1 /*
   2  * Copyright (c) 2012, 2014, Oracle and/or its affiliates.
   3  * All rights reserved. Use is subject to license terms.
   4  *
   5  * This file is available and licensed under the following license:
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  *  - Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *  - Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the distribution.
  16  *  - Neither the name of Oracle Corporation nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 
  33 package com.oracle.javafx.scenebuilder.kit.editor.panel.content.guides;
  34 
  35 import com.oracle.javafx.scenebuilder.kit.util.MathUtils;
  36 import java.util.Comparator;
  37 
  38 /**
  39  *
  40  */
  41 class HorizontalLineComparator implements Comparator<HorizontalSegment> {
  42 
  43     @Override
  44     public int compare(HorizontalSegment o1, HorizontalSegment o2) {
  45         assert o1 != null;
  46         assert o2 != null;
  47         assert MathUtils.equals(o1.getY1(), o1.getY2());
  48         assert MathUtils.equals(o2.getY1(), o2.getY2());
  49 
  50         final int result;
  51 
  52         if (o1 == o2) {
  53             result = 0;
  54         } else if (MathUtils.equals(o1.getY1(), o2.getY1())) {
  55             result = 0;
  56         } else if (o1.getY1() < o2.getY1()) {
  57             result = +1;
  58         } else {
  59             result = -1;
  60         }
  61 
  62         return result;
  63     }
  64 
  65 }