Label

#!/usr/bin/env python


import hal
import hal_glib
#

class HandlerClass:

    def _on_value_change(self,hal_pin,data=None):
        #print "_on_value_change() - HAL pin value: %s" % (hal_pin.get())
        value = hal_pin.get()
        if value < 0:
            self.label.set_label("REVERSE")
        elif value > 0:
            self.label.set_label("FORWARD")
        else:
            self.label.set_label("OFF")

    def _on_status_change(self,hal_pin,data=None):
        #print "_on_value_change() - HAL pin value: %s" % (hal_pin.get())
        value = hal_pin.get()
        if value < 0:
            self.label.set_label("Drive OK")
        elif value > 0:
            self.label.set_label("Drive Broken")
        else:
            self.label.set_label("Drive Unknown")

            
    def __init__(self, halcomp,builder,useropts):

        self.halcomp = halcomp
        self.builder = builder

        # hal pins with change callback, unrelated to any HAL widget.
        # When the pin's value changes the callback is executed.
        self.inpin = hal_glib.GPin(halcomp.newpin('input-pin',  hal.HAL_FLOAT, hal.HAL_IN))
        self.inpin.connect('value-changed', self._on_value_change)
        self.label = self.builder.get_object('label1')
        # second pin
        self.inpin = hal_glib.GPin(halcomp.newpin('status-pin',  hal.HAL_FLOAT, hal.HAL_IN))
        self.inpin.connect('value-changed', self._on_staus_change)
        self.label = self.builder.get_object('label2')
         # Does the line above need a unique name?

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

#!/usr/bin/env python

import gtk
import hal
import hal_glib
#

class HandlerClass:

    def _on_value_change(self,hal_pin,data=None):
        #print "_on_value_change() - HAL pin value: %s" % (hal_pin.get())
        value = hal_pin.get()

        if value < 0:
            self.label.set_label("REV")
            self.eventbox.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse("red"))
        elif value > 0:
            self.label.set_label("FWD")
            self.eventbox.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse("green"))
        else:
            self.label.set_label("OFF")
            self.eventbox.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse("#F5F5F5"))

    def _on_status1_change(self,hal_pin,data=None):
        value = hal_pin.get()
        print "_on_status1_change() - HAL pin value: %s" % (hal_pin.get())
        
        if value == 0:
            self.label2.set_label("Drive Status = No Faults")
        elif value == 1:
            self.label2.set_label("Drive Status = Over Current")
        elif value == 2:
            self.label2.set_label("Drive Status = Over Voltage")
        elif value == 3:
        <snip>
        else:
            self.label2.set_label("Drive Status = Unknown")
            
    def __init__(self, halcomp,builder,useropts):

        self.halcomp = halcomp
        self.builder = builder

        # hal pins with change callback, unrelated to any HAL widget.
        # When the pin's value changes the callback is executed.
        self.inpin = hal_glib.GPin(halcomp.newpin('input-pin',  hal.HAL_FLOAT, hal.HAL_IN))
        self.inpin.connect('value-changed', self._on_value_change)
        self.label = self.builder.get_object('spindle-direction')
        self.eventbox = self.builder.get_object('eventbox1')
        self.button = self.builder.get_object('hal_button1')
        self.button.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse("yellow"))
        self.button.modify_bg(gtk.STATE_PRELIGHT, gtk.gdk.color_parse("red"))
        self.button.modify_bg(gtk.STATE_ACTIVE, gtk.gdk.color_parse("blue"))

        # define gs2 status 1
        self.inpin = hal_glib.GPin(halcomp.newpin('gs2-status1', hal.HAL_S32, hal.HAL_IN))
        self.inpin.connect('value-changed', self._on_status1_change)
        self.label2 = self.builder.get_object('gs2-status1')
        self.eventbox = self.builder.get_object('eventbox2')


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