/*
 * [CharLiteral.java]
 *
 * Summary: Describes one char literal token for display. enclosed in '.
 *
 * Copyright: (c) 2004-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 *  2.0 2009-04-19 tidy comments, more accurate colour names
 */
package com.mindprod.jtokens;

import java.awt.Color;
import java.awt.Font;

import static com.mindprod.jtokens.TokenColourScheme.JAVA_FOREGROUND_FOR_CHAR_LITERAL;
import static com.mindprod.jtokens.TokenFonts.EMPHASIS_FONT_SIZE_IN_POINTS;
import static com.mindprod.jtokens.TokenFonts.MONO_FONTS;

/**
 * Describes one char literal token for display. enclosed in '.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 2.0 2009-04-19 tidy comments, more accurate colour names
 * @since 2004-04-24
 */
public final class CharLiteral extends Literal
    {
    /**
     * version number for the class
     */
    static final long serialVersionUID = 1L;

    /**
     * Font to render this token
     */
    @SuppressWarnings( { "ConstantNamingConvention" } )
    private static final Font font =
            bestFont( MONO_FONTS, Font.PLAIN, EMPHASIS_FONT_SIZE_IN_POINTS );

    /**
     * Constructor
     *
     * @param c single char that is erroneous syntax
     */
    public CharLiteral( char c )
        {
        super( c );
        }

    /**
     * Constructor
     *
     * @param charLit literal text without the enclosing "
     */
    public CharLiteral( String charLit )
        {
        super( charLit );
        }

    /**
     * font to render this token.
     *
     * @return Font, in the correct size.
     */
    public Font getFont()
        {
        return font;
        }

    /**
     * foreground colour to render this token.
     *
     * @return Color object.
     */
    public Color getForeground()
        {
        return JAVA_FOREGROUND_FOR_CHAR_LITERAL;
        }

    /**
     * @overide
     * @inheritDoc
     */
    public String getHTML()
        {
        return "<span class=\"charliteral\">" + getRawHTML() + "</span>";
        }

    /**
     * @overide
     * @inheritDoc
     */
    public String getText()
        {
        return '\'' + super.getText() + '\'';
        }

    /**
     * Can this token be collapsed with following space or with a following identical token?
     *
     * @return true if can be collapsed simply by combining text
     */
    public boolean isCollapsible()
        {
        // would confuse auto tick surrounding
        return false;
        }

    /**
     * Is this token useless? In other words would rendering it have no visible effect? NL and Space are not considered
     * useless, unless they have 0 counts. Usually a token is useless because it has and empty or null text string.
     * Always false because of ''
     *
     * @return true if this token can be thrown away as useless
     */
    public boolean isUseless()
        {
        return false;
        }
    }