modify a bit

main.py

@@ -1,7 +1,8 @@
 import sys
 import os
 import json
-from pathlib import Path
+# from pathlib import Path
+from datetime import date
 from PySide6.QtWidgets import (
     QApplication, QMainWindow, QWidget, QVBoxLayout, QLabel,
     QPushButton, QFileDialog, QLineEdit, QListWidget, QMessageBox, QHBoxLayout, QInputDialog
@@ -15,12 +16,12 @@ class FileRenamer(QMainWindow):
     def __init__(self):
         super().__init__()
         self.setWindowTitle("批量文件重命名工具")
-        self.setMinimumSize(600, 400)
+        self.setMinimumSize(800, 600)
         self.setAcceptDrops(True)
 
         self.files = []
         self.initial_path = ""
-        self.prefix = ""
+        self.prefix = f"AI-{date.today().strftime('%Y%m%d')}-"
         self.categories = self.load_categories()
 
         central_widget = QWidget()
@@ -30,7 +31,7 @@ class FileRenamer(QMainWindow):
 
         self.info_label = QLabel("拖拽文件到此区域")
         self.info_label.setAlignment(Qt.AlignCenter)
-        self.info_label.setStyleSheet("border: 2px dashed #aaa; padding: 20px; font-size: 16px;")
+        self.info_label.setStyleSheet("border: 2px dashed #aaa; padding: 20px; font-size: 20px;")
         layout.addWidget(self.info_label)
 
         path_layout = QHBoxLayout()
@@ -39,14 +40,18 @@ class FileRenamer(QMainWindow):
         self.path_label = QLabel("未设置")
         path_layout.addWidget(self.path_btn)
         path_layout.addWidget(self.path_label)
+        path_layout.setStretch(0, 1)
+        path_layout.setStretch(1, 3)
         layout.addLayout(path_layout)
 
         prefix_layout = QHBoxLayout()
         self.prefix_btn = QPushButton("设置前缀")
         self.prefix_btn.clicked.connect(self.set_prefix)
-        self.prefix_label = QLabel("当前前缀: (无)")
+        self.prefix_label = QLabel(f"当前前缀: {self.prefix if self.prefix else '(无)'}")
         prefix_layout.addWidget(self.prefix_btn)
         prefix_layout.addWidget(self.prefix_label)
+        prefix_layout.setStretch(0, 1)
+        prefix_layout.setStretch(1, 3)
         layout.addLayout(prefix_layout)
 
         self.name_input = QLineEdit()
@@ -68,6 +73,7 @@ class FileRenamer(QMainWindow):
             event.acceptProposedAction()
 
     def dropEvent(self, event: QDropEvent):
+        self.files.clear()
         for url in event.mimeData().urls():
             file_path = url.toLocalFile()
             if os.path.isfile(file_path):
@@ -151,6 +157,9 @@ class FileRenamer(QMainWindow):
 
 if __name__ == "__main__":
     app = QApplication(sys.argv)
+    f = app.font()
+    f.setPointSize(20)
+    app.setFont(f)
     window = FileRenamer()
     window.show()
     sys.exit(app.exec())