X-Git-Url: https://ruin.nu/git/?p=moosique.git;a=blobdiff_plain;f=Moosique.java;h=09e8395707b175f41a9ab18e94b4a0858c8ef333;hp=609372bb4a77e1604e44b60f616ebbbae0075dfa;hb=6154ba318198471a2b94391df6aab6f2b6cd9b29;hpb=aed0c05be0c99d5615ca9c49cd7ffac177557470

diff --git a/Moosique.java b/Moosique.java
index 609372b..09e8395 100644
--- a/Moosique.java
+++ b/Moosique.java
@@ -1,101 +1,633 @@
 import javax.sound.midi.*;
 import java.io.*;
+import javax.swing.*;
+import java.util.*;
 
 /**
- * Moosique - The trackers approach to MIDI
- * blaha
- * Main class that handles initiation, IO and sound FX.
+ * Moosique - The MIDI Tracker
  * 
- * @author  Andersson, Andreen, Lanneskog, Pehrson
- * @version 1
+ * Main class that handles initiation, IO and sound.
+ * 
+ * @author  Einar Pehrson
  */
  
 public class Moosique {
 
 	private static MooGUI gui;
-	private static MooSequence seq;
+	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 Map trackMute = new HashMap();
+	private static Map trackSolo = new HashMap();
+	private static Thread player;
+
 	private static String filename;
+	private static long editPosition;
+	private static boolean makeGUI = true, initSound = true, edited = false, drawEmptyTracks = false;
+	public static final int DEFAULT_RESOLUTION = 96, DEFAULT_TRACKS = 4;
 
 	/** 
-	 * Runs the application.
+	 * 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");
+
+		// Parses command-line arguments.
+		String fileArg = null;
+		for (int i = 0; i < args.length; i++) {
+			if (args[i].equals("-n")) makeGUI = false;
+			else if (args[i].equals("-m")) initSound = false;
+			else if (fileArg == null) fileArg = args[i];
+		}
+
+		// Acquires MIDI devices and connects them.
+		System.out.print("Initializing MIDI devices.");
+		try {
+			sequencer = MidiSystem.getSequencer();
+			System.out.print(".");
+			sequencer.open();
+			synthesizer = MidiSystem.getSynthesizer();
+			System.out.print(".");
+			synthesizer.open();
+			receiver = synthesizer.getReceiver();
+			sequencer.getTransmitter().setReceiver(receiver);
+			channels = synthesizer.getChannels();
+			setActiveChannel(0);
+		} catch (MidiUnavailableException e) {
+			System.out.println("Failed, quitting.");
+			System.exit(1);
+		}
+		System.out.println("Done");
+
+		//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, creating new sequence");
+				clearSequence();
+			} else {
+				System.out.println("Done");
+			}
+		} else {
+			// Otherwise creates a new empty one.
+			clearSequence();
+		}
+
+		// Builds GUI, unless n-flag is set.
+		if (makeGUI) {
+			System.out.print("Building GUI.");
+			try {
+				UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+			} catch (Exception e) {}
+			gui = new MooGUI(seq);
+			System.out.println("Done");
+		} else {
+			System.out.print("Playing...");
+			play();
+			while (sequencer.isRunning()) {}
+			System.out.println("Done");
+			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 MidiChannels of the selected synthesizer.
+	 * @return the available MidiChannels
+	 */
+	public static MidiChannel[] getChannels() {
+		return channels;
+	}
+
+	/** 
+	 * Returns the current editing position of the sequencer.
+	 * @return the tick position
+	 */
+	public static long getEditPosition() {
+		return editPosition;
+	}
+
+	/** 
+	 * Returns the GUI.
+	 * @return the GUI
+	 */
+	public static MooGUI getGUI() {
+		return gui;
+	}
+
+	/** 
+	 * Calculates the position (measures, beats, ticks) in the current sequence for the given tick position.
+	 * @return an array of integers where index 0 is measures, 1 is beats and 2 is ticks.
+	 */
+	public static int[] getPositionForTick(long ticks) {
+		/*
+		int measures, beats, ticks;
+		for (int i = 0; i < timeSignatures.length; i++) {
+			long tick = timeSignatures[i].getTick();
+			// Split the ticks in the interval into measures, beats and ticks.
+		}
+		*/
+		int[] pos = {1, 1, 1};
+		return pos;
+	}
+
+	/** 
+	 * Returns the receiver of the current sequencer.
+	 * @return the receiver
+	 */
+	public static Receiver getReceiver() {
+		return receiver;
 	}
 
