tree 1f1a4dcb2a115e256281d0395a719b0ba08252d3
parent dd41ad70370aa7f2e8e5a1bf2103b316874bf3f6
author Paul D'Pong <sdamrong@redhat.com> 1614981664 -0500
committer Alexander Kurtakov <akurtako@redhat.com> 1616614363 -0400

Bug 568185 - [GTK4] Port SWT Tree snippets - Header button set visible
when Tree disables headers

- Place GTK4 guard on forcing the column.buttonHandle visibility to true
in computeSizeInPixels. Fixes GTK4 initial GtkTreeView allocation
errors.

- Improve readability in TreeColumn.pack when setting visibility of
buttonHandle

Change-Id: Id741f09aace11b43099fa2726af9f80d9074b6a4
Signed-off-by: Paul D'Pong <sdamrong@redhat.com>