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  1. Qt
  2. QTBUG-46068

Drag operation doesn't support Retina screen resolution

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 5.6.1
    • 5.5.0 Beta
    • GUI: Drag and Drop
    • None
    • OS X 10.9.5

    Description

      Dragged elements are blurred on Retina screen.

      It affects default dragging (for example, from QListWidget), but also custom drag operations.

      QDrag with QPixmap of pixel ratio value 2.0 is shown 2x bigger than it needs to be.

      Attached a screenshot and a sample project.

      Found initially on Qt 5.4, but now checked with qt-opensource-mac-x64-clang-5.5.0-beta_2015-05-11_07-25-48-56.dmg

      Attachments

        1. after-147791.png
          after-147791.png
          39 kB
        2. after-147791-and-147540.png
          after-147791-and-147540.png
          40 kB
        3. qtbug46068.zip
          1 kB
        4. RETINA_DRAG_BLUR.png
          RETINA_DRAG_BLUR.png
          40 kB
        5. RETINA_DRAG.zip
          2 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-48253 Drag and drop: Information/QPixmap is blurry on retina displays

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

            People

              alexandru.croitor Alexandru Croitor
              sergey_pashkov Sergey Pashkov
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              Dates

                Created:
                Updated:
                Resolved: