import jalview.util.MessageManager;
import jalview.util.Platform;
import jalview.viewmodel.AlignmentViewport;
+import jalview.viewmodel.ViewportRanges;
import java.awt.BorderLayout;
import java.awt.event.MouseEvent;
{
if (scrollThread != null)
{
- scrollThread.running = false;
+ scrollThread.stopScrolling();
}
}
{
if (scrollThread != null)
{
- scrollThread.running = false;
+ scrollThread.stopScrolling();
}
MousePos pos = alignPanel.getSeqPanel().findMousePosition(e);
{
getIdCanvas().setHighlighted(list);
- if (list == null)
+ if (list == null || list.isEmpty())
{
return;
}
this.idCanvas = idCanvas;
}
- // this class allows scrolling off the bottom of the visible alignment
+ /**
+ * Performs scrolling of the visible alignment up or down, adding newly
+ * visible sequences to the current selection
+ */
class ScrollThread extends Thread
{
- boolean running = false;
+ private boolean running = false;
- boolean up = true;
+ private boolean up;
+ /**
+ * Constructor for a thread that scrolls either up or down
+ *
+ * @param up
+ */
public ScrollThread(boolean up)
{
this.up = up;
+ setName("IdPanel$ScrollThread$" + String.valueOf(up));
start();
}
+ /**
+ * Sets a flag to stop the scrolling
+ */
public void stopScrolling()
{
running = false;
}
+ /**
+ * Scrolls the alignment either up or down, one row at a time, adding newly
+ * visible sequences to the current selection. Speed is limited to a maximum
+ * of ten rows per second. The thread exits when the end of the alignment is
+ * reached or a flag is set to stop it.
+ */
@Override
public void run()
{
while (running)
{
- if (av.getRanges().scrollUp(up))
+ ViewportRanges ranges = IdPanel.this.av.getRanges();
+ if (ranges.scrollUp(up))
{
- // scroll was ok, so add new sequence to selection
- int seq = av.getRanges().getStartSeq();
-
- if (!up)
- {
- seq = av.getRanges().getEndSeq();
- }
-
- if (seq < lastid)
- {
- selectSeqs(lastid - 1, seq);
- }
- else if (seq > lastid)
- {
- selectSeqs(lastid + 1, seq);
- }
-
- lastid = seq;
+ int toSeq = up ? ranges.getStartSeq() : ranges.getEndSeq();
+ int fromSeq = toSeq < lastid ? lastid - 1 : lastid + 1;
+ IdPanel.this.selectSeqs(fromSeq, toSeq);
+
+ lastid = toSeq;
}
else
{
+ /*
+ * scroll did nothing - reached limit of visible alignment
+ */
running = false;
}