Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /**
     * Sets or removes the given key from the specified style and returns the
     * new style. If value is null then the flag is toggled.
     * 
     * @param style
     *            String of the form stylename[;key=value].
     * @param key
     *            Key of the style to be changed.
     * @param flag
     *            Integer for the bit to be changed.
     * @param value
     *            Optional boolean value for the given flag.
     */
    public static String setStyleFlag(String style, String key, int flag, Boolean value) {
        if (style == null || style.length() == 0) {
            if (value == null || value.booleanValue()) {
                style = key + "=" + flag;
            } else {
                style = key + "=0";
            }
        } else {
            int index = style.indexOf(key + "=");

            if (index < 0) {
                String sep = (style.endsWith(";")) ? "" : ";";

                if (value == null || value.booleanValue()) {
                    style = style + sep + key + "=" + flag;
                } else {
                    style = style + sep + key + "=0";
                }
            } else {
                int cont = style.indexOf(";", index);
                String tmp = "";
                int result = 0;

                if (cont < 0) {
                    tmp = style.substring(index + key.length() + 1);
                } else {
                    tmp = style.substring(index + key.length() + 1, cont);
                }

                if (value == null) {
                    result = Integer.parseInt(tmp) ^ flag;
                } else if (value.booleanValue()) {
                    result = Integer.parseInt(tmp) | flag;
                } else {
                    result = Integer.parseInt(tmp) & ~flag;
                }

                style = style.substring(0, index) + key + "=" + result + ((cont >= 0) ? style.substring(cont) : "");
            }
        }

        return style;
    }
}