This PR implements:
* A new hint: PROPERTY_HINT_NODE_TYPE for variant type OBJECT, which can take specific node types as hint string.
* The editor will show it as a node path, but will set it as a pointer to a node from the current scene if you select a path.
* When scene is saved, the node path is saved, then restored as a pointer.
NOTE: This is a proof of concept and this approach will most likely not work. The reason if that, if the node referenced is deleted, then when trying to edit this the node will become invalid.
Potential workarounds: Since this uses the Variant API, it should obtain the pointer from the Variant object ID. Yet, this would either only really work in GDScript or it would need to be implemented with workarounds in every language.
Alternative ways to make this work: Nodes could export an additional property with a node path (like for which_node, it could be which_node_path).
Another alternative: Path editing could happen as a hidden metadata (ignoring the pointer).
- Adds rounded corners to the EditorProperty child background, EditorSpinSlider label background, and resource sub-inspector borders and background.
- Allows customizing EditorSpinSlider label background through a new Theme StyleBox property, label_bg.
- Makes margins consistent in resource sub-inspectors.
- Removes space between buttons in NodePath, Resource, and multiline string editors.
- Adds space between label background and content for vertical property editors.
Problem:
* Region rect was pretty much a hidden editor. Because it was annoying for it to pop up automatically, it did not.
* Because it did not, most users have no idea it even exists.
* But because it is a transient editor, it would steal focus of other editor and annoy users.
Solution:
* Editor has been moved to a window.
* Regions that can be edited add a button below the region which can be pressed to open the editor.
This required a slight change in EditorInspectorPlugin to allow custom editors to be below others.
* Map is unnecessary and inefficient in almost every case.
* Replaced by the new HashMap.
* Renamed Map to RBMap and Set to RBSet for cases that still make sense
(order matters) but use is discouraged.
There were very few cases where replacing by HashMap was undesired because
keeping the key order was intended.
I tried to keep those (as RBMap) as much as possible, but might have missed
some. Review appreciated!
These typedefs don't save much typing compared to the full `Ref<Resource>`
and `Ref<RefCounted>`, yet they sometimes introduce confusion among
new contributors.
* API kept the same (Although functions could be renamed to set_metadata/get_metadata in a later PR), so not much should change.
* Metadata now exposed as individual properties.
* Properties are editable in inspector (unless metadata name begins with _) under the metadata/ namespace.
* Added the ability to Add/Remove metadata properties to the inspector.
This is a functionality that was requested very often, that makes metadata work a bit more similar to custom properties in Blender.
The EditorProperty UI elements for project settings are created from
SectionedInspector, which has a prefix added to each property path. Each
EditorProperty needs to be made aware of this path so copy_property_path
copies the full path, and not just the suffix.
Fixes#59020.
* Very old macros from the time Godot was created.
* Limited arguments to 5 (then later changed to 8) in many places.
* They were replaced by C++11 Variadic Templates.
* Renamed methods that take argument pointers to have a "p" suffix. This was used in some places and not in others, so made it standard.
* Also added a dereference check for Variant*. Helped catch a couple of bugs.
