1    
2    
3    /* 
4     *This program interprets melodic lines given in ABC notation as a chromesthete might. 
5     * 
6     * A pitch will be defined, and will take center stage in 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 the 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   
30   import painter.SPainter;
31   import java.util.Scanner;
32   import javax.swing.SwingUtilities;
33   import javax.swing.JOptionPane;
34   
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   
47               new Chromesthesia();
48           }
49       }
50   
51       public Chromesthesia() {
52           interpreter();
53       }
54   
55       //FEATURED VARIABLES
56   
57       private static SPainter miro;
58       private static Pitch[] pitches;
59   
60       //THE INTERPRETER
61   
62       public static void interpreter() {
63           initialization(); //miro and pitches
64   
65           while (true) {
66               String input = getInput();
67   
68               if (input.equalsIgnoreCase("EXIT")) {
69                   break;
70   
71               } else {
72                   try {
73                       playMelody(input, pitches);
74                   } catch (Exception ex) {
75                       showErrorMessage(ex.toString());
76                   }
77               }
78           }
79           cleanup(); // miro has to go
80       }
81   
82   // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
83   
84       private static Pitch[] establishPitches(SPainter painter) {
85           Pitch[] pitches = new Pitch[9];
86           Pitch pitchMiddleC = new Pitch("C",painter);
87           pitches[0] = pitchMiddleC;
88   
89           Pitch pitchLowC = new Pitch("C,",painter);
90           pitches[1] = pitchLowC;
91           Pitch pitchHighC = new Pitch("c",painter);
92           pitches[2] = pitchHighC;
93   
94           Pitch pitchMiddleD = new Pitch("D",painter);
95           pitches[3] = pitchMiddleD;
96           Pitch pitchLowD = new Pitch("D,",painter);
97           pitches[4] = pitchLowD;
98   
99           Pitch pitchHighD = new Pitch("d",painter);
100          pitches[5] = pitchHighD;
101          Pitch pitchMiddleE = new Pitch("E",painter);
102          pitches[6] = pitchMiddleE;
103  
104          Pitch pitchLowE = new Pitch("E,",painter);
105          pitches[7] = pitchLowE;
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  
115              Pitch pitch = pitches[i];
116              if ( pitch.abcName().equals(token) ) {
117  
118                  return pitch;
119              }
120  
121          }
122  
123          throw new Exception("### PITCH " + token + " NOT FOUND");
124      }
125  
126      private static void display(Pitch[] pitches) {
127          for ( int i = 0; i < pitches.length; i = i + 1 ) {
128  
129              System.out.println(pitches[i].toString());
130          }
131  
132      }
133  
134      private static void playMelody(String input, Pitch[] pitches) throws Exception {
135          Scanner scanner = new Scanner(input);
136          while ( scanner.hasNext() ) {
137  
138              String token = scanner.next();
139              Pitch pitch = find(token,pitches);
140              pitch.play("1");
141  
142          }
143  
144      }
145  
146      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
147  
148      static private void showErrorMessage(String message) {
149          miro.setVisible(false);
150          JOptionPane.showMessageDialog(null, message);
151  
152      }
153  
154      private static void initialization() {
155          // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
156          miro = new SPainter("Chromesthesia",500,500);
157          miro.setVisible(false);
158          miro.setBrushWidth(7);
159          // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
160          pitches = establishPitches(miro);
161          display(pitches);
162  
163      }
164  
165      private static String getInput() {
166          miro.setVisible(false);
167          String label = "Please enter a melody in ABC notation, or EXIT ...     ";
168          String input = JOptionPane.showInputDialog(null,label);
169          miro.setVisible(true);
170          if ( input == null ) { input = ""; }
171          return input;
172  
173      }
174  
175      static private void cleanup() {
176          System.exit(0);
177  
178      }
179  
180  }