rubberbandtest.java

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/*
 * Created on Aug 29, 2004
 */
package org.flexdock.test.drag;

import java.awt.Color;
import java.awt.Component;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

import org.flexdock.docking.drag.effects.EffectsManager;
import org.flexdock.docking.drag.effects.RubberBand;



/**
 * @author marius
 */
public class RubberBandTest extends JFrame {
	private RubberBand rubberBand;
	private Point offset;
	
	private RubberBandTest() {
		super("Rubber Band Test");
		rubberBand = EffectsManager.getRubberBand();
		setContentPane(createContentPane());
	}
	
	private JPanel createContentPane() {
		JPanel jp = new JPanel();
		JLabel lbl = new JLabel("Drag Me");
		DragListener dl = new DragListener();
		lbl.addMouseListener(dl);
		lbl.addMouseMotionListener(dl);
		lbl.setBackground(Color.gray);
		lbl.setOpaque(true);
		jp.add(lbl);
		return jp;
		
	}
	
	private void startDrag(MouseEvent me) {
		Point p = me.getPoint();
		SwingUtilities.convertPointToScreen(p, (Component)me.getSource());
		Point win = getLocationOnScreen();
		offset = new Point(win.x-p.x, win.y-p.y);
	}
	
	private void processDrag(MouseEvent me) {
		Rectangle r = getBounds();
		r.setLocation(getMousePoint(me));
		rubberBand.paint(r);
	}
	
	private void stopDrag(MouseEvent me) {
		rubberBand.clear();
		setLocation(getMousePoint(me));
		offset = null;
	}
	
	private Point getMousePoint(MouseEvent me) {
		Point p = me.getPoint();
		SwingUtilities.convertPointToScreen(p, (Component)me.getSource());
		p.x += offset.x;
		p.y += offset.y;
		return p;
	}
	
	private class DragListener extends MouseAdapter implements MouseMotionListener {
		public void mouseDragged(MouseEvent me) {
			processDrag(me);
		}
		public void mouseMoved(MouseEvent me) {
			// do nothing
		}
		
		public void mousePressed(MouseEvent me) {
			startDrag(me);
		}
		
		public void mouseReleased(MouseEvent me) {
			stopDrag(me);
		}
	}

	
	public static void main(String[] args) {
		JFrame f = new RubberBandTest();
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.setSize(100, 100);
		f.setVisible(true);
	}

}