09_combobox.py

#
# MIT License
#
# Copyright (c) 2023-2024 Erriez
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
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# Source: https://github.com/Erriez/pyside6-getting-started
#

from PySide6.QtWidgets import QApplication, QWidget, QComboBox, QLabel, QVBoxLayout
import sys


class Window(QWidget):
    def __init__(self):
        super().__init__()

        self.resize(250, 150)
        self.setWindowTitle('QComboBox')

        # https://doc.qt.io/qtforpython/PySide6/QtWidgets/QComboBox.html
        self.combobox = QComboBox(self)
        self.combobox.addItem("Ubuntu")
        self.combobox.addItem("Mandriva")
        self.combobox.addItem("Fedora")
        self.combobox.addItem("Red Hat")
        self.combobox.addItem("Gentoo")
        self.combobox.activated.connect(self.on_combobox_activated)

        self.lbl_selected = QLabel("Ubuntu", self)

        layout = QVBoxLayout()
        layout.addWidget(self.combobox)
        layout.addWidget(self.lbl_selected)
        self.setLayout(layout)

    def on_combobox_activated(self, index):
        self.lbl_selected.setText('Selected: ' + self.combobox.itemText(index))
        self.lbl_selected.adjustSize()


def main():
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec())


if __name__ == '__main__':
    main()