Main.java Source code

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/*
 * Copyright (c) 2011, Pro JavaFX Authors
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of JFXtras nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Metronome1Main.fx - A simple example of animation using a Timeline
 *
 *  Developed 2011 by James L. Weaver jim.weaver [at] javafxpert.com
 *  as a JavaFX SDK 2.0 example for the Pro JavaFX book.
 */
import javafx.animation.AnimationTimer;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.Lighting;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import javafx.util.Duration;

public class Main extends Application {

    //main timeline
    private Timeline timeline;
    private AnimationTimer timer;

    //variable for storing actual frame
    private Integer i = 0;

    @Override
    public void start(Stage stage) {
        Group p = new Group();
        Scene scene = new Scene(p);
        stage.setScene(scene);
        stage.setWidth(500);
        stage.setHeight(500);
        p.setTranslateX(80);
        p.setTranslateY(80);

        //create a circle with effect
        final Circle circle = new Circle(20, Color.rgb(156, 216, 255));
        circle.setEffect(new Lighting());
        //create a text inside a circle
        final Text text = new Text(i.toString());
        text.setStroke(Color.BLACK);
        //create a layout for circle with text inside
        final StackPane stack = new StackPane();
        stack.getChildren().addAll(circle, text);
        stack.setLayoutX(30);
        stack.setLayoutY(30);

        p.getChildren().add(stack);
        stage.show();

        //create a timeline for moving the circle
        timeline = new Timeline();
        timeline.setCycleCount(Timeline.INDEFINITE);
        timeline.setAutoReverse(true);

        //You can add a specific action when each frame is started.
        timer = new AnimationTimer() {
            @Override
            public void handle(long l) {
                text.setText(i.toString());
                i++;
            }
        };

        //create a keyValue with factory: scaling the circle 2times
        KeyValue keyValueX = new KeyValue(stack.scaleXProperty(), 2);
        KeyValue keyValueY = new KeyValue(stack.scaleYProperty(), 2);

        //create a keyFrame, the keyValue is reached at time 2s
        Duration duration = Duration.millis(2000);
        //one can add a specific action when the keyframe is reached
        EventHandler onFinished = new EventHandler<ActionEvent>() {
            public void handle(ActionEvent t) {
                stack.setTranslateX(java.lang.Math.random() * 200 - 100);
                //reset counter
                i = 0;
            }
        };

        KeyFrame keyFrame = new KeyFrame(duration, onFinished, keyValueX, keyValueY);

        //add the keyframe to the timeline
        timeline.getKeyFrames().add(keyFrame);

        timeline.play();
        timer.start();
    }

    public static void main(String[] args) {
        Application.launch(args);
    }
}