EnterBoundsBox.java

package org.geepawhill.whiteboard.action;

import javafx.geometry.Bounds;
import javafx.scene.Node;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;

public class EnterBoundsBox implements Action
{

	private String selector;

	private Rectangle box;
	private double startX;
	private double startY;
	private double endX;
	private double endY;

	private Pane root;

	public EnterBoundsBox(Pane root, String selector)
	{
		this.root = root;
		this.selector = selector;
		box = new Rectangle(0, 0, 0, 0);
	}
		
	public void animate(double frac)
	{

		box.setX(startX);
		box.setY(startY);
		box.setWidth((endX - startX) * frac);
		box.setHeight((endY - startY) * frac);
	}

	public void beforeAnimation()
	{
		box.setFill(Color.TRANSPARENT);
		box.setStroke(Color.RED);
		box.setOpacity(0.5);
		box.setStrokeWidth(5d);
		Node fromLast = root.lookup(selector);
		if(fromLast==null) throw new RuntimeException("Can't find node: "+selector);
		Bounds bounds = fromLast.getBoundsInParent();
		startX = bounds.getMinX() - 4;
		startY = bounds.getMinY() - 4;
		endX = bounds.getMaxX() + 4;
		endY = bounds.getMaxY() + 4;
	}

	public double ms()
	{
		return 1000d;
	}

	public ActorSet actors()
	{
		return new ActorSet(box);
	}

}