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  1. Qt
  2. QTBUG-79878

TextField always clips

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P2: Important
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Quick: Controls 2
    • Labels:
    • Environment:
      Kubuntu 19.10, debug build of Qt 5.13 latest
    • Platform/s:
      Linux/X11

      Description

      While optimizing painting in an application, I discovered that TextField is a major cause of clipping. It seems to have clipping unconditionally enabled, contrary to an important performance guideline from Qt's own documentation. I created a simple example that can be run with QSG_VISUALIZE=clip qmlscene cliptest.qml.

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          Issue Links

          depends on

          Task - A task that needs to be done. QTBUG-97648 TextField clipping breaks batching; so maybe avoid populating characters outside?

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-84280 TextArea inside Flickable - cursor does not appear with LayoutMirroring.enabled

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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            Activity

              People

              Assignee:
              qt.team.quick.subscriptions Qt Quick and Widgets Team
              Reporter:
              ahartmetz Andreas Hartmetz
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                Dates

                Created:
                Updated:

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