The error output ....
Code:
/home/pc/linuxcnc-dev/bin/gladevcp:298: GtkWarning: gtk_widget_size_allocate(): attempt to allocate widget with width -5 and height 17
gtk.main()
/home/pc/linuxcnc-dev/bin/gladevcp:298: GtkWarning: GdkWindow 0x4e00003 unexpectedly destroyed
gtk.main()
Traceback (most recent call last):
File "./hitcounter-modifyed.py", line 31, in on_notebook1_destroy
self.ini.save_state(self)
AttributeError: HandlerClass instance has no attribute 'ini'
task: main loop took 0.012469 seconds
**** GLADE VCP ERROR: X Protocol Error: 3
Shutting down and cleaning up LinuxCNC...
task: 13845 cycles, min=0.000005, max=0.012469, avg=0.001055, 1 latency excursions (> 10x expected cycle time of 0.001000s)
Note: Using POSIX realtime
the code: ....
Code:
import hal
import glib
import time
import gtk
import gtk.glade
import gobject
import os
class HandlerClass:
'''
class with gladevcp callback handlers
'''
def on_button_press(widget,data=None):
'''
a callback method
parameters are:
the generating object instance, likte a GtkButton instance
user data passed if any - this is currently unused but
the convention should be retained just in case
'''
print "on_button_press called"
self.nhits += 1
self.builder.get_object('hits').set_label("Hits: %d" % (self.nhits))
def on_notebook1_destroy(self,obj,data=None):
self.ini.save_state(self)
def __init__(self, halcomp,builder,useropts):
'''
Handler classes are instantiated in the following state:
- the widget tree is created, but not yet realized (no toplevel window.show() executed yet)
- the halcomp HAL component is set up and the widhget tree's HAL pins have already been added to it
- it is safe to add more hal pins because halcomp.ready() has not yet been called at this point.
after all handlers are instantiated in command line and get_handlers() order, callbacks will be
connected with connect_signals()/signal_autoconnect()
The builder may be either of libglade or GtkBuilder type depending on the glade file format.
'''
self.halcomp = halcomp
self.builder = builder
self.nhits = 0
builder.get_object('vcp_filechooserbutton1').set_current_folder(os.path.expanduser('/home/pc/F1/'))
builder.get_object('vcp_filechooserbutton2').set_current_folder(os.path.expanduser('/home/sara/pc/F2/'))
def get_handlers(halcomp,builder,useropts):
'''
this function is called by gladevcp at import time (when this module is passed with '-u <modname>.py')
return a list of object instances whose methods should be connected as callback handlers
any method whose name does not begin with an underscore ('_') is a callback candidate
the 'get_handlers' name is reserved - gladevcp expects it, so do not change
'''
return [HandlerClass(halcomp,builder,useropts)]
as you see there are these gladevcp callback:
def on_notebook1_destroy(self,obj,data=None):
self.ini.save_state(self)
regards
Giorgio
