+ /**
+ * static hyperlink handler proxy method for use by Jalview's internal windows
+ *
+ * @param e
+ */
+ public static void hyperlinkUpdate(HyperlinkEvent e)
+ {
+ if (e.getEventType() == EventType.ACTIVATED)
+ {
+ String url = null;
+ try
+ {
+ url = e.getURL().toString();
+ Desktop.showUrl(url);
+ } catch (Exception x)
+ {
+ if (url != null)
+ {
+ if (Cache.log != null)
+ {
+ Cache.log.error("Couldn't handle string " + url + " as a URL.");
+ }
+ else
+ {
+ System.err.println("Couldn't handle string " + url
+ + " as a URL.");
+ }
+ }
+ // ignore any exceptions due to dud links.
+ }
+
+ }
+ }
+
+ /**
+ * single thread that handles display of dialogs to user.
+ */
+ ExecutorService dialogExecutor = Executors.newSingleThreadExecutor();
+
+ /**
+ * flag indicating if dialogExecutor should try to acquire a permit
+ */
+ private volatile boolean dialogPause = true;
+
+ /**
+ * pause the queue
+ */
+ private java.util.concurrent.Semaphore block = new Semaphore(0);
+
+ /**
+ * add another dialog thread to the queue
+ *
+ * @param prompter
+ */
+ public void addDialogThread(final Runnable prompter)
+ {
+ dialogExecutor.submit(new Runnable()
+ {
+ public void run()
+ {
+ if (dialogPause)
+ {
+ try
+ {
+ block.acquire();
+ } catch (InterruptedException x)
+ {
+ }
+ ;
+ }
+ if (instance == null)
+ {
+ return;
+ }
+ try
+ {
+ SwingUtilities.invokeAndWait(prompter);
+ } catch (Exception q)
+ {
+ Cache.log.warn("Unexpected Exception in dialog thread.", q);
+ }
+ }
+ });
+ }
+
+ public void startDialogQueue()
+ {
+ // set the flag so we don't pause waiting for another permit and semaphore
+ // the current task to begin
+ dialogPause = false;
+ block.release();
+ }
+ @Override
+ protected void snapShotWindow_actionPerformed(ActionEvent e)
+ {
+ invalidate();
+ File of;
+ ImageMaker im = new jalview.util.ImageMaker(this, ImageMaker.TYPE.EPS,
+ "View of Desktop", getWidth(), getHeight(), of = new File(
+ "Jalview_snapshot" + System.currentTimeMillis()
+ + ".eps"), "View of desktop");
+ try {
+ paintAll(im.getGraphics());
+ im.writeImage();
+ } catch (Exception q)
+ {
+ Cache.log.error("Couldn't write snapshot to "+of.getAbsolutePath(),q);
+ return;
+ }
+ Cache.log.info("Successfully written snapshot to file "+of.getAbsolutePath());
+ }