[PyQt] Problem with signal and slot arguments

[Maurizio Berti]

Il giorno mar 29 ott 2019 alle ore 15:21 Dennis Jensen <
djensen at pgcontrols.com> ha scritto:

> Actually I do not think the pyqtSlot can take that data type from what I
> understand is they only deal in primitives (int, str, object)
>

No, any python type object (even custom ones) or string representations of
Qt classes can be used:
https://www.riverbankcomputing.com/static/Docs/PyQt5/signals_slots.html#the-pyqtslot-decorator

So, all the following decorators are valid and correctly recognized (or
raise errors if the signal is not recognized as compatible):

class SomeCustomObject(object):
    def __init__(self):
        self.color = QtGui.QColor(QtCore.Qt.red)

class MySender(QtCore.QObject):
    mySignal = QtCore.pyqtSignal([SomeCustomObject], [SomeCustomObject,
QtGui.QColor], ['QColor'])

class MyReceiver(QtCore.QObject):
    @QtCore.pyqtSlot(SomeCustomObject)
    def slotTest(self, obj):
        print(obj.color.getRgb())

    @QtCore.pyqtSlot(SomeCustomObject, QtGui.QColor)
    def slotTest(self, obj, color):
        print(obj.color.getRgb(), color.getRgb())

    @QtCore.pyqtSlot('QColor')
    def slotTest(self, color):
        print(color.getRgb())

-- 
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