109 lines
4.1 KiB
Java
109 lines
4.1 KiB
Java
/*
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The contents of this file are subject to the THDL Open Community License
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Version 1.0 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License on the THDL web site
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(http://www.thdl.org/).
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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License for the specific terms governing rights and limitations under the
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License.
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The Initial Developer of this software is the Tibetan and Himalayan Digital
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Library (THDL). Portions created by the THDL are Copyright 2004 THDL.
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All Rights Reserved.
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Contributor(s): ______________________________________.
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*/
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package org.thdl.tib.text;
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import java.util.Vector;
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/**
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* A mutable representation of Roman transliteration with font size
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* information for each character of transliteration.
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*
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* @author David Chandler */
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class TranslitList {
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/** Invariant: For all 0<=i<length(),
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((TranslitTuple)vec.get(i)).getFontSize() !=
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((TranslitTuple)vec.get(i+1)).getFontSize(). */
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private final Vector /* of TranslitTuple */ vec;
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/** Creates an empty list. */
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public TranslitList() {
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this.vec = new Vector();
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}
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/** Returns the number of TranslitTuples in this list. */
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public int length() {
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return vec.size();
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}
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public TranslitTuple get(int i) throws ArrayIndexOutOfBoundsException {
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return (TranslitTuple)vec.get(i);
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}
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/** Appends to the end of this list a single character of Roman
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transliteration with the given font size. The last element of
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this list will have s appended to it if font sizes are the
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same; otherwise this list grows by an element. */
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public void append(char ch, int fontSize) {
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append(new String(new char[] { ch }), fontSize);
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}
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/** Appends to the end of this list a stretch s of Roman
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transliteration that has font size fontSize. The last element
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of this list will have s appended to it if font sizes are the
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same; otherwise this list grows by an element. */
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public void append(String s, int fontSize) {
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if (vec.isEmpty()) {
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vec.add(new TranslitTuple(s, fontSize));
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} else {
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TranslitTuple tt = (TranslitTuple)vec.lastElement();
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TranslitTuple newtt
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= tt.getPossiblyCombinedTranslitTuple(s, fontSize);
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if (tt != newtt)
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vec.add(newtt);
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}
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}
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/** Appends to the end of this list another TranslitList. The
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length of this list may or may not increase; the first element
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of tb and the last element of this list will be merged if
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their font sizes are the same. */
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public void append(TranslitList tb) {
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if (this == tb)
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throw new IllegalArgumentException("Cannot be this list, that would be bad!");
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if (this.vec.isEmpty() || tb.vec.isEmpty()) {
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this.vec.addAll(tb.vec);
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} else {
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int lbefore = this.length();
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this.vec.addAll(tb.vec);
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if (((TranslitTuple)tb.vec.firstElement()).getFontSize()
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== ((TranslitTuple)this.vec.lastElement()).getFontSize()) {
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// merge stretches with the same font size.
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TranslitTuple a = (TranslitTuple)this.vec.remove(lbefore-1);
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this.vec.set(lbefore-1,
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a.getPossiblyCombinedTranslitTuple(((TranslitTuple)this.vec.get(lbefore-1)).getTranslit(),
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((TranslitTuple)this.vec.get(lbefore-1)).getFontSize()));
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}
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}
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}
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/** Do not call this -- it throws an error. */
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public String toString() {
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throw new Error("There was a bug where this was called, so don't call this.");
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}
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/** Returns the full Roman transliteration. You don't get font
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size information this way, of course. */
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public String getString() {
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < length(); i++) {
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sb.append(get(i).getTranslit());
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}
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return sb.toString();
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}
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}
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