public class Moosique {
+ // GUI and MIDI device variables
private static MooGUI gui;
private static Sequence seq;
private static Sequencer sequencer;
private static Synthesizer synthesizer;
+ private static Receiver receiver;
private static MidiChannel[] channels;
private static MidiChannel activeChannel;
- private static MidiEvent[] timeSignatures, tempoChanges;
- private static ArrayList emptyTracks;
- private static String filename, fileArg;
+ // Recording variables
+ private static Track recordTrack = null;
+ private static MooTrackView recordTrackView = null;
+ private static boolean[] quantizers = {false, false, false};
+ private static int quantizeResolution;
+
+ // Collections
+ private static ArrayList copyBuffer, emptyTracks, timeSignatures, tempoChanges;
+ private static TreeSet selection;
+ private static Map trackMute = new HashMap();
+ private static Map trackSolo = new HashMap();
+
+ // Various...
+ private static File file = null;
private static long editPosition;
- private static boolean makeGUI = true, isEdited;
private static Thread player;
+
+ // Preferences
+ private static boolean makeGUI = true, initSound = true, edited = false, drawEmptyTracks = false;
+
+ // Constants
public static final int DEFAULT_RESOLUTION = 96, DEFAULT_TRACKS = 4;
+ public static final int WHOLE_NOTE = 16, HALF_NOTE = 8, QUARTER_NOTE = 4, EIGHTH_NOTE = 2, SIXTEENTH_NOTE = 1;
/**
* Starts the application.
+ *
+ * Parses command-line arguments, acquires MIDI devices and connects them,
+ * loads a sequence and creates the GUI.
*/
public static void main (String[] args) {
- System.out.println("\nMoosique version 1.0\n");
+ out("\nMoosique version 1.0\n", true);
// Parses command-line arguments.
+ String fileArg = null;
for (int i = 0; i < args.length; i++) {
- if (args[i].equals("-n")) {makeGUI = false;}
- else if (fileArg == null) {fileArg = args[i];}
+ if (args[i].equals("-n")) makeGUI = false;
+ else if (fileArg == null) fileArg = args[i];
}
// Acquires MIDI devices and connects them.
- System.out.print("Initializing MIDI devices.");
+ out("Initializing MIDI devices.", false);
try {
+ // Configures sequencer.
sequencer = MidiSystem.getSequencer();
- System.out.print(".");
+ advanceStatus();
sequencer.open();
+ sequencer.addMetaEventListener(new SongEndListener());
+
+ // Configures synthesizer.
synthesizer = MidiSystem.getSynthesizer();
- System.out.print(".");
+ advanceStatus();
synthesizer.open();
- sequencer.getTransmitter().setReceiver(synthesizer.getReceiver());
+
+ // Connects devices.
+ receiver = synthesizer.getReceiver();
+ sequencer.getTransmitter().setReceiver(receiver);
+
+ // Configures channels.
channels = synthesizer.getChannels();
setActiveChannel(0);
} catch (MidiUnavailableException e) {
- System.out.println("Failed, quitting.");
-// System.exit(1);
+ out("Failed, quitting.", true);
+ System.exit(1);
}
- System.out.println("Done");
+ out("Done", true);
+
+ // Loads user preferences (work directory, last opened files etc).
+ loadPreferences();
//If a filename is given as the command-line argument, attempts to load a sequence from the file.
if (fileArg != null) {
- System.out.print("Loading MIDI sequence from " + fileArg + "...");
- if (!load(fileArg)) {
- System.out.println("Failed");
+ out("Loading MIDI sequence from " + fileArg + "...", false);
+ if (!load(new File(fileArg))) {
+ out("Failed, creating new sequence", true);
clearSequence();
} else {
- System.out.println("Done");
+ out("Done", true);
}
} else {
// Otherwise creates a new empty one.
// Builds GUI, unless n-flag is set.
if (makeGUI) {
- System.out.print("Building GUI...");
+ out("Building GUI.", false);
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {}
- gui = new MooGUI(seq);
- System.out.println("Done");
+ gui = new MooGUI(seq, file);
+ out("Done", true);
} else {
- System.out.print("Playing...");
+ out("Playing...", false);
play();
while (sequencer.isRunning()) {}
- System.out.println("Done");
+ out("Done", true);
quit();
}
}
+
+
+
+
+
+
+
+ /* ***
+ ** ACCESSOR METHODS **
+ *** */
+
+
+
+
+
+
+
+
+ /**
+ * Returns the currently active MidiChannel.
+ * @return the active MidiChannel
+ */
+ public static MidiChannel getActiveChannel() {
+ return activeChannel;
+ }
+
+ /**
+ * Returns the MidiChannels of the selected synthesizer.
+ * @return the available MidiChannels
+ */
+ public static MidiChannel getChannel(int i) {
+ return channels[i];
+ }
+
+ /**
+ * Returns the current copy buffer.
+ * @return the current copy buffer
+ */
+ public static ArrayList getCopyBuffer() {
+ return copyBuffer;
+ }
+
+ /**
+ * Returns the current editing position of the sequencer.
+ * @return the tick position
+ */
+ public static long getEditPosition() {
+ return editPosition;
+ }
+
/**
* Returns the GUI.