 	/** 
-	 * Returns a pointer to the current sequence.
+	 * Returns the current sequence.
 	 * @return the current sequence
 	 */
-	public static MooSequence getSequence() {
+	public static Sequence getSequence() {
+		return seq;
+	}
+
+	/** 
+	 * Returns the current sequencer.
+	 * @return the current sequencer
+	 */
+	public static Sequencer getSequencer() {
+		return sequencer;
+	}
+
+	/** 
+	 * Returns the tempo of the current sequence.
+	 * @return the tick position
+	 */
+	public static int getTempo() {
+		return 120;
+		// if (tempoMsg == null) return 0;
+	}
+
+	/** 
+	 * Calculates the tick position in the current sequence for the given position (measures, beats, ticks).
+	 * @return the tick position.
+	 */
+	public static long getTicksForPosition(int measures, int beats, int ticks) {
+		long tickPos = 0;
+		/*
+		for (int i = 0; i < timeSignatures.length; i++) {
+			long tick = timeSignatures[i].getTick();
+			// Add the measures, beats and ticks in the interval.
+		}
+		*/
+		return tickPos;
+	}
+
+	/** 
+	 * Returns the tempo of the current sequence.
+	 * @return the tick position
+	 */
+	public static int[] getTimeSig() {
+		int[] ts = {4, 4};
+		return ts;
+		// if (timeSigMsg == null) return 0;
+	}
+
+	/** 
+	 * Returns true if the current sequence has been edited.
+	 * @return the tick position
+	 */
+	public static boolean isEdited() {
+		return edited;
+	}
+
+	/** 
+	 * Returns whether the given track should be drawn
+	 * @return true if the given track should be drawn
+	 */
+	public static boolean shouldBeDrawn(Track track) {
+		if (drawEmptyTracks) return true;
+		else return (!emptyTracks.contains(track));
+	}
+
+
+
+
+
+
+
+
+	/*				***
+	 **	  MUTATOR METHODS	 **
+	 ***				  */
+
+
+
+
+
+
+
+
+	/** 
+	 * Fast forwards the current sequence the given number of measures.
+	 * @param measures	the number of measures to fast forward
+	 */
+	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;
+	}
+
+	/** 
+	 * Sets the currently active MidiChannel.
+	 * @param channel	the number of the MidiChannel to activate
+	 */
+	public static void setActiveChannel(int channel) {
+		activeChannel = channels[channel];
+	}
+
+	/** 
+	 * Sets whether empty tracks should be drawn
+	 * @param state		true if empty tracks should be drawn
+	 */
+	public static void setDrawEmptyTracks(boolean state) {
+		drawEmptyTracks = state;
+	}
+
+	/** 
+	 * Sets the current sequence as edited, which implies prompts when loading a new sequence.
+	 */
+	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 current editing position of the sequencer.
+	 * @param ticks		the tick position
+	 */
+	public static void setTempo(int bpm) {
+		// tempoMsg
+	}
+
+	/** 
+	 * Sets the current editing position of the sequencer.
+	 * @param ticks		the tick position
+	 */
+	public static void setTimeSig(int bpm) {
+		// timeSigMsg
+	}
 	
+	public static void setTrackSolo(Track track, boolean on){
+		trackSolo.put(track, new Boolean(on));	
+	}
+
+	public static void setTrackMute(Track track, boolean on){
+		trackMute.put(track, new Boolean(on));	
 	}
 
+
+
+
+
+
+
+
+	/*				***
+	 **	  PLAYBACK METHODS	 **
+	 ***				  */
+
+
+
+
+
+
+
+
 	/** 
 	 * Starts playback of the current sequence.
 	 */
 	public static void play() {
-	
+		sequencer.setTickPosition(editPosition);
+		resume();
+	}
+
+	/** 
+	 * Resumes playback of the current sequence.
+	 */
+	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() {
+				while(sequencer.isRunning()) {
+					// 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)));
+						sleep (10);
+					} catch (InterruptedException e) {
+						Moosique.stop();
+					}
+				}
+				Moosique.stop();
+			}
+		};
+		player.start();
 	}
 
 	/** 
 	 * Pauses playback of the current sequence.
 	 */
 	public static void pause() {
-	
+		if (sequencer.isRunning()) {
+			sequencer.stop();
+		}
+		if (player != null) player.interrupt();
 	}
 
 	/** 
 	 * Stops playback of the current sequence.
 	 */
 	public static void stop() {
-	
+		if (sequencer.isRunning()) {
+			sequencer.stop();
+		}
+		sequencer.setTickPosition(editPosition);
+		if (player != null) player.interrupt();
+		gui.update((long)0);
 	}
 
