NodeGroup.h File Reference

Node grouping and collapse system for node graphs (Phase 9). More...

#include <string>
#include <vector>
#include "../third_party/nlohmann/json.hpp"

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Classes
struct	Olympe::NodeGroup
	A named set of node IDs that can be collapsed into a single header. More...
class	Olympe::GroupManager
	Singleton that owns all NodeGroup instances for the active graph. More...

Namespaces
namespace	Olympe
	< Provides AssetID and INVALID_ASSET_ID

Detailed Description

Node grouping and collapse system for node graphs (Phase 9).

Author

Olympe Engine

Date

2026-03-09

NodeGroup allows the user to logically associate a set of nodes under a named, coloured header. A collapsed group renders only the header bar, hiding the individual nodes to reduce visual clutter.

GroupManager is a Meyers singleton that owns all groups. It is UI-agnostic; the rendering layer reads the group data each frame.

C++14 compliant — no std::optional, structured bindings, std::filesystem.

Definition in file NodeGroup.h.