* @return the GUI
return gui;
}
+ /**
+ * Returns the receiver of the current sequencer.
+ * @return the receiver
+ */
+ public static Receiver getReceiver() {
+ return receiver;
+ }
+
/**
* Returns the current sequence.
* @return the current sequence
}
/**
- * Returns the MidiChannels of the selected synthesizer.
- * @return the available MidiChannels
+ * Returns true if the current sequence has been edited.
+ * @return the tick position
*/
- public static MidiChannel[] getChannels() {
- return channels;
+ public static boolean isEdited() {
+ return edited;
}
/**
- * Returns the MidiChannels of the selected synthesizer.
- * @return the available MidiChannels
+ * Returns whether the given track should be drawn
+ * @return true if the given track should be drawn
*/
- public static MidiChannel getChannel(int i) {
- return channels[i];
+ public static boolean shouldBeDrawn(Track track) {
+ if (drawEmptyTracks) return true;
+ else return (!emptyTracks.contains(track));
}
+
+
+
+
+
+
+
+ /* ***
+ ** MUTATOR METHODS **
+ *** */
+
+
+
+
+
+
+
+
/**
- * Returns the currently active MidiChannel.
- * @return the active MidiChannel
+ * Fast forwards the current sequence the given number of measures.
+ * @param measures the number of measures to fast forward
*/
- public static MidiChannel getActiveChannel() {
- return activeChannel;
+ public static void forward(long ticks) {
+ editPosition += ticks;
+ }
+
+ /**
+ * Rewinds the current sequence the given number of measures.
+ * @param measures the number of measures to rewind
+ */
+ public static void rewind(long ticks) {
+ editPosition -= ticks;
}
/**
}
/**
- * Replaces the current sequence with a new one, holding three empty tracks.
+ * Sets the current copy buffer.
+ * @param the copy buffer
*/
- public static void clearSequence() {
- // Creates a new sequence and sends it to the sequencer.
- try {
- seq = new Sequence(Sequence.PPQ, DEFAULT_RESOLUTION, DEFAULT_TRACKS);
- sequencer.setSequence(seq);
- } catch (InvalidMidiDataException e) {}
- // Sends sequence to GUI.
- if (gui != null) gui.setSequence(seq);
+ public static void setCopyBuffer(ArrayList buffer) {
+ copyBuffer = buffer;
}
/**
- * Starts playback of the current sequence.
+ * Sets whether empty tracks should be drawn
+ * @param state true if empty tracks should be drawn
*/
- public static void play() {
- sequencer.setTickPosition(editPosition);
- resume();
+ public static void setDrawEmptyTracks(boolean state) {
+ drawEmptyTracks = state;
}
/**
- * Pauses playback of the current sequence.
+ * Sets the current sequence as edited, which implies prompts when loading a new sequence.
*/
- public static void pause() {
- if (sequencer.isRunning()) {
- sequencer.stop();
+ public static void setEdited() {
+ edited = true;
+ }
+
+ /**
+ * Sets the current editing position of the sequencer.
+ * @param ticks the tick position
+ */
+ public static void setEditPosition(long ticks) {
+ editPosition = ticks;
+ }
+
+ /**
+ * Sets the solo setting of the given track.
+ * @param on true for solo, false for not
+ */
+ public static void setTrackSolo(Track track, boolean on){
+ trackSolo.put(track, new Boolean(on));
+ }
+
+ /**
+ * Sets the mute setting of the given track.
+ * @param on true for mute, false for not
+ */
+ public static void setTrackMute(Track track, boolean on){
+ trackMute.put(track, new Boolean(on));
+ }
+
+ /**
+ * Sets the current playback volume.
+ * @param volume the volume, between 0 and 1
+ */
+ public void setVolume(long volume) {
+ for (int i = 0; i < channels.length; i++) {
+ channels[i].controlChange(7, (int)(volume * 127.0));
}
- if (player != null) player.interrupt();
+ }
+
+
+
+
+
+
+
+
+ /* ***
+ ** SELECTION METHODS **
+ *** */
+
+
+
+
+
+
+
+
+ /**
+ * Returns the current selection.
+ * @return the current selection
+ */
+ public static TreeSet getSelection() {
+ return selection;
+ }
+
+ /**
+ * Selects the given note
+ * @param the note to select
+ */
+ public static void selectNote(MooNoteElement elem) {
+ selection.add(elem);
+ }
+
+ /**
+ * Deselects the given note
+ * @param the note to deselect
+ */
+ public static void deselectNote(MooNoteElement elem) {
+ selection.remove(elem);
+ }
+
+ /**
+ * Deselects all notes.
+ */
+ public static void deselectAllNotes() {
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ ((MooNoteElement)it.next()).deselect();
+ }
+ selection.clear();
+ }
+
+ /**
+ * Determines if the given MooNoteElement is the only one in the track view that is selected.
+ * @return if the given element is the only selected one
+ */
+ public static boolean isTheOnlySelected(MooNoteElement elem) {
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ if (!it.next().equals(elem)) return false;
+ }
+ return true;
+ }
+
+
+
+
+
+
+
+
+ /* ***
+ ** PLAYBACK METHODS **
+ *** */
+
+
+
+
+
+
+
+
+ /**
+ * Starts playback of the current sequence.
