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