// Copyright 2003, FreeHEP.
package org.freehep.util;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Insets;
import java.util.ArrayList;
import java.util.Collections;
import java.awt.Rectangle;
import java.util.Enumeration;
import java.util.List;
import java.util.Properties;


/**
 * Special property class which allows typed properties to be set and
 * returned. It also allows the hookup of two default property objects
 * to be searched if this property object does not contain the property.
 *
 * FIXME check what org.freehep.application.PropertyUtilities.java
 * has to offer and merge, or not
 *
 * FIXME: This class does not seem general enough to be a "public" utility. Should be 
 * improved and merged with PropertyUtilities, or moved into the graphicsio package (tonyj)
 *
 * @author Mark Donszelmann
 * @version $Id: UserProperties.java,v 1.1.1.1 2004/05/31 05:08:49 kuromaru Exp $
 */

public class UserProperties extends Properties {

    protected Properties altDefaults;

    public UserProperties() {
        super();
        altDefaults = new Properties();
    }

    public UserProperties(Properties defaults) {
        super(defaults);
        altDefaults = new Properties();
    }

    /**
     * Constructs UserProperties with a defaults and altDefaults table,
     * which are searched in that order.
     */
    public UserProperties(Properties defaults, Properties altDefaults) {
        super(defaults);
        this.altDefaults = altDefaults;
    }

    public Enumeration propertyNames() {
        
        List list = new ArrayList();

        for (Enumeration e = super.propertyNames(); e.hasMoreElements(); ) {
            list.add(e.nextElement());
        }
        if (altDefaults != null) {
            for (Enumeration e = altDefaults.propertyNames(); e.hasMoreElements(); ) {
                list.add(e.nextElement());
            }
        }

        return Collections.enumeration(list);
    }

    /**
     * Copies properties, including its defaults into this UserProperties
     */
    public void setProperties(Properties properties) {
        for (Enumeration e=properties.propertyNames(); e.hasMoreElements(); ) {
            String key = (String)e.nextElement();
            setProperty(key, properties.getProperty(key));
        }
    }

    public Object setProperty(String key, String value) {
        if (value == null) return super.setProperty(key, "null");
        return super.setProperty(key, value);
    }

    public Object setProperty(String key, String[] value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, String[] value) {
        if (value == null) return properties.setProperty(key, "null");

        StringBuffer sb = new StringBuffer();
        for (int i=0; i<value.length; i++) {
            if (i != 0) sb.append(", ");
            sb.append(value[i]);
        }
        return properties.setProperty(key, sb.toString());
    }

    public Object setProperty(String key, Color value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, Color value) {
        if (value == null) return properties.setProperty(key, "null");
        return properties.setProperty(key, value.getRed()+", "+value.getGreen()+", "+value.getBlue()+", "+value.getAlpha());
    }

    public Object setProperty(String key, Rectangle value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, Rectangle value) {
        if (value == null) return properties.setProperty(key, "null");
        return properties.setProperty(key, value.x+", "+value.y+", "+value.width+", "+value.height);
    }

    public Object setProperty(String key, Insets value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, Insets value) {
        if (value == null) return properties.setProperty(key, "null");
        return properties.setProperty(key, value.top+", "+value.left+", "+value.bottom+", "+value.right);
    }

    public Object setProperty(String key, Dimension value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, Dimension value) {
        if (value == null) return properties.setProperty(key, "null");
        return properties.setProperty(key, value.width+", "+value.height);
    }

    public Object setProperty(String key, int value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, int value) {
        return properties.setProperty(key, Integer.toString(value));
    }

    public Object setProperty(String key, double value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, double value) {
        return properties.setProperty(key, Double.toString(value));
    }

    public Object setProperty(String key, float value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, float value) {
        return properties.setProperty(key, Float.toString(value));
    }

    public Object setProperty(String key, boolean value) {
        return setProperty(this, key, value);
    }

    public static Object setProperty(Properties properties, String key, boolean value) {
        return properties.setProperty(key, Boolean.toString(value));
    }



    public String getProperty(String key) {
        String value = super.getProperty(key);
        return value != null ? value : altDefaults.getProperty(key);
    }

    public String getProperty(String key, String def) {
        String value = getProperty(key);
        return value != null ? value : def;
    }

    public String[] getPropertyStringArray(String key) {
        return getPropertyStringArray(key, null);
    }

    public String[] getPropertyStringArray(String key, String[] def) {
        String s = getProperty(key);
        if (s == null) return def;
        if (s.equals("null")) return null;

        return s.split(", ");
    }

    public Color getPropertyColor(String key) {
        return getPropertyColor(key, null);
    }

    public Color getPropertyColor(String key, Color def) {
        String s = getProperty(key);
        if (s == null) return def;
        if (s.equals("null")) return null;

        String[] r = s.split(", ");
        return new Color(
                        Integer.parseInt(r[0]),
                        Integer.parseInt(r[1]),
                        Integer.parseInt(r[2]),
                        Integer.parseInt(r[3])
        );
    }

    public Rectangle getPropertyRectangle(String key) {
        return getPropertyRectangle(key, null);
    }

    public Rectangle getPropertyRectangle(String key, Rectangle def) {
        String s = getProperty(key);
        if (s == null) return def;
        if (s.equals("null")) return null;

        String[] r = s.split(", ");
        return new Rectangle(
                        Integer.parseInt(r[0]),
                        Integer.parseInt(r[1]),
                        Integer.parseInt(r[2]),
                        Integer.parseInt(r[3])
        );
    }

    public Insets getPropertyInsets(String key) {
        return getPropertyInsets(key, null);
    }

    public Insets getPropertyInsets(String key, Insets def) {
        String s = getProperty(key);
        if (s == null) return def;
        if (s.equals("null")) return null;

        String[] r = s.split(", ");
        return new Insets(
                        Integer.parseInt(r[0]),
                        Integer.parseInt(r[1]),
                        Integer.parseInt(r[2]),
                        Integer.parseInt(r[3])
        );
    }

    public Dimension getPropertyDimension(String key) {
        return getPropertyDimension(key, null);
    }

    public Dimension getPropertyDimension(String key, Dimension def) {
        String s = getProperty(key);
        if (s == null) return def;
        if (s.equals("null")) return null;

        String[] d = s.split(", ");
        return new Dimension(
                        Integer.parseInt(d[0]),
                        Integer.parseInt(d[1])
        );
    }

    public int getPropertyInt(String key) {
        return getPropertyInt(key, 0);
    }

    public int getPropertyInt(String key, int def) {
        // FIXME: Yow!, two unnecessary object creations for each key lookup.
        return new Integer(getProperty(key, Integer.toString(def))).intValue();
    }

    public double getPropertyDouble(String key) {
        return getPropertyDouble(key, 0.0);
    }

    public double getPropertyDouble(String key, double def) {
        return new Double(getProperty(key, Double.toString(def))).doubleValue();
    }

    public float getPropertyFloat(String key) {
        return getPropertyFloat(key, 0.0f);
    }

    public float getPropertyFloat(String key, float def) {
        return new Float(getProperty(key, Float.toString(def))).floatValue();
    }

    public boolean isProperty(String key) {
        return isProperty(key, false);
    }

    public boolean isProperty(String key, boolean def) {
        return new Boolean(getProperty(key, Boolean.toString(def))).booleanValue();
    }

}
