コード例 #1
0
ファイル: StaffSystem.cs プロジェクト: svejdo1/niffty
        /** Return the duration of this staff system.  This is the start time
         * difference between the first and last measure start time slices in the
         * first staff plus the duration of the last measure.  (It is assumed that all
         * staves in the staff system have the same duration.)
         * This is used to compute the screen hotspots of the measure starts.
         */
        public Rational getDuration()
        {
            if (_duration != null)
            {
                return(_duration);
            }

            if (getStaffCount() == 0 || getStaff(0).getMeasureStartCount() == 0)
            {
                // There are no staffs or time slices!  This is unexpected.  Just return 0.
                // DEBUG:  maybe this should be handled more gracefully.
                _duration = new Rational(0, 1);
                return(_duration);
            }
            Staff staff = getStaff(0);

            MeasureStartTimeSlice lastMeasureStart =
                staff.getMeasureStart(staff.getMeasureStartCount() - 1);

            IntRatio result = new IntRatio(lastMeasureStart.getStartTime());

            result.sub(getStartTime());
            result.add(lastMeasureStart.getDuration());

            _duration = new Rational(result);
            return(_duration);
        }
コード例 #2
0
        /** Return the duration of this measure.  If this MeasureStartTimeSlice has
         * a following MeasureStartTimeSlice in the Staff, the duration is the start time
         * difference of this measure start and the following measure start.
         * If no following measure start, the duration of this measure is
         * the start time of the last event TimeSlice.  Note that this assumes
         * the last event TimeSlice has zero duration, but this is reasonable
         * since the last event TimeSlice usually just holds a bar line.
         */
        public Rational getDuration()
        {
            if (_duration != null)
            {
                return(_duration);
            }

            if ((getIndex() + 1) >= getParentStaff().getMeasureStartCount())
            {
                // This is the last measure start
                if (getTimeSliceCount() == 0)
                {
                    // No time slices, just set duration to zero
                    _duration = new Rational(0, 1);
                }
                else
                {
                    // DEBUG: This assumes the event time slices are ordered. Maybe check this.
                    _duration = getTimeSlice(getTimeSliceCount() - 1).getStartTime();
                }
            }
            else
            {
                // Compute the start time difference between the next measure and this
                // DEBUG: This assumes that the measure start time slices are ordered. Maybe check this.
                IntRatio result = new IntRatio
                                      (getParentStaff().getMeasureStart(getIndex() + 1).getStartTime());
                result.sub(getStartTime());
                _duration = new Rational(result);
            }

            return(_duration);
        }
コード例 #3
0
        /** Return the duration of this measure.  If this MeasureStartTimeSlice has
         * a following MeasureStartTimeSlice in the Staff, the duration is the start time
         * difference of this measure start and the following measure start.
         * If no following measure start, the duration of this measure is
         * the start time of the last event TimeSlice.  Note that this assumes
         * the last event TimeSlice has zero duration, but this is reasonable
         * since the last event TimeSlice usually just holds a bar line.
         */
        public Rational getDuration()
        {
            if (_duration != null)
            return _duration;

              if ((getIndex() + 1) >= getParentStaff().getMeasureStartCount()) {
            // This is the last measure start
            if (getTimeSliceCount() == 0)
              // No time slices, just set duration to zero
              _duration = new Rational(0, 1);
            else
              // DEBUG: This assumes the event time slices are ordered. Maybe check this.
              _duration = getTimeSlice(getTimeSliceCount() - 1).getStartTime();
              } else {
            // Compute the start time difference between the next measure and this
            // DEBUG: This assumes that the measure start time slices are ordered. Maybe check this.
            IntRatio result = new IntRatio
              (getParentStaff().getMeasureStart(getIndex() + 1).getStartTime());
            result.sub(getStartTime());
            _duration = new Rational(result);
              }

              return _duration;
        }
コード例 #4
0
ファイル: StaffSystem.cs プロジェクト: svejdo1/niffty
        /** Return the duration of this staff system.  This is the start time
         * difference between the first and last measure start time slices in the
         * first staff plus the duration of the last measure.  (It is assumed that all
         * staves in the staff system have the same duration.)
         * This is used to compute the screen hotspots of the measure starts.
         */
        public Rational getDuration()
        {
            if (_duration != null)
            return _duration;

              if (getStaffCount() == 0 || getStaff(0).getMeasureStartCount() == 0) {
            // There are no staffs or time slices!  This is unexpected.  Just return 0.
            // DEBUG:  maybe this should be handled more gracefully.
            _duration = new Rational(0, 1);
            return _duration;
              }
              Staff staff = getStaff(0);

              MeasureStartTimeSlice lastMeasureStart =
            staff.getMeasureStart(staff.getMeasureStartCount() - 1);

              IntRatio result = new IntRatio(lastMeasureStart.getStartTime());
              result.sub(getStartTime());
              result.add(lastMeasureStart.getDuration());

              _duration = new Rational(result);
              return _duration;
        }