"Professional CMake" book suggest the following:
"Targets should build successfully with or without compiler support for precompiled headers. It
should be considered an optimization, not a requirement. In particular, do not explicitly include a
precompile header (e.g. stdafx.h) in the source code, let CMake force-include an automatically
generated precompile header on the compiler command line instead. This is more portable across
the major compilers and is likely to be easier to maintain. It will also avoid warnings being
generated from certain code checking tools like iwyu (include what you use)."
Therefore, removed the "#include <PreCompiled.h>" from sources, also
there is no need for the "#ifdef _PreComp_" anymore
+ added some better grouping for items, which are assigned per object
right now. For example, if we exceed 10 items per object it gets an
additional group.
Co-authored-by: realthunder <realthunder@users.noreply.github.com>
When user has specified a filter for a multi selection attempt, for
example Ctrl + clicking on a disallowed edge, the visual highlighting of
previously selected valid objects (that filter allowed) would disappear,
even though they were still internally valid in selection system.
The root cause of that was that when `addSelection()` failed, the code
still applied a `SoSelectionElementAction::None` to the scene graph
path, which was clearing visual highlighting for all objects in that
path, including those valid selection.
So, the fix is to set `pPath` to `nullptr` if selection fails, to
prevent any visual action from happening and being applied, in essence
leaving correct (and existing) selection untouched.
Previously the code defined compatiblity usings in `QtOpenGL.h` header,
which I think was added for backwards compatiblity with previous Qt
OpenGL widgets.
As far as I can tell, this is not necessary anymore, and can be cleaned
up.
