public void buildTrackAndStart() {
int[] trackList = null;
sequence.deleteTrack(track);
track = sequence.createTrack();
for (int i = 0; i < 16; i++) {
trackList = new int[16];
int key = instruments[i];
for (int j = 0; j < 16; j++) {
JCheckBox jc = (JCheckBox) checkboxList.get(j + (16 * i));
if (jc.isSelected()) {
trackList[j] = key;
} else {
trackList[j] = 0;
}
} // close inner loop
makeTracks(trackList);
track.add(makeEvent(176, 1, 127, 0, 16));
} // close outer
track.add(makeEvent(192, 9, 1, 0, 15));
try {
sequencer.setSequence(sequence);
sequencer.setLoopCount(sequencer.LOOP_CONTINUOUSLY);
sequencer.start();
sequencer.setTempoInBPM(120);
} catch (Exception e) {
e.printStackTrace();
}
} // close buildTrackAndStart method
private void autoscale() {
int stateHash = FrameManager.getStateHash();
// if(lastFrameStateHash == stateHash) return;
lastStateHash = stateHash;
final Collection<Track> trackList = IGV.getInstance().getAllTracks();
Map<String, List<Track>> autoscaleGroups = new HashMap<String, List<Track>>();
for (Track track : trackList) {
if (!track.isVisible()) continue;
String asGroup = track.getAttributeValue(AttributeManager.GROUP_AUTOSCALE);
if (asGroup != null) {
if (!autoscaleGroups.containsKey(asGroup)) {
autoscaleGroups.put(asGroup, new ArrayList<Track>());
}
autoscaleGroups.get(asGroup).add(track);
} else if (track.getAutoScale()) {
autoscaleGroup(Arrays.asList(track));
}
}
if (autoscaleGroups.size() > 0) {
for (List<Track> tracks : autoscaleGroups.values()) {
autoscaleGroup(tracks);
}
}
}
public void go() {
setUpGui();
try {
Sequencer sequencer = MidiSystem.getSequencer();
sequencer.open();
// make a sequencer and open
sequencer.addControllerEventListener(m1, new int[] {127});
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
int r = 0;
for (int i = 0; i < 300; i += 4) {
r = (int) ((Math.random() * 50) + 1);
track.add(makeEvent(144, 1, r, 100, i));
track.add(makeEvent(176, 1, 127, 0, i));
track.add(makeEvent(128, 1, r, 100, i + 2));
} // end loop
sequencer.setSequence(seq);
sequencer.start();
sequencer.setTempoInBPM(120);
} catch (Exception ex) {
ex.printStackTrace();
}
} // close method
public void makeTracks(int[] list) {
for (int i = 0; i < 16; i++) {
int key = list[i];
if (key != 0) {
track.add(makeEvent(144, 9, key, 100, i));
track.add(makeEvent(128, 9, key, 100, i + 1));
}
}
}
private void autoscaleGroup(List<Track> trackList) {
List<ReferenceFrame> frames =
FrameManager.isGeneListMode()
? FrameManager.getFrames()
: Arrays.asList(FrameManager.getDefaultFrame());
List<Range> inViewRanges = new ArrayList<Range>();
synchronized (trackList) {
for (Track track : trackList) {
if (track instanceof ScalableTrack) {
for (ReferenceFrame frame : frames) {
Range range = ((ScalableTrack) track).getInViewRange(frame);
if (range != null) {
inViewRanges.add(range);
}
}
}
}
if (inViewRanges.size() > 0) {
Range inter = computeScale(inViewRanges);
for (Track track : trackList) {
DataRange dr = track.getDataRange();
float min = Math.min(0, inter.min);
float base = Math.max(min, dr.getBaseline());
float max = inter.max;
// Pathological case where min ~= max (no data in view)
if (max - min <= (2 * Float.MIN_VALUE)) {
max = min + 1;
}
DataRange newDR = new DataRange(min, base, max, dr.isDrawBaseline());
newDR.setType(dr.getType());
track.setDataRange(newDR);
}
}
}
}
public boolean createEvent(int type, int num, long tick) {
ShortMessage message = new ShortMessage();
try {
message.setMessage(type + cc.num, num, cc.velocity);
MidiEvent event = new MidiEvent(message, tick);
track.add(event);
return true;
} catch (Exception ex) {
ex.printStackTrace();
return false;
}
}
public void actionPerformed(ActionEvent ev) {
try {
// make (and open) a sequencer, make a sequence and track
Sequencer sequencer = MidiSystem.getSequencer();
sequencer.open();
sequencer.addControllerEventListener(myPanel, new int[] {127});
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
// now make two midi events (containing a midi message)
for (int i = 0; i < 100; i += 4) {
int rNum = (int) ((Math.random() * 50) + 1);
if (rNum < 38) { // so now only do it if num <38 (75% of the time)
track.add(makeEvent(144, 1, rNum, 100, i));
track.add(makeEvent(176, 1, 127, 0, i));
track.add(makeEvent(128, 1, rNum, 100, i + 2));
}
} // end loop
// add the events to the track
// add the sequence to the sequencer, set timing, and start
sequencer.setSequence(seq);
sequencer.start();
sequencer.setTempoInBPM(220);
} catch (Exception ex) {
ex.printStackTrace();
}
} // close actionperformed
public void los() {
guiErstellen();
try {
// einen Sequencer erzeugen (und öffnen),
// eine Sequence und einen Track erzeugen
Sequencer sequencer = MidiSystem.getSequencer();
sequencer.open();
sequencer.addControllerEventListener(ml, new int[] {127});
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
// jetzt werden MidiEvents (die eine
// MidiMessage enthalten) erzeugt
int r = 0;
for (int i = 0; i < 60; i += 4) {
r = (int) ((Math.random() * 50) + 1);
track.add(eventErzeugen(144, 1, r, 100, i));
track.add(eventErzeugen(176, 1, 127, 0, i));
track.add(eventErzeugen(128, 1, r, 100, i + 2));
} // Ende der for-Schleife
// Hinzufügen der Events zum Track und der Sequence
// zum Sequencer, Setzen der Zeiten und Starten
sequencer.setSequence(seq);
sequencer.start();
sequencer.setTempoInBPM(120);
} catch (Exception ex) {
ex.printStackTrace();
}
} // Methode los schließen
