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   package chromesthesia0;
28   
29   import javax.swing.SwingUtilities;
30   import java.util.Scanner;
31   import javax.swing.JOptionPane;
32   import painter.SPainter;
33   
34   public class Chromesthesia {
35   
36       // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
37   
38       public static void  main(String[] args) {
39           SwingUtilities.invokeLater(new ThreadForGUI());
40       }
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 pitches
64   
65           while (true) {
66               String input = getInput();
67               if (input.equalsIgnoreCase("EXIT")) {
68                   break;
69               } else {
70                   try {
71                       playMelody(input,pitches);
72                   } catch (Exception ex) {
73                       showErrorMessage(ex.toString());
74                   }
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  
122      private static void playMelody(String input, Pitch[] pitches) throws Exception {
123          Scanner scanner = new Scanner(input);
124          while (scanner.hasNext()) {
125              String token = scanner.next();
126              Pitch pitch = find(token,pitches);
127              pitch.play("1");
128          }
129      }
130  
131      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
132  
133      private static void showErrorMessage(String message) {
134          miro.setVisible(false);
135          JOptionPane.showMessageDialog(null, message);
136      }
137  
138      private static void initialization() {
139          // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
140          miro = new SPainter("Chromesthesia",500,500);
141          miro.setVisible(false);
142          miro.setBrushWidth(7);
143          // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
144          pitches = establishPitches(miro);
145          display(pitches);
146      }
147  
148      private static String getInput() {
149          miro.setVisible(false);
150          String label = "Please enter a melody in ABC notation, or EXIT...   ";
151          String input = JOptionPane.showInputDialog(null, label);
152          miro.setVisible(true);
153          if (input == null) {input = ""; }
154          return input;
155      }
156  
157      private static void cleanup() {
158          System.exit(0);
159      }
160  }
161