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. 12 130 13 * 14 * For this first version of the program, the duration will be held 15 * constant at 1 beat. 16 * 17 * Three sorts of images will appear on the screen, the chromesthetic 18 * output box, a text input box, and an error message box. Simplicity 19 * of design is rendered by permitting only one box to be on the screen 20 * at a time. 21 * 22 * ABC represents notes in a manner consistent with these examples: 23 * C, D, E, C D E c d e 24 * 25 * Google ABC music representation if you would like to know more about it. 26 */ 27 package chromesthesia2; 28 29 import painter.SPainter; 30 31 import javax.swing.*; 32 import java.util.ArrayList; 33 import java.util.Scanner; 34 35 public class Chromesthesia { 36 // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD 37 public static void main(String[] args) { 38 SwingUtilities.invokeLater(new ThreadForGUI()); 39 } 40 private static class ThreadForGUI implements Runnable { 41 @Override 42 public void run() { 43 new Chromesthesia(); 44 } 45 } 46 public Chromesthesia() { 47 interpreter(); 48 } 49 // FEATURED VARIABLES 50 51 private static SPainter miro; 52 private static Pitch[] pitches; 53 54 55 // THE INTERPRETER 56 public static void interpreter() { 57 int i = 0; 58 ArrayList<String> arrlist = new ArrayList<>(100); 59 initialization(); // miro and pitches 60 while ( true ) { 61 String input = getInput(); 62 63 if ( input.equalsIgnoreCase("EXIT") ) { 64 break; 65 } else if( input.equalsIgnoreCase("AGAIN")){ 66 try{ 67 playMelody(arrlist.get(i-1),pitches); 68 } catch (Exception ex) { 69 showErrorMessage(ex.toString()); 70 } 71 } else { 72 try { 73 playMelody(input,pitches); 74 arrlist.add(input); 75 i = i + 1; 76 } catch (Exception ex) { 77 showErrorMessage(ex.toString()); 78 } 79 } 80 } 81 82 cleanup(); // miro has to go 83 } 84 // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES 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 private static Pitch find(String token, Pitch[] pitches) throws Exception { 132 for ( int i = 0; i < pitches.length; i = i + 1 ) { 133 Pitch pitch = pitches[i]; 134 if ( pitch.abcName().equals(token) ) { 135 return pitch; 136 } 137 } 138 throw new Exception("### PITCH " + token + " NOT FOUND"); 139 } 140 private static void display(Pitch[] pitches) { 141 for ( int i = 0; i < pitches.length; i = i + 1 ) { 142 System.out.println(pitches[i].toString()); 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 static private void showErrorMessage(String message) { 166 miro.setVisible(false); 167 JOptionPane.showMessageDialog(null, message); 168 } 169 private static void initialization() { 170 // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH 171 miro = new SPainter("Chromesthesia",500,500); 172 miro.setVisible(false); 173 miro.setBrushWidth(7); 174 // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS 175 pitches = establishPitches(miro); 176 display(pitches); 177 } 178 private static String getInput() { 179 miro.setVisible(false); 180 String label = "Please enter a melody in ABC notation, AGAIN, or EXIT ... "; 181 String input = JOptionPane.showInputDialog(null, label); 182 miro.setVisible(true); 183 if (input == null) { 184 input = ""; 185 } 186 187 return input; 188 } 189 190 static private void cleanup() { 191 System.exit(0); 192 } 193 }