+ } catch (Exception ex)
+ {
+ }
+ }
+ SeqPanel.this.scrollThread = null;
+ }
+
+ /**
+ * Scrolls
+ * <ul>
+ * <li>one row up, if the mouse is above the panel</li>
+ * <li>one row down, if the mouse is below the panel</li>
+ * <li>one column left, if the mouse is left of the panel</li>
+ * <li>one column right, if the mouse is right of the panel</li>
+ * </ul>
+ * Answers true if a scroll was performed, false if not - meaning either
+ * that the mouse position is within the panel, or the edge of the alignment
+ * has been reached.
+ */
+ boolean scrollOnce()
+ {
+ /*
+ * quit after mouseUp ensures interrupt in JalviewJS
+ */
+ if (!mouseDragging)
+ {
+ return false;
+ }
+
+ boolean scrolled = false;
+ ViewportRanges ranges = SeqPanel.this.av.getRanges();
+
+ /*
+ * scroll up or down
+ */
+ if (mousePos.y < 0)
+ {
+ // mouse is above this panel - try scroll up
+ scrolled = ranges.scrollUp(true);
+ }
+ else if (mousePos.y >= getHeight())
+ {
+ // mouse is below this panel - try scroll down
+ scrolled = ranges.scrollUp(false);
+ }
+
+ /*
+ * scroll left or right
+ */
+ if (mousePos.x < 0)
+ {
+ scrolled |= ranges.scrollRight(false);
+ }
+ else if (mousePos.x >= getWidth())
+ {
+ scrolled |= ranges.scrollRight(true);
+ }
+ return scrolled;
+ }
+ }
+
+ /**
+ * modify current selection according to a received message.
+ */
+ @Override
+ public void selection(SequenceGroup seqsel, ColumnSelection colsel,
+ HiddenColumns hidden, SelectionSource source)
+ {
+ // TODO: fix this hack - source of messages is align viewport, but SeqPanel
+ // handles selection messages...
+ // TODO: extend config options to allow user to control if selections may be
+ // shared between viewports.
+ boolean iSentTheSelection = (av == source
+ || (source instanceof AlignViewport
+ && ((AlignmentViewport) source).getSequenceSetId()
+ .equals(av.getSequenceSetId())));
+
+ if (iSentTheSelection)
+ {
+ // respond to our own event by updating dependent dialogs
+ if (ap.getCalculationDialog() != null)
+ {
+ ap.getCalculationDialog().validateCalcTypes();
+ }
+
+ return;
+ }
+
+ // process further ?
+ if (!av.followSelection)
+ {
+ return;
+ }
+
+ /*
+ * Ignore the selection if there is one of our own pending.
+ */
+ if (av.isSelectionGroupChanged(false) || av.isColSelChanged(false))
+ {
+ return;
+ }
+
+ /*
+ * Check for selection in a view of which this one is a dna/protein
+ * complement.
+ */
+ if (selectionFromTranslation(seqsel, colsel, hidden, source))
+ {
+ return;
+ }
+
+ // do we want to thread this ? (contention with seqsel and colsel locks, I
+ // suspect)
+ /*
+ * only copy colsel if there is a real intersection between
+ * sequence selection and this panel's alignment
+ */
+ boolean repaint = false;
+ boolean copycolsel = false;
+
+ SequenceGroup sgroup = null;
+ if (seqsel != null && seqsel.getSize() > 0)
+ {
+ if (av.getAlignment() == null)
+ {
+ Cache.log.warn("alignviewport av SeqSetId=" + av.getSequenceSetId()
+ + " ViewId=" + av.getViewId()
+ + " 's alignment is NULL! returning immediately.");
+ return;
+ }
+ sgroup = seqsel.intersect(av.getAlignment(),
+ (av.hasHiddenRows()) ? av.getHiddenRepSequences() : null);
+ if ((sgroup != null && sgroup.getSize() > 0))
+ {
+ copycolsel = true;
+ }
+ }
+ if (sgroup != null && sgroup.getSize() > 0)
+ {
+ av.setSelectionGroup(sgroup);
+ }
+ else
+ {
+ av.setSelectionGroup(null);
+ }
+ av.isSelectionGroupChanged(true);
+ repaint = true;
+
+ if (copycolsel)
+ {
+ // the current selection is unset or from a previous message
+ // so import the new colsel.
+ if (colsel == null || colsel.isEmpty())
+ {
+ if (av.getColumnSelection() != null)
+ {
+ av.getColumnSelection().clear();
+ repaint = true;
+ }
+ }
+ else
+ {
+ // TODO: shift colSel according to the intersecting sequences
+ if (av.getColumnSelection() == null)
+ {
+ av.setColumnSelection(new ColumnSelection(colsel));