# PDFontSetting.java

    /*
     * 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.pdfbox.pdmodel.graphics;

    import org.apache.pdfbox.cos.COSArray;
    import org.apache.pdfbox.cos.COSBase;
    import org.apache.pdfbox.cos.COSDictionary;
    import org.apache.pdfbox.cos.COSFloat;
    import org.apache.pdfbox.cos.COSNumber;

    import org.apache.pdfbox.pdmodel.common.COSObjectable;

    import org.apache.pdfbox.pdmodel.font.PDFont;
    import org.apache.pdfbox.pdmodel.font.PDFontFactory;

    import java.io.IOException;

    /**
     * This class represents a font setting used for the graphics state.  A font setting is a font and a
     * font size.  Maybe there is a better name for this?
     *
     * @author Ben Litchfield
     */
    public class PDFontSetting implements COSObjectable
    {
        private COSArray fontSetting = null;

        /**
         * Creates a blank font setting, font will be null, size will be 1.
         */
        public PDFontSetting()
        {
            fontSetting = new COSArray();
            fontSetting.add( null );
            fontSetting.add( new COSFloat( 1 ) );
        }

        /**
         * Constructs a font setting from an existing array.
         *
         * @param fs The new font setting value.
         */
        public PDFontSetting( COSArray fs )
        {
            fontSetting = fs;
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public COSBase getCOSObject()
        {
            return fontSetting;
        }

        /**
         * This will get the font for this font setting.
         *
         * @return The font for this setting of null if one was not found.
         *
         * @throws IOException If there is an error getting the font.
         */
        public PDFont getFont() throws IOException
        {
            PDFont retval = null;
            COSBase font = fontSetting.getObject(0);
            if( font instanceof COSDictionary )
            {
                retval = PDFontFactory.createFont( (COSDictionary)font );
            }
            return retval;
        }

        /**
         * This will set the font for this font setting.
         *
         * @param font The new font.
         */
        public void setFont( PDFont font )
        {
            fontSetting.set( 0, font );
        }

        /**
         * This will get the size of the font.
         *
         * @return The size of the font.
         */
        public float getFontSize()
        {
            COSNumber size = (COSNumber)fontSetting.get( 1 );
            return size.floatValue();
        }

        /**
         * This will set the size of the font.
         *
         * @param size The new size of the font.
         */
        public void setFontSize( float size )
        {
            fontSetting.set( 1, new COSFloat( size ) );
        }
    }