PNG图片渲染实现

class UIRenderer:
    """UI渲染器 - 核心图片渲染类"""
    
    def __init__(self, config_path: str = "config/model_config.yaml", 
                 tokens_path: str = "config/ui_tokens.json"):
        """初始化渲染器"""
        with open(config_path, 'r', encoding='utf-8') as f:
            self.config = yaml.safe_load(f)
        
        with open(tokens_path, 'r', encoding='utf-8') as f:
            self.tokens = json.load(f)
        
        # 图片尺寸配置
        self.width = self.config["render"]["image"]["width"]   # 375
        self.height = self.config["render"]["image"]["height"] # 812
        self.dpi = self.config["render"]["image"]["dpi"]       # 72
        
        # 字体设置
        self.fonts = self._load_fonts()
        
        # 组件渲染器映射
        self.component_renderers = {
            "topbar": self._render_topbar,
            "tabs": self._render_tabs,
            "card-list": self._render_card_list,
            "carousel": self._render_carousel,
            "price": self._render_price,
            "seller": self._render_seller,
            "proof": self._render_proof,
            "cta": self._render_cta,
            "tabbar": self._render_tabbar,
            "user-info": self._render_user_info,
            "menu-list": self._render_menu_list,
            "form": self._render_form,
            "filters": self._render_filters
        }

def _load_fonts(self) -> Dict[str, Any]:
    """加载字体系统"""
    fonts = {}
    try:
        # 尝试加载系统字体
        fonts["small"] = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 12)
        fonts["medium"] = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 16)
        fonts["large"] = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)
        fonts["title"] = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 24)
    except:
        # 回退到默认字体
        fonts["small"] = ImageFont.load_default()
        fonts["medium"] = ImageFont.load_default()
        fonts["large"] = ImageFont.load_default()
        fonts["title"] = ImageFont.load_default()
    
    return fonts

# 字体配置参数
font_config = {
    "sizes": {
        "small": 12,    # 小字体，用于辅助信息
        "medium": 16,   # 中等字体，用于正文
        "large": 20,    # 大字体，用于标题
        "title": 24     # 标题字体，用于页面标题
    },
    "weights": {
        "normal": "DejaVuSans.ttf",
        "bold": "DejaVuSans-Bold.ttf"
    },
    "fallback": "default"  # 回退字体
}

def _get_theme_colors(self, theme: str) -> Dict[str, str]:
    """获取主题颜色配置"""
    return self.tokens["themes"].get(theme, self.tokens["themes"]["obsidian-gold"])["colors"]

def _hex_to_rgb(self, hex_color: str) -> Tuple[int, int, int]:
    """十六进制颜色转RGB"""
    hex_color = hex_color.lstrip('#')
    return tuple(int(hex_color[i:i+2], 16) for i in (0, 2, 4))

# 主题颜色配置示例（obsidian-gold）
theme_colors = {
    "primary": "#FFD700",        # 主色调 - 金色
    "secondary": "#B8860B",      # 辅助色 - 深金色
    "background": "#0E0E0E",     # 背景色 - 深黑色
    "surface": "#1A1A1A",        # 表面色 - 深灰色
    "text": "#FFFFFF",           # 文本色 - 白色
    "text_secondary": "#CCCCCC", # 次要文本色 - 浅灰色
    "border": "#333333",         # 边框色 - 中灰色
    "accent": "#FF6B35",         # 强调色 - 橙色
    "success": "#4CAF50",        # 成功色 - 绿色
    "warning": "#FF9800",        # 警告色 - 橙色
    "error": "#F44336"           # 错误色 - 红色
}

def _draw_rounded_rect(self, draw: ImageDraw.Draw, bbox: Tuple[int, int, int, int], 
                      radius: int, fill: str = None, outline: str = None):
    """绘制圆角矩形"""
    x1, y1, x2, y2 = bbox
    
    # 绘制圆角矩形
    draw.rounded_rectangle(bbox, radius=radius, fill=fill, outline=outline)

def _draw_text_centered(self, draw: ImageDraw.Draw, text: str, bbox: Tuple[int, int, int, int], 
                       font: ImageFont, fill: Tuple[int, int, int]):
    """居中绘制文本"""
    x1, y1, x2, y2 = bbox
    
