* The GUIInvoke object takes a QObject, and uses QPointer to check that
it hasn't been deleted when the callback fires. This prevents delayed
callbacks from executing after the object has been deleted and
crashing.
* In most cases the pointer is just 'this'.
Disable the warning on 3rdparty files
${glslang_dir}/hlsl/hlslParseHelper.cpp
Disable the warning on files where fixing it would cause a non-OSX compile error
os/os_specific.cpp
* Because many of QHeaderView's functions are annoyingly not virtual,
we need some stub data available in QHeaderView even if it won't be
used for anything much, like the number of sections.
* The basic idea here is to have a reasonable middleground between
ResizeToContents and Stretch. We want to show at *least* enough for
the contents, but the remaining space should be shared between the
columns according to some proportions.
* That way you don't end up with one huge column and several tiny ones
that are just big enough but no more, but all data is still visible.
* This is used primarily for the buffer/mesh viewer to be able to pin
the index/element column to the left side, group columns together with
a noticeable separator, and other minor tweaks.
* Unfortunately due to tight private coupling and lack of virtual
functions in the QTableView and QHeaderView, a few unrelated functions
have to be re-implemented to point to our own header.
* Annoyingly although Qt has an internal bool allowUserMoveOfSection0
which does exactly what we want allowing the tree column to be
movable, we can't enable it because it's private. So instead we have
to re-implement section moving ourselves.
* Minor tweak - also made RDTreeWidgets non-movable by default since
usually we don't want to allow it.
baldurk