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	/*
	* Copyright (c) 1998, 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.metal;

	import sun.swing.SwingUtilities2;
	import sun.awt.AppContext;

	import javax.swing.*;
	import javax.swing.border.*;
	import javax.swing.plaf.basic.*;
	import java.awt.*;
	import java.awt.event.*;
	import java.beans.*;
	import javax.swing.plaf.*;

	/**
	* MetalButtonUI implementation
	* <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}.
	*
	* @author Tom Santos
	*/
	public class MetalButtonUI extends BasicButtonUI {
	// NOTE: These are not really needed, but at this point we can't pull
	// them. Their values are updated purely for historical reasons.
	protected Color focusColor;
	protected Color selectColor;
	protected Color disabledTextColor;

	private static final Object METAL_BUTTON_UI_KEY = new Object();

	// ********************************
	// Create PLAF
	// ********************************
	public static ComponentUI createUI(JComponent c) {
	AppContext appContext = AppContext.getAppContext();
	MetalButtonUI metalButtonUI =
	(MetalButtonUI) appContext.get(METAL_BUTTON_UI_KEY);
	if (metalButtonUI == null) {
	metalButtonUI = new MetalButtonUI();
	appContext.put(METAL_BUTTON_UI_KEY, metalButtonUI);
	}
	return metalButtonUI;
	}

	// ********************************
	// Install
	// ********************************
	public void installDefaults(AbstractButton b) {
	super.installDefaults(b);
	}

	public void uninstallDefaults(AbstractButton b) {
	super.uninstallDefaults(b);
	}

	// ********************************
	// Create Listeners
	// ********************************
	protected BasicButtonListener createButtonListener(AbstractButton b) {
	return super.createButtonListener(b);
	}


	// ********************************
	// Default Accessors
	// ********************************
	protected Color getSelectColor() {
	selectColor = UIManager.getColor(getPropertyPrefix() + "select");
	return selectColor;
	}

	protected Color getDisabledTextColor() {
	disabledTextColor = UIManager.getColor(getPropertyPrefix() +
	"disabledText");
	return disabledTextColor;
	}

	protected Color getFocusColor() {
	focusColor = UIManager.getColor(getPropertyPrefix() + "focus");
	return focusColor;
	}

	// ********************************
	// Paint
	// ********************************
	/**
	* If necessary paints the background of the component, then
	* invokes <code>paint</code>.
	*
	* @param g Graphics to paint to
	* @param c JComponent painting on
	* @throws NullPointerException if <code>g</code> or <code>c</code> is
	* null
	* @see javax.swing.plaf.ComponentUI#update
	* @see javax.swing.plaf.ComponentUI#paint
	* @since 1.5
	*/
	public void update(Graphics g, JComponent c) {
	AbstractButton button = (AbstractButton)c;
	if ((c.getBackground() instanceof UIResource) &&
	button.isContentAreaFilled() && c.isEnabled()) {
	ButtonModel model = button.getModel();
	if (!MetalUtils.isToolBarButton(c)) {
	if (!model.isArmed() && !model.isPressed() &&
	MetalUtils.drawGradient(
	c, g, "Button.gradient", 0, 0, c.getWidth(),
	c.getHeight(), true)) {
	paint(g, c);
	return;
	}
	}
	else if (model.isRollover() && MetalUtils.drawGradient(
	c, g, "Button.gradient", 0, 0, c.getWidth(),
	c.getHeight(), true)) {
	paint(g, c);
	return;
	}
	}
	super.update(g, c);
	}

	protected void paintButtonPressed(Graphics g, AbstractButton b) {
	if ( b.isContentAreaFilled() ) {
	Dimension size = b.getSize();
	g.setColor(getSelectColor());
	g.fillRect(0, 0, size.width, size.height);
	}
	}

	protected void paintFocus(Graphics g, AbstractButton b,
	Rectangle viewRect, Rectangle textRect, Rectangle iconRect){

	Rectangle focusRect = new Rectangle();
	String text = b.getText();
	boolean isIcon = b.getIcon() != null;

	// If there is text
	if ( text != null && !text.equals( "" ) ) {
	if ( !isIcon ) {
	focusRect.setBounds( textRect );
	}
	else {
	focusRect.setBounds( iconRect.union( textRect ) );
	}
	}
	// If there is an icon and no text
	else if ( isIcon ) {
	focusRect.setBounds( iconRect );
	}

	g.setColor(getFocusColor());
	g.drawRect((focusRect.x-1), (focusRect.y-1),
	focusRect.width+1, focusRect.height+1);

	}


	protected void paintText(Graphics g, JComponent c, Rectangle textRect, String text) {
	AbstractButton b = (AbstractButton) c;
	ButtonModel model = b.getModel();
	FontMetrics fm = SwingUtilities2.getFontMetrics(c, g);
	int mnemIndex = b.getDisplayedMnemonicIndex();

	/* Draw the Text */
	if(model.isEnabled()) {
	/*** paint the text normally */
	g.setColor(b.getForeground());
	}
	else {
	/* paint the text disabled */
	g.setColor(getDisabledTextColor());
	}
	SwingUtilities2.drawStringUnderlineCharAt(c, g,text,mnemIndex,
	textRect.x, textRect.y + fm.getAscent());
	}
	}

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