001 /** 002 * ======================================== 003 * JFreeReport : a free Java report library 004 * ======================================== 005 * 006 * Project Info: http://reporting.pentaho.org/ 007 * 008 * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors. 009 * 010 * This library is free software; you can redistribute it and/or modify it under the terms 011 * of the GNU Lesser General Public License as published by the Free Software Foundation; 012 * either version 2.1 of the License, or (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 016 * See the GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public License along with this 019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 020 * Boston, MA 02111-1307, USA. 021 * 022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 023 * in the United States and other countries.] 024 * 025 * ------------ 026 * $Id: ActionPluginToolbarComparator.java 2725 2007-04-01 18:49:29Z taqua $ 027 * ------------ 028 * (C) Copyright 2000-2005, by Object Refinery Limited. 029 * (C) Copyright 2005-2007, by Pentaho Corporation. 030 */ 031 032 package org.jfree.report.modules.gui.swing.common; 033 034 import java.util.Comparator; 035 036 /** 037 * Creation-Date: 16.11.2006, 16:50:39 038 * 039 * @author Thomas Morgner 040 */ 041 public class ActionPluginToolbarComparator implements Comparator 042 { 043 public ActionPluginToolbarComparator() 044 { 045 } 046 047 /** 048 * Compares its two arguments for order. Returns a negative integer, zero, or 049 * a positive integer as the first argument is less than, equal to, or greater 050 * than the second.<p> 051 * <p/> 052 * The implementor must ensure that <tt>sgn(compare(x, y)) == -sgn(compare(y, 053 * x))</tt> for all <tt>x</tt> and <tt>y</tt>. (This implies that 054 * <tt>compare(x, y)</tt> must throw an exception if and only if 055 * <tt>compare(y, x)</tt> throws an exception.)<p> 056 * <p/> 057 * The implementor must also ensure that the relation is transitive: 058 * <tt>((compare(x, y)>0) && (compare(y, z)>0))</tt> implies 059 * <tt>compare(x, z)>0</tt>.<p> 060 * <p/> 061 * Finally, the implementer must ensure that <tt>compare(x, y)==0</tt> implies 062 * that <tt>sgn(compare(x, z))==sgn(compare(y, z))</tt> for all 063 * <tt>z</tt>.<p> 064 * <p/> 065 * It is generally the case, but <i>not</i> strictly required that 066 * <tt>(compare(x, y)==0) == (x.equals(y))</tt>. Generally speaking, any 067 * comparator that violates this condition should clearly indicate this fact. 068 * The recommended language is "Note: this comparator imposes orderings that 069 * are inconsistent with equals." 070 * 071 * @param o1 the first object to be compared. 072 * @param o2 the second object to be compared. 073 * @return a negative integer, zero, or a positive integer as the first 074 * argument is less than, equal to, or greater than the second. 075 * @throws ClassCastException if the arguments' types prevent them from being 076 * compared by this Comparator. 077 */ 078 public int compare(final Object o1, final Object o2) 079 { 080 final ActionPlugin a1 = (ActionPlugin) o1; 081 final ActionPlugin a2 = (ActionPlugin) o2; 082 083 final int toolbarOrder = a1.getToolbarOrder(); 084 final int toolbarOrder2 = a2.getToolbarOrder(); 085 if (toolbarOrder < toolbarOrder2) 086 { 087 return -1; 088 } 089 if (toolbarOrder > toolbarOrder2) 090 { 091 return 1; 092 } 093 return 0; 094 } 095 }