1    /* 
2     * This program interprets melodic lines given in ABC notation as a 
3     * chromesthete might. 
4     * 
5     * A Pitch class will be defined, and will take center stage in the 
6     * processing. 
7     * 
8     * Interpreting a melody in ABC notation will amount to flashing 
9     * colored rectangles for prescribed durations, while sounding 
10    * the pitch! The color of the rectangle will correspond to pitch 
11    * class. The duration will correspond to the duration of the note. 
12   * 
13    * For this first version of the program, the duration will be held 
14    * constant at 1 beat. 
15    * 
16    * Three sorts of images will appear on the screen, the chromesthetic 
17    * output box, a text input box, and an error message box. Simplicity 
18    * of design is rendered by permitting only one box to be on the screen 
19    * at a time. 
20    * 
21    * ABC represents notes in a manner consistent with these examples: 
22    * C, D, E, C D E c d e 
23    * 
24    * Google ABC music representation if you would like to know more about it. 
25    */
26   
27   
28   package chromesthesia0;
29   
30   
31   import java.util.Scanner;
32   import javax.swing.JOptionPane;
33   import javax.swing.SwingUtilities;
34   import painter.SPainter;
35   
36   public class Chromesthesia {
37       //infrastructure for the program -- launching a "Graphics" thread
38   
39       public static void main(String[] args){
40           SwingUtilities.invokeLater(new ThreadForGUI());
41       }
42   
43       private static class ThreadForGUI implements Runnable{
44           @Override
45           public void run(){
46               new Chromesthesia();
47           }
48       }
49   
50       public Chromesthesia(){
51           interpreter();
52       }
53   
54       //featured variables
55   
56       private static SPainter miro;
57       private static Pitch[] pitches;
58   
59       //the interpreter
60   
61       public static void interpreter(){
62   
63           initialization(); //miro and pitchers
64   
65           while(true){
66               String input = getInput();
67   
68               if(input.equalsIgnoreCase("EXIT")){
69                   break;
70               } else {
71                   try{
72                       playMelody(input,pitches);
73                   }catch (Exception ex){
74                       showErrorMessage(ex.toString());
75                   }
76               }
77           }
78           cleanup(); //miro has to go
79   
80       }
81       //methods pertaining to the chromesthetic pitches
82   
83       private static Pitch[] establishPitches(SPainter painter){
84           Pitch[] pitches = new Pitch[9];
85           Pitch pitchMiddleC = new Pitch("C", painter);
86           pitches[0] = pitchMiddleC;
87           Pitch pitchLowC = new Pitch("C,",painter);
88           pitches[1] = pitchLowC;
89           Pitch pitchHighC = new Pitch("c",painter);
90           pitches[2] = pitchHighC;
91           Pitch pitchMiddleD = new Pitch("D",painter);
92           pitches[3] = pitchMiddleD;
93           Pitch pitchLowD = new Pitch("D,",painter);
94           pitches[4] = pitchLowD;
95           Pitch pitchHighD = new Pitch("d",painter);
96           pitches[5] = pitchHighD;
97           Pitch pitchMiddleE = new Pitch("E",painter);
98           pitches[6] = pitchMiddleE;
99           Pitch pitchLowE = new Pitch("E,",painter);
100          pitches[7] = pitchLowE;
101          Pitch pitchHighE = new Pitch("e",painter);
102          pitches[8] = pitchHighE;
103          return pitches;
104      }
105  
106      private static Pitch find(String token, Pitch[] pitches) throws Exception{
107          for (int i =0; i < pitches.length; i=i+1){
108              Pitch pitch = pitches[i];
109              if(pitch.abcName().equals(token)){
110                  return pitch;
111              }
112          }
113          throw new Exception("### PITCH " +token+ "NOT FOUND");
114      }
115  
116      private static void display(Pitch[] pitches){
117          for(int i = 0; i< pitches.length; i = i + 1){
118              System.out.println(pitches[i].toString());
119          }
120      }
121      private static void playMelody(String input, Pitch[] pitches) throws Exception {
122          Scanner scanner = new Scanner(input);
123          while ( scanner.hasNext() ) {
124              String token = scanner.next();
125              Pitch pitch = find(token,pitches);
126              pitch.play("1");
127          } }
128      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
129      static private void showErrorMessage(String message) {
130          miro.setVisible(false);
131          JOptionPane.showMessageDialog(null, message);
132      }
133      private static void initialization() {
134          // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
135          miro = new SPainter("Chromesthesia",500,500);
136          miro.setVisible(false);
137          miro.setBrushWidth(7);
138          // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
139          pitches = establishPitches(miro);
140          display(pitches);
141      }
142      private static String getInput() {
143          miro.setVisible(false);
144          String label = "Please enter a melody in ABC notation, or EXIT ...     ";
145          String input = JOptionPane.showInputDialog(null,label);
146          miro.setVisible(true);
147          if ( input == null ) { input = ""; }
148          return input;
149      }
150      static private void cleanup() {
151          System.exit(0);
152      }
153  
154  }
155