/** The MidiFile and/or SheetMusic has changed. Stop any playback sound,
* and store the current midifile and sheet music.
*/
public void SetMidiFile(MidiFile file, MidiOptions opt, SheetMusic s)
{
/* If we're paused, and using the same midi file, redraw the
* highlighted notes.
*/
if ((file == midifile && midifile != null && playstate == paused))
{
options = opt;
sheet = s;
sheet.ShadeNotes((int)currentPulseTime, (int)-10, false);
sheet.MouseClick += new MouseEventHandler(MoveToClicked);
/* We have to wait some time (200 msec) for the sheet music
* to scroll and redraw, before we can re-shade.
*/
Timer redrawTimer = new Timer();
redrawTimer.Interval = 200;
redrawTimer.Tick += new EventHandler(ReShade);
redrawTimer.Enabled = true;
redrawTimer.Start();
}
else
{
this.Stop(null, null);
midifile = file;
options = opt;
sheet = s;
if (sheet != null)
{
sheet.MouseClick += new MouseEventHandler(MoveToClicked);
}
}
this.DeleteSoundFile();
}
/** Create a new SheetMusic control.
* MidiFile is the parsed midi file to display.
* SheetMusic Options are the menu options that were selected.
*
* - Apply all the Menu Options to the MidiFile tracks.
* - Calculate the key signature
* - For each track, create a list of MusicSymbols (notes, rests, bars, etc)
* - Vertically align the music symbols in all the tracks
* - Partition the music notes into horizontal staffs
*/
public void init(MidiFile file, MidiOptions options)
{
if (options == null)
{
options = new MidiOptions(file);
}
List <MidiTrack> tracks = file.ChangeMidiNotes(options);
init(file, options, tracks);
}
/* Merge in the saved options to this MidiOptions.*/
public void Merge(MidiOptions saved)
{
if (saved.tracks != null && saved.tracks.Length == tracks.Length)
{
for (int i = 0; i < tracks.Length; i++)
{
tracks[i] = saved.tracks[i];
}
}
if (saved.mute != null && saved.mute.Length == mute.Length)
{
for (int i = 0; i < mute.Length; i++)
{
mute[i] = saved.mute[i];
}
}
if (saved.instruments != null && saved.instruments.Length == instruments.Length)
{
for (int i = 0; i < instruments.Length; i++)
{
instruments[i] = saved.instruments[i];
}
}
if (saved.time != null)
{
time = new TimeSignature(saved.time.Numerator, saved.time.Denominator,
saved.time.Quarter, saved.time.Tempo);
}
useDefaultInstruments = saved.useDefaultInstruments;
scrollVert = saved.scrollVert;
smoothScroll = saved.smoothScroll;
largeNoteSize = saved.largeNoteSize;
showLyrics = saved.showLyrics;
twoStaffs = saved.twoStaffs;
showNoteLetters = saved.showNoteLetters;
transpose = saved.transpose;
key = saved.key;
combineInterval = saved.combineInterval;
if (saved.shadeColor != Color.White)
{
shadeColor = saved.shadeColor;
}
if (saved.shade2Color != Color.White)
{
shade2Color = saved.shade2Color;
}
if (saved.colors != null)
{
colors = saved.colors;
}
showMeasures = saved.showMeasures;
playMeasuresInLoop = saved.playMeasuresInLoop;
playMeasuresInLoopStart = saved.playMeasuresInLoopStart;
playMeasuresInLoopEnd = saved.playMeasuresInLoopEnd;
}
CreateStaffs(List <MusicSymbol>[] allsymbols, KeySignature key,
MidiOptions options, int measurelen)
{
List <Staff>[] trackstaffs = new List <Staff> [allsymbols.Length];
int totaltracks = trackstaffs.Length;
for (int track = 0; track < totaltracks; track++)
{
List <MusicSymbol> symbols = allsymbols[track];
trackstaffs[track] = CreateStaffsForTrack(symbols, measurelen, key, options, track, totaltracks);
}
/* Update the EndTime of each Staff. EndTime is used for playback */
foreach (List <Staff> list in trackstaffs)
{
for (int i = 0; i < list.Count - 1; i++)
{
list[i].EndTime = list[i + 1].StartTime;
}
}
/* Interleave the staffs of each track into the result array. */
int maxstaffs = 0;
for (int i = 0; i < trackstaffs.Length; i++)
{
if (maxstaffs < trackstaffs[i].Count)
{
maxstaffs = trackstaffs[i].Count;
}
}
List <Staff> result = new List <Staff>(maxstaffs * trackstaffs.Length);
for (int i = 0; i < maxstaffs; i++)
{
foreach (List <Staff> list in trackstaffs)
{
if (i < list.Count)
{
result.Add(list[i]);
}
}
}
return(result);
}
private int ytop; /** The y pixel of the top of the staff */
#endregion Fields
#region Constructors
/** Create a new staff with the given list of music symbols,
* and the given key signature. The clef is determined by
* the clef of the first chord symbol. The track number is used
* to determine whether to join this left/right vertical sides
* with the staffs above and below. The SheetMusicOptions are used
* to check whether to display measure numbers or not.
*/
public Staff(List<MusicSymbol> symbols, KeySignature key,
MidiOptions options,
int tracknum, int totaltracks)
{
keysigWidth = SheetMusic.KeySignatureWidth(key);
this.tracknum = tracknum;
this.totaltracks = totaltracks;
showMeasures = (options.showMeasures && tracknum == 0);
measureLength = options.time.Measure;
Clef clef = FindClef(symbols);
clefsym = new ClefSymbol(clef, 0, false);
keys = key.GetSymbols(clef);
this.symbols = symbols;
CalculateWidth(options.scrollVert);
CalculateHeight();
CalculateStartEndTime();
FullJustify();
}
private int measureLength; /** The time (in pulses) of a measure */
/** Create a new staff with the given list of music symbols,
* and the given key signature. The clef is determined by
* the clef of the first chord symbol. The track number is used
* to determine whether to join this left/right vertical sides
* with the staffs above and below. The SheetMusicOptions are used
* to check whether to display measure numbers or not.
*/
public Staff(List <MusicSymbol> symbols, KeySignature key,
MidiOptions options,
int tracknum, int totaltracks)
{
keysigWidth = SheetMusic.KeySignatureWidth(key);
this.tracknum = tracknum;
this.totaltracks = totaltracks;
showMeasures = (options.showMeasures && tracknum == 0);
measureLength = options.time.Measure;
Clef clef = FindClef(symbols);
clefsym = new ClefSymbol(clef, 0, false);
keys = key.GetSymbols(clef);
this.symbols = symbols;
CalculateWidth(options.scrollVert);
CalculateHeight();
CalculateStartEndTime();
FullJustify();
}
/** Set the MidiFile to use.
* Save the list of midi notes. Each midi note includes the note Number
* and StartTime (in pulses), so we know which notes to shade given the
* current pulse time.
*/
public void SetMidiFile(MidiFile midifile, MidiOptions options)
{
if (midifile == null)
{
notes = null;
useTwoColors = false;
return;
}
List <MidiTrack> tracks = midifile.ChangeMidiNotes(options);
MidiTrack track = MidiFile.CombineToSingleTrack(tracks);
notes = track.Notes;
maxShadeDuration = midifile.Time.Quarter * 2;
/* We want to know which track the note came from.
