Label Change on Button Click
23 Mar 2016 21:53 #72072
by squan09
Label Change on Button Click was created by squan09
I am just getting started with GladeVCP and am trying to make a button that will change a label in axis. Here is my code so far:
When I run this I "clicked" is printed to the terminal, but the label does not change. If I add self.window.show() to the init then the window will show the button and label and the label will change there. Any idea why it would change the one label and not the other in Axis?
#!/usr/bin/env python
import gtk
import hal_glib
import hal
class HandlerClass:
def on_button1_clicked(self, button, data=None):
self.label1.set_text("clicked")
print("clicked")
def __init__(self, halcomp,builder,useropts):
self.builder = gtk.Builder()
self.halcomp = halcomp
self.builder.add_from_file('button.glade')
self.builder.connect_signals(self)
self.label1 = self.builder.get_object('label1')
self.window = self.builder.get_object('window1')
def get_handlers(halcomp,builder,useropts):
return [HandlerClass(halcomp,builder,useropts)]When I run this I "clicked" is printed to the terminal, but the label does not change. If I add self.window.show() to the init then the window will show the button and label and the label will change there. Any idea why it would change the one label and not the other in Axis?
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24 Mar 2016 00:52 #72076
by cmorley
Replied by cmorley on topic Label Change on Button Click
You need a reference to the object before you can manipulate it.
try adding :
self.label1 = self.builder..get_object( "label1" )
to the __init__ function
I assume the label you wish to modify is called label1 in glade.
Chris M
try adding :
self.label1 = self.builder..get_object( "label1" )
to the __init__ function
I assume the label you wish to modify is called label1 in glade.
Chris M
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24 Mar 2016 01:18 #72078
by squan09
Replied by squan09 on topic Label Change on Button Click
Thanks, but I already have that on the second line from the bottom of the init function. Also, the label does change, but only when opened in a separate window outside of the the Axis GUI.
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25 Mar 2016 04:14 #72123
by cmorley
Replied by cmorley on topic Label Change on Button Click
sorry i didn't scroll the code...
This code is not useful...
self.window = self.builder.get_object('window1')
window1 gets replaced when the panel is re-parented into axis.
I can't see how that would affect the window based on the code you have shown.
Can you post the glade file too.
Chris M
This code is not useful...
self.window = self.builder.get_object('window1')
window1 gets replaced when the panel is re-parented into axis.
I can't see how that would affect the window based on the code you have shown.
Can you post the glade file too.
Chris M
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28 Mar 2016 21:02 #72269
by squan09
Replied by squan09 on topic Label Change on Button Click
So here is the glade file. I removed self.window = self.builder.get_object('window1') and had the same results.
Could this have anything to do with calling self.builder = gtk.Builder(), rather than self.builder = builder. From looking at others code that is only difference I can find. If I do change it to self.builder = builder though, the button inside of the Axis GUI does not function. Can you explain or do you know of a reference that explains the difference between gtk.Builder() and builder.
Could this have anything to do with calling self.builder = gtk.Builder(), rather than self.builder = builder. From looking at others code that is only difference I can find. If I do change it to self.builder = builder though, the button inside of the Axis GUI does not function. Can you explain or do you know of a reference that explains the difference between gtk.Builder() and builder.
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