/* * This program interprets melodic lines given in ABC notation as a * chromesthete might. * * A Pitch class will be defined, and will take center stage in the * processing. * * Interpreting a melody in ABC notation will amount to flashing * colored rectangles for prescribed durations, while sounding * the pitch! The color of the rectangle will correspond to pitch * class. The duration will correspond to the duration of the note.130 * * For this first version of the program, the duration will be held * constant at 1 beat. * * Three sorts of images will appear on the screen, the chromesthetic * output box, a text input box, and an error message box. Simplicity * of design is rendered by permitting only one box to be on the screen * at a time. * * ABC represents notes in a manner consistent with these examples: * C, D, E, C D E c d e * * Google ABC music representation if you would like to know more about it. */ package chromesthesia0; import java.util.Scanner; import javax.swing.JOptionPane; import javax.swing.SwingUtilities; import painter.SPainter; public class chromesthesia { // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD public static void main(String[] args) { SwingUtilities.invokeLater(new ThreadForGUI()); } private static class ThreadForGUI implements Runnable { @Override public void run() { new chromesthesia();}}public chromesthesia() { interpreter(); } // FEATURED VARIABLES private static SPainter miro; private static Pitch[] pitches; // THE INTERPRETER public static void interpreter() { initialization() ; // miro and pitches while ( true ) {String input = getInput(); if ( input.equalsIgnoreCase("EXIT") ) {break; } else {try {playMelody(input,pitches); } catch (Exception ex) {showErrorMessage(ex.toString()); } } }cleanup(); // miro has to go } // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES private static Pitch[] establishPitches(SPainter painter) { Pitch[] pitches = new Pitch[9]; Pitch pitchMiddleC = new Pitch("C",painter); pitches[0] = pitchMiddleC; Pitch pitchLowC = new Pitch("C,",painter); pitches[1] = pitchLowC;Pitch pitchHighC = new Pitch("c",painter);pitches[2] = pitchHighC; Pitch pitchMiddleD = new Pitch("D",painter); pitches[3] = pitchMiddleD; Pitch pitchLowD = new Pitch("D,",painter); pitches[4] = pitchLowD; Pitch pitchHighD = new Pitch("d",painter); pitches[5] = pitchHighD; Pitch pitchMiddleE = new Pitch("E",painter); pitches[6] = pitchMiddleE; Pitch pitchLowE = new Pitch("E,",painter); pitches[7] = pitchLowE; Pitch pitchHighE = new Pitch("e",painter);pitches[8] = pitchHighE;return pitches; }private static Pitch find(String token, Pitch[] pitches) throws Exception { for ( int i = 0; i < pitches.length; i = i + 1 ) { Pitch pitch = pitches[i]; if ( pitch.abcName().equals(token) ) { return pitch; } }throw new Exception("### PITCH " + token + " NOT FOUND"); } private static void display(Pitch[] pitches) {for ( int i = 0; i < pitches.length; i = i + 1 ) { System.out.println(pitches[i].toString()); } } private static void playMelody(String input, Pitch[] pitches) throws Exception { Scanner scanner = new Scanner(input); while ( scanner.hasNext() ) { String token = scanner.next(); Pitch pitch = find(token,pitches); pitch.play("1"); } } // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING static private void showErrorMessage(String message) {miro.setVisible(false); JOptionPane.showMessageDialog(null, message); } private static void initialization() { // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH miro = new SPainter("Chromesthesia",500,500); miro.setVisible(false);miro.setBrushWidth(7); // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS pitches = establishPitches(miro); display(pitches); }private static String getInput() {miro.setVisible(false); String label = "Please enter a melody in ABC notation, or EXIT ... "; String input = JOptionPane.showInputDialog(null,label); miro.setVisible(true); if ( input == null ) { input = ""; } return input; }static private void cleanup() {System.exit(0); } }