Curriculum_Design/setup_qt_env.py

#!/usr/bin/env python3
"""
Qt环境配置脚本，确保平台插件正确加载
"""

import os
import sys

def setup_qt_environment():
    """设置Qt环境变量，避免平台插件问题"""
    
    # 获取虚拟环境的site-packages路径
    venv_path = os.environ.get('VIRTUAL_ENV', '')
    if not venv_path:
        print("警告：未检测到虚拟环境")
        return False
    
    # 构建Qt插件路径
    python_version = f"python{sys.version_info.major}.{sys.version_info.minor}"
    qt_plugin_path = os.path.join(venv_path, 'lib', python_version, 'site-packages', 'PyQt5', 'Qt5', 'plugins')
    
    if not os.path.exists(qt_plugin_path):
        print(f"错误：Qt插件路径不存在: {qt_plugin_path}")
        return False
    
    # 设置环境变量
    os.environ['QT_PLUGIN_PATH'] = qt_plugin_path
    os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = os.path.join(qt_plugin_path, 'platforms')
    
    # 对于macOS，还需要设置其他重要变量
    if sys.platform == 'darwin':
        os.environ['QT_QPA_PLATFORM'] = 'cocoa'
        # 禁用Qt的某些可能导致问题的功能
        os.environ['QT_MAC_WANTS_LAYER'] = '1'
        os.environ['QT_AUTO_SCREEN_SCALE_FACTOR'] = '1'
    
    print(f"✅ Qt环境变量设置完成")
    print(f"   QT_PLUGIN_PATH: {qt_plugin_path}")
    print(f"   QT_QPA_PLATFORM_PLUGIN_PATH: {os.environ['QT_QPA_PLATFORM_PLUGIN_PATH']}")
    
    return True

def verify_qt_setup():
    """验证Qt设置是否正确"""
    try:
        from PyQt5.QtCore import QCoreApplication
        from PyQt5.QtWidgets import QApplication
        
        # 创建QApplication实例来测试
        app = QCoreApplication.instance()
        if app is None:
            app = QApplication([])
        
        # 获取平台信息
        platform = app.platformName()
        print(f"✅ Qt平台检测成功: {platform}")
        
        return True
    except Exception as e:
        print(f"❌ Qt验证失败: {e}")
        return False

if __name__ == "__main__":
    if setup_qt_environment():
        verify_qt_setup()