Fix crash when pasting a node as a new scene root.
Fix owner was not set correctly when copying scene root node from unsaved scene.
The owner of the root node is `nullptr`, which was ignored before.
This should result in some noticeable performance improvements,
aside from fixing bugs due to conflicts in logic.
This also simplifies some related code identified while debugging.
This makes quick pasting jobs easier when you don't want a heavily
nested structure, by pressing Ctrl + Shift + V (Cmd + Shift + V on macOS)
instead of Ctrl + V (Cmd + V on macOS).
Also start organizing editor-specific GUI components
into a dedicated folder, `editor/gui`.
Also move `editor_file_server` next to the rest of debugger classes.
Also:
- Add an option to limit the icon size in PopupMenu.
This is similar to how this works in Tree and TreeItem.
- Add the same option to TabBar.
- Add a theme constant for Tree, PopupMenu, Button, and
TabBar to apply this limit on the control level.
Co-authored-by: Daylily-Zeleen <daylily-zeleen@foxmail.com>
Make copy and pasting match duplication's ownership transferral behavior by storing ownership information in the duplicated nodes on the node clipboard, then checking that information when setting owners for pasted nodes.
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.
It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).
We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).
Also fixed "cf." Frenchism - it's meant as "refer to / see".
