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The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.

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/*
 *  ====================================================================
 *    Licensed to the Apache Software Foundation (ASF) under one or more
 *    contributor license agreements.  See the NOTICE file distributed with
 *    this work for additional information regarding copyright ownership.
 *    The ASF licenses this file to You 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.
 * ====================================================================
 */

package org.apache.poi.ss.usermodel;

/**
 * High level representation for Font Formatting component
 * of Conditional Formatting settings
 */
public interface FontFormatting {
    // TODO: refactor and unify Font & FontFormatting in POI 5.0.0

    /**
     * get the type of super or subscript for the font
     *
     * @return super or subscript option
     * @see Font#SS_NONE
     * @see Font#SS_SUPER
     * @see Font#SS_SUB
     */
    short getEscapementType();

    /**
     * set the escapement type for the font
     *
     * @param escapementType  super or subscript option
     * @see Font#SS_NONE
     * @see Font#SS_SUPER
     * @see Font#SS_SUB
     */
    void setEscapementType(short escapementType);

    /**
     * @return font colour index, or 0 if not indexed (XSSF only)
     */
    short getFontColorIndex();

    /**
     * Sets the indexed colour to use
     * @param color font colour index
     */
    void setFontColorIndex(short color);

    /**
     * @return The colour of the font, or null if no colour applied
     */
    Color getFontColor();

    /**
     * Sets the colour to use
     * @param color font colour to use
     */
    void setFontColor(Color color);

    /**
     * gets the height of the font in 1/20th point units
     *
     * @return fontheight (in points/20); or -1 if not modified
     */
    int getFontHeight();

    /**
     * Sets the height of the font in 1/20th point units
     *
     * @param height the height in twips (in points/20)
     */
    void setFontHeight(int height);

    /**
     * get the type of underlining for the font
     *
     * @return font underlining type
     *
     * @see Font#U_NONE
     * @see Font#U_SINGLE
     * @see Font#U_DOUBLE
     * @see Font#U_SINGLE_ACCOUNTING
     * @see Font#U_DOUBLE_ACCOUNTING
     */
    short getUnderlineType();

    /**
     * set the type of underlining type for the font
     *
     * @param underlineType  super or subscript option
     *
     * @see Font#U_NONE
     * @see Font#U_SINGLE
     * @see Font#U_DOUBLE
     * @see Font#U_SINGLE_ACCOUNTING
     * @see Font#U_DOUBLE_ACCOUNTING
     */
    void setUnderlineType(short underlineType);

    /**
     * get whether the font weight is set to bold or not
     *
     * @return bold - whether the font is bold or not
     */
    boolean isBold();

    /**
     * @return true if font style was set to italic
     */
    boolean isItalic();


    /**
     * @return true if font strikeout is on
     */
    boolean isStruckout();

    /**
     * set font style options.
     *
     * @param italic - if true, set posture style to italic, otherwise to normal
     * @param bold if true, set font weight to bold, otherwise to normal
     */
    void setFontStyle(boolean italic, boolean bold);

    /**
     * set font style options to default values (non-italic, non-bold)
     */
    void resetFontStyle();
}