Beispiel #1
0
  private void parseLilyPond() {
    lilyHeader = new LilyHeader(name);
    try {
      BufferedReader LYIn = new BufferedReader(new FileReader("data/ly/" + name + ".ly"));
      int line = 1;
      while (LYIn.ready()) {
        String S = LYIn.readLine();

        // TODO: detect new staff location better
        if ((S.contains("\\new Staff") && (S.contains("down") || S.contains("lower"))
            || S.contains("NEW STAFF"))) {
          staffLine = line;
          staves = 2;
        }

        for (int i = 0; i < S.length(); ++i) {
          if (S.charAt(i) == '~') {
            ArrayList<Integer> t = new ArrayList<Integer>();
            t.add(line);
            t.add(i);
            ties.add(t);
          }
        }

        ++line;
      }

      LYIn.close();
    } catch (Exception e) {
      System.err.println("Parsing the score from Lilypond's output has failed. Error: ");
      e.printStackTrace();
    }

    notes = (Vector<NotePanel>[]) new Vector[staves];
    chords = (Vector<Chord>[]) new Vector[staves];
    currNotes = (Iterator<NotePanel>[]) new Iterator[staves];
    for (int i = 0; i < staves; ++i) {
      notes[i] = new Vector<NotePanel>();
      chords[i] = new Vector<Chord>();
      currNotes[i] = notes[i].iterator();
    }
  }
Beispiel #2
0
  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();
    }
  }