("Parsing the score from Lilypond's output has failed. Error: ");
e.printStackTrace();
}
}