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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 javax.swing.*;
	import javax.swing.text.*;
	import javax.swing.plaf.*;
	import java.beans.PropertyChangeEvent;
	import java.awt.*;

	/**
	* Provides the look and feel for a styled text editor in the
	* Synth look and feel.
	* <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 Shannon Hickey
	* @since 1.7
	*/
	public class SynthTextPaneUI extends SynthEditorPaneUI {

	/**
	* Creates a UI for the JTextPane.
	*
	* @param c the JTextPane object
	* @return the UI object
	*/
	public static ComponentUI createUI(JComponent c) {
	return new SynthTextPaneUI();
	}

	/**
	* Fetches the name used as a key to lookup properties through the
	* UIManager. This is used as a prefix to all the standard
	* text properties.
	*
	* @return the name ("TextPane")
	*/
	@Override
	protected String getPropertyPrefix() {
	return "TextPane";
	}

	/**
	* Installs the UI for a component. This does the following
	* things.
	* <ol>
	* <li>
	* Sets opaqueness of the associated component according to its style,
	* if the opaque property has not already been set by the client program.
	* <li>
	* Installs the default caret and highlighter into the
	* associated component. These properties are only set if their
	* current value is either {@code null} or an instance of
	* {@link UIResource}.
	* <li>
	* Attaches to the editor and model. If there is no
	* model, a default one is created.
	* <li>
	* Creates the view factory and the view hierarchy used
	* to represent the model.
	* </ol>
	*
	* @param c the editor component
	* @see javax.swing.plaf.basic.BasicTextUI#installUI
	* @see ComponentUI#installUI
	*/
	@Override
	public void installUI(JComponent c) {
	super.installUI(c);
	updateForeground(c.getForeground());
	updateFont(c.getFont());
	}

	/**
	* This method gets called when a bound property is changed
	* on the associated JTextComponent. This is a hook
	* which UI implementations may change to reflect how the
	* UI displays bound properties of JTextComponent subclasses.
	* If the font, foreground or document has changed, the
	* the appropriate property is set in the default style of
	* the document.
	*
	* @param evt the property change event
	*/
	@Override
	protected void propertyChange(PropertyChangeEvent evt) {
	super.propertyChange(evt);

	String name = evt.getPropertyName();

	if (name.equals("foreground")) {
	updateForeground((Color)evt.getNewValue());
	} else if (name.equals("font")) {
	updateFont((Font)evt.getNewValue());
	} else if (name.equals("document")) {
	JComponent comp = getComponent();
	updateForeground(comp.getForeground());
	updateFont(comp.getFont());
	}
	}

	/**
	* Update the color in the default style of the document.
	*
	* @param color the new color to use or null to remove the color attribute
	* from the document's style
	*/
	private void updateForeground(Color color) {
	StyledDocument doc = (StyledDocument)getComponent().getDocument();
	Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);

	if (style == null) {
	return;
	}

	if (color == null) {
	style.removeAttribute(StyleConstants.Foreground);
	} else {
	StyleConstants.setForeground(style, color);
	}
	}

	/**
	* Update the font in the default style of the document.
	*
	* @param font the new font to use or null to remove the font attribute
	* from the document's style
	*/
	private void updateFont(Font font) {
	StyledDocument doc = (StyledDocument)getComponent().getDocument();
	Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);

	if (style == null) {
	return;
	}

	if (font == null) {
	style.removeAttribute(StyleConstants.FontFamily);
	style.removeAttribute(StyleConstants.FontSize);
	style.removeAttribute(StyleConstants.Bold);
	style.removeAttribute(StyleConstants.Italic);
	} else {
	StyleConstants.setFontFamily(style, font.getName());
	StyleConstants.setFontSize(style, font.getSize());
	StyleConstants.setBold(style, font.isBold());
	StyleConstants.setItalic(style, font.isItalic());
	}
	}

	@Override
	void paintBackground(SynthContext context, Graphics g, JComponent c) {
	context.getPainter().paintTextPaneBackground(context, g, 0, 0,
	c.getWidth(), c.getHeight());
	}

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

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