Upon further investigation, I found the problem.
Pythoncard is relying on the __name__ attribute and that's why it
didn't know about the newly careated function. I can not set that
attribute directly, of course, since it's a readonly attribute. Need
other workaround.
The author of Pythoncard has responded and so I am shifting this
thread over to the Pythoncard list.
Thanks again for all the help. I learned a few things about Python
through this exercise.
Okay, just to complete the record - in case anybody tries to google
for a solution to add control to PythonCard at run time, here's a
complete code:
#!/usr/bin/python
"""
__version__ = "$Revision: 1.6 $"
__date__ = "$Date: 2004/08/17 19:46:06 $"
"""
import new
from PythonCard import log
from PythonCard import model
from PythonCard.model import SetInitParam
rsrc = {'application':{'type':'Application',
'name':'Minimal',
'backgrounds': [
{'type':'Background',
'name':'bgMin',
'title':'Minimal PythonCard Application',
'size'
200, 300),
'components': [
] # end components
} # end background
] # end backgrounds
} }
class Background_Dynamic(model.Background):
def __init__(self, aParent, aBgRsrc,
SetInitParamFct=SetInitParam):
model.Background.__init__(self, aParent, aBgRsrc,
SetInitParamFct)
def addHandler(self, aMethod):
# Add the Handler to our Handler list.
if aMethod.name not in self._handlers:
log.debug("addHandler: " + aMethod.name)
#self._handlers[aMethod.name] = event.Handler(aMethod)
self._handlers[aMethod.name] = aMethod
def mouseclick_factory(self, name):
def function(self, background, event):
self.mouseclick_factory("Button"+str(int(name[-1:])+1))
function.name = "on_%s_mouseClick" % name
method = new.instancemethod(function, self, self.__class__)
setattr(self, function.name, method)
self.addHandler(method)
self.components[name] = {'type':'Button',
'name':name,
'label':name,
'position'
5,
5+int(name[-1:])*30),
'text':name}
return function
class Minimal(Background_Dynamic):
def on_initialize(self, event):
self.components['field1'] =
{'type':'TextField','name':'field1','position'
5, 5),'size'
150,
-1),'text':'Hello PythonCard'}
self.mouseclick_factory("Button1")
if __name__ == '__main__':
app = model.Application(Minimal, None, rsrc)
app.MainLoop()
It goes to show how flexible and powerful PythonCard is. Too bad it
doesn't draw the attention of more new comers.
