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 14 * constant at 1 beat. 15 * 16 * Three sorts of images will appear on the screen, the chromesthetic 17 * output box, a text input nox, and an error message box. Simplicity 18 * of design is rendered by the permitting only one box to be on the screen 19 * at a time. 20 * 21 * ABC represents notes in a manner consistent with these examples: 22 * C, D, E, C D E c d e 23 * 24 * Google ABC music representation if you would like to know more about it. 25 */ 26 27 package chromesthesia2; 28 29 import painter.SPainter; 30 import javax.swing.*; 31 import java.util.Scanner; 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 String inputAgain = ""; 63 64 while(true) { 65 String input = getInput(); 66 if(input.equalsIgnoreCase("EXIT")) { 67 break; 68 } 69 else if (input.equalsIgnoreCase("AGAIN")) { 70 try { 71 playMelody(inputAgain, pitches); 72 } catch(Exception ex) { 73 showErrorMessage(ex.toString()); 74 } 75 } 76 else { 77 try { 78 inputAgain = input; 79 playMelody(input,pitches); 80 } catch(Exception ex) { 81 showErrorMessage(ex.toString()); 82 } 83 } 84 } 85 86 cleanup(); //miro has to go 87 } 88 89 // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES 90 91 private static Pitch[] establishPitches(SPainter painter) { 92 Pitch[] pitches = new Pitch[21]; 93 Pitch pitchMiddleC = new Pitch("C", painter); 94 pitches[0] = pitchMiddleC; 95 Pitch pitchLowC = new Pitch("C,", painter); 96 pitches[1] = pitchLowC; 97 Pitch pitchHighC = new Pitch("c", painter); 98 pitches[2] = pitchHighC; 99 Pitch pitchMiddleD = new Pitch("D", painter); 100 pitches[3] = pitchMiddleD; 101 Pitch pitchLowD = new Pitch("D,", painter); 102 pitches[4] = pitchLowD; 103 Pitch pitchHighD = new Pitch("d", painter); 104 pitches[5] = pitchHighD; 105 Pitch pitchMiddleE = new Pitch("E", painter); 106 pitches[6] = pitchMiddleE; 107 Pitch pitchLowE = new Pitch("E,", painter); 108 pitches[7] = pitchLowE; 109 Pitch pitchHighE = new Pitch("e", painter); 110 pitches[8] = pitchHighE; 111 Pitch pitchMiddleF = new Pitch("F", painter); 112 pitches[9] = pitchMiddleF; 113 Pitch pitchLowF = new Pitch("F,", painter); 114 pitches[10] = pitchLowF; 115 Pitch pitchHighF = new Pitch("f", painter); 116 pitches[11] = pitchHighF; 117 Pitch pitchMiddleG = new Pitch("G", painter); 118 pitches[12] = pitchMiddleG; 119 Pitch pitchLowG = new Pitch("G,", painter); 120 pitches[13] = pitchLowG; 121 Pitch pitchHighG = new Pitch("g", painter); 122 pitches[14] = pitchHighG; 123 Pitch pitchMiddleA = new Pitch("A", painter); 124 pitches[15] = pitchMiddleA; 125 Pitch pitchLowA = new Pitch("A,", painter); 126 pitches[16] = pitchLowA; 127 Pitch pitchHighA = new Pitch("a", painter); 128 pitches[17] = pitchHighA; 129 Pitch pitchMiddleB = new Pitch("B", painter); 130 pitches[18] = pitchMiddleB; 131 Pitch pitchLowB = new Pitch("B,", painter); 132 pitches[19] = pitchLowB; 133 Pitch pitchHighB = new Pitch("b", painter); 134 pitches[20] = pitchHighB; 135 return pitches; 136 } 137 138 private static Pitch find(String token, Pitch[] pitches) throws Exception { 139 for( int i = 0; i < pitches.length; i = i + 1) { 140 Pitch pitch = pitches[i]; 141 if(pitch.abcName().equals(token)) { 142 return pitch; 143 } 144 } 145 throw new Exception("### PITCH " + token + " NOT FOUND"); 146 } 147 148 private static void display(Pitch[] pitches) { 149 for(int i = 0; i < pitches.length; i = i + 1) { 150 System.out.println(pitches[i].toString()); 151 } 152 } 153 154 private static void playMelody(String input, Pitch[] pitches) throws Exception { 155 Scanner scanner = new Scanner(input); 156 while(scanner.hasNext()) { 157 String token = scanner.next(); 158 String pitchName; 159 String duration = ""; 160 if (token.indexOf(",") < 0) { 161 pitchName = token.substring(0,1); 162 duration = token.substring(1); 163 } 164 else { 165 pitchName = token.substring(0,2); 166 duration = token.substring(2); 167 } 168 if (duration.length() == 0) { 169 duration = "1"; 170 } 171 Pitch pitch = find(pitchName, pitches); 172 pitch.play(duration); 173 } 174 } 175 176 // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 177 178 static private void showErrorMessage(String message) { 179 miro.setVisible(false); 180 JOptionPane.showMessageDialog(null, message); 181 } 182 183 private static void initialization() { 184 //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH 185 miro = new SPainter("Chromesthesia", 500, 500); 186 miro.setVisible(false); 187 miro.setBrushWidth(7); 188 // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS 189 pitches = establishPitches(miro); 190 display(pitches); 191 } 192 193 private static String getInput() { 194 miro.setVisible(false); 195 String label = "Please enter a melody in ABC notation,EXIT, or AGAIN... "; 196 String input = JOptionPane.showInputDialog(null, label); 197 miro.setVisible(true); 198 if(input == null) { 199 input = ""; 200 } 201 return input; 202 } 203 204 static private void cleanup() { 205 System.exit(0); 206 } 207 } 208 209