#!/usr/bin/env python
# -*- coding:UTF-8 -*-
"""
    This file will control some options of the gmoccapy plasma screen
    and demonstrats at the same time the possibilities you have introducing
    your own handler files and functions to that screen, showing the
    possibilities to modify the layout and behavior

    Copyright 2013 Norbert Schechner
    nieson@web.de

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

	Modified 12/16 to support my plasma tab  JDM
"""
import math
import hal_glib                           # needed to make our own hal pins
import hal                                # needed to make our own hal pins
from gladevcp.persistence import IniFile  # we use this one to save the states of the widgets on shut down and restart
from gladevcp.persistence import widget_defaults
from gladevcp.persistence import select_widgets
import gtk
from gmoccapy import preferences
from gmoccapy import getiniinfo


class Plasma_TabClass:

    def __init__(self, halcomp, builder, useropts):
        self.builder = builder
        self.halcomp = halcomp
        self.defaults = { IniFile.vars : { "thcspeedval"       : 15.0 ,
                                           "thcspeedmax"       : 100.0 ,
                                           "thcspeedmin"       : 1.0  ,
                                           "thcspeedincr"      : 1.0  ,

                                           "cutgapval"         : 0.06  ,
                                           "cutgapmax"         : 0.2 ,
                                           "cutgapmin"         : 0.01  ,
                                           "cutgapincr"        : 0.001  ,

                                           "g0gapval"          : 2.0 ,
                                           "g0gapmax"          : 4.5 ,
                                           "g0gapmin"          : 0.1  ,
                                           "g0gapincr"         : 0.1  ,

                                           "pierceutostart"    : True ,

                                           "piercegapval"      : .09  ,
                                           "piercegapmax"      : 0.5 ,
                                           "piercegapmin"      : 0.05 ,
                                           "piercegapincr"     : 0.001 ,

                                           "piercedelayval"    : 0.2  ,
                                           "piercedelaymax"    : 10.0 ,
                                           "piercedelaymin"    : 0.01 ,
                                           "piercedelayincr"   : 0.01 ,

                                           "enableheightlock"  : False,

                                           "chlthresholdmax"   : 99.0,
                                           "chlthresholdmin"   : 1.0 ,
                                           "chlthresholdincr"  : 1.0 ,
                                           "chlthresholdval"   : 80.0 ,

                                           "thctargetvoltval"  : 80.0,
                                           "thctargetvoltmax"  : 255.0,
                                           "thctargetvoltmin"  : 55.0 ,
                                           "thctargetvoltincr" : 1.0  ,

                                           "enablekerfcross"  : False,

                                           "kerfcrossmax"   : 500.0,
                                           "kerfcrossmin"   : 10.0,
                                           "kerfcrossincr"  : 10.0 ,
                                           "kerfcrossval"   : 90.0 ,

                                           "enablethc"      : False,

                                           "servodelayval"    : 1.0 ,
                                           "servodelaymax"    : 10.0 ,
                                           "servodelaymin"    : 0.01 ,
                                           "servodelayincr"   : 0.01 ,
                                           
                                           "thcvoltageset"  : True,

                                           "rbtnvoltageset" : True,
                                            
                                           "rbtncontrolscrn": True,

                                           "rbtnfinecuts"    : True,    

                                           "lowpassfcval"     : 40.0

                                         },
                        }

        get_ini_info = getiniinfo.GetIniInfo()
        prefs = preferences.preferences(get_ini_info.get_preference_file_path())
        theme_name = prefs.getpref("gtk_theme", "Follow System Theme", str)
        if theme_name == "Follow System Theme":
            theme_name = gtk.settings_get_default().get_property("gtk-theme-name")
        gtk.settings_get_default().set_string_property("gtk-theme-name", theme_name, "")

        self.ini_filename = __name__ + ".var"
        self.ini = IniFile(self.ini_filename, self.defaults, self.builder)
        self.ini.restore_state(self)

