public static void GetChord(List<Note> chordNotes, out Note BaseNote, out ChordType type)
{
List<Note> notes = PrepareNotes(chordNotes);
int typeIndex = GetChordType(notes);
if (typeIndex < chordTypes.Length)
{
BaseNote = notes[0];
type = chordTypes[typeIndex];
}
else if (chordNotes.Count <= 7)
{
bool unknown = true;
var possibleChord = new List<Note>(notes);
foreach (var perm in Utils.GeneratePermutation(possibleChord))
{
for (int k = 1; k < perm.Count; ++k) // Убираем промежутки между нотами ( > 12 полутонов )
{
if (perm[k].Tone > perm[k - 1].Tone)
{
perm[k] = new Note(perm[k - 1].Octave, perm[k].Tone);
}
else
{
perm[k] = new Note((byte) (perm[k - 1].Octave + 1), perm[k].Tone);
}
}
typeIndex = GetChordType(possibleChord);
if (typeIndex < chordTypes.Length)
{
unknown = false;
break; // Мы нашли что нужно, выходим
}
}
if (!unknown)
{
BaseNote = possibleChord[0];
type = chordTypes[typeIndex];
}
else
{
throw new Exception("неизвестный аккорд");
}
}
else
{
throw new Exception("неизвестный аккорд");
}
}
public int GetFretForNote(Note note)
{
int fret = -1; // -1 означает, что нельзя сыграть ноту на этой струне
if (open <= note)
{
int octDiff = note.Octave - open.Octave;
int noteDiff = note.Tone - open.Tone;
fret = octDiff*12 + noteDiff;
}
return fret;
}
public List<Note> BuildChord(Note baseNote)
{
var result = new List<Note>();
result.Add(baseNote);
Note current = baseNote;
foreach (int interval in intervals)
{
current = current + interval;
result.Add(current);
}
return result;
}
public List<Tuple<byte, byte>> GetFretsForNote(Note note)
{
var result = new List<Tuple<byte, byte>>(); // 1-е значение номер стпуны (от 1 до 6), 2-е - номер лада ( 0 - открытая струна)
byte currentString = 0;
foreach (GuitarString str in strs)
{
int fret = str.GetFretForNote(note);
if (fret != -1) // Если на этой струне можно сыграть заданную ноту
{
result.Add(new Tuple<byte, byte>(currentString, (byte) fret));
}
++currentString;
}
return result;
}
public bool IsNotePlayed(Note note)
{
return _playingTones.Contains(note.Id);
}
private void ToggleSelectedChord()
{
if (CChords.SelectedIndex >= 0 && CChordMods.SelectedIndex >= 0)
{
StopPlayAll();
var chord = CChords.SelectedValue as string;
int mod = CChordMods.SelectedIndex;
chord = chord.Replace("#", "d");
var baseNote = new Note(3, chord.ConvertToEnum<Tones>());
List<Note> lst = Chords.chordTypes[mod].BuildChord(baseNote);
foreach (Note chordNote in lst)
{
ToggleNote(chordNote);
}
}
}
// major - объект лада, который необходимо подсветить как основной
private void HighlightNote(Note note, Shape major = null)
{
// ReSharper disable ConditionIsAlwaysTrueOrFalse
Color newColor = (note.Octave >= StartOctave && note.Octave <= EndOctave) ? GetColor() : Colors.Black;
// ReSharper restore ConditionIsAlwaysTrueOrFalse
var baseColor = new SolidColorBrush(newColor);
Color tmp = newColor;
tmp.A = InactiveFretAlpha;
var highlighted = new SolidColorBrush(tmp);
List<Tuple<byte, byte>> lst = _guitar.GetFretsForNote(note);
foreach (var objName in lst)
{
object o = LogicalTreeHelper.FindLogicalNode(FretsGrid,
GenerateFretName(objName.Item1, objName.Item2));
if (o != null)
{
((Shape) o).Fill = highlighted;
}
}
if (major != null)
{
major.Fill = baseColor;
}
string str = GenerateKeyName(note);
TChordName.Text = note.ToString().Replace('#', '♯');
var bNote = (TextBlock) LogicalTreeHelper.FindLogicalNode(KeysGrid, str); // имя клавиши имеет след. вид: "Тон[d]Октава"
if (bNote != null)
{
bNote.Background = baseColor;
bNote.Focus();
}
}
private string GenerateKeyName(Note note)
{
return note.ToString().Replace('#', 'd');
}
private void DehightlightNote(Note note)
{
List<Tuple<byte, byte>> lst = _guitar.GetFretsForNote(note);
foreach (var objName in lst)
{
object o = LogicalTreeHelper.FindLogicalNode(FretsGrid,
