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 the examples: 
22   * C, D, E, C D E c d e 
23   * 
24   * 
25    */
26   package chromesthesia0;
27   
28   import java.util.Scanner;
29   import javax.swing.JOptionPane;
30   import javax.swing.SwingUtilities;
31   import painter.SPainter;
32   
33   public class Chromesthesia {
34   
35       // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
36   
37       public static void main(String[] args) {
38           SwingUtilities.invokeLater(new ThreadForGUI());
39       }
40   
41       private static class ThreadForGUI implements Runnable {
42           @Override
43           public void run() {
44               new Chromesthesia();
45           }
46       }
47   
48       public Chromesthesia() {
49           interpreter();
50       }
51   
52       // FEATURED VARIABLES
53   
54       private static SPainter miro;
55       private static Pitch[] pitches;
56   
57       // THE INTERPRETER
58   
59       public static void interpreter() {
60   
61           initialization(); // miro and pitches
62   
63           while ( true ) {
64               String input = getInput();
65               if ( input.equalsIgnoreCase("EXIT") ) {
66                   break;
67               } else {
68                   try {
69                       playMelody(input,pitches);
70                   } catch (Exception ex) {
71                       showErrorMessage(ex.toString());
72                   }
73               }
74           }
75   
76           cleanup(); // miro has to go
77       }
78   
79       // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
80   
81       private static Pitch[] establishPitches(SPainter painter) {
82           Pitch[] pitches = new Pitch[9];
83           Pitch pitchMiddleC = new Pitch("C",painter);
84           pitches[0] = pitchMiddleC;
85   
86           Pitch pitchLowC = new Pitch("C,",painter);
87           pitches[1] = pitchLowC;
88   
89           Pitch pitchHighC = new Pitch("c",painter);
90           pitches[2] = pitchHighC;
91   
92           Pitch pitchMiddleD = new Pitch("D",painter);
93           pitches[3] = pitchMiddleD;
94   
95           Pitch pitchLowD = new Pitch("D,",painter);
96           pitches[4] = pitchLowD;
97   
98           Pitch pitchHighD = new Pitch("d",painter);
99           pitches[5] = pitchHighD;
100  
101          Pitch pitchMiddleE = new Pitch("E",painter);
102          pitches[6] = pitchMiddleE;
103  
104          Pitch pitchLowE = new Pitch("E,",painter);
105          pitches[7] = pitchLowE;
106  
107          Pitch pitchHighE = new Pitch("e",painter);
108          pitches[8] = pitchHighE;
109          return pitches;
110      }
111  
112      private static Pitch find(String token, Pitch[] pitches) throws Exception {
113          for ( int i = 0; i < pitches.length; i = i + 1) {
114              Pitch pitch = pitches[i];
115              if ( pitch.abcName().equals(token)) {
116                  return pitch;
117              }
118          }
119          throw new Exception("### PITCH " + token + "NOT FOUND");
120      }
121  
122      private static void display(Pitch[] pitches) {
123          for (int i = 0; i < pitches.length; i = i + 1) {
124              System.out.println(pitches[i].toString());
125          }
126      }
127  
128      private static void playMelody(String input, Pitch[] pitches) throws Exception {
129          Scanner scanner = new Scanner(input);
130          while (scanner.hasNext()) {
131              String token = scanner.next();
132              Pitch pitch = find(token,pitches);
133              pitch.play("1");
134          }
135      }
136  
137      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
138  
139      static private void showErrorMessage(String message) {
140          miro.setVisible(false);
141          JOptionPane.showMessageDialog(null, message);
142      }
143  
144      private static void initialization() {
145          // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
146          miro = new SPainter("Chromesthesia",500,500);
147          miro.setVisible(false);
148          miro.setBrushWidth(7);
149          // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
150          pitches = establishPitches(miro);
151          display(pitches);
152      }
153  
154      private static String getInput() {
155          miro.setVisible(false);
156          String label = "Please enter a melody in ABC notation, or EXIT ...      ";
157          String input = JOptionPane.showInputDialog(null, label);
158          miro.setVisible(true);
159          if (input == null) { input = ""; }
160          return input;
161      }
162  
163      static private void cleanup() {
164          System.exit(0);
165      }
166  }
167