This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.
This patch has been generated by P1561 followed by `make format`.
Differential Revision: https://developer.blender.org/D8466
BF-admins agree to remove header information that isn't useful,
to reduce noise.
- BEGIN/END license blocks
Developers should add non license comments as separate comment blocks.
No need for separator text.
- Contributors
This is often invalid, outdated or misleading
especially when splitting files.
It's more useful to git-blame to find out who has developed the code.
See P901 for script to perform these edits.
A few reasons motivating this change:
* It works well for all devices: mouse, trackpad, and tablet pens.
* For beginners or users coming from other software, it's easier to get
started and avoids an initial stumbling block.
* Many users in 2.7 (about half?) were already using left click select, so
combined with the above advantages it makes for a practical default.
Note that we continue to support right click select, as many experienced
Blender users (and developers) see efficiency advantages in this approach.
The option to switch is in the first time setup splash screen, and in the
user preferences.
This is needed for keymaps to define their own options,
which can include left/right mouse select.
This can also help to us to provide popular keymap tweaks as options,
so users can easily fit blender to their workflow with well supported
adjustments which don't give the overhead of having to maintain
your own keymap, which become out-dated when operators change.
Jacques Lucke
Julian Eisel
Campbell Barton
Brecht Van Lommel