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  1. Qt
  2. QTBUG-32590

two move events per move call, one in subsequent message loop

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 5.3.0
    • 5.1.0
    • Widgets: Widgets and Dialogs
    • None
    • Windows 7, Qt 5.1, MSVC 2010.
    • 72259baa76a0f1faa1983c720621676e9c15e15f (dev, 4.2.2014, 5.3), revert c3e416296a1026d7ba99cf209f5e0720ff5050b1 (6.6.2014, stable, 5.3.1?), a1c5198387fdb7db44a02bb94c56187874e67304 6.6.2014, stable, 5.3.1?)

    Description

      Widgets now receive two move events per move. The first (correct) one is synchronous with the move and reports the correct pos and oldP. The second one occurs during the next event loop due to QGuiApplicationPrivate::processGeometryChangeEvent() and has incorrect coordinates, perhaps due to the offset of the title bar.

      I've attached a small example app.
      Note that this is a possible duplicate of bug QTBUG-25631, but I am experiencing this issue in Qt 5.1, though I was not experiencing it in Qt 4.8.x

      Attachments

        1. brokenMove.zip
          1 kB
          Alex Montgomery
        2. qtbug32590.zip
          3 kB
          Friedemann Kleint
        3. sampleOutput.txt
          0.5 kB
          Alex Montgomery

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-36232 Qt 5 changes QEvent::Move behavior on Windows

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-25631 QWidget::move() function make widget move twice, one with incorrect coordinates

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-38768 When a widget is programatically resized then it will trigger a spontaneous event even though the event did not originate from the system

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-30744 QWidget receives two resizeEvent's before its first paintEvent

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-36232 Qt 5 changes QEvent::Move behavior on Windows

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
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          Activity

            People

              peppe Giuseppe D'Angelo
              apmontgo Alex Montgomery
              Votes:
              12 Vote for this issue
              Watchers:
              17 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: