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.
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