On Thu, 2006-06-22 at 22:30 -0700, Christopher Spears wrote:
I am trying to create a gui that consists of a
vertical scrollbar and two buttons. I want to be able
to pick a number representing degrees Fahrenheit using
the scrollbar. When I click the Convert button after
picking a number, the gui would convert the number
into degrees Celsius and print the answer to the
screen. Here is what I have written so far:
#!/usr/bin/python
import pygtk
pygtk.require('2.0')
import gtk
def scale_set_default_values(scale):
scale.set_update_policy(gtk.UPDATE_CONTINUOUS)
scale.set_digits(1)
scale.set_value_pos(gtk.POS_LEFT)
scale.set_draw_value(True)
scale.set_sensitive(True)
class Conversion_GUI:
def convert_to_celsius(self, adj):
#print "Data: ", adj.value
self.degC = (adj.value - 32)/1.8
return
def print_celsius(self, widget):
#degC = self.convert_to_celsius(adj1)
print self.degC #data
def __init__(self):
self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.window.connect("destroy", lambda w:
gtk.main_quit())
self.window.set_title("Convert to Celsius")
self.window.set_default_size(200,240)
box1 = gtk.VBox(False, 0)
self.window.add(box1)
box2 = gtk.HBox(False, 10)
box2.set_border_width(10)
box1.pack_end(box2, True, True, 0)
box3 = gtk.HBox(False, 10)
box3.set_border_width(10)
box1.pack_end(box3, True, True, 0)
adj1 = gtk.Adjustment(32.0, 32.0, 213.0, 0.1, 1.0,
1.0)
self.vscale = gtk.VScale(adj1)
self.vscale.set_size_request(20, 300)
scale_set_default_values(self.vscale)
box1.pack_start(self.vscale, True, True, 0)
adj1.connect("value_changed",self.convert_to_celsius)
quit_button = gtk.Button("Quit")
quit_button.connect("clicked", lambda
w:gtk.main_quit())
self.degC = 0
convert_button = gtk.Button("Convert")
convert_button.connect("clicked",
self.print_celsius)
box3.pack_start(convert_button, True, True, 0)
box2.pack_start(quit_button, True, True, 0)
self.vscale.show()
convert_button.show()
quit_button.show()
box3.show()
box2.show()
box1.show()
self.window.show()
def main(self):
gtk.main()
return 0
if __name__ == '__main__':
convert = Conversion_GUI()
convert.main()
> Basically, the scrollbar feeds information into
> convert_to_celsius, which does the conversion. What I
> want to do is somehow store the information generated
> in convert_to_celsius in a variable and send it to
> print_celsius to print out the answer after the
> Convert button is pressed.
>
> I've looked at the tutorials and the docs and couldn't
> find anything, so I thought someone on this mailing
> list could give me advice.
That should work (not tested). Basically you just can use a class
global variable to store the converted variable in. "self.degC" I also
removed a few function parameters you'll see.
I think you should change the adj1.connect() to store the adj value and
print the degF value in something in your window, then use the commented
out method in the print_celcius to convert then print the temp.
That should give you a few more ideas :)
--
Brian <[EMAIL PROTECTED]>
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