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#
# Example 2 - Using fl in python with callbacks.
#
# The form is named 'main_form' and resides on file 'test_cb.fd'.
# It has three objects named button1, button2 and exitbutton.
# All buttons have callbacks with the same names as their corresponding
# buttons but with CB appended.
#
import fl # The forms library
import FL # Symbolic constants for the above
import flp # The module to parse .fd files
import sys
# The following struct is created to hold the instance variables
# main_form, button1, button2 and exitbutton.
class myform:
#
# The constructor parses and creates the form, but doesn't
# display it (yet).
def __init__(self, number):
#
# First we parse the form
parsetree = flp.parse_form('test_cb', 'main_form')
#
# Next we create it
flp.create_full_form(self, parsetree)
# And keep our number
self.number = number
#
# The show function displays the form. It doesn't do any interaction,
# though.
def show(self):
self.main_form.show_form(FL.PLACE_SIZE, 1, '')
# The callback functions
def button1CB(self, obj, arg):
print 'Button 1 pressed on form', self.number
def button2CB(self, obj, arg):
print 'Button 2 pressed on form', self.number
def exitbuttonCB(self, obj, arg):
print 'Ok, bye bye'
sys.exit(0)
#
# The main program. Instantiate two variables of the forms class
# and interact with them.
form1 = myform(1)
form2 = myform(2)
form1.show()
form2.show()
obj = fl.do_forms()
print 'do_forms() returned. This should not happen. obj=', obj
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