界面优化

src/gui/components/__init__.py

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+# src.gui.components package

src/gui/components/custom_widgets.py

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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+自定义组件 - 文件选择控件等公共组件
+"""
+
+import os
+
+from PyQt5.QtWidgets import (
+    QWidget, QHBoxLayout, QLabel, QLineEdit, QPushButton, QFileDialog,
+)
+from PyQt5.QtCore import Qt
+
+
+class FileSelectWidget(QWidget):
+    """文件选择组件"""
+    def __init__(self, label_text, file_filter="All Files (*.*)", mode="open", parent=None):
+        """
+        初始化文件选择组件
+
+        Args:
+            label_text: 标签文本
+            file_filter: 文件过滤器
+            mode: 选择模式 - "open"(打开文件) 或 "save"(保存文件)
+            parent: 父控件
+        """
+        super().__init__(parent)
+        self.file_filter = file_filter
+        self.mode = mode  # "open" 或 "save"
+        self.init_ui(label_text)
+
+    def init_ui(self, label_text):
+        layout = QHBoxLayout()
+        layout.setContentsMargins(0, 0, 0, 0)
+
+        self.label = QLabel(label_text)
+        self.label.setMinimumWidth(120)
+        self.line_edit = QLineEdit()
+        placeholder = "请选择保存路径..." if self.mode == "save" else "请选择文件..."
+        self.line_edit.setPlaceholderText(placeholder)
+        self.browse_btn = QPushButton("浏览...")
+        self.browse_btn.setMaximumWidth(80)
+        self.browse_btn.clicked.connect(self.browse_file)
+
+        layout.addWidget(self.label)
+        layout.addWidget(self.line_edit, 1)
+        layout.addWidget(self.browse_btn)
+
+        self.setLayout(layout)
+
+    def browse_file(self):
+        """浏览文件"""
+        current_text = self.line_edit.text().strip()
+        initial_dir = ""
+
+        if current_text:
+            dir_path = os.path.dirname(current_text)
+            if dir_path and os.path.exists(dir_path):
+                initial_dir = dir_path
+
+        if self.mode == "save":
+            file_path, _ = QFileDialog.getSaveFileName(
+                self, "保存文件", initial_dir, self.file_filter
+            )
+        else:
+            file_path, _ = QFileDialog.getOpenFileName(
+                self, "选择文件", initial_dir, self.file_filter
+            )
+        if file_path:
+            self.line_edit.setText(file_path)
+
+    def get_path(self):
+        """获取路径"""
+        return self.line_edit.text()
+
+    def set_path(self, path):
+        """设置路径"""
+        self.line_edit.setText(str(path))