Jskad/source/org/thdl/savant/TextPlayer.java
dchandler 403f21c8db Added Javadoc files overview.html and several package.html files.
Added a "Quit" option to Savant's File menu.  Factored out the Close
option in doing so.

Exceptions in many action listeners are now handled by
org.thdl.util.ThdlActionListener or org.thdl.util.ThdlAbstractAction.

Many exceptions that we used to just log now optionally cause aborts.
This option is on by default for developers using 'ant savant-run'-style
targets, but it is off for users.

An erroneous CLASSPATH now causes a useful error message in almost
all situations.

Fixed some typos and bad links in Javadoc comments.

Added a simple assertion facility, but the overhead is suffered even in
release builds.

Factored out the code that sets up log files like savant.log and jskad.log.
2002-10-06 18:23:27 +00:00

114 lines
3.2 KiB
Java

/*
The contents of this file are subject to the THDL Open Community License
Version 1.0 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License on the THDL web site
(http://www.thdl.org/).
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 terms governing rights and limitations under the
License.
The Initial Developer of this software is the Tibetan and Himalayan Digital
Library (THDL). Portions created by the THDL are Copyright 2001 THDL.
All Rights Reserved.
Contributor(s): ______________________________________.
*/
package org.thdl.savant;
import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.text.*;
import org.thdl.util.ThdlDebug;
public class TextPlayer extends JPanel implements AnnotationPlayer
{
private JTextComponent text;
private Hashtable hashStart, hashEnd, highlights;
private Highlighter highlighter;
private Highlighter.HighlightPainter highlightPainter;
public TextPlayer(JTextComponent textcomponent, Color highlightcolor, String ids, String startoffsets, String endoffsets)
{
text = textcomponent;
text.setEditable(false);
hashStart = new Hashtable();
hashEnd = new Hashtable();
highlights = new Hashtable();
StringTokenizer stIDS = new StringTokenizer(ids, ",");
StringTokenizer stSTARTS = new StringTokenizer(startoffsets, ",");
StringTokenizer stENDS = new StringTokenizer(endoffsets, ",");
while ((stIDS.hasMoreTokens()) && (stSTARTS.hasMoreTokens()) && (stENDS.hasMoreTokens())) {
String sID = stIDS.nextToken();
String sStart = stSTARTS.nextToken();
String sEnd = stENDS.nextToken();
try {
Integer start = new Integer(sStart);
hashStart.put(sID, start);
} catch (NumberFormatException err) {
hashStart.put(sID, new Integer(0));
}
try {
Integer end = new Integer(sEnd);
hashEnd.put(sID, end);
} catch (NumberFormatException err) {
hashEnd.put(sID, new Integer(0));
}
}
highlighter = text.getHighlighter();
highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(highlightcolor);
setLayout(new GridLayout(1,1));
add(new JScrollPane(text, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER));
}
public boolean isPlayableAnnotation(String id)
{
return hashStart.containsKey(id);
}
public void startAnnotation(String id)
{
if (isPlayableAnnotation(id))
highlight(id);
}
public void stopAnnotation(String id)
{
if (isPlayableAnnotation(id))
unhighlight(id);
}
private void highlight(String id)
{
try
{
Integer startInt = (Integer)hashStart.get(id);
Integer endInt = (Integer)hashEnd.get(id);
int start = startInt.intValue();
int end = endInt.intValue();
Object tag = highlighter.addHighlight(start, end, highlightPainter);
highlights.put(id, tag);
}
catch (BadLocationException ble)
{
ble.printStackTrace();
ThdlDebug.noteIffyCode();
}
}
private void unhighlight(String id)
{
if (highlights.containsKey(id))
{
highlighter.removeHighlight(highlights.get(id));
highlights.remove(id);
}
}
}