跨平台字体管理器
| 11 | |
| 12 | |
| 13 | class FontManager: |
| 14 | """跨平台字体管理器""" |
| 15 | |
| 16 | def __init__(self): |
| 17 | self.system = platform.system().lower() |
| 18 | # PyQt6中QFontDatabase不需要参数 |
| 19 | self._font_database = QFontDatabase |
| 20 | |
| 21 | # 系统字体映射 - 解决macOS字体显示异常 |
| 22 | self.system_fonts = { |
| 23 | 'windows': { |
| 24 | 'default': ['Microsoft YaHei', 'SimHei', 'Arial', 'Segoe UI'], |
| 25 | 'monospace': ['Consolas', 'Courier New', 'monospace'] |
| 26 | }, |
| 27 | 'darwin': { # macOS |
| 28 | 'default': ['PingFang SC', 'Helvetica Neue', 'SF Pro Display', 'Arial'], |
| 29 | 'monospace': ['SF Mono', 'Monaco', 'Menlo', 'monospace'] |
| 30 | }, |
| 31 | 'linux': { |
| 32 | 'default': ['Noto Sans CJK SC', 'DejaVu Sans', 'Ubuntu', 'Arial'], |
| 33 | 'monospace': ['Ubuntu Mono', 'DejaVu Sans Mono', 'monospace'] |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | # 缓存选中的字体 |
| 38 | self._default_font = None |
| 39 | self._monospace_font = None |
| 40 | |
| 41 | # 初始化字体 |
| 42 | self._initialize_fonts() |
| 43 | |
| 44 | def _initialize_fonts(self): |
| 45 | """初始化系统字体""" |
| 46 | self._default_font = self._get_best_font('default') |
| 47 | self._monospace_font = self._get_best_font('monospace') |
| 48 | |
| 49 | def _get_best_font(self, font_type: str) -> str: |
| 50 | """获取最佳可用字体""" |
| 51 | font_list = self.system_fonts.get(self.system, {}).get(font_type, ['Arial']) |
| 52 | |
| 53 | for font_name in font_list: |
| 54 | if self._is_font_available(font_name): |
| 55 | return font_name |
| 56 | |
| 57 | # 如果都不可用，返回系统默认 |
| 58 | return 'Arial' if font_type == 'default' else 'monospace' |
| 59 | |
| 60 | def _is_font_available(self, font_name: str) -> bool: |
| 61 | """检查字体是否可用""" |
| 62 | try: |
| 63 | # PyQt6中QFontDatabase.families()是静态方法 |
| 64 | families = QFontDatabase.families() |
| 65 | return font_name in families |
| 66 | except: |
| 67 | return False |
| 68 | |
| 69 | def get_default_font(self, size: int = 10, bold: bool = False) -> QFont: |
| 70 | """获取默认字体""" |