    # 获取文本边界框
    text_bbox = draw.textbbox((0, 0), text, font=font)
    text_width = text_bbox[2] - text_bbox[0]
    text_height = text_bbox[3] - text_bbox[1]
    
    # 计算居中位置
    text_x = x1 + (x2 - x1 - text_width) // 2
    text_y = y1 + (y2 - y1 - text_height) // 2
    
    # 绘制文本
    draw.text((text_x, text_y), text, fill=fill, font=font)

def _render_topbar(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                  y_offset: int) -> int:
    """渲染顶部栏"""
    height = 44
    bg_color = self._hex_to_rgb(theme_colors["surface"])
    text_color = self._hex_to_rgb(theme_colors["text"])
    
    # 绘制背景
    self._draw_rounded_rect(draw, (0, y_offset, self.width, y_offset + height), 
                           0, fill=bg_color)
    
    # 绘制标题或Logo
    props = section.get("props", {})
    if "title" in props:
        title = props["title"]
        draw.text((16, y_offset + 12), title, fill=text_color, font=self.fonts["title"])
    elif "logo" in props:
        logo = props["logo"]
        draw.text((16, y_offset + 12), logo, fill=text_color, font=self.fonts["title"])
    
    # 绘制操作按钮
    actions = props.get("actions", [])
    x = self.width - 16
    for action in reversed(actions):
        if action == "search":
            draw.text((x - 20, y_offset + 12), "", fill=text_color, font=self.fonts["medium"])
        elif action == "bell":
            draw.text((x - 40, y_offset + 12), "🔔", fill=text_color, font=self.fonts["medium"])
        elif action == "share":
            draw.text((x - 20, y_offset + 12), "📤", fill=text_color, font=self.fonts["medium"])
        elif action == "favorite":
            draw.text((x - 40, y_offset + 12), "❤️", fill=text_color, font=self.fonts["medium"])
        elif action == "settings":
            draw.text((x - 20, y_offset + 12), "️", fill=text_color, font=self.fonts["medium"])
        x -= 30
    
    return y_offset + height

def _render_tabs(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                y_offset: int) -> int:
    """渲染标签页"""
    height = 40
    bg_color = self._hex_to_rgb(theme_colors["surface"])
    text_color = self._hex_to_rgb(theme_colors["text"])
    active_color = self._hex_to_rgb(theme_colors["primary"])
    
    # 绘制背景
    self._draw_rounded_rect(draw, (0, y_offset, self.width, y_offset + height), 
                           0, fill=bg_color)
    
    # 绘制标签
    props = section.get("props", {})
    items = props.get("items", [])
    active = props.get("active", 0)
    
    tab_width = self.width // len(items) if items else self.width
    for i, item in enumerate(items):
        x = i * tab_width
        color = active_color if i == active else text_color
        
        # 绘制标签背景
        if i == active:
            self._draw_rounded_rect(draw, (x + 4, y_offset + 4, x + tab_width - 4, y_offset + height - 4), 
                                   8, fill=active_color)
            color = self._hex_to_rgb(theme_colors["background"])
        
        # 绘制标签文字
        text_bbox = draw.textbbox((0, 0), item, font=self.fonts["medium"])
        text_width = text_bbox[2] - text_bbox[0]
        text_x = x + (tab_width - text_width) // 2
        draw.text((text_x, y_offset + 8), item, fill=color, font=self.fonts["medium"])
    
    return y_offset + height

def _render_tabbar(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                  y_offset: int) -> int:
    """渲染底部导航栏"""
    height = 60
    bg_color = self._hex_to_rgb(theme_colors["surface"])
    text_color = self._hex_to_rgb(theme_colors["text"])
    active_color = self._hex_to_rgb(theme_colors["primary"])
    
    # 绘制背景
    self._draw_rounded_rect(draw, (0, y_offset, self.width, y_offset + height), 
                           0, fill=bg_color)
    
