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  1. Qt
  2. QTBUG-77142

MultiPointTouchArea does not update pressure unless x,y is changed

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Details

    • Linux/Other display system
    • 1b0c45f683cef20aacc8f40273aa89200e9924e4 217dd1b3b03cd40b4bb926631464c684f7f84a69 bc35941dbbf6cbd09805a2217ecb062c565855ad ee9bc61cd906505271bad887664c15b9397906ab (qtbase); ae346195efaca5d01b67c5df1209512c7edaddb0 (qtdeclarative)

    Description

      When using a MultiPointTouchArea on a display that supports pressure there are no updates to pressure property of the TouchPoint unless the x/y value is also changed.

      Expected: Pressure can be updated independently of position.

       

      Attachments: 

      kernal-touch-log.txt: output of linux touch driver

      qmlscene-log.txt: output of events from included multi.qml which tests MultiPointTouchArea

      multi.qml: Sample QML file that can be ran with qmlscene to observe the issue. 

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-52510 a stationary QTouchEvent::TouchPoint is not delivered even if it represents a change in velocity (TUIO)

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-40167 Nested PinchArea and MultiPointTouchArea blocking events

          • P4: Low - Would be nice to fix, but it's not very important.
          • Closed

          Suggestion - Public suggestions QTBUG-79038 Way to mimic iOS's "3D Touch" in QML

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          For Gerrit Dashboard: QTBUG-77142
          # Subject Branch Project Status CR V
          271477,1 evdev: handle touchscreen pressure change by sending "moved" touchpoints 5.12 qt/qtbase Status: ABANDONED 0 0
          271481,3 Deliver stationary touchpoints that have changed pressure 5.12 qt/qtbase Status: MERGED +2 0
          272223,11 Handle "interesting" stationary touchpoints as if they moved 5.14 qt/qtdeclarative Status: MERGED +2 0
          273833,1 Add MultiPointTouchArea autotest for stationary tp changing pressure 5.14 qt/qtdeclarative Status: ABANDONED 0 0
          274098,10 Mark stationary touch points as updated if pressure or velocity changes 5.14 qt/qtbase Status: MERGED +2 0
          274567,1 Add QTouchEvent::TouchPoint::isStationaryWithModifiedProperty() 5.14 qt/qtbase Status: ABANDONED -2 0
          274670,6 Add QQuickMultiPointTouchArea as a friend of QTouchEvent 5.14 qt/qtbase Status: MERGED +2 0
          275093,2 Mark stationary touch points as updated if pressure or velocity changes 5.12 qt/qtbase Status: MERGED +2 0
          275094,2 Add QQuickMultiPointTouchArea as a friend of QTouchEvent 5.12 qt/qtbase Status: MERGED +2 0
          275096,2 Handle "interesting" stationary touchpoints as if they moved 5.12 qt/qtdeclarative Status: MERGED +2 0
          275717,2 evdevtouch: Report stationary touchpoints that include pressure changes 5.12 qt/qtbase Status: MERGED +2 0
          276084,2 evdevtouch: Report stationary touchpoints that include pressure changes 5.14 qt/qtbase Status: MERGED +2 0
          276087,3 Add qt.qpa.input.events logging to evdevtouch 5.14 qt/qtbase Status: MERGED +2 0
          298235,2 Add qt.qpa.input.events logging to evdevtouch dev qt/qtbase Status: ABANDONED +2 0
          314213,3 Get rid of QMutableEventPoint::stationaryWithModifiedProperty dev qt/qtbase Status: MERGED +2 0
          314289,7 Get rid of QMutableEventPoint::stationaryWithModifiedProperty dev qt/qtdeclarative Status: MERGED +2 0

          Activity

            People

              srutledg Shawn Rutledge
              thomasvictor Thomas Victor
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              Dates

                Created:
                Updated:
                Resolved: