);
scalePanel.mousePressed(mouse);
scalePanel.mouseDragged(mouse);
+
+ // simulate dragging selection leftwards beyond the sequences giving
+ // negative X
mouse = new MouseEvent(scalePanel, 0, 1, 0, -30, 0, 1, false);
+
scalePanel.mouseReleased(mouse);
SequenceGroup sg = scalePanel.av.getSelectionGroup();