public ChainedProperties() 
{

}

Creates a new instance of ChainedProperties

 public  void addToChain(String key,
    HashMap prop) 
{
		// adjust the font size
		String value = (String) prop.get(ElementTags.SIZE);
		if (value != null) {
			if (value.endsWith("px")) {
				prop.put(ElementTags.SIZE, value.substring(0,
						value.length() - 2));
			} else {
				int s = 0;
				if (value.startsWith("+") || value.startsWith("-")) {
					String old = getProperty("basefontsize");
					if (old == null)
						old = "12";
					float f = Float.parseFloat(old);
					int c = (int) f;
					for (int k = fontSizes.length - 1; k  >= 0; --k) {
						if (c  >= fontSizes[k]) {
							s = k;
							break;
						}
					}
					int inc = Integer.parseInt(value.startsWith("+") ? value
							.substring(1) : value);
					s += inc;
				} else {
					try {
						s = Integer.parseInt(value) - 1;
					} catch (NumberFormatException nfe) {
						s = 0;
					}
				}
				if (s <  0)
					s = 0;
				else if (s  >= fontSizes.length)
					s = fontSizes.length - 1;
				prop.put(ElementTags.SIZE, Integer.toString(fontSizes[s]));
			}
		}
		chain.add(new Object[] { key, prop });
}

 public String getProperty(String key) 
{
		for (int k = chain.size() - 1; k  >= 0; --k) {
			Object obj[] = (Object[]) chain.get(k);
			HashMap prop = (HashMap) obj[1];
			String ret = (String) prop.get(key);
			if (ret != null)
				return ret;
		}
		return null;
}

 public boolean hasProperty(String key) 
{
		for (int k = chain.size() - 1; k  >= 0; --k) {
			Object obj[] = (Object[]) chain.get(k);
			HashMap prop = (HashMap) obj[1];
			if (prop.containsKey(key))
				return true;
		}
		return false;
}

 public  void removeChain(String key) 
{
		for (int k = chain.size() - 1; k  >= 0; --k) {
			if (key.equals(((Object[]) chain.get(k))[0])) {
				chain.remove(k);
				return;
			}
		}
}