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  1. Qt Creator
  2. QTCREATORBUG-14016

Undo and redo got slower (command + (shift) + z)

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Cannot Reproduce
    • Affects Version/s: Qt Creator 3.3.0
    • Fix Version/s: None
    • Component/s: Editors
    • Labels:
      None
    • Environment:
      OS X Yosemite
      Version 10.10.2

      Description

      Undoing or redoing code changes got quite a bit slower after changing from 3.2.2 to 3.3.0.

      I did a short comparison and timed a trivial editing operation by hand:

      (1) Open an empty .h file, .cpp file or .txt file (doesn't matter which one)
      (2) Press and hold enter to create about 60 new lines
      (3) Press and hold command + z until all lines have been removed again.
      (4) Press and hold command + shift + z until the 60 lines have been created again.

      QtCreator 3.2.2:
      (2) about 2 seconds
      (3) about 3.5 seconds
      (4) about 3.5 seconds

      QtCreator 3.3.0:
      (2) about 2 seconds
      (3) about 8 seconds
      (4) about 8 seconds

      I would say my timing precision is about 0.5 seconds. My keyboard delay until repeat is set to shortest possible setting in the system preferences.

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            • Assignee:
              davschul David Schulz
              Reporter:
              salino Martin
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              • Created:
                Updated:
                Resolved:

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