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  1. Qt
  2. QTBUG-36937

Windows: QTabletEvent hiResGlobalX() hiResGlobalY() returns int precision values (nothing after decimal point)

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Details

    • Configureable range: cebdd91f8bbebf43fd2ec3c4dd2f49f46172d47e (stable, 28.2.2014,5.3) 8abbb6ec725c41e08db8421f3e10b15b66ba28b1

    Description

      QTabletEvent returns high resolution global coordinates with no significant figures after the decimal point (similar to integer) intermittently. Example data:

      501.42520 466.64172
469.00000 459.00000
469.77167 457.84253
421.00000 429.00000
421.00000 429.00000
394.00000 397.00000
394.00000 397.00000
373.00000 360.00000
373.00000 360.00000
361.00000 319.00000
361.00000 319.00000
360.00000 281.00000
359.98819 298.65945

      When plotted, these values form a jagged curve.

      Attachments

        1. qtbug36937_diag.diff
          2 kB
        2. qtbug36937.zip
          4 kB
        3. tablettest.zip
          4 kB
        4. WacomTabletEventIssue.png
          WacomTabletEventIssue.png
          9 kB

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-48151 Jittery tablet input in Linux does not respond to RawSampleRate

          • 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-45375 Jittery lines with Wacom tablet and QTabletEvent

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-64781 Wrong position of QTabletEvent from wacom device on windows

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

          Sub-task - The sub-task of the issue QTBUG-20115 Add floating point coordinates to all events

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          For Gerrit Dashboard: QTBUG-36937
          # Subject Branch Project Status CR V
          221967,4 Windows QPA: Fix scaling of tablet coordinates for High DPI scaling 5.11 qt/qtbase Status: MERGED +2 0
          222296,3 WIP: Windows QPA/Wintab: Support digitizer mode 5.11 qt/qtbase Status: ABANDONED -2 0
          223053,3 Windows QPA: Improve tablet mode detection 5.11 qt/qtbase Status: MERGED +2 0
          235104,3 Windows QPA: Fix tablet event coords delay for tablets in pen mode 5.11 qt/qtbase Status: MERGED +2 0

          Activity

            People

              kleint Friedemann Kleint
              gorbay Gunay Orbay
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              Dates

                Created:
                Updated:
                Resolved:

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