* Use the 'channel' field to store the track.
*/
for (int tracknum = 0; tracknum < tracks.Count; tracknum++)
{
foreach (MidiNote note in tracks[tracknum].Notes)
{
note.Channel = tracknum;
}
}
/* When we have exactly two tracks, we assume this is a piano song,
* and we use different colors for highlighting the left hand and
* right hand notes.
*/
useTwoColors = false;
if (tracks.Count == 2)
{
useTwoColors = true;
}
showNoteLetters = options.showNoteLetters;
this.Invalidate();
}
/** Create a new MidiPlayer, displaying the play/stop buttons, the
* speed bar, and volume bar. The midifile and sheetmusic are initially null.
*/
public MidiPlayer()
{
this.Font = new Font("Arial", 10, FontStyle.Bold);
loadButtonImages();
int buttonheight = this.Font.Height * 2;
this.midifile = null;
this.options = null;
this.sheet = null;
playstate = stopped;
scoreFollowingState = stopped;
startTime = DateTime.Now.TimeOfDay;
startPulseTime = 0;
currentPulseTime = 0;
currentPulseTimeScoreFollowing = 0;
prevPulseTime = -10;
prevPulseTimeScoreFollowing = -10;
errormsg = new StringBuilder(256);
ToolTip tip;
/* Create the rewind button */
rewindButton = new Button();
rewindButton.Parent = this;
rewindButton.Image = rewindImage;
rewindButton.ImageAlign = ContentAlignment.MiddleCenter;
rewindButton.Size = new Size(buttonheight, buttonheight);
rewindButton.Location = new Point(buttonheight / 2, buttonheight / 2);
rewindButton.Click += new EventHandler(Rewind);
tip = new ToolTip();
tip.SetToolTip(rewindButton, Strings.rewind);
/* Create the play button */
playButton = new Button();
playButton.Parent = this;
playButton.Image = playImage;
playButton.ImageAlign = ContentAlignment.MiddleCenter;
playButton.Size = new Size(buttonheight, buttonheight);
playButton.Location = new Point(buttonheight / 2, buttonheight / 2);
playButton.Location = new Point(rewindButton.Location.X + rewindButton.Width + buttonheight / 2,
rewindButton.Location.Y);
playButton.Click += new EventHandler(PlayPause);
playTip = new ToolTip();
playTip.SetToolTip(playButton, Strings.play);
/* Create the stop button */
stopButton = new Button();
stopButton.Parent = this;
stopButton.Image = stopImage;
stopButton.ImageAlign = ContentAlignment.MiddleCenter;
stopButton.Size = new Size(buttonheight, buttonheight);
stopButton.Location = new Point(playButton.Location.X + playButton.Width + buttonheight / 2,
playButton.Location.Y);
stopButton.Click += new EventHandler(Stop);
tip = new ToolTip();
tip.SetToolTip(stopButton, Strings.stop);
/* Create the fastFwd button */
fastFwdButton = new Button();
fastFwdButton.Parent = this;
fastFwdButton.Image = fastFwdImage;
fastFwdButton.ImageAlign = ContentAlignment.MiddleCenter;
fastFwdButton.Size = new Size(buttonheight, buttonheight);
fastFwdButton.Location = new Point(stopButton.Location.X + stopButton.Width + buttonheight / 2,
stopButton.Location.Y);
fastFwdButton.Click += new EventHandler(FastForward);
tip = new ToolTip();
tip.SetToolTip(fastFwdButton, Strings.fastForward);
/* Create the score follower button */
scoreFollowingButton = new Button();
scoreFollowingButton.Parent = this;
scoreFollowingButton.Image = playImage;
scoreFollowingButton.ImageAlign = ContentAlignment.MiddleCenter;
scoreFollowingButton.Size = new Size(buttonheight, buttonheight);
scoreFollowingButton.Location = new Point(fastFwdButton.Location.X + fastFwdButton.Width + buttonheight / 2,
fastFwdButton.Location.Y);
scoreFollowingButton.Click += new EventHandler(StartStopScoreFollowing);
tip = new ToolTip();
tip.SetToolTip(scoreFollowingButton, "Start score following");
/* Create the Speed bar */
speedLabel = new Label();
speedLabel.Parent = this;
speedLabel.Text = Strings.speed + " : 100%";
speedLabel.TextAlign = ContentAlignment.MiddleLeft;
speedLabel.Height = buttonheight;
speedLabel.Width = buttonheight * 3;
speedLabel.Location = new Point(scoreFollowingButton.Location.X + scoreFollowingButton.Width + buttonheight / 2,
scoreFollowingButton.Location.Y);
speedBar = new TrackBar();
speedBar.Parent = this;
speedBar.Minimum = 1;
speedBar.Maximum = 150;
speedBar.TickFrequency = 10;
speedBar.TickStyle = TickStyle.BottomRight;
speedBar.LargeChange = 10;
speedBar.Value = 100;
speedBar.Width = buttonheight * 6;
speedBar.Location = new Point(speedLabel.Location.X + speedLabel.Width + 2,
speedLabel.Location.Y);
speedBar.Scroll += new EventHandler(SpeedBarChanged);
tip = new ToolTip();
tip.SetToolTip(speedBar, Strings.speed);
/* Create the Volume bar */
Label volumeLabel = new Label();
volumeLabel.Parent = this;
volumeLabel.Image = volumeImage;
volumeLabel.ImageAlign = ContentAlignment.MiddleRight;
volumeLabel.Height = buttonheight;
volumeLabel.Width = buttonheight * 2;
volumeLabel.Location = new Point(speedBar.Location.X + speedBar.Width + buttonheight / 2,
speedBar.Location.Y);
volumeBar = new TrackBar();
volumeBar.Parent = this;
volumeBar.Minimum = 1;
volumeBar.Maximum = 100;
volumeBar.TickFrequency = 10;
volumeBar.TickStyle = TickStyle.BottomRight;
volumeBar.LargeChange = 10;
volumeBar.Value = 100;
volumeBar.Width = buttonheight * 6;
volumeBar.Location = new Point(volumeLabel.Location.X + volumeLabel.Width + 2,
volumeLabel.Location.Y);
volumeBar.Scroll += new EventHandler(ChangeVolume);
tip = new ToolTip();
tip.SetToolTip(volumeBar, Strings.volume);
Height = buttonheight * 2;
textBox = new TextBox();
textBox.Parent = this;
textBox.Height = buttonheight * 3;
textBox.Width = buttonheight * 20;
textBox.Location = new Point(volumeBar.Location.X + volumeBar.Width + 2,
volumeBar.Location.Y);
/* Initialize the timer used for playback, but don't start
* the timer yet (enabled = false).
*/
timer = new Timer();
timer.Enabled = false;
timer.Interval = 100; /* 100 millisec */
timer.Tick += new EventHandler(TimerCallback);
tempSoundFile = "";
///////////////////////////////////////////////////////////////////
/* Initialize the timer used for score following */
timerScoreFollowing = new Timer();
timerScoreFollowing.Enabled = false;
// Need to run at a higher frquency than the backend (otherwise,
// we may not capute teh instructions).
timerScoreFollowing.Interval = 50;
timerScoreFollowing.Tick += new EventHandler(TimerCallbackScoreFollowing);
// Create the ZQM sockets, open the TCP ports
context = new ZContext();
subscriber = new ZSocket(context, ZSocketType.SUB);
subscriber.Subscribe("");
subscriber.Conflate = true; // Keep only the last message
subscriber.Connect("tcp://127.0.0.1:5555");
publisher = new ZSocket(context, ZSocketType.PUB);
publisher.Bind("tcp://127.0.0.1:5556");
///////////////////////////////////////////////////////////////////
}
/** Create a new SheetMusic control, using the given midi filename.
* The options can be null.
*/
public SheetMusic(string filename, MidiOptions options)
{
MidiFile file = new MidiFile(filename);
init(file, options);
}
private Image volumeImage; /** The volume image */
#endregion Fields
#region Constructors
/** Create a new MidiPlayer, displaying the play/stop buttons, the
* speed bar, and volume bar. The midifile and sheetmusic are initially null.
*/
public MidiPlayer()
{
this.Font = new Font("Arial", 10, FontStyle.Bold);
loadButtonImages();
int buttonheight = this.Font.Height * 2;
this.midifile = null;
this.options = null;
this.sheet = null;
playstate = stopped;
startTime = DateTime.Now.TimeOfDay;
startPulseTime = 0;
currentPulseTime = 0;
prevPulseTime = -10;
errormsg = new StringBuilder(256);
ToolTip tip;
/* Create the rewind button */
rewindButton = new Button();
rewindButton.Parent = this;
rewindButton.Image = rewindImage;
rewindButton.ImageAlign = ContentAlignment.MiddleCenter;
rewindButton.Size = new Size(buttonheight, buttonheight);
rewindButton.Location = new Point(buttonheight/2, buttonheight/2);
rewindButton.Click += new EventHandler(Rewind);
tip = new ToolTip();
tip.SetToolTip(rewindButton, "Rewind");
/* Create the play button */
playButton = new Button();
playButton.Parent = this;
playButton.Image = playImage;
playButton.ImageAlign = ContentAlignment.MiddleCenter;
playButton.Size = new Size(buttonheight, buttonheight);
playButton.Location = new Point(buttonheight/2, buttonheight/2);
playButton.Location = new Point(rewindButton.Location.X + rewindButton.Width + buttonheight/2,
rewindButton.Location.Y);
playButton.Click += new EventHandler(PlayPause);
playTip = new ToolTip();
playTip.SetToolTip(playButton, "Play");
/* Create the stop button */
stopButton = new Button();
stopButton.Parent = this;
stopButton.Image = stopImage;
stopButton.ImageAlign = ContentAlignment.MiddleCenter;
stopButton.Size = new Size(buttonheight, buttonheight);
stopButton.Location = new Point(playButton.Location.X + playButton.Width + buttonheight/2,
playButton.Location.Y);
stopButton.Click += new EventHandler(Stop);
tip = new ToolTip();
tip.SetToolTip(stopButton, "Stop");
/* Create the fastFwd button */
fastFwdButton = new Button();
fastFwdButton.Parent = this;
fastFwdButton.Image = fastFwdImage;
fastFwdButton.ImageAlign = ContentAlignment.MiddleCenter;
fastFwdButton.Size = new Size(buttonheight, buttonheight);
fastFwdButton.Location = new Point(stopButton.Location.X + stopButton.Width + buttonheight/2,
stopButton.Location.Y);
fastFwdButton.Click += new EventHandler(FastForward);
tip = new ToolTip();
tip.SetToolTip(fastFwdButton, "Fast Forward");
/* Create the Speed bar */
Label speedLabel = new Label();
speedLabel.Parent = this;
speedLabel.Text = "Speed: ";
speedLabel.TextAlign = ContentAlignment.MiddleRight;
speedLabel.Height = buttonheight;
speedLabel.Width = buttonheight*2;
speedLabel.Location = new Point(fastFwdButton.Location.X + fastFwdButton.Width + buttonheight/2,
fastFwdButton.Location.Y);
speedBar = new TrackBar();
speedBar.Parent = this;
speedBar.Minimum = 1;
speedBar.Maximum = 100;
speedBar.TickFrequency = 10;
speedBar.TickStyle = TickStyle.BottomRight;
speedBar.LargeChange = 10;
speedBar.Value = 100;
speedBar.Width = buttonheight * 5;
speedBar.Location = new Point(speedLabel.Location.X + speedLabel.Width + 2,
speedLabel.Location.Y);
tip = new ToolTip();
tip.SetToolTip(speedBar, "Adjust the speed");
/* Create the Volume bar */
Label volumeLabel = new Label();
volumeLabel.Parent = this;
volumeLabel.Image = volumeImage;
volumeLabel.ImageAlign = ContentAlignment.MiddleRight;
volumeLabel.Height = buttonheight;
volumeLabel.Width = buttonheight*2;
volumeLabel.Location = new Point(speedBar.Location.X + speedBar.Width + buttonheight/2,
speedBar.Location.Y);
volumeBar = new TrackBar();
volumeBar.Parent = this;
volumeBar.Minimum = 1;
volumeBar.Maximum = 100;
volumeBar.TickFrequency = 10;
volumeBar.TickStyle = TickStyle.BottomRight;
volumeBar.LargeChange = 10;
volumeBar.Value = 100;
volumeBar.Width = buttonheight * 5;
volumeBar.Location = new Point(volumeLabel.Location.X + volumeLabel.Width + 2,
volumeLabel.Location.Y);
volumeBar.Scroll += new EventHandler(ChangeVolume);
tip = new ToolTip();
tip.SetToolTip(volumeBar, "Adjust the volume");
Height = buttonheight*2;
/* Initialize the timer used for playback, but don't start
* the timer yet (enabled = false).
*/
timer = new Timer();
timer.Enabled = false;
timer.Interval = 100; /* 100 millisec */
timer.Tick += new EventHandler(TimerCallback);
tempSoundFile = "";
}
/** Create a new SheetMusic control.
* MidiFile is the parsed midi file to display.
* SheetMusic Options are the menu options that were selected.
*
* - Apply all the Menu Options to the MidiFile tracks.
* - Calculate the key signature
* - For each track, create a list of MusicSymbols (notes, rests, bars, etc)
* - Vertically align the music symbols in all the tracks
* - Partition the music notes into horizontal staffs
*/
public void init(MidiFile file, MidiOptions options)
{
if (options == null)
{
options = new MidiOptions(file);
}
zoom = 1.0f;
filename = file.FileName;
SetColors(options.colors, options.shadeColor, options.shade2Color);
pen = new Pen(Color.Black, 1);
List <MidiTrack> tracks = file.ChangeMidiNotes(options);
SetNoteSize(options.largeNoteSize);
scrollVert = options.scrollVert;
showNoteLetters = options.showNoteLetters;
TimeSignature time = file.Time;
if (options.time != null)
{
time = options.time;
}
if (options.key == -1)
{
mainkey = GetKeySignature(tracks);
}
else
{
mainkey = new KeySignature(options.key);
}
numtracks = tracks.Count;
int lastStart = file.EndTime() + options.shifttime;
/* Create all the music symbols (notes, rests, vertical bars, and
* clef changes). The symbols variable contains a list of music
* symbols for each track. The list does not include the left-side
* Clef and key signature symbols. Those can only be calculated
* when we create the staffs.
*/
List <MusicSymbol>[] symbols = new List <MusicSymbol> [numtracks];
for (int tracknum = 0; tracknum < numtracks; tracknum++)
{
MidiTrack track = tracks[tracknum];
ClefMeasures clefs = new ClefMeasures(track.Notes, time.Measure);
List <ChordSymbol> chords = CreateChords(track.Notes, mainkey, time, clefs);
symbols[tracknum] = CreateSymbols(chords, clefs, time, lastStart);
}
List <LyricSymbol>[] lyrics = null;
if (options.showLyrics)
{
lyrics = GetLyrics(tracks);
}
/* Vertically align the music symbols */
SymbolWidths widths = new SymbolWidths(symbols, lyrics);
// SymbolWidths widths = new SymbolWidths(symbols);
AlignSymbols(symbols, widths);
staffs = CreateStaffs(symbols, mainkey, options, time.Measure);
CreateAllBeamedChords(symbols, time);
if (lyrics != null)
{
AddLyricsToStaffs(staffs, lyrics);
}
/* After making chord pairs, the stem directions can change,
* which affects the staff height. Re-calculate the staff height.
*/
foreach (Staff staff in staffs)
{
staff.CalculateHeight();
}
BackColor = Color.White;
SetZoom(1.0f);
}
/** Set the MidiFile to use.
* Save the list of midi notes. Each midi note includes the note Number
* and StartTime (in pulses), so we know which notes to shade given the
* current pulse time.
*/
public void SetMidiFile(MidiFile midifile, MidiOptions options)
{
if (midifile == null) {
notes = null;
useTwoColors = false;
return;
}
List<MidiTrack> tracks = midifile.ChangeMidiNotes(options);
MidiTrack track = MidiFile.CombineToSingleTrack(tracks);
notes = track.Notes;
maxShadeDuration = midifile.Time.Quarter * 2;
/* We want to know which track the note came from.
* Use the 'channel' field to store the track.
*/
for (int tracknum = 0; tracknum < tracks.Count; tracknum++) {
foreach (MidiNote note in tracks[tracknum].Notes) {
note.Channel = tracknum;
}
}
/* When we have exactly two tracks, we assume this is a piano song,
* and we use different colors for highlighting the left hand and
* right hand notes.
*/
useTwoColors = false;
if (tracks.Count == 2) {
useTwoColors = true;
}
showNoteLetters = options.showNoteLetters;
this.Invalidate();
}
void AlignSymbols(List <MusicSymbol>[] allsymbols, SymbolWidths widths, MidiOptions options)
{
// If we show measure numbers, increase bar symbol width
if (options.showMeasures)
{
for (int track = 0; track < allsymbols.Length; track++)
{
List <MusicSymbol> symbols = allsymbols[track];
foreach (MusicSymbol sym in symbols)
{
if (sym is BarSymbol)
{
sym.Width += SheetMusic.NoteWidth;
}
}
}
}
for (int track = 0; track < allsymbols.Length; track++)
{
List <MusicSymbol> symbols = allsymbols[track];
List <MusicSymbol> result = new List <MusicSymbol>();
int i = 0;
/* If a track doesn't have a symbol for a starttime,
* add a blank symbol.
*/
foreach (int start in widths.StartTimes)
{
/* BarSymbols are not included in the SymbolWidths calculations */
while (i < symbols.Count && (symbols[i] is BarSymbol) &&
symbols[i].StartTime <= start)
{
result.Add(symbols[i]);
i++;
}
if (i < symbols.Count && symbols[i].StartTime == start)
{
while (i < symbols.Count &&
symbols[i].StartTime == start)
{
result.Add(symbols[i]);
i++;
}
}
else
{
result.Add(new BlankSymbol(start, 0));
}
}
/* For each starttime, increase the symbol width by
* SymbolWidths.GetExtraWidth().
*/
i = 0;
while (i < result.Count)
{
if (result[i] is BarSymbol)
{
i++;
continue;
}
int start = result[i].StartTime;
int extra = widths.GetExtraWidth(track, start);
result[i].Width += extra;
/* Skip all remaining symbols with the same starttime. */
while (i < result.Count && result[i].StartTime == start)
{
i++;
}
}
allsymbols[track] = result;
}
}
public bool Write(string destfile, MidiOptions options)
{
try {
FileStream stream;
stream = new FileStream(destfile, FileMode.Create);
bool result = Write(stream, options);
stream.Close();
return result;
}
catch (IOException e) {
return false;
}
}
public void TestChangeSoundPerChannelTracks()
{
const byte notenum = 60;
MidiFile midifile = CreateTestChangeSoundPerChannelMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.tracks[0] = false;
options.tracks[1] = true;
options.tracks[2] = false;
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 1);
MidiTrack track = newmidi.Tracks[0];
Assert.AreEqual(track.Notes.Count, 3);
for (int i = 0; i < track.Notes.Count; i++) {
MidiNote note = track.Notes[i];
Assert.AreEqual(note.Number, notenum + 10 + i);
}
File.Delete(testfile);
}
public void TestChangeSoundPerChannelPauseTime()
{
const byte notenum = 60;
MidiFile midifile = CreateTestChangeSoundPerChannelMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.pauseTime = 50;
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 3);
for (int tracknum = 0; tracknum < 3; tracknum++) {
MidiTrack track = newmidi.Tracks[tracknum];
Assert.AreEqual(track.Notes.Count, 2);
for (int i = 0; i < 2; i++) {
MidiNote note = track.Notes[i];
Assert.AreEqual(note.Number, notenum + 10*tracknum + 1 + i);
Assert.AreEqual(note.StartTime, 60 * (i+1) - 50);
}
}
File.Delete(testfile);
}
public void TestChangeSoundPerChannelInstruments()
{
MidiFile midifile = CreateTestChangeSoundPerChannelMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.useDefaultInstruments = false;
for (int tracknum = 0; tracknum < 3; tracknum++) {
options.instruments[tracknum] = 40 + tracknum;
}
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 3);
Assert.AreEqual(newmidi.Tracks[0].Instrument, 40);
Assert.AreEqual(newmidi.Tracks[1].Instrument, 41);
Assert.AreEqual(newmidi.Tracks[2].Instrument, 42);
File.Delete(testfile);
}
/** Create a new SheetMusic control, using the given parsed MidiFile.
* The options can be null.
*/
public SheetMusic(MidiFile file, MidiOptions options)
{
init(file, options);
}
/** Given MusicSymbols for a track, create the staffs for that track.
* Each Staff has a maxmimum width of PageWidth (800 pixels).
* Also, measures should not span multiple Staffs.
*/
private List<Staff> CreateStaffsForTrack(List<MusicSymbol> symbols, int measurelen,
KeySignature key, MidiOptions options,
int track, int totaltracks)
{
int keysigWidth = KeySignatureWidth(key);
int startindex = 0;
List<Staff> thestaffs = new List<Staff>(symbols.Count / 50);
while (startindex < symbols.Count) {
/* startindex is the index of the first symbol in the staff.
* endindex is the index of the last symbol in the staff.
*/
int endindex = startindex;
int width = keysigWidth;
int maxwidth;
/* If we're scrolling vertically, the maximum width is PageWidth. */
if (scrollVert) {
maxwidth = SheetMusic.PageWidth;
}
else {
maxwidth = 2000000;
}
while (endindex < symbols.Count &&
width + symbols[endindex].Width < maxwidth) {
width += symbols[endindex].Width;
endindex++;
}
endindex--;
/* There's 3 possibilities at this point:
* 1. We have all the symbols in the track.
* The endindex stays the same.
*
* 2. We have symbols for less than one measure.
* The endindex stays the same.
*
* 3. We have symbols for 1 or more measures.
* Since measures cannot span multiple staffs, we must
* make sure endindex does not occur in the middle of a
* measure. We count backwards until we come to the end
* of a measure.
*/
if (endindex == symbols.Count - 1) {
/* endindex stays the same */
}
else if (symbols[startindex].StartTime / measurelen ==
symbols[endindex].StartTime / measurelen) {
/* endindex stays the same */
}
else {
int endmeasure = symbols[endindex+1].StartTime/measurelen;
while (symbols[endindex].StartTime / measurelen ==
endmeasure) {
endindex--;
}
}
int range = endindex + 1 - startindex;
if (scrollVert) {
width = SheetMusic.PageWidth;
}
Staff staff = new Staff(symbols.GetRange(startindex, range),
key, options, track, totaltracks);
thestaffs.Add(staff);
startindex = endindex + 1;
}
return thestaffs;
}
/** Given all the MusicSymbols for every track, create the staffs
* for the sheet music. There are two parts to this:
*
* - Get the list of staffs for each track.
* The staffs will be stored in trackstaffs as:
*
* trackstaffs[0] = { Staff0, Staff1, Staff2, ... } for track 0
* trackstaffs[1] = { Staff0, Staff1, Staff2, ... } for track 1
* trackstaffs[2] = { Staff0, Staff1, Staff2, ... } for track 2
*
* - Store the Staffs in the staffs list, but interleave the
* tracks as follows:
*
* staffs = { Staff0 for track 0, Staff0 for track1, Staff0 for track2,
* Staff1 for track 0, Staff1 for track1, Staff1 for track2,
* Staff2 for track 0, Staff2 for track1, Staff2 for track2,
* ... }
*/
private List<Staff> CreateStaffs(List<MusicSymbol>[] allsymbols, KeySignature key,
MidiOptions options, int measurelen)
{
List<Staff>[] trackstaffs = new List<Staff>[ allsymbols.Length ];
int totaltracks = trackstaffs.Length;
for (int track = 0; track < totaltracks; track++) {
List<MusicSymbol> symbols = allsymbols[ track ];
trackstaffs[track] = CreateStaffsForTrack(symbols, measurelen, key, options, track, totaltracks);
}
/* Update the EndTime of each Staff. EndTime is used for playback */
foreach (List<Staff> list in trackstaffs) {
for (int i = 0; i < list.Count-1; i++) {
list[i].EndTime = list[i+1].StartTime;
}
}
/* Interleave the staffs of each track into the result array. */
int maxstaffs = 0;
for (int i = 0; i < trackstaffs.Length; i++) {
if (maxstaffs < trackstaffs[i].Count) {
maxstaffs = trackstaffs[i].Count;
}
}
List<Staff> result = new List<Staff>(maxstaffs * trackstaffs.Length);
for (int i = 0; i < maxstaffs; i++) {
foreach (List<Staff> list in trackstaffs) {
if (i < list.Count) {
result.Add(list[i]);
}
}
}
return result;
}
/** The MidiFile and/or SheetMusic has changed. Stop any playback sound,
* and store the current midifile and sheet music.
*/
public void SetMidiFile(MidiFile file, MidiOptions opt, SheetMusic s)
{
/* If we're paused, and using the same midi file, redraw the
* highlighted notes.
*/
if ((file == midifile && midifile != null && playstate == paused)) {
options = opt;
sheet = s;
sheet.ShadeNotes((int)currentPulseTime, (int)-10, false);
/* We have to wait some time (200 msec) for the sheet music
* to scroll and redraw, before we can re-shade.
*/
Timer redrawTimer = new Timer();
redrawTimer.Interval = 200;
redrawTimer.Tick += new EventHandler(ReShade);
redrawTimer.Enabled = true;
redrawTimer.Start();
}
else {
this.Stop(null, null);
midifile = file;
options = opt;
sheet = s;
}
this.DeleteSoundFile();
}
/** Create a new SheetMusic control.
* MidiFile is the parsed midi file to display.
* SheetMusic Options are the menu options that were selected.
*
* - Apply all the Menu Options to the MidiFile tracks.
* - Calculate the key signature
* - For each track, create a list of MusicSymbols (notes, rests, bars, etc)
* - Vertically align the music symbols in all the tracks
* - Partition the music notes into horizontal staffs
*/
public void init(MidiFile file, MidiOptions options)
{
if (options == null) {
options = new MidiOptions(file);
}
zoom = 1.0f;
filename = file.FileName;
SetColors(options.colors, options.shadeColor, options.shade2Color);
pen = new Pen(Color.Black, 1);
List<MidiTrack> tracks = file.ChangeMidiNotes(options);
SetNoteSize(options.largeNoteSize);
scrollVert = options.scrollVert;
showNoteLetters= options.showNoteLetters;
TimeSignature time = file.Time;
if (options.time != null) {
time = options.time;
}
if (options.key == -1) {
mainkey = GetKeySignature(tracks);
}
else {
mainkey = new KeySignature(options.key);
}
numtracks = tracks.Count;
int lastStart = file.EndTime() + options.shifttime;
/* Create all the music symbols (notes, rests, vertical bars, and
* clef changes). The symbols variable contains a list of music
* symbols for each track. The list does not include the left-side
* Clef and key signature symbols. Those can only be calculated
* when we create the staffs.
*/
List<MusicSymbol>[] symbols = new List<MusicSymbol> [ numtracks ];
for (int tracknum = 0; tracknum < numtracks; tracknum++) {
MidiTrack track = tracks[tracknum];
ClefMeasures clefs = new ClefMeasures(track.Notes, time.Measure);
List<ChordSymbol> chords = CreateChords(track.Notes, mainkey, time, clefs);
symbols[tracknum] = CreateSymbols(chords, clefs, time, lastStart);
}
List<LyricSymbol>[] lyrics = null;
if (options.showLyrics) {
lyrics = GetLyrics(tracks);
}
/* Vertically align the music symbols */
SymbolWidths widths = new SymbolWidths(symbols, lyrics);
// SymbolWidths widths = new SymbolWidths(symbols);
AlignSymbols(symbols, widths);
staffs = CreateStaffs(symbols, mainkey, options, time.Measure);
CreateAllBeamedChords(symbols, time);
if (lyrics != null) {
AddLyricsToStaffs(staffs, lyrics);
}
/* After making chord pairs, the stem directions can change,
* which affects the staff height. Re-calculate the staff height.
*/
foreach (Staff staff in staffs) {
staff.CalculateHeight();
}
BackColor = Color.White;
SetZoom(1.0f);
}
public void TestChangeSoundPerChannelTranspose()
{
const byte notenum = 60;
MidiFile midifile = CreateTestChangeSoundPerChannelMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.transpose = 10;
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 3);
for (int tracknum = 0; tracknum < 3; tracknum++) {
MidiTrack track = newmidi.Tracks[tracknum];
for (int i = 0; i < 3; i++) {
MidiNote note = track.Notes[i];
Assert.AreEqual(note.Number, notenum + tracknum*10 + i + 10);
}
}
File.Delete(testfile);
}
/** Create a new SheetMusic control, using the given midi filename.
* The options can be null.
*/
public SheetMusic(string filename, MidiOptions options)
{
MidiFile file = new MidiFile(filename);
init(file, options);
}
public void TestChangeSoundTempo()
{
MidiFile midifile = CreateTestChangeSoundMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.tempo = 0x405060;
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 3);
Assert.AreEqual(newmidi.Time.Tempo, 0x405060);
File.Delete(testfile);
}
public SheetMusic(MidiFile file, MidiOptions options, List <MidiTrack> tracks)
{
init(file, options, tracks);
}
public void TestChangeSoundTrack()
{
const byte notenum = 60;
MidiFile midifile = CreateTestChangeSoundMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.useDefaultInstruments = false;
options.tracks[0] = false;
options.tracks[1] = true;
options.tracks[2] = false;
options.instruments[0] = 40;
options.instruments[1] = 41;
options.instruments[2] = 42;
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 1);
Assert.AreEqual(newmidi.Tracks[0].Instrument, 41);
for (int i = 0; i < 3; i++) {
MidiNote note = newmidi.Tracks[0].Notes[i];
Assert.AreEqual(note.Number, notenum + 10 + i);
}
File.Delete(testfile);
}
/** Create a new SheetMusic control, using the given raw midi byte[] data.
* The options can be null.
*/
public SheetMusic(byte[] data, string title, MidiOptions options)
{
MidiFile file = new MidiFile(data, title);
init(file, options);
}
public void TestChangeSoundTranspose()
{
const byte notenum = 60;
MidiFile midifile = CreateTestChangeSoundMidiFile();
MidiOptions options = new MidiOptions(midifile);
options.transpose = 10;
bool ret = midifile.ChangeSound(testfile, options);
Assert.AreEqual(ret, true);
MidiFile newmidi = new MidiFile(testfile);
Assert.AreEqual(newmidi.Tracks.Count, 3);
for (int tracknum = 0; tracknum < 3; tracknum++) {
MidiTrack track = newmidi.Tracks[tracknum];
List<MidiNote> notes = track.Notes;
Assert.AreEqual(notes.Count, 3);
Assert.AreEqual(notes[0].StartTime, 0);
Assert.AreEqual(notes[0].Number, notenum + 10*tracknum + 10);
Assert.AreEqual(notes[0].Duration, 60);
Assert.AreEqual(notes[1].StartTime, 60);
Assert.AreEqual(notes[1].Number, notenum + 10*tracknum + 11);
Assert.AreEqual(notes[1].Duration, 30);
Assert.AreEqual(notes[2].StartTime, 90);
Assert.AreEqual(notes[2].Number, notenum + 10*tracknum + 12);
Assert.AreEqual(notes[2].Duration, 90);
}
File.Delete(testfile);
}
CreateStaffsForTrack(List <MusicSymbol> symbols, int measurelen,
KeySignature key, MidiOptions options,
int track, int totaltracks)
{
int keysigWidth = KeySignatureWidth(key);
int startindex = 0;
List <Staff> thestaffs = new List <Staff>(symbols.Count / 50);
while (startindex < symbols.Count)
{
/* startindex is the index of the first symbol in the staff.
* endindex is the index of the last symbol in the staff.
*/
int endindex = startindex;
int width = keysigWidth;
int maxwidth;
/* If we're scrolling vertically, the maximum width is PageWidth. */
if (scrollVert)
{
maxwidth = SheetMusic.PageWidth;
}
else
{
maxwidth = 2000000;
}
while (endindex < symbols.Count &&
width + symbols[endindex].Width < maxwidth)
{
width += symbols[endindex].Width;
endindex++;
}
endindex--;
/* There's 3 possibilities at this point:
* 1. We have all the symbols in the track.
* The endindex stays the same.
*
* 2. We have symbols for less than one measure.
* The endindex stays the same.
*
* 3. We have symbols for 1 or more measures.
* Since measures cannot span multiple staffs, we must
* make sure endindex does not occur in the middle of a
* measure. We count backwards until we come to the end
* of a measure.
*/
if (endindex == symbols.Count - 1)
{
/* endindex stays the same */
}
else if (symbols[startindex].StartTime / measurelen ==
symbols[endindex].StartTime / measurelen)
{
/* endindex stays the same */
}
else
{
int endmeasure = symbols[endindex + 1].StartTime / measurelen;
while (symbols[endindex].StartTime / measurelen ==
endmeasure)
{
endindex--;
}
}
int range = endindex + 1 - startindex;
if (scrollVert)
{
width = SheetMusic.PageWidth;
}
Staff staff = new Staff(symbols.GetRange(startindex, range),
key, options, track, totaltracks);
thestaffs.Add(staff);
startindex = endindex + 1;
}
return(thestaffs);
}
/** Write this Midi file to the given stream.
* If options is not null, apply those options to the midi events
* before performing the write.
* Return true if the file was saved successfully, else false.
*/
public bool Write(Stream stream, MidiOptions options)
{
List<MidiEvent>[] newevents = events;
if (options != null) {
newevents = ApplyOptionsToEvents(options);
}
return WriteEvents(stream, newevents, trackmode, quarternote);
}
/** Create a new SheetMusic control, using the given parsed MidiFile.
* The options can be null.
*/
public SheetMusic(MidiFile file, MidiOptions options)
{
init(file, options);
}
/** Create the MidiOptions based on the menus */
MidiOptions GetMidiOptions()
{
MidiOptions options = new MidiOptions(midifile);
/* Get the list of selected tracks from the Tracks menu */
for (int track = 0; track < midifile.Tracks.Count; track++) {
options.tracks[track] = trackDisplayMenu.MenuItems[track+2].Checked;
options.mute[track] = trackMuteMenu.MenuItems[track+2].Checked;
}
options.scrollVert = scrollVertMenu.Checked;
options.largeNoteSize = largeNotesMenu.Checked;
options.twoStaffs = twoStaffMenu.Checked;
options.showNoteLetters = MidiOptions.NoteNameNone;
for (int i = 0; i < 6; i++) {
if (showLettersMenu.MenuItems[i].Checked) {
options.showNoteLetters = (int)showLettersMenu.MenuItems[i].Tag;
}
}
if (showLyricsMenu != null) {
options.showLyrics = showLyricsMenu.Checked;
}
options.showMeasures = showMeasuresMenu.Checked;
options.shifttime = 0;
options.transpose = 0;
options.key = -1;
options.time = midifile.Time;
/* Get the time signature to use */
foreach (MenuItem menu in timeSigMenu.MenuItems) {
int quarter = options.time.Quarter;
int tempo = options.time.Tempo;
if (menu.Checked && !menu.Text.Contains("default")) {
if (menu.Text == "3/4") {
options.time = new TimeSignature(3, 4, quarter, tempo);
} else if (menu.Text == "4/4") {
options.time = new TimeSignature(4, 4, quarter, tempo);
}
}
}
/* Get the measure length to use */
foreach (MenuItem menu in measureMenu.MenuItems) {
if (menu.Checked) {
int num = options.time.Numerator;
int denom = options.time.Denominator;
int measure = (int)menu.Tag;
int tempo = options.time.Tempo;
int quarter = measure * options.time.Quarter / options.time.Measure;
options.time = new TimeSignature(num, denom, quarter, tempo);
}
}
/* Get the amount to shift the notes left/right */
foreach (MenuItem menu in shiftNotesMenu.MenuItems) {
if (menu.Checked) {
int shift = (int)menu.Tag;
if (shift >= 0)
options.shifttime = midifile.Time.Quarter/2 * (shift);
else
options.shifttime = shift;
}
}
/* Get the key signature to use */
foreach (MenuItem menu in changeKeyMenu.MenuItems) {
if (menu.Checked && !menu.Text.Contains("Default")) {
int tag = (int)menu.Tag;
/* If the tag is positive, it has the number of sharps.
* If the tag is negative, it has the number of flats.
*/
int num_flats = 0;
int num_sharps = 0;
if (tag < 0)
num_flats = -tag;
else
num_sharps = tag;
options.key = new KeySignature(num_sharps, num_flats).Notescale();
}
}
/* Get the amount to transpose the key up/down */
foreach (MenuItem menu in transposeMenu.MenuItems) {
if (menu.Checked) {
options.transpose = (int)menu.Tag;
}
}
/* Get the time interval for combining notes into the same chord. */
foreach (MenuItem menu in combineNotesMenu.MenuItems) {
if (menu.Checked) {
options.combineInterval = (int)menu.Tag;
}
}
/* Get the list of instruments from the Instrument dialog */
options.instruments = instrumentDialog.Instruments;
options.useDefaultInstruments = instrumentDialog.isDefault();
/* Get the speed/tempo to use */
options.tempo = midifile.Time.Tempo;
/* Get whether to play measures in a loop */
options.playMeasuresInLoop = playMeasuresDialog.IsEnabled();
if (options.playMeasuresInLoop) {
options.playMeasuresInLoopStart = playMeasuresDialog.GetStartMeasure();
options.playMeasuresInLoopEnd = playMeasuresDialog.GetEndMeasure();
if (options.playMeasuresInLoopStart > options.playMeasuresInLoopEnd) {
options.playMeasuresInLoopEnd = options.playMeasuresInLoopStart;
}
}
/* Get the note colors to use */
options.shadeColor = colordialog.ShadeColor;
options.shade2Color = colordialog.Shade2Color;
if (useColorMenu.Checked) {
options.colors = colordialog.Colors;
}
else {
options.colors = null;
}
return options;
}
/* Apply the following sound options to the midi events:
* - The tempo (the microseconds per pulse)
* - The instruments per track
* - The note number (transpose value)
* - The tracks to include
* Return the modified list of midi events.
*/
private List<MidiEvent>[] ApplyOptionsToEvents(MidiOptions options)
{
int i;
if (trackPerChannel) {
return ApplyOptionsPerChannel(options);
}
/* A midifile can contain tracks with notes and tracks without notes.
* The options.tracks and options.instruments are for tracks with notes.
* So the track numbers in 'options' may not match correctly if the
* midi file has tracks without notes. Re-compute the instruments, and
* tracks to keep.
*/
int num_tracks = events.Length;
int[] instruments = new int[num_tracks];
bool[] keeptracks = new bool[num_tracks];
for (i = 0; i < num_tracks; i++) {
instruments[i] = 0;
keeptracks[i] = true;
}
for (int tracknum = 0; tracknum < tracks.Count; tracknum++) {
MidiTrack track = tracks[tracknum];
int realtrack = track.Number;
instruments[realtrack] = options.instruments[tracknum];
if (options.tracks[tracknum] == false ||
options.mute[tracknum] == true) {
keeptracks[realtrack] = false;
}
}
List<MidiEvent>[] newevents = CloneMidiEvents(events);
/* Set the tempo at the beginning of each track */
for (int tracknum = 0; tracknum < newevents.Length; tracknum++) {
MidiEvent mevent = CreateTempoEvent(options.tempo);
newevents[tracknum].Insert(0, mevent);
}
/* Change the note number (transpose), instrument, and tempo */
for (int tracknum = 0; tracknum < newevents.Length; tracknum++) {
foreach (MidiEvent mevent in newevents[tracknum]) {
int num = mevent.Notenumber + options.transpose;
if (num < 0)
num = 0;
if (num > 127)
num = 127;
mevent.Notenumber = (byte)num;
if (!options.useDefaultInstruments) {
mevent.Instrument = (byte)instruments[tracknum];
}
mevent.Tempo = options.tempo;
}
}
if (options.pauseTime != 0) {
newevents = StartAtPauseTime(newevents, options.pauseTime);
}
/* Change the tracks to include */
int count = 0;
for (int tracknum = 0; tracknum < keeptracks.Length; tracknum++) {
if (keeptracks[tracknum]) {
count++;
}
}
List<MidiEvent>[] result = new List<MidiEvent>[count];
i = 0;
for (int tracknum = 0; tracknum < keeptracks.Length; tracknum++) {
if (keeptracks[tracknum]) {
result[i] = newevents[tracknum];
i++;
}
}
return result;
}
/** Apply the given sheet music options to the MidiNotes.
* Return the midi tracks with the changes applied.
*/
public List<MidiTrack> ChangeMidiNotes(MidiOptions options)
{
List<MidiTrack> newtracks = new List<MidiTrack>();
for (int track = 0; track < tracks.Count; track++) {
if (options.tracks[track]) {
newtracks.Add(tracks[track].Clone() );
}
}
/* To make the sheet music look nicer, we round the start times
* so that notes close together appear as a single chord. We
* also extend the note durations, so that we have longer notes
* and fewer rest symbols.
*/
TimeSignature time = timesig;
if (options.time != null) {
time = options.time;
}
MidiFile.RoundStartTimes(newtracks, options.combineInterval, timesig);
MidiFile.RoundDurations(newtracks, time.Quarter);
if (options.twoStaffs) {
newtracks = MidiFile.CombineToTwoTracks(newtracks, timesig.Measure);
}
if (options.shifttime != 0) {
MidiFile.ShiftTime(newtracks, options.shifttime);
}
if (options.transpose != 0) {
MidiFile.Transpose(newtracks, options.transpose);
}
return newtracks;
}
/** Create a new MidiPlayer, displaying the play/stop buttons, the
* speed bar, and volume bar. The midifile and sheetmusic are initially null.
*/
public MidiPlayer()
{
this.Font = new Font("Arial", 10, FontStyle.Bold);
loadButtonImages();
int buttonheight = this.Font.Height * 2;
this.midifile = null;
this.options = null;
this.sheet = null;
playstate = stopped;
startTime = DateTime.Now.TimeOfDay;
startPulseTime = 0;
currentPulseTime = 0;
prevPulseTime = -10;
errormsg = new StringBuilder(256);
ToolTip tip;
/* Create the rewind button */
rewindButton = new Button();
rewindButton.Parent = this;
rewindButton.Image = rewindImage;
rewindButton.ImageAlign = ContentAlignment.MiddleCenter;
rewindButton.Size = new Size(buttonheight, buttonheight);
rewindButton.Location = new Point(buttonheight / 2, buttonheight / 2);
rewindButton.Click += new EventHandler(Rewind);
tip = new ToolTip();
tip.SetToolTip(rewindButton, Resources.Localization.Strings.rewind);
/* Create the play button */
playButton = new Button();
playButton.Parent = this;
playButton.Image = playImage;
playButton.ImageAlign = ContentAlignment.MiddleCenter;
playButton.Size = new Size(buttonheight, buttonheight);
playButton.Location = new Point(buttonheight / 2, buttonheight / 2);
playButton.Location = new Point(rewindButton.Location.X + rewindButton.Width + buttonheight / 2,
rewindButton.Location.Y);
playButton.Click += new EventHandler(PlayPause);
playTip = new ToolTip();
playTip.SetToolTip(playButton, Resources.Localization.Strings.play);
/* Create the stop button */
stopButton = new Button();
stopButton.Parent = this;
stopButton.Image = stopImage;
stopButton.ImageAlign = ContentAlignment.MiddleCenter;
stopButton.Size = new Size(buttonheight, buttonheight);
stopButton.Location = new Point(playButton.Location.X + playButton.Width + buttonheight / 2,
playButton.Location.Y);
stopButton.Click += new EventHandler(Stop);
tip = new ToolTip();
tip.SetToolTip(stopButton, Resources.Localization.Strings.stop);
/* Create the fastFwd button */
fastFwdButton = new Button();
fastFwdButton.Parent = this;
fastFwdButton.Image = fastFwdImage;
fastFwdButton.ImageAlign = ContentAlignment.MiddleCenter;
fastFwdButton.Size = new Size(buttonheight, buttonheight);
fastFwdButton.Location = new Point(stopButton.Location.X + stopButton.Width + buttonheight / 2,
stopButton.Location.Y);
fastFwdButton.Click += new EventHandler(FastForward);
tip = new ToolTip();
tip.SetToolTip(fastFwdButton, Resources.Localization.Strings.fastForward);
/* Create the Speed bar */
speedLabel = new Label();
speedLabel.Parent = this;
speedLabel.Text = Resources.Localization.Strings.speed + " : 100%";
speedLabel.TextAlign = ContentAlignment.MiddleLeft;
speedLabel.Height = buttonheight;
speedLabel.Width = buttonheight * 3;
speedLabel.Location = new Point(fastFwdButton.Location.X + fastFwdButton.Width + buttonheight / 2,
fastFwdButton.Location.Y);
speedBar = new TrackBar();
speedBar.Parent = this;
speedBar.Minimum = 1;
speedBar.Maximum = 150;
speedBar.TickFrequency = 10;
speedBar.TickStyle = TickStyle.BottomRight;
speedBar.LargeChange = 10;
speedBar.Value = 100;
speedBar.Width = buttonheight * 6;
speedBar.Location = new Point(speedLabel.Location.X + speedLabel.Width + 2,
speedLabel.Location.Y);
speedBar.Scroll += new EventHandler(SpeedBarChanged);
tip = new ToolTip();
tip.SetToolTip(speedBar, Resources.Localization.Strings.speed);
/* Create the Volume bar */
Label volumeLabel = new Label();
volumeLabel.Parent = this;
volumeLabel.Image = volumeImage;
volumeLabel.ImageAlign = ContentAlignment.MiddleRight;
volumeLabel.Height = buttonheight;
volumeLabel.Width = buttonheight * 2;
volumeLabel.Location = new Point(speedBar.Location.X + speedBar.Width + buttonheight / 2,
speedBar.Location.Y);
volumeBar = new TrackBar();
volumeBar.Parent = this;
volumeBar.Minimum = 1;
volumeBar.Maximum = 100;
volumeBar.TickFrequency = 10;
volumeBar.TickStyle = TickStyle.BottomRight;
volumeBar.LargeChange = 10;
volumeBar.Value = 100;
volumeBar.Width = buttonheight * 6;
volumeBar.Location = new Point(volumeLabel.Location.X + volumeLabel.Width + 2,
volumeLabel.Location.Y);
volumeBar.Scroll += new EventHandler(ChangeVolume);
tip = new ToolTip();
tip.SetToolTip(volumeBar, Resources.Localization.Strings.volume);
Height = buttonheight * 2;
/* Initialize the timer used for playback, but don't start
* the timer yet (enabled = false).
*/
timer = new Timer();
timer.Enabled = false;
timer.Interval = 100; /* 100 millisec */
timer.Tick += new EventHandler(TimerCallback);
tempSoundFile = "";
}
/** Write this Midi file to the given filename.
* If options is not null, apply those options to the midi events
* before performing the write.
* Return true if the file was saved successfully, else false.
*/
public bool ChangeSound(string destfile, MidiOptions options)
{
return Write(destfile, options);
}
/* Apply the following sound options to the midi events:
* - The tempo (the microseconds per pulse)
* - The instruments per track
* - The note number (transpose value)
* - The tracks to include
* Return the modified list of midi events.
*
* This Midi file only has one actual track, but we've split that
* into multiple fake tracks, one per channel, and displayed that
* to the end-user. So changing the instrument, and tracks to
* include, is implemented differently than ApplyOptionsToEvents().
*
* - We change the instrument based on the channel, not the track.
* - We include/exclude channels, not tracks.
* - We exclude a channel by setting the note volume/velocity to 0.
*/
private List<MidiEvent>[] ApplyOptionsPerChannel(MidiOptions options)
{
/* Determine which channels to include/exclude.
* Also, determine the instruments for each channel.
*/
int[] instruments = new int[16];
bool[] keepchannel = new bool[16];
for (int i = 0; i < 16; i++) {
instruments[i] = 0;
keepchannel[i] = true;
}
for (int tracknum = 0; tracknum < tracks.Count; tracknum++) {
MidiTrack track = tracks[tracknum];
int channel = track.Notes[0].Channel;
instruments[channel] = options.instruments[tracknum];
if (options.tracks[tracknum] == false ||
options.mute[tracknum] == true) {
keepchannel[channel] = false;
}
}
List<MidiEvent>[] newevents = CloneMidiEvents(events);
/* Set the tempo at the beginning of each track */
for (int tracknum = 0; tracknum < newevents.Length; tracknum++) {
MidiEvent mevent = CreateTempoEvent(options.tempo);
newevents[tracknum].Insert(0, mevent);
}
/* Change the note number (transpose), instrument, and tempo */
for (int tracknum = 0; tracknum < newevents.Length; tracknum++) {
foreach (MidiEvent mevent in newevents[tracknum]) {
int num = mevent.Notenumber + options.transpose;
if (num < 0)
num = 0;
if (num > 127)
num = 127;
mevent.Notenumber = (byte)num;
if (!keepchannel[mevent.Channel]) {
mevent.Velocity = 0;
}
if (!options.useDefaultInstruments) {
mevent.Instrument = (byte)instruments[mevent.Channel];
}
mevent.Tempo = options.tempo;
}
}
if (options.pauseTime != 0) {
newevents = StartAtPauseTime(newevents, options.pauseTime);
}
return newevents;
}
/** Create a new SheetMusic control, using the given raw midi byte[] data.
* The options can be null.
*/
public SheetMusic(byte[] data, string title, MidiOptions options)
{
MidiFile file = new MidiFile(data, title);
init(file, options);
}