        # lets make our pins
        self.THC_speed = hal_glib.GPin(halcomp.newpin("THC-Speed", hal.HAL_FLOAT, hal.HAL_OUT))
        self.z_max_velocity_in = hal_glib.GPin(halcomp.newpin("Z-Max-In",hal.HAL_FLOAT, hal.HAL_IN))
        self.cut_gap = hal_glib.GPin(halcomp.newpin("cut-gap", hal.HAL_FLOAT, hal.HAL_OUT))
        self.g0_gap = hal_glib.GPin(halcomp.newpin("g0-gap", hal.HAL_FLOAT, hal.HAL_OUT))
        self.pierce_deley = hal_glib.GPin(halcomp.newpin("pierce-delay", hal.HAL_FLOAT, hal.HAL_OUT))
        self.pierce_gap = hal_glib.GPin(halcomp.newpin("pierce-gap", hal.HAL_FLOAT, hal.HAL_OUT))
        self.target_voltage = hal_glib.GPin(halcomp.newpin("Target-Voltage", hal.HAL_FLOAT, hal.HAL_OUT))
	self.THC_enable_in = hal_glib.GPin(halcomp.newpin("THC-Enable-In", hal.HAL_BIT, hal.HAL_IN))
        self.servo_delay = hal_glib.GPin(halcomp.newpin("servo-delay", hal.HAL_FLOAT, hal.HAL_OUT))
        self.thc_voltage_mode = hal_glib.GPin(halcomp.newpin("thc-voltage-mode", hal.HAL_BIT, hal.HAL_OUT))
        self.use_machine_params = hal_glib.GPin(halcomp.newpin("use_control_params", hal.HAL_BIT, hal.HAL_OUT))
        self.use_finecuts = hal_glib.GPin(halcomp.newpin("use-finecuts", hal.HAL_BIT, hal.HAL_OUT))
        self.lowpassfc = hal_glib.GPin(halcomp.newpin("Lowpass-Fc", hal.HAL_FLOAT, hal.HAL_OUT))
        self.lowpasslingain = hal_glib.GPin(halcomp.newpin("Lowpass-Lin-Gain", hal.HAL_FLOAT, hal.HAL_OUT))
        #input for control codes from gcode file (M67 E0 & M68 E0)
        self.command_from_file = hal_glib.GPin(halcomp.newpin("Command-From-File", hal.HAL_FLOAT, hal.HAL_IN))
        self.lock_height = hal_glib.GPin(halcomp.newpin("Lock-Height-From-File", hal.HAL_BIT, hal.HAL_OUT))

        #new local pins for corner hold threshold link to main screen and HAL
	self.CHLD_threshold = hal_glib.GPin(halcomp.newpin("CHL-Threshold", hal.HAL_FLOAT, hal.HAL_OUT))
        self.chld_threshold = hal_glib.GPin(halcomp.newpin("CHLD-Threshold-In",hal.HAL_FLOAT,hal.HAL_IN))
        self.enbl_heightlock = hal_glib.GPin(halcomp.newpin("Enbl-Heightlock-In",hal.HAL_BIT, hal.HAL_IN))
	#self.requested-vel = hal_glib.GPin(halcomp.newpin("Requested-Vel-In",hal.HAL_FLOAT, hal.HAL_IN))
       
        #new local pins for kerf crossing link to main screen and HAL
        self.kerf_threshold = hal_glib.GPin(halcomp.newpin("Kerf-Threshold-In",hal.HAL_FLOAT,hal.HAL_IN))
        self.enbl_kerf_crossing = hal_glib.GPin(halcomp.newpin("Enbl-Kerf-Crossing",hal.HAL_BIT, hal.HAL_IN))

        #these local input hal pins receive inputs from nets in plasma.hal
        self.btn_press_minus_THC = hal_glib.GPin(halcomp.newpin("THC-Minus-Button", hal.HAL_BIT, hal.HAL_IN))
        self.btn_press_plus_THC = hal_glib.GPin(halcomp.newpin("THC-Plus-Button", hal.HAL_BIT, hal.HAL_IN))
        #end of local input hal pins

        #need to do this to synch up initial state
        self.halcomp["thc-voltage-mode"] = True
        self.halcomp["use_control_params"] = True