GenerateFretName(objName.Item1, objName.Item2));
if (o != null)
{
var shape = o as Shape;
Brush brushCopy = shape.Fill.Clone();
shape.Fill = brushCopy;
var fretFadeAnimation = new ColorAnimation(((SolidColorBrush) shape.Fill).Color, _inactiveFret.Color, new Duration(TimeSpan.FromSeconds(2)));
var easing = new QuinticEase {EasingMode = EasingMode.EaseOut};
fretFadeAnimation.EasingFunction = easing;
var fretStoryboard = new Storyboard();
fretStoryboard.Children.Add(fretFadeAnimation);
string elementName = shape.Name;
if (FindName(elementName) == null)
{
RegisterName(elementName, shape);
}
Storyboard.SetTargetName(fretFadeAnimation, elementName);
Storyboard.SetTargetProperty(fretFadeAnimation, new PropertyPath("Fill.Color"));
fretStoryboard.Begin(this);
}
}
TChordName.Text = "";
string str = GenerateKeyName(note);
var bNote = (TextBlock) LogicalTreeHelper.FindLogicalNode(KeysGrid, str);
if (bNote != null)
{
FreeColor(((SolidColorBrush) bNote.Background).Color);
SolidColorBrush targetColor = str.Length == 2 ? _genericColor : _diezColor;
Brush brushCopy = bNote.Background.Clone();
bNote.Background = brushCopy;
var noteFadeAnimation = new ColorAnimation(((SolidColorBrush) bNote.Background).Color, targetColor.Color, new Duration(TimeSpan.FromSeconds(3)));
var easing = new QuinticEase {EasingMode = EasingMode.EaseOut};
noteFadeAnimation.EasingFunction = easing;
var noteStoryboadrd = new Storyboard();
noteStoryboadrd.Children.Add(noteFadeAnimation);
if (FindName(bNote.Name) == null)
{
RegisterName(bNote.Name, bNote);
}
Storyboard.SetTargetName(noteFadeAnimation, bNote.Name);
Storyboard.SetTargetProperty(noteFadeAnimation, new PropertyPath("Background.Color"));
noteStoryboadrd.Begin(this);
}
}
internal void ToggleNote(Note note, Shape major = null)
{
if (_toggled.Contains(note))
{
DehightlightNote(note);
_toggled.Remove(note);
}
else
{
HighlightNote(note, major);
_toggled.Add(note);
}
_toggled = _toggled.OrderBy(x => x.Id).ToList();
UpdateChord();
}
public MainWindow()
{
InitializeComponent();
_player = new Player(this);
WindowStartupLocation = WindowStartupLocation.CenterScreen;
CInstrument.ItemsSource = InstrumentNames;
CTunes.ItemsSource = _tunes;
CChordMods.ItemsSource = Chords.chordMods;
CChords.ItemsSource = Chords.chordsBases;
for (double speed = 0.25; speed <= 2.0; speed += 0.25)
{
CPlaySpeed.Items.Add(speed);
}
int devicesCount = MidiIn.NumberOfDevices;
for (int i = 0; i < devicesCount; i++)
{
MidiInCapabilities device = MidiIn.DeviceInfo(i);
CSelectedInput.Items.Add(device);
}
#region Генерация клавиш пианино
int keyPosition = KeysOffset;
for (byte octave = StartOctave; octave <= EndOctave; ++octave)
{
for (int i = 0; i < 12; ++i) // 12 полутонов в октаве
{
var currentKey = new TextBlock();
var note = new Note(octave, (Tones) i);
currentKey.Text = note.ToString();
currentKey.Name = GenerateKeyName(note);
if (!note.isDiez()) //Если не диез
{
currentKey.Width = KeyWidth;
currentKey.Height = KeyHeight;
currentKey.Background = _genericColor;
currentKey.Margin = new Thickness(keyPosition, 0, 0, 0);
currentKey.Padding = new Thickness(0, 130, 0, 0);
currentKey.SetValue(Panel.ZIndexProperty, 0);
keyPosition += KeyWidth + KeysOffset;
currentKey.Foreground = Brushes.Black;
currentKey.FontSize = 14;
}
else
{
currentKey.Width = DiezWiddth;
currentKey.Height = DiezHeight;
currentKey.Background = _diezColor;
currentKey.Margin = new Thickness(keyPosition - DiezWiddth/2 + KeysOffset/2,
0, 0, 0);
currentKey.Padding = new Thickness(0, 75, 0, 0);
currentKey.SetValue(Panel.ZIndexProperty, 1);
currentKey.Foreground = Brushes.White;
currentKey.FontSize = 10;
}
currentKey.TextAlignment = TextAlignment.Center;
currentKey.FontWeight = FontWeights.Bold;
currentKey.Focusable = true;
currentKey.HorizontalAlignment = HorizontalAlignment.Left;
