Subversion Repositories openrisc

/* NavigationFilter.java --

   Copyright (C) 2003, 2004 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath 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, or (at your option)

any later version.

GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package javax.swing.text;

public class NavigationFilter

{

  public abstract static class FilterBypass

  {

    public FilterBypass()

    {

      // Do nothing here.

    }

    public abstract Caret getCaret();

    public abstract void moveDot(int dot, Position.Bias bias);

    public abstract void setDot(int dot, Position.Bias bias);

  }

  public NavigationFilter()

  {

    // Do nothing here.

  }

  public void moveDot(NavigationFilter.FilterBypass fb, int dot,

                      Position.Bias bias)

  {

    fb.moveDot(dot, bias);

  }

  public void setDot(NavigationFilter.FilterBypass fb, int dot,

                     Position.Bias bias)

  {

    fb.setDot(dot, bias);

  }

  /**

   * Returns the next visual position in the specified direction at which one

   * would place a caret. The default implementation forwards to the text

   * component's root view. Subclasses may wish to restrict that more.

   *

   * @param c the text component

   * @param pos the current model position

   * @param bias the bias of <code>pos</code>

   * @param dir the direction, one of {@link javax.swing.SwingConstants#NORTH},

   *        {@link javax.swing.SwingConstants#SOUTH},

   *        {@link javax.swing.SwingConstants#WEST} or

   *        {@link javax.swing.SwingConstants#EAST}

   * @param retBias the bias of the returned position

   *

   * @return the next model location to place the caret

   *

   * @throws BadLocationException when <code>pos</code> is not a valid model

   *         position

   */

  public int getNextVisualPositionFrom(JTextComponent c, int pos,

                                       Position.Bias bias, int dir,

                                       Position.Bias[] retBias)

    throws BadLocationException

  {

    return c.getUI().getNextVisualPositionFrom(c, pos, bias, dir, retBias);

  }

}