Un GUI en QT et Python avec PySide

Publié le 23/04/2014

Juste un petit exemple d'application "lourde" en Python et QT, avec PySide. La fenĂȘtre ci-dessous ne tient pas compte d'Ă©ventuels traitements asynchrones; dĂšs que l'utilisateur aura cliquĂ© sur le bouton d'action, la fenĂȘtre sera figĂ©e le temps de l'exĂ©cution du processus.


from datetime import datetime
import sys

from PySide.QtGui import (
    QApplication,
    QWidget,
    QGridLayout,
    QLabel,
    QLineEdit,
    QPushButton
)

from plugins.comparingBalances import ComparingBalances

qt_app = QApplication(sys.argv)


class LayoutExample(QWidget):
    ''' An example of PySide/PyQt absolute positioning; the main window
        inherits from QWidget, a convenient widget for an empty window. '''

    def __init__(self):
        # Initialize the object as a QWidget and
        # set its title and minimum width
        QWidget.__init__(self)
        self.setWindowTitle("<Windows Title>")
        self.setMinimumWidth(550)

        # Create the QGridLayout that lays out the whole form
        self.layout = QGridLayout()

        # adds label fields.
        self.qlabel_year = QLabel(self)
        self.qlabel_year.setText('Annee de comparaison')
        self.qlabel_start_date = QLabel(self)
        self.qlabel_start_date.setText('Date de debut')
        self.qlabel_end_date = QLabel(self)
        self.qlabel_end_date.setText('Date de rupture')

        # adds input fields
        self.qtextbox_year = QLineEdit(self)
        self.qtextbox_year.setPlaceholderText('Format: yyyy')
        self.qtextbox_start_date = QLineEdit(self)
        self.qtextbox_start_date.setPlaceholderText('Format: 01/12/2014')
        self.qtextbox_end_date = QLineEdit(self)
        self.qtextbox_end_date.setPlaceholderText('Format: 01/12/2014')

        # configure the launch button
        self.launchbutton = QPushButton(self)
        self.launchbutton.setText('Demarrage')
        self.launchbutton.setToolTip('Demarrage du module')
        self.launchbutton.clicked.connect(self.buttonClicked)

        # adds all widgets to the grid layout
        self.layout.addWidget(self.qlabel_year, 0, 0)
        self.layout.addWidget(self.qtextbox_year, 0, 1)
        self.layout.addWidget(self.qlabel_start_date, 1, 0)
        self.layout.addWidget(self.qtextbox_start_date, 1, 1)
        self.layout.addWidget(self.qlabel_end_date, 2, 0)
        self.layout.addWidget(self.qtextbox_end_date, 2, 1)
        self.layout.addWidget(self.launchbutton, 3, 0, 2)
        self.layout.addWidget(self.gardesbutton, 4, 0, 2)

        self.setLayout(self.layout)

    def buttonClicked(self):
        year = int(self.qtextbox_year.text())
        start_date = self.qtextbox_start_date.text()
        end_date = self.qtextbox_end_date.text()

        ComparingBalances().manualLaunch(year, start_date, end_date)

    def run(self):
        self.show()
        qt_app.exec_()

if __name__ == '__main__':
    # Create an instance of the application window and run it
    app = LayoutExample()
    app.run()