X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=Moosique.java;h=c411cd6f38cf779e74dda15f66bb68a6856a77db;hb=d7666fadd2f8baca8a03cacae836f2563fe4dd5d;hp=4cf89659d86a2d572c706a14febe75aeebd85943;hpb=2f2b387add66ddc0d8f8c1e301f4718792e969b6;p=moosique.git diff --git a/Moosique.java b/Moosique.java index 4cf8965..c411cd6 100644 --- a/Moosique.java +++ b/Moosique.java @@ -1,91 +1,138 @@ import javax.sound.midi.*; +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 MooSequence seq; + protected static MooGUI gui; + protected static Sequence seq; - private static Sequencer sequencer = null; - private static Synthesizer synthesizer = null; - private static Receiver receiver = null; - private static MidiChannel[] channels; + protected static Sequencer sequencer; + protected static Synthesizer synthesizer; + protected static MidiChannel[] channels; + protected static MidiChannel activeChannel; - private static String file; - private static long position; + protected static String filename; + protected static long position; - /* + /** * Starts the application. */ public static void main (String[] args) { - seq = new MooSequence(); - gui = new MooGUI(seq); - + System.out.println("\nMoosique version 1.0\n"); // 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("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. + System.out.print("Loading MIDI sequence..."); + if (args.length == 1) { + if (!load(args[0])) clearSequence(); + } else { + // Otherwise creates a new empty one. + clearSequence(); + } + System.out.println("Done"); - channels = synthesizer.getChannels(); + // Sets up channels and GUI. + System.out.print("Creating GUI..."); + gui = new MooGUI(seq); + System.out.println("Done"); } - /* + /** * Returns a pointer to the current sequence. * @return the current sequence */ - public static MooSequence getSequence() { + public static Sequence getSequence() { return seq; } - /* + /** + * Returns a pointer to the MidiChannels of the selected synthesizer. + * @return the available MidiChannels + */ + public static MidiChannel[] getChannels() { + return channels; + } + + /** + * Returns a pointer to 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 sequence. + try { + seq = new Sequence(Sequence.PPQ, 96, 3); + } catch (InvalidMidiDataException e) {} + // Sends sequence to GUI. + if (gui != null) gui.setSequence(seq); + + } + + /** * Starts playback of the current sequence. */ public static void play() { - sequencer.setSequence(seq.getSequence()); - sequencer.setTickPosition(position); + try { + sequencer.setSequence(seq); + sequencer.setTickPosition(position); + } catch (InvalidMidiDataException e) {} 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() { @@ -93,7 +140,7 @@ public class Moosique { sequencer.setTickPosition(position); } - /* + /** * Rewinds the current sequence the given number of measures. * @param measures the number of measures to rewind */ @@ -101,7 +148,7 @@ public class Moosique { return position; } - /* + /** * Rewinds the current sequence the given number of measures. * @param measures the number of measures to rewind */ @@ -109,7 +156,7 @@ public class Moosique { position = ticks; } - /* + /** * Rewinds the current sequence the given number of measures. * @param measures the number of measures to rewind */ @@ -117,7 +164,7 @@ public class Moosique { position -= ticks; } - /* + /** * Fast forwards the current sequence the given number of measures. * @param measures the number of measures to fast forward */ @@ -125,40 +172,82 @@ public class Moosique { position += ticks; } - /* + /** * Loads the MooSequence in the given file. * @param filename the filename to use */ - public static void load(String filename) throws IOException { - file = filename; - seq = new MooSequence(MidiSystem.getSequence(new File(filename))); + 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) { + JOptionPane.showMessageDialog(null, "Error 404", "File Not Found", JOptionPane.ERROR_MESSAGE); + return false; + } + + // Sends sequence to GUI + if (gui != null) gui.setSequence(seq); + + // Searches the sequence for NoteOn events + Track[] tracks = seq.getTracks(); + MidiEvent noteOn, noteOff = null, nextEvent; + MidiMessage nextMsg; + ShortMessage shortMsg; + 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() instanceof ShortMessage) { + if (((ShortMessage)noteOn.getMessage()).getCommand() == 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)); + } + } + } + } + } + return true; } - /* + /** * Saves the current sequence to the given filename * @param filename the filename to use */ public static void saveAs(String filename) throws IOException { - MidiSystem.write(seq.getSequence(), 1, new File(filename)); - + MidiSystem.write(seq, 1, new File(filename)); } - /* + /** * Saves the current sequence to the previously given filename. */ public static void save() throws IOException { - saveAs(file); + 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); } } \ No newline at end of file