ComponentInterfaceAdapters.h File Reference

Registry for extracting interfaces from components without RTTI or vtable changes. More...

Namespaces
namespace	ComponentInterfaceAdapters

Typedefs
using	InterfaceAdapter = void* (*)(DekiComponent*)

Functions
void	ComponentInterfaceAdapters::Register (uint32_t interfaceId, ComponentType componentType, InterfaceAdapter adapter)
void *	ComponentInterfaceAdapters::Query (uint32_t interfaceId, DekiComponent *comp)
InterfaceAdapter	ComponentInterfaceAdapters::Find (uint32_t interfaceId, ComponentType componentType, ComponentType baseType)
	The adapter Query would call for a component of this type (exact type first, then its base type), or nullptr.
uint32_t	ComponentInterfaceAdapters::Version ()
	Bumped by every Register.

Detailed Description

Registry for extracting interfaces from components without RTTI or vtable changes.

Packages register adapter functions that convert a DekiComponent* to an interface pointer based on the component's StaticType. The renderer queries this to find IClipProvider, ISortableProvider, etc. without knowing the concrete component class.

Usage:

// In your component .cpp:
#include "ComponentInterfaceAdapters.h"
static struct MyAdapterRegistrar {
    MyAdapterRegistrar() {
        ComponentInterfaceAdapters::Register(
            IClipProvider::InterfaceID, MyComponent::StaticType,
            [](DekiComponent* c) -> void* {
                return static_cast<IClipProvider*>(static_cast<MyComponent*>(c));
            });
    }
} s_reg;

Typedef Documentation

InterfaceAdapter

using InterfaceAdapter = void* (*)(DekiComponent*)