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  1. Qt
  2. QTBUG-68571

[xcb][eglfs][wayland] QCursor does not support hidpi pixmaps

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    Description

      On the cocoa and windows platforms a QCursor's hotspot coordinates are given in device-independent pixels and it's pixmap is scaled according to it's devicePixelRatio.

      On the xcb, wayland, and eglfs platforms a QCursor's hotspot coordinates are in physical pixels and it's pixmap's devicePixelRatio is ignored.

      It would be cool if the behavior was consistent across platforms.

      Attached example works as expected on Windows (cursor is scaled and hotspot is always in the middle) but not Linux/X11 (cursor is not scaled or hotspot is incorrect).

      Attachments

        1. bitmapcursor.png
          21 kB
          Jüri Valdmann
        2. bitmapcursor.zip
          2 kB
          Jüri Valdmann

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-34116 QCursor does not support hi-dpi (retina) resolution

          • 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-52276 [Win] Custom QCursor hotspot not set correctly when using a High DPI display and Qt::AA_EnableHighDpiScaling is set

          • 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-56555 Need clarification of QScreen::geometry() for High DPI screens

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

          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. QTBUG-79472 Finish remaining High DPI issues in Qt 5

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-68376 Zoom in/out mouse cursor has wrong hotspot

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-68571
          # Subject Branch Project Status CR V
          319433,5 WIP: xcb: support hidpi pixmap in QCursor dev qt/qtbase Status: NEW -2 0

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              liaqi Liang Qi
              juri.valdmann Jüri Valdmann (Inactive)
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                Created:
                Updated:

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