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	/*
	* Copyright (c) 2003, 2010, 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.Color;
	import java.awt.Component;
	import java.awt.Font;
	import java.awt.Graphics;
	import java.awt.Image;
	import java.awt.Insets;
	import java.awt.Toolkit;
	import java.io.BufferedInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.net.URLClassLoader;
	import java.text.ParseException;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Locale;
	import java.util.Map;
	import java.util.StringTokenizer;
	import java.util.regex.PatternSyntaxException;

	import javax.swing.ImageIcon;
	import javax.swing.JSplitPane;
	import javax.swing.SwingConstants;
	import javax.swing.UIDefaults;
	import javax.swing.plaf.ColorUIResource;
	import javax.swing.plaf.DimensionUIResource;
	import javax.swing.plaf.FontUIResource;
	import javax.swing.plaf.InsetsUIResource;
	import javax.swing.plaf.UIResource;
	import javax.xml.parsers.ParserConfigurationException;
	import javax.xml.parsers.SAXParser;
	import javax.xml.parsers.SAXParserFactory;

	import org.xml.sax.Attributes;
	import org.xml.sax.InputSource;
	import org.xml.sax.Locator;
	import org.xml.sax.SAXException;
	import org.xml.sax.SAXParseException;
	import org.xml.sax.helpers.DefaultHandler;

	import com.sun.beans.decoder.DocumentHandler;
	import sun.reflect.misc.ReflectUtil;

	class SynthParser extends DefaultHandler {
	//
	// Known element names
	//
	private static final String ELEMENT_SYNTH = "synth";
	private static final String ELEMENT_STYLE = "style";
	private static final String ELEMENT_STATE = "state";
	private static final String ELEMENT_FONT = "font";
	private static final String ELEMENT_COLOR = "color";
	private static final String ELEMENT_IMAGE_PAINTER = "imagePainter";
	private static final String ELEMENT_PAINTER = "painter";
	private static final String ELEMENT_PROPERTY = "property";
	private static final String ELEMENT_SYNTH_GRAPHICS = "graphicsUtils";
	private static final String ELEMENT_IMAGE_ICON = "imageIcon";
	private static final String ELEMENT_BIND = "bind";
	private static final String ELEMENT_BIND_KEY = "bindKey";
	private static final String ELEMENT_INSETS = "insets";
	private static final String ELEMENT_OPAQUE = "opaque";
	private static final String ELEMENT_DEFAULTS_PROPERTY =
	"defaultsProperty";
	private static final String ELEMENT_INPUT_MAP = "inputMap";

	//
	// Known attribute names
	//
	private static final String ATTRIBUTE_ACTION = "action";
	private static final String ATTRIBUTE_ID = "id";
	private static final String ATTRIBUTE_IDREF = "idref";
	private static final String ATTRIBUTE_CLONE = "clone";
	private static final String ATTRIBUTE_VALUE = "value";
	private static final String ATTRIBUTE_NAME = "name";
	private static final String ATTRIBUTE_STYLE = "style";
	private static final String ATTRIBUTE_SIZE = "size";
	private static final String ATTRIBUTE_TYPE = "type";
	private static final String ATTRIBUTE_TOP = "top";
	private static final String ATTRIBUTE_LEFT = "left";
	private static final String ATTRIBUTE_BOTTOM = "bottom";
	private static final String ATTRIBUTE_RIGHT = "right";
	private static final String ATTRIBUTE_KEY = "key";
	private static final String ATTRIBUTE_SOURCE_INSETS = "sourceInsets";
	private static final String ATTRIBUTE_DEST_INSETS = "destinationInsets";
	private static final String ATTRIBUTE_PATH = "path";
	private static final String ATTRIBUTE_STRETCH = "stretch";
	private static final String ATTRIBUTE_PAINT_CENTER = "paintCenter";
	private static final String ATTRIBUTE_METHOD = "method";
	private static final String ATTRIBUTE_DIRECTION = "direction";
	private static final String ATTRIBUTE_CENTER = "center";

	/**
	* Lazily created, used for anything we don't understand.
	*/
	private DocumentHandler _handler;

	/**
	* Indicates the depth of how many elements we've encountered but don't
	* understand. This is used when forwarding to beans persistance to know
	* when we hsould stop forwarding.
	*/
	private int _depth;

	/**
	* Factory that new styles are added to.
	*/
	private DefaultSynthStyleFactory _factory;

	/**
	* Array of state infos for the current style. These are pushed to the
	* style when </style> is received.
	*/
	private List<ParsedSynthStyle.StateInfo> _stateInfos;

	/**
	* Current style.
	*/
	private ParsedSynthStyle _style;

	/**
	* Current state info.
	*/
	private ParsedSynthStyle.StateInfo _stateInfo;

	/**
	* Bindings for the current InputMap
	*/
	private List<String> _inputMapBindings;

	/**
	* ID for the input map. This is cached as
	* the InputMap is created AFTER the inputMapProperty has ended.
	*/
	private String _inputMapID;

	/**
	* Object references outside the scope of persistance.
	*/
	private Map<String,Object> _mapping;

	/**
	* Based URL used to resolve paths.
	*/
	private URL _urlResourceBase;

	/**
	* Based class used to resolve paths.
	*/
	private Class<?> _classResourceBase;

	/**
	* List of ColorTypes. This is populated in startColorType.
	*/
	private List<ColorType> _colorTypes;

	/**
	* defaultsPropertys are placed here.
	*/
	private Map<String, Object> _defaultsMap;

	/**
	* List of SynthStyle.Painters that will be applied to the current style.
	*/
	private List<ParsedSynthStyle.PainterInfo> _stylePainters;

	/**
	* List of SynthStyle.Painters that will be applied to the current state.
	*/
	private List<ParsedSynthStyle.PainterInfo> _statePainters;

	SynthParser() {
	_mapping = new HashMap<String,Object>();
	_stateInfos = new ArrayList<ParsedSynthStyle.StateInfo>();
	_colorTypes = new ArrayList<ColorType>();
	_inputMapBindings = new ArrayList<String>();
	_stylePainters = new ArrayList<ParsedSynthStyle.PainterInfo>();
	_statePainters = new ArrayList<ParsedSynthStyle.PainterInfo>();
	}

	/**
	* Parses a set of styles from <code>inputStream</code>, adding the
	* resulting styles to the passed in DefaultSynthStyleFactory.
	* Resources are resolved either from a URL or from a Class. When calling
	* this method, one of the URL or the Class must be null but not both at
	* the same time.
	*
	* @param inputStream XML document containing the styles to read
	* @param factory DefaultSynthStyleFactory that new styles are added to
	* @param urlResourceBase the URL used to resolve any resources, such as Images
	* @param classResourceBase the Class used to resolve any resources, such as Images
	* @param defaultsMap Map that UIDefaults properties are placed in
	*/
	public void parse(InputStream inputStream,
	DefaultSynthStyleFactory factory,
	URL urlResourceBase, Class<?> classResourceBase,
	Map<String, Object> defaultsMap)
	throws ParseException, IllegalArgumentException {
	if (inputStream == null \|\| factory == null \|\|
	(urlResourceBase == null && classResourceBase == null)) {
	throw new IllegalArgumentException(
	"You must supply an InputStream, StyleFactory and Class or URL");
	}

	assert(!(urlResourceBase != null && classResourceBase != null));

	_factory = factory;
	_classResourceBase = classResourceBase;
	_urlResourceBase = urlResourceBase;
	_defaultsMap = defaultsMap;
	try {
	try {
	SAXParser saxParser = SAXParserFactory.newInstance().
	newSAXParser();
	saxParser.parse(new BufferedInputStream(inputStream), this);
	} catch (ParserConfigurationException e) {
	throw new ParseException("Error parsing: " + e, 0);
	}
	catch (SAXException se) {
	throw new ParseException("Error parsing: " + se + " " +
	se.getException(), 0);
	}
	catch (IOException ioe) {
	throw new ParseException("Error parsing: " + ioe, 0);
	}
	} finally {
	reset();
	}
	}

	/**
	* Returns the path to a resource.
	*/
	private URL getResource(String path) {
	if (_classResourceBase != null) {
	return _classResourceBase.getResource(path);
	} else {
	try {
	return new URL(_urlResourceBase, path);
	} catch (MalformedURLException mue) {
	return null;
	}
	}
	}

	/**
	* Clears our internal state.
	*/
	private void reset() {
	_handler = null;
	_depth = 0;
	_mapping.clear();
	_stateInfos.clear();
	_colorTypes.clear();
	_statePainters.clear();
	_stylePainters.clear();
	}

	/**
	* Returns true if we are forwarding to persistance.
	*/
	private boolean isForwarding() {
	return (_depth > 0);
	}

	/**
	* Handles beans persistance.
	*/
	private DocumentHandler getHandler() {
	if (_handler == null) {
	_handler = new DocumentHandler();
	if (_urlResourceBase != null) {
	// getHandler() is never called before parse() so it is safe
	// to create a URLClassLoader with _resourceBase.
	//
	// getResource(".") is called to ensure we have the directory
	// containing the resources in the case the resource base is a
	// .class file.
	URL[] urls = new URL[] { getResource(".") };
	ClassLoader parent = Thread.currentThread().getContextClassLoader();
	ClassLoader urlLoader = new URLClassLoader(urls, parent);
	_handler.setClassLoader(urlLoader);
	} else {
	_handler.setClassLoader(_classResourceBase.getClassLoader());
	}

	for (String key : _mapping.keySet()) {
	_handler.setVariable(key, _mapping.get(key));
	}
	}
	return _handler;
	}

	/**
	* If <code>value</code> is an instance of <code>type</code> it is
	* returned, otherwise a SAXException is thrown.
	*/
	private Object checkCast(Object value, Class type) throws SAXException {
	if (!type.isInstance(value)) {
	throw new SAXException("Expected type " + type + " got " +
	value.getClass());
	}
	return value;
	}

	/**
	* Returns an object created with id=key. If the object is not of
	* type type, this will throw an exception.
	*/
	private Object lookup(String key, Class type) throws SAXException {
	Object value;
	if (_handler != null) {
	if (_handler.hasVariable(key)) {
	return checkCast(_handler.getVariable(key), type);
	}
	}
	value = _mapping.get(key);
	if (value == null) {
	throw new SAXException("ID " + key + " has not been defined");
	}
	return checkCast(value, type);
	}

	/**
	* Registers an object by name. This will throw an exception if an
	* object has already been registered under the given name.
	*/
	private void register(String key, Object value) throws SAXException {
	if (key != null) {
	if (_mapping.get(key) != null \|\|
	(_handler != null && _handler.hasVariable(key))) {
	throw new SAXException("ID " + key + " is already defined");
	}
	if (_handler != null) {
	_handler.setVariable(key, value);
	}
	else {
	_mapping.put(key, value);
	}
	}
	}

	/**
	* Convenience method to return the next int, or throw if there are no
	* more valid ints.
	*/
	private int nextInt(StringTokenizer tok, String errorMsg) throws
	SAXException {
	if (!tok.hasMoreTokens()) {
	throw new SAXException(errorMsg);
	}
	try {
	return Integer.parseInt(tok.nextToken());
	} catch (NumberFormatException nfe) {
	throw new SAXException(errorMsg);
	}
	}

	/**
	* Convenience method to return an Insets object.
	*/
	private Insets parseInsets(String insets, String errorMsg) throws
	SAXException {
	StringTokenizer tokenizer = new StringTokenizer(insets);
	return new Insets(nextInt(tokenizer, errorMsg),
	nextInt(tokenizer, errorMsg),
	nextInt(tokenizer, errorMsg),
	nextInt(tokenizer, errorMsg));
	}



	//
	// The following methods are invoked from startElement/stopElement
	//

	private void startStyle(Attributes attributes) throws SAXException {
	String id = null;

	_style = null;
	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);
	if (key.equals(ATTRIBUTE_CLONE)) {
	_style = (ParsedSynthStyle)((ParsedSynthStyle)lookup(
	attributes.getValue(i), ParsedSynthStyle.class)).
	clone();
	}
	else if (key.equals(ATTRIBUTE_ID)) {
	id = attributes.getValue(i);
	}
	}
	if (_style == null) {
	_style = new ParsedSynthStyle();
	}
	register(id, _style);
	}

	private void endStyle() {
	int size = _stylePainters.size();
	if (size > 0) {
	_style.setPainters(_stylePainters.toArray(new ParsedSynthStyle.PainterInfo[size]));
	_stylePainters.clear();
	}
	size = _stateInfos.size();
	if (size > 0) {
	_style.setStateInfo(_stateInfos.toArray(new ParsedSynthStyle.StateInfo[size]));
	_stateInfos.clear();
	}
	_style = null;
	}

	private void startState(Attributes attributes) throws SAXException {
	ParsedSynthStyle.StateInfo stateInfo = null;
	int state = 0;
	String id = null;

	_stateInfo = null;
	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);
	if (key.equals(ATTRIBUTE_ID)) {
	id = attributes.getValue(i);
	}
	else if (key.equals(ATTRIBUTE_IDREF)) {
	_stateInfo = (ParsedSynthStyle.StateInfo)lookup(
	attributes.getValue(i), ParsedSynthStyle.StateInfo.class);
	}
	else if (key.equals(ATTRIBUTE_CLONE)) {
	_stateInfo = (ParsedSynthStyle.StateInfo)((ParsedSynthStyle.
	StateInfo)lookup(attributes.getValue(i),
	ParsedSynthStyle.StateInfo.class)).clone();
	}
	else if (key.equals(ATTRIBUTE_VALUE)) {
	StringTokenizer tokenizer = new StringTokenizer(
	attributes.getValue(i));
	while (tokenizer.hasMoreTokens()) {
	String stateString = tokenizer.nextToken().toUpperCase().
	intern();
	if (stateString == "ENABLED") {
	state \|= SynthConstants.ENABLED;
	}
	else if (stateString == "MOUSE_OVER") {
	state \|= SynthConstants.MOUSE_OVER;
	}
	else if (stateString == "PRESSED") {
	state \|= SynthConstants.PRESSED;
	}
	else if (stateString == "DISABLED") {
	state \|= SynthConstants.DISABLED;
	}
	else if (stateString == "FOCUSED") {
	state \|= SynthConstants.FOCUSED;
	}
	else if (stateString == "SELECTED") {
	state \|= SynthConstants.SELECTED;
	}
	else if (stateString == "DEFAULT") {
	state \|= SynthConstants.DEFAULT;
	}
	else if (stateString != "AND") {
	throw new SAXException("Unknown state: " + state);
	}
	}
	}
	}
	if (_stateInfo == null) {
	_stateInfo = new ParsedSynthStyle.StateInfo();
	}
	_stateInfo.setComponentState(state);
	register(id, _stateInfo);
	_stateInfos.add(_stateInfo);
	}

	private void endState() {
	int size = _statePainters.size();
	if (size > 0) {
	_stateInfo.setPainters(_statePainters.toArray(new ParsedSynthStyle.PainterInfo[size]));
	_statePainters.clear();
	}
	_stateInfo = null;
	}

	private void startFont(Attributes attributes) throws SAXException {
	Font font = null;
	int style = Font.PLAIN;
	int size = 0;
	String id = null;
	String name = null;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);
	if (key.equals(ATTRIBUTE_ID)) {
	id = attributes.getValue(i);
	}
	else if (key.equals(ATTRIBUTE_IDREF)) {
	font = (Font)lookup(attributes.getValue(i), Font.class);
	}
	else if (key.equals(ATTRIBUTE_NAME)) {
	name = attributes.getValue(i);
	}
	else if (key.equals(ATTRIBUTE_SIZE)) {
	try {
	size = Integer.parseInt(attributes.getValue(i));
	} catch (NumberFormatException nfe) {
	throw new SAXException("Invalid font size: " +
	attributes.getValue(i));
	}
	}
	else if (key.equals(ATTRIBUTE_STYLE)) {
	StringTokenizer tok = new StringTokenizer(
	attributes.getValue(i));
	while (tok.hasMoreTokens()) {
	String token = tok.nextToken().intern();
	if (token == "BOLD") {
	style = ((style \| Font.PLAIN) ^ Font.PLAIN) \|
	Font.BOLD;
	}
	else if (token == "ITALIC") {
	style \|= Font.ITALIC;
	}
	}
	}
	}
	if (font == null) {
	if (name == null) {
	throw new SAXException("You must define a name for the font");
	}
	if (size == 0) {
	throw new SAXException("You must define a size for the font");
	}
	font = new FontUIResource(name, style, size);
	}
	else if (name != null \|\| size != 0 \|\| style != Font.PLAIN) {
	throw new SAXException("Name, size and style are not for use " +
	"with idref");
	}
	register(id, font);
	if (_stateInfo != null) {
	_stateInfo.setFont(font);
	}
	else if (_style != null) {
	_style.setFont(font);
	}
	}

	private void startColor(Attributes attributes) throws SAXException {
	Color color = null;
	String id = null;

	_colorTypes.clear();
	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);
	if (key.equals(ATTRIBUTE_ID)) {
	id = attributes.getValue(i);
	}
	else if (key.equals(ATTRIBUTE_IDREF)) {
	color = (Color)lookup(attributes.getValue(i), Color.class);
	}
	else if (key.equals(ATTRIBUTE_NAME)) {
	}
	else if (key.equals(ATTRIBUTE_VALUE)) {
	String value = attributes.getValue(i);

	if (value.startsWith("#")) {
	try {
	int argb;
	boolean hasAlpha;

	int length = value.length();
	if (length < 8) {
	// Just RGB, or some portion of it.
	argb = Integer.decode(value);
	hasAlpha = false;
	} else if (length == 8) {
	// Single character alpha: #ARRGGBB.
	argb = Integer.decode(value);
	hasAlpha = true;
	} else if (length == 9) {
	// Color has alpha and is of the form
	// #AARRGGBB.
	// The following split decoding is mandatory due to
	// Integer.decode() behavior which won't decode
	// hexadecimal values higher than #7FFFFFFF.
	// Thus, when an alpha channel is detected, it is
	// decoded separately from the RGB channels.
	int rgb = Integer.decode('#' +
	value.substring(3, 9));
	int a = Integer.decode(value.substring(0, 3));
	argb = (a << 24) \| rgb;
	hasAlpha = true;
	} else {
	throw new SAXException("Invalid Color value: "
	+ value);
	}

	color = new ColorUIResource(new Color(argb, hasAlpha));
	} catch (NumberFormatException nfe) {
	throw new SAXException("Invalid Color value: " +value);
	}
	}
	else {
	try {
	color = new ColorUIResource((Color)Color.class.
	getField(value.toUpperCase()).get(Color.class));
	} catch (NoSuchFieldException nsfe) {
	throw new SAXException("Invalid color name: " + value);
	} catch (IllegalAccessException iae) {
	throw new SAXException("Invalid color name: " + value);
	}
	}
	}
	else if (key.equals(ATTRIBUTE_TYPE)) {
	StringTokenizer tokenizer = new StringTokenizer(
	attributes.getValue(i));
	while (tokenizer.hasMoreTokens()) {
	String typeName = tokenizer.nextToken();
	int classIndex = typeName.lastIndexOf('.');
	Class typeClass;

	if (classIndex == -1) {
	typeClass = ColorType.class;
	classIndex = 0;
	}
	else {
	try {
	typeClass = ReflectUtil.forName(typeName.substring(
	0, classIndex));
	} catch (ClassNotFoundException cnfe) {
	throw new SAXException("Unknown class: " +
	typeName.substring(0, classIndex));
	}
	classIndex++;
	}
	try {
	_colorTypes.add((ColorType)checkCast(typeClass.
	getField(typeName.substring(classIndex)).
	get(typeClass), ColorType.class));
	} catch (NoSuchFieldException nsfe) {
	throw new SAXException("Unable to find color type: " +
	typeName);
	} catch (IllegalAccessException iae) {
	throw new SAXException("Unable to find color type: " +
	typeName);
	}
	}
	}
	}
	if (color == null) {
	throw new SAXException("color: you must specificy a value");
	}
	register(id, color);
	if (_stateInfo != null && _colorTypes.size() > 0) {
	Color[] colors = _stateInfo.getColors();
	int max = 0;
	for (int counter = _colorTypes.size() - 1; counter >= 0;
	counter--) {
	max = Math.max(max, _colorTypes.get(counter).getID());
	}
	if (colors == null \|\| colors.length <= max) {
	Color[] newColors = new Color[max + 1];
	if (colors != null) {
	System.arraycopy(colors, 0, newColors, 0, colors.length);
	}
	colors = newColors;
	}
	for (int counter = _colorTypes.size() - 1; counter >= 0;
	counter--) {
	colors[_colorTypes.get(counter).getID()] = color;
	}
	_stateInfo.setColors(colors);
	}
	}

	private void startProperty(Attributes attributes,
	Object property) throws SAXException {
	Object value = null;
	String key = null;
	// Type of the value: 0=idref, 1=boolean, 2=dimension, 3=insets,
	// 4=integer,5=string
	int iType = 0;
	String aValue = null;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String aName = attributes.getQName(i);
	if (aName.equals(ATTRIBUTE_TYPE)) {
	String type = attributes.getValue(i).toUpperCase();
	if (type.equals("IDREF")) {
	iType = 0;
	}
	else if (type.equals("BOOLEAN")) {
	iType = 1;
	}
	else if (type.equals("DIMENSION")) {
	iType = 2;
	}
	else if (type.equals("INSETS")) {
	iType = 3;
	}
	else if (type.equals("INTEGER")) {
	iType = 4;
	}
	else if (type.equals("STRING")) {
	iType = 5;
	}
	else {
	throw new SAXException(property + " unknown type, use" +
	"idref, boolean, dimension, insets or integer");
	}
	}
	else if (aName.equals(ATTRIBUTE_VALUE)) {
	aValue = attributes.getValue(i);
	}
	else if (aName.equals(ATTRIBUTE_KEY)) {
	key = attributes.getValue(i);
	}
	}
	if (aValue != null) {
	switch (iType) {
	case 0: // idref
	value = lookup(aValue, Object.class);
	break;
	case 1: // boolean
	if (aValue.toUpperCase().equals("TRUE")) {
	value = Boolean.TRUE;
	}
	else {
	value = Boolean.FALSE;
	}
	break;
	case 2: // dimension
	StringTokenizer tok = new StringTokenizer(aValue);
	value = new DimensionUIResource(
	nextInt(tok, "Invalid dimension"),
	nextInt(tok, "Invalid dimension"));
	break;
	case 3: // insets
	value = parseInsets(aValue, property + " invalid insets");
	break;
	case 4: // integer
	try {
	value = new Integer(Integer.parseInt(aValue));
	} catch (NumberFormatException nfe) {
	throw new SAXException(property + " invalid value");
	}
	break;
	case 5: //string
	value = aValue;
	break;
	}
	}
	if (value == null \|\| key == null) {
	throw new SAXException(property + ": you must supply a " +
	"key and value");
	}
	if (property == ELEMENT_DEFAULTS_PROPERTY) {
	_defaultsMap.put(key, value);
	}
	else if (_stateInfo != null) {
	if (_stateInfo.getData() == null) {
	_stateInfo.setData(new HashMap());
	}
	_stateInfo.getData().put(key, value);
	}
	else if (_style != null) {
	if (_style.getData() == null) {
	_style.setData(new HashMap());
	}
	_style.getData().put(key, value);
	}
	}

	private void startGraphics(Attributes attributes) throws SAXException {
	SynthGraphicsUtils graphics = null;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);
	if (key.equals(ATTRIBUTE_IDREF)) {
	graphics = (SynthGraphicsUtils)lookup(attributes.getValue(i),
	SynthGraphicsUtils.class);
	}
	}
	if (graphics == null) {
	throw new SAXException("graphicsUtils: you must supply an idref");
	}
	if (_style != null) {
	_style.setGraphicsUtils(graphics);
	}
	}

