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| author | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2008-11-25 12:04:30 +0000 |
|---|---|---|
| committer | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2008-11-25 12:04:30 +0000 |
| commit | 13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2 (patch) | |
| tree | 3ed3bcd97f1980169ef095a49f7facc8a0df0465 /src/main/java/com/lowagie/tools/SwingWorker.java | |
| parent | c68ad0ec056b37c82debebcecfcde1866d61b4d9 (diff) | |
| download | pdf-as-3-13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2.tar.gz pdf-as-3-13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2.tar.bz2 pdf-as-3-13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2.zip | |
Removing itext from source.
git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@302 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
Diffstat (limited to 'src/main/java/com/lowagie/tools/SwingWorker.java')
| -rw-r--r-- | src/main/java/com/lowagie/tools/SwingWorker.java | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/src/main/java/com/lowagie/tools/SwingWorker.java b/src/main/java/com/lowagie/tools/SwingWorker.java deleted file mode 100644 index 634a61a..0000000 --- a/src/main/java/com/lowagie/tools/SwingWorker.java +++ /dev/null @@ -1,127 +0,0 @@ -package com.lowagie.tools;
-import javax.swing.SwingUtilities;
-
-/**
- * This is the 3rd version of SwingWorker (also known as
- * SwingWorker 3), an abstract class that you subclass to
- * perform GUI-related work in a dedicated thread. For
- * instructions on using this class, see:
- *
- * http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
- */
-public abstract class SwingWorker {
- private Object value; // see getValue(), setValue()
- private Thread thread;
-
- /**
- * Class to maintain reference to current worker thread
- * under separate synchronization control.
- */
- private static class ThreadVar {
- private Thread thread;
- ThreadVar(Thread t) { thread = t; }
- synchronized Thread get() { return thread; }
- synchronized void clear() { thread = null; }
- }
-
- private ThreadVar threadVar;
-
- /**
- * Get the value produced by the worker thread, or null if it
- * hasn't been constructed yet.
- */
- protected synchronized Object getValueX() {
- return value;
- }
-
- /**
- * Set the value produced by worker thread
- */
- private synchronized void setValueX(Object x) {
- value = x;
- }
-
- /**
- * Compute the value to be returned by the <code>get</code> method.
- */
- public abstract Object construct();
-
- /**
- * Called on the event dispatching thread (not on the worker thread)
- * after the <code>construct</code> method has returned.
- */
- public void finished() {
- }
-
- /**
- * A new method that interrupts the worker thread. Call this method
- * to force the worker to stop what it's doing.
- */
- public void interrupt() {
- Thread t = threadVar.get();
- if (t != null) {
- t.interrupt();
- }
- threadVar.clear();
- }
-
- /**
- * Return the value created by the <code>construct</code> method.
- * Returns null if either the constructing thread or the current
- * thread was interrupted before a value was produced.
- *
- * @return the value created by the <code>construct</code> method
- */
- public Object get() {
- while (true) {
- Thread t = threadVar.get();
- if (t == null) {
- return getValueX();
- }
- try {
- t.join();
- }
- catch (InterruptedException e) {
- Thread.currentThread().interrupt(); // propagate
- return null;
- }
- }
- }
-
-
- /**
- * Start a thread that will call the <code>construct</code> method
- * and then exit.
- */
- public SwingWorker() {
- final Runnable doFinished = new Runnable() {
- public void run() { finished(); }
- };
-
- Runnable doConstruct = new Runnable() {
- public void run() {
- try {
- setValueX(construct());
- }
- finally {
- threadVar.clear();
- }
-
- SwingUtilities.invokeLater(doFinished);
- }
- };
-
- Thread t = new Thread(doConstruct);
- threadVar = new ThreadVar(t);
- }
-
- /**
- * Start the worker thread.
- */
- public void start() {
- Thread t = threadVar.get();
- if (t != null) {
- t.start();
- }
- }
-}
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