+
+
+
+
+
+
+
+	/*				***
+	 **	  SYSTEM & IO METHODS	 **
+	 ***				  */
+
+
+
+
+
+
+
+
 	/** 
-	 * Rewinds the current sequence the given number of measures.
-	 * @param measures	the number of measures to rewind
+	 * Replaces the current sequence with a new one, holding three empty tracks.
 	 */
-	public static void rewind(int measures) {
-	
+	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);
+			filename = null;
+			emptyTracks = new ArrayList();
+			trackSolo = new HashMap();
+			trackMute = new HashMap();
+		} catch (InvalidMidiDataException e) {}
+		// Sends sequence to GUI.
+		if (gui != null) gui.setSequence(seq);
 	}
 
 	/** 
-	 * Fast forwards the current sequence the given number of measures.
-	 * @param measures	the number of measures to fast forward
+	 * Loads a MIDI sequence from the given file.
+	 * @param filename	the filename to use
 	 */
-	public static void forward(int measures) {
-	
+	public static boolean load(String file) {
+		// Loads sequence from file
+		filename = file;
+		try {
+			seq = MidiSystem.getSequence(new File(filename));
+		} catch (InvalidMidiDataException e) {
+			return false;
+		} catch (IOException e) {
+			return false;
+		}
+		edited = false;
+
+		Track[] tracks = seq.getTracks();
+		emptyTracks = new ArrayList();
+		trackMute = new HashMap();
+		trackSolo = new HashMap();
+
+		// Searches track 0 for changes in tempo and time signature.
+		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);
+				}
+			}
+		}
+		// timeSignatures = ts.toArray(timeSignatures);
+		// tempoChanges = tc.toArray(tempoChanges);
+
+		// 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();
+			if (noteOns.size() == 0) emptyTracks.add(tracks[i]);
+			
+			// Sorts the note lists by tick position.
+			Comparator c = new NoteComparator();
+			Collections.sort(noteOns, c);
+			Collections.sort(noteOffs, c);
+
+			// 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();
+				onMsg = (ShortMessage)on.getMessage();
+				iOff = noteOffs.iterator();
+				while(iOff.hasNext()) {
+					nextOff = (MidiEvent)iOff.next();
+					nextOffMsg = (ShortMessage)nextOff.getMessage();
+					if(onMsg.getChannel() == nextOffMsg.getChannel() &&
+					   onMsg.getData1() == nextOffMsg.getData1() &&
+					   c.compare(nextOff, on) > 0) {
+						off = nextOff;
+						iOff.remove();
+						break;
+					}
+					   	
+				}
+				tracks[i].remove(on);
+				if (off != null) {
+					tracks[i].add(new MooNote(on, off));
+				} else {
+					tracks[i].add(new MooNote(on, new MidiEvent((ShortMessage)on.getMessage().clone(), on.getTick() + 48)));
+				}
+				iOn.remove();
+			}
+		}
+		// Sends sequence to GUI and sequencer, then returns
+		if (gui != null) gui.setSequence(seq);
+		try {
+			sequencer.setSequence(seq);
+		} catch (InvalidMidiDataException e) {}
+		return true;
 	}
 
 	/** 
-	 * Loads the MooSequence in the given file.
-	 * @param filename	the filename to use
+	 * Prompts the user .
 	 */
-	public static void load(String filename) throws IOException {
-	
+	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 given filename
-	 * @param filename	the filename to use
+	 * Saves the current sequence to the previously given filename.
 	 */
-	public static void saveAs(String filename) throws IOException {
-		
+	public static boolean save() {
+		if (filename == null) return false;
+		else {
+			saveAs(filename);
+			return true;
+		}
 	}
 
 	/** 
-	 * Saves the current sequence to the previously given filename.
+	 * Saves the current sequence to the given filename
+	 * @param file	the filename to use
 	 */
-	public static void save() throws IOException {
-	
+	public static boolean saveAs(String file) {
+		try {
+			MidiSystem.write(seq, 1, new File(file));
+			filename = file;
+			edited = false;
+			gui.setStatus("Saved " + file);
+			return true;
+		} catch (IOException e) {
+			gui.setStatus("Failed in saving " + file);
+			return false;
+		}
 	}
 
 	/** 
-	 * Exports the current sequence to a standard MIDI file.
-	 * @param filename	the filename to use
+	 * Releases all reserved devices and exits the program.
 	 */
-	public static void exportMIDI(String filename) throws IOException {
+	public static void quit() {
+		if (gui != null) {
+			if (promptOnUnsavedChanges()) return;
+		}
+		if (sequencer.isOpen()) sequencer.close();
+		if (synthesizer.isOpen()) synthesizer.close();
+		System.exit(0);
+	}
 	
+	/** 
+	 * A Comparator for sorting lists of MidiEvents.
+	 */
+	public static class NoteComparator implements Comparator {
+		public int compare(Object o1, Object o2) {
+			return (int)(((MidiEvent)o1).getTick() - ((MidiEvent)o2).getTick());
+		}
 	}
 }