da2e00021362a366f2f3b17b238305ca7981c7d2
tdreszer
  Thu Dec 15 12:44:34 2011 -0800
Some older composites have packable children which are seen in rightClick as unpackable.  The mixed case that gives rise to this should not be allowed now, but we can support it for those older composites.  The rule is, if any single subtrack is packable, then the whole tree is.
diff --git src/hg/hgTrackUi/hgTrackUi.c src/hg/hgTrackUi/hgTrackUi.c
index daace8b..3d1475d 100644
--- src/hg/hgTrackUi/hgTrackUi.c
+++ src/hg/hgTrackUi/hgTrackUi.c
@@ -2768,36 +2768,37 @@
 if (!tdbIsDownloadsOnly(tdb))
     {
     /* Display visibility menu */
         if (tdbIsComposite(tdb) && multViewCount(tdb) > 0)
             printf("<B>Maximum&nbsp;display&nbsp;mode:&nbsp;</B>");
         else
             printf("<B>Display&nbsp;mode:&nbsp;</B>");
         if (tdbIsSuper(tdb))
             {
             superTrackDropDown(cart, tdb, 1);
             }
         else
             {
             /* normal visibility control dropdown */
             enum trackVisibility vis = tdb->visibility;
-            boolean canPack = tdb->canPack;
+            boolean canPack = rTdbTreeCanPack(tdb);
             if (ajax)
                 {
                 vis = tdbVisLimitedByAncestry(cart, tdb, TRUE);  // ajax popups should show currently inherited visability
-                if (tdbIsCompositeChild(tdb))
-                    canPack = TRUE;
+                // composite children may inherit squish/pack vis so allow it.
+                if (canPack == FALSE && tdbIsCompositeChild(tdb))
+                    canPack = rTdbTreeCanPack(tdbGetComposite(tdb));
                 }
             else
                 vis = hTvFromString(cartUsualString(cart,tdb->track, hStringFromTv(vis))); // But hgTrackUi page should show local vis
             hTvDropDownClassVisOnlyAndExtra(tdb->track,vis,
                 canPack, "normalText visDD", trackDbSetting(tdb, "onlyVisibility"),
                                 (tdb->parent != NULL ?"onchange='return visTriggersHiddenSelect(this);'":NULL));
             }
     if (!ajax)
         {
         printf("&nbsp;");
         cgiMakeButton("Submit", "Submit");
     #ifdef SUBTRACK_CFG
         // Offer cancel button always?     // composites and multiTracks (not standAlones or supers)
         if (tdbIsContainer(tdb))
             {