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/*
* This file is part of the pdftk port to java
*
* Copyright (c) Marc Vinyals 2017-2018
*
* The program is a java port of PDFtk, the PDF Toolkit
* Copyright (c) 2003-2013 Steward and Lee, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* The program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.gitlab.pdftk_java;
import com.gitlab.pdftk_java.com.lowagie.text.pdf.PdfDictionary;
import com.gitlab.pdftk_java.com.lowagie.text.pdf.PdfName;
import com.gitlab.pdftk_java.com.lowagie.text.pdf.PdfPageLabels;
import java.util.ArrayList;
import java.util.HashMap;
class PdfPageLabel {
static final String PREFIX = "PageLabel";
static final String BEGIN_MARK = "PageLabelBegin";
static final String NEW_INDEX_LABEL = "PageLabelNewIndex:";
static final String START_LABEL = "PageLabelStart:";
static final String PREFIX_LABEL = "PageLabelPrefix:";
static final String NUM_STYLE_LABEL = "PageLabelNumStyle:";
enum NumberingStyle {
DECIMAL_ARABIC_NUMERALS(
PdfPageLabels.DECIMAL_ARABIC_NUMERALS, "DecimalArabicNumerals", PdfName.D),
UPPERCASE_ROMAN_NUMERALS(
PdfPageLabels.UPPERCASE_ROMAN_NUMERALS, "UppercaseRomanNumerals", PdfName.R),
LOWERCASE_ROMAN_NUMERALS(
PdfPageLabels.LOWERCASE_ROMAN_NUMERALS, "LowercaseRomanNumerals", new PdfName("r")),
UPPERCASE_LETTERS(PdfPageLabels.UPPERCASE_LETTERS, "UppercaseLetters", PdfName.A),
LOWERCASE_LETTERS(PdfPageLabels.LOWERCASE_LETTERS, "LowercaseLetters", new PdfName("a")),
EMPTY(PdfPageLabels.EMPTY, "NoNumber", null),
ERROR(-1, "[PDFTK ERROR]", null);
final int value;
final String representation;
final PdfName tag;
static final HashMap<String, NumberingStyle> fromString = new HashMap<String, NumberingStyle>();
static final HashMap<PdfName, NumberingStyle> fromPdfName =
new HashMap<PdfName, NumberingStyle>();
static {
for (NumberingStyle style : NumberingStyle.values()) {
fromString.put(style.representation, style);
fromPdfName.put(style.tag, style);
}
}
NumberingStyle(int value, String representation, PdfName tag) {
this.value = value;
this.representation = representation;
this.tag = tag;
}
}
int m_new_index = -1;
int m_start = -1;
String m_prefix = null;
String m_num_style = null;
boolean valid() {
return m_new_index > 0
&& m_start > 0
&& m_num_style != null
&& NumberingStyle.fromString.containsKey(m_num_style);
}
public String toString() {
StringBuilder ss = new StringBuilder();
ss.append(BEGIN_MARK + System.lineSeparator());
ss.append(NEW_INDEX_LABEL + " " + m_new_index + System.lineSeparator());
ss.append(START_LABEL + " " + m_start + System.lineSeparator());
if (m_prefix != null) {
ss.append(PREFIX_LABEL + " " + m_prefix + System.lineSeparator());
}
ss.append(NUM_STYLE_LABEL + " " + m_num_style + System.lineSeparator());
return ss.toString();
}
static PdfDictionary BuildPageLabels(ArrayList<PdfPageLabel> pagelabels_data) {
PdfPageLabels pagelabels = new PdfPageLabels();
for (PdfPageLabel pagelabel : pagelabels_data) {
int num_style = NumberingStyle.fromString.get(pagelabel.m_num_style).value;
pagelabels.addPageLabel(
pagelabel.m_new_index, num_style, pagelabel.m_prefix, pagelabel.m_start);
}
return pagelabels.getDictionary();
}
boolean loadPrefix(String buff) {
LoadableString loader = new LoadableString(m_prefix);
boolean success = loader.LoadString(buff, PREFIX_LABEL);
m_prefix = loader.ss;
return success;
}
boolean loadNumStyle(String buff) {
LoadableString loader = new LoadableString(m_num_style);
boolean success = loader.LoadEnum(buff, NUM_STYLE_LABEL, NumberingStyle.fromString.keySet());
if (success) m_num_style = loader.ss;
return success;
}
boolean loadNewIndex(String buff) {
LoadableInt loader = new LoadableInt(m_new_index);
boolean success = loader.LoadInt(buff, NEW_INDEX_LABEL);
m_new_index = loader.ii;
return success;
}
boolean loadStart(String buff) {
LoadableInt loader = new LoadableInt(m_start);
boolean success = loader.LoadInt(buff, START_LABEL);
m_start = loader.ii;
return success;
}
}
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