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 chromesthesia2;
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           String getInput = "";
52   
53           while(true){
54               String input = getInput();
55               if (input.equalsIgnoreCase("EXIT")) {
56                   break;
57               } else if (input.equalsIgnoreCase("AGAIN")) {
58                   try{
59                       playMelody(input,pitches);
60                   }catch (Exception ex){
61                       showErrorMessage(ex.toString());
62                   }
63               } else {
64                   getInput= input;
65                   try { 
66                       playMelody(getInput, pitches);
67                   }catch (Exception ex) {
68                       showErrorMessage(ex.toString());
69                   }
70               }
71           }
72           cleanup();
73       }
74       private static Pitch[] establishPitches(SPainter painter){
75           Pitch[] pitches = new Pitch[9];
76           Pitch pitchMiddleC = new Pitch("C", painter);
77           pitches[0] = pitchMiddleC;
78           Pitch pitchLowC = new Pitch("C," , painter);
79           pitches[1] = pitchLowC;
80           Pitch pitchHighC = new Pitch("c", painter);
81           pitches[2] = pitchHighC;
82           Pitch pitchMiddleD = new Pitch("D", painter);
83           pitches[3] = pitchMiddleD;
84           Pitch pitchLowD = new Pitch("D," ,painter);
85           pitches[4] = pitchLowD;
86           Pitch pitchHighD = new Pitch("d", painter);
87           pitches[5] = pitchHighD;
88           Pitch pitchMiddleE = new Pitch("E", painter);
89           pitches[6] = pitchMiddleE;
90           Pitch pitchLowE = new Pitch("E,", painter);
91           pitches[7] = pitchLowE;
92           Pitch pitchHighE = new Pitch("e", painter);
93           pitches[8] = pitchHighE;
94           return pitches;
95       }
96   
97       private static Pitch find(String token, Pitch[] pitches) throws Exception{
98           for (int i = 0; i < pitches.length; i = i + 1){
99               Pitch pitch = pitches[i];
100              if( pitch.abcName().equals(token)){
101                  return pitch;
102              }
103          }
104          throw new Exception("### PITCH " + token + "NOT FOUND");
105      }
106      private static void display(Pitch[] pitches){
107          for( int i = 0; i < pitches.length; i = i +1){
108              System.out.println(pitches[i].toString());
109          }
110      }
111      private static void playMelody(String input, Pitch[] pitches) throws Exception{
112          Scanner scanner = new Scanner(input);
113          while( scanner.hasNext()){
114              String token =  scanner.next();
115              Pitch pitch = find(token, pitches);
116              pitch.play("1");
117          }
118      }
119      static private void showErrorMessage(String message){
120          miro.setVisible(false);
121          JOptionPane.showMessageDialog(null, message);
122      }
123  
124      private static void intialization(){
125  
126          miro = new SPainter("Chromesthesia", 500, 500);
127          miro.setVisible(false);
128          miro.setBrushWidth(7);
129  
130          pitches =  establishPitches(miro);
131          display(pitches);
132      }
133  
134      private static String getInput(){
135          miro.setVisible(false);
136          String label = "Please enter a melody in ABC notation, or EXIT ...     ";
137          String input = JOptionPane.showInputDialog(null, label);
138          miro.setVisible(true);
139          if (input == null ) {input = "";}
140          return input;
141      }
142      static private void cleanup(){
143          System.exit(0);
144      }
145  }
146