Christopher Spears wrote:
> I am trying to create a GUI in glade that will allow
> me to convert temperatures. Here is the code for the
> backend:
>
> #!/usr/bin/env python
>
> import sys
> try:
> import pygtk
> pygtk.require("2.0")
> except:
> pass
> try:
> import gtk
> import gtk.glade
> except:
> sys.exit(1)
>
> class convertTempGUI:
> """A GUI to convert temperatures"""
>
> def on_mainWindow_delete(self, widget, event):
> #print "I made it vanish!"
> gtk.main_quit()
>
> def convert_to_celsius(self, temp):
> return (temp - 32)/1.8
>
> def convert_to_fahrenheit(self, temp):
> return temp * 1.8 + 32
>
> def print_temp(self, widget, entry, rb1):
> temp = float(entry.get_text())
> if rb1.get_active():
> val = '%.2f C' % self.convert_to_celsius(temp)
> else:
> val = '%.2f F' % self.convert_to_fahrenheit(temp)
> print "Degrees temp: ", val
>
>
> def __init__(self):
>
> #Set the Glade file
> self.gladefile = "convertempgui.glade"
> self.wTree = gtk.glade.XML(self.gladefile)
>
> #Create our dictionay and connect it
> dic = { "on_mainWindow_delete_event" :
> self.on_mainWindow_delete,
> "on_entry1_activate" : (self.print_temp, entry1,
> rb1) }
> self.wTree.signal_autoconnect(dic)
>
> if __name__ == "__main__":
> cTG = convertTempGUI()
> main = gtk.main()
>
> However when I run the code, I get the following error
> message:
>
> [EMAIL PROTECTED] ./converTempGUI 111> python
> convertTemp01.py
> Traceback (most recent call last):
> File "convertTemp01.py", line 49, in ?
> cTG = convertTempGUI()
> File "convertTemp01.py", line 44, in __init__
> dic = { "on_mainWindow_delete_event" :
> self.on_mainWindow_delete,
> NameError: global name 'entry1' is not defined
>
> Obviously, entry1 needs to be defined in order for the
> error message to go away. However, I am confused
> about what to do next. Originally, I hard coded the
> GUI with this script:
>
> #!/usr/bin/python
>
> import pygtk
> pygtk.require('2.0')
> import gtk
>
> class Conversion_GUI:
> def get_text(self, widget, entry):
> entry_text = entry.get_text()
> temp = float(entry_text)
> return temp
>
> def convert_to_celsius(self, temp):
> return (temp - 32)/1.8
>
> def convert_to_fahrenheit(self, temp):
> return temp * 1.8 + 32
>
> def print_temp(self, widget, entry, rb1):
> temp = float(entry.get_text())
> if rb1.get_active():
> val = '%.2f C' % self.convert_to_celsius(temp)
> else:
> val = '%.2f F' % self.convert_to_fahrenheit(temp)
> print "Degrees temp: ", val
>
>
> def __init__(self):
> self.temp = 0
>
> self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
> self.window.connect("destroy", lambda w:
> gtk.main_quit())
> self.window.set_title("Convert Temperatures")
> self.window.set_default_size(200,100)
>
> entry = gtk.Entry()
> entry.set_max_length(10)
> entry.set_text("0")
> label = gtk.Label("Enter Temp: ")
> label.set_justify(gtk.JUSTIFY_LEFT)
> entry.show()
> label.show()
>
> rb1 = gtk.RadioButton(None, "Fahrenheit")
> rb2 = gtk.RadioButton(rb1,"Celsius")
> rb1.show()
> rb2.show()
>
> box1 = gtk.VBox(False, 0)
> box2 = gtk.HBox(False, 0)
> box2.pack_start(rb1, False, False, 0)
> box2.pack_start(rb2, False, False, 0)
> box1.pack_start(box2, False, False, 0)
>
> box3 = gtk.HBox(False, 0)
> self.window.add(box1)
>
> box3.pack_start(label, False, False, 0)
> box3.pack_start(entry, True, True, 0)
> box1.pack_start(box3, False, False, 0)
>
> entry.connect("activate", self.print_temp, entry,
> rb1)
> quit_button = gtk.Button("Quit")
> quit_button.connect("clicked", lambda
> w:gtk.main_quit())
> convert_button = gtk.Button("Convert")
> convert_button.connect("clicked", self.print_temp,
> entry, rb1)
> convert_button.show()
> quit_button.show()
>
> box3.pack_start(convert_button, False, False, 0)
> box3.pack_start(quit_button, False, True, 0)
>
> box3.show()
> box2.show()
> box1.show()
> self.window.show()
>
> def main(self):
> gtk.main()
> return 0
>
> if __name__ == '__main__':
> convert = Conversion_GUI()
> convert.main()
>
>
> Is there a way for me to somehow extract entry1 from
> the glade file? I would normally check the docs, but
> the PyGTK site seems to be down.
> _______________________________________________
> pygtk mailing list [email protected]
> http://www.daa.com.au/mailman/listinfo/pygtk
> Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
>
what you need is:
entry1 = self.wTree.get_widget("entry1")
but even that is not needed: the first argument that will be send to the
callback (what is called widget in your code [def print_temp(self,
widget, entry, rb1):]) will be the entry.
hope that's clear enough
Yann
_______________________________________________
pygtk mailing list [email protected]
http://www.daa.com.au/mailman/listinfo/pygtk
Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
