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 duration, while sounding 
10   * the pitch! The color of the rectangle will correspond to 
11   * the pitch class. The duration will correspond to the duration 
12   * of the note. 
13   * 
14   * For this first version of the program, the duration will be held 
15   * constant at 1 beat. 
16   * 
17   * Three sorts of images will appear on the screen, 
18   * the chromesthetic output box, a text input box, 
19   * and an error message box. Simplicity of design 
20   * is rendered by permitting only one box to be on the screen 
21   * at at a time. 
22   * 
23   * ABC Represents notes in a manner consistent with these examples: 
24   * C D E C D E ,cde 
25   * 
26   * google ABC Music representation for more information 
27    */
28   
29   package chromesthesia0;
30   
31   import java.util.Scanner;
32   import javax.swing.JOptionPane;
33   import javax.swing.SwingUtilities;
34   import painter.SPainter;
35   
36   public class Chromesthesia {
37       //INFRASTRUCTURE FOR THE PRORGRAM -- LAUNCHING A "GRAPHICS" THREAD
38       public static void main(String[] args) {
39           SwingUtilities.invokeLater(new ThreadForGUI());
40       }
41       private static class ThreadForGUI implements Runnable {
42           @Override
43           public void run(){
44               new Chromesthesia();
45           }
46       }
47       public Chromesthesia(){
48           interpreter();
49       }
50       //FEATURED VARIABLES
51   
52       private static SPainter miro;
53       private static Pitch[] pitches;
54       //THE INTERPRETER
55       public static void interpreter() {
56           initialization(); //miro and pitches
57           while (true){
58               String input = getInput();
59               if (input.equalsIgnoreCase("EXIT")) {
60                   break;
61               }else{
62                   try {
63                       playMelody(input, pitches);
64                   }catch(Exception ex) {
65                       showErrorMessage(ex.toString());
66                   }
67               }
68           }
69           cleanup(); //miro has to go
70       }
71       //METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
72       private static Pitch[] establishPitches(SPainter painter) {
73           Pitch[] pitches = new Pitch[9];
74           Pitch pitchMiddleC = new Pitch("C",painter);
75           pitches[0] = pitchMiddleC;
76           Pitch pitchLowC = new Pitch("C,",painter);
77           pitches[1] = pitchLowC;
78           Pitch pitchHighC = new Pitch("c", painter);
79           pitches[2] = pitchHighC;
80           Pitch pitchMiddleD = new Pitch("D",painter);
81           pitches[3] = pitchMiddleD;
82           Pitch pitchLowD = new Pitch("D,",painter);
83           pitches[4]=pitchLowD;
84           Pitch pitchHighD = new Pitch("d", painter);
85           pitches[5] = pitchHighD;
86           Pitch pitchMiddleE = new Pitch("E", painter);
87           pitches[6]=pitchMiddleE;
88           Pitch pitchLowE = new Pitch("E,", painter);
89           pitches[7]=pitchLowE;
90           Pitch pitchHighE = new Pitch("e",painter);
91           pitches[8]=pitchHighE;
92           return pitches;
93       }
94       private static Pitch find(String token, Pitch[] pitches) throws Exception {
95           for (int i = 0; i < pitches.length; i = i + 1) {
96               Pitch pitch = pitches[i];
97               if (pitch.abcName().equals(token)) {
98                   return pitch;
99               }
100          }
101          throw new Exception("### PITCH " + token + "NOT FOUND");
102      }
103      private static void display(Pitch[] pitches){
104          for (int i = 0; i < pitches.length; i = i + 1){
105              System.out.println(pitches[i].toString());
106          }
107  
108      }
109      private static void playMelody(String input, Pitch[] pitches) throws Exception{
110          Scanner scanner = new Scanner(input);
111          while (scanner.hasNext()){
112              String token = scanner.next();
113              Pitch pitch = find(token,pitches);
114              pitch.play("1");
115          }
116      }
117      //INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
118      static private void showErrorMessage(String message){
119          miro.setVisible(false);
120          JOptionPane.showMessageDialog(null,message);
121      }
122      private static void initialization(){
123          //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
124          miro = new SPainter("Chromesthesia",500,500);
125          miro.setVisible(false);
126          miro.setBrushWidth(7);
127          //ESTABLISH THE CHROMESTITC PITCH CLASS OBJECTS
128          pitches = establishPitches(miro);
129          display(pitches);
130      }
131      private static String getInput() {
132          miro.setVisible(false);
133          String label = "please enter a melody in ABC notation, or EXIT ...       ";
134          String input = JOptionPane.showInputDialog(null,label);
135          miro.setVisible(true);
136          if(input == null){input = "";}
137          return input;
138      }
139      static private void cleanup() {
140          System.exit(0);
141      }
142  }