1 /* 2 * This program interprets melodic lines given in ABC notation as a chromesthete might. 3 * 4 * A Pitch class will be defined, and will take center stage in the processing. 5 * 6 * Interpreting a melody in ABC notation will amount to flashing colored rectangles for 7 * prescribed durations, while sounding the pitch! The color of the rectangle will correspond 8 * to pitch class The duration will correspond to the duration of the note. 9 * 10 * For this third version of the program, the duration will be held constant at 1 beat. 11 * 12 * Three sorts of images will appear on the screen, the chromesthetic output box, a text input 13 * box, and an error message box. Simplicity of design is rendered by permitting only one box 14 * to be on the screen at a time. 15 * 16 * ABC represents notes in a manner consistent with these examples: 17 * C, D, E, C D E c d e 18 * 19 * Google ABC music representation if you would like to know more about it. 20 */ 21 22 package chromesthesia2; 23 24 import painter.SPainter; 25 import javax.swing.JOptionPane; 26 import javax.swing.SwingUtilities; 27 import java.util.Scanner; 28 29 public class Chromesthesia { 30 31 //INFRASTRUCTURE FOR THE PROGRAM - LAUNCHING A "GRAPHICS" THREAD 32 public static void main(String[] args) { 33 SwingUtilities.invokeLater(new chromesthesia2.Chromesthesia.ThreadForGUI()); 34 } 35 36 private static class ThreadForGUI implements Runnable { 37 @Override 38 public void run() { 39 new chromesthesia2.Chromesthesia(); 40 } 41 } 42 43 public Chromesthesia() { 44 interpreter(); 45 } 46 47 //FEATURED VARIABLES 48 private static SPainter miro; 49 private static Pitch[] pitches; 50 private static String playAgain; 51 52 //THE INTERPRETER 53 public static void interpreter() { 54 initialization(); //miro and pitches 55 56 while (true) { 57 String input = getInput(); 58 if (input.equalsIgnoreCase("EXIT")) { 59 break; 60 } else if (input.equalsIgnoreCase("AGAIN")) { 61 try { 62 playMelody(playAgain, pitches); 63 } 64 catch (Exception ex) { 65 showErrorMessage(ex.toString()); 66 } 67 } else { 68 playAgain = input; 69 try { 70 playMelody(input, pitches); 71 } catch (Exception ex) { 72 showErrorMessage(ex.toString()); 73 } 74 } 75 } 76 cleanup(); //miro has to go 77 } 78 79 //METHODS PERTAINING TO THE CHROMESTHETIC PITCHES 80 private static Pitch[] establishPitches(SPainter painter) { 81 Pitch[] pitches = new Pitch[21]; 82 83 Pitch pitchMiddleC = new Pitch("C", painter); 84 pitches[0] = pitchMiddleC; 85 86 Pitch pitchLowC = new Pitch("C,", painter); 87 pitches[1] = pitchLowC; 88 89 Pitch pitchHighC = new Pitch("c", painter); 90 pitches[2] = pitchHighC; 91 92 Pitch pitchMiddleD = new Pitch("D", painter); 93 pitches[3] = pitchMiddleD; 94 95 Pitch pitchLowD = new Pitch("D,", painter); 96 pitches[4] = pitchLowD; 97 98 Pitch pitchHighD = new Pitch("d", painter); 99 pitches[5] = pitchHighD; 100 101 Pitch pitchMiddleE = new Pitch("E", painter); 102 pitches[6] = pitchMiddleE; 103 104 Pitch pitchLowE = new Pitch("E,", painter); 105 pitches[7] = pitchLowE; 106 107 Pitch pitchHighE = new Pitch("e", painter); 108 pitches[8] = pitchHighE; 109 110 Pitch pitchMiddleF = new Pitch("F", painter); 111 pitches[9] = pitchMiddleF; 112 113 Pitch pitchLowF = new Pitch("F,", painter); 114 pitches[10] = pitchLowF; 115 116 Pitch pitchHighF = new Pitch("f", painter); 117 pitches[11] = pitchHighF; 118 119 Pitch pitchMiddleG = new Pitch("G", painter); 120 pitches[12] = pitchMiddleG; 121 122 Pitch pitchLowG = new Pitch("G,", painter); 123 pitches[13] = pitchLowG; 124 125 Pitch pitchHighG = new Pitch("g", painter); 126 pitches[14] = pitchHighG; 127 128 Pitch pitchMiddleA = new Pitch("A", painter); 129 pitches[15] = pitchMiddleA; 130 131 Pitch pitchLowA = new Pitch("A,", painter); 132 pitches[16] = pitchLowA; 133 134 Pitch pitchHighA = new Pitch("a", painter); 135 pitches[17] = pitchHighA; 136 137 Pitch pitchMiddleB = new Pitch("B", painter); 138 pitches[18] = pitchMiddleB; 139 140 Pitch pitchLowB = new Pitch("B,", painter); 141 pitches[19] = pitchLowB; 142 143 Pitch pitchHighB = new Pitch("b", painter); 144 pitches[20] = pitchHighB; 145 146 return pitches; 147 } 148 149 private static Pitch find(String token, Pitch[] pitches) throws Exception{ 150 for (int i = 0; i < pitches.length; i++) { 151 Pitch pitch = pitches[i]; 152 if (pitch.abcName().equals(token)) { 153 return pitch; 154 } 155 } 156 throw new Exception("### PITCH " + token + " NOT FOUND"); 157 } 158 159 private static void display(Pitch[] pitches) { 160 for (int i = 0; i < pitches.length; i++) { 161 System.out.println(pitches[i].toString()); 162 } 163 } 164 165 private static void playMelody(String input, Pitch[] pitches) throws Exception { 166 Scanner scanner = new Scanner(input); 167 while (scanner.hasNext()) { 168 String token = scanner.next(); 169 String pitchName; 170 String duration = ""; 171 if (token.indexOf(",") < 0) { 172 pitchName = token.substring(0,1); 173 duration = token.substring(1); 174 } else { 175 pitchName = token.substring(0,2); 176 duration = token.substring(2); 177 } 178 if (duration.length() == 0) { duration = "1"; } 179 Pitch pitch = find(pitchName, pitches); 180 pitch.play(duration); 181 } 182 } 183 184 //INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 185 static private void showErrorMessage(String message) { 186 miro.setVisible(false); 187 JOptionPane.showMessageDialog(null, message); 188 } 189 190 static private void initialization() { 191 //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH 192 miro = new SPainter("Chromesthesia2", 500, 500); 193 miro.setVisible(false); 194 miro.setBrushWidth(7); 195 //ESTABLISH THE CHROMESTHETIC PITCH CLASS OBJECTS 196 pitches= establishPitches(miro); 197 display(pitches); 198 } 199 200 private static String getInput() { 201 miro.setVisible(false); 202 String label = "Please enter a melody in ABC notation, play the last melody AGAIN, or EXIT ..."; 203 String input = JOptionPane.showInputDialog(null, label); 204 miro.setVisible(true); 205 if (input == null) { input = ""; } 206 return input; 207 } 208 209 static private void cleanup() { 210 System.exit(0); 211 } 212 213 }