        # get all widgets and connect them
        self.lbl_prog_volt = self.builder.get_object("lbl_prog_volt")
        self.lbl_cut_speed = self.builder.get_object("lbl_cut_speed")
        self.lbl_cut_gap = self.builder.get_object("lbl_cut_gap")
        self.lbl_g0_gap = self.builder.get_object("lbl_g0_gap")
        self.lbl_pierce_gap = self.builder.get_object("lbl_pierce_gap")
        self.lbl_pierce_delay = self.builder.get_object("lbl_pierce_delay")
        self.lbl_servo_delay = self.builder.get_object("lbl_servo_delay")

        self.btn_THC_speed_minus = self.builder.get_object("btn_THC_speed_minus")
        self.btn_THC_speed_minus.connect("pressed", self.on_btn_THC_speed_pressed, -1)

        self.btn_THC_speed_plus = self.builder.get_object("btn_THC_speed_plus")
        self.btn_THC_speed_plus.connect("pressed", self.on_btn_THC_speed_pressed, 1)

        self.adj_THC_speed = self.builder.get_object("adj_THC_speed")
        self.adj_THC_speed.connect("value_changed", self.on_adj_THC_speed_value_changed)
        self.adj_THC_speed.upper = self.thcspeedmax
        self.adj_THC_speed.lower = self.thcspeedmin
        self.adj_THC_speed.set_value(self.thcspeedval)

        self.btn_cut_gap_minus = self.builder.get_object("btn_cut_gap_minus")
        self.btn_cut_gap_minus.connect("pressed", self.on_btn_cut_gap_pressed, -1)

        self.btn_cut_gap_plus = self.builder.get_object("btn_cut_gap_plus")
        self.btn_cut_gap_plus.connect("pressed", self.on_btn_cut_gap_pressed, 1)

        self.adj_cut_gap = self.builder.get_object("adj_cut_gap")
        self.adj_cut_gap.connect("value_changed", self.on_adj_cut_gap_value_changed)
        self.adj_cut_gap.upper = self.cutgapmax
        self.adj_cut_gap.lower = self.cutgapmin
        self.adj_cut_gap.set_value(self.cutgapval)

        self.btn_g0_minus = self.builder.get_object("btn_g0_minus")
        self.btn_g0_minus.connect("pressed", self.on_btn_g0_pressed, -1)

        self.btn_g0_plus = self.builder.get_object("btn_g0_plus")
        self.btn_g0_plus.connect("pressed", self.on_btn_g0_pressed, 1)

        self.adj_G0_gap = self.builder.get_object("adj_G0_gap")
        self.adj_G0_gap.connect("value_changed", self.on_adj_G0_gap_value_changed)
        self.adj_G0_gap.upper = self.g0gapmax
        self.adj_G0_gap.lower = self.g0gapmin
        self.adj_G0_gap.set_value(self.g0gapval)

        self.Piercing_autostart = self.builder.get_object("piercing-autostart")
        self.Piercing_autostart.connect("toggled", self.on_Piercing_autostart_toggled)
        self.Piercing_autostart.set_active(self.pierceutostart)

        self.btn_pierce_gap_minus = self.builder.get_object("btn_pierce_gap_minus")
        self.btn_pierce_gap_minus.connect("pressed", self.on_btn_pierce_gap_pressed, -1)

        self.btn_pierce_gap_plus = self.builder.get_object("btn_pierce_gap_plus")
        self.btn_pierce_gap_plus.connect("pressed", self.on_btn_pierce_gap_pressed, 1)

        self.adj_pierce_gap = self.builder.get_object("adj_pierce_gap")
        self.adj_pierce_gap.connect("value_changed", self.on_adj_pierce_gap_value_changed)
        self.adj_pierce_gap.upper = self.piercegapmax
        self.adj_pierce_gap.lower = self.piercegapmin
        self.adj_pierce_gap.set_value(self.piercegapval)

        self.btn_pierce_delay_minus = self.builder.get_object("btn_pierce_delay_minus")
        self.btn_pierce_delay_minus.connect("pressed", self.on_btn_pierce_delay_pressed, -1)

        self.btn_pierce_delay_plus = self.builder.get_object("btn_pierce_delay_plus")
        self.btn_pierce_delay_plus.connect("pressed", self.on_btn_pierce_delay_pressed, 1)

        self.adj_pierce_delay = self.builder.get_object("adj_pierce_delay")
        self.adj_pierce_delay.connect("value_changed", self.on_adj_pierce_delay_value_changed)
        self.adj_pierce_delay.upper = self.piercedelaymax
        self.adj_pierce_delay.lower = self.piercedelaymin
        self.adj_pierce_delay.set_value(self.piercedelayval)

