1    /* 
2     * This program interprets melodic lines given in ABC notation 
3     * as a chromesthete might. 
4     * 
5     * A Pitch class will be defined, and will take center stage in 
6     * the 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 th 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 
19    * screen 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   
25   package chromesthesia0;
26   
27   import java.util.Scanner;
28   import javax.swing.JOptionPane;
29   import javax.swing.SwingUtilities;
30   import painter.SPainter;
31   
32   public class Chromesthesia {
33   
34       //INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
35   
36       public static void main (String[] args) {
37           SwingUtilities.invokeLater(new ThreadForGUI());
38       }
39   
40       private static class ThreadForGUI implements Runnable {
41           @Override
42           public void run () {
43               new Chromesthesia();
44           }
45       }
46   
47       public Chromesthesia() {
48           interpreter();
49       }
50   
51       //FEATURED VARIABLS
52   
53       private static SPainter miro;
54       private static Pitch[] pitches;
55   
56       //THE INTERPRETER
57   
58       public static void interpreter() {
59   
60           initialization(); //MIRO AND PITCHES
61   
62           while (true) {
63               String input = getInput();
64               if (input.equalsIgnoreCase("EXIT")) {
65                   break;
66               } else {
67                   try {
68                       playMelody(input, pitches);
69                   } catch (Exception ex) {
70                       showErrorMessage(ex.toString());
71                   }
72               }
73           }
74   
75           cleanup(); //MIRO HAS TO GO
76       }
77   
78       //METHODS PERTAINING TO THE CHOMESTHETIC PITCHES
79       private static Pitch[] establishPitches(SPainter painter) {
80           Pitch[] pitches = new Pitch[9];
81   
82           Pitch pitchMiddleC = new Pitch("C", painter);
83           pitches[0] = pitchMiddleC;
84   
85           Pitch pitchLowC = new Pitch("C,", painter);
86           pitches[1] = pitchLowC;
87   
88           Pitch pitchHighC = new Pitch("c", painter);
89           pitches[2] = pitchHighC;
90   
91           Pitch pitchMiddleD = new Pitch("D", painter);
92           pitches[3] = pitchMiddleD;
93   
94           Pitch pitchLowD = new Pitch("D,", painter);
95           pitches[4] = pitchLowD;
96   
97           Pitch pitchHighD = new Pitch("d", painter);
98           pitches[5] = pitchHighD;
99   
100          Pitch pitchMiddleE = new Pitch("E", painter);
101          pitches[6] = pitchMiddleE;
102  
103          Pitch pitchLowE = new Pitch("E,", painter);
104          pitches[7] = pitchLowE;
105  
106          Pitch pitchHighE = new Pitch("e", painter);
107          pitches[8] = pitchHighE;
108  
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      static private void showErrorMessage(String message) {
139          miro.setVisible(false);
140          JOptionPane.showMessageDialog(null, message);
141      }
142  
143      private static void initialization() {
144          //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
145          miro = new SPainter ("Chromesthesia", 500, 500);
146          miro.setVisible(false);
147          miro.setBrushWidth(7);
148          //ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
149          pitches = establishPitches(miro);
150          display(pitches);
151      }
152  
153      private static String getInput() {
154          miro.setVisible(false);
155          String label = "Please enter a melody in ABC notation, or EXIT ... ";
156          String input = JOptionPane.showInputDialog(null, label);
157          miro.setVisible(true);
158          if (input == null) {input = "";}
159          return input;
160      }
161  
162      static private void cleanup() {
163          System.exit(0);
164      }
165  
166  }