com.lowagie.text.html.simpleparser.ChainedProperties Maven / Gradle / Ivy
/*
* Copyright 2004 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
* Contributions by:
* Lubos Strapko
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package com.lowagie.text.html.simpleparser;
import com.lowagie.text.ElementTags;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
public class ChainedProperties {
public final static int[] fontSizes = {8, 10, 12, 14, 18, 24, 36};
/**
* Will be replaced with types alternative
*/
public ArrayList chain = new ArrayList<>();
/**
* Creates a new instance of ChainedProperties
*/
public ChainedProperties() {
}
public String getProperty(String key) {
return findProperty(key).orElse(null);
}
/**
* Try find property by its name
*
* @param key property name
* @return {@link Optional} containing the value or {@link Optional#empty()} if there is no value or
* it equals {@code null}
*/
public Optional findProperty(String key) {
for (int k = chain.size() - 1; k >= 0; --k) {
Object[] obj = chain.get(k);
HashMap prop = (HashMap) obj[1];
String ret = (String) prop.get(key);
if (ret != null) {
return Optional.of(ret);
}
}
return Optional.empty();
}
/**
* Get property by its name or return default value when property is not present or is null
*
* @param key property name
* @param defaultValue default property value
* @return property or default value if it's null
*/
public String getOrDefault(String key, String defaultValue) {
return findProperty(key).orElse(defaultValue);
}
public boolean hasProperty(String key) {
for (int k = chain.size() - 1; k >= 0; --k) {
Object[] obj = (Object[]) chain.get(k);
HashMap prop = (HashMap) obj[1];
if (prop.containsKey(key))
return true;
}
return false;
}
public void addToChain(String key, Map prop) {
// adjust the font size
String value = prop.get(ElementTags.SIZE);
if (value != null) {
if (value.endsWith("pt")) {
prop.put(ElementTags.SIZE, value.substring(0,
value.length() - 2));
} else {
int s = 0;
if (value.startsWith("+") || value.startsWith("-")) {
String old = getOrDefault("basefontsize", "12");
float f = Float.parseFloat(old);
int c = (int) f;
for (int k = fontSizes.length - 1; k >= 0; --k) {
if (c >= fontSizes[k]) {
s = k;
break;
}
}
int inc = Integer.parseInt(value.startsWith("+") ? value
.substring(1) : value);
s += inc;
} else {
try {
s = Integer.parseInt(value) - 1;
} catch (NumberFormatException nfe) {
s = 0;
}
}
if (s < 0)
s = 0;
else if (s >= fontSizes.length)
s = fontSizes.length - 1;
prop.put(ElementTags.SIZE, Integer.toString(fontSizes[s]));
}
}
chain.add(new Object[]{key, prop});
}
public void removeChain(String key) {
for (int k = chain.size() - 1; k >= 0; --k) {
if (key.equals(((Object[]) chain.get(k))[0])) {
chain.remove(k);
return;
}
}
}
}