Cherry-pick: Expose EditorNode3DGizmo::is_selected in GDScript.

[JoltedJon]

Brings in godotengine/godot#110421

Summary by CodeRabbit

• New Features
  • Added EditorNode3DGizmo.is_selected() to the class reference and scripting API. It reports whether a gizmo is selected, allowing its display to be adjusted during redraw.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: Redot-Engine/redot-engine/.coderabbit.yaml

Review profile: CHILL

Plan: Advanced

Run ID: dc4bf500-27f0-484c-80f2-7d9572efc05d

📥 Commits

Reviewing files that changed from the base of the PR and between 80d31f7 and 0d944e1.

📒 Files selected for processing (2)

• doc/classes/EditorNode3DGizmo.xml
• editor/scene/3d/node_3d_editor_gizmos.cpp

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Walkthrough

The EditorNode3DGizmo scripting API now exposes is_selected(). The class reference documents its boolean return value and use during _redraw.

Changes

Gizmo selection API

Layer / File(s)	Summary
Document and register selection method doc/classes/EditorNode3DGizmo.xml, editor/scene/3d/node_3d_editor_gizmos.cpp	The class reference documents is_selected() and its boolean return value. The method is registered as callable in the scripting API.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~5 minutes

Change: Feature

Suggested reviewers: arctis-fireblight, generalprotectionfault

Merge Risk: ⚪ Minimal · up to 0d944

This additive editor API exposes the gizmo’s existing selection state; no actionable merge risk is evident.

Architecture Summary

Architecture risk: 🔵 Low · up to 0d944

The change affects 2 systems.

Changed systems: editor, doc

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — editor (service) was modified; 1 changed file maps to changed impact.
• observed — doc (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in doc/classes/EditorNode3DGizmo.xml: Added the is_selected() method documentation, specifying a boolean return and describing its use to check gizmo selection during _redraw.
• observed — Modified behavior in editor/scene/3d/node_3d_editor_gizmos.cpp: is_selected is now registered as a callable EditorNode3DGizmo method.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files. (1 skipped: 1 …	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: exposing EditorNode3DGizmo::is_selected in GDScript.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 1 files. (1 skipped: 1 unsupported.)

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