Java tutorial
//package com.java2s; /* * K-scope * Copyright 2012-2013 RIKEN, Japan * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * Version to work with SSHconnect. */ import java.awt.Point; import javax.swing.JViewport; import javax.swing.SwingConstants; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class Main { public static void synchronizeView(final JViewport masterViewport, final JViewport slaveViewport, final int orientation) { final ChangeListener c1 = new ChangeListener() { public void stateChanged(ChangeEvent e) { if (masterViewport.getView() == null || slaveViewport.getView() == null) { return; } if (orientation == SwingConstants.HORIZONTAL) { Point v1 = masterViewport.getViewPosition(); Point v2 = slaveViewport.getViewPosition(); if (v1.x != v2.x) { slaveViewport.setViewPosition(new Point(v1.x, v2.y)); } } else if (orientation == SwingConstants.VERTICAL) { Point v1 = masterViewport.getViewPosition(); Point v2 = slaveViewport.getViewPosition(); if (v1.y != v2.y) { slaveViewport.setViewPosition(new Point(v2.x, v1.y)); } } } }; masterViewport.addChangeListener(c1); } }