FXZoomTest01 (testing what happens if size of scaled nodes changes)

FXZoomTest01.java

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package fxzoomtest01;

import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.ScaleTransition;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import javafx.util.Duration;

/**
 * 
 * @author Michael Hoffer <info@michaelhoffer.de>
 */
public class FXZoomTest01 extends Application {

    @Override
    public void start(Stage primaryStage) {

        VBox root = new VBox();

        Pane pane = new Pane();
        pane.setPrefSize(100, 300);
        root.getChildren().add(pane);
        
        // original node position and size
        final Pane originalNode = new StackPane();
        originalNode.setStyle(
                "-fx-background-color: #aaaaaa; "
                + "-fx-text-fill: black; "
                + "-fx-border-color: black; "
                + "-fx-border-style: dotted");
        originalNode.setPrefSize(100, 100);
        originalNode.setLayoutX(100);
        originalNode.setLayoutY(50);
        originalNode.getChildren().add(new Text("original pos"));
        pane.getChildren().add(originalNode);

        // the node that shall be scaled
        final Pane zoomedNode = new Pane();
        zoomedNode.setStyle(
                "-fx-background-color: #334455; "
                + "-fx-text-fill: black; "
                + "-fx-border-color: black;");
        zoomedNode.setPrefSize(100, 100);
        zoomedNode.setLayoutX(100);
        zoomedNode.setLayoutY(50);
        pane.getChildren().add(zoomedNode);

        // button pane
        HBox btnPane = new HBox(8);
        root.getChildren().add(btnPane);

        // buttons
        Button scaleOnBtn = new Button();
        scaleOnBtn.setText("Scale On");
        scaleOnBtn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                ScaleTransition st = new ScaleTransition(Duration.seconds(1), zoomedNode);
                st.setFromX(zoomedNode.getScaleX());
                st.setToX(0.3);
                st.setFromY(zoomedNode.getScaleY());
                st.setToY(0.3);

                st.play();
            }
        });
        btnPane.getChildren().add(scaleOnBtn);
        
        Button scaleOffBtn = new Button();
        scaleOffBtn.setText("Scale Off");
        scaleOffBtn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                ScaleTransition st = new ScaleTransition(Duration.seconds(1), zoomedNode);
                st.setFromX(zoomedNode.getScaleX());
                st.setToX(1);
                st.setFromY(zoomedNode.getScaleY());
                st.setToY(1);

                st.play();
            }
        });
        btnPane.getChildren().add(scaleOffBtn);
        
        Button increaseSizeBtn = new Button();
        increaseSizeBtn.setText("Increase Size");
        increaseSizeBtn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                
                KeyFrame kf0 = new KeyFrame(Duration.ZERO,
                        new KeyValue(zoomedNode.prefWidthProperty(),
                        zoomedNode.getWidth()));
                KeyFrame kf1 = new KeyFrame(Duration.seconds(1),
                        new KeyValue(zoomedNode.prefWidthProperty(),
                        zoomedNode.getWidth()*2));
                
                Timeline tl = new Timeline(kf0,kf1);
                tl.play();
            }
        });
        btnPane.getChildren().add(increaseSizeBtn);
        
        Button decreaseSizeBtn = new Button();
        decreaseSizeBtn.setText("Decrease Size");
        decreaseSizeBtn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                
                KeyFrame kf0 = new KeyFrame(Duration.ZERO,
                        new KeyValue(zoomedNode.prefWidthProperty(),
                        zoomedNode.getWidth()));
                KeyFrame kf1 = new KeyFrame(Duration.seconds(1),
                        new KeyValue(zoomedNode.prefWidthProperty(),
                        zoomedNode.getWidth()/2.0f));
                
                Timeline tl = new Timeline(kf0,kf1);
                tl.play();
            }
        });
        
        btnPane.getChildren().add(decreaseSizeBtn);

        // finally, show the stage
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setTitle("ZoomTest");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    /**
     * The main() method is ignored in correctly deployed JavaFX application.
     * main() serves only as fallback in case the application can not be
     * launched through deployment artifacts, e.g., in IDEs with limited FX
     * support. NetBeans ignores main().
     *
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }
}