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  1. Qt
  2. QTBUG-75486

BoundaryRule can only transform an Item around its transformOrigin

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      There's a visible issue in qtdeclarative/tests/manual/pointer/pinchAndWheel.qml : if you use the mouse wheel to rotate or scale the rectangle such that it takes the BoundaryRule into overshoot, and then release, returnToBounds() makes it jump into a different position. (You can make it "walk" around by doing that repeatedly.) That's because all it knows how to do is set the scale or rotation property: it doesn't know that the WheelHandler was transforming it around the mouse cursor.

      But this brings us back to the idea that maybe handlers that do arbitrary transforms ought to set the item's transformOriginPoint (and that should be a property so that it becomes visible to QML, too), rather than tweaking x and y to compensate for the transformation.

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          is required for

          Task - A task that needs to be done. QTBUG-100636 take BoundaryRule out of Labs to be supported API

          • Not Evaluated - Not yet evaluated/prioritized
          • Reported

          Task - A task that needs to be done. QTBUG-68108 QtLocation: start using Pointer Handlers and get rid of the C++ gesture recognition logic

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-26423 QQuickItem::transformOriginPoint lacks change notification and is read-only

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

          Task - A task that needs to be done. QTBUG-68119 add a WheelHandler

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          For Gerrit Dashboard: QTBUG-75486
          # Subject Branch Project Status CR V
          248921,5 Deprecate Item.transformOrigin, replace with transformOriginPoint dev qt/qtdeclarative Status: NEW -1 0

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              smd Jan Arve
              srutledg Shawn Rutledge
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