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 finishing 
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 the first version of the program, the duration will be held constant at 1 beat. 
14    * 
15    * Three  sorts of images will appear on the screen, the chromesthetic 
16    * output box, a text input box, and an error message box. Simplicity 
17    * of design is rendered by permitting only one box to be on the screen 
18    * at a time. 
19    * 
20    * ABC represents notes in a manner consistent with the three examples: 
21    * C, D, E C D E c d e 
22    * 
23    * Google ABC music representation if you would like to know more about it. 
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       public static void main(String[] args) {
36           SwingUtilities.invokeLater(new ThreadForGUI());
37       }
38   
39       private static class ThreadForGUI implements Runnable {
40           @Override
41           public void run() {
42               new Chromesthesia();
43           }
44       }
45   
46       public Chromesthesia() {
47           interpreter();
48       }
49   
50       //FEATURED VARIABLES
51   
52       private static SPainter miro;
53       private static Pitch[] pitches;
54   
55       //THE INTERPRETER
56   
57       public static void interpreter() {
58           initialization(); // miro and pitches
59   
60           while ( true ) {
61               String input = getInput();
62               if ( input.equalsIgnoreCase("EXIT") ) {
63                   break;
64               } else {
65                   try {
66                       playMelody(input,pitches);
67                   } catch (Exception ex) {
68                       showErrorMessage(ex.toString());
69                   }
70               }
71           }
72   
73           cleanup(); // miro has to go
74       }
75   
76       //METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
77   
78       private static Pitch[] establishPitches(SPainter painter) {
79           Pitch[] pitches = new Pitch[9];
80           Pitch pitchMiddleC = new Pitch("C", painter);
81           pitches[0] = pitchMiddleC;
82           Pitch pitchLowC = new Pitch("C," ,painter);
83           pitches[1] = pitchLowC;
84           Pitch pitchHighC = new Pitch("c",painter);
85           pitches[2] = pitchHighC;
86           Pitch pitchMiddleD = new Pitch("D", painter);
87           pitches[3] = pitchMiddleD;
88           Pitch pitchLowD = new Pitch("D," , painter);
89           pitches[4] = pitchLowD;
90           Pitch pitchHighD = new Pitch("d" , painter);
91           pitches[5] = pitchHighD;
92           Pitch pitchMiddleE = new Pitch("E" , painter);
93           pitches[6] = pitchMiddleE;
94           Pitch pitchLowE = new Pitch("E," , painter );
95           pitches[7] = pitchLowE;
96           Pitch pitchHighE = new Pitch("e" ,painter);
97           pitches[8] = pitchHighE;
98           return pitches;
99       }
100  
101      private static Pitch find(String token, Pitch[] pitches) throws Exception {
102          for ( int i = 0; i < pitches.length; i = i + 1 ) {
103              Pitch pitch = pitches[i];
104              if ( pitch.abcName().equals(token) ) {
105                  return pitch;
106              }
107          }
108          throw new Exception("### PITCH " + token + " NOT FOUND");
109      }
110  
111      private static void display(Pitch[] pitches) {
112          for ( int i = 0; i  < pitches.length; i = i + 1 ) {
113              System.out.println(pitches[i].toString());
114          }
115      }
116  
117      private static void playMelody(String input, Pitch[] pitches) throws Exception {
118          Scanner scanner = new Scanner(input);
119          while ( scanner.hasNext() ) {
120              String token = scanner.next();
121              Pitch pitch = find(token,pitches);
122              pitch.play("1");
123          }
124      }
125  
126      //INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
127  
128      static private void showErrorMessage(String message) {
129          miro.setVisible(false);
130          JOptionPane.showMessageDialog(null,message);
131      }
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 THR CHROMESTHETIC 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  
151      static private void cleanup() {
152          System.exit(0);
153      }
154  }
155  
156