switch layouts but without losing the handle

Comments

• Matthias

  November 27

  No, there is no such switch. Currently, "show_layout" will pass the ownership over the Layout object to the view.

  But you can pass a copy:

  mw.current_view().show_layout(ly1.dup(), False)
  

  If that is deleted, your original layout is left intact. But the copy and your original layout are detached. Still it's an option to display a layout object.

  Matthias
• jonathan

  December 1

  Thanks, I then rather went for the duplicate before the switch. ie:

  mw = pya.Application.instance().main_window()
  mw.create_view()
  ly1 =  pya.Layout()
  ly1.read( "design1.oas")
  ly2 =  pya.Layout()
  ly2.read( "design2.oas")
  mw.current_view().show_layout(ly1, False)
  # edit layout ly1
  ly1 =  ly1.dup()
  mw.current_view().show_layout(ly2, False)
  # edit layout ly2
  ly2 =  ly2.dup()
  mw.current_view().show_layout(ly1, False)
  
• Matthias

  December 3 edited December 3

  Hi @jonathan,

  That's also an option.

  If you like, you can raise a ticket on GitHub. I think your request is reasonable, it's just not supported yet.
  It will just be a separate class, so a kind of layout wrapper.

  Matthias
• jonathan

  December 5

  I have only used Gitub once in the past. I have raised an issue: If it is done wrong or any other problem, let me know.
  in any case no big issue: the solution above works really well and after using it I do not see any performance issue.
  Thanks for the support!
• Matthias

  December 7

  Thanks, but where did you create it?

  The issue space for KLayout is here: https://github.com/KLayout/klayout/issues

  You can refer to this discussion. GitHub tickets are a good way to publicly discuss topics and refer to them in release notes.

  Matthias
• jonathan

  7:48AM

  Hi, I created the issue in KLayout/klayout

  here is the link to the issue:
  https://github.com/KLayout/klayout/issues/2243

  I can however not see it listed in KLayout/klayout/issues
  But I do not know what I am doing wrong.
  Maybe I need some approval that it is not spam?
  Sorry for being quite ignorant there.