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   130 
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, the chromesthetic 
18   * output box, a text input box, and an error message box. Simplicity 
19   * of design is rendered by permitting only one box to be on the screen 
20   * at a time. 
21   * 
22   * ABC represents notes in a manner consistent with these examples: 
23   * C, D, E, C D E c d e 
24   * 
25   * Google ABC music representation if you would like to know more about it. 
26   */
27   package chromesthesia1;
28   
29   import painter.SPainter;
30   import javax.swing.*;
31   import java.util.Scanner;
32   
33   public class Chromesthesia {
34       // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
35       public static void main(String[] args) {
36           SwingUtilities.invokeLater(new ThreadForGUI());
37       }
38       private static class ThreadForGUI implements Runnable {
39           @Override
40           public void run() {
41               new Chromesthesia();
42           }
43       }
44       public Chromesthesia() {
45           interpreter();
46       }
47       // FEATURED VARIABLES
48       private static SPainter miro;
49       private static Pitch[] pitches;
50       // THE INTERPRETER
51       public static void interpreter() {
52           initialization(); // miro and pitches
53           while ( true ) {
54               String input = getInput();
55               if ( input.equalsIgnoreCase("EXIT") ) {
56                   break;
57               } else {
58                   try {
59                       playMelody(input,pitches);
60                   } catch (Exception ex) {
61                       showErrorMessage(ex.toString());
62                   }
63               }
64           }
65           cleanup(); // miro has to go
66       }
67       // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
68       private static Pitch[] establishPitches(SPainter painter) {
69           Pitch[] pitches = new Pitch[21];
70           Pitch pitchMiddleC = new Pitch("C",painter);
71           pitches[0] = pitchMiddleC;
72           Pitch pitchLowC = new Pitch("C,",painter);
73           pitches[1] = pitchLowC;
74           Pitch pitchHighC = new Pitch("c",painter);
75           pitches[2] = pitchHighC;
76           Pitch pitchMiddleD = new Pitch("D",painter);
77           pitches[3] = pitchMiddleD;
78           Pitch pitchLowD = new Pitch("D,",painter);
79           pitches[4] = pitchLowD;
80           Pitch pitchHighD = new Pitch("d",painter);
81           pitches[5] = pitchHighD;
82           Pitch pitchMiddleE = new Pitch("E",painter);
83           pitches[6] = pitchMiddleE;
84           Pitch pitchLowE = new Pitch("E,",painter);
85           pitches[7] = pitchLowE;
86           Pitch pitchHighE = new Pitch("e",painter);
87           pitches[8] = pitchHighE;
88           Pitch pitchMiddleF = new Pitch("F",painter);
89           pitches[9] = pitchMiddleF;
90           Pitch pitchLowF = new Pitch("F,",painter);
91           pitches[10] = pitchLowF;
92           Pitch pitchHighF = new Pitch("f",painter);
93           pitches[11] = pitchHighF;
94           Pitch pitchMiddleG = new Pitch("G",painter);
95           pitches[12] = pitchMiddleG;
96           Pitch pitchLowG = new Pitch("G,",painter);
97           pitches[13] = pitchLowG;
98           Pitch pitchHighG = new Pitch("g",painter);
99           pitches[14] = pitchHighG;
100          Pitch pitchMiddleA = new Pitch("A",painter);
101          pitches[15] = pitchMiddleA;
102          Pitch pitchLowA = new Pitch("A,",painter);
103          pitches[16] = pitchLowA;
104          Pitch pitchHighA = new Pitch("a",painter);
105          pitches[17] = pitchHighA;
106          Pitch pitchMiddleB = new Pitch("B",painter);
107          pitches[18] = pitchMiddleB;
108          Pitch pitchLowB = new Pitch("B,",painter);
109          pitches[19] = pitchLowB;
110          Pitch pitchHighB = new Pitch("b",painter);
111          pitches[20] = pitchHighB;
112          return pitches;
113      }
114      private static Pitch find(String token, Pitch[] pitches) throws Exception {
115          for ( int i = 0; i < pitches.length; i = i + 1 ) {
116              Pitch pitch = pitches[i];
117              if ( pitch.abcName().equals(token) ) {
118                  return pitch;
119              }
120          }
121          throw new Exception("### PITCH " + token + " NOT FOUND");
122      }
123      private static void display(Pitch[] pitches) {
124          for ( int i = 0; i < pitches.length; i = i + 1 ) {
125              System.out.println(pitches[i].toString());
126          }
127      }
128      private static void playMelody(String input, Pitch[] pitches) throws Exception {
129          Scanner scanner = new Scanner(input);
130          while ( scanner.hasNext() ) {
131              String token = scanner.next();
132              Pitch pitch = find(token,pitches);
133              pitch.play("1");
134          }
135      }
136      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
137      static private void showErrorMessage(String message) {
138          miro.setVisible(false);
139          JOptionPane.showMessageDialog(null, message);
140      }
141      private static void initialization() {
142  // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
143          miro = new SPainter("Chromesthesia",500,500);
144          miro.setVisible(false);
145          miro.setBrushWidth(7);
146  // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
147          pitches = establishPitches(miro);
148          display(pitches);
149      }
150      private static String getInput() {
151          miro.setVisible(false);
152          String label = "Please enter a melody in ABC notation, or EXIT ... ";
153          String input = JOptionPane.showInputDialog(null,label);
154          miro.setVisible(true);
155          if ( input == null ) { input = ""; }
156          return input;
157      }
158      static private void cleanup() {
159          System.exit(0);
160      }
161  }