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