DragAcceptableQLine.py

from PyQt6.QtWidgets import QLineEdit
from PyQt6.QtCore import pyqtSignal

class DragAcceptableQLine(QLineEdit):
    dropAccepted = pyqtSignal()
    """实现文件拖放功能"""
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setAcceptDrops(True)

    def dragEnterEvent(self, event):
        data = event.mimeData()
        urls = data.urls()
        if (urls and urls[0].scheme() == 'file'):
            event.acceptProposedAction()

    def dragMoveEvent(self, event):
        data = event.mimeData()
        urls = data.urls()
        if urls and urls[0].scheme() == 'file':
            event.acceptProposedAction()

    def dropEvent(self, event):
        data = event.mimeData()
        urls = data.urls()
        if urls and urls[0].scheme() == 'file':
            # for some reason, this doubles up the intro slash
            filepath = str(urls[0].path())[1:]
            self.setText(filepath)
        self.dropAccepted.emit()