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  1. Qt
  2. QTBUG-71951

add QML API for window mask

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Details

    • Suggestion
    • Resolution: Unresolved
    • P4: Low
    • None
    • None
    • Quick: Core Declarative QML
    • None

    Description

      The mask could perhaps be an image (where alpha < threshold makes that part of the window transparent) or a Shape or some sort of rendered layer or maybe just any part of the window that is transparent.

      Since most window systems do compositing, it's already been possible to have visually transparent windows since Qt 5.0. And since 5.11, a MouseArea or a Pointer Handler can avoid handling events outside a masked shape (using Item.containmentMask). But setting the window mask would allow the mouse and touch events to fall through; and it would also provide visual masking on non-compositing window managers.

      This isn't very urgent since it's easy enough to do in C++ already. But we have a number of open bugs about window masking not working correctly on various platforms and in various situations. Making the mask available in QML would exacerbate those.

      Attachments

        Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-53575 [OS X] QQuickWindow::setMask() doesn't work

          • 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-59436 On Mac mouse clicks outside mask won't go through

          • 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-64229 setMask does not work well on retina due to QRegion resolving QRegion::Ellipse to rects without scale factor

          • 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-21249 Window Handling

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-55623 QSystemTrayIcon balloon window needs smooth rendering on high-resolution screens

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-28214 Cannot make transparent (translucent) background for QQuickView

          • 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-53575 [OS X] QQuickWindow::setMask() doesn't work

          • 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-20222 setMask do not affects on DeclarativeView based window

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

          Task - A task that needs to be done. QTBUG-69906 Implement full support for QWindow::setMask on wayland

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

          Suggestion - Public suggestions QTBUG-32925 Add mask property for Item

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          For Gerrit Dashboard: QTBUG-71951
          # Subject Branch Project Status CR V
          198347,3 WIP: Add Window.mask to set QWindow::setMask() from QML dev qt/qtdeclarative Status: NEW -2 0

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              qt.team.quick.subscriptions Qt Quick and Widgets Team
              srutledg Shawn Rutledge
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              Dates

                Created:
                Updated:

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                  There is 1 open Gerrit change