/*

 * @(#)UIManagerLookup.java 4/5/2007

 *

 * Copyright 2002 - 2007 JIDE Software Inc. All rights reserved.

 */



package com.jidesoft.plaf;



import com.jidesoft.converter.ObjectConverterManager;

import sun.reflect.Reflection;



import javax.swing.*;

import javax.swing.border.Border;

import java.awt.*;

import java.util.Collection;

import java.util.HashMap;

import java.util.Locale;

import java.util.Map;



/**

 * This class simply uses UIManager's get method to lookup the UIDefaults. We used this everywhere in our code so that

 * we have one central place to find out which UIDefaults we are using. Another good thing is you can use {@link

 * #setTrace(boolean)} and {@link #setDebug(boolean)} to turn on the trace so that it will print out which UIDefaults we

 * are trying to get.

 */

public class UIDefaultsLookup {

    private static boolean _debug = false;

    private static boolean _trace = false;



    /**

     * Sets the debug mode. If debug mode is on, we will print out any UIDefaults that the value is null.

     *

     * @param debug true or false.

     */

    public static void setDebug(boolean debug) {

        _debug = debug;

    }



    /**

     * Sets the trace mode. If trace mode is on, we will print out any UIDefaults we are trying to get and its current

     * value.

     *

     * @param trace true or false.

     */

    public static void setTrace(boolean trace) {

        _trace = trace;

    }



    public static void put(UIDefaults table, String key, Object value) {

        Object v = table.get(key);

        if (v == null || !(v instanceof Map)) {

            v = new HashMap<ClassLoader, Object>();

            table.put(key, v);

        }

        Object cl = UIManager.get("ClassLoader");

        if (!(cl instanceof ClassLoader)) {

            cl = value.getClass().getClassLoader();

        }

        ((Map) v).put(cl, value);

    }



    // Returns the invoker's class loader, or null if none.

    // NOTE: This must always be invoked when there is exactly one intervening

    // frame from the core libraries on the stack between this method's

    // invocation and the desired invoker.

    static ClassLoader getCallerClassLoader() {

        Object cl = UIManager.get("ClassLoader");

        if (cl instanceof ClassLoader) {

            return (ClassLoader) cl;

        }



        // NOTE use of more generic Reflection.getCallerClass()

        Class caller = Reflection.getCallerClass(3);

        // This can be null if the VM is requesting it

        if (caller == null) {

            return null;

        }

        // Circumvent security check since this is package-private

        return caller.getClassLoader();

    }



    public static Object get(Object key) {

        Object value = UIManager.get(key);

        log(value, key, null);

        if (value instanceof Map && "Theme.painter".equals(key)) {

            Map map = (Map) value;

            try {

                ClassLoader classLoader = getCallerClassLoader();

                Object o = map.get(classLoader);

                while (o == null && classLoader.getParent() != null) {

                    classLoader = classLoader.getParent();

                    o = map.get(classLoader);

                }

                if (o == null && map.size() >= 1) {

                    Collection<Object> classLoaders = map.values();

                    for (Object cl : classLoaders) {

                        if (cl != null) {

                            o = cl;

                            break;

                        }

                    }

                }

                return o;

            }

            catch (Exception e) {

                if (map.size() == 1) {

                    return map.values().iterator().next();

                }

                else {

                    return map.get(LookAndFeelFactory.getUIManagerClassLoader());

                }

            }

        }

        return value;

    }



    public static Object get(Object key, Locale l) {

        Object value = UIManager.get(key, l);

        log(value, key, l);

        return value;

    }



    private static void log(Object value, Object key, Locale l) {

        if (_debug && value == null) {

            System.out.println("\"" + key + (l == null ? "" : l.toString()) + " \" ==> null ------------------------");

        }

        else if (_trace) {

            if (value == null) {

                System.out.println("\"" + key + (l == null ? "" : l.toString()) + " \" ==> null ------------------------");

            }

            else {

                System.out.println("\"" + key + (l == null ? "" : l.toString()) + " \" ==> " + value.getClass().getName() + "(" + ObjectConverterManager.toString(value) + ")");

            }

        }

    }



    /**

     * If the value of <code>key</code> is a <code>Font</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is a <code>Font</code>, return the <code>Font</code> object; otherwise

     *         return <code>null</code>

     */

    public static Font getFont(Object key) {

        Object value = get(key);

        return (value instanceof Font) ? (Font) value : null;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is a <code>Font</code> return it, otherwise

     * return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is a <code>Font</code>, return the

     *         <code>Font</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static Font getFont(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Font) ? (Font) value : null;

    }



    /**

     * If the value of <code>key</code> is a <code>Color</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is a <code>Color</code>, return the <code>Color</code> object;

     *         otherwise return <code>null</code>

     */

    public static Color getColor(Object key) {

        Object value = get(key);

        return (value instanceof Color) ? (Color) value : null;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is a <code>Color</code> return it, otherwise

     * return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is a <code>Color</code>, return the

