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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.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;

	import javax.swing.*;
	import javax.swing.plaf.basic.BasicHTML;
	import javax.swing.plaf.basic.BasicToolTipUI;
	import javax.swing.plaf.ComponentUI;
	import javax.swing.text.View;


	/**
	* Provides the Synth L&F UI delegate for
	* {@link javax.swing.JToolTip}.
	*
	* @author Joshua Outwater
	* @since 1.7
	*/
	public class SynthToolTipUI extends BasicToolTipUI
	implements PropertyChangeListener, SynthUI {
	private SynthStyle style;

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

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

	private void updateStyle(JComponent c) {
	SynthContext context = getContext(c, ENABLED);
	style = SynthLookAndFeel.updateStyle(context, this);
	context.dispose();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallDefaults(JComponent c) {
	SynthContext context = getContext(c, ENABLED);
	style.uninstallDefaults(context);
	context.dispose();
	style = null;
	}

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

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

	/**
	* {@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) {
	JComponent comp = ((JToolTip)c).getComponent();

	if (comp != null && !comp.isEnabled()) {
	return DISABLED;
	}
	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().paintToolTipBackground(context,
	g, 0, 0, c.getWidth(), c.getHeight());
	paint(context, g);
	context.dispose();
	}

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

	/**
	* 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.
	*
	* @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) {
	JToolTip tip = (JToolTip)context.getComponent();

	Insets insets = tip.getInsets();
	View v = (View)tip.getClientProperty(BasicHTML.propertyKey);
	if (v != null) {
	Rectangle paintTextR = new Rectangle(insets.left, insets.top,
	tip.getWidth() - (insets.left + insets.right),
	tip.getHeight() - (insets.top + insets.bottom));
	v.paint(g, paintTextR);
	} else {
	g.setColor(context.getStyle().getColor(context,
	ColorType.TEXT_FOREGROUND));
	g.setFont(style.getFont(context));
	context.getStyle().getGraphicsUtils(context).paintText(
	context, g, tip.getTipText(), insets.left, insets.top, -1);
	}
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public Dimension getPreferredSize(JComponent c) {
	SynthContext context = getContext(c);
	Insets insets = c.getInsets();
	Dimension prefSize = new Dimension(insets.left+insets.right,
	insets.top+insets.bottom);
	String text = ((JToolTip)c).getTipText();

	if (text != null) {
	View v = (c != null) ? (View) c.getClientProperty("html") : null;
	if (v != null) {
	prefSize.width += (int) v.getPreferredSpan(View.X_AXIS);
	prefSize.height += (int) v.getPreferredSpan(View.Y_AXIS);
	} else {
	Font font = context.getStyle().getFont(context);
	FontMetrics fm = c.getFontMetrics(font);
	prefSize.width += context.getStyle().getGraphicsUtils(context).
	computeStringWidth(context, font, fm, text);
	prefSize.height += fm.getHeight();
	}
	}
	context.dispose();
	return prefSize;
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void propertyChange(PropertyChangeEvent e) {
	if (SynthLookAndFeel.shouldUpdateStyle(e)) {
	updateStyle((JToolTip)e.getSource());
	}
	String name = e.getPropertyName();
	if (name.equals("tiptext") \|\| "font".equals(name) \|\|
	"foreground".equals(name)) {
	// remove the old html view client property if one
	// existed, and install a new one if the text installed
	// into the JLabel is html source.
	JToolTip tip = ((JToolTip) e.getSource());
	String text = tip.getTipText();
	BasicHTML.updateRenderer(tip, text);
	}
	}
	}

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