Module: reefvision.widgets.radio

Source: ./reefvision/widgets/radio.reef

Overview

reefvision.widgets.radio — exclusive radio group "(*) label" / "( ) label"

object RadioGroup extends view.View. One view, options inside (not N Radio siblings). Keyboard: Up/Down/Home/End. Mouse: click a row. wants_focus true. Insertion is Group.add.

Usage: let rg = new radio.RadioGroup(cell.rect(1, 6, 38, 4), 8) let _ = rg.add_option("WaveOS (amd64)") win.add(rg)

Objects

RadioGroup

Extends: view.View

Fields:

Name	Type
`labels`	`[string]`
`capacity`	`int`
`count`	`int`
`selected`	`int`

`proc init(bounds: cell.Rect, capacity: int)`

Methods:

`override shared fn wants_focus(): bool`

`shared fn label(idx: int): option.Option[string]`

The label at idx, or None if there is no such option. C16 / ROADMAP 8.2b: "" out of range was indistinguishable from a genuinely empty label.

`shared fn label_or(idx: int, fallback: string): string`

`exclusive fn add_option(text: string): bool`

`exclusive proc set_selected(idx: int)`

`override exclusive proc draw(buf: cell.CellBuffer, abs: cell.Rect, clip: cell.Rect, focused: bool, th: theme.Theme)`

`override exclusive fn handle_event(e: event.Event): view.EventResult`

`exclusive fn click_at(abs_bounds: cell.Rect, x: int, y: int): bool`

Click row relative to abs_bounds.y. Group/Window deliver mouse in the same space as self.bounds (parent-relative / client-relative).

Functions

`fn max_opts(): int`

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