1 /* 2 This program interprets melodic lines given in ABC notation as a chromesthete might. 3 A Pitch class will be defined, and will take center stage in the processing. 4 Interpreting a melody in ABC notation will amount to flashing colored rectangles for prescribed durations, 5 while sounding the pitch! The color of the rectangle will correspond to pitch class. The duration will correspond to 6 the duration of the note. 7 For this first version of the program, the duration will be held constant at 1 beat. 8 Three sorts of images will appear on the screen, the chromesthetic output box, a text input box, and an error message 9 box. Simplicity of design is rendered by permitting only one box to be on the screen at a time. 10 ABC represents notes in a manner consistent with these examples: C, D, E, C D E c d e. 11 Google ABC music representation if you would like to know more about it. 12 */ 13 14 package chromesthesia2; 15 16 import java.util.Scanner; 17 import javax.swing.JOptionPane; 18 import javax.swing.SwingUtilities; 19 import painter.SPainter; 20 21 public class Chromesthesia { 22 23 // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD 24 25 public static void main(String[] args) { 26 SwingUtilities.invokeLater(new ThreadForGUI()); 27 } 28 29 private static class ThreadForGUI implements Runnable { 30 @Override 31 public void run() { 32 new Chromesthesia(); 33 } 34 } 35 36 public Chromesthesia() { 37 interpreter(); 38 } 39 40 // FEATURED VARIABLES 41 42 private static SPainter miro; 43 private static Pitch[] pitches; 44 45 // THE INTERPRETER 46 public static void interpreter() { 47 String initialinput = " "; 48 initialization(); //miro and pitches 49 while (true) { 50 String input = getInput(); 51 52 if (input.equalsIgnoreCase("AGAIN")) { 53 if (initialinput != " ") 54 try { 55 playMelody(initialinput, pitches); 56 } catch (Exception ex) { 57 showErrorMessage(ex.toString()); 58 } 59 else { 60 showErrorMessage("please enter input"); 61 } 62 } else if (input.equalsIgnoreCase("EXIT")) { 63 break; 64 } else { 65 initialinput = input; 66 try { 67 playMelody(input, pitches); 68 } catch (Exception ex) { 69 showErrorMessage(ex.toString()); 70 } 71 } 72 } 73 cleanup(); //miro has to go 74 } 75 76 // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES 77 78 private static Pitch[] establishPitches(SPainter painter) { 79 Pitch[] pitches = new Pitch[21]; 80 Pitch pitchMiddleC = new Pitch("C", painter); 81 pitches[0] = pitchMiddleC; 82 Pitch pitchLowC = new Pitch("C,", painter); 83 pitches[1] = pitchLowC; 84 Pitch pitchHighC = new Pitch("c", painter); 85 pitches[2] = pitchHighC; 86 Pitch pitchMiddleD = new Pitch("D", painter); 87 pitches[3] = pitchMiddleD; 88 Pitch pitchLowD = new Pitch("D,", painter); 89 pitches[4] = pitchLowD; 90 Pitch pitchHighD = new Pitch("d", painter); 91 pitches[5] = pitchHighD; 92 Pitch pitchMiddleE = new Pitch("E", painter); 93 pitches[6] = pitchMiddleE; 94 Pitch pitchLowE = new Pitch("E,", painter); 95 pitches[7] = pitchLowE; 96 Pitch pitchHighE = new Pitch("e", painter); 97 pitches[8] = pitchHighE; 98 Pitch pitchMiddleF = new Pitch("F", painter); 99 pitches[9] = pitchMiddleF; 100 Pitch pitchLowF = new Pitch("F,", painter); 101 pitches[10] = pitchLowC; 102 Pitch pitchHighF = new Pitch("f", painter); 103 pitches[11] = pitchHighF; 104 Pitch pitchMiddleG = new Pitch("G", painter); 105 pitches[12] = pitchMiddleG; 106 Pitch pitchLowG = new Pitch("G,", painter); 107 pitches[13] = pitchLowG; 108 Pitch pitchHighG = new Pitch("g", painter); 109 pitches[14] = pitchHighG; 110 Pitch pitchMiddleA = new Pitch("A", painter); 111 pitches[15] = pitchMiddleA; 112 Pitch pitchLowA = new Pitch("A,", painter); 113 pitches[16] = pitchLowA; 114 Pitch pitchHighA = new Pitch("a", painter); 115 pitches[17] = pitchHighA; 116 Pitch pitchMiddleB = new Pitch("B", painter); 117 pitches[18] = pitchMiddleB; 118 Pitch pitchLowB = new Pitch("B,", painter); 119 pitches[19] = pitchLowB; 120 Pitch pitchHighB = new Pitch("b", painter); 121 pitches[20] = pitchHighB; 122 return pitches; 123 } 124 125 private static Pitch find(String token, Pitch[] pitches) throws Exception { 126 for (int i = 0; i < pitches.length; i = i + 1) { 127 Pitch pitch = pitches[i]; 128 if (pitch.abcName().equals(token)) { 129 return pitch; 130 } 131 } 132 throw new Exception("### PITCH" + token + " NOT FOUND"); 133 } 134 135 private static void display(Pitch[] pitches) { 136 for (int i = 0; i < pitches.length; i = i + 1) { 137 System.out.println(pitches[i].toString()); 138 } 139 } 140 141 private static void playMelody(String input, Pitch[] pitches) throws Exception { 142 Scanner scanner = new Scanner(input); 143 while (scanner.hasNext()) { 144 String token = scanner.next(); 145 String pitchName; 146 String duration = ""; 147 if (token.indexOf(",")<0) { 148 pitchName = token.substring(0, 1); 149 duration = token.substring(1); 150 } else { 151 pitchName = token.substring(0,2); 152 duration = token.substring(2); 153 } 154 if (duration.length() == 0) { duration = "1"; } 155 Pitch pitch = find(pitchName, pitches); 156 pitch.play("1"); 157 } 158 } 159 160 // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 161 162 static private void showErrorMessage(String message) { 163 miro.setVisible(false); 164 JOptionPane.showMessageDialog(null, message); 165 } 166 167 private static void initialization() { 168 // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH 169 miro = new SPainter("Chromesthesia", 500, 500); 170 miro.setVisible(false); 171 miro.setBrushWidth(7); 172 // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS 173 pitches = establishPitches(miro); 174 display(pitches); 175 } 176 177 private static String getInput() { 178 miro.setVisible(false); 179 String label = "Please enter a melody in ABC notation, or EXIT... "; 180 String input = JOptionPane.showInputDialog(null,label); 181 miro.setVisible(true); 182 if (input == null) { 183 input = ""; 184 } 185 return input; 186 } 187 188 static private void cleanup() { 189 System.exit(0); 190 } 191 } 192