Improve discoverability of the expand/collapse feature.

It is now accessible via F6 when on tree view (as a bonus, it is
now also reachable via the mouse). The function bar now dynamically
changes to reflect the toggle nature of the tree-view mode (F5)
and the F6 key serves as expand/collapse when on tree mode,
and its previous behavior of bringing up the "Sort By" menu
(which only made sense on non-tree mode). Users wishing to go to
the "Sort By" menu straight from Tree View can still do so with the
"<" and ">" keys (the top-compatible keys for sort selection).

1 files changed, 2 insertions, 0 deletions

diff --git a/htop.h b/htop.h
index 7338010e..354a2f99 100644
--- a/htop.h
+++ b/htop.h
@@ -15,6 +15,8 @@ in the source distribution for its full text.
 
 typedef bool(*ForeachProcessFn)(Process*, size_t);
 
+void sortBy(Panel* panel, ProcessList* pl, Settings* settings, int headerHeight, FunctionBar* defaultBar, Header* header);
+
 int main(int argc, char** argv);
 
 #endif