JavaFX example: apply Shadow effect

JavaFX example: apply Shadow effect

Further work on last example JavaFX: Move node to front, DropShadow effect will be added in Circles while moving. To remove the DropShadow effect, call setEffect(null) method of the node.



Example code:

package javafx_drawsomething;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Cursor;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.BlurType;
import javafx.scene.effect.DropShadow;
import javafx.scene.input.MouseEvent;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;

/**
 * @web http://java-buddy.blogspot.com/
 */
public class JavaFX_DrawSomething extends Application {
    
    Circle circle_Red, circle_Green, circle_Blue;
    double orgSceneX, orgSceneY;
    double orgTranslateX, orgTranslateY;
    
    DropShadow dropShadow;
    
    @Override
    public void start(Stage primaryStage) {
        
        //Create Circles
        circle_Red = new Circle(50.0f, Color.RED);
        circle_Red.setCursor(Cursor.HAND);
        circle_Red.setOnMousePressed(circleOnMousePressedEventHandler);
        circle_Red.setOnMouseDragged(circleOnMouseDraggedEventHandler);
        
        circle_Green = new Circle(50.0f, Color.GREEN);
        circle_Green.setCursor(Cursor.MOVE);
        circle_Green.setCenterX(150);
        circle_Green.setCenterY(150);
        circle_Green.setOnMousePressed(circleOnMousePressedEventHandler);
        circle_Green.setOnMouseDragged(circleOnMouseDraggedEventHandler);
        
        circle_Blue = new Circle(50.0f, Color.BLUE);
        circle_Blue.setCursor(Cursor.CROSSHAIR);
        circle_Blue.setTranslateX(300);
        circle_Blue.setTranslateY(100);
        circle_Blue.setOnMousePressed(circleOnMousePressedEventHandler);
        circle_Blue.setOnMouseDragged(circleOnMouseDraggedEventHandler);
                
        Group root = new Group();
        root.getChildren().addAll(circle_Red, circle_Green, circle_Blue);
        
        primaryStage.setResizable(false);
        primaryStage.setScene(new Scene(root, 400,350));
        
        primaryStage.setTitle("java-buddy");
        primaryStage.show();
        
        dropShadow = new DropShadow();
        dropShadow.setBlurType(BlurType.GAUSSIAN);
        dropShadow.setColor(Color.BLACK);
        dropShadow.setOffsetX(5.0);
        dropShadow.setOffsetY(5.0);
        dropShadow.setRadius(10.0);
        
        circle_Red.setOnMouseReleased(circleOnMouseReleasedEventHandler);
        circle_Green.setOnMouseReleased(circleOnMouseReleasedEventHandler);
        circle_Blue.setOnMouseReleased(circleOnMouseReleasedEventHandler);
    }

    public static void main(String[] args) {
        launch(args);
    }
    
    EventHandler<MouseEvent> circleOnMousePressedEventHandler = 
        new EventHandler<MouseEvent>() {

        @Override
        public void handle(MouseEvent t) {
            orgSceneX = t.getSceneX();
            orgSceneY = t.getSceneY();
            orgTranslateX = ((Circle)(t.getSource())).getTranslateX();
            orgTranslateY = ((Circle)(t.getSource())).getTranslateY();
            
            ((Circle)(t.getSource())).toFront();
            ((Circle)(t.getSource())).setEffect(dropShadow);
        }
    };
    
    EventHandler<MouseEvent> circleOnMouseDraggedEventHandler = 
        new EventHandler<MouseEvent>() {

        @Override
        public void handle(MouseEvent t) {
            double offsetX = t.getSceneX() - orgSceneX;
            double offsetY = t.getSceneY() - orgSceneY;
            double newTranslateX = orgTranslateX + offsetX;
            double newTranslateY = orgTranslateY + offsetY;
            
            ((Circle)(t.getSource())).setTranslateX(newTranslateX);
            ((Circle)(t.getSource())).setTranslateY(newTranslateY);
        }
    };
    
    EventHandler<MouseEvent> circleOnMouseReleasedEventHandler = 
        new EventHandler<MouseEvent>() {

        @Override
        public void handle(MouseEvent t) {
            ((Circle)(t.getSource())).setEffect(null);
        }
    };
}