# LASERCONTROL.py
# Version 3, 10 Aug 2013
# (c) 2016 by Andrew J. Campbell
#
# Laser control through serial port

import serial
import Tkinter as tk

ser = serial.Serial()
ser.baudrate = 57600
ser.port = 'COM1'
#
#print ser.name, " is open = ", ser.isOpen()

window = tk.Tk()
window.title("Laser Heating Control")

setpoint = tk.StringVar()
setpoint.set(0.0)
increment = tk.StringVar()
increment.set(1)

def laseroff() : ser.write("EMON = TRUE")

def laseron() : ser.write("EMON = FALSE")

def setlaser(x) : 
	global setpoint
	setpoint.set(str(x))
	message = "SCR = " + setpoint
	ser.write(message)
	
def set_0() : setlaser(0.0)

def set_10() : setlaser(10.0)

def adjust_up() : setlaser(float(setpoint.get())+float(increment.get()))

def adjust_down() : setlaser(float(setpoint.get())-float(increment.get()))

frame_onoff = tk.Frame(window, padx=50)
offButton = tk.Button(frame_onoff, text="Laser Off", command=laseroff)
onButton = tk.Button(frame_onoff, text="Laser On", command=laseron)
offButton.pack(side='left')
onButton.pack(side='left')

frame_preset = tk.Frame(window)
pct0Button = tk.Button(frame_preset, text="0 %", command=set_0)
pct10Button = tk.Button(frame_preset, text="10 %", command=set_10)
pct0Button.pack(side='left')
pct10Button.pack(side='left')

frame_adjust = tk.Frame(window)
upButton = tk.Button(frame_adjust, text="Up", command=adjust_up)
downButton = tk.Button(frame_adjust, text="Down", command=adjust_down)
incrementEntry = tk.Entry(frame_adjust, textvariable=increment, width=4, justify='center')
upButton.pack()
incrementEntry.pack()
downButton.pack()

setpointlabel = tk.Label(window, textvariable=setpoint, font=("Helvetica","40"))

frame_onoff.pack(pady=20)
setpointlabel.pack()
frame_adjust.pack(pady=10)
frame_preset.pack(pady=10)

window.mainloop()

ser.close()