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