        self.btn_servo_delay_minus = self.builder.get_object("btn_servo_delay_minus")
        self.btn_servo_delay_minus.connect("pressed", self.on_btn_servo_delay_pressed, -1)

        self.btn_servo_delay_plus = self.builder.get_object("btn_servo_delay_plus")
        self.btn_servo_delay_plus.connect("pressed", self.on_btn_servo_delay_pressed, 1)

        self.adj_servo_delay = self.builder.get_object("adj_servo_delay")
        self.adj_servo_delay.connect("value_changed", self.on_adj_servo_delay_value_changed)
        self.adj_servo_delay.upper = self.servodelaymax
        self.adj_servo_delay.lower = self.servodelaymin
        self.adj_servo_delay.set_value(self.servodelayval)

        self.enable_HeightLock = self.builder.get_object("enable-HeightLock")
        self.enable_HeightLock.connect("toggled", self.on_enable_HeightLock_toggled)
        self.enable_HeightLock.set_active(self.enableheightlock)


        self.adj_CHL_threshold = self.builder.get_object("adj_CHL_threshold")
        self.adj_CHL_threshold.connect("value_changed", self.on_adj_CHL_threshold_value_changed)
#        self.adj_CHL_threshold.upper = self.chlthresholdmax
#        self.adj_CHL_threshold.lower = self.chlthresholdmin
        self.adj_CHL_threshold.set_value(self.chlthresholdval)

        self.btn_THC_target_minus = self.builder.get_object("btn_THC_target_minus")
        self.btn_THC_target_minus.connect("pressed", self.on_btn_THC_target_pressed, -1)

        self.btn_THC_target_plus = self.builder.get_object("btn_THC_target_plus")
        self.btn_THC_target_plus.connect("pressed", self.on_btn_THC_target_pressed, 1)


        self.adj_THC_Voltage = self.builder.get_object("adj_THC_Voltage")
        self.adj_THC_Voltage.connect("value_changed", self.on_adj_THC_Voltage_value_changed)
        self.adj_THC_Voltage.upper = self.thctargetvoltmax
        self.adj_THC_Voltage.lower = self.thctargetvoltmin
        self.adj_THC_Voltage.set_value(self.thctargetvoltval)

        self.enable_kerf_crossing = self.builder.get_object("enable-kerf-crossing")
        self.enable_kerf_crossing.connect("toggled", self.on_enable_kerf_crossing_toggled)
        self.enable_kerf_crossing.set_active(self.enablekerfcross)

        self.adj_kerf_threshold = self.builder.get_object("adj_kerf_threshold")
        self.adj_kerf_threshold.connect("value_changed", self.on_adj_kerf_threshold_value_changed)
#       self.adj_kerf_threshold.upper = self.kerfcrossmax
#        self.adj_kerf_threshold.lower = self.kerfcrossmin
        self.adj_kerf_threshold.set_value(self.kerfcrossval)

        self.enable_THC_tab = self.builder.get_object("hal-btn-THC")
        self.enable_THC_tab.connect("toggled",self.on_enable_THC_toggled)
        self.enable_THC_tab.set_active(self.enablethc)

        self.enable_thc_voltage_set = self.builder.get_object("rad-btn-voltage_set")
        self.enable_thc_voltage_set.connect("toggled", self.on_rbtn_voltage_set_toggled)
        self.enable_thc_voltage_set.set_active(self.rbtnvoltageset)

        self.enable_use_machine_params = self.builder.get_object("rbtn_control_scrn")
        self.enable_use_machine_params.connect("toggled", self.on_rbtn_control_scrn_toggled)
        self.enable_use_machine_params.set_active(self.rbtncontrolscrn)

        self.enable_use_finecuts = self.builder.get_object("rbtn_finecut")
        self.enable_use_finecuts.connect("toggled", self.on_rbtn_finecuts_toggled)
        self.enable_use_finecuts.set_active(self.rbtnfinecuts)

        self.adj_lowpass_fc = self.builder.get_object("adj-lowpass-fc")
        self.adj_lowpass_fc.connect("value_changed", self.on_adj_lowpass_fc_value_changed)
        self.adj_lowpass_fc.set_value(self.lowpassfcval)

