Have been going through the tutorial on
http://gnipsel.com/linuxcnc/gui/gui03b.html
I am running off a Linuxcnc 2.5.0 install. Had a problem with PYTHONPATH,
but I managed to work around it by adding the path specifically to the
script.
Here is my existing script:
#!/usr/bin/env python
import sys,os
sys.path.append('/usr/lib/pymodules/python2.6/gladevcp/')
import pygtk
#pygtk.require("2.0")
import gtk
import gobject
import linuxcnc
import gladevcp.makepins
from gladevcp.gladebuilder import GladeBuilder
import hal
import hal_widgets
# set up paths to files
BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
libdir = os.path.join(BASE, "lib", "python")
sys.path.insert(0, libdir)
datadir = os.path.join(BASE, "share", "linuxcnc")
xmlname = os.path.join(datadir,"gui3.glade")
class gui3(object):
def __init__(self):
self.emc = linuxcnc
self.status = self.emc.stat()
self.builder = gtk.Builder()
self.builder.add_from_file(xmlname)
self.halcomp = hal.component("gui3")
self.builder.connect_signals(self)
self.window = self.builder.get_object("window1")
self.window.show()
self.panel = gladevcp.makepins.GladePanel(self.halcomp, xmlname,
self.builder, None)
self.halcomp.ready()
# The gobject.timeout_add() function sets a function to be called at
regular intervals
gobject.timeout_add(100, self.periodic) # time between calls to the
function, in milliseconds
self.machine_status = 0
def periodic(self): # fetch status items and update screen
self.status.poll()
data = self.status.actual_position[0]
text = "% 9.4f"% (data)
self.builder.get_object("dro_x").set_text(text)
data = self.status.actual_position[1]
text = "% 9.4f"% (data)
self.builder.get_object("dro_y").set_text(text)
data = self.status.actual_position[2]
text = "% 9.4f"% (data)
self.builder.get_object("dro_z").set_text(text)
return True # must return True to keep running
def on_hal_stat1_mode_mdi(self, widget, data=None):
self.mode_mdi = 1
def on_test_button_clicked(self, widget, data=None):
self.status.poll()
print self.machine_status
def on_window1_destroy(self, widget, data=None):
print "quit with cancel"
gtk.main_quit()
def on_gtk_quit_activate(self, menuitem, data=None):
print "quit from menu"
gtk.main_quit()
if __name__ == "__main__":
app = gui3()
gtk.main()
--------------------
I get the following when I run it:
cnc@cnc-desktop:~/linuxcnc/configs/gui3$ linuxcnc ./gui3.ini
LINUXCNC - 2.5.0
Machine configuration directory is '/home/cnc/linuxcnc/configs/gui3/.'
Machine configuration file is 'gui3.ini'
Starting LinuxCNC...
/usr/lib/pymodules/python2.6/gtk-2.0/gobject/__init__.py:114: Warning:
cannot register existing type `HAL_HBox'
type_register(cls, namespace.get('__gtype_name__'))
Traceback (most recent call last):
File "/usr/bin/gui3", line 13, in <module>
import hal_widgets
File "/usr/lib/pymodules/python2.6/gladevcp/hal_widgets.py", line 65, in
<module>
class HAL_HBox(gtk.HBox, _HalSensitiveBase):
File "/usr/lib/pymodules/python2.6/gtk-2.0/gobject/__init__.py", line 60,
in __init__
cls._type_register(cls.__dict__)
File "/usr/lib/pymodules/python2.6/gtk-2.0/gobject/__init__.py", line
114, in _type_register
type_register(cls, namespace.get('__gtype_name__'))
RuntimeError: could not create new GType: HAL_HBox (subclass of GtkHBox)
Shutting down and cleaning up LinuxCNC...
Cleanup done
LinuxCNC terminated with an error. You can find more information in the
log:
/home/cnc/linuxcnc_debug.txt
and
/home/cnc/linuxcnc_print.txt
as well as in the output of the shell command 'dmesg' and in the terminal
----
cnc@cnc-desktop:~/linuxcnc/configs/gui3$ more /home/cnc/linuxcnc_debug.txt
Can not find -sec MOT -var MOT -num 1
Can not find -sec IO -var IO -num 1
Can not find -sec LINUXCNC -var NML_FILE -num 1
Can not find -sec EMC -var NML_FILE -num 1
28640
PID TTY STAT TIME COMMAND
28694
PID TTY STAT TIME COMMAND
Stopping realtime threads
Unloading hal components
----
cnc@cnc-desktop:~/linuxcnc/configs/gui3$ more /home/cnc/linuxcnc_print.txt
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/realtime-2.6.32-122-rtai/modules/linuxcnc
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/share/linuxcnc/tcl/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.5
INIFILE=/home/cnc/linuxcnc/configs/gui3/./gui3.ini
PARAMETER_FILE=linuxcnc.var
TASK=milltask
HALUI=
DISPLAY=gui3
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting TASK program: milltask
Starting DISPLAY program: gui3
Killing task linuxcncsvr, PID=28640
Killing task milltask, PID=28694
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments
----------------------
The problem seems to be defining the GTK resource in hal_widgets. Is this a
known issue, or am I missing something simple?
Thanks for any help.
Chuck Buckley
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