+ */
+ public static void play() {
+ sequencer.setTickPosition(editPosition);
+ resume();
}
/**
*/
public static void resume() {
gui.update(0);
+ try {
+ sequencer.setSequence(seq);
+ } catch (InvalidMidiDataException e) {}
+ Track[] tracks = seq.getTracks();
+
sequencer.start();
+ for (int i = 0; i < tracks.length; i++) {
+
+ Object ob = trackSolo.get(tracks[i]);
+ if(ob instanceof Boolean){
+ sequencer.setTrackSolo(i,((Boolean)ob).booleanValue());
+ }
+
+ ob = trackMute.get(tracks[i]);
+ if(ob instanceof Boolean){
+ sequencer.setTrackMute(i,((Boolean)ob).booleanValue());
+ }
+ }
+
// Disables input to volatile components
// gui.disable();
// Creates the visualisation thread and starts it.
- player = new Thread () {
- public void run() {
- long ticksPerSixteenth = seq.getResolution()/4;
- System.out.println("Ticks/16: " + ticksPerSixteenth);
- long position = sequencer.getTickPosition();
- while(sequencer.isRunning()) {
- long pos = sequencer.getTickPosition();
- long tickDiff = pos - position;
- System.out.print(" ... " + tickDiff);
- position = pos;
-
- // Updates the GUI with the current tick position.
- gui.update(sequencer.getTickPosition());
-
- // Puts the thread to sleep for as long as it takes
- // the sequencer to reach the next sixteenth.
- try {
- sleep((long)((15000 / getTempo()) * (tickDiff / ticksPerSixteenth)));
- } catch (InterruptedException e) {
- Moosique.stop();
- }
- }
- Moosique.stop();
- }
- };
+ player = new PlayThread();
player.start();
}
+ /**
+ * Pauses playback of the current sequence.
+ */
+ public static void pause() {
+ if (sequencer.isRunning()) {
+ sequencer.stop();
+ }
+ player = null;
+ }
+
/**
* Stops playback of the current sequence.
*/
sequencer.stop();
}
sequencer.setTickPosition(editPosition);
- if (player != null) player.interrupt();
+ player = null;
gui.update((long)0);
+
+ if (recordTrack != null && recordTrackView != null) {
+ recordTrackView.disableKeyboardRecording();
+ sequencer.stopRecording();
+ sequencer.recordDisable(recordTrack);
+ if (quantizers[0]) recordTrackView.placeNewNotes(quantize(
+ convertTrack(recordTrack), quantizeResolution, quantizers[1], quantizers[2]));
+ else recordTrackView.placeNewNotes(Moosique.convertTrack(recordTrack));
+ }
}
/**
- * Returns the current editing position of the sequencer.
- * @return the tick position
+ * Enables recording to the given track.
+ * @param track the track in which to store the recorded data
+ * @param tempo the channel from which to record data
+ * @param quantizers an array of booleans where 0 = quantize?, 1 = location, 2 = duration
+ * @param resolution the note size to round each note to
+ * @return if the recording was initialised successfully
*/
- public static long getEditPosition() {
- return editPosition;
+ public static boolean record(Track track, int channel, boolean[] quants, int resolution) {
+ try {
+ sequencer.recordEnable(track, channel);
+ sequencer.startRecording();
+ } catch(Exception e) {
+ e.printStackTrace();
+ return false;
+ }
+ quantizers = quants;
+ quantizeResolution = resolution;
+ recordTrack = track;
+ recordTrackView = gui.getView().getTrackView(track);
+ recordTrackView.enableKeyboardRecording();
+ Moosique.setEdited();
+ return true;
}
+
+
+
+
+
+
+
+ /* ***
+ ** TEMPO & TIME SIGNATURE METHODS **
+ *** */
+
+
+
+
+
+
+
+
/**
- * Sets the current editing position of the sequencer.
- * @param ticks the tick position
+ * Returns the byte array for the given tempo.
+ * @param tempo the tempo in beats per minute
+ * @return an array of bytes representing the given tempo
*/
- public static void setEditPosition(long ticks) {
- editPosition = ticks;
+ public static byte[] encodeTempo(int tempo) {
+ int microSecsPerQuarter = 60000000 / tempo;
+ byte[] b = new byte[3];
+ b[0] = (byte)(microSecsPerQuarter / 65536);
+ b[1] = (byte)((microSecsPerQuarter - (b[0] * 65536)) / 256);
+ b[2] = (byte)(microSecsPerQuarter - (b[0] * 65536) - (b[1] * 256));
+ return b;
}
/**
- * Returns the tempo of the current sequence.
- * @return the tick position
+ * Returns the tempo for the given byte array.
+ * @param an array of three bytes representing the tempo
+ * @return the tempo in beats per minute
*/
- public static int getTempo() {
- return 120;
- // if (tempoMsg == null) return 0;
+ public static int decodeTempo(byte[] bytes) {
+ return 60000000 / (bytes[0] * 65536 + bytes[1] * 256 + bytes[2]);
}
/**
- * Sets the current editing position of the sequencer.
- * @param ticks the tick position
+ * Returns the tempo in the given tick position.
+ * @param tick the tick position for which to return the tempo
+ * @return the tempo at the specified tick position
*/
- public static void setTempo(int bpm) {
- // tempoMsg
+ public static int getTempo(long tick) {
+ if (tempoChanges.size() == 0) return 120;
+ MidiEvent tempoEvent = (MidiEvent)tempoChanges.get(0);
+ if (tempoChanges.size() > 1) {
+ for (int i = 1; i < tempoChanges.size(); i++) {
+ MidiEvent nextTempoEvent = (MidiEvent)tempoChanges.get(i);
+ if (nextTempoEvent.getTick() < tick && nextTempoEvent.getTick() > tempoEvent.getTick())
+ tempoEvent = nextTempoEvent;
+ }
+ }
+ return decodeTempo(((MetaMessage)tempoEvent.getMessage()).getData());
}
/**
- * Returns the tempo of the current sequence.
- * @return the tick position
+ * Sets the tempo at the given tick position.
+ * @param ticks the tick position
*/
- public static int[] getTimeSig() {
- int[] ts = {4, 4};
- return ts;
- // if (timeSigMsg == null) return 0;
+ public static void setTempo(long tick, int bpm) {
+ // Checks for a tempo event at the given tick position.
+ MidiEvent tempoEvent = null;
+ Iterator it = tempoChanges.iterator();
+ while(it.hasNext()) {
+ MidiEvent nextTempoEvent = (MidiEvent)it.next();
+ if (nextTempoEvent.getTick() == tick) {
+ tempoEvent = nextTempoEvent;
+ break;
+ }
+ }
+
+ // If none was found, creates and adds a new one.
+ if (tempoEvent == null) {
+ tempoEvent = new MidiEvent(new MetaMessage(), tick);
+ (seq.getTracks())[0].add(tempoEvent);
+ tempoChanges.add(tempoEvent);
+ Collections.sort(tempoChanges, new MidiEventComparator());
+ }
+
+ // Sets the tempo of the event (found or created).
+ try {
+ ((MetaMessage)tempoEvent.getMessage()).setMessage(81, encodeTempo(bpm), 3);
+ } catch (InvalidMidiDataException e) {}
}
/**
- * Sets the current editing position of the sequencer.
- * @param ticks the tick position
+ * Returns the byte array for the given time signature.
+ * @param numerator the numerator of the time signature
+ * @param denominator the denominator of the time signature
+ * @return an array of bytes representing the given time signature
*/
- public static void setTimeSig(int bpm) {
- // timeSigMsg
+ public static byte[] encodeTimeSig(int numerator, int denominator) {
+ byte[] b = {
+ (byte)numerator,
+ (byte)(Math.log(denominator) / Math.log(2)), // logarithm of denominator in base 2
+ (byte)96,
+ (byte)8
+ };
+ return b;
}
-
/**
- * Returns true if the current sequence has been edited.
- * @return the tick position
+ * Returns the time signature for the given byte array.
+ * @param an array of four bytes representing the time signature
+ * @return an array of two integers where [0] is the numerator and [1] the denominator
*/
- public static boolean isEdited() {
- return isEdited;
+ public static int[] decodeTimeSig(byte[] bytes) {
+ int[] t = {
+ (int)bytes[0],
+ (int)(1 << bytes[1])
+ };
+ return t;
}
/**
- * Sets the current sequence as edited, which implies prompts when loading a new sequence.
+ * Returns the time signature in the given tick position.
+ * @param tick the tick position for which to return the time signature
+ * @return an array of two integers where [0] is the numerator and [1] the denominator
*/
- public static void setEdited() {
- isEdited = true;
+ public static int[] getTimeSig(long tick) {
+ int[] ts = {4, 4};
+ if (timeSignatures.size() == 0) return ts;
+ MidiEvent timeSigEvent = (MidiEvent)timeSignatures.get(0);
+ if (timeSignatures.size() > 1) {
+ for (int i = 1; i < timeSignatures.size(); i++) {
+ MidiEvent nextTimeSigEvent = (MidiEvent)timeSignatures.get(i);
+ if (nextTimeSigEvent.getTick() <= tick && nextTimeSigEvent.getTick() > timeSigEvent.getTick())
+ timeSigEvent = nextTimeSigEvent;
+ }
+ }
+ return decodeTimeSig(((MetaMessage)timeSigEvent.getMessage()).getData());
}
/**
- * Rewinds the current sequence the given number of measures.
- * @param measures the number of measures to rewind
+ * Sets the time signature at the given tick position.
+ * @param ticks the tick position
*/
- public static void rewind(long ticks) {
- editPosition -= ticks;
+ public static void setTimeSig(long tick, int numerator, int denominator) {
+ // Checks for a time signature event at the given tick position.
+ MidiEvent timeSigEvent = null;
+ Iterator it = timeSignatures.iterator();
+ while(it.hasNext()) {
+ MidiEvent nextTimeSigEvent = (MidiEvent)it.next();
+ if (nextTimeSigEvent.getTick() == tick) {
+ timeSigEvent = nextTimeSigEvent;
+ break;
+ }
+ }
+
+ // If none was found, creates and adds a new one.
+ if (timeSigEvent == null) {
+ timeSigEvent = new MidiEvent(new MetaMessage(), tick);
+ (seq.getTracks())[0].add(timeSigEvent);
+ timeSignatures.add(timeSigEvent);
+ Collections.sort(timeSignatures, new MidiEventComparator());
+ }
+
+ // Sets the time signature of the event (found or created).
