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	/*
	* Copyright (c) 2002, 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.synth;

	import java.awt.*;
	import java.beans.*;
	import javax.swing.*;
	import javax.swing.plaf.*;
	import javax.swing.plaf.basic.*;
	import sun.swing.DefaultLookup;

	/**
	* Provides the Synth L&F UI delegate for
	* {@link javax.swing.JOptionPane}.
	*
	* @author James Gosling
	* @author Scott Violet
	* @author Amy Fowler
	* @since 1.7
	*/
	public class SynthOptionPaneUI extends BasicOptionPaneUI implements
	PropertyChangeListener, SynthUI {
	private SynthStyle style;

	/**
	* Creates a new UI object for the given component.
	*
	* @param x component to create UI object for
	* @return the UI object
	*/
	public static ComponentUI createUI(JComponent x) {
	return new SynthOptionPaneUI();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installDefaults() {
	updateStyle(optionPane);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installListeners() {
	super.installListeners();
	optionPane.addPropertyChangeListener(this);
	}

	private void updateStyle(JComponent c) {
	SynthContext context = getContext(c, ENABLED);
	SynthStyle oldStyle = style;

	style = SynthLookAndFeel.updateStyle(context, this);
	if (style != oldStyle) {
	minimumSize = (Dimension)style.get(context,
	"OptionPane.minimumSize");
	if (minimumSize == null) {
	minimumSize = new Dimension(262, 90);
	}
	if (oldStyle != null) {
	uninstallKeyboardActions();
	installKeyboardActions();
	}
	}
	context.dispose();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallDefaults() {
	SynthContext context = getContext(optionPane, ENABLED);

	style.uninstallDefaults(context);
	context.dispose();
	style = null;
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallListeners() {
	super.uninstallListeners();
	optionPane.removePropertyChangeListener(this);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installComponents() {
	optionPane.add(createMessageArea());

	Container separator = createSeparator();
	if (separator != null) {
	optionPane.add(separator);
	SynthContext context = getContext(optionPane, ENABLED);
	optionPane.add(Box.createVerticalStrut(context.getStyle().
	getInt(context, "OptionPane.separatorPadding", 6)));
	context.dispose();
	}
	optionPane.add(createButtonArea());
	optionPane.applyComponentOrientation(optionPane.getComponentOrientation());
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public SynthContext getContext(JComponent c) {
	return getContext(c, getComponentState(c));
	}

	private SynthContext getContext(JComponent c, int state) {
	return SynthContext.getContext(c, style, state);
	}

	private int getComponentState(JComponent c) {
	return SynthLookAndFeel.getComponentState(c);
	}

	/**
	* Notifies this UI delegate to repaint the specified component.
	* This method paints the component background, then calls
	* the {@link #paint(SynthContext,Graphics)} method.
	*
	* <p>In general, this method does not need to be overridden by subclasses.
	* All Look and Feel rendering code should reside in the {@code paint} method.
	*
	* @param g the {@code Graphics} object used for painting
	* @param c the component being painted
	* @see #paint(SynthContext,Graphics)
	*/
	@Override
	public void update(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	SynthLookAndFeel.update(context, g);
	context.getPainter().paintOptionPaneBackground(context,
	g, 0, 0, c.getWidth(), c.getHeight());
	paint(context, g);
	context.dispose();
	}

	/**
	* Paints the specified component according to the Look and Feel.
	* <p>This method is not used by Synth Look and Feel.
	* Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
	*
	* @param g the {@code Graphics} object used for painting
	* @param c the component being painted
	* @see #paint(SynthContext,Graphics)
	*/
	@Override
	public void paint(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	paint(context, g);
	context.dispose();
	}

	/**
	* Paints the specified component. This implementation does nothing.
	*
	* @param context context for the component being painted
	* @param g the {@code Graphics} object used for painting
	* @see #update(Graphics,JComponent)
	*/
	protected void paint(SynthContext context, Graphics g) {
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void paintBorder(SynthContext context, Graphics g, int x,
	int y, int w, int h) {
	context.getPainter().paintOptionPaneBorder(context, g, x, y, w, h);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void propertyChange(PropertyChangeEvent e) {
	if (SynthLookAndFeel.shouldUpdateStyle(e)) {
	updateStyle((JOptionPane)e.getSource());
	}
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected boolean getSizeButtonsToSameWidth() {
	return DefaultLookup.getBoolean(optionPane, this,
	"OptionPane.sameSizeButtons", true);
	}

	/**
	* Called from {@link #installComponents} to create a {@code Container}
	* containing the body of the message. The icon is the created by calling
	* {@link #addIcon}.
	*/
	@Override
	protected Container createMessageArea() {
	JPanel top = new JPanel();
	top.setName("OptionPane.messageArea");
	top.setLayout(new BorderLayout());

	/* Fill the body. */
	Container body = new JPanel(new GridBagLayout());
	Container realBody = new JPanel(new BorderLayout());

	body.setName("OptionPane.body");
	realBody.setName("OptionPane.realBody");

	if (getIcon() != null) {
	JPanel sep = new JPanel();
	sep.setName("OptionPane.separator");
	sep.setPreferredSize(new Dimension(15, 1));
	realBody.add(sep, BorderLayout.BEFORE_LINE_BEGINS);
	}
	realBody.add(body, BorderLayout.CENTER);

	GridBagConstraints cons = new GridBagConstraints();
	cons.gridx = cons.gridy = 0;
	cons.gridwidth = GridBagConstraints.REMAINDER;
	cons.gridheight = 1;

	SynthContext context = getContext(optionPane, ENABLED);
	cons.anchor = context.getStyle().getInt(context,
	"OptionPane.messageAnchor", GridBagConstraints.CENTER);
	context.dispose();

	cons.insets = new Insets(0,0,3,0);

	addMessageComponents(body, cons, getMessage(),
	getMaxCharactersPerLineCount(), false);
	top.add(realBody, BorderLayout.CENTER);

	addIcon(top);
	return top;
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected Container createSeparator() {
	JSeparator separator = new JSeparator(SwingConstants.HORIZONTAL);

	separator.setName("OptionPane.separator");
	return separator;
	}
	}

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