mirror of
https://github.com/MikaylaFischler/cc-mek-scada.git
synced 2024-08-30 18:22:34 +00:00
82 lines
2.6 KiB
Lua
82 lines
2.6 KiB
Lua
-- Button Graphics Element
|
|
|
|
local core = require("graphics.core")
|
|
local element = require("graphics.element")
|
|
|
|
---@class switch_button_args
|
|
---@field text string button text
|
|
---@field callback function function to call on touch
|
|
---@field default? boolean default state, defaults to off (false)
|
|
---@field min_width? integer text length + 2 if omitted
|
|
---@field active_fg_bg cpair foreground/background colors when pressed
|
|
---@field parent graphics_element
|
|
---@field id? string element id
|
|
---@field x? integer 1 if omitted
|
|
---@field y? integer auto incremented if omitted
|
|
---@field height? integer parent height if omitted
|
|
---@field fg_bg? cpair foreground/background colors
|
|
---@field hidden? boolean true to hide on initial draw
|
|
|
|
-- new switch button (latch high/low)
|
|
---@param args switch_button_args
|
|
---@return graphics_element element, element_id id
|
|
local function switch_button(args)
|
|
element.assert(type(args.text) == "string", "text is a required field")
|
|
element.assert(type(args.callback) == "function", "callback is a required field")
|
|
element.assert(type(args.active_fg_bg) == "table", "active_fg_bg is a required field")
|
|
element.assert(type(args.min_width) == "nil" or (type(args.min_width) == "number" and args.min_width > 0), "min_width must be nil or a number > 0")
|
|
|
|
local text_width = string.len(args.text)
|
|
|
|
args.height = 1
|
|
args.min_width = args.min_width or 0
|
|
args.width = math.max(text_width, args.min_width)
|
|
|
|
-- create new graphics element base object
|
|
local e = element.new(args)
|
|
|
|
e.value = args.default or false
|
|
|
|
local h_pad = math.floor((e.frame.w - text_width) / 2) + 1
|
|
local v_pad = math.floor(e.frame.h / 2) + 1
|
|
|
|
-- show the button state
|
|
function e.redraw()
|
|
if e.value then
|
|
e.w_set_fgd(args.active_fg_bg.fgd)
|
|
e.w_set_bkg(args.active_fg_bg.bkg)
|
|
else
|
|
e.w_set_fgd(e.fg_bg.fgd)
|
|
e.w_set_bkg(e.fg_bg.bkg)
|
|
end
|
|
|
|
e.window.clear()
|
|
e.w_set_cur(h_pad, v_pad)
|
|
e.w_write(args.text)
|
|
end
|
|
|
|
-- handle mouse interaction
|
|
---@param event mouse_interaction mouse event
|
|
function e.handle_mouse(event)
|
|
if e.enabled and core.events.was_clicked(event.type) and e.in_frame_bounds(event.current.x, event.current.y) then
|
|
e.value = not e.value
|
|
e.redraw()
|
|
args.callback(e.value)
|
|
end
|
|
end
|
|
|
|
-- set the value (does not call the callback)
|
|
---@param val boolean new value
|
|
function e.set_value(val)
|
|
e.value = val
|
|
e.redraw()
|
|
end
|
|
|
|
-- initial draw
|
|
e.redraw()
|
|
|
|
return e.complete()
|
|
end
|
|
|
|
return switch_button
|