+ try {
+ ((MetaMessage)timeSigEvent.getMessage()).setMessage(88, encodeTimeSig(numerator, denominator), 4);
+ } catch (InvalidMidiDataException e) {}
+ }
+
+ /**
+ * Calculates the position (measures, beats, ticks) in the current sequence for the given tick position.
+ * @param tickPosition the tick position for which to calculate the position
+ * @return an array of integers where index 0 is measures, 1 is beats and 2 is ticks.
+ */
+ public static int[] getPositionForTicks(long tickPosition) {
+ int ticksPerBeat = seq.getResolution();
+ long measures = 0, beats = 0, ticks = 0;
+
+ // Counts for each time signature change up to the last one before the given tick position.
+ Iterator it = timeSignatures.iterator();
+ MidiEvent lastTSEvent = (MidiEvent)it.next();
+ while(it.hasNext()) {
+ MidiEvent nextTSEvent = (MidiEvent)it.next();
+ if (nextTSEvent.getTick() > tickPosition) break;
+ long tickDiff = nextTSEvent.getTick() - lastTSEvent.getTick();
+ int[] ts = decodeTimeSig(((MetaMessage)lastTSEvent.getMessage()).getData());
+ int beatsPerMeasure = ts[0] * (4 / ts[1]);
+ long thisTSMeasures = tickDiff / (beatsPerMeasure * ticksPerBeat);
+ measures += thisTSMeasures;
+ long thisTSBeats = (tickDiff - thisTSMeasures * beatsPerMeasure * ticksPerBeat) / ticksPerBeat;
+ beats += thisTSBeats;
+ ticks += tickDiff - thisTSMeasures * beatsPerMeasure * ticksPerBeat - thisTSBeats * ticksPerBeat;
+ lastTSEvent = nextTSEvent;
+ }
+
+ // Counts from the given tick position to the last time signature change before it.
+ long tickDiff = tickPosition - lastTSEvent.getTick();
+ int[] ts = decodeTimeSig(((MetaMessage)lastTSEvent.getMessage()).getData());
+ int beatsPerMeasure = ts[0] * (4 / ts[1]);
+ long thisTSMeasures = tickDiff / (beatsPerMeasure * ticksPerBeat);
+ measures += thisTSMeasures;
+ long thisTSBeats = (tickDiff - thisTSMeasures * beatsPerMeasure * ticksPerBeat) / ticksPerBeat;
+ beats += thisTSBeats;
+ ticks += tickDiff - thisTSMeasures * beatsPerMeasure * ticksPerBeat - thisTSBeats * ticksPerBeat;
+
+ // Corrects any overflows.
+ if (ticks > ticksPerBeat) {
+ beats += Math.floor(ticks / ticksPerBeat);
+ ticks = ticks % ticksPerBeat;
+ }
+ if (beats > beatsPerMeasure) {
+ measures += Math.floor(beats / beatsPerMeasure);
+ beats = beats % beatsPerMeasure;
+ }
+
+ // Returns the calculated values.
+ int[] pos = {(int)measures, (int)beats, (int)ticks};
+ return pos;
}
/**
- * Fast forwards the current sequence the given number of measures.
- * @param measures the number of measures to fast forward
+ * Calculates the tick position in the current sequence for the given position (measures, beats, ticks).
+ * @param measures the measure of the current position
+ * @param beats the beat of the current position
+ * @param tick the tick of the current position
+ * @return the tick position.
*/
- public static void forward(long ticks) {
- editPosition += ticks;
+ public static long getTicksForPosition(int measures, int beats, int ticks) {
+ int res = seq.getResolution();
+ int[] lastTSPos = new int[3];
+ long tickPosition = 0;
+
+ // Counts for each time signature change up to the last one before the given tick position.
+ Iterator it = timeSignatures.iterator();
+ MidiEvent lastTSEvent = (MidiEvent)it.next();
+ while(it.hasNext()) {
+ MidiEvent nextTSEvent = (MidiEvent)it.next();
+ int[] nextTSPos = getPositionForTicks(nextTSEvent.getTick());
+ if (nextTSPos[0] >= measures) break;
+ lastTSPos = nextTSPos;
+ lastTSEvent = nextTSEvent;
+ }
+
+ // Counts from the given tick position to the last time signature change before it.
+ int measdiff = measures - lastTSPos[0];
+ int[] ts = decodeTimeSig(((MetaMessage)lastTSEvent.getMessage()).getData());
+ int beatsPerMeasure = ts[0] * (4 / ts[1]);
+ tickPosition = lastTSEvent.getTick() + (beatsPerMeasure * measures + beats) * res + ticks;
+
+ return tickPosition;
}
+
+
+
+
+
+
+
+ /* ***
+ ** SYSTEM & IO METHODS **
+ *** */
+
+
+
+
+
+
+
+
/**
- * Loads the MooSequence in the given file.
- * @param filename the filename to use
+ * Replaces the current sequence with a new one, holding three empty tracks.