        #these are the connections to local hal pins connected to nets in plasma.hal
        self.btn_press_minus_THC.connect("value-changed", self._on_btn_THC_target_pressed, -1)
        self.btn_press_plus_THC.connect("value-changed", self._on_btn_THC_target_pressed, 1)
        
        #service value change on hal input pin
	self.enbl_heightlock.connect("value-changed", self._on_enable_HeightLock_toggled)
#        self.enable_HeightLock.set_active(self.enableheightlock)

        self.chld_threshold.connect("value-changed", self._on_adj_CHL_threshold_value_changed)
#        self.adj_CHL_threshold.set_value(self.chlthresholdval)

        #service value change on hal input pins for kerf crossing synch with main page
	self.enbl_kerf_crossing.connect("value-changed", self._on_enable_kerf_crossing_toggled)
#        self.enable_kerf_crossing.set_active(self.enablekerfcross)

        self.kerf_threshold.connect("value-changed",self._on_adj_kerf_threshold_value_changed)
#        self.adj_kerf_threshold.set_value(self.kerfcrossval)

        #service THC enable from change on hal input pin
	self.THC_enable_in.connect("value-changed", self._on_enable_THC_toggled)

        #service command from gcode
        self.command_from_file.connect("value-changed", self.on_new_command_from_file)

        #end of local hal pin connections

        #this must stay with the _on_destroy definition
        self.tbl_cutting = self.builder.get_object("tbl_cutting")
        self.tbl_cutting.connect("destroy", self._on_destroy)

    def _on_destroy(self, obj, data = None):
        self.ini.save_state(self)

    # What to do on button pres events?
    def on_btn_THC_speed_pressed(self, widget, dir):
        increment = self.thcspeedincr * dir
        self.thcspeedval = self.adj_THC_speed.get_value() + increment
        self.adj_THC_speed.set_value(self.thcspeedval)

    def on_btn_cut_gap_pressed(self, widget, dir):
        increment = self.cutgapincr * dir
        self.cutgapval = self.adj_cut_gap.get_value() + increment
        self.adj_cut_gap.set_value(self.cutgapval)

    def on_btn_g0_pressed(self, widget, dir):
        increment = self.g0gapincr * dir
        self.g0gapval = self.adj_G0_gap.get_value() + increment
        self.adj_G0_gap.set_value(self.g0gapval)

    def on_btn_pierce_gap_pressed(self, widget, dir):
        increment = self.piercegapincr * dir
        self.piercegapval = self.adj_pierce_gap.get_value() + increment
        self.adj_pierce_gap.set_value(self.piercegapval)

    def on_btn_pierce_delay_pressed(self, widget, dir):
        increment = self.piercedelayincr * dir
        self.piercedelayval = self.adj_pierce_delay.get_value() + increment
        self.adj_pierce_delay.set_value(self.piercedelayval)

    def on_btn_servo_delay_pressed(self, widget, dir):
        increment = self.servodelayincr * dir
        self.servodelayval = self.adj_servo_delay.get_value() + increment
        self.adj_servo_delay.set_value(self.servodelayval)

    def on_btn_THC_target_pressed(self, widget, dir):
        increment = self.thctargetvoltincr * dir
        self.thctargetvoltval = self.adj_THC_Voltage.get_value() + increment
        self.adj_THC_Voltage.set_value(self.thctargetvoltval)

    #realy don't know why but this is what I had to do to make controls work from main panel    
    def _on_btn_THC_target_pressed(self, hal_pin, dir):
	if hal_pin.get() == True:
             increment = self.thctargetvoltincr * dir
             self.thctargetvoltval = self.adj_THC_Voltage.get_value() + increment
             self.adj_THC_Voltage.set_value(self.thctargetvoltval)

    # use radio button to set thc voltage mode
    def on_rbtn_voltage_set_toggled(self, widget, data = None):
        self.halcomp["thc-voltage-mode"] = widget.get_active()
            
    # use radio button to set cutting param source
    def on_rbtn_control_scrn_toggled(self, widget, data = None):
        self.halcomp["use_control_params"] = widget.get_active()

    # use radio button to set consumables used
    def on_rbtn_finecuts_toggled(self, widget, data = None):
        self.halcomp["use-finecuts"] = widget.get_active() 
   
