Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/* 
 * Copyright 2016 Dmitry Avtonomov.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Collections;

import java.util.List;

import javax.swing.UIDefaults;
import javax.swing.UIManager;

public class Main {
    /**
     * Convenience method for retrieving the UIDefault for a single property
     * of a particular class.
     * 
     * @param clazz the class of interest
     * @param property the property to query
     * @return the UIDefault property, or null if not found
     */
    public static Object getUIDefaultOfClass(Class<?> clazz, String property) {
        Object retVal = null;
        UIDefaults defaults = getUIDefaultsOfClass(clazz);
        List<Object> listKeys = Collections.list(defaults.keys());
        for (Object key : listKeys) {
            if (key.equals(property)) {
                return defaults.get(key);
            }
            if (key.toString().equalsIgnoreCase(property)) {
                retVal = defaults.get(key);
            }
        }
        return retVal;
    }

    /**
     * Convenience method for retrieving a subset of the UIDefaults pertaining
     * to a particular class.
     * 
     * @param clazz the class of interest
     * @return the UIDefaults of the class
     */
    public static UIDefaults getUIDefaultsOfClass(Class<?> clazz) {
        String name = clazz.getName();
        name = name.substring(name.lastIndexOf(".") + 2);
        return getUIDefaultsOfClass(name);
    }

    /**
     * Convenience method for retrieving a subset of the UIDefaults pertaining
     * to a particular class.
     * 
     * @param className fully qualified name of the class of interest
     * @return the UIDefaults of the class named
     */
    public static UIDefaults getUIDefaultsOfClass(String className) {
        UIDefaults retVal = new UIDefaults();
        UIDefaults defaults = UIManager.getLookAndFeelDefaults();
        List<?> listKeys = Collections.list(defaults.keys());
        for (Object key : listKeys) {
            if (key instanceof String && ((String) key).startsWith(className)) {
                String stringKey = (String) key;
                String property = stringKey;
                if (stringKey.contains(".")) {
                    property = stringKey.substring(stringKey.indexOf(".") + 1);
                }
                retVal.put(property, defaults.get(key));
            }
        }
        return retVal;
    }

    /**
     * Convenience method for determining whether two objects are either
     * equal or both null.
     * 
     * @param obj1 the first reference object to compare.
     * @param obj2 the second reference object to compare.
     * @return true if obj1 and obj2 are equal or if both are null,
     * false otherwise
     */
    public static boolean equals(Object obj1, Object obj2) {
        return obj1 == null ? obj2 == null : obj1.equals(obj2);
    }
}