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"""
Adapted from wxPython website at http://wiki.wxpython.org/ModelViewController/.
:copyright: Copyright since 2006 by Oliver Schoenborn, all rights reserved.
:license: BSD, see LICENSE.txt for details.
"""
import wx
from pubsub import pub
from pubsub.py2and3 import print_
print_('pubsub API version', pub.VERSION_API)
# notification
from pubsub.utils.notification import useNotifyByWriteFile
import sys
useNotifyByWriteFile(sys.stdout)
# the following two modules don't know about each other yet will
# exchange data via pubsub:
from wx_win1 import View
from wx_win2 import ChangerWidget
class Model:
def __init__(self):
self.myMoney = 0
def addMoney(self, value):
self.myMoney += value
#now tell anyone who cares that the value has been changed
pub.sendMessage("money_changed", money=self.myMoney)
def removeMoney(self, value):
self.myMoney -= value
#now tell anyone who cares that the value has been changed
pub.sendMessage("money_changed", money=self.myMoney)
class Controller:
def __init__(self):
self.model = Model()
#set up the first frame which displays the current Model value
self.view1 = View()
self.view1.setMoney(self.model.myMoney)
#set up the second frame which allows the user to modify the Model's value
self.view2 = ChangerWidget()
self.view1.Show()
self.view2.Show()
pub.subscribe(self.changeMoney, 'money_changing')
def changeMoney(self, amount):
if amount >= 0:
self.model.addMoney(amount)
else:
self.model.removeMoney(-amount)
if __name__ == "__main__":
app = wx.App()
c = Controller()
sys.stdout = sys.__stdout__
print_('---- Starting main event loop ----')
app.MainLoop()
print_('---- Exited main event loop ----')
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