	private void startInsets(Attributes attributes) throws SAXException {
	int top = 0;
	int bottom = 0;
	int left = 0;
	int right = 0;
	Insets insets = null;
	String id = null;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);

	try {
	if (key.equals(ATTRIBUTE_IDREF)) {
	insets = (Insets)lookup(attributes.getValue(i),
	Insets.class);
	}
	else if (key.equals(ATTRIBUTE_ID)) {
	id = attributes.getValue(i);
	}
	else if (key.equals(ATTRIBUTE_TOP)) {
	top = Integer.parseInt(attributes.getValue(i));
	}
	else if (key.equals(ATTRIBUTE_LEFT)) {
	left = Integer.parseInt(attributes.getValue(i));
	}
	else if (key.equals(ATTRIBUTE_BOTTOM)) {
	bottom = Integer.parseInt(attributes.getValue(i));
	}
	else if (key.equals(ATTRIBUTE_RIGHT)) {
	right = Integer.parseInt(attributes.getValue(i));
	}
	} catch (NumberFormatException nfe) {
	throw new SAXException("insets: bad integer value for " +
	attributes.getValue(i));
	}
	}
	if (insets == null) {
	insets = new InsetsUIResource(top, left, bottom, right);
	}
	register(id, insets);
	if (_style != null) {
	_style.setInsets(insets);
	}
	}

	private void startBind(Attributes attributes) throws SAXException {
	ParsedSynthStyle style = null;
	String path = null;
	int type = -1;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);

	if (key.equals(ATTRIBUTE_STYLE)) {
	style = (ParsedSynthStyle)lookup(attributes.getValue(i),
	ParsedSynthStyle.class);
	}
	else if (key.equals(ATTRIBUTE_TYPE)) {
	String typeS = attributes.getValue(i).toUpperCase();

	if (typeS.equals("NAME")) {
	type = DefaultSynthStyleFactory.NAME;
	}
	else if (typeS.equals("REGION")) {
	type = DefaultSynthStyleFactory.REGION;
	}
	else {
	throw new SAXException("bind: unknown type " + typeS);
	}
	}
	else if (key.equals(ATTRIBUTE_KEY)) {
	path = attributes.getValue(i);
	}
	}
	if (style == null \|\| path == null \|\| type == -1) {
	throw new SAXException("bind: you must specify a style, type " +
	"and key");
	}
	try {
	_factory.addStyle(style, path, type);
	} catch (PatternSyntaxException pse) {
	throw new SAXException("bind: " + path + " is not a valid " +
	"regular expression");
	}
	}

	private void startPainter(Attributes attributes, String type) throws SAXException {
	Insets sourceInsets = null;
	Insets destInsets = null;
	String path = null;
	boolean paintCenter = true;
	boolean stretch = true;
	SynthPainter painter = null;
	String method = null;
	String id = null;
	int direction = -1;
	boolean center = false;

	boolean stretchSpecified = false;
	boolean paintCenterSpecified = false;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);
	String value = attributes.getValue(i);

