but for that to survive resizing, I might need to store the points as
doubles, etc. It should be possible to reconstruct it from the
existing EvViewSelection structs, so maybe I don't need it.
+
+Things that can add to the selection:
+ * C-a/select all
+ * click-drag
+ * dbl click
+ * triple click
+ * shift-click
+ * search
+ * shift-cursor move (later)