Re: [Pythoncard-users] Creating dynamic window

[John H. <ec...@ya...>]

Okay, here's a version that works, clean, and not
requiring any changes to PythonCard.

#!/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()


--- Kevin Altis <al...@se...> wrote:

> After a bit of research I came up with the following
> working example  
> which uses a slightly modified version of your
> original factory.  
> func_name seems to be the important attribute. I was
> able to use  
> addMethod to clean up the code a bit .
> 
> This still doesn't solve the problem of creating an
> arbitrary  
> function/method from a string, but that's a generic
> Python problem  
> that I don't know the answer to rather than
> something PythonCard- 
> specific.
> 
> ka
> ---
> 
> from PythonCard import model
> 
> rsrc = {'application':{'type':'Application',
>            'name':'Minimal',
>      'backgrounds': [
>      {'type':'Background',
>            'name':'bgMin',
>            'title':'Minimal PythonCard Application',
>            'size':(200, 100),
>           'components': [
> 
> ] # end components
> } # end background
> ] # end backgrounds
> } }
> 
> class Minimal(model.Background):
>      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")
>          self.mouseclick_factory("Button2")
> 
>      def mouseclick_factory(self, name):
>          def function(self, event):
>              # changed to event.target.name to
> verify we're getting
>              # the correct target when button is
> clicked
>              print "You clicked '%s'." %
> event.target.name
>          # func_name seems to be the magic attribute
> rather than
>          # just setting func.name
>          function.func_name = "on_%s_mouseClick" %
> name
>          self.addMethod(function)
>          self.components[name] = {'type':'Button',
>                                       'name':name,
>                                       'label':name,
>                                      
> 'position':(5,5+int(name[-1:]) 
> *30),
>                                       'text':name}
>          return function
> 
> 
> if __name__ == '__main__':
>      app = model.Application(Minimal, None, rsrc)
>      app.MainLoop()
> 
> 
>
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--
John Henry