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   130 
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 chromesthesia2;
28   import java.util.Scanner;
29   import javax.swing.JOptionPane;
30   import javax.swing.SwingUtilities;
31   import painter.SPainter;
32   public class Chromesthesia {
33       // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
34       public static void main(String[] args) {
35           SwingUtilities.invokeLater(new ThreadForGUI());
36       }
37       private static class ThreadForGUI implements Runnable {
38           @Override
39           public void run() {
40               new Chromesthesia();
41           }
42       }
43       public Chromesthesia() {
44           interpreter();
45       }
46       // FEATURED VARIABLES
47       private static SPainter miro;
48       private static Pitch[] pitches;
49       // THE INTERPRETER
50       public static void interpreter() {
51           initialization(); // miro and pitches
52           String input2 = "";
53   
54           while ( true ) {
55               String input = getInput();
56               if ( input.equalsIgnoreCase("EXIT") ) {
57                   break;
58               } else if ( input.equalsIgnoreCase("AGAIN")){
59                   try {
60                       playMelody(input2,pitches);
61                   } catch (Exception ex) {
62                       showErrorMessage(ex.toString());
63                   }
64               } else {
65                   try {
66                       input2 = input;
67                       playMelody(input,pitches);
68                   } catch (Exception ex) {
69                       showErrorMessage(ex.toString());
70                   }
71               }
72           }
73                   cleanup(); // miro has to go
74       }
75       // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
76       private static Pitch[] establishPitches(SPainter painter) {
77           Pitch[] pitches = new Pitch[21];
78           Pitch pitchMiddleC = new Pitch("C",painter);
79           pitches[0] = pitchMiddleC;
80           Pitch pitchLowC = new Pitch("C,",painter);
81           pitches[1] = pitchLowC;
82           Pitch pitchHighC = new Pitch("c",painter);
83           pitches[2] = pitchHighC;
84           Pitch pitchMiddleD = new Pitch("D",painter);
85           pitches[3] = pitchMiddleD;
86           Pitch pitchLowD = new Pitch("D,",painter);
87           pitches[4] = pitchLowD;
88           Pitch pitchHighD = new Pitch("d",painter);
89           pitches[5] = pitchHighD;
90           Pitch pitchMiddleE = new Pitch("E",painter);
91           pitches[6] = pitchMiddleE;
92           Pitch pitchLowE = new Pitch("E,",painter);
93           pitches[7] = pitchLowE;
94           Pitch pitchHighE = new Pitch("e",painter);
95           pitches[8] = pitchHighE;
96           Pitch pitchMiddleF = new Pitch("F",painter);
97           pitches[9] = pitchMiddleF;
98           Pitch pitchLowF = new Pitch("F,",painter);
99           pitches[10] = pitchLowF;
100          Pitch pitchHighF = new Pitch("f",painter);
101          pitches[11] = pitchHighF;
102          Pitch pitchMiddleG = new Pitch("G",painter);
103          pitches[12] = pitchMiddleG;
104          Pitch pitchLowG = new Pitch("G,",painter);
105          pitches[13] = pitchLowG;
106          Pitch pitchHighG = new Pitch("g",painter);
107          pitches[14] = pitchHighG;
108          Pitch pitchMiddleA = new Pitch("A",painter);
109          pitches[15] = pitchMiddleA;
110          Pitch pitchLowA = new Pitch("A,",painter);
111          pitches[16] = pitchLowA;
112          Pitch pitchHighA = new Pitch("a",painter);
113          pitches[17] = pitchHighA;
114          Pitch pitchMiddleB = new Pitch("B",painter);
115          pitches[18] = pitchMiddleB;
116          Pitch pitchLowB = new Pitch("B,",painter);
117          pitches[19] = pitchLowB;
118          Pitch pitchHighB = new Pitch("b",painter);
119          pitches[20] = pitchHighB;
120  
121  
122          return pitches;
123      }
124      private static Pitch find(String token, Pitch[] pitches) throws Exception {
125          for ( int i = 0; i < pitches.length; i = i + 1 ) {
126              Pitch pitch = pitches[i];
127              if ( pitch.abcName().equals(token) ) {
128                  return pitch;
129              }
130          }
131          throw new Exception("### PITCH " + token + " NOT FOUND");
132      }
133      private static void display(Pitch[] pitches) {
134          for ( int i = 0; i < pitches.length; i = i + 1 ) {
135              System.out.println(pitches[i].toString());
136          }
137      }
138      private static void playMelody(String input, Pitch[] pitches) throws Exception {
139          Scanner scanner = new Scanner(input);
140          while ( scanner.hasNext() ) {
141              String token = scanner.next();
142              String pitchName;
143              String duration = "";
144              if ( token.indexOf(",") < 0 ) {
145                  pitchName = token.substring(0,1);
146                  duration = token.substring(1);
147              } else {
148                  pitchName = token.substring(0,2);
149                  duration = token.substring(2);
150              }
151              if ( duration.length() == 0 ) { duration = "1"; }
152              Pitch pitch = find(pitchName,pitches);
153              pitch.play(duration);
154          }
155      }
156      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
157      static private void showErrorMessage(String message) {
158          miro.setVisible(false);
159          JOptionPane.showMessageDialog(null, message);
160      }
161      private static void initialization() {
162  // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
163          miro = new SPainter("Chromesthesia",500,500);
164          miro.setVisible(false);
165          miro.setBrushWidth(7);
166  // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
167          pitches = establishPitches(miro);
168          display(pitches);
169      }
170      private static String getInput() {
171          miro.setVisible(false);
172          String label = "Please enter a melody in ABC notation, or EXIT ... ";
173          String input = JOptionPane.showInputDialog(null,label);
174          miro.setVisible(true);
175          if ( input == null ) { input = ""; }
176          return input;
177      }
178      static private void cleanup() {
179          System.exit(0);
180      }
181  }