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  1. Qt for Python
  2. PYSIDE-1403

QQmlApplicationEngine and setContextProperty

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    Details

    • Type: User Story
    • Status: Open
    • Priority: Not Evaluated
    • Resolution: Unresolved
    • Affects Version/s: 5.15.0
    • Fix Version/s: None
    • Component/s: PySide
    • Labels:
      None
    • Platform/s:
      Linux/Wayland

      Description

      Hello. I know what can be used PySide with QML. For access to property in Python sourcse needed register context property for QML in Python source, like this:

      ...
      class MyMain(QObject):
       def __init__(self):
        super(MyMain, self).__init__()
      
       @Property(str)
       def myprop(self):
        return 'My Property'
      ...
      mymain = MyMain()
      engine = QQmlApplicationEngine()
      engine.rootContext().setContextProperty('mymain', mymain)
      

      in QML

      ...
       Lable {text: mymain.myprop}
      ...

       

      But i have question. Maybe create context property classes which is an attribute of the class:

      ...
      class SubCl(QObject):
       def __init__(self):
        super(SubCl, self).__init__()
      
       @Property(str)
       def subprop(self):
        return 'Sub Property'
      
      class MyMain(QObject):
       def __init__(self):
        super(MyMain, self).__init__()
        self.sub = SubCl()
      
       @Property(QObject)
       def subcl(self):
        return self.sub
      
       @Property(str)
       def myprop(self):
        return 'My Property'
      ...
      mymain = MyMain()
      engine = QQmlApplicationEngine()
      engine.rootContext().setContextProperty('mymain', mymain)
      # in QML: mymain.subcl.subprop - worked
      engine.rootContext().setContextProperty('submain', mymain.sub)
      # or
      engine.rootContext().setContextProperty('submain', mymain.subcl)
      # in QML: submain.subprop - not worked, why?
      

       

      This is bug or feature?

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            People

            Assignee:
            crmaurei Cristian Maureira-Fredes
            Reporter:
            weedman Michl Voznesensky
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              Dates

              Created:
              Updated:

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