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    1   /*
    2    * Copyright (c) 1997, 2000, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   package javax.swing;
   26   
   27   
   28   /**
   29    * A collection of constants generally used for positioning and orienting
   30    * components on the screen.
   31    *
   32    * @author Jeff Dinkins
   33    * @author Ralph Kar (orientation support)
   34    */
   35   public interface SwingConstants {
   36   
   37           /**
   38            * The central position in an area. Used for
   39            * both compass-direction constants (NORTH, etc.)
   40            * and box-orientation constants (TOP, etc.).
   41            */
   42           public static final int CENTER  = 0;
   43   
   44           //
   45           // Box-orientation constant used to specify locations in a box.
   46           //
   47           /**
   48            * Box-orientation constant used to specify the top of a box.
   49            */
   50           public static final int TOP     = 1;
   51           /**
   52            * Box-orientation constant used to specify the left side of a box.
   53            */
   54           public static final int LEFT    = 2;
   55           /**
   56            * Box-orientation constant used to specify the bottom of a box.
   57            */
   58           public static final int BOTTOM  = 3;
   59           /**
   60            * Box-orientation constant used to specify the right side of a box.
   61            */
   62           public static final int RIGHT   = 4;
   63   
   64           //
   65           // Compass-direction constants used to specify a position.
   66           //
   67           /**
   68            * Compass-direction North (up).
   69            */
   70           public static final int NORTH      = 1;
   71           /**
   72            * Compass-direction north-east (upper right).
   73            */
   74           public static final int NORTH_EAST = 2;
   75           /**
   76            * Compass-direction east (right).
   77            */
   78           public static final int EAST       = 3;
   79           /**
   80            * Compass-direction south-east (lower right).
   81            */
   82           public static final int SOUTH_EAST = 4;
   83           /**
   84            * Compass-direction south (down).
   85            */
   86           public static final int SOUTH      = 5;
   87           /**
   88            * Compass-direction south-west (lower left).
   89            */
   90           public static final int SOUTH_WEST = 6;
   91           /**
   92            * Compass-direction west (left).
   93            */
   94           public static final int WEST       = 7;
   95           /**
   96            * Compass-direction north west (upper left).
   97            */
   98           public static final int NORTH_WEST = 8;
   99   
  100           //
  101           // These constants specify a horizontal or
  102           // vertical orientation. For example, they are
  103           // used by scrollbars and sliders.
  104           //
  105           /** Horizontal orientation. Used for scrollbars and sliders. */
  106           public static final int HORIZONTAL = 0;
  107           /** Vertical orientation. Used for scrollbars and sliders. */
  108           public static final int VERTICAL   = 1;
  109   
  110           //
  111           // Constants for orientation support, since some languages are
  112           // left-to-right oriented and some are right-to-left oriented.
  113           // This orientation is currently used by buttons and labels.
  114           //
  115           /**
  116            * Identifies the leading edge of text for use with left-to-right
  117            * and right-to-left languages. Used by buttons and labels.
  118            */
  119           public static final int LEADING  = 10;
  120           /**
  121            * Identifies the trailing edge of text for use with left-to-right
  122            * and right-to-left languages. Used by buttons and labels.
  123            */
  124           public static final int TRAILING = 11;
  125           /**
  126            * Identifies the next direction in a sequence.
  127            *
  128            * @since 1.4
  129            */
  130           public static final int NEXT = 12;
  131   
  132           /**
  133            * Identifies the previous direction in a sequence.
  134            *
  135            * @since 1.4
  136            */
  137           public static final int PREVIOUS = 13;
  138   }

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