qmltopy1#

(You can also check this code in the repository)

main.py

import os
from pathlib import Path
import sys
from PySide6.QtCore import QObject, QUrl, Slot
from PySide6.QtGui import QGuiApplication
from PySide6.QtQuick import QQuickView
from PySide6.QtQml import QmlElement


# To be used on the @QmlElement decorator
# (QML_IMPORT_MINOR_VERSION is optional)
QML_IMPORT_NAME = "examples.signals.qmltopy1"
QML_IMPORT_MAJOR_VERSION = 1


@QmlElement
class Console(QObject):
    """Output stuff on the console."""

    @Slot(str)
    @Slot('double')
    def output(self, s):
        print(s)

    @Slot(str)
    def outputStr(self, s):
        print(s)

    @Slot('double')
    def outputFloat(self, x):
        print(x)


if __name__ == '__main__':
    app = QGuiApplication(sys.argv)
    view = QQuickView()

    qml_file = os.fspath(Path(__file__).resolve().parent / 'view.qml')
    view.setSource(QUrl.fromLocalFile(qml_file))
    if view.status() == QQuickView.Error:
        sys.exit(-1)
    view.show()
    res = app.exec()
    # Deleting the view before it goes out of scope is required to make sure all child QML instances
    # are destroyed in the correct order.
    del view
    sys.exit(res)

view.qml

import QtQuick

import examples.signals.qmltopy1 1.0

Rectangle {
    id: page

    width: 500; height: 200
    color: "lightgray"

    Console {
        id: pyConsole
    }

    Text {
        id: helloText
        text: "Hello world!"
        anchors.horizontalCenter: page.horizontalCenter
        y: 30
        font.pointSize: 24; font.bold: true
    }

    Rectangle {
        id: button
        width: 150; height: 40
        color: "darkgray"
        anchors.horizontalCenter: page.horizontalCenter
        y: 120
        MouseArea {
            id: buttonMouseArea
            objectName: "buttonMouseArea"
            anchors.fill: parent
            onClicked: {
                // once the "console" context has been declared,
                // slots can be called like functions
                pyConsole.outputFloat(123)
                pyConsole.outputStr("foobar")
                pyConsole.output(helloText.x)
                pyConsole.output(helloText.text)
            }
        }
        Text {
            id: buttonText
            text: "Press me!"
            anchors.horizontalCenter: button.horizontalCenter
            anchors.verticalCenter: button.verticalCenter
            font.pointSize: 16
        }
    }
}