JFugue 14. Absolute Time 1

In JFugue we can refer to absolute time such as 1.5, which indicates middle of measure 2. measure 1 starts at 0. We have to use @ to indicate next value is absolute time.

Here we use @0.0 to indicate next note starts at measure 1 start. We do not have to indicate where rests are, as the note properties are enough to provide all details for the timing.

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package jfugue14;

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextArea;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import org.jfugue.pattern.Pattern;
import org.jfugue.player.Player;

public class JFugue14 extends Application {
    
    public static void main(String[] args) {
        launch(args);
    }
    
    TextArea text;
    String[] bText = 
        {"Using +",
         "Using @",
         "Using @, root\nlargest velocity",
         "Using @, root\nsmallest velocity",
         "Using @, root\nlargest duration",
         "Using @, root\nsmallest duration"};
    Button[] buttons = new Button[bText.length];
    String[] patts = 
        {"C+E+G",
         "@0.0 C @0.0 E @0.0 G",
         "@0.0 Ca74 @0.0 E @0.0 Ga54",
         "@0.0 Ca54 @0.0 E @0.0 Ga74",
         "@0.0 Ch @0.0 E @0.0 G",
         "@0.0 C @0.0 E @0.0 Gh"};
    
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        int w = 250, h = 100;
        for (int i = 0; i<buttons.length; i++){
            String str = String.valueOf(i);
            buttons[i] = new Button(bText[i]);
            buttons[i].setOnAction( e-> example(str));
            buttons[i].setPrefSize(w,h);
            buttons[i].setFont(Font.font("Verdana", 16));
        }
        
        VBox examples = new VBox(10, buttons);
        examples.setPadding(new Insets(10));
        
        text = new TextArea();
        text.setPrefRowCount(20);
        text.setPrefColumnCount(32);
        text.setFont(Font.font("Verdana", 20));
        text.setEditable(false);
        text.setWrapText(true);
        
        HBox root = new HBox(50,examples,text);
        
        Scene scene = new Scene(root, 900, 600);
        primaryStage.setTitle("JFugue 14. Absolute Time");
        
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    
    private void example(String string) {
        
        int i = Integer.valueOf(string);
        Player player = new Player();
        Pattern pattern = new Pattern(patts[i]);
        text.appendText("\n" + (i+1) +". Pattern:\t" + pattern);
        player.play(pattern);
    }
}

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This is the output after the 6 buttons have been clicked:

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