    # and the behavior of the adjustments to control max and min values
    def on_adj_THC_speed_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_THC_speed_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_THC_speed_minus.set_sensitive(False)
        else:
            self.btn_THC_speed_plus.set_sensitive(True)
            self.btn_THC_speed_minus.set_sensitive(True)
#        self.THC_speed = widget.get_value() * self.z_max_velocity_in
        self.halcomp["THC-Speed"] = widget.get_value() * .01
        self.lbl_cut_speed.set_label("%.1f" % (widget.get_value()))

    def on_adj_cut_gap_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_cut_gap_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_cut_gap_minus.set_sensitive(False)
        else:
            self.btn_cut_gap_plus.set_sensitive(True)
            self.btn_cut_gap_minus.set_sensitive(True)
        self.halcomp["cut-gap"] = widget.get_value()
        self.lbl_cut_gap.set_label("%.3f" % (widget.get_value()))

    def on_adj_G0_gap_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_g0_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_g0_minus.set_sensitive(False)
        else:
            self.btn_g0_plus.set_sensitive(True)
            self.btn_g0_minus.set_sensitive(True)
        self.halcomp["g0-gap"] = widget.get_value()
        self.lbl_g0_gap.set_label("%.3f" % (widget.get_value()))

    def on_adj_pierce_gap_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_pierce_gap_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_pierce_gap_minus.set_sensitive(False)
        else:
            self.btn_pierce_gap_plus.set_sensitive(True)
            self.btn_pierce_gap_minus.set_sensitive(True)
        self.halcomp["pierce-gap"] = widget.get_value()
        self.lbl_pierce_gap.set_label("%.3f" % (widget.get_value()))

    def on_adj_pierce_delay_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_pierce_delay_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_pierce_delay_minus.set_sensitive(False)
        else:
            self.btn_pierce_delay_plus.set_sensitive(True)
            self.btn_pierce_delay_minus.set_sensitive(True)
        self.halcomp["pierce-delay"] = widget.get_value()
        self.lbl_pierce_delay.set_label("%.2f" % (widget.get_value()))

    def on_adj_servo_delay_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_servo_delay_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_servo_delay_minus.set_sensitive(False)
        else:
            self.btn_servo_delay_plus.set_sensitive(True)
            self.btn_servo_delay_minus.set_sensitive(True)
        self.halcomp["servo-delay"] = widget.get_value()
        self.lbl_servo_delay.set_label("%.2f" % (widget.get_value()))

    def on_adj_CHL_threshold_value_changed(self, widget, data = None):  
        self.chlthresholdval = widget.get_value()
        self.halcomp["CHL-Threshold"] = widget.get_value() * .01

    #this function is used if adjustment value is modified from GUI
    def on_adj_lowpass_fc_value_changed(self, widget, data = None):
         self.lowpassfcval = widget.get_value()
         self.halcomp["Lowpass-Fc"] = widget.get_value()
#         a = 2*3.141592*self.lowpassfcval
         a = 2*math.pi*self.lowpassfcval
#         self.halcomp["Lowpass-Lin-Gain"] = 1 - 2.718281**(-a * .001)
         self.halcomp["Lowpass-Lin-Gain"] = 1 - math.e**(-a * .001)


    #this function is used if adjustment value is modified from hal
    def _on_adj_CHL_threshold_value_changed(self, hal_pin, data = None):
#        self.chlthresholdval = hal_pin.get()
#        self.adj_CHL_threshold.set_value( self.chlthresholdval)
        if hal_pin.get() != self.adj_CHL_threshold.get_value():
             self.adj_CHL_threshold.upper = self.chlthresholdmax
             self.adj_CHL_threshold.lower = self.chlthresholdmin
             self.chlthresholdval = hal_pin.get()
             self.adj_CHL_threshold.set_value(hal_pin.get())

    def on_adj_kerf_threshold_value_changed(self, widget, data = None):
        self.kerfcrossval = widget.get_value()
 
