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     package chromesthesia0;
27     import java.util.Scanner;
28     import javax.swing.JOptionPane;
29     import javax.swing.SwingUtilities;
30     import painter.SPainter;
31     public class Chromesthesia {
32         //INFRASTRUCTURE FOR THE PROGRAM --- LAUNCHING A "GRAPHICS" THREAD
33         public static void main(String[] args) {
34             SwingUtilities.invokeLater(new ThreadForGUI());
35         }
36         private static class ThreadForGUI implements Runnable {
37             @Override
38             public void run() {
39                 new Chromesthesia();
40             }
41         }
42         public Chromesthesia(){
43             interpreter();
44         }
45         //FEATURED VARIABLES
46         private static SPainter miro;
47         private static Pitch[] pitches;
48         //THE INTERPRETER
49         public static void interpreter() {
50             initialization(); //miro and pitches
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(); //miro has to go
64         }
65         // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
66         private static Pitch[] establishPitches(SPainter painter) {
67             Pitch[] pitches = new Pitch[9];
68             Pitch pitchMiddleC = new Pitch("C", painter);
69             pitches[0] = pitchMiddleC;
70             Pitch pitchLowC = new Pitch("C,", painter);
71             pitches[1] = pitchLowC;
72             Pitch pitchHighC = new Pitch("c", painter);
73             pitches[2] = pitchHighC;
74             Pitch pitchMiddleD = new Pitch("D", painter);
75             pitches[3] = pitchMiddleD;
76             Pitch pitchLowD = new Pitch("D,", painter);
77             pitches[4] = pitchLowD;
78             Pitch pitchHighD = new Pitch("d", painter);
79             pitches[5] = pitchHighD;
80             Pitch pitchMiddleE = new Pitch("E", painter);
81             pitches[6] = pitchMiddleE;
82             Pitch pitchLowE = new Pitch("E,", painter);
83             pitches[7] = pitchLowE;
84             Pitch pitchHighE = new Pitch("e", painter);
85             pitches[8] = pitchHighE;
86             return pitches;
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  
103        private static void playMelody(String input, Pitch[] pitches) throws Exception {
104            Scanner scanner = new Scanner(input);
105            while (scanner.hasNext()) {
106                String token = scanner.next();
107                Pitch pitch = find(token,pitches);
108                pitch.play("1");
109            }
110        }
111        //INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
112  
113        static private void showErrorMessage(String message) {
114            miro.setVisible(false);
115            JOptionPane.showMessageDialog(null, message);
116        }
117        private static void initialization() {
118            //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
119            miro = new SPainter("Chromesthesia",500,500);
120            miro.setVisible(false);
121            miro.setBrushWidth(7);
122            //ESTABLISH THE CHROMESTHETIC PITCH CLASS OBJECTS
123            pitches = establishPitches(miro);
124            display(pitches);
125        }
126        private static String getInput() {
127            miro.setVisible(false);
128            String label = "Please enter a melody in ABC notation, or EXIT...  ";
129            String input = JOptionPane.showInputDialog(null, label);
130            miro.setVisible(true);
131            if (input == null) {
132                input = "";
133            }
134            return input;
135  
136        }
137        static private void cleanup() {
138            System.exit(0);
139        }
140    }