150 lines
4.0 KiB
C#
150 lines
4.0 KiB
C#
#region license
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// This file is part of Vocaluxe.
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//
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// Vocaluxe is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Vocaluxe is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Vocaluxe. If not, see <http://www.gnu.org/licenses/>.
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#endregion
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using System.Collections.Generic;
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using System.Linq;
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namespace VocaluxeLib.Songs
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{
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public class CLineBase<T> where T : CBaseNote
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{
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protected readonly List<T> _Notes = new List<T>();
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#region Properties
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public int FirstNoteBeat
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{
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get { return (NoteCount == 0) ? int.MaxValue : _Notes[0].StartBeat; }
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}
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public int LastNoteBeat
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{
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get { return (NoteCount == 0) ? int.MinValue : _Notes[NoteCount - 1].EndBeat; }
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}
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public int NoteCount
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{
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get { return _Notes.Count; }
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}
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public T[] Notes
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{
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get { return _Notes.ToArray(); }
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}
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public T FirstNote
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{
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get { return NoteCount > 0 ? _Notes[0] : null; }
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}
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public T LastNote
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{
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get { return NoteCount > 0 ? _Notes[NoteCount - 1] : null; }
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}
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public int Points
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{
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get { return _Notes.Sum(note => note.Points); }
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}
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public int BaseLine
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{
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get
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{
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if (_Notes.Count == 0)
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return 0;
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int min = _Notes.Min(note => note.Tone);
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int max = _Notes.Max(note => note.Tone);
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return min - (max - min) / 4;
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}
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}
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#endregion Properties
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#region Methods
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/// <summary>
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/// Find last note with StartBeat
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/// </summary>
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/// <param name="beat"></param>
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/// <returns>Note index of last note with StartBeat or -1 if all notes start after beat</returns>
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public int FindPreviousNote(int beat)
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{
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//If no notes -> No previous note
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if (_Notes.Count == 0)
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return -1;
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int start = 0;
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int end = _Notes.Count - 1;
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//Ensure that start.StartBeat<=Beat && end.StartBeat>Beat
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if (_Notes[0].StartBeat > beat)
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return -1;
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if (_Notes[end].StartBeat <= beat)
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return end;
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//Binary search
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while (end - start > 1)
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{
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int mid = (start + end) / 2;
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if (_Notes[mid].StartBeat <= beat)
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start = mid;
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else
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end = mid;
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}
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return start;
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}
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public virtual bool AddNote(T note)
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{
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if (_Notes.Count == 0)
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_Notes.Add(note);
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else
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{
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int insPos = FindPreviousNote(note.StartBeat);
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_Notes.Insert(insPos + 1, note);
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}
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return true;
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}
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public bool DeleteNote(int index)
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{
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if (_Notes.Count > index)
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{
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_Notes.RemoveAt(index);
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return true;
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}
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return false;
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}
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public bool ReplaceNote(int index, T note)
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{
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if (_Notes.Count > index)
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{
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_Notes.RemoveAt(index);
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return AddNote(note);
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}
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return false;
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}
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public void IncLastNoteLength()
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{
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if (_Notes.Count > 0)
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_Notes[NoteCount - 1].Duration++;
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}
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public void DeleteAllNotes()
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{
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_Notes.Clear();
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}
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#endregion Methods
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}
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} |