    #this function is used if adjustment value is modified from HAL
    def _on_adj_kerf_threshold_value_changed(self,hal_pin, data = None):
#        self.kerfcrossval = hal_pin.get()
#        self.adj_kerf_threshold.set_value(self.kerfcrossval)
        if hal_pin.get() != self.adj_kerf_threshold.get_value():
             self.adj_kerf_threshold.upper = self.kerfcrossmax
             self.adj_kerf_threshold.lower = self.kerfcrossmin
             self.kerfcrossval = hal_pin.get()
             self.adj_kerf_threshold.set_value(hal_pin.get())

    def on_adj_THC_Voltage_value_changed(self, widget, data = None):
        if widget.get_value() >= widget.upper:
            self.btn_THC_target_plus.set_sensitive(False)
        elif widget.get_value() <= widget.lower:
            self.btn_THC_target_minus.set_sensitive(False)
        else:
            self.btn_THC_target_plus.set_sensitive(True)
            self.btn_THC_target_minus.set_sensitive(True)
        self.halcomp["Target-Voltage"] = widget.get_value()
        self.lbl_prog_volt.set_label("%d" % (widget.get_value()))


    def on_Piercing_autostart_toggled(self, widget, data = None):
        self.pierceutostart = widget.get_active()

    def on_enable_HeightLock_toggled(self, widget, data = None):
        self.enableheightlock = widget.get_active()

   #this function is used if enable is toggle from hal
    def _on_enable_HeightLock_toggled(self, hal_pin, data = None):
#        self.enableheightlock = hal_pin.get()
#        self.enable_HeightLock.set_active(self.enableheightlock)
        if hal_pin.get() !=  self.enable_HeightLock.get_active():
             self.enable_HeightLock.set_active(hal_pin.get())
#        else:
#             self.enable_HeightLock.set_active(False)
             

    def on_enable_kerf_crossing_toggled(self, widget, data = None):
        self.enablekerfcross = widget.get_active()

   #this function is used if enable is toggled from HAL
    def _on_enable_kerf_crossing_toggled(self, hal_pin, data = None):
#        self.enablekerfcross = hal_pin.get()
#        self.enable_kerf_crossing.set_active(self.enablekerfcross)
        if hal_pin.get() != self.enable_kerf_crossing.get_active():
             self.enable_kerf_crossing.set_active(hal_pin.get())
#        else:
#             self.enable_kerf_crossing.set_active(False)

    def on_enable_THC_toggled(self, widget, data = None):
         self.enablethc = widget.get_active()

   #this function is used if THC enable is toggled from hal
    def _on_enable_THC_toggled(self, hal_pin, data = None):
	if hal_pin.get() != self.enable_THC_tab.get_active():
             self.enable_THC_tab.set_active(hal_pin.get())

   #this function is used to decode command from gcode file
   # if real time control of height hold is desired then 1X and 2X need to be
   # decoded in a realtime component
    def on_new_command_from_file(self, hal_pin, data = None):
        if hal_pin.get() != 0:
             command = hal_pin.get()
             #THC run from file
             if 20 <= command < 30:
                    self.halcomp["Lock-Height-From-File"] = False
                    #no need to decode I% here no Hypertherm RS-485
             # height hold from file
             elif 10 <= command < 20:
                    self.halcomp["Lock-Height-From-File"] = True
                    #no need to decode I% here no Hypertherm RS-485     
             #global THC on
             elif 900 == command:
                   if self.rbtncontrolscrn != True:
                        self.enablethc = True
                        self.enable_THC_tab.set_active(self.enablethc)
             # global THC off
             elif 999 == command:
                   if self.rbtncontrolscrn != True:
                        self.enablethc = False
                        self.enable_THC_tab.set_active(self.enablethc)
             #get arc voltage
             elif 360 <= command < 400 or 3060 <= command < 3201:
                   if command >= 3060:
                        command = command - 3000
                   else:
                        command = command - 300
                   if self.rbtncontrolscrn != True:
                        self.adj_THC_Voltage.set_value(command)
             #get preset Amps not actually used
             elif 410 <= command < 500 or 4000 <= command < 4201:
                   if command >= 4000:
                        command = command - 4000
                   else:
                        command = command - 400
                   #nothing else to do here for now
             #get arc servo delay time
             elif 50 <= command < 60 or 500 <= command < 600:
                   if command >= 500:
                        command = (command - 500)/10
                   else:
                        command = command - 50
                   if self.rbtncontrolscrn != True:
                        self.adj_servo_delay.set_value(command)
             #get THC tune
             elif 710 <= command < 720:
                   command = command - 710
                  #nothing to set yet
 

def get_handlers(halcomp, builder, useropts):
    return[Plasma_TabClass(halcomp, builder, useropts)]
