"""
A Simple wx example to test IPython's event loop integration.

To run this do:

In [5]: %gui wx  # or start IPython with '--gui wx'

In [6]: %run gui-wx.py

Ref: Modified from wxPython source code wxPython/samples/simple/simple.py
"""

import wx


class MyFrame(wx.Frame):
    """
    This is MyFrame.  It just shows a few controls on a wxPanel,
    and has a simple menu.
    """
    def __init__(self, parent, title):
        wx.Frame.__init__(self, parent, -1, title,
                          pos=(150, 150), size=(350, 200))

        # Create the menubar
        menuBar = wx.MenuBar()

        # and a menu
        menu = wx.Menu()

        # add an item to the menu, using \tKeyName automatically
        # creates an accelerator, the third param is some help text
        # that will show up in the statusbar
        menu.Append(wx.ID_EXIT, "E&xit\tAlt-X", "Exit this simple sample")

        # bind the menu event to an event handler
        self.Bind(wx.EVT_MENU, self.OnTimeToClose, id=wx.ID_EXIT)

        # and put the menu on the menubar
        menuBar.Append(menu, "&File")
        self.SetMenuBar(menuBar)

        self.CreateStatusBar()

        # Now create the Panel to put the other controls on.
        panel = wx.Panel(self)

        # and a few controls
        text = wx.StaticText(panel, -1, "Hello World!")
        text.SetFont(wx.Font(14, wx.SWISS, wx.NORMAL, wx.BOLD))
        text.SetSize(text.GetBestSize())
        btn = wx.Button(panel, -1, "Close")
        funbtn = wx.Button(panel, -1, "Just for fun...")

        # bind the button events to handlers
        self.Bind(wx.EVT_BUTTON, self.OnTimeToClose, btn)
        self.Bind(wx.EVT_BUTTON, self.OnFunButton, funbtn)

        # Use a sizer to layout the controls, stacked vertically and with
        # a 10 pixel border around each
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(text, 0, wx.ALL, 10)
        sizer.Add(btn, 0, wx.ALL, 10)
        sizer.Add(funbtn, 0, wx.ALL, 10)
        panel.SetSizer(sizer)
        panel.Layout()


    def OnTimeToClose(self, evt):
        """Event handler for the button click."""
        print("See ya later!")
        self.Close()

    def OnFunButton(self, evt):
        """Event handler for the button click."""
        print("Having fun yet?")


class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(None, "Simple wxPython App")
        self.SetTopWindow(frame)

        print("Print statements go to this stdout window by default.")

        frame.Show(True)
        return True


if __name__ == '__main__':

    app = wx.GetApp()
    if app is None:
        app = MyApp(redirect=False, clearSigInt=False)
    else:
        frame = MyFrame(None, "Simple wxPython App")
        app.SetTopWindow(frame)
        print("Print statements go to this stdout window by default.")
        frame.Show(True)

    try:
        from IPython.lib.inputhook import enable_wx
        enable_wx(app)
    except ImportError:
        app.MainLoop()