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[moosique.git] / MooKeyboard.java

diff --git a/MooKeyboard.java b/MooKeyboard.java
index 8b4389ddbda97bf47f4fbc7f768cae8b386cc30a..29ffeecd6207ea2b5ac1348178478528ca4c4a65 100644 (file)
--- a/MooKeyboard.java
+++ b/MooKeyboard.java
@@ -2,29 +2,54 @@ import javax.sound.midi.*;
 import java.awt.event.*;
 
 /**
- * Functional representation of a MIDI note, which contains two MIDI events, note on and note off.
+ * A keyboard listener emulating a synthesizer.
  * 
  * @author  Einar Pehrson
  */
  
 public class MooKeyboard extends KeyAdapter {
 
-       private boolean[] isOn = new boolean[120];
-       private static int startNote = 48;
-       private static final int[] keyToNote = new int[120];
+       private static int startNote;
+       private static int[] keyToNote = new int[120];
+       private boolean[] isOn;
+       private boolean recording;
+       private MooTrackTitle title;
 
+       /**
+        * Sets up the synthesizer emulation.
+        */
+       public MooKeyboard(MooTrackTitle mtt) {
+               title = mtt;
+               isOn = new boolean[120];
+       }
+
+       static {
+               startNote = 48;
+               makeKeyboardMapping();
+       }
+       
        /**
         * Plays the appropriate MIDI NoteOn event.
         */
        public void keyPressed(KeyEvent e) {
-               try {
-                       // Retrieves the notenumber from the conversion array.
-                       int noteNumber = keyToNote[e.getKeyCode()];
-                       // If note is not already on and the key is mapped to a note, sends the NoteOn event.
-                       if (!isOn[noteNumber] && noteNumber > 0) Moosique.getActiveChannel().noteOn(noteNumber, 127);
-                       isOn[noteNumber] = true;
-               } catch (ArrayIndexOutOfBoundsException x) {
-                       return;
+               if (!e.isControlDown()) {
+                       try {
+                               // Retrieves the notenumber from the conversion array.
+                               int noteNumber = keyToNote[e.getKeyCode()];
+                               // If note is not already on and the key is mapped to a note, sends the NoteOn event.
+                               if (!isOn[noteNumber] && noteNumber > 0) {
+                                       if (recording) {
+                                               ShortMessage msg = new ShortMessage();
+                                               msg.setMessage(ShortMessage.NOTE_ON, title.getChannel(), noteNumber, 100);
+                                               Moosique.getSequencer().getReceiver().send(msg, -1);
+                                       } else {
+                                               Moosique.getActiveChannel().noteOn(noteNumber, 127);
+                                       }
+                               }
+                               isOn[noteNumber] = true;
+                       } catch (Exception x) {
+                               return;
+                       }
                }
        }
        
@@ -32,23 +57,60 @@ public class MooKeyboard extends KeyAdapter {
         * Plays the appropriate MIDI NoteOff event.
         */
        public void keyReleased(KeyEvent e) {
-               try {
-                       // Retrieves the notenumber from the conversion array.
-                       int noteNumber = keyToNote[e.getKeyCode()];
-                       // Sends the NoteOff event.
-                       Moosique.getActiveChannel().noteOff(noteNumber);
-                       isOn[noteNumber] = false;
-               } catch (ArrayIndexOutOfBoundsException x) {
-                       return;
+               if (!e.isControlDown()) {
+                       try {
+                               // Retrieves the notenumber from the conversion array.
+                               int noteNumber = keyToNote[e.getKeyCode()];
+                               // Sends the NoteOff event.
+                               if (recording) {
+                                       ShortMessage msg = new ShortMessage();
+                                       msg.setMessage(ShortMessage.NOTE_OFF, title.getChannel(), noteNumber, 0);
+                                       Moosique.getSequencer().getReceiver().send(msg, -1);
+                               } else {
+                                       Moosique.getActiveChannel().noteOff(noteNumber);
+                               }
+                               isOn[noteNumber] = false;
+                       } catch (Exception x) {
+                               return;
+                       }
                }
        }
 
        /**
-        * Sets the octave of the lower part of the keyboard (default = 4)
+        * Prepares the keyboard for recording on the current channel.
+        */
+       public void recordEnable() {
+               recording = true;
+       }
+
+       /**
+        * Disables recording and returns to keyjazz mode.
+        */
+       public void recordDisable() {
+               recording = false;
+       }
+
+       /**
+        * Sets the octave of the lower part of the keyboard (default = 4).
         * @param n     the octave to start at
         */
-       public void setOctave(int n) {
+       public static void setOctave(int n) {
                startNote = n * 12;
+               makeKeyboardMapping();
+       }
+
+       /**
+        * Increases or decreases the octave of the lower part of the keyboard (default = 4).
+        * @param increase      true for increase, false for decrease
+        */
+       public static void setRelativeOctave(boolean increase) {
+               if (increase) {
+                       if (startNote == 108) return;
+                       setOctave((startNote/12) + 1);
+               } else {
+                       if (startNote == 0) return;
+                       setOctave((startNote/12) - 1);
+               }
        }
 
        /** Maps keycodes (array indices) to MIDI note numbers using the following layout:
@@ -58,8 +120,8 @@ public class MooKeyboard extends KeyAdapter {
         *  s d   g h j   l     =>  # #   # # #   #
         * z x c v b n m , .    => c d e f g a b c d
         */
-       static {
-               keyToNote[90] = startNote;
+       private static void makeKeyboardMapping() {
+               keyToNote[KeyEvent.VK_Q] = startNote;
                keyToNote[83] = startNote + 1;
                keyToNote[88] = startNote + 2;
                keyToNote[68] = startNote + 3;
@@ -92,4 +154,4 @@ public class MooKeyboard extends KeyAdapter {
                keyToNote[48] = startNote + 27;
                keyToNote[80] = startNote + 28;
        }
-}
\ No newline at end of file
+}