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javax.swing.plaf.basic

Class BasicTabbedPaneUI.FocusHandler

Enclosing Class:
BasicTabbedPaneUI
Implemented Interfaces:
EventListener, FocusListener
public class BasicTabbedPaneUI.FocusHandler
extends FocusAdapter
A helper class that handles focus.

The purpose of this class is to implement a more flexible focus handling for the tabbed pane, which is used to determine whether the focus indicator should be painted or not. When in scrolling layout mode the area containing the tabs is a scrollpane, so simply testing whether the tabbed pane has the focus does not work.

The FocusHandler is installed on the scrollpane and the tabbed pane and sets the variable hasFocus to false only when both components do not hold the focus.

Method Summary

void
focusGained(FocusEvent e)
This method is called when the component gains focus.
void
focusLost(FocusEvent e)
This method is called when the component loses focus.

Methods inherited from class java.awt.event.FocusAdapter

focusGained, focusLost

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

focusGained

public void focusGained(FocusEvent e)
This method is called when the component gains focus.
Specified by:
focusGained in interface FocusListener
Overrides:
focusGained in interface FocusAdapter
Parameters:
e - The FocusEvent.

focusLost

public void focusLost(FocusEvent e)
This method is called when the component loses focus.
Specified by:
focusLost in interface FocusListener
Overrides:
focusLost in interface FocusAdapter
Parameters:
e - The FocusEvent.
BasicTabbedPaneUI.java -- Copyright (C) 2002, 2004, 2005, 2006 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.

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