2 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.
3 Copyright (C) 2008 Kevin Darty, Alain Denise and Yann Ponty.
4 electronic mail : Yann.Ponty@lri.fr
5 paper mail : LRI, bat 490 Université Paris-Sud 91405 Orsay Cedex France
7 This file is part of VARNA version 3.1.
8 VARNA version 3.1 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
11 VARNA version 3.1 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
12 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along with VARNA version 3.1.
16 If not, see http://www.gnu.org/licenses.
18 package fr.orsay.lri.varna.controlers;
20 import java.awt.Point;
21 import java.awt.event.MouseWheelEvent;
22 import java.awt.event.MouseWheelListener;
24 import fr.orsay.lri.varna.VARNAPanel;
28 * Listener which control the zoom-in and zoom-out with mouse wheel.
32 public class ControleurMolette implements MouseWheelListener {
34 private VARNAPanel _vp;
35 public ControleurMolette(VARNAPanel vuep) {
39 public void mouseWheelMoved(MouseWheelEvent e) {
40 if (_vp.isFocusOwner())
42 // Roulement vers le haut => zoom in
43 if (e.getWheelRotation() == -1) {
44 _vp.getVARNAUI().UIZoomIn();
46 // Roulement vers le bas => zoom out
48 _vp.getVARNAUI().UIZoomOut();