/*
VARNA is a tool for the automated drawing, visualization and annotation of the secondary structure of RNA, designed as a companion software for web servers and databases.
Copyright (C) 2008 Kevin Darty, Alain Denise and Yann Ponty.
electronic mail : Yann.Ponty@lri.fr
paper mail : LRI, bat 490 University Paris-Sud 91405 Orsay Cedex France
This file is part of VARNA version 3.1.
VARNA version 3.1 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
VARNA version 3.1 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with VARNA version 3.1.
If not, see http://www.gnu.org/licenses.
*/
package fr.orsay.lri.varna.controlers;
import java.awt.Point;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import fr.orsay.lri.varna.VARNAPanel;
/**
* Listener which control the zoom-in and zoom-out with mouse wheel.
*
* @author DARTY Kevin
*/
public class ControleurMolette implements MouseWheelListener {
private VARNAPanel _vp;
public ControleurMolette(VARNAPanel vuep) {
_vp = vuep;
}
public void mouseWheelMoved(MouseWheelEvent e) {
// Roulement vers le haut => zoom in
if (e.getWheelRotation() == -1) {
_vp.getVARNAUI().UIZoomIn();
}
// Roulement vers le bas => zoom out
else {
_vp.getVARNAUI().UIZoomOut();
}
}
}