115 lines
3.2 KiB
Java
115 lines
3.2 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 2001 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.savant;
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import java.awt.*;
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import java.util.*;
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import javax.swing.*;
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import javax.swing.text.*;
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import org.thdl.util.ThdlDebug;
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public class TextPlayer extends JPanel implements AnnotationPlayer
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{
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private JTextComponent text;
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private Hashtable hashStart, hashEnd, highlights;
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private Highlighter highlighter;
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private Highlighter.HighlightPainter highlightPainter;
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public TextPlayer(JTextComponent textcomponent, Color highlightcolor, String ids, String startoffsets, String endoffsets)
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{
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text = textcomponent;
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text.setEditable(false);
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hashStart = new Hashtable();
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hashEnd = new Hashtable();
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highlights = new Hashtable();
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StringTokenizer stIDS = new StringTokenizer(ids, ",");
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StringTokenizer stSTARTS = new StringTokenizer(startoffsets, ",");
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StringTokenizer stENDS = new StringTokenizer(endoffsets, ",");
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while ((stIDS.hasMoreTokens()) && (stSTARTS.hasMoreTokens()) && (stENDS.hasMoreTokens())) {
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String sID = stIDS.nextToken();
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String sStart = stSTARTS.nextToken();
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String sEnd = stENDS.nextToken();
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try {
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Integer start = new Integer(sStart);
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hashStart.put(sID, start);
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} catch (NumberFormatException err) {
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hashStart.put(sID, new Integer(0));
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}
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try {
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Integer end = new Integer(sEnd);
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hashEnd.put(sID, end);
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} catch (NumberFormatException err) {
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hashEnd.put(sID, new Integer(0));
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}
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}
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highlighter = text.getHighlighter();
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highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(highlightcolor);
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setLayout(new GridLayout(1,1));
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add(new JScrollPane(text, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER));
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}
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public boolean isPlayableAnnotation(String id)
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{
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return hashStart.containsKey(id);
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}
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public void startAnnotation(String id)
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{
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if (isPlayableAnnotation(id))
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highlight(id);
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}
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public void stopAnnotation(String id)
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{
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if (isPlayableAnnotation(id))
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unhighlight(id);
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}
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private void highlight(String id)
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{
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try
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{
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Integer startInt = (Integer)hashStart.get(id);
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Integer endInt = (Integer)hashEnd.get(id);
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int start = startInt.intValue();
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int end = endInt.intValue();
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Object tag = highlighter.addHighlight(start, end, highlightPainter);
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highlights.put(id, tag);
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}
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catch (BadLocationException ble)
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{
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ble.printStackTrace();
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ThdlDebug.noteIffyCode();
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}
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}
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private void unhighlight(String id)
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{
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if (highlights.containsKey(id))
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{
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highlighter.removeHighlight(highlights.get(id));
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highlights.remove(id);
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}
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}
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}
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