*/
- public static boolean load(String file) {
- // Loads sequence from file
- filename = file;
+ public static void clearSequence() {
+ // Reinitializes sequence variables
+ file = null;
+ reinitializeLists();
+
try {
- seq = MidiSystem.getSequence(new File(filename));
- } catch (InvalidMidiDataException e) {
- return false;
- } catch (IOException e) {
- return false;
- }
- isEdited = false;
+ // Creates a new sequence.
+ seq = new Sequence(Sequence.PPQ, DEFAULT_RESOLUTION, DEFAULT_TRACKS);
+ Track[] tracks = seq.getTracks();
- Track[] tracks = seq.getTracks();
- emptyTracks = new ArrayList();
+ // Sets default tempo (120) and time signature (4/4) at the beginning of the sequence.
+ setTempo(0, 120);
+ setTimeSig(0, 4, 4);
- // Searches track 0 for changes in tempo and time signature.
+ // Sets program and title for the tracks.
+ initializeTrack(tracks[1], 0, 24, "Guitar");
+ initializeTrack(tracks[2], 1, 33, "Bass");
+ initializeTrack(tracks[3], 9, 0, "Drums");
+ } catch (InvalidMidiDataException e) {}
+
+ // Sends the sequence to the GUI.
+ if (gui != null) gui.setSequence(seq, null);
+ }
+
+ /**
+ * Creates event in the given track for program change and title.
+ */
+ private static void initializeTrack(Track track, int channel, int program, String title) {
+ // Creates program change and title message.
+ ShortMessage programMsg = new ShortMessage();
+ MetaMessage titleMsg = new MetaMessage();
+
+ // Sets the data of the messages.
+ try {
+ programMsg.setMessage(ShortMessage.PROGRAM_CHANGE, channel, program, 0);
+ titleMsg.setMessage(3, title.getBytes(), title.length());
+ } catch (InvalidMidiDataException e) {}
+
+ // Sends the program change to the channel
+ getChannel(channel).programChange(program);
+
+ // Adds them to the track.
+ track.add(new MidiEvent(programMsg, (long)0));
+ track.add(new MidiEvent(titleMsg, (long)0));
+ }
+
+ /**
+ * Wraps each NoteOn event in the track with its NoteOff event in a MooNote.
+ * @param track the track to convert
+ * @param quantize whether to round locations and durations in the track to nearest 16th
+ * @return a list of the created MooNotes
+ */
+ public static List convertTrack(Track track) {
+ // Searches the track for NoteOn and NoteOff events
+ ArrayList noteOns = new ArrayList(track.size() / 2);
+ ArrayList noteOffs = new ArrayList(track.size() / 2);
+ ArrayList newMooNotes = new ArrayList();
MidiEvent event;
- MetaMessage metaMsg;
- ArrayList ts = new ArrayList(), tc = new ArrayList();
- for (int i = 0; i < tracks[0].size(); i++) {
- event = tracks[0].get(i);
- if (event.getMessage().getStatus() == MetaMessage.META) {
- metaMsg = (MetaMessage)event.getMessage();
- switch(metaMsg.getType()) {
- case 81: tc.add(event); break;
- case 88: ts.add(event);
- }
- }
+ for (int j = 0; j < track.size(); j++) {
+ event = track.get(j);
+ if (event.getMessage().getStatus() >= 144 &&
+ event.getMessage().getStatus() < 160) noteOns.add(event);
+ if (event.getMessage().getStatus() >= 128 &&
+ event.getMessage().getStatus() < 144) noteOffs.add(event);
}
-// timeSignatures = ts.toArray(timeSignatures);
-// tempoChanges = tc.toArray(tempoChanges);
+ noteOns.trimToSize();
+ noteOffs.trimToSize();
+ if (noteOns.size() == 0) emptyTracks.add(track);
+
+ // Sorts the note lists by tick position.
+ Comparator c = new MidiEventComparator();
+ Collections.sort(noteOns, c);
+ Collections.sort(noteOffs, c);
- // Wraps each NoteOn event with its NoteOff event in a MooNote
- ArrayList noteOns, noteOffs;
- for (int i = 0; i < tracks.length; i++) {
- // Searches the sequence for NoteOn and NoteOff events
- noteOns = new ArrayList(tracks[i].size() / 2);
- noteOffs = new ArrayList(tracks[i].size() / 2);
- for (int j = 0; j < tracks[i].size(); j++) {
- event = tracks[i].get(j);
- if (event.getMessage().getStatus() >= 144 &&
- event.getMessage().getStatus() < 160) noteOns.add(event);
- if (event.getMessage().getStatus() >= 128 &&
- event.getMessage().getStatus() < 144) noteOffs.add(event);
- }
- noteOns.trimToSize();
- noteOffs.trimToSize();
- boolean isEmpty = (noteOns.size() == 0);
- String text = "Track " + i + " has " + noteOns.size() + "/" + noteOffs.size() + "/" + tracks[i].size();
- if (isEmpty) text += " and will not be removed.";
- System.out.println(text);
- emptyTracks.add(tracks[i]);
-
- // Sorts the note lists by tick position.
- Comparator c = new Comparator() {
- public int compare(Object o1, Object o2) {
- return (int)(((MidiEvent)o1).getTick() - ((MidiEvent)o2).getTick());
- }
- };
- Collections.sort(noteOns, c);
- Collections.sort(noteOffs, c);
-
- // For each NoteOn event, finds its NoteOff event and replaces it with a MooNote.
