toggler

local component = require("component")
local gpu = component.gpu
local redstone = component.redstone
local sides = require("sides")
gpu.setResolution(80,25)
local gui = require("gui")
local event = require("event")

gui.checkVersion(2,5)

local prgName = "Toggler"
local version = "v1.0"

local state = false
local function onoff_btn_callback(guiID, buttonID)
	if state == false then
		state = true
		redstone.setOutput(sides.right, 15)
		updateLabel(true)
	else
		state = false
		redstone.setOutput(sides.right, 0)
		updateLabel(false)
	end
end

local function exitButtonCallback(guiID, id)
   local result = gui.getYesNo("", "Do you really want to exit?", "")
   if result == true then
      gui.exit()
   end
   gui.displayGui(mainGui)
   refresh()
end
-- End: Callbacks

-- Begin: Menu definitions
mainGui = gui.newGui(1, 2, 79, 23, true)
on_off = gui.newButton(mainGui, 35, 12, "On/Off", onoff_btn_callback)
label_0 = gui.newLabel(mainGui, 33, 10, "Currently on", 0xff00, 0x0, 7)
exitButton = gui.newButton(mainGui, 73, 23, "exit", exitButtonCallback)
-- End: Menu definitions

local function updateLabel(state)
	if state == true then
		gui.setText(mainGui, label_0, "Currently on", true)
		gui.setBackground(mainGui, label_0, 0x00ff00)
	else
		gui.setText(mainGui, label_0, "Currently off", true)
		gui.setBackground(mainGui, label_0, 0x0000ff)
	end
end

gui.clearScreen()
gui.setTop("noname")
gui.setBottom("Made with Visual Gui v0.1a and Gui library v2.5")

-- Main loop
while true do
   gui.runGui(mainGui)
end