Posted By

trurl on 11/29/12

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mvc

/ Published in: Python

Minimal mvc sample code with python + wx

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#!/usr/bin/env python

import wx
from math import sqrt

class Model:
    def __init__(self, callback):
        self._path = 0
	self._x = None
	self._y = None
	self._notify = callback

def updatePos(self, x,y):
	if self._x is not None:
		self._path += sqrt( (x - self._x)**2 + (y - self._y)**2 )		
	self._x = x
	self._y = y
	self._notify()

def path(self):
	return self._path

class View(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="Main View")

sizer = wx.BoxSizer(wx.VERTICAL)
        self._mousePath = wx.TextCtrl(self)
        sizer.Add(wx.StaticText(self, label="Mouse Path"), 0, wx.EXPAND | wx.ALL)
        sizer.Add(self._mousePath, 0, wx.EXPAND | wx.ALL)
        self.SetSizer(sizer)

def setPath(self, path):
        self._mousePath.SetValue(str(path))

class Controller:
    def __init__(self):
        self._model = Model(self._onUpdate)
        self._view = View()
        self._view.setPath(self._model.path())

self._view.Bind(wx.EVT_MOTION, self.onMouseMotion)
        self._view.Show()

def _onUpdate(self):
        self._view.setPath(self._model.path())

def onMouseMotion(self, evt):
	self._model.updatePos(evt.GetX(), evt.GetY())

if __name__ == "__main__":
    app = wx.App(False)
    controller = Controller()
    app.MainLoop()

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