DrawingLines.java

//package com.jfxbe;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Slider;
import javafx.scene.paint.Color;
import javafx.scene.shape.Line;
import javafx.scene.shape.StrokeLineCap;
import javafx.scene.text.Text;
import javafx.stage.Stage;

/**
 * Drawing Lines
 * @author carldea
 */
public class DrawingLines extends Application {
    
    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle(" Drawing Lines");

        Group root = new Group();
        Scene scene = new Scene(root, 300, 150, Color.rgb(220,220,220));
        
        // Red line
        Line redLine = new Line(10, 10, 200, 10);
        
        // setting common properties
        redLine.setStroke(Color.RED);
        redLine.setStrokeWidth(10);
        redLine.setStrokeLineCap(StrokeLineCap.BUTT);
        
        // creating a dashed pattern
        redLine.getStrokeDashArray().addAll(10d, 5d, 15d, 5d, 20d);
        redLine.setStrokeDashOffset(0);
        
        root.getChildren().add(redLine);
        
        // White line
        Line whiteLine = new Line(10, 30, 200, 30);
        whiteLine.setStroke(Color.WHITE);
        whiteLine.setStrokeWidth(10);
        whiteLine.setStrokeLineCap(StrokeLineCap.ROUND);
        
        root.getChildren().add(whiteLine);
        
        // Blue line
        Line blueLine = new Line(10, 50, 200, 50);
        blueLine.setStroke(Color.BLUE);
        blueLine.setStrokeWidth(10);
        
        root.getChildren().add(blueLine);
        
        
        // slider min, max, and current value
        Slider slider = new Slider(0, 100, 0);
        slider.setLayoutX(10);
        slider.setLayoutY(95);
        
        // bind the stroke dash offset property
        redLine.strokeDashOffsetProperty().bind(slider.valueProperty());
        root.getChildren().add(slider);
        
        Text offsetText = new Text("Stroke Dash Offset: " + slider.getValue());
        offsetText.setX(10);
        offsetText.setY(80);
        offsetText.setStroke(Color.WHITE);
        
        // display stroke dash offset value
        slider.valueProperty().addListener((ov, curVal, newVal) -> {
            offsetText.setText("Stroke Dash Offset: " + newVal );
        });
        root.getChildren().add(offsetText);
        
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    } 
}