mirror of
https://github.com/MikaylaFischler/cc-mek-scada.git
synced 2024-08-30 18:22:34 +00:00
133 lines
3.9 KiB
Lua
133 lines
3.9 KiB
Lua
-- App Button Graphics Element
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local tcd = require("scada-common.tcd")
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local core = require("graphics.core")
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local element = require("graphics.element")
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local MOUSE_CLICK = core.events.MOUSE_CLICK
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---@class app_button_args
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---@field text string app icon text
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---@field title string app title text
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---@field callback function function to call on touch
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---@field app_fg_bg cpair app icon foreground/background colors
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---@field active_fg_bg? cpair foreground/background colors when pressed
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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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-- new app button
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---@param args app_button_args
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---@return graphics_element element, element_id id
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local function app_button(args)
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element.assert(type(args.text) == "string", "text is a required field")
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element.assert(type(args.title) == "string", "title is a required field")
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element.assert(type(args.callback) == "function", "callback is a required field")
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element.assert(type(args.app_fg_bg) == "table", "app_fg_bg is a required field")
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args.height = 4
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args.width = 5
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-- create new graphics element base object
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local e = element.new(args)
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-- draw the app button
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local function draw()
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local fgd = args.app_fg_bg.fgd
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local bkg = args.app_fg_bg.bkg
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if e.value then
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fgd = args.active_fg_bg.fgd
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bkg = args.active_fg_bg.bkg
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end
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-- draw icon
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e.w_set_cur(1, 1)
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e.w_set_fgd(fgd)
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e.w_set_bkg(bkg)
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e.w_write("\x9f\x83\x83\x83")
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e.w_set_fgd(bkg)
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e.w_set_bkg(fgd)
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e.w_write("\x90")
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e.w_set_fgd(fgd)
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e.w_set_bkg(bkg)
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e.w_set_cur(1, 2)
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e.w_write("\x95 ")
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e.w_set_fgd(bkg)
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e.w_set_bkg(fgd)
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e.w_write("\x95")
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e.w_set_cur(1, 3)
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e.w_write("\x82\x8f\x8f\x8f\x81")
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-- write the icon text
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e.w_set_cur(3, 2)
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e.w_set_fgd(fgd)
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e.w_set_bkg(bkg)
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e.w_write(args.text)
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end
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-- draw the app button as pressed (if active_fg_bg set)
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local function show_pressed()
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if e.enabled and args.active_fg_bg ~= nil then
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e.value = true
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e.w_set_fgd(args.active_fg_bg.fgd)
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e.w_set_bkg(args.active_fg_bg.bkg)
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draw()
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end
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end
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-- draw the app button as unpressed (if active_fg_bg set)
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local function show_unpressed()
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if e.enabled and args.active_fg_bg ~= nil then
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e.value = false
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e.w_set_fgd(e.fg_bg.fgd)
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e.w_set_bkg(e.fg_bg.bkg)
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draw()
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end
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end
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-- handle mouse interaction
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---@param event mouse_interaction mouse event
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function e.handle_mouse(event)
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if e.enabled then
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if event.type == MOUSE_CLICK.TAP then
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show_pressed()
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-- show as unpressed in 0.25 seconds
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if args.active_fg_bg ~= nil then tcd.dispatch(0.25, show_unpressed) end
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args.callback()
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elseif event.type == MOUSE_CLICK.DOWN then
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show_pressed()
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elseif event.type == MOUSE_CLICK.UP then
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show_unpressed()
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if e.in_frame_bounds(event.current.x, event.current.y) then
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args.callback()
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end
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end
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end
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end
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-- set the value (true simulates pressing the app button)
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---@param val boolean new value
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function e.set_value(val)
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if val then e.handle_mouse(core.events.mouse_generic(core.events.MOUSE_CLICK.UP, 1, 1)) end
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end
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-- element redraw
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function e.redraw()
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e.w_set_cur(math.floor((e.frame.w - string.len(args.title)) / 2) + 1, 4)
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e.w_write(args.title)
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draw()
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end
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-- initial draw
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e.redraw()
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return e.complete()
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end
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return app_button
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