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	/*
	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/
	package javax.swing.plaf.basic;

	import javax.swing.ComboBoxEditor;
	import javax.swing.JTextField;
	import javax.swing.border.Border;
	import java.awt.Component;
	import java.awt.event.*;

	import java.lang.reflect.Method;

	import sun.reflect.misc.MethodUtil;

	/**
	* The default editor for editable combo boxes. The editor is implemented as a JTextField.
	*
	* @author Arnaud Weber
	* @author Mark Davidson
	*/
	public class BasicComboBoxEditor implements ComboBoxEditor,FocusListener {
	protected JTextField editor;
	private Object oldValue;

	public BasicComboBoxEditor() {
	editor = createEditorComponent();
	}

	public Component getEditorComponent() {
	return editor;
	}

	/**
	* Creates the internal editor component. Override this to provide
	* a custom implementation.
	*
	* @return a new editor component
	* @since 1.6
	*/
	protected JTextField createEditorComponent() {
	JTextField editor = new BorderlessTextField("",9);
	editor.setBorder(null);
	return editor;
	}

	/**
	* Sets the item that should be edited.
	*
	* @param anObject the displayed value of the editor
	*/
	public void setItem(Object anObject) {
	String text;

	if ( anObject != null ) {
	text = anObject.toString();
	if (text == null) {
	text = "";
	}
	oldValue = anObject;
	} else {
	text = "";
	}
	// workaround for 4530952
	if (! text.equals(editor.getText())) {
	editor.setText(text);
	}
	}

	public Object getItem() {
	Object newValue = editor.getText();

	if (oldValue != null && !(oldValue instanceof String)) {
	// The original value is not a string. Should return the value in it's
	// original type.
	if (newValue.equals(oldValue.toString())) {
	return oldValue;
	} else {
	// Must take the value from the editor and get the value and cast it to the new type.
	Class<?> cls = oldValue.getClass();
	try {
	Method method = MethodUtil.getMethod(cls, "valueOf", new Class[]{String.class});
	newValue = MethodUtil.invoke(method, oldValue, new Object[] { editor.getText()});
	} catch (Exception ex) {
	// Fail silently and return the newValue (a String object)
	}
	}
	}
	return newValue;
	}

	public void selectAll() {
	editor.selectAll();
	editor.requestFocus();
	}

	// This used to do something but now it doesn't. It couldn't be
	// removed because it would be an API change to do so.
	public void focusGained(FocusEvent e) {}

	// This used to do something but now it doesn't. It couldn't be
	// removed because it would be an API change to do so.
	public void focusLost(FocusEvent e) {}

	public void addActionListener(ActionListener l) {
	editor.addActionListener(l);
	}

	public void removeActionListener(ActionListener l) {
	editor.removeActionListener(l);
	}

	static class BorderlessTextField extends JTextField {
	public BorderlessTextField(String value,int n) {
	super(value,n);
	}

	// workaround for 4530952
	public void setText(String s) {
	if (getText().equals(s)) {
	return;
	}
	super.setText(s);
	}

	public void setBorder(Border b) {
	if (!(b instanceof UIResource)) {
	super.setBorder(b);
	}
	}
	}

	/**
	* A subclass of BasicComboBoxEditor that implements UIResource.
	* BasicComboBoxEditor doesn't implement UIResource
	* directly so that applications can safely override the
	* cellRenderer property with BasicListCellRenderer subclasses.
	* <p>
	* <strong>Warning:</strong>
	* Serialized objects of this class will not be compatible with
	* future Swing releases. The current serialization support is
	* appropriate for short term storage or RMI between applications running
	* the same version of Swing. As of 1.4, support for long term storage
	* of all JavaBeans™
	* has been added to the <code>java.beans</code> package.
	* Please see {@link java.beans.XMLEncoder}.
	*/
	public static class UIResource extends BasicComboBoxEditor
	implements javax.swing.plaf.UIResource {
	}
	}

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