upstream/ipython Files · IPython/quarantine/win32clip.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`.

Bernardo B. Marques - - Load All Authors

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             win32clip.py
        
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      from IPython.core import ipapi

      ip = ipapi.get()

      def clip_f( self, parameter_s = '' ):

          """Save a set of lines to the clipboard.

          Usage:\\

            %clip n1-n2 n3-n4 ... n5 .. n6 ...

          This function uses the same syntax as %macro for line extraction, but

          instead of creating a macro it saves the resulting string to the

          clipboard.

          When used without arguments, this returns the text contents of the clipboard.

          E.g.

          mytext = %clip

          """

          import win32clipboard as cl

          import win32con

          args = parameter_s.split()

          cl.OpenClipboard()

          if len( args ) == 0:

              data = cl.GetClipboardData( win32con.CF_TEXT )

              cl.CloseClipboard()

              return data

          api = self.getapi()

          if parameter_s.lstrip().startswith('='):

              rest = parameter_s[parameter_s.index('=')+1:].strip()

              val = str(api.ev(rest))

          else:

              ranges = args[0:]

              val = ''.join( self.extract_input_slices( ranges ) )

          cl.EmptyClipboard()

          cl.SetClipboardText( val )

          cl.CloseClipboard()

          print 'The following text was written to the clipboard'

          print val

      ip.define_magic( "clip", clip_f )

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				from IPython.core import ipapi

				ip = ipapi.get()

				def clip_f( self, parameter_s = '' ):
				"""Save a set of lines to the clipboard.

				Usage:\\
				%clip n1-n2 n3-n4 ... n5 .. n6 ...

				This function uses the same syntax as %macro for line extraction, but
				instead of creating a macro it saves the resulting string to the
				clipboard.

				When used without arguments, this returns the text contents of the clipboard.
				E.g.

				mytext = %clip

				"""

				import win32clipboard as cl
				import win32con
				args = parameter_s.split()
				cl.OpenClipboard()
				if len( args ) == 0:
				data = cl.GetClipboardData( win32con.CF_TEXT )
				cl.CloseClipboard()
				return data
				api = self.getapi()

				if parameter_s.lstrip().startswith('='):
				rest = parameter_s[parameter_s.index('=')+1:].strip()
				val = str(api.ev(rest))
				else:
				ranges = args[0:]
				val = ''.join( self.extract_input_slices( ranges ) )

				cl.EmptyClipboard()
				cl.SetClipboardText( val )
				cl.CloseClipboard()
				print 'The following text was written to the clipboard'
				print val

				ip.define_magic( "clip", clip_f )