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 finishing 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 the first version of the program, the duration will be held 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 the three examples: 21 *A, A a B, B b C, D, E C D E c d e F, F f G, G g 22 * 23 * Google ABC music representation if you would like to know more about it. 24 */ 25 package chromesthesia2; 26 27 import java.util.Scanner; 28 import javax.swing.JOptionPane; 29 import javax.swing.SwingUtilities; 30 import painter.SPainter; 31 32 public class Chromesthesia { 33 34 //INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD 35 public static void main(String[] args) { 36 SwingUtilities.invokeLater(new ThreadForGUI()); 37 } 38 39 private static class ThreadForGUI implements Runnable { 40 @Override 41 public void run() { 42 try { 43 new Chromesthesia(); 44 } catch (Exception e) { 45 e.printStackTrace(); 46 } 47 } 48 } 49 50 public Chromesthesia() throws Exception { 51 interpreter(); 52 } 53 54 //FEATURED VARIABLES 55 56 private static SPainter miro; 57 private static Pitch[] pitches; 58 59 //THE INTERPRETER 60 61 public static void interpreter() throws Exception { 62 initialization(); // miro and pitches 63 64 String aginpuss = ""; 65 66 67 while ( true ) { 68 String input = getInput(); 69 if ( input.equalsIgnoreCase("EXIT") ) { 70 break; 71 } else if ( input.equalsIgnoreCase("AGAIN") ) { 72 playMelody(aginpuss,pitches); 73 } 74 else { 75 try { 76 playMelody(input,pitches); 77 aginpuss = input; 78 } catch (Exception ex) { 79 showErrorMessage(ex.toString()); 80 } 81 } 82 83 84 } 85 86 cleanup(); // miro has to go 87 } 88 89 //METHODS PERTAINING TO THE CHROMESTHETIC PITCHES 90 91 private static Pitch[] establishPitches(SPainter painter) { 92 Pitch[] pitches = new Pitch[21]; 93 Pitch pitchMiddleC = new Pitch("C", painter); 94 pitches[0] = pitchMiddleC; 95 Pitch pitchLowC = new Pitch("C," ,painter); 96 pitches[1] = pitchLowC; 97 Pitch pitchHighC = new Pitch("c",painter); 98 pitches[2] = pitchHighC; 99 Pitch pitchMiddleD = new Pitch("D", painter); 100 pitches[3] = pitchMiddleD; 101 Pitch pitchLowD = new Pitch("D," , painter); 102 pitches[4] = pitchLowD; 103 Pitch pitchHighD = new Pitch("d" , painter); 104 pitches[5] = pitchHighD; 105 Pitch pitchMiddleE = new Pitch("E" , painter); 106 pitches[6] = pitchMiddleE; 107 Pitch pitchLowE = new Pitch("E," , painter ); 108 pitches[7] = pitchLowE; 109 Pitch pitchHighE = new Pitch("e" ,painter); 110 pitches[8] = pitchHighE; 111 Pitch pitchMiddleF = new Pitch("F," , painter); 112 pitches[9] = pitchMiddleF; 113 Pitch pitchLowF = new Pitch("F", painter); 114 pitches[10] = pitchLowF; 115 Pitch pitchHighF = new Pitch("f" , painter); 116 pitches[11] = pitchHighF; 117 Pitch pitchLowG = new Pitch("G," , painter); 118 pitches[12] = pitchLowG; 119 Pitch pitchMiddleG = new Pitch("G" , painter); 120 pitches[13] = pitchMiddleG; 121 Pitch pitchHighG = new Pitch ("g" , painter); 122 pitches[14] = pitchHighG; 123 Pitch pitchMiddleA = new Pitch("A," , painter); 124 pitches[15] = pitchMiddleA; 125 Pitch pitchLowA = new Pitch("A" , painter); 126 pitches[16] = pitchLowA; 127 Pitch pitchHighA = new Pitch("a" , painter); 128 pitches[17] = pitchHighA; 129 Pitch pitchLowB = new Pitch("B," , painter); 130 pitches[18] = pitchLowB; 131 Pitch pitchMiddleB = new Pitch("B", painter); 132 pitches[19] = pitchMiddleB; 133 Pitch pitchHighB = new Pitch ("b" , painter); 134 pitches[20] = pitchHighB; 135 return pitches; 136 } 137 138 private static Pitch find(String token, Pitch[] pitches) throws Exception { 139 for ( int i = 0; i < pitches.length; i = i + 1 ) { 140 Pitch pitch = pitches[i]; 141 if ( pitch.abcName().equals(token) ) { 142 return pitch; 143 } 144 } 145 throw new Exception("### PITCH " + token + " NOT FOUND"); 146 } 147 148 private static void display(Pitch[] pitches) { 149 for ( int i = 0; i < pitches.length; i = i + 1 ) { 150 System.out.println(pitches[i].toString()); 151 } 152 } 153 154 private static void playMelody(String input, Pitch[] pitches) throws Exception { 155 Scanner scanner = new Scanner(input); 156 while ( scanner.hasNext() ) { 157 String token = scanner.next(); 158 String pitchName; 159 String duration = ""; 160 if ( token.indexOf(",") < 0) { 161 pitchName = token.substring(0,1); 162 duration = token.substring(1); 163 } else { 164 pitchName = token.substring(0,2); 165 duration = token.substring(2); 166 } 167 if ( duration.length() == 0 ) {duration = "1";} 168 Pitch pitch = find(pitchName,pitches); 169 pitch.play(duration); 170 } 171 } 172 173 //INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 174 175 static private void showErrorMessage(String message) { 176 miro.setVisible(false); 177 JOptionPane.showMessageDialog(null,message); 178 } 179 180 private static void initialization() { 181 //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH 182 miro = new SPainter("Chromesthesia2",500,500); 183 miro.setVisible(false); 184 miro.setBrushWidth(7); 185 //ESTABLISH THR CHROMESTHETIC PITCH CLASS OBJECTS 186 pitches = establishPitches(miro); 187 display(pitches); 188 } 189 private static String getInput() { 190 miro.setVisible(false); 191 String label = "Please enter a melody in ABC notation, AGAIN, or EXIT ... "; 192 String input = JOptionPane.showInputDialog(null,label); 193 miro.setVisible(true); 194 if ( input == null ) { input = ""; } 195 return input; 196 } 197 198 static private void cleanup() { 199 System.exit(0); 200 } 201 } 202 203 204