001: /*
002: * Copyright 2004 Paulo Soares
003: *
004: * The contents of this file are subject to the Mozilla Public License Version 1.1
005: * (the "License"); you may not use this file except in compliance with the License.
006: * You may obtain a copy of the License at http://www.mozilla.org/MPL/
007: *
008: * Software distributed under the License is distributed on an "AS IS" basis,
009: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
010: * for the specific language governing rights and limitations under the License.
011: *
012: * The Original Code is 'iText, a free JAVA-PDF library'.
013: *
014: * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
015: * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
016: * All Rights Reserved.
017: * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
018: * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
019: *
020: * Contributor(s): all the names of the contributors are added in the source code
021: * where applicable.
022: *
023: * Alternatively, the contents of this file may be used under the terms of the
024: * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
025: * provisions of LGPL are applicable instead of those above. If you wish to
026: * allow use of your version of this file only under the terms of the LGPL
027: * License and not to allow others to use your version of this file under
028: * the MPL, indicate your decision by deleting the provisions above and
029: * replace them with the notice and other provisions required by the LGPL.
030: * If you do not delete the provisions above, a recipient may use your version
031: * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
032: *
033: * This library is free software; you can redistribute it and/or modify it
034: * under the terms of the MPL as stated above or under the terms of the GNU
035: * Library General Public License as published by the Free Software Foundation;
036: * either version 2 of the License, or any later version.
037: *
038: * This library is distributed in the hope that it will be useful, but WITHOUT
039: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
040: * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
041: * details.
042: *
043: * If you didn't download this code from the following link, you should check if
044: * you aren't using an obsolete version:
045: * http://www.lowagie.com/iText/
046: */
047:
048: package com.lowagie.text.html.simpleparser;
049:
050: import java.util.ArrayList;
051: import java.util.HashMap;
052:
053: public class ChainedProperties {
054:
055: public final static int fontSizes[] = { 8, 10, 12, 14, 18, 24, 36 };
056: public ArrayList chain = new ArrayList();
057:
058: /** Creates a new instance of ChainedProperties */
059: public ChainedProperties() {
060: }
061:
062: public String getProperty(String key) {
063: for (int k = chain.size() - 1; k >= 0; --k) {
064: Object obj[] = (Object[]) chain.get(k);
065: HashMap prop = (HashMap) obj[1];
066: String ret = (String) prop.get(key);
067: if (ret != null)
068: return ret;
069: }
070: return null;
071: }
072:
073: public boolean hasProperty(String key) {
074: for (int k = chain.size() - 1; k >= 0; --k) {
075: Object obj[] = (Object[]) chain.get(k);
076: HashMap prop = (HashMap) obj[1];
077: if (prop.containsKey(key))
078: return true;
079: }
080: return false;
081: }
082:
083: public void addToChain(String key, HashMap prop) {
084: // adjust the font size
085: String value = (String) prop.get("size");
086: if (value != null) {
087: if (value.endsWith("px")) {
088: prop
089: .put("size", value.substring(0,
090: value.length() - 2));
091: } else {
092: int s = 0;
093: if (value.startsWith("+") || value.startsWith("-")) {
094: String old = getProperty("basefontsize");
095: if (old == null)
096: old = "12";
097: float f = Float.parseFloat(old);
098: int c = (int) f;
099: for (int k = fontSizes.length - 1; k >= 0; --k) {
100: if (c >= fontSizes[k]) {
101: s = k;
102: break;
103: }
104: }
105: int inc = Integer
106: .parseInt(value.startsWith("+") ? value
107: .substring(1) : value);
108: s += inc;
109: } else {
110: try {
111: s = Integer.parseInt(value) - 1;
112: } catch (NumberFormatException nfe) {
113: s = 0;
114: }
115: }
116: if (s < 0)
117: s = 0;
118: else if (s >= fontSizes.length)
119: s = fontSizes.length - 1;
120: prop.put("size", Integer.toString(fontSizes[s]));
121: }
122: }
123: chain.add(new Object[] { key, prop });
124: }
125:
126: public void removeChain(String key) {
127: for (int k = chain.size() - 1; k >= 0; --k) {
128: if (key.equals(((Object[]) chain.get(k))[0])) {
129: chain.remove(k);
130: return;
131: }
132: }
133: }
134: }
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