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#!/usr/bin/python
# Terminator by Chris Jones <cmsj@tenshu.net>
# GPL v2 only
"""factory.py - Maker of objects
>>> maker = Factory()
>>> window = maker.make_window()
>>> maker.isinstance(window, 'Window')
True
>>> terminal = maker.make_terminal()
>>> maker.isinstance(terminal, 'Terminal')
True
>>> hpaned = maker.make_hpaned()
>>> maker.isinstance(hpaned, 'HPaned')
True
>>> vpaned = maker.make_vpaned()
>>> maker.isinstance(vpaned, 'VPaned')
True
"""
from borg import Borg
from util import dbg, err
# pylint: disable-msg=R0201
# pylint: disable-msg=W0613
class Factory(Borg):
"""Definition of a class that makes other classes"""
types = {'Terminal': 'terminal',
'VPaned': 'paned',
'HPaned': 'paned',
'Paned': 'paned',
'Notebook': 'notebook',
'Container': 'container',
'Window': 'window'}
def __init__(self):
"""Class initialiser"""
Borg.__init__(self, self.__class__.__name__)
self.prepare_attributes()
def prepare_attributes(self):
"""Required by the borg, but a no-op here"""
pass
def isinstance(self, product, classtype):
"""Check if a given product is a particular type of object"""
if classtype in self.types.keys():
# This is quite ugly, but we're importing from the current
# directory if that makes sense, otherwise falling back to
# terminatorlib. Someone with real Python skills should fix
# this to be less insane.
try:
module = __import__(self.types[classtype], None, None, [''])
except ImportError:
module = __import__('terminatorlib.%s' % self.types[classtype],
None, None, [''])
return(isinstance(product, getattr(module, classtype)))
else:
err('Factory::isinstance: unknown class type: %s' % classtype)
return(False)
def type(self, product):
"""Determine the type of an object we've previously created"""
for atype in self.types:
# Skip over generic types
if atype in ['Container', 'Paned']:
continue
if self.isinstance(product, atype):
return(atype)
return(None)
def make(self, product, **kwargs):
"""Make the requested product"""
try:
func = getattr(self, 'make_%s' % product.lower())
except AttributeError:
err('Factory::make: requested object does not exist: %s' % product)
return(None)
dbg('Factory::make: created a %s' % product)
return(func(**kwargs))
def make_window(self, **kwargs):
"""Make a Window"""
import window
return(window.Window(**kwargs))
def make_terminal(self, **kwargs):
"""Make a Terminal"""
import terminal
return(terminal.Terminal())
def make_hpaned(self, **kwargs):
"""Make an HPaned"""
import paned
return(paned.HPaned())
def make_vpaned(self, **kwargs):
"""Make a VPaned"""
import paned
return(paned.VPaned())
def make_notebook(self, **kwargs):
"""Make a Notebook"""
import notebook
return(notebook.Notebook(kwargs['window']))
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