GGUI/Public/UIValueService.h file

Value service: typed arithmetic for value widgets (toggle, slider, number).

A value widget edits its value in the value's own type. Stepping, clamping and snapping are done in that type, so an int never round-trips through float and a Fixed32 goes back to its source bit for bit.

ValueService<T> holds the arithmetic per type. The core stores every value type-erased (ValueBits) next to its ops table (ValueOps) and calls through that; it never switches on a kind at run time.

Supported: bool, int32_t, int64_t, float, double, Fixed32.

Namespaces

namespace GGUI

Classes

struct GGUI::ValueBits

Type-erased value storage. Only the matching ValueService reads it.

struct GGUI::ValueOps

Per-type operations, as the core calls them.

template<ValueType T>

struct GGUI::ValueService

The arithmetic for T: its ops table, and its values in and out of ValueBits. Specialised for each ValueType in ValueService.cpp.

struct GGUI::GGValue

A typed value handed to code outside the UI (FieldSource::SetValue).