org.jpedal.fonts.tt.Name Maven / Gradle / Ivy

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/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2017 IDRsolutions and Contributors.
 *
 * This file is part of JPedal/JPDF2HTML5
 *
 @LICENSE@
 *
 * ---------------
 * Name.java
 * ---------------
 */
package org.jpedal.fonts.tt;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

/**
 * font strings partially implemented - full spec is at http://www.microsoft.com/OpenType/OTSpec/name.htm
 */
@SuppressWarnings("UnusedDeclaration")
public class Name extends Table {

    /**
     * max number of glyphs
     */
    private int encoding;

    private final Map strings = new HashMap();

    public static final Integer COPYRIGHT_NOTICE = 0;
    public static final Integer FONT_FAMILY_NAME = 1;
    public static final Integer FONT_SUBFAMILY_NAME = 2;
    public static final Integer UNIQUE_FONT_IDENTIFIER = 3;
    public static final Integer FULL_FONT_NAME = 4;
    public static final Integer VERSION_STRING = 5;
    public static final Integer POSTSCRIPT_NAME = 6;
    public static final Integer TRADEMARK = 7;
    public static final Integer MANUFACTURER = 8;
    public static final Integer DESIGNER = 9;
    public static final Integer DESCRIPTION = 10;
    public static final Integer VENDOR_URL = 11;
    public static final Integer DESIGNER_URL = 12;
    public static final Integer LICENSE = 13;
    public static final Integer LICENSE_URL = 14;
    public static final Integer PREFERRED_FAMILY = 16;
    public static final Integer PREFERRED_SUBFAMILY = 17;
    public static final Integer COMPATIBLE = 18;
    public static final Integer SAMPLE_TEXT = 19;

    /**
     * list of Integer values in same order as keys
     */
    public static final String[] stringNames = {"COPYRIGHT_NOTICE", "FONT_FAMILY_NAME", "FONT_SUBFAMILY_NAME",
            "UNIQUE_FONT_IDENTIFIER", "FULL_FONT_NAME", "VERSION_STRING", "POSTSCRIPT_NAME",
            "TRADEMARK", "MANUFACTURER", "DESIGNER", "DESCRIPTION", "VENDOR_URL",
            "DESIGNER_URL", "LICENSE", "LICENSE_URL", "PREFERRED_FAMILY",
            "PREFERRED_SUBFAMILY", "COMPATIBLE", "SAMPLE_TEXT"};

    public Name(final FontFile2 currentFontFile) {

        //LogWriter.writeMethod("{readMapxTable}", 0);

        //move to start and check exists
        final int startPointer = currentFontFile.selectTable(FontFile2.NAME);

        //read 'head' table
        if (startPointer != 0) {

            //read global details
            currentFontFile.getNextUint16(); //format
            final int count = currentFontFile.getNextUint16();
            final int offset = currentFontFile.getNextUint16();

            /*
             * read strings
             */
            for (int i = 0; i < count; i++) {

                //get table values
                final int platformID = currentFontFile.getNextUint16();
                final int platformSpecificID = currentFontFile.getNextUint16();
                final int langID = currentFontFile.getNextUint16();
                final int nameID = currentFontFile.getNextUint16();
                int length = currentFontFile.getNextUint16();
                final int offset2 = currentFontFile.getNextUint16();

                //only these 2 variations at present
                if ((platformID == 1 && platformSpecificID == 0 && langID == 0) ||
                        (platformID == 3 && platformSpecificID == 0 && langID == 1033) ||
                        (platformID == 3 && platformSpecificID == 1 && langID == 1033)) {

                    //read actual string for location, altering/restoring pointers
                    final int oldP = currentFontFile.getPointer();

                    currentFontFile.setPointer(startPointer + offset + offset2);

                    int nextChar;

                    //allow for 2 bytes in char
                    if (platformID == 0 || platformID == 3) {
                        length /= 2;
                    }

                    final StringBuilder s = new StringBuilder();
                    s.setLength(length);

                    for (int ii = 0; ii < length; ii++) {
                        if (platformID == 0 || platformID == 3) {
                            nextChar = currentFontFile.getNextUint16();
                        } else {
                            nextChar = currentFontFile.getNextUint8();
                        }

                        s.setCharAt(ii, (char) nextChar);
                    }

                    final String str = s.toString();

                    if (str != null) {
                        strings.put(nameID, str);
                    }

                    currentFontFile.setPointer(oldP);
                }
            }
        }
    }

    public Name() {
    }

    /**
     * get Map of Strings - key is Integer key and String value is in
     */
    public Map getStrings() {
        return Collections.unmodifiableMap(strings);
    }

    public int getEncoding() {
        return encoding;
    }

    /**
     * return a String value in font - keys also defined as Integers in NAME class
     * 
     * not all encodings or ID 20 handled at present
     */
    public String getString(final Integer id) {
        return strings.get(id);
    }
}