got the first two steps of the basic demo done...

Author: ChrisBarker-NOAA

week-09/code/basic_app_2.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+
+"""
+Example of the very basic, minimal farmework for a wxPython application
+"""
+
+import wx
+
+
+class AppLogic(object):
+    """
+    A class to hold the application Application Logic.
+
+    You generally don't want the real logic of the app mixed
+    in with the GUI
+
+    In a real app, this would be a substantial collection of 
+    modules, classes, etc...
+    """
+    def file_open(self, filename="default_name"):
+        """This method opens a file"""
+        print "Open a file: "
+        print "I'd be opening file: %s now"%filename
+
+    def file_close(self):
+        """This method closes a file"""
+        print "Close a file: "
+        print "I'd be closing a file now"
+ 
+
+class TestFrame(wx.Frame):
+    def __init__(self, app_logic, *args, **kwargs):
+        kwargs.setdefault('title', "Simple test App")
+        wx.Frame.__init__(self, *args, **kwargs)
+
+        self.app_logic = app_logic
+
+        # Add a panel so it looks the correct on all platforms
+        self.panel = wx.Panel(self, wx.ID_ANY)
+ 
+
+        # Build up the menu bar:
+        menuBar = wx.MenuBar()
+        
+        fileMenu = wx.Menu()
+        openMenuItem = fileMenu.Append(wx.ID_ANY, "&Open", "Open a file" )
+        self.Bind(wx.EVT_MENU, self.onOpen, openMenuItem)
+
+        closeMenuItem = fileMenu.Append(wx.ID_ANY, "&Close", "Close a file" )
+        self.Bind(wx.EVT_MENU, self.onClose, closeMenuItem)
+
+        exitMenuItem = fileMenu.Append(wx.ID_EXIT, "Exit", "Exit the application")
+        self.Bind(wx.EVT_MENU, self.onExit, exitMenuItem)
+        menuBar.Append(fileMenu, "&File")
+        
+        helpMenu = wx.Menu()
+        helpMenuItem = helpMenu.Append(wx.ID_HELP, "Help", "Get help")
+        menuBar.Append(helpMenu, "&Help")
+
+        self.SetMenuBar(menuBar)
+
+    def onOpen(self, evt=None):
+        print "open menu selected"
+        self.app_logic.file_open()
+
+    def onClose(self, evt=None):
+        print "close menu selected"
+        self.app_logic.file_close()
+
+    def onExit(self, evt=None):
+        print "Exit the program here"
+        print "The event passed to onExit is type ", type(evt),
+        self.Close()
+
+
+class TestApp(wx.App):
+    def OnInit(self):
+        """
+        App initilization goes here -- not much to do, in this case
+        """
+        app_logic = AppLogic()
+        f = TestFrame(app_logic, parent=None)
+        f.Show()
+
+        return True
+
+if __name__ == "__main__":
+    app = TestApp()
+    app.MainLoop()
+