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    * 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 aAbout it. 
24    */
25   package chromesthesia2;
26   
27   import chromesthesia1.Pitch;
28   import painter.SPainter;
29   
30   import javax.swing.*;
31   import java.util.Scanner;
32   
33   public class Chromesthesia {
34       // FEATURED VARIABLES
35       private static SPainter miro;
36       private static Pitch[] pitches;
37   
38       public Chromesthesia() {
39           interpreter();
40       }
41   
42       // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
43       public static void main(String[] args) {
44           SwingUtilities.invokeLater(new ThreadForGUI());
45       }
46   
47       // THE INTERPRETER
48       public static void interpreter() {
49           initialization(); //micro and pitches.
50           String previousInput = "";
51           String currentInput = "";
52           while (true) {
53               String input = getInput();
54               if (input.equalsIgnoreCase("EXIT")) {
55                   break;
56               } else if (input.equalsIgnoreCase("AGAIN")) {
57                   previousInput = currentInput;
58                   try {
59                       playMelody(currentInput, pitches);
60                   } catch (Exception ex) {
61                       showErrorMessage(ex.toString());
62                   }
63               } else {
64                   previousInput = currentInput;
65                   currentInput = input;
66                   try {
67                       playMelody(currentInput, pitches);
68                   } catch (Exception ex) {
69                       showErrorMessage(ex.toString());
70                   }
71               }
72           }
73           cleanup(); //micro has to go
74   
75       }
76   
77       // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
78       private static Pitch[] establishPitches(SPainter painter) {
79           int asMuchPitchesAsWeNeed = 21;
80           Pitch[] pitches = new Pitch[asMuchPitchesAsWeNeed];
81   
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   
89           Pitch pitchMiddleD = new Pitch("D", painter);
90           pitches[3] = pitchMiddleD;
91           Pitch pitchLowD = new Pitch("D,", painter);
92           pitches[4] = pitchLowD;
93           Pitch pitchHighD = new Pitch("d", painter);
94           pitches[5] = pitchHighD;
95   
96           Pitch pitchMiddleE = new Pitch("E", painter);
97           pitches[6] = pitchMiddleE;
98           Pitch pitchLowE = new Pitch("E,", painter);
99           pitches[7] = pitchLowE;
100          Pitch pitchHighE = new Pitch("e", painter);
101          pitches[8] = pitchHighE;
102  
103          Pitch pitchMiddleF = new Pitch("F", painter);
104          pitches[9] = pitchMiddleF;
105          Pitch pitchLowF = new Pitch("F,", painter);
106          pitches[10] = pitchLowF;
107          Pitch pitchHighF = new Pitch("f", painter);
108          pitches[11] = pitchHighF;
109  
110          Pitch pitchMiddleG = new Pitch("G", painter);
111          pitches[12] = pitchMiddleG;
112          Pitch pitchLowG = new Pitch("G,", painter);
113          pitches[13] = pitchLowG;
114          Pitch pitchHighG = new Pitch("g", painter);
115          pitches[14] = pitchHighG;
116  
117          Pitch pitchMiddleA = new Pitch("A", painter);
118          pitches[15] = pitchMiddleA;
119          Pitch pitchLowA = new Pitch("A,", painter);
120          pitches[16] = pitchLowA;
121          Pitch pitchHighA = new Pitch("a", painter);
122          pitches[17] = pitchHighA;
123  
124          Pitch pitchMiddleB = new Pitch("B", painter);
125          pitches[18] = pitchMiddleB;
126          Pitch pitchLowB = new Pitch("B,", painter);
127          pitches[19] = pitchLowB;
128          Pitch pitchHighB = new Pitch("b", painter);
129          pitches[20] = pitchHighB;
130  
131          return pitches;
132      }
133  
134      private static Pitch find(String token, Pitch[] pitches) throws Exception {
135          for (int i = 0; i < pitches.length; i = i + 1) {
136              Pitch pitch = pitches[i];
137              if (pitch.abcName().equals(token)) {
138                  return pitch;
139              }
140          }
141          throw new Exception("### PITCH " + token + " NOT FOUND");
142      }
143  
144      private static void display(Pitch[] pitches) {
145          for (int i = 0; i < pitches.length; i = i + 1) {
146              System.out.println(pitches[i].toString());
147          }
148      }
149  
150      private static void playMelody(String input, Pitch[] pitches) throws Exception {
151          Scanner scanner = new Scanner(input);
152          while (scanner.hasNext()) {
153              String token = scanner.next();
154              String pitchName;
155              String duration = "";
156              if (token.indexOf(",") < 0) {
157                  pitchName = token.substring(0, 1);
158                  duration = token.substring(1);
159              } else {
160                  pitchName = token.substring(0, 2);
161                  duration = token.substring(2);
162              }
163              if (duration.length() == 0) {
164                  duration = "1";
165              }
166              Pitch pitch = find(pitchName, pitches);
167              pitch.play(duration);
168          }
169      }
170  
171      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
172      static private void showErrorMessage(String message) {
173          miro.setVisible(false);
174          JOptionPane.showMessageDialog(null, message);
175      }
176  
177      private static void initialization() {
178          // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
179          miro = new SPainter("Chromesthesia", 500, 500);
180          miro.setVisible(false);
181          miro.setBrushWidth(7);
182          // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
183          pitches = establishPitches(miro);
184          display(pitches);
185      }
186  
187      private static String getInput() {
188          miro.setVisible(false);
189          String label = "Please enter a melody in ABC notation, or EXIT ... ";
190          String input = JOptionPane.showInputDialog(null, label);
191          miro.setVisible(true);
192          if (input == null) {
193              input = "";
194          }
195          return input;
196      }
197  
198      static private void cleanup() {
199          System.exit(0);
200      }
201  
202      private static class ThreadForGUI implements Runnable {
203          @Override
204          public void run() {
205              new Chromesthesia();
206          }
207      }
208  }