Re: [PyCrust] clipboard destroyed on program exit

[Robin D. <ro...@al...>]

I believe wxWindows uses the promise method.

--Robin

----- Original Message -----
From: "Patrick K. O'Brien" <po...@or...>
To: "Pycrust-Users" <pyc...@li...>
Sent: Monday, November 12, 2001 5:08 AM
Subject: RE: [PyCrust] clipboard destroyed on program exit


> Here is how I have coded the cut and copy operations:
>
>     def Cut(self):
>         """Remove selection and place it on the clipboard."""
>         if self.CanCut() and self.CanCopy():
>             if self.AutoCompActive(): self.AutoCompCancel()
>             if self.CallTipActive: self.CallTipCancel()
>             self.Copy()
>             self.ReplaceSelection('')
>
>     def Copy(self):
>         """Copy selection and place it on the clipboard."""
>         if self.CanCopy():
>             command = self.GetSelectedText()
>             command = command.replace(os.linesep + sys.ps2, os.linesep)
>             command = command.replace(os.linesep + sys.ps1, os.linesep)
>             command = self.lstripPrompt(text=command)
>             data = wxTextDataObject(command)
>             if wxTheClipboard.Open():
>                 wxTheClipboard.SetData(data)
>                 wxTheClipboard.Close()
>
>     def CopyWithPrompts(self):
>         """Copy selection, including prompts, and place it on the
> clipboard."""
>         if self.CanCopy():
>             command = self.GetSelectedText()
>             data = wxTextDataObject(command)
>             if wxTheClipboard.Open():
>                 wxTheClipboard.SetData(data)
>                 wxTheClipboard.Close()
>
> ---
> Patrick K. O'Brien
> Orbtech
> "I am, therefore I think."
>
> -----Original Message-----
> From: pyc...@li...
> [mailto:pyc...@li...]On Behalf Of Neil
Hodgson
> Sent: Monday, November 12, 2001 2:46 AM
> To: Pycrust-Users
> Subject: Re: [PyCrust] clipboard destroyed on program exit
>
> Kevin:
>
> > Patrick thought I should bring this up here to see if Neil or Robin have
> > any ideas what causes this? Is there something in wxPython or
> > Scintilla that is messing with the clipboard when the app exits? I've
> > never seen this issue when copying text from a wxTextCtrl and
> > then exiting an app, it only happens with the PyCrust shell.
>
>    This is on Windows? On X/Linux this is hard to fix as you only provide
> 'promises' (in Mac terms) of your clipboard value. Then when another app
> wants to paste, you are sent a message and you provide the full contents
of
> the clipboard. On Windows, you can either provide promises or data. The
> reason for promises is the cost in rendering and storing the selection in
> all possibly required formats when processing the copy/cut commands.
Because
> of this deep platform difference (and even worse, the asynchrony required
on
> X), Scintilla leaves it up to the platform adaptation layer to handle
> clipboard operations. So it is up to Robin ;)
>
>    Neil
>
>
>
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