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 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 28 package chromesthesia2; 29 30 31 import chromesthesia2.Pitch; 32 import painter.SPainter; 33 34 import javax.swing.*; 35 import java.util.Scanner; 36 37 public class Chromesthesia { 38 //infrastructure for the program -- launching a "Graphics" thread 39 40 public static void main(String[] args){ 41 SwingUtilities.invokeLater(new ThreadForGUI()); 42 } 43 44 private static class ThreadForGUI implements Runnable{ 45 @Override 46 public void run(){ 47 new Chromesthesia(); 48 } 49 } 50 51 public Chromesthesia(){ 52 interpreter(); 53 } 54 55 //featured variables 56 57 private static SPainter miro; 58 private static Pitch[] pitches; 59 60 //the interpreter 61 62 public static void interpreter(){ 63 String previousState = " "; 64 65 initialization(); //miro and pitchers 66 67 while(true){ 68 String input = getInput(); 69 70 71 72 73 if(input.equalsIgnoreCase("again")){ 74 if (previousState != " "){ 75 try{ 76 playMelody(previousState,pitches); 77 }catch (Exception ex) { 78 showErrorMessage(ex.toString()); 79 } 80 } else{ 81 showErrorMessage("There is no previous state"); 82 } 83 84 } 85 else if(input.equalsIgnoreCase("EXIT")){ 86 break; 87 } else { 88 previousState = input; 89 90 try{ 91 playMelody(input,pitches); 92 }catch (Exception ex){ 93 showErrorMessage(ex.toString()); 94 } 95 } 96 } 97 cleanup(); //miro has to go 98 99 } 100 //methods pertaining to the chromesthetic pitches 101 102 private static Pitch[] establishPitches(SPainter painter){ 103 Pitch[] pitches = new Pitch[21]; 104 Pitch pitchMiddleC = new Pitch("C", painter); 105 pitches[0] = pitchMiddleC; 106 Pitch pitchLowC = new Pitch("C,",painter); 107 pitches[1] = pitchLowC; 108 Pitch pitchHighC = new Pitch("c",painter); 109 pitches[2] = pitchHighC; 110 Pitch pitchMiddleD = new Pitch("D",painter); 111 pitches[3] = pitchMiddleD; 112 Pitch pitchLowD = new Pitch("D,",painter); 113 pitches[4] = pitchLowD; 114 Pitch pitchHighD = new Pitch("d",painter); 115 pitches[5] = pitchHighD; 116 Pitch pitchMiddleE = new Pitch("E",painter); 117 pitches[6] = pitchMiddleE; 118 Pitch pitchLowE = new Pitch("E,",painter); 119 pitches[7] = pitchLowE; 120 Pitch pitchHighE = new Pitch("e",painter); 121 pitches[8] = pitchHighE; 122 Pitch pitchMiddleF = new Pitch("F",painter); 123 pitches[9] = pitchMiddleF; 124 Pitch pitchLowF = new Pitch("F,",painter); 125 pitches[10] = pitchLowF; 126 Pitch pitchHighF = new Pitch("f",painter); 127 pitches[11] = pitchHighF; 128 Pitch pitchMiddleG = new Pitch("G",painter); 129 pitches[12] = pitchMiddleG; 130 Pitch pitchLowG = new Pitch("G,",painter); 131 pitches[13] = pitchLowG; 132 Pitch pitchHighG = new Pitch("g",painter); 133 pitches[14] = pitchHighG; 134 Pitch pitchMiddleA = new Pitch("A",painter); 135 pitches[15] = pitchMiddleA; 136 Pitch pitchLowA = new Pitch("A,",painter); 137 pitches[16] = pitchLowA; 138 Pitch pitchHighA = new Pitch("a",painter); 139 pitches[17] = pitchHighA; 140 Pitch pitchMiddleB = new Pitch("B",painter); 141 pitches[18] = pitchMiddleB; 142 Pitch pitchLowB = new Pitch("B,",painter); 143 pitches[19] = pitchLowB; 144 Pitch pitchHighB = new Pitch("b",painter); 145 pitches[20] = pitchHighB; 146 return pitches; 147 } 148 149 private static Pitch find(String token, Pitch[] pitches) throws Exception{ 150 for (int i =0; i < pitches.length; i=i+1){ 151 Pitch pitch = pitches[i]; 152 if(pitch.abcName().equals(token)){ 153 return pitch; 154 } 155 } 156 throw new Exception("### PITCH " +token+ "NOT FOUND"); 157 } 158 159 private static void display(Pitch[] pitches){ 160 for(int i = 0; i< pitches.length; i = i + 1){ 161 System.out.println(pitches[i].toString()); 162 } 163 } 164 private static void playMelody(String input, Pitch[] pitches) throws Exception { 165 Scanner scanner = new Scanner(input); 166 167 while ( scanner.hasNext() ) { 168 String token = scanner.next(); 169 String pitchName; 170 String duration = " "; 171 172 if( token.indexOf(",") < 0){ 173 pitchName = token.substring(0,1); 174 duration = token.substring(1); 175 } else { 176 pitchName = token.substring(0,2); 177 duration = token.substring(2); 178 } 179 if (duration.length()==0) { 180 duration = "1"; 181 } 182 Pitch pitch = find(pitchName,pitches); 183 pitch.play(duration); 184 } 185 } 186 // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING 187 static private void showErrorMessage(String message) { 188 miro.setVisible(false); 189 JOptionPane.showMessageDialog(null, message); 190 } 191 private static void initialization() { 192 // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH 193 miro = new SPainter("Chromesthesia",500,500); 194 miro.setVisible(false); 195 miro.setBrushWidth(7); 196 // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS 197 pitches = establishPitches(miro); 198 display(pitches); 199 } 200 private static String getInput() { 201 miro.setVisible(false); 202 String label = "Please enter a melody in ABC notation, or EXIT ... "; 203 String input1 = JOptionPane.showInputDialog(null,label); 204 miro.setVisible(true); 205 if ( input1 == null ) { input1 = ""; } 206 return input1; 207 } 208 static private void cleanup() { 209 System.exit(0); 210 } 211 212 } 213