source: default/trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src/de/ugoe/cs/swe/bnftools/ui/views/syntaxdiagram/DragAndDropListener.java @ 5

package de.ugoe.cs.swe.bnftools.ui.views.syntaxdiagram;

import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.MouseEvent;
import org.eclipse.draw2d.MouseListener;
import org.eclipse.draw2d.MouseMotionListener;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;

public class DragAndDropListener extends MouseMotionListener.Stub implements
                MouseListener {

        Point start;

        public void mousePressed(MouseEvent e) {
                start = e.getLocation();                
        }

        public void mouseReleased(MouseEvent e) {
        }

        public void mouseDoubleClicked(MouseEvent e) {
        }

        public void mouseDragged(MouseEvent e) {
                Point p = e.getLocation();
                Dimension d = p.getDifference(start);
                start = p;
                Figure f = ((Figure) e.getSource());
                f.setBounds(f.getBounds().getTranslated(d.width, d.height));
        }
}