60 lines
1.8 KiB
Lua
60 lines
1.8 KiB
Lua
-- Indicator RGB LED Graphics Element
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local element = require("graphics.element")
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---@class indicator_led_rgb_args
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---@field label string indicator label
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---@field colors table colors to use
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---@field min_label_width? integer label length if omitted
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---@field parent graphics_element
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---@field id? string element id
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---@field x? integer 1 if omitted
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---@field y? integer auto incremented if omitted
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---@field fg_bg? cpair foreground/background colors
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---@field hidden? boolean true to hide on initial draw
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-- Create a new RGB LED indicator light element.
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---@nodiscard
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---@param args indicator_led_rgb_args
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---@return RGBLED element, element_id id
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return function (args)
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element.assert(type(args.label) == "string", "label is a required field")
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element.assert(type(args.colors) == "table", "colors is a required field")
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args.height = 1
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args.width = math.max(args.min_label_width or 0, string.len(args.label)) + 2
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-- create new graphics element base object
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local e = element.new(args --[[@as graphics_args]])
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e.value = 1
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-- on state change
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---@param new_state integer indicator state
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function e.on_update(new_state)
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e.value = new_state
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e.w_set_cur(1, 1)
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if type(args.colors[new_state]) == "number" then
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e.w_blit("\x8c", colors.toBlit(args.colors[new_state]), e.fg_bg.blit_bkg)
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end
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end
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-- set indicator state
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---@param val integer indicator state
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function e.set_value(val) e.on_update(val) end
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-- draw label and indicator light
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function e.redraw()
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e.on_update(e.value)
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if string.len(args.label) > 0 then
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e.w_set_cur(3, 1)
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e.w_write(args.label)
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end
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end
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---@class RGBLED:graphics_element
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local RGBLED, id = e.complete(true)
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return RGBLED, id
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end
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