	if (key.equals(ATTRIBUTE_ID)) {
	id = value;
	}
	else if (key.equals(ATTRIBUTE_METHOD)) {
	method = value.toLowerCase(Locale.ENGLISH);
	}
	else if (key.equals(ATTRIBUTE_IDREF)) {
	painter = (SynthPainter)lookup(value, SynthPainter.class);
	}
	else if (key.equals(ATTRIBUTE_PATH)) {
	path = value;
	}
	else if (key.equals(ATTRIBUTE_SOURCE_INSETS)) {
	sourceInsets = parseInsets(value, type +
	": sourceInsets must be top left bottom right");
	}
	else if (key.equals(ATTRIBUTE_DEST_INSETS)) {
	destInsets = parseInsets(value, type +
	": destinationInsets must be top left bottom right");
	}
	else if (key.equals(ATTRIBUTE_PAINT_CENTER)) {
	paintCenter = value.toLowerCase().equals("true");
	paintCenterSpecified = true;
	}
	else if (key.equals(ATTRIBUTE_STRETCH)) {
	stretch = value.toLowerCase().equals("true");
	stretchSpecified = true;
	}
	else if (key.equals(ATTRIBUTE_DIRECTION)) {
	value = value.toUpperCase().intern();
	if (value == "EAST") {
	direction = SwingConstants.EAST;
	}
	else if (value == "NORTH") {
	direction = SwingConstants.NORTH;
	}
	else if (value == "SOUTH") {
	direction = SwingConstants.SOUTH;
	}
	else if (value == "WEST") {
	direction = SwingConstants.WEST;
	}
	else if (value == "TOP") {
	direction = SwingConstants.TOP;
	}
	else if (value == "LEFT") {
	direction = SwingConstants.LEFT;
	}
	else if (value == "BOTTOM") {
	direction = SwingConstants.BOTTOM;
	}
	else if (value == "RIGHT") {
	direction = SwingConstants.RIGHT;
	}
	else if (value == "HORIZONTAL") {
	direction = SwingConstants.HORIZONTAL;
	}
	else if (value == "VERTICAL") {
	direction = SwingConstants.VERTICAL;
	}
	else if (value == "HORIZONTAL_SPLIT") {
	direction = JSplitPane.HORIZONTAL_SPLIT;
	}
	else if (value == "VERTICAL_SPLIT") {
	direction = JSplitPane.VERTICAL_SPLIT;
	}
	else {
	throw new SAXException(type + ": unknown direction");
	}
	}
	else if (key.equals(ATTRIBUTE_CENTER)) {
	center = value.toLowerCase().equals("true");
	}
	}
	if (painter == null) {
	if (type == ELEMENT_PAINTER) {
	throw new SAXException(type +
	": you must specify an idref");
	}
	if (sourceInsets == null && !center) {
	throw new SAXException(
	"property: you must specify sourceInsets");
	}
	if (path == null) {
	throw new SAXException("property: you must specify a path");
	}
	if (center && (sourceInsets != null \|\| destInsets != null \|\|
	paintCenterSpecified \|\| stretchSpecified)) {
	throw new SAXException("The attributes: sourceInsets, " +
	"destinationInsets, paintCenter and stretch " +
	" are not legal when center is true");
	}
	painter = new ImagePainter(!stretch, paintCenter,
	sourceInsets, destInsets, getResource(path), center);
	}
	register(id, painter);
	if (_stateInfo != null) {
	addPainterOrMerge(_statePainters, method, painter, direction);
	}
	else if (_style != null) {
	addPainterOrMerge(_stylePainters, method, painter, direction);
	}
	}

	private void addPainterOrMerge(List<ParsedSynthStyle.PainterInfo> painters, String method,
	SynthPainter painter, int direction) {
	ParsedSynthStyle.PainterInfo painterInfo;
	painterInfo = new ParsedSynthStyle.PainterInfo(method,
	painter,
	direction);

	for (Object infoObject: painters) {
	ParsedSynthStyle.PainterInfo info;
	info = (ParsedSynthStyle.PainterInfo) infoObject;

	if (painterInfo.equalsPainter(info)) {
	info.addPainter(painter);
	return;
	}
	}

	painters.add(painterInfo);
	}

	private void startImageIcon(Attributes attributes) throws SAXException {
	String path = null;
	String id = null;

	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);

	if (key.equals(ATTRIBUTE_ID)) {
	id = attributes.getValue(i);
	}
	else if (key.equals(ATTRIBUTE_PATH)) {
	path = attributes.getValue(i);
	}
	}
	if (path == null) {
	throw new SAXException("imageIcon: you must specify a path");
	}
	register(id, new LazyImageIcon(getResource(path)));
	}

	private void startOpaque(Attributes attributes) {
	if (_style != null) {
	_style.setOpaque(true);
	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);

	if (key.equals(ATTRIBUTE_VALUE)) {
	_style.setOpaque("true".equals(attributes.getValue(i).
	toLowerCase()));
	}
	}
	}
	}

	private void startInputMap(Attributes attributes) throws SAXException {
	_inputMapBindings.clear();
	_inputMapID = null;
	if (_style != null) {
	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String key = attributes.getQName(i);

	if (key.equals(ATTRIBUTE_ID)) {
	_inputMapID = attributes.getValue(i);
	}
	}
	}
	}

	private void endInputMap() throws SAXException {
	if (_inputMapID != null) {
	register(_inputMapID, new UIDefaults.LazyInputMap(
	_inputMapBindings.toArray(new Object[_inputMapBindings.
	size()])));
	}
	_inputMapBindings.clear();
	_inputMapID = null;
	}

	private void startBindKey(Attributes attributes) throws SAXException {
	if (_inputMapID == null) {
	// Not in an inputmap, bail.
	return;
	}
	if (_style != null) {
	String key = null;
	String value = null;
	for(int i = attributes.getLength() - 1; i >= 0; i--) {
	String aKey = attributes.getQName(i);

	if (aKey.equals(ATTRIBUTE_KEY)) {
	key = attributes.getValue(i);
	}
	else if (aKey.equals(ATTRIBUTE_ACTION)) {
	value = attributes.getValue(i);
	}
	}
	if (key == null \|\| value == null) {
	throw new SAXException(
	"bindKey: you must supply a key and action");
	}
	_inputMapBindings.add(key);
	_inputMapBindings.add(value);
	}
	}

