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 chromesthesia1; 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 57 while (true) { 58 String input = getInput(); 59 60 if (input.equalsIgnoreCase("EXIT")) { 61 break; 62 } else { 63 try { 64 playMelody(input, pitches); 65 } catch (Exception ex) { 66 showErrorMessage(ex.toString()); 67 } 68 } 69 70 } 71 cleanup(); 72 } 73 74 // METHODS PRETAINING TO THE CHROMESTHETIC PITCHES 75 76 private static Pitch[] establishPitches(SPainter painter) { 77 Pitch[] pitches = new Pitch[21]; 78 Pitch pitchMiddleC = new Pitch("C", painter); 79 pitches[0] = pitchMiddleC; 80 Pitch pitchLowC = new Pitch("C,", painter); 81 pitches[1] = pitchLowC; 82 Pitch pitchHighC = new Pitch("c", painter); 83 pitches[2] = pitchHighC; 84 Pitch pitchMiddleD = new Pitch("D", painter); 85 pitches[3] = pitchMiddleD; 86 Pitch pitchLowD = new Pitch("D,", painter); 87 pitches[4] = pitchLowD; 88 Pitch pitchHighD = new Pitch("d", painter); 89 pitches[5] = pitchHighD; 90 Pitch pitchMiddleE = new Pitch("E", painter); 91 pitches[6] = pitchMiddleE; 92 Pitch pitchLowE = new Pitch("E,", painter); 93 pitches[7] = pitchLowE; 94 Pitch pitchHighE = new Pitch("e", painter); 95 pitches[8] = pitchHighE; 96 Pitch pitchMiddleF = new Pitch("F", painter); 97 pitches[9] = pitchMiddleF; 98 Pitch pitchLowF = new Pitch("F,", painter); 99 pitches[10] = pitchLowF; 100 Pitch pitchHighF = new Pitch("f", painter); 101 pitches[11] = pitchHighF; 102 Pitch pitchMiddleG = new Pitch("G", painter); 103 pitches[12] = pitchMiddleG; 104 Pitch pitchLowG = new Pitch("G,", painter); 105 pitches[13] = pitchLowG; 106 Pitch pitchHighG = new Pitch("g", painter); 107 pitches[14] = pitchHighG; 108 Pitch pitchMiddleA = new Pitch("A", painter); 109 pitches[15] = pitchMiddleA; 110 Pitch pitchLowA = new Pitch("A,", painter); 111 pitches[16] = pitchLowA; 112 Pitch pitchHighA = new Pitch("a", painter); 113 pitches[17] = pitchHighA; 114 Pitch pitchMiddleB = new Pitch("B", painter); 115 pitches[18] = pitchMiddleB; 116 Pitch pitchLowB = new Pitch("B,", painter); 117 pitches[19] = pitchLowB; 118 Pitch pitchHighB = new Pitch("b", painter); 119 pitches[20] = pitchHighB; 120 121 return pitches; 122 } 123 124 private static Pitch find(String token, Pitch[] pitches) throws Exception { 125 for (int i = 0; i < pitches.length; i = i + 1) { 126 Pitch pitch = pitches[i]; 127 if (pitch.abcName().equals(token)) { 128 return pitch; 129 } 130 } 131 throw new Exception("### PITCH " + token + " NOT FOUND"); 132 } 133 134 private static void display(Pitch[] pitches) { 135 for (int i = 0; i < pitches.length; i = i + 1) { 136 System.out.println(pitches[i].toString()); 137 } 138 } 139 140 private static void playMelody(String input, Pitch[] pitches) throws Exception { 141 Scanner scanner = new Scanner(input); 142 while (scanner.hasNext()) { 143 144 String token = scanner.next(); 145 Pitch pitch = find(token, pitches); 146 pitch.play("1"); 147 } 148 } 149 150 // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 151 152 static private void showErrorMessage(String message) { 153 miro.setVisible(false); 154 JOptionPane.showMessageDialog(null, message); 155 } 156 157 private static void initialization() { 158 miro = new SPainter("Chromesthesia", 500, 500); 159 miro.setVisible(false); 160 miro.setBrushWidth(7); 161 pitches = establishPitches(miro); 162 display(pitches); 163 } 164 165 private static String getInput() { 166 miro.setVisible(false); 167 String label = "Please enter a melody in ABC notation, or EXIT ... "; 168 String input = JOptionPane.showInputDialog(null, label); 169 miro.setVisible(true); 170 if (input == null) { 171 input = ""; 172 } 173 return input; 174 175 } 176 177 static private void cleanup() { 178 System.exit(0); 179 } 180 }