Using QScxmlStateMachine data model QML

d_h_mcinnes

Hi

I found an example of using Scxml in QML here: https://doc.qt.io/qt-5/qtscxml-instantiating-state-machines.html

The example is great, it lets you do the following:

import MyStateMachine 1.0

MyStateMachine {
    id: stateMachine
}

Light {
    id: greenLight
    color: "green"
    visible: stateMachine.green // this is what I want to do, toggle visibility based on whether I am in a certain state
}

... but it only seems to work if you instantiate your state machine in QML.

In my case, I have instantiated the state machine in C++, and am having trouble making the state machine properties visible to my QML code. The generated C++ code contains a Q_PROPERTY(bool some_state), but does not include getters, setters, or 'changed' signals for each of the states. So, when some event happens, the C++ state machine enters the correct state, but the QML code doesn't receive any signal, and my green light never turns on.

Is there some way I can make my C++ Qscxml state machine transitions visible in QML land?

SGaist

Hi,

Please show the code you use. Otherwise it's impossible to start helping you.