FlowEntryComparator.java from PovClipse at Krugle
Show FlowEntryComparator.java syntax highlighted
/* PovClipse - Eclipse plugin for editing and rendering Povray sceene files.
* Copyright (C) 2006-2007 Wolfgang Moestl wmoestl@web.de
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
package com.wm.povclipse.dialogs.flow;
import java.util.Comparator;
/**
* Comparator used for the <code>FlowEntry</code> set of <code>FlowWidgets</code>.
* @author Wolfgang Möstl
*/
public class FlowEntryComparator implements Comparator<IFlowEntry> {
/**
* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
*/
public int compare(IFlowEntry flowEntryOne, IFlowEntry flowEntryTwo) {
if (null == flowEntryOne) throw new IllegalArgumentException("The first object is NULL!");
if (null == flowEntryTwo) throw new IllegalArgumentException("The second object is NULL!");
if (null == flowEntryOne && null == flowEntryTwo)
return 0; // the're equal!
if (null == flowEntryOne)
return -1;
if (null == flowEntryTwo)
return 1;
// The're both not null
Float val1 = flowEntryOne.getPosition();
Float val2 = flowEntryTwo.getPosition();
return val1.compareTo(val2);
}
}
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