package org.simantics.g3d.vtk.swt;

import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Menu;

public class ContextMenuListener implements MouseListener{
	
	InteractiveVtkComposite panel;
	Menu contextMenu;
	
	public ContextMenuListener(InteractiveVtkComposite panel, Menu contextMenu) {
		this.panel = panel;
		this.contextMenu = contextMenu;
		this.panel.getComponent().addMouseListener(this);
	}
	
	int x = 0;
	int y = 0;
	int d = 4;
	int time = 0;
	
	@Override
	public void mouseUp(MouseEvent e) {
		if (e.button == 3) {
			if (Math.abs(x-e.x) < d && Math.abs(y-e.y) < d && (e.time - time) < 500) {
				Point point = panel.getComponent().getParent().toDisplay(new Point(e.x, e.y));
				contextMenu.setLocation(point.x, point.y);
				contextMenu.setVisible(true);
			}
		}
	}
	
	@Override
	public void mouseDown(MouseEvent e) {
		if (e.button == 3) {
			x = e.x;
			y = e.y;
			time = e.time;
		}
	}
	
	@Override
	public void mouseDoubleClick(MouseEvent e) {
			
	}

}