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  1. Qt
  2. QTBUG-36659

Windows QPA should emit WindowScreenChangedEvent when appropriate

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Details

    • Task
    • Resolution: Done
    • P3: Somewhat important
    • 5.4.0
    • None
    • GUI: Window management
    • None

    • Windows

    • e276fc11fa8f3fab062a4db65a3b5efe13b6ef55 (dev, 4.6.2014, 5.4), child handling: bcaf2f08d9189c6d677143cbb8455b2a7fe900b7 (dev, 19.6.2014, 5.4)

    Description

      Until now, only Cocoa has been doing this.

      QWindowSystemInterface::handleWindowScreenChanged()

      When you drag a window from one screen to another, you can see the screen properties change; try for example with qtdeclarative/examples/quick/window/ScreenInfo.qml. It's especially useful if the screens have different resolution, so maybe fonts, icons etc. need to be rendered with different quality. (so it was needed on Cocoa because an MBP with a retina display is often connected to a non-retina external monitor)

      https://codereview.qt-project.org/#change,77263 adds it for X11 and https://codereview.qt-project.org/#change,56574 for OSX. Hopefully all platforms will have it eventually.

      Attachments

        1. qtbug36659.zip
          3 kB
          Friedemann Kleint

        Issue Links

          is required for

          Task - A task that needs to be done. QTBUG-38993 Windows: Fix High DPI issues

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-31166 QWindow setScreen doesn't actually change the screen (works fine in Qt 5.0.2)

          • 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-40266 Virtual desktop only picks up current screens

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-36696 Mac OS: Tests qmltypeloader, qqmlcomponent crash (dev branch)

          • 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-40215 Windows: Application restored to fullscreen on wrong screen when moved out of the visible area of a secondary screen

          • 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-38650 Detaching external monitor causes multiple window problems

          • 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-39320 Windows: floating QDockWidget not repositioned on screen layout change

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

          Task - A task that needs to be done. QTBUG-37881 emit ScreenChanged on Windows when moving a window to a different screen

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          For Gerrit Dashboard: QTBUG-36659
          # Subject Branch Project Status CR V
          85092,3 Windows: Emit screen changed signal of top level windows. dev qt/qtbase Status: MERGED +2 0
          85513,7 Fix screen handling for child windows. dev qt/qtbase Status: MERGED +2 0

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            People

              kleint Friedemann Kleint
              srutledg Shawn Rutledge
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              Dates

                Created:
                Updated:
                Resolved:

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