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 procesing. 
6     * 
7     * Interpreting a melody in ABC notation will amount to flashing 
8     * colored rectangles for prescribed durations, while sounding 
9     * the pitch! The color of the rectangle wil correspond to pitch class. 
10    * The duration will correspond to the duration of the note. 
11    * 
12    * For this first version of the program, the duration will be held 
13    * 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 a 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 these examples: 
21    * C, D, E, C D E c d e 
22    * 
23    */
24   package chromesthesia0;
25   
26   import javax.swing.*;
27   import painter.SPainter;
28   import java.util.Scanner;
29   import javax.swing.SwingUtilities;
30   
31   public class Chromesthesia {
32   
33       public static void main(String[] args){
34           SwingUtilities.invokeLater(new ThreadForGUI());
35       }
36       private static class ThreadForGUI implements Runnable{
37           public void run(){
38               new Chromesthesia();
39           }
40       }
41       public Chromesthesia(){
42           interpreter();
43       }
44   
45       private static SPainter miro;
46       private static Pitch[] pitches;
47   
48       public static void interpreter(){
49           intialization();
50   
51           while(true){
52               String input = getInput();
53               if (input.equalsIgnoreCase("EXIT")){
54                   break;
55               }else {
56                   try{
57                       playMelody(input,pitches);
58                   }catch (Exception ex){
59                       showErrorMessage(ex.toString());
60                   }
61               }
62           }
63           cleanup();
64       }
65       private static Pitch[] establishPitches(SPainter painter){
66           Pitch[] pitches = new Pitch[9];
67           Pitch pitchMiddleC = new Pitch("C", painter);
68           pitches[0] = pitchMiddleC;
69           Pitch pitchLowC = new Pitch("C," , painter);
70           pitches[1] = pitchLowC;
71           Pitch pitchHighC = new Pitch("c", painter);
72           pitches[2] = pitchHighC;
73           Pitch pitchMiddleD = new Pitch("D", painter);
74           pitches[3] = pitchMiddleD;
75           Pitch pitchLowD = new Pitch("D," ,painter);
76           pitches[4] = pitchLowD;
77           Pitch pitchHighD = new Pitch("d", painter);
78           pitches[5] = pitchHighD;
79           Pitch pitchMiddleE = new Pitch("E", painter);
80           pitches[6] = pitchMiddleE;
81           Pitch pitchLowE = new Pitch("E,", painter);
82           pitches[7] = pitchLowE;
83           Pitch pitchHighE = new Pitch("e", painter);
84           pitches[8] = pitchHighE;
85           return pitches;
86       }
87   
88       private static Pitch find(String token, Pitch[] pitches) throws Exception{
89           for (int i = 0; i < pitches.length; i = i + 1){
90               Pitch pitch = pitches[i];
91               if( pitch.abcName().equals(token)){
92                   return pitch;
93               }
94           }
95           throw new Exception("### PITCH " + token + "NOT FOUND");
96       }
97       private static void display(Pitch[] pitches){
98           for( int i = 0; i < pitches.length; i = i +1){
99               System.out.println(pitches[i].toString());
100          }
101      }
102      private static void playMelody(String input, Pitch[] pitches) throws Exception{
103          Scanner scanner = new Scanner(input);
104          while( scanner.hasNext()){
105              String token =  scanner.next();
106              Pitch pitch = find(token, pitches);
107              pitch.play("1");
108          }
109      }
110      static private void showErrorMessage(String message){
111          miro.setVisible(false);
112          JOptionPane.showMessageDialog(null, message);
113      }
114  
115      private static void intialization(){
116  
117          miro = new SPainter("Chromesthesia", 500, 500);
118          miro.setVisible(false);
119          miro.setBrushWidth(7);
120  
121          pitches =  establishPitches(miro);
122          display(pitches);
123      }
124  
125      private static String getInput(){
126          miro.setVisible(false);
127          String label = "Please enter a melody in ABC notation, or EXIT ...     ";
128          String input = JOptionPane.showInputDialog(null, label);
129          miro.setVisible(true);
130          if (input == null ) {input = "";}
131          return input;
132      }
133      static private void cleanup(){
134          System.exit(0);
135      }
136  }
137