Qt5. Embed QWidget object in QML

by

Qt Quick 2 uses a scene graph for efficient rendering on the GPU. Unfortunately this makes it impossible to embed classic widgets into the scene. The old approach to embed such widgets with the help of QGraphicsProxyWidget works only with Qt Quick 1, because internally it uses a QGraphicsView for all the heavy lifting and QGraphicsProxyWidget is meant to be used with it.

As of now there are no plans to enable embedding classic QWidgets into the scene graph I know of. I think this is rather unlikely to change, because the concepts of QPainter, the painting framework used for the classic widgets, and the new scene graph doesn’t play well with each other.

There some efforts to develop new widgets sets specifically tailored for the needs of QML, but none of them are as powerful and mature as the classic widgets. The most prominent ones are the QML Quick Controls, bundled with Qt since version 5.1.

If you really depend on QWT my advice would be to stick with Qt Quick 1.1 for now. It’s still bundled with Qt 5, probably for cases like yours. That way you won’t take advantage of the new scene graph, though.

More Related Contents:

  1. Is there a way to access the image on the QWidget’s backing store?
  2. QLabel does not display in QWidget
  3. Qt5 Static Build yields Failed to load platform plugin “windows”
  4. Draw Rectangular overlay on QWidget at click
  5. C++ signal to QML slot in Qt
  6. QWidget does not draw background color
  7. Building Qt 5 on Linux, for Windows
  8. declare global property in QML for other QML files
  9. Error LNK1104: cannot open file ‘Debug\MyProjectLib.lib’
  10. How to make an expandable/collapsable section widget in Qt
  11. How to build Qt 4.8/5.2 statically under VS2012, using the static MSVC runtime, with Windows XP support?
  12. QML and C++ image interoperability
  13. How do I use Qt in my Visual Studio 2015 projects?
  14. Qt5 – setting background color to QPushButton and QCheckBox
  15. How to connect Python and QML with PySide2?
  16. How to change UI in same window using PyQt5?
  17. Building Qt5 with Visual Studio 2012 / Visual Studio 2013, and integrating with the IDE
  18. Get HWND on windows with Qt5 (from WId)
  19. QtWidgets.QFileDialog.getOpenFileName returns a Tuple
  20. How to insert QChartView in form with Qt Designer?
  21. How do I apply the style to a TextField in QML? It seems “style” attribute isn’t available
  22. How Can I Update a Qml Object’s Property from my Python file?
  23. How to set stylesheet for the current item in QTableView
  24. How to create scrollbar in QtQuick 2.0?
  25. How to create a round mouse area in QML
  26. How can I detect a hang in QEventLoop?
  27. QMYSQL driver available but not loaded
  28. Is there a way to take screenshot of a window in pyqt5 or qt5?
  29. Project ERROR: Unknown module(s) in QT: webkitwidgets
  30. Different delegates for QML ListView

Leave a Comment