qt-map-py/main.py

# This Python file uses the following encoding: utf-8
import sys
import os
import signal

import PyQt5
from PySide2.QtGui import QGuiApplication
from PySide2.QtQml import QQmlApplicationEngine
from PySide2.QtCore import SIGNAL, QObject, Slot

import argparse

parser = argparse.ArgumentParser(
    description="Display a map widget and make it print the selected location"
)
parser.add_argument("lat", help="latitude, as float")
parser.add_argument("lon", help="longitude, as float")
parser.add_argument(
    "--die", help="Close the app once location is selected", action="store_true"
)
args = parser.parse_args()


dirname = os.path.dirname(PyQt5.__file__)
plugin_path = os.path.join(dirname, "plugins", "platforms")
os.environ["QML2_IMPORT_PATH"] = os.path.join(dirname, "qml")

application_path = (
    os.path.join(os.path.dirname(sys.executable), "assets")
    if getattr(sys, "frozen", False)
    else os.path.join(os.path.dirname(os.path.abspath(__file__)), "assets")
)


if __name__ == "__main__":
    signal.signal(
        signal.SIGINT, signal.SIG_DFL
    )  # https://stackoverflow.com/questions/4938723/what-is-the-correct-way-to-make-my-pyqt-application-quit-when-killed-from-the-co
    app = QGuiApplication(sys.argv)
    engine = QQmlApplicationEngine()
    engine.load(os.path.join(application_path, "main.qml"))
    if not engine.rootObjects():
        sys.exit(-1)
    root = engine.rootObjects()[0]
    if len(sys.argv) == 3:
        lat = sys.argv[1]
        lon = sys.argv[2]
        root.setMapPosition(lat, lon)

    def cb():
        print(root.getSelectedLocation())
        sys.stdout.flush()
        if args.die:
            QGuiApplication.quitOnLastWindowClosed()
            root.close()

    root.selected.connect(cb)
    sys.exit(app.exec_())