/*
* StyleAttribute.java
*
*
* The Salamander Project - 2D and 3D graphics libraries in Java
* Copyright (C) 2004 Mark McKay
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on January 27, 2004, 2:53 PM
*/
package com.kitfox.svg.xml;
import java.awt.*;
import java.net.*;
import java.io.*;
import java.util.regex.*;
/**
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class StyleAttribute implements Serializable
{
public static final long serialVersionUID = 0;
static final Matcher matchUrl = Pattern.compile("\\s*url\\((.*)\\)\\s*").matcher("");
static final Matcher matchFpNumUnits = Pattern.compile("\\s*([-+]?((\\d*\\.\\d+)|(\\d+))([-+]?[eE]\\d+)?)\\s*(px|cm|mm|in|pc|pt|em|ex)\\s*").matcher("");
String name;
String stringValue;
boolean colorCompatable = false;
boolean urlCompatable = false;
/** Creates a new instance of StyleAttribute */
public StyleAttribute()
{
this(null, null);
}
public StyleAttribute(String name)
{
this.name = name;
stringValue = null;
}
public StyleAttribute(String name, String stringValue)
{
this.name = name;
this.stringValue = stringValue;
}
public String getName() { return name; }
public StyleAttribute setName(String name) { this.name = name; return this; }
public String getStringValue() { return stringValue; }
public String[] getStringList()
{
return XMLParseUtil.parseStringList(stringValue);
}
public void setStringValue(String value)
{
stringValue = value;
}
public boolean getBooleanValue() {
return stringValue.toLowerCase().equals("true");
}
public int getIntValue() {
return XMLParseUtil.findInt(stringValue);
}
public int[] getIntList() {
return XMLParseUtil.parseIntList(stringValue);
}
public double getDoubleValue() {
return XMLParseUtil.findDouble(stringValue);
}
public double[] getDoubleList() {
return XMLParseUtil.parseDoubleList(stringValue);
}
public float getFloatValue() {
return XMLParseUtil.findFloat(stringValue);
}
public float[] getFloatList() {
return XMLParseUtil.parseFloatList(stringValue);
}
public float getRatioValue() {
return (float)XMLParseUtil.parseRatio(stringValue);
// try { return Float.parseFloat(stringValue); }
// catch (Exception e) {}
// return 0f;
}
public String getUnits() {
matchFpNumUnits.reset(stringValue);
if (!matchFpNumUnits.matches()) return null;
return matchFpNumUnits.group(6);
}
public NumberWithUnits getNumberWithUnits() {
return XMLParseUtil.parseNumberWithUnits(stringValue);
}
public float getFloatValueWithUnits()
{
NumberWithUnits number = getNumberWithUnits();
return convertUnitsToPixels(number.getUnits(), number.getValue());
}
static public float convertUnitsToPixels(int unitType, float value)
{
if (unitType == NumberWithUnits.UT_UNITLESS || unitType == NumberWithUnits.UT_PERCENT)
{
return value;
}
float pixPerInch;
try
{
pixPerInch = (float)Toolkit.getDefaultToolkit().getScreenResolution();
}
catch (HeadlessException ex)
{
//default to 72 dpi
pixPerInch = 72;
}
final float inchesPerCm = .3936f;
switch (unitType)
{
case NumberWithUnits.UT_IN:
return value * pixPerInch;
case NumberWithUnits.UT_CM:
return value * inchesPerCm * pixPerInch;
case NumberWithUnits.UT_MM:
return value * .1f * inchesPerCm * pixPerInch;
case NumberWithUnits.UT_PT:
return value * (1f / 72f) * pixPerInch;
case NumberWithUnits.UT_PC:
return value * (1f / 6f) * pixPerInch;
}
return value;
}
public Color getColorValue()
{
return ColorTable.parseColor(stringValue);
}
public String parseURLFn()
{
matchUrl.reset(stringValue);
if (!matchUrl.matches()) return null;
return matchUrl.group(1);
}
public URL getURLValue(URL docRoot)
{
String fragment = parseURLFn();
if (fragment == null) return null;
try {
return new URL(docRoot, fragment);
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
public URL getURLValue(URI docRoot)
{
String fragment = parseURLFn();
if (fragment == null) return null;
try {
URI ref = docRoot.resolve(fragment);
return ref.toURL();
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
public URI getURIValue()
{
return getURIValue(null);
}
/**
* Parse this sytle attribute as a URL and return it in URI form resolved
* against the passed base.
*
* @param base - URI to resolve against. If null, will return value without
* attempting to resolve it.
*/
public URI getURIValue(URI base)
{
try {
String fragment = parseURLFn();
if (fragment == null) fragment = stringValue.replaceAll("\\s+", "");
if (fragment == null) return null;
//======================
//This gets around a bug in the 1.5.0 JDK
if (Pattern.matches("[a-zA-Z]:!\\\\.*", fragment))
{
File file = new File(fragment);
return file.toURI();
}
//======================
//[scheme:]scheme-specific-part[#fragment]
URI uriFrag = new URI(fragment);
if (uriFrag.isAbsolute())
{
//Has scheme
return uriFrag;
}
if (base == null) return uriFrag;
URI relBase = new URI(null, base.getSchemeSpecificPart(), null);
URI relUri;
if (relBase.isOpaque())
{
relUri = new URI(null, base.getSchemeSpecificPart(), uriFrag.getFragment());
}
else
{
relUri = relBase.resolve(uriFrag);
}
return new URI(base.getScheme() + ":" + relUri);
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
public static void main(String[] args)
{
try
{
URI uri = new URI("jar:http://www.kitfox.com/jackal/jackal.jar!/res/doc/about.svg");
uri = uri.resolve("#myFragment");
System.err.println(uri.toString());
uri = new URI("http://www.kitfox.com/jackal/jackal.html");
uri = uri.resolve("#myFragment");
System.err.println(uri.toString());
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
