Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-77142

MultiPointTouchArea does not update pressure unless x,y is changed

    XMLWordPrintable

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

        1. kernel-touch-log.txt
          2 kB
          Thomas Victor
        2. kernel-touch-log-trial-2.txt
          8 kB
          Thomas Victor
        3. kernel-touch-log-with-271481.txt
          5 kB
          Samarth Kaushik
        4. kernel-touch-log-with-workaround.txt
          7 kB
          Samarth Kaushik
        5. multi.qml
          1.0 kB
          Thomas Victor
        6. pressuretest.qml
          5 kB
          Shawn Rutledge
        7. qmlscene-log.txt
          0.2 kB
          Thomas Victor
        8. qmlscene-log+NoCompression+patches(271481_275093_275094_275096_276084_276087).txt
          9 kB
          Samarth Kaushik
        9. qmlscene-log+patches(271481_275093_275094_275096_276084_276087).txt
          35 kB
          Samarth Kaushik
        10. qmlscene-log-trial-2.txt
          3 kB
          Thomas Victor
        11. qmlscene-log-with-271481.txt
          0.1 kB
          Samarth Kaushik
        12. qmlscene-log-With-move+patches(271481_275093_275094_275096).txt
          17 kB
          Samarth Kaushik
        13. qmlscene-log-Without-move+patches(271481_275093_275094_275096).txt
          6 kB
          Samarth Kaushik
        14. qmlscene-log-with-workaround.txt
          3 kB
          Samarth Kaushik
        15. qtbug77142.tgz
          5 kB
          Shawn Rutledge

        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
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              srutledg Shawn Rutledge
              thomasvictor Thomas Victor
              Votes:
              1 Vote for this issue
              Watchers:
              11 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: