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 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 at a time. 18 * 19 * Google ABC music representation if you would like to know more about it. 20 */ 21 22 package chromesthesia2; 23 24 import java.util.Scanner; 25 import javax.swing.JOptionPane; 26 import javax.swing.SwingUtilities; 27 import painter.SPainter; 28 29 public class Chromesthesia { 30 // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD 31 32 public static void main(String[] args) { 33 SwingUtilities.invokeLater(new ThreadForGUI()); 34 } 35 36 private static class ThreadForGUI implements Runnable { 37 @Override 38 public void run() { 39 new Chromesthesia(); 40 } 41 } 42 43 public Chromesthesia() { 44 interpreter(); 45 46 } 47 48 // FEATURED VARIABLES 49 private static SPainter miro; 50 private static Pitch[] pitches; 51 52 // The INTERPRETER 53 54 public static void interpreter() { 55 initialization(); // miro and pitches 56 String again = ""; 57 while (true) { 58 String input = getInput(); 59 60 61 if (input.equalsIgnoreCase("EXIT")) { 62 break; 63 }else if (input.equalsIgnoreCase("Again")) { 64 try{ 65 playMelody(again, pitches); 66 }catch (Exception ex) { 67 showErrorMessage(ex.toString()); 68 } 69 70 } 71 else { 72 try { 73 again = input; 74 playMelody(input, pitches); 75 } catch (Exception ex) { 76 showErrorMessage(ex.toString()); 77 } 78 } 79 80 } 81 cleanup(); 82 } 83 84 // METHODS PRETAINING TO THE CHROMESTHETIC PITCHES 85 86 private static Pitch[] establishPitches(SPainter painter) { 87 Pitch[] pitches = new Pitch[21]; 88 Pitch pitchMiddleC = new Pitch("C", painter); 89 pitches[0] = pitchMiddleC; 90 Pitch pitchLowC = new Pitch("C,", painter); 91 pitches[1] = pitchLowC; 92 Pitch pitchHighC = new Pitch("c", painter); 93 pitches[2] = pitchHighC; 94 Pitch pitchMiddleD = new Pitch("D", painter); 95 pitches[3] = pitchMiddleD; 96 Pitch pitchLowD = new Pitch("D,", painter); 97 pitches[4] = pitchLowD; 98 Pitch pitchHighD = new Pitch("d", painter); 99 pitches[5] = pitchHighD; 100 Pitch pitchMiddleE = new Pitch("E", painter); 101 pitches[6] = pitchMiddleE; 102 Pitch pitchLowE = new Pitch("E,", painter); 103 pitches[7] = pitchLowE; 104 Pitch pitchHighE = new Pitch("e", painter); 105 pitches[8] = pitchHighE; 106 Pitch pitchMiddleF = new Pitch("F", painter); 107 pitches[9] = pitchMiddleF; 108 Pitch pitchLowF = new Pitch("F,", painter); 109 pitches[10] = pitchLowF; 110 Pitch pitchHighF = new Pitch("f", painter); 111 pitches[11] = pitchHighF; 112 Pitch pitchMiddleG = new Pitch("G", painter); 113 pitches[12] = pitchMiddleG; 114 Pitch pitchLowG = new Pitch("G,", painter); 115 pitches[13] = pitchLowG; 116 Pitch pitchHighG = new Pitch("g", painter); 117 pitches[14] = pitchHighG; 118 Pitch pitchMiddleA = new Pitch("A", painter); 119 pitches[15] = pitchMiddleA; 120 Pitch pitchLowA = new Pitch("A,", painter); 121 pitches[16] = pitchLowA; 122 Pitch pitchHighA = new Pitch("a", painter); 123 pitches[17] = pitchHighA; 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) { duration = "1"; } 164 Pitch pitch = find(pitchName,pitches); 165 pitch.play(duration); 166 } 167 } 168 169 // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 170 171 static private void showErrorMessage(String message) { 172 miro.setVisible(false); 173 JOptionPane.showMessageDialog(null, message); 174 } 175 176 private static void initialization() { 177 miro = new SPainter("Chromesthesia", 500, 500); 178 miro.setVisible(false); 179 miro.setBrushWidth(7); 180 pitches = establishPitches(miro); 181 display(pitches); 182 } 183 184 private static String getInput() { 185 miro.setVisible(false); 186 String label = "Please enter a melody in ABC notation, or EXIT or again... "; 187 String input = JOptionPane.showInputDialog(null, label); 188 miro.setVisible(true); 189 if (input == null) { 190 input = ""; 191 } 192 return input; 193 194 } 195 196 static private void cleanup() { 197 System.exit(0); 198 } 199 }