currentKey.VerticalAlignment = VerticalAlignment.Top;
currentKey.PreviewMouseLeftButtonDown += PianoKeyDown;
currentKey.PreviewMouseLeftButtonUp += PianoKeyUp;
currentKey.MouseLeave += PianoKeyLeave;
currentKey.PreviewMouseRightButtonUp += KeyToggled;
KeysGrid.Children.Add(currentKey);
}
}
#endregion
#region Генерация ладов для гитары
for (byte guitarString = 0; guitarString < 6; ++guitarString)
{
for (byte fret = 0; fret < FretsCount; ++fret)
{
Shape currentFret;
if (fret != 0)
{
currentFret = new Ellipse {Margin = new Thickness(FretOffset)};
}
else
{
currentFret = new Rectangle {Margin = new Thickness(0)};
}
currentFret.Name = GenerateFretName(guitarString, fret);
currentFret.Stroke = _fretStroke;
currentFret.Fill = _inactiveFret;
FretsGrid.Children.Add(currentFret);
currentFret.SetValue(Grid.ColumnProperty, (int) fret);
currentFret.SetValue(Grid.RowProperty, (int) guitarString);
currentFret.PreviewMouseLeftButtonDown += FretMouseDown;
currentFret.PreviewMouseLeftButtonUp += FretMouseUp;
currentFret.MouseLeave += FretMouseLeave;
currentFret.PreviewMouseRightButtonUp += FretToggled;
}
}
#endregion
}
private static List<Note> PrepareNotes(List<Note> notes)
{
var tmp = new List<Note>();
bool finded = false;
for (int i = 0; i < notes.Count; ++i)
{
finded = false;
Note note = notes[i];
for (int j = 0; j < tmp.Count; ++j)
{
if (note.Tone == tmp[j].Tone)
{
finded = true;
break;
}
}
if (!finded)
{
tmp.Add(note);
}
}
if (tmp.Count == 1 && notes.Count > 1)
{
return notes;
}
byte lowest = tmp[0].Octave;
Tones lowesTone = tmp[0].Tone;
for (int i = 0; i < tmp.Count; ++i)
{
if (tmp[i].Octave > lowest)
{
if (Utils.CountOfTones(tmp[i].Tone, notes) > 1)
{
if (tmp[i].Tone > lowesTone)
{
tmp[i] = new Note(lowest, tmp[i].Tone);
}
else
{
tmp[i] = new Note((byte) (lowest + 1), tmp[i].Tone);
}
}
}
}
tmp = tmp.OrderBy(x => x.Id).ToList();
return tmp;
}
public GuitarString(Note note)
{
open = note;
}
public void SetTune(Note note)
{
open = note;
}
private int RunCmd(string cmd)
{
int newInterval = 0;
if (cmd.Length > 0) // Если не пустая строка
{
if (!int.TryParse(cmd, out newInterval)) // Если не число (если не интервал)
{
if (cmd.StartsWith("@")) // Если аккорд
{
string[] lst = cmd.Substring(1).Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);
if (lst.Length > 0)
{
try
{
Note baseNote;
// 0-й элемент содержит базовую ноту аккорда (Например D#4 - D# 4-й октавы)
try
{
baseNote = Note.FromString(lst[0]);
}
catch
{
baseNote = new Note(3, lst[0].Replace("#", "d").ConvertToEnum<Tones>());
//Возможно не указана октава
}
string chordName = "";
if (lst.Length >= 2)
// Если через пробел еще что-то было, значит аккорд не мажорный (у мажорного нет никаких суфиксов)
{
chordName = lst[1]; // 1-й элемент должен содержать тип аккорда (например sus2)
}
int type = 0;
foreach (ChordType chord in Chords.chordTypes)
{
if (chord.name == chordName)
{
break;
}
++type;
}
if (type < Chords.chordTypes.Length)
{
parent.Dispatcher.Invoke((Action) parent.StopPlayAll, null);
List<Note> chord = Chords.chordTypes[type].BuildChord(baseNote);
foreach (Note chordNote in chord)
{
parent.Dispatcher.Invoke((ToggleNoteDelegate) parent.ToggleNote,
new object[] {chordNote, null});
}
parent.Dispatcher.Invoke((Action) parent.PlayToggled, null);
}
}
catch (Exception e)
{
Trace.WriteLine(e.Message);
}
}
}
else // Если набор нот
{
string[] lst = cmd.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);
if (lst.Length > 0)
{
parent.Dispatcher.Invoke((Action) parent.StopPlayAll, null);
foreach (string note in lst.Distinct())
{
try
{
Note tmp = Note.FromString(note);
parent.Dispatcher.Invoke((ToggleNoteDelegate) parent.ToggleNote,
new object[] {tmp, null});
}
catch (Exception)
{
}
}
parent.Dispatcher.Invoke((Action) parent.PlayToggled, null);
}
}
}
}
return newInterval;
}