infobeamer-testcard/node.lua

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Lua
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util.init_hosted()
local json = require "json"
local serial = sys.get_env "SERIAL"
local location = "<please wait>"
local description = "<please wait>"
util.data_mapper{
["device_info"] = function(info)
info = json.decode(info)
location = info.location
description = info.description
end
}
gl.setup(NATIVE_WIDTH, NATIVE_HEIGHT)
card = resource.load_image("testcard.png")
font = resource.load_font("vera.ttf")
function node.render()
gl.clear(0,0,0,1)
card:draw(0, 0, 1920, 1080)
-- upper: 623
-- lower: 707
upper_text = "C3VOC: " .. description
lower_text = location .. " - Serial " .. serial
upper_width = font:width(upper_text, 40)
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font:write(960-(upper_width/2), 631, upper_text, 40, 1,1,1,1)
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lower_width = font:width(lower_text, 20)
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font:write(960-(lower_width/2), 679, lower_text, 20, 1,1,1,1)
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end