import sys
from PySide6 import QtCore, QtGui, QtWidgets
from PySide6.QtUiTools import QUiLoader
from pathlib import Path
from PySide6.QtWidgets import QFileDialog, QMainWindow


class MainWindows(QMainWindow):
    UI_FILE = 'ui/main_window.ui'
    def __init__(self):
        super(MainWindows, self).__init__()

        self.ui = QUiLoader().load(self.UI_FILE)

        self.ui.SelectFileBtn.clicked.connect(self.select_excel_file)

    # 点击选择文件按钮后，弹出选择EXCEL窗口。
    def select_excel_file(self):
        # 弹窗标题
        caption = "请选择EXCEL文件"
        # 起始目录
        start_dir = str(Path.home())
        # 文件类型过滤器
        filters = "Excel 文件 (*.xlsx *.xls);;所有文件 (*.*)"
        # 选择EXCEL文件
        file_path, _ = QFileDialog.getOpenFileName(None, caption, start_dir, filters)

        if file_path:
            self.ui.FileNameEdt.setText(str(file_path))
            print(file_path)


if __name__ == '__main__':
    UI_FILE = "uv/main_window.ui"
    app = QtWidgets.QApplication(sys.argv)
    # 设置应用程序样式
    app.setStyle("Fusion")

    main = MainWindows()
    main.ui.show()
    sys.exit(app.exec())