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  1. Qt
  2. QTBUG-104769

pdfviewer example: Pinch zoom on laptop trackpad stops working if zoom way in

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 6.4.0, 6.5.0 Beta1
    • 6.4.0 Beta1
    • PDF
    • None
    • Code Type: ARM-64 (Native)
      OS Version: macOS 12.4 (21F79)
      Model: MacBookPro18,1, BootROM 7459.121.3, proc 10:8:2 processors, 16 GB, SMC
      Graphics: Apple M1 Pro, Apple M1 Pro, Built-In
    • macOS
    • d3bd8891b5 (qt/qtwebengine/dev) e525aa1b27 (qt/qtwebengine/6.4) e525aa1b27 (qt/tqtc-qtwebengine/6.4) cd86274b36 (qt/qtwebengine/6.4.0) cd86274b36 (qt/tqtc-qtwebengine/6.4.0)

    Description

      Open in QtCreator:

      /Users/jwb/Qt/Examples/Qt-6.4.0/pdf/pdfviewer/CMakeLists.txt

      Compile and run the app.

      Use the selector to go to page 3 (the page with the tiger, for example, as there is more detail to see on that page).

      Pinch-zoom in and out on the laptop's trackpad, zooming way in and then out.

      Eventually the pinch zoom will cease to function and only a restart fixes the problem.

      The problem seems to occur on zoom in and not zoom out.

      For example, I experienced the problem occurring at scale 16.77 (other scale values possible). In my case, scrolling left and right on the trackpad (not on the scroll bars) continued to function although the pinch zoom did not.

      Attachments

        Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-106110 PinchHandler.minimum/maximumScale properties aren't enforced with native gestures

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

          Task - A task that needs to be done. QTBUG-106094 All Pointer Handlers need to use metaproperties on target() rather than calling setters directly

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

          Task - A task that needs to be done. QTBUG-77506 develop PDF rendering strategy for Qt Quick

          • 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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-105106 BoundaryRule fails to enforce limits when property is set indirectly

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-105108 scaling issues in map.qml example

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

          Task - A task that needs to be done. QTBUG-105107 BoundaryRule: add a finished signal or notifying property to trigger QML when it's "done"

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-104769
          # Subject Branch Project Status CR V
          423043,7 WIP PdfPageView: enforce zoom limits consistently, don't get stuck dev qt/qtwebengine Status: NEW -2 0
          429865,6 PinchHandler: don't bypass property interceptors like BoundaryRule dev qt/qtdeclarative Status: NEW 0 0

          Activity

            People

              srutledg Shawn Rutledge
              jbrend Jeffrey Brendecke
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              Dates

                Created:
                Updated:
                Resolved: