upstream/ipython Files · IPython/lib/inputhookgtk3.py

Prevent qtconsole frontend freeze on lots of output....

Prevent qtconsole frontend freeze on lots of output. The output from the kernel is now clipped to last `buffer_size` before displaying and a timer is used to flush the pending output text instead of attempting to display text on every stream output from kernel. The timer interval is adjusted based on actual time taken to append a screenful of text to widget. This throttles the widget repaints and avoids choking the Qt event loop leaving time to handle other Qt events. Test cases: In [1]: for i in xrange(1000000): print i In [2]: range(100000) Without this commit the first input causes the qtconsole frontend to freeze, not responding to `Ctrl+C`.

Thomi Richards - - Load All Authors

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             inputhookgtk3.py
        
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      # encoding: utf-8

      """

      Enable Gtk3 to be used interacive by IPython.

      Authors: Thomi Richards

      """

      #-----------------------------------------------------------------------------

      # Copyright (c) 2012, the IPython Development Team.

      #

      # Distributed under the terms of the Modified BSD License.

      #

      # The full license is in the file COPYING.txt, distributed with this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      import sys

      from gi.repository import Gtk, GLib

      #-----------------------------------------------------------------------------

      # Code

      #-----------------------------------------------------------------------------

      def _main_quit(*args, **kwargs):

          Gtk.main_quit()

          return False

      def inputhook_gtk3():

          GLib.io_add_watch(sys.stdin, GLib.IO_IN, _main_quit)

          Gtk.main()

          return 0

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				# encoding: utf-8
				"""
				Enable Gtk3 to be used interacive by IPython.

				Authors: Thomi Richards
				"""
				#-----------------------------------------------------------------------------
				# Copyright (c) 2012, the IPython Development Team.
				#
				# Distributed under the terms of the Modified BSD License.
				#
				# The full license is in the file COPYING.txt, distributed with this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				import sys
				from gi.repository import Gtk, GLib

				#-----------------------------------------------------------------------------
				# Code
				#-----------------------------------------------------------------------------

				def _main_quit(args, *kwargs):
				Gtk.main_quit()
				return False


				def inputhook_gtk3():
				GLib.io_add_watch(sys.stdin, GLib.IO_IN, _main_quit)
				Gtk.main()
				return 0