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  • Do you really need a custom widget? Check whether an existing widget cannot be used instead.
  • It is strongly recommended to consult the usability team ( and the accessibility team (
  • Create interaction by following natural design. Find the appropriate metaphor and create interface as near to real usage as possible.
  • Make sure your new widget:
    • Resizes correctly
    • Handles right-to-left setups
    • Works well with different color schemes
    • Looks as close to existing Qt or kdelibs widgets as possible (use QStyle or QStylePainter to draw elements).
    • Is based on an existing widget rather than a plain QWidget if possible
  • If possible, consider making your widget reusable enough so that it can be integrated in standard widgets


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