	//
	// SAX methods, these forward to the DocumentHandler if we don't know
	// the element name.
	//

	public InputSource resolveEntity(String publicId, String systemId)
	throws IOException, SAXException {
	if (isForwarding()) {
	return getHandler().resolveEntity(publicId, systemId);
	}
	return null;
	}

	public void notationDecl(String name, String publicId, String systemId) throws SAXException {
	if (isForwarding()) {
	getHandler().notationDecl(name, publicId, systemId);
	}
	}

	public void unparsedEntityDecl(String name, String publicId,
	String systemId, String notationName) throws SAXException {
	if (isForwarding()) {
	getHandler().unparsedEntityDecl(name, publicId, systemId,
	notationName);
	}
	}

	public void setDocumentLocator(Locator locator) {
	if (isForwarding()) {
	getHandler().setDocumentLocator(locator);
	}
	}

	public void startDocument() throws SAXException {
	if (isForwarding()) {
	getHandler().startDocument();
	}
	}

	public void endDocument() throws SAXException {
	if (isForwarding()) {
	getHandler().endDocument();
	}
	}

	public void startElement(String uri, String local, String name, Attributes attributes)
	throws SAXException {
	name = name.intern();
	if (name == ELEMENT_STYLE) {
	startStyle(attributes);
	}
	else if (name == ELEMENT_STATE) {
	startState(attributes);
	}
	else if (name == ELEMENT_FONT) {
	startFont(attributes);
	}
	else if (name == ELEMENT_COLOR) {
	startColor(attributes);
	}
	else if (name == ELEMENT_PAINTER) {
	startPainter(attributes, name);
	}
	else if (name == ELEMENT_IMAGE_PAINTER) {
	startPainter(attributes, name);
	}
	else if (name == ELEMENT_PROPERTY) {
	startProperty(attributes, ELEMENT_PROPERTY);
	}
	else if (name == ELEMENT_DEFAULTS_PROPERTY) {
	startProperty(attributes, ELEMENT_DEFAULTS_PROPERTY);
	}
	else if (name == ELEMENT_SYNTH_GRAPHICS) {
	startGraphics(attributes);
	}
	else if (name == ELEMENT_INSETS) {
	startInsets(attributes);
	}
	else if (name == ELEMENT_BIND) {
	startBind(attributes);
	}
	else if (name == ELEMENT_BIND_KEY) {
	startBindKey(attributes);
	}
	else if (name == ELEMENT_IMAGE_ICON) {
	startImageIcon(attributes);
	}
	else if (name == ELEMENT_OPAQUE) {
	startOpaque(attributes);
	}
	else if (name == ELEMENT_INPUT_MAP) {
	startInputMap(attributes);
	}
	else if (name != ELEMENT_SYNTH) {
	if (_depth++ == 0) {
	getHandler().startDocument();
	}
	getHandler().startElement(uri, local, name, attributes);
	}
	}

	public void endElement(String uri, String local, String name) throws SAXException {
	if (isForwarding()) {
	getHandler().endElement(uri, local, name);
	_depth--;
	if (!isForwarding()) {
	getHandler().startDocument();
	}
	}
	else {
	name = name.intern();
	if (name == ELEMENT_STYLE) {
	endStyle();
	}
	else if (name == ELEMENT_STATE) {
	endState();
	}
	else if (name == ELEMENT_INPUT_MAP) {
	endInputMap();
	}
	}
	}

	public void characters(char ch[], int start, int length)
	throws SAXException {
	if (isForwarding()) {
	getHandler().characters(ch, start, length);
	}
	}

	public void ignorableWhitespace (char ch[], int start, int length)
	throws SAXException {
	if (isForwarding()) {
	getHandler().ignorableWhitespace(ch, start, length);
	}
	}

	public void processingInstruction(String target, String data)
	throws SAXException {
	if (isForwarding()) {
	getHandler().processingInstruction(target, data);
	}
	}

	public void warning(SAXParseException e) throws SAXException {
	if (isForwarding()) {
	getHandler().warning(e);
	}
	}

	public void error(SAXParseException e) throws SAXException {
	if (isForwarding()) {
	getHandler().error(e);
	}
	}


	public void fatalError(SAXParseException e) throws SAXException {
	if (isForwarding()) {
	getHandler().fatalError(e);
	}
	throw e;
	}


	/**
	* ImageIcon that lazily loads the image until needed.
	*/
	private static class LazyImageIcon extends ImageIcon implements UIResource {
	private URL location;

	public LazyImageIcon(URL location) {
	super();
	this.location = location;
	}

	public void paintIcon(Component c, Graphics g, int x, int y) {
	if (getImage() != null) {
	super.paintIcon(c, g, x, y);
	}
	}

	public int getIconWidth() {
	if (getImage() != null) {
	return super.getIconWidth();
	}
	return 0;
	}

	public int getIconHeight() {
	if (getImage() != null) {
	return super.getIconHeight();
	}
	return 0;
	}

	public Image getImage() {
	if (location != null) {
	setImage(Toolkit.getDefaultToolkit().getImage(location));
	location = null;
	}
	return super.getImage();
	}
	}
	}

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