1 /* 2 * This program interprests 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 box, and an error message box. Simplicity 18 * of design is rendered by 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 java.util.Scanner; 30 import javax.swing.JOptionPane; 31 import javax.swing.SwingUtilities; 32 import painter.SPainter; 33 34 public class Chromesthesia { 35 36 // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD 37 38 public static void main(String[] args) { 39 SwingUtilities.invokeLater(new ThreadForGUI()); 40 } 41 42 private static class ThreadForGUI implements Runnable { 43 @Override 44 public void run() { 45 new Chromesthesia(); 46 } 47 } 48 49 public Chromesthesia() { 50 interperter(); 51 } 52 53 // FEATURED VARIABLES 54 55 private static SPainter miro; 56 private static Pitch[] pitches; 57 58 // INTERPRETER 59 60 public static void interperter() { 61 62 initialization(); // miro and pitches 63 String inputAgain = ""; 64 65 while ( true ){ 66 String input = getInput(); 67 68 if (input.equalsIgnoreCase("EXIT")){ 69 break; 70 } else if (input.equalsIgnoreCase("AGAIN")){ 71 try{ 72 playMelody(inputAgain,pitches); 73 } catch (Exception ex) { 74 showErrorMessage(ex.toString()); 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 private static void playMelody(String input, Pitch[] pitches) throws Exception { 154 Scanner scanner = new Scanner(input); 155 while (scanner.hasNext()){ 156 String token = scanner.next(); 157 String pitchName; 158 String duration = ""; 159 if (token.indexOf(",") < 0){ 160 pitchName = token.substring(0,1); 161 duration = token.substring(1); 162 }else { 163 pitchName = token.substring(0,2); 164 duration = token.substring(2); 165 } 166 if (duration.length() == 0 ){ duration = "1"; } 167 Pitch pitch = find(pitchName,pitches); 168 pitch.play(duration); 169 } 170 } 171 172 // INITIALIZATION, CLEANUP, GETTIN INPUT, ERROR MESSAGING 173 174 static private void showErrorMessage(String message) { 175 miro.setVisible(false); 176 JOptionPane.showMessageDialog(null,message); 177 } 178 179 private static void initialization() { 180 // ESTABLISH THE PAINTER AND GICE IT A SUBSTANTIAL BRUSH WIDTH 181 miro = new SPainter("Chromesthesia",500,500); 182 miro.setVisible(false); 183 miro.setBrushWidth(7); 184 // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS 185 pitches = establishPitches(miro); 186 display(pitches); 187 } 188 189 private static String getInput() { 190 miro.setVisible(false); 191 String label = "Please enter a melody in ABC notation, or EXIT, or AGAIN ... "; 192 String input = JOptionPane.showInputDialog(null,label); 193 miro.setVisible(true); 194 if (input == null ) { input = ""; } 195 return input; 196 } 197 198 static private void cleanup() { 199 System.exit(0); 200 } 201 } 202