libjava/javax/accessibility/AccessibleExtendedTable.java

   1 /* AccessibleExtendedTable.java -- aids in extended table access
   2    Copyright (C) 2002 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38 package javax.accessibility;
  39
  40 /**
  41  * Objects which present 2-D tables with the extension of a flat address
  42  * space should implement this interface.  Accessibility software can use the
  43  * implementations of this interface to better manipulate the table.
  44  *
  45  * <p>The <code>AccessibleContext.getAccessibleTable()</code> method
  46  * should return an instance of this interface only when it is supported.
  47  *
  48  * @author Eric Blake <ebb9@email.byu.edu>
  49  * @see Accessible
  50  * @see AccessibleContext
  51  * @see AccessibleContext#getAccessibleTable()
  52  * @since 1.2
  53  * @status updated to 1.4
  54  */
  55 public interface AccessibleExtendedTable extends AccessibleTable
  56 {
  57   /**
  58    * Returns the row number of an index in the table.
  59    *
  60    * @param index the cell index, in row-major form from (0,0)
  61    * @return the row number, or -1 if out of bounds
  62    */
  63   int getAccessibleRow(int index);
  64
  65   /**
  66    * Returns the column number of an index in the table.
  67    *
  68    * @param index the cell index, in row-major form from (0,0)
  69    * @return the column number, or -1 if out of bounds
  70    */
  71   int getAccessibleColumn(int index);
  72
  73   /**
  74    * Returns the cell number for a row-major address from (0,0).
  75    *
  76    * @param r the row
  77    * @param c the column
  78    * @return the cell index
  79    */
  80    int getAccessibleIndex(int r, int c);
  81 } // interface AccessibleExtendedTable