     *         <code>Color</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static Color getColor(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Color) ? (Color) value : null;

    }





    /**

     * If the value of <code>key</code> is an <code>Icon</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is an <code>Icon</code>, return the <code>Icon</code> object; otherwise

     *         return <code>null</code>

     */

    public static Icon getIcon(Object key) {

        Object value = get(key);

        return (value instanceof Icon) ? (Icon) value : null;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is an <code>Icon</code> return it, otherwise

     * return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is an <code>Icon</code>, return the

     *         <code>Icon</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static Icon getIcon(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Icon) ? (Icon) value : null;

    }





    /**

     * If the value of <code>key</code> is a <code>Border</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is a <code>Border</code>, return the <code>Border</code> object;

     *         otherwise return <code>null</code>

     */

    public static Border getBorder(Object key) {

        Object value = get(key);

        return (value instanceof Border) ? (Border) value : null;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is a <code>Border</code> return it, otherwise

     * return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is a <code>Border</code>, return the

     *         <code>Border</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static Border getBorder(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Border) ? (Border) value : null;

    }





    /**

     * If the value of <code>key</code> is a <code>String</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is a <code>String</code>, return the <code>String</code> object;

     *         otherwise return <code>null</code>

     */

    public static String getString(Object key) {

        Object value = get(key);

        return (value instanceof String) ? (String) value : null;

    }



    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is a <code>String</code> return it, otherwise

     * return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired <code>Locale</code>

     * @return if the value for <code>key</code> for the given <code>Locale</code> is a <code>String</code>, return the

     *         <code>String</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static String getString(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof String) ? (String) value : null;

    }



    /**

     * If the value of <code>key</code> is an <code>Integer</code> return its integer value, otherwise return 0.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is an <code>Integer</code>, return its value, otherwise return 0

     */

    public static int getInt(Object key) {

        Object value = get(key);

        return (value instanceof Integer) ? (Integer) value : 0;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is an <code>Integer</code> return its integer

     * value, otherwise return 0.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is an <code>Integer</code>, return its value,

     *         otherwise return 0

     *

     * @since 1.9.5.04

     */

    public static int getInt(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Integer) ? (Integer) value : 0;

    }





    /**

     * If the value of <code>key</code> is boolean, return the boolean value, otherwise return false.

     *

     * @param key an <code>Object</code> specifying the key for the desired boolean value

     * @return if the value of <code>key</code> is boolean, return the boolean value, otherwise return false.

     *

     * @since 1.9.5.04

     */

    public static boolean getBoolean(Object key) {

        Object value = get(key);

        return (value instanceof Boolean) ? (Boolean) value : false;

    }



    /**

     * If the value of <code>key</code> is boolean, return the boolean value, otherwise return false.

     *

     * @param key          an <code>Object</code> specifying the key for the desired boolean value

     * @param defaultValue the default value if the key is missing

     * @return if the value of <code>key</code> is boolean, return the boolean value, otherwise return false.

     */

    public static boolean getBoolean(Object key, boolean defaultValue) {

        Object value = get(key);

        return (value instanceof Boolean) ? (Boolean) value : defaultValue;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is boolean, return the boolean value,

     * otherwise return false.

     *

     * @param key an <code>Object</code> specifying the key for the desired boolean value

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is boolean, return the boolean value, otherwise

     *         return false.

     *

     * @since 1.9.5.04

     */

    public static boolean getBoolean(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Boolean) ? (Boolean) value : false;

    }





    /**

     * If the value of <code>key</code> is an <code>Insets</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is an <code>Insets</code>, return the <code>Insets</code> object;

     *         otherwise return <code>null</code>

     */

    public static Insets getInsets(Object key) {

        Object value = get(key);

        return (value instanceof Insets) ? (Insets) value : null;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is an <code>Insets</code> return it, otherwise

     * return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is an <code>Insets</code>, return the

     *         <code>Insets</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static Insets getInsets(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Insets) ? (Insets) value : null;

    }





    /**

     * If the value of <code>key</code> is a <code>Dimension</code> return it, otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @return if the value for <code>key</code> is a <code>Dimension</code>, return the <code>Dimension</code> object;

     *         otherwise return <code>null</code>

     */

    public static Dimension getDimension(Object key) {

        Object value = get(key);

        return (value instanceof Dimension) ? (Dimension) value : null;

    }





    /**

     * If the value of <code>key</code> for the given <code>Locale</code> is a <code>Dimension</code> return it,

     * otherwise return <code>null</code>.

     *

     * @param key the desired key

     * @param l   the desired locale

     * @return if the value for <code>key</code> and <code>Locale</code> is a <code>Dimension</code>, return the

     *         <code>Dimension</code> object; otherwise return <code>null</code>

     *

     * @since 1.9.5.04

     */

    public static Dimension getDimension(Object key, Locale l) {

        Object value = get(key, l);

        return (value instanceof Dimension) ? (Dimension) value : null;

    }

}