X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=MooKeyboard.java;h=7031c40711c1831c50802947fe01cf186066b1e2;hb=a8b0b5e27d120df964c5b6d8554a6207951b00d0;hp=8b4389ddbda97bf47f4fbc7f768cae8b386cc30a;hpb=dd6e5fe331907fbbbe9539dd880ce2ec895501d7;p=moosique.git

diff --git a/MooKeyboard.java b/MooKeyboard.java
index 8b4389d..7031c40 100644
--- a/MooKeyboard.java
+++ b/MooKeyboard.java
@@ -2,16 +2,25 @@ 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 boolean[] isOn;
+	private static int startNote;
+	private static int[] keyToNote;
+
+	/**
+	 * Sets up the synthesizer emulation.
+	 */
+	public MooKeyboard() {
+		isOn = new boolean[120];
+		keyToNote = new int[120];
+		setOctave(4);
+	}
 
 	/**
 	 * Plays the appropriate MIDI NoteOn event.
@@ -47,8 +56,10 @@ public class MooKeyboard extends KeyAdapter {
 	 * Sets the octave of the lower part of the keyboard (default = 4)
 	 * @param n	the octave to start at
 	 */
-	public void setOctave(int n) {
-		startNote = n * 12;
+	public static void setOctave(int n) {
+		if (startNote == 0 || startNote == 108) return;
+		startNote += n*12;
+		makeKeyboardMapping();
 	}
 
 	/** Maps keycodes (array indices) to MIDI note numbers using the following layout:
@@ -58,8 +69,8 @@ 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 +103,4 @@ public class MooKeyboard extends KeyAdapter {
 		keyToNote[48] = startNote + 27;
 		keyToNote[80] = startNote + 28;
 	}
-}
\ No newline at end of file
+}