python3_cv_study/helloPyQT.py at master · shwankim7/python3_cv_study · GitHub

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from PyQt5.QtCore import *
from PyQt5.QtWidgets import *

class Form(QWidget):
    def __init__(self, parent=None):
        super(Form, self).__init__(parent)

        nameLabel = QLabel("Name:")
        self.nameLine = QLineEdit()
        self.submitButton = QPushButton("Submit")

        buttonLayout1 = QVBoxLayout()
        buttonLayout1.addWidget(nameLabel)
        buttonLayout1.addWidget(self.nameLine)
        buttonLayout1.addWidget(self.submitButton)

        self.submitButton.clicked.connect(self.submitContact)

        mainLayout = QGridLayout()
        # mainLayout.addWidget(nameLabel, 0, 0)
        mainLayout.addLayout(buttonLayout1, 0, 1)

        self.setLayout(mainLayout)
        self.setWindowTitle("Hello Qt")

    def submitContact(self):
        name = self.nameLine.text()

        if name == "":
            QMessageBox.information(self, "Empty Field",
                                    "Please enter a name and address.")
            return
        else:
            QMessageBox.information(self, "Success!",
                                    "Hello %s!" % name)


if __name__ == '__main__':
    import sys

    app = QApplication(sys.argv)

    screen = Form()
    screen.show()

    sys.exit(app.exec_())