import javax.swing.*;
import java.io.*;
-/* UPDATES
- Killed superfluous exportMIDI method.
- Added public static void quit()
- Removed Sequence seq property.
- Changed forward(int measures) and rewind(int measures) to forward(long ticks) and rewind(long ticks).
- Added public static long getPosition()
- Added public static void setPosition(long ticks)
- Added public static void resume()
-*/
-
-/*
+/**
* Moosique - The MIDI Tracker
*
- * Main class that handles initiation, IO and sound FX.
+ * Main class that handles initiation, IO and sound.
*
- * @author Andersson, Andreen, Lanneskog, Pehrson
- * @version 1
+ * @author Einar Pehrson
*/
public class Moosique {
private static MooGUI gui;
private static Sequence seq;
-
- private static Sequencer sequencer = null;
- private static Synthesizer synthesizer = null;
+ private static Sequencer sequencer;
+ private static Synthesizer synthesizer;
private static MidiChannel[] channels;
+ private static MidiChannel activeChannel;
- private static String filename;
+ private static String filename, fileArg;
private static long position;
+ private static boolean makeGUI = true;
- /*
+ /**
* Starts the application.
*/
public static void main (String[] args) {
- System.out.println("Moosique version 1.0");
+ System.out.println("\nMoosique version 1.0\n");
+
+ // Parses command-line arguments.
+ for (int i = 0; i < args.length; 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.");
try {
sequencer = MidiSystem.getSequencer();
+ System.out.print(".");
sequencer.open();
synthesizer = MidiSystem.getSynthesizer();
+ System.out.print(".");
synthesizer.open();
sequencer.getTransmitter().setReceiver(synthesizer.getReceiver());
+ channels = synthesizer.getChannels();
+ setActiveChannel(0);
} catch (MidiUnavailableException e) {
- System.out.println("Unable to initialize MIDI devices.");
+ System.out.println("Failed, quitting.");
quit();
}
+ System.out.println("Done");
//If a filename is given as the command-line argument, attempts to load a sequence from the file.
- try {
- if (args.length == 1) {
- if (!load(args[0])) seq = new Sequence(Sequence.PPQ, 96);
- } else {
- // Otherwise creates a new empty one.
- seq = new Sequence(Sequence.PPQ, 96);
- }
- } catch (InvalidMidiDataException e) {}
+ if (fileArg != null) {
+ System.out.print("Loading MIDI sequence from " + fileArg + "...");
+ if (!load(fileArg)) clearSequence();
+ System.out.println("Done");
+ } else {
+ // Otherwise creates a new empty one.
+ clearSequence();
+ }
- // Sets up channels and GUI.
- channels = synthesizer.getChannels();
- gui = new MooGUI();
+ // If n-flag is set, plays song and then exits. Otherwise builds GUI.
+ if (makeGUI) {
+ System.out.print("Building GUI...");
+ gui = new MooGUI(seq);
+ System.out.println("Done");
+ } else {
+ System.out.print("Playing...");
+ play();
+ while (sequencer.isRunning()) {}
+ System.out.println("Done");
+ quit();
+ }
}
- /*
- * Returns a pointer to the current sequence.
+ /**
+ * Returns the current sequence.
* @return the current sequence
*/
public static Sequence getSequence() {
return seq;
}
- /*
- * Starts playback of the current sequence.
+ /**
+ * Returns the current sequencer.
+ * @return the current sequencer
*/
- public static void play() {
+ public static Sequencer getSequencer() {
+ return sequencer;
+ }
+
+ /**
+ * Returns the MidiChannels of the selected synthesizer.
+ * @return the available MidiChannels
+ */
+ public static MidiChannel[] getChannels() {
+ return channels;
+ }
+
+ /**
+ * Returns the currently active MidiChannel.
+ * @return the active MidiChannel
+ */
+ public static MidiChannel getActiveChannel() {
+ return activeChannel;
+ }
+
+ /**
+ * Sets the currently active MidiChannel.
+ * @param channel the number of the MidiChannel to activate
+ */
+ public static void setActiveChannel(int channel) {
+ activeChannel = channels[channel];
+ }
+
+ /**
+ * Replaces the current sequence with a new one, holding three empty tracks.
+ */
+ public static void clearSequence() {
+ // Creates a new sequence and sends it to the sequencer.
try {
+ seq = new Sequence(Sequence.PPQ, 96, 3);
sequencer.setSequence(seq);
} catch (InvalidMidiDataException e) {}
+ // Sends sequence to GUI.
+ if (gui != null) gui.setSequence(seq);
+ }
+
+ /**
+ * Starts playback of the current sequence.
+ */
+ public static void play() {
sequencer.setTickPosition(position);
sequencer.start();
}
- /*
+ /**
* Pauses playback of the current sequence.
*/
public static void pause() {
sequencer.stop();
}
- /*
+ /**
* Resumes playback of the current sequence.
*/
public static void resume() {
sequencer.start();
}
- /*
+ /**
* Stops playback of the current sequence.
*/
public static void stop() {
sequencer.setTickPosition(position);
}
- /*
+ /**
* Rewinds the current sequence the given number of measures.
* @param measures the number of measures to rewind
*/
return position;
}
- /*
+ /**
* Rewinds the current sequence the given number of measures.
* @param measures the number of measures to rewind
*/
position = ticks;
}
- /*
+ /**
* Rewinds the current sequence the given number of measures.
* @param measures the number of measures to rewind
*/
public static void rewind(long ticks) {
- position -= ticks;
+ setPosition(position - ticks);
}
- /*
+ /**
* 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) {
- position += ticks;
+ setPosition(position + ticks);
}
- /*
+ /**
* Loads the MooSequence in the given file.
* @param filename the filename to use
*/
} catch (InvalidMidiDataException e) {
return false;
} catch (IOException e) {
- JOptionPane.showMessageDialog(null, "File", "alert", JOptionPane.ERROR_MESSAGE);
+ JOptionPane.showMessageDialog(null, "Error 404", "File Not Found", JOptionPane.ERROR_MESSAGE);
return false;
}
- // Sends sequence to GUI
- gui.setSequence(seq);
+ // Sends sequence to GUI and sequencer
+ if (gui != null) gui.setSequence(seq);
+ try {
+ sequencer.setSequence(seq);
+ } catch (InvalidMidiDataException e) {}
// Searches the sequence for NoteOn events
Track[] tracks = seq.getTracks();
return true;
}
- /*
+ /**
* Saves the current sequence to the given filename
- * @param filename the filename to use
+ * @param file the filename to use
*/
- public static void saveAs(String filename) throws IOException {
- MidiSystem.write(seq, 1, new File(filename));
-
+ public static void saveAs(String file) {
+ try {
+ MidiSystem.write(seq, 1, new File(filename));
+ } catch (IOException e) {}
+ filename = file;
}
- /*
+ /**
* Saves the current sequence to the previously given filename.
*/
- public static void save() throws IOException {
+ public static void save() {
saveAs(filename);
}
- /*
+ /**
* Releases all reserved devices and exits the program.
*/
public static void quit() {
- if (sequencer.isOpen()) {
- try {
- sequencer.open();
- } catch (MidiUnavailableException e) {}
- }
+ if (sequencer.isOpen()) sequencer.close();
+ if (synthesizer.isOpen()) synthesizer.close();
System.exit(0);
}
}
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