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"""
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Entry point for a simple application giving a graphical frontend to
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ipython.
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"""
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try:
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import wx
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except ImportError as e:
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e.args[0] = """%s
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________________________________________________________________________________
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You need wxPython to run this application.
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""" % e.args[0]
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raise e
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from wx_frontend import WxController
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import __builtin__
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class IPythonXController(WxController):
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""" Sub class of WxController that adds some application-specific
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bindings.
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"""
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debug = False
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def __init__(self, *args, **kwargs):
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WxController.__init__(self, *args, **kwargs)
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self.ipython0.ask_exit = self.do_exit
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# Scroll to top
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maxrange = self.GetScrollRange(wx.VERTICAL)
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self.ScrollLines(-maxrange)
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def _on_key_down(self, event, skip=True):
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# Intercept Ctrl-D to quit
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if event.KeyCode == ord('D') and event.ControlDown() and \
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self.input_buffer == '' and \
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self._input_state == 'readline':
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wx.CallAfter(self.ask_exit)
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else:
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WxController._on_key_down(self, event, skip=skip)
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def ask_exit(self):
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""" Ask the user whether to exit.
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"""
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self._input_state = 'subprocess'
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self.write('\n', refresh=False)
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self.capture_output()
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self.ipython0.exit()
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self.release_output()
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if not self.ipython0.exit_now:
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wx.CallAfter(self.new_prompt,
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self.input_prompt_template.substitute(
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number=self.last_result['number'] + 1))
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else:
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wx.CallAfter(wx.GetApp().Exit)
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self.write('Exiting ...', refresh=False)
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def do_exit(self):
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""" Exits the interpreter, kills the windows.
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"""
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WxController.do_exit(self)
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self.release_output()
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wx.CallAfter(wx.Exit)
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class IPythonX(wx.Frame):
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""" Main frame of the IPythonX app.
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"""
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def __init__(self, parent, id, title, debug=False):
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wx.Frame.__init__(self, parent, id, title, size=(300,250))
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self._sizer = wx.BoxSizer(wx.VERTICAL)
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self.shell = IPythonXController(self, debug=debug)
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self._sizer.Add(self.shell, 1, wx.EXPAND)
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self.SetSizer(self._sizer)
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self.SetAutoLayout(1)
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self.Show(True)
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wx.EVT_CLOSE(self, self.on_close)
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def on_close(self, event):
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""" Called on closing the windows.
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Stops the event loop, to close all the child windows.
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"""
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wx.CallAfter(wx.Exit)
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def main():
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from optparse import OptionParser
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usage = """usage: %prog [options]
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|
Simple graphical frontend to IPython, using WxWidgets."""
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parser = OptionParser(usage=usage)
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parser.add_option("-d", "--debug",
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action="store_true", dest="debug", default=False,
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help="Enable debug message for the wx frontend.")
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options, args = parser.parse_args()
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# Clear the options, to avoid having the ipython0 instance complain
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import sys
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sys.argv = sys.argv[:1]
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app = wx.PySimpleApp()
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frame = IPythonX(None, wx.ID_ANY, 'IPythonX', debug=options.debug)
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frame.shell.SetFocus()
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frame.shell.app = app
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frame.SetSize((680, 460))
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app.MainLoop()
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if __name__ == '__main__':
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main()
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