com.itextpdf.text.pdf.fonts.cmaps.AbstractCMap Maven / Gradle / Ivy
/*
* $Id: df1a2071ca3c247f0ad79b6aed1b322be21b0ac3 $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2016 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
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* it under the terms of the GNU Affero General Public License version 3
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package com.itextpdf.text.pdf.fonts.cmaps;
import com.itextpdf.text.pdf.PdfArray;
import com.itextpdf.text.pdf.PdfEncodings;
import com.itextpdf.text.pdf.PdfNumber;
import com.itextpdf.text.pdf.PdfObject;
import com.itextpdf.text.pdf.PdfString;
/**
*
* @author psoares
*/
public abstract class AbstractCMap {
private String cmapName;
private String registry;
private String ordering;
private int supplement;
public String getName() {
return cmapName;
}
void setName(String cmapName) {
this.cmapName = cmapName;
}
public String getOrdering() {
return ordering;
}
void setOrdering(String ordering) {
this.ordering = ordering;
}
public String getRegistry() {
return registry;
}
void setRegistry(String registry) {
this.registry = registry;
}
public int getSupplement() {
return supplement;
}
void setSupplement(int supplement) {
this.supplement = supplement;
}
abstract void addChar(PdfString mark, PdfObject code);
void addRange(PdfString from, PdfString to, PdfObject code) {
byte[] a1 = decodeStringToByte(from);
byte[] a2 = decodeStringToByte(to);
if (a1.length != a2.length || a1.length == 0)
throw new IllegalArgumentException("Invalid map.");
byte[] sout = null;
if (code instanceof PdfString)
sout = decodeStringToByte((PdfString)code);
int start = byteArrayToInt(a1);
int end = byteArrayToInt(a2);
for (int k = start; k <= end; ++k) {
intToByteArray(k, a1);
PdfString s = new PdfString(a1);
s.setHexWriting(true);
if (code instanceof PdfArray) {
addChar(s, ((PdfArray)code).getPdfObject(k - start));
}
else if (code instanceof PdfNumber) {
int nn = ((PdfNumber)code).intValue() + k - start;
addChar(s, new PdfNumber(nn));
}
else if (code instanceof PdfString) {
PdfString s1 = new PdfString(sout);
s1.setHexWriting(true);
++sout[sout.length - 1];
addChar(s, s1);
}
}
}
private static void intToByteArray(int v, byte[] b) {
for (int k = b.length - 1; k >= 0; --k) {
b[k] = (byte)v;
v = v >>> 8;
}
}
private static int byteArrayToInt(byte[] b) {
int v = 0;
for (int k = 0; k < b.length; ++k) {
v = v << 8;
v |= b[k] & 0xff;
}
return v;
}
public static byte[] decodeStringToByte(PdfString s) {
byte[] b = s.getBytes();
byte[] br = new byte[b.length];
System.arraycopy(b, 0, br, 0, b.length);
return br;
}
public String decodeStringToUnicode(PdfString ps) {
if (ps.isHexWriting())
return PdfEncodings.convertToString(ps.getBytes(), "UnicodeBigUnmarked");
else
return ps.toUnicodeString();
}
}