- Iterator iOn = noteOns.iterator(), iOff;
- MidiEvent on, off = null, nextOff;
- ShortMessage onMsg, nextOffMsg;
- while(iOn.hasNext()) {
- on = (MidiEvent)iOn.next();
+ // Replaces each NoteOn event it with a MooNote containing a reference to the NoteOff event.
+ Iterator iOn = noteOns.iterator(), iOff;
+ MidiEvent on, off = null, nextOff;
+ ShortMessage onMsg, nextOffMsg;
+ while(iOn.hasNext()) {
+ on = (MidiEvent)iOn.next();
+ if (!(on instanceof MooNote)) {
onMsg = (ShortMessage)on.getMessage();
iOff = noteOffs.iterator();
while(iOff.hasNext()) {
}
}
- tracks[i].remove(on);
+ track.remove(on);
+ MooNote mn;
if (off != null) {
- tracks[i].add(new MooNote(on, off));
+ mn = new MooNote(on, off);
} else {
- tracks[i].add(new MooNote(on));
+ mn = new MooNote(on, new MidiEvent((ShortMessage)on.getMessage().clone(), on.getTick() + 48));
}
+ track.add(mn);
+ newMooNotes.add(mn);
iOn.remove();
}
}
+ return newMooNotes;
+ }
- /*
- Collections.sort(track[i].events, new Comparator() {
- public int compare(Object o1, Object o2) {
- return ((MidiEvent)o2).getTick() - ((MidiEvent)o1).getTick();
- }
- });
+ /**
+ * Loads a MIDI sequence from the given file.
+ * @param filename the filename to use
+ */
+ public static boolean load(File loadFile) {
+ // Loads sequence from file
+ try {seq = MidiSystem.getSequence(loadFile);}
+ catch (Exception e) {return false;}
+ file = loadFile;
+ edited = false;
- // Searches the sequence for NoteOn events
- MidiEvent noteOn, noteOff = null, nextEvent;
- MidiMessage nextMsg;
- ShortMessage shortMsg;
+ Track[] tracks = seq.getTracks();
+ reinitializeLists();
- for (int i = 0; i < tracks.length; i++) {
- for (int j = 0; j < tracks[i].size(); j++) {
- noteOn = tracks[i].get(j);
- if (noteOn.getMessage().getStatus() == ShortMessage.NOTE_ON) {
- // Finds the corresponding NoteOff event
- for (int k = j + 1; k < tracks[i].size(); k++) {
- nextEvent = tracks[i].get(k);
- nextMsg = nextEvent.getMessage();
- if (nextMsg instanceof ShortMessage) {
- shortMsg = (ShortMessage) nextMsg;
- if (shortMsg.getCommand() == ShortMessage.NOTE_OFF && shortMsg.getChannel() == ((ShortMessage)noteOn.getMessage()).getChannel() && shortMsg.getData1() == ((ShortMessage)noteOn.getMessage()).getData1()) {
- noteOff = nextEvent;
- break;
- }
- }
- }
- // Replaces the NoteOn event with a MooNote, if possible with the corresponding NoteOff event
- tracks[i].remove(noteOn);
- if (noteOff != null) {
- tracks[i].add(new MooNote(noteOn, noteOff));
- } else {
- tracks[i].add(new MooNote(noteOn));
- }
+ // Searches track 0 for changes in tempo and time signature.
+ MidiEvent event;
+ MetaMessage metaMsg;
+ for (int i = 0; i < tracks[0].size(); i++) {
+ event = tracks[0].get(i);
+ if (event.getMessage().getStatus() == MetaMessage.META) {
+ metaMsg = (MetaMessage)event.getMessage();
+ switch(metaMsg.getType()) {
+ case 81: tempoChanges.add(event); break;
+ case 88: timeSignatures.add(event);
}
}
}
-*/
+ Comparator c = new MidiEventComparator();
+ Collections.sort(tempoChanges, c);
+ Collections.sort(timeSignatures, c);
+
+ try {
+ // If no time signature specified at tick 0, adds the standard one.
+ if (timeSignatures.size() == 0 || ((MidiEvent)timeSignatures.get(0)).getTick() != 0) {
+ MetaMessage timeSigMsg = new MetaMessage();
+ timeSigMsg.setMessage(88, encodeTimeSig(4, 4), 4);
+ timeSignatures.add(0, new MidiEvent(timeSigMsg, (long)0));
+ }
+
+ // If no tempo specified at tick 0, adds the standard one.
+ if (tempoChanges.size() == 0 || ((MidiEvent)tempoChanges.get(0)).getTick() != 0) {
+ MetaMessage tempoMsg = new MetaMessage();
+ tempoMsg.setMessage(81, encodeTempo(120), 3);
+ tempoChanges.add(0, new MidiEvent(tempoMsg, (long)0));
+ }
+ } catch (Exception e) {}
+
+ // Converts tracks.
+ for (int i = 0; i < tracks.length; i++) {
+ convertTrack(tracks[i]);
+ }
+
// Sends sequence to GUI and sequencer, then returns
- if (gui != null) gui.setSequence(seq);
+ if (gui != null) gui.setSequence(seq, file);
try {
sequencer.setSequence(seq);
} catch (InvalidMidiDataException e) {}
return true;
}
+ /**
+ * Quantizes the given list of MIDI events
+ * @param notes a list of the notes to quantize
+ * @param resolution the note size to round each note to
+ * @param location whether the quantize should affect the location of the note
+ * @param duration whether the quantize should affect the duration of the note
+ */
+ public static List quantize(List notes, int resolution, boolean location, boolean duration) {
+ Iterator it = notes.iterator();
+ int noteSize = resolution * seq.getResolution() / 4;
+ while(it.hasNext()) {
+ MidiEvent note = (MidiEvent)it.next();
+ if (note instanceof MooNote) {
+ MooNote mn = (MooNote)note;
+ if (location) mn.setTick(Math.round(mn.getTick() / noteSize) * noteSize);
+ if (duration) {
+ int length = Math.round(mn.getDuration() / noteSize) * noteSize;
+ if (length < noteSize) length = noteSize;
+ mn.setDuration(length);
+ }
+ }
+ }
+ return notes;
+ }
+
+ /**
+ * Reinitializes sequence-specific collections.
+ */
+ private static void reinitializeLists() {
+ emptyTracks = new ArrayList();
+ timeSignatures = new ArrayList();
+ tempoChanges = new ArrayList();
+ copyBuffer = new ArrayList();
+ trackSolo = new HashMap();
+ trackMute = new HashMap();
+ selection = new TreeSet();
+ }
+
+ /**
+ * Loads the user preferences.
+ */
+ public static void loadPreferences() {
+
+ }
+
+ /**
+ * Saves the user preferences.
+ */
+ public static void savePreferences() {
+
+ }
+
+ /**
+ * Prompts the user to save any unsaved changes.
+ */
+ public static boolean promptOnUnsavedChanges() {
+ if (!edited) return false;
+ int exitOption = JOptionPane.showConfirmDialog(gui,
+ "The current sequence has been edited, but not saved.\nDo you wish to continue anyway?",
+ "File not saved - continue?",
+ JOptionPane.OK_CANCEL_OPTION,
+ JOptionPane.WARNING_MESSAGE);
+ if (exitOption == JOptionPane.CANCEL_OPTION || exitOption == JOptionPane.CLOSED_OPTION) return true;
+ return false;
+ }
+
+ /**
+ * Saves the current sequence to the previously given filename.
+ */
+ public static boolean save() {
+ if (file == null) return false;
+ else {
+ saveAs(file);
+ return true;
+ }
+ }
+
/**
* Saves the current sequence to the given filename
* @param file the filename to use
*/
- public static void saveAs(String file) {
+ public static boolean saveAs(File saveFile) {
try {
- MidiSystem.write(seq, 1, new File(filename));
- } catch (IOException e) {}
- filename = file;
- gui.setStatus("Saved " + file);
+ MidiSystem.write(seq, 1, saveFile);
+ file = saveFile;
+ edited = false;
+ gui.setStatus("Saved " + file.getAbsolutePath());
+ return true;
+ } catch (IOException e) {
+ gui.setStatus("Failed in saving " + file.getAbsolutePath());
+ return false;
+ }
}
/**
- * Saves the current sequence to the previously given filename.
+ * Prints the given string to the System output.
*/
- public static void save() {
- saveAs(filename);
+ private static void out(String text, boolean newLine) {
+ if (newLine) System.out.println(text);
+ else System.out.print(text);
+ }
+
+ /**
+ * Advances the current progress counter by printing a "." to the System output.
+ */
+ private static void advanceStatus() {
+ out(".", false);
}
/**
* Releases all reserved devices and exits the program.
*/
public static void quit() {
+ if (gui != null) {
+ if (promptOnUnsavedChanges()) return;
+ }
+ savePreferences();
if (sequencer.isOpen()) sequencer.close();
if (synthesizer.isOpen()) synthesizer.close();
System.exit(0);
}
-}
\ No newline at end of file
+
+ /**
+ * A Ccmparator for sorting lists of MidiEvents.
+ */
+ public static class MidiEventComparator implements Comparator {
+ public int compare(Object o1, Object o2) {
+ int diff = (int)(((MidiEvent)o1).getTick() - ((MidiEvent)o2).getTick());
+ if (diff != 0 || !(((MidiEvent)o1).getMessage() instanceof ShortMessage) || !(((MidiEvent)o2).getMessage() instanceof ShortMessage)) return diff;
+ return (((ShortMessage)((MidiEvent)o1).getMessage()).getData1() - ((ShortMessage)((MidiEvent)o2).getMessage()).getData1());
+ }
+ }
+
+ /**
+ * The thread that updates the GUI during playback.
+ */
+ public static class PlayThread extends Thread {
+ public void run() {
+ Thread currentThread = Thread.currentThread();
+ while(currentThread == player) {
+ gui.update(sequencer.getTickPosition());
+ try {
+ sleep(10);
+ } catch (InterruptedException e) {
+ Moosique.stop();
+ }
+ }
+ }
+ }
+
+ /**
+ * A listener for detecting the Meta event signifying the end of the sequence.
+ */
+ public static class SongEndListener implements MetaEventListener {
+ public void meta(MetaMessage event) {
+ if (event.getType() == 47)
+ stop();
+ }
+ }
+}
projects / moosique.git / blobdiff