1    /* This program interprets melodic lines given in ABC notation as a 
2     * chromesthete might. 
3     * 
4     * A Pitch class will be defined and will take center stage in the 
5     * processing. 
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 will correspond to pitch 
10    * class. 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 an 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    * Google ABC music representation if you would like to know more about it. 
24    */
25   
26   package chromesthesia1;
27   
28   import java.util.Scanner;
29   import javax.swing.JOptionPane;
30   import javax.swing.SwingUtilities;
31   import painter.SPainter;
32   
33   public class Chromesthesia {
34   
35       //INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
36   
37       public static void main(String[] args) {
38           SwingUtilities.invokeLater(new ThreadForGUI());
39       }
40   
41       private static class ThreadForGUI implements Runnable {
42           @Override
43           public void run() {
44               new Chromesthesia();
45           }
46       }
47       public Chromesthesia() {
48           interpreter();
49       }
50       //FEATURED VARIABLES
51   
52       private static SPainter miro;
53       private static Pitch[] pitches;
54   
55       // THE INTERPRETER
56   
57       public static void interpreter() {
58   
59           initialization(); // miro and pitches
60   
61           while ( true ) {
62               String input = getInput();
63               if ( input.equalsIgnoreCase("Exit") ) {
64                   break;
65               } else {
66                   try {
67                       playMelody(input,pitches);
68                   } catch (Exception ex) {
69                       showErrorMessage(ex.toString());
70                   }
71               }
72           }
73   
74           cleanup(); // miro has to go
75   
76       }
77   
78   //METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
79   
80       private static Pitch[] establishPitches(SPainter painter) {
81           Pitch[] pitches = new Pitch[21];
82           Pitch pitchMiddleC = new Pitch("C",painter);
83           pitches[0] = pitchMiddleC;
84           Pitch pitchLowC = new Pitch("C,",painter);
85           pitches[1] = pitchLowC;
86           Pitch pitchHighC = new Pitch("c",painter);
87           pitches[2] = pitchHighC;
88           Pitch pitchMiddleD = new Pitch("D",painter);
89           pitches[3] = pitchMiddleD;
90           Pitch pitchLowD = new Pitch("D,",painter);
91           pitches[4] = pitchLowD;
92           Pitch pitchHighD = new Pitch("d",painter);
93           pitches[5] = pitchHighD;
94           Pitch pitchMiddleE = new Pitch("E",painter);
95           pitches[6] = pitchMiddleE;
96           Pitch pitchLowE = new Pitch("E,",painter);
97           pitches[7] = pitchLowE;
98           Pitch pitchHighE = new Pitch("e",painter);
99           pitches[8] = pitchHighE;
100          Pitch pitchMiddleF = new Pitch("F",painter);
101          pitches[9] = pitchMiddleF;
102          Pitch pitchLowF = new Pitch("F,",painter);
103          pitches[10] = pitchLowF;
104          Pitch pitchHighF = new Pitch("f",painter);
105          pitches[11] = pitchHighF;
106          Pitch pitchMiddleG = new Pitch("G",painter);
107          pitches[12] = pitchMiddleG;
108          Pitch pitchLowG = new Pitch("G,",painter);
109          pitches[13] = pitchLowG;
110          Pitch pitchHighG = new Pitch("g",painter);
111          pitches[14] = pitchHighG;
112          Pitch pitchMiddleA = new Pitch("A",painter);
113          pitches[15] = pitchMiddleA;
114          Pitch pitchLowA = new Pitch("A,",painter);
115          pitches[16] = pitchLowA;
116          Pitch pitchHighA = new Pitch("a",painter);
117          pitches[17] = pitchHighA;
118          Pitch pitchMiddleB = new Pitch("B",painter);
119          pitches[18] = pitchMiddleB;
120          Pitch pitchLowB = new Pitch("B,",painter);
121          pitches[19] = pitchLowB;
122          Pitch pitchHighB = new Pitch("b",painter);
123          pitches[20] = pitchHighB;
124  
125          return pitches;
126      }
127  
128      private static Pitch find(String token, Pitch[] pitches) throws Exception {
129          for ( int i = 0; i < pitches.length; i = i + 1 ) {
130              Pitch pitch = pitches[i];
131              if ( pitch.abcName().equals(token) ) {
132                  return pitch;
133              }
134          }
135          throw new Exception("### PITCH " + token + " NOT FOUND");
136      }
137  
138      private static void display(Pitch[] pitches) {
139          for ( int i = 0; i < pitches.length; i = i + 1 ) {
140              System.out.println(pitches[i].toString());
141          }
142      }
143  
144      private static void playMelody(String input, Pitch[] pitches) throws Exception {
145          Scanner scanner = new Scanner(input);
146          while ( scanner.hasNext() ) {
147              String token = scanner.next();
148              Pitch pitch = find(token,pitches);
149              pitch.play("1");
150          }
151      }
152  
153      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
154      static private void showErrorMessage(String message) {
155          miro.setVisible(false);
156          JOptionPane.showMessageDialog(null, message);
157      }
158  
159      private static void initialization() {
160          //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
161          miro = new SPainter("Chromesthesia",500,500);
162          miro.setVisible(false);
163          miro.setBrushWidth(7);
164          //ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
165          pitches = establishPitches(miro);
166          display(pitches);
167      }
168  
169      private static String getInput() {
170          miro.setVisible(false);
171          String label = "Please enter a melody in ABC notation, or EXIT ...      ";
172          String input = JOptionPane.showInputDialog(null,label);
173          miro.setVisible(true);
174          if ( input == null ) { input = " "; }
175          return input;
176      }
177  
178      static private void cleanup() {
179          System.exit(0);
180      }
181  
182  }
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