PyQt: 练习 自定义信号 pyqtSignal

import sys
from PyQt5.Qt import *


class CPushButton(QPushButton):
    rightClicked = pyqtSignal([str], [int], [str, int])

    def mousePressEvent(self, e) -> None:
        if e.button() == Qt.RightButton:
            self.rightClicked[str].emit("Qt.RightButton")
            self.rightClicked[int].emit(Qt.RightButton)
            self.rightClicked[str, int].emit("Qt.RightButton", Qt.RightButton)
        return super(CPushButton, self).mousePressEvent(e)


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

    def setup_ui(self):
        self.setWindowTitle("Qt桌面应用程序")
        self.resize(300, 300)

        self.push_button = CPushButton("按钮", self)
        self.push_button.setObjectName("pushButton")

        # self.push_button.clicked.connect(lambda value: print("right clicked", value))

        QMetaObject.connectSlotsByName(self)

    @pyqtSlot(bool)
    def on_pushButton_clicked(self, value):
        print("left clicked", value)

    @pyqtSlot(str, int)
    def on_pushButton_rightClicked(self, value_1, value_2):
        print("right clicked", value_1, value_2)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())