    # 绘制导航项
    props = section.get("props", {})
    items = props.get("items", [])
    
    item_width = self.width // len(items) if items else self.width
    for i, item in enumerate(items):
        x = i * item_width
        
        # 图标映射
        icon_map = {
            "home": "🏠", "search": "", "plus": "➕", 
            "message": "💬", "user": "👤"
        }
        icon = icon_map.get(item, "📱")
        
        # 选择颜色
        color = active_color if i == 0 else text_color
        
        # 绘制图标
        draw.text((x + item_width // 2 - 10, y_offset + 8), icon, fill=color, font=self.fonts["medium"])
        
        # 绘制标签
        label_map = {
            "home": "首页", "search": "搜索", "plus": "发布",
            "message": "消息", "user": "我的"
        }
        label = label_map.get(item, item)
        draw.text((x + item_width // 2 - 10, y_offset + 35), label, fill=color, font=self.fonts["small"])
    
    return y_offset + height

def _render_card_list(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                     y_offset: int) -> int:
    """渲染卡片列表"""
    props = section.get("props", {})
    columns = props.get("columns", 2)
    card_props = props.get("card", {})
    
    # 计算卡片尺寸
    card_width = (self.width - 32 - (columns - 1) * 8) // columns
    card_height = 120
    
    # 绘制卡片
    cards_per_row = columns
    rows = 3  # 显示3行卡片
    
    for row in range(rows):
        for col in range(cards_per_row):
            x = 16 + col * (card_width + 8)
            y = y_offset + row * (card_height + 8)
            
            # 绘制卡片背景
            card_bg = self._hex_to_rgb(theme_colors["surface"])
            self._draw_rounded_rect(draw, (x, y, x + card_width, y + card_height), 
                                   8, fill=card_bg)
            
            # 绘制卡片内容
            self._render_product_card(draw, card_props, theme_colors, x, y, card_width, card_height)
    
    return y_offset + rows * (card_height + 8)

def _render_product_card(self, draw: ImageDraw.Draw, card_props: Dict, theme_colors: Dict,
                       x: int, y: int, width: int, height: int):
    """渲染商品卡片"""
    text_color = self._hex_to_rgb(theme_colors["text"])
    secondary_color = self._hex_to_rgb(theme_colors["text_secondary"])
    primary_color = self._hex_to_rgb(theme_colors["primary"])
    
    # 绘制商品图片占位符
    img_height = int(height * 0.6)
    img_bg = self._hex_to_rgb(theme_colors["border"])
    self._draw_rounded_rect(draw, (x + 4, y + 4, x + width - 4, y + img_height), 
                           4, fill=img_bg)
    
    # 绘制商品标题
    title = "商品标题"
    draw.text((x + 8, y + img_height + 8), title, fill=text_color, font=self.fonts["small"])
    
    # 绘制价格
    price = "￥1999"
    draw.text((x + 8, y + height - 20), price, fill=primary_color, font=self.fonts["medium"])

def _render_carousel(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                    y_offset: int) -> int:
    """渲染轮播图"""
    height = 200
    bg_color = self._hex_to_rgb(theme_colors["border"])
    
    # 绘制轮播图背景
    self._draw_rounded_rect(draw, (16, y_offset, self.width - 16, y_offset + height), 
                           8, fill=bg_color)
    
    # 绘制轮播图指示器
    indicator_y = y_offset + height - 20
    for i in range(3):
        x = self.width // 2 - 20 + i * 12
        color = self._hex_to_rgb(theme_colors["primary"]) if i == 0 else self._hex_to_rgb(theme_colors["text_secondary"])
        draw.ellipse((x, indicator_y, x + 8, indicator_y + 8), fill=color)
    
    return y_offset + height

def _render_price(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                 y_offset: int) -> int:
    """渲染价格区域"""
    height = 60
    props = section.get("props", {})
    value = props.get("value", "￥1999")
    original = props.get("original", "")
    
    primary_color = self._hex_to_rgb(theme_colors["primary"])
    secondary_color = self._hex_to_rgb(theme_colors["text_secondary"])
    
    # 绘制价格
    draw.text((16, y_offset + 10), value, fill=primary_color, font=self.fonts["title"])
    
    # 绘制原价（如果有）
    if original:
        draw.text((16, y_offset + 35), original, fill=secondary_color, font=self.fonts["medium"])
    
    return y_offset + height

def _render_cta(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
               y_offset: int) -> int:
    """渲染行动按钮"""
    height = 60
    props = section.get("props", {})
    buttons = props.get("buttons", ["联系卖家", "立即下单"])
    
    primary_color = self._hex_to_rgb(theme_colors["primary"])
    secondary_color = self._hex_to_rgb(theme_colors["secondary"])
    text_color = self._hex_to_rgb(theme_colors["text"])
    
    # 绘制按钮
    button_width = (self.width - 48) // len(buttons)
    for i, button_text in enumerate(buttons):
        x = 16 + i * (button_width + 8)
        
        # 选择按钮颜色
        if i == 0:  # 主要按钮
            bg_color = primary_color
            btn_text_color = self._hex_to_rgb(theme_colors["background"])
        else:  # 次要按钮
            bg_color = secondary_color
            btn_text_color = text_color
        
        # 绘制按钮背景
        self._draw_rounded_rect(draw, (x, y_offset + 10, x + button_width, y_offset + height - 10), 
                               8, fill=bg_color)
        
        # 绘制按钮文字
        text_bbox = draw.textbbox((0, 0), button_text, font=self.fonts["medium"])
        text_width = text_bbox[2] - text_bbox[0]
        text_x = x + (button_width - text_width) // 2
        draw.text((text_x, y_offset + 25), button_text, fill=btn_text_color, font=self.fonts["medium"])
    
    return y_offset + height

def _render_form(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                y_offset: int) -> int:
    """渲染表单"""
    props = section.get("props", {})
    fields = props.get("fields", ["title", "price", "description", "images"])
    
    text_color = self._hex_to_rgb(theme_colors["text"])
    bg_color = self._hex_to_rgb(theme_colors["surface"])
    border_color = self._hex_to_rgb(theme_colors["border"])
    
    field_height = 50
    total_height = len(fields) * field_height
    
    for i, field in enumerate(fields):
        y = y_offset + i * field_height
        
        # 绘制输入框
        self._draw_rounded_rect(draw, (16, y, self.width - 16, y + field_height - 2), 
                               4, fill=bg_color, outline=border_color)
        
        # 绘制字段标签
        field_labels = {
            "title": "商品标题",
            "price": "价格",
            "description": "商品描述",
            "images": "商品图片"
        }
        label = field_labels.get(field, field)
        draw.text((24, y + 15), label, fill=text_color, font=self.fonts["medium"])
    
    return y_offset + total_height

def _render_user_info(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                     y_offset: int) -> int:
    """渲染用户信息"""
    height = 80
    props = section.get("props", {})
    name = props.get("name", "用户名")
    level = props.get("level", "VIP")
    
    text_color = self._hex_to_rgb(theme_colors["text"])
    primary_color = self._hex_to_rgb(theme_colors["primary"])
    
    # 绘制头像
    avatar_size = 50
    avatar_bg = self._hex_to_rgb(theme_colors["border"])
    self._draw_rounded_rect(draw, (16, y_offset + 15, 16 + avatar_size, y_offset + 15 + avatar_size), 
                           avatar_size // 2, fill=avatar_bg)
    
    # 绘制用户名
    draw.text((80, y_offset + 20), name, fill=text_color, font=self.fonts["large"])
    
    # 绘制等级
    draw.text((80, y_offset + 45), level, fill=primary_color, font=self.fonts["medium"])
    
    return y_offset + height

def _render_menu_list(self, draw: ImageDraw.Draw, section: Dict, theme_colors: Dict, 
                     y_offset: int) -> int:
    """渲染菜单列表"""
    props = section.get("props", {})
    items = props.get("items", ["我的订单", "我的收藏", "设置", "帮助"])
    
    text_color = self._hex_to_rgb(theme_colors["text"])
    bg_color = self._hex_to_rgb(theme_colors["surface"])
    
    item_height = 50
    total_height = len(items) * item_height
    
    for i, item in enumerate(items):
        y = y_offset + i * item_height
        
        # 绘制菜单项背景
        self._draw_rounded_rect(draw, (16, y, self.width - 16, y + item_height - 2), 
                               4, fill=bg_color)
        
        # 绘制菜单项文字
        draw.text((32, y + 15), item, fill=text_color, font=self.fonts["medium"])
        
        # 绘制箭头
        draw.text((self.width - 32, y + 15), ">", fill=text_color, font=self.fonts["medium"])
    
    return y_offset + total_height

def render(self, dsl: Dict[str, Any]) -> Image.Image:
    """渲染UI-DSL为图片"""
    # 创建画布
    image = Image.new('RGB', (self.width, self.height), 
                     self._hex_to_rgb(self.tokens["themes"]["obsidian-gold"]["colors"]["background"]))
    draw = ImageDraw.Draw(image)
    
    # 获取页面信息
    page = dsl.get("page", {})
    theme = page.get("theme", "obsidian-gold")
    theme_colors = self._get_theme_colors(theme)
    
    # 设置背景色
    bg_color = self._hex_to_rgb(theme_colors["background"])
    draw.rectangle((0, 0, self.width, self.height), fill=bg_color)
    
    # 渲染各个组件
    y_offset = 0
    sections = page.get("sections", [])
    
    for section in sections:
        section_type = section.get("type")
        if section_type in self.component_renderers:
            y_offset = self.component_renderers[section_type](
                draw, section, theme_colors, y_offset
            )
        else:
            logger.warning(f"未知组件类型: {section_type}")
    
    return image

class RenderOptimizer:
    """渲染优化器"""
    
    def __init__(self):
        self.cache = {}
        self.optimization_config = {
            "use_cache": True,
            "batch_render": True,
            "lazy_loading": True
        }
    
    def optimize_render(self, dsl: Dict) -> Image.Image:
        """优化渲染流程"""
        # 检查缓存
        dsl_hash = hash(json.dumps(dsl, sort_keys=True))
        if self.optimization_config["use_cache"] and dsl_hash in self.cache:
            return self.cache[dsl_hash]
        
        # 执行渲染
        renderer = UIRenderer()
        image = renderer.render(dsl)
        
        # 缓存结果
        if self.optimization_config["use_cache"]:
            self.cache[dsl_hash] = image
        
        return image

def main():
    """主函数"""
    parser = argparse.ArgumentParser(description="UI-DSL图片渲染")
    parser.add_argument("--dsl", type=str, required=True,
                       help="UI-DSL文件路径")
    parser.add_argument("--output", type=str, required=True,
                       help="输出图片路径")
    parser.add_argument("--config", type=str, default="config/model_config.yaml",
                       help="配置文件路径")
    parser.add_argument("--tokens", type=str, default="config/ui_tokens.json",
                       help="UI令牌文件路径")
    parser.add_argument("--dpi", type=int, default=72,
                       help="图片DPI")
    parser.add_argument("--width", type=int, default=375,
                       help="图片宽度")
    parser.add_argument("--height", type=int, default=812,
                       help="图片高度")
    
    args = parser.parse_args()
    
    # 加载DSL
    with open(args.dsl, 'r', encoding='utf-8') as f:
        dsl = json.load(f)
    
    # 创建渲染器
    renderer = UIRenderer(args.config, args.tokens)
    
    # 设置自定义尺寸
    if args.width != 375 or args.height != 812:
        renderer.width = args.width
        renderer.height = args.height
    
    # 渲染图片
    image = renderer.render(dsl)
    
    # 保存图片
    output_path = Path(args.output)
    output_path.parent.mkdir(parents=True, exist_ok=True)
    image.save(output_path, "PNG", dpi=(args.dpi, args.dpi))
    
    logger.info(f"UI图片已保存到: {output_path}")

# 图片质量配置
image_quality_config = {
    "dpi": 72,              # 标准DPI
    "high_dpi": 144,        # 高DPI（Retina）
    "format": "PNG",        # 图片格式
    "compression": 0,       # PNG压缩级别（0-9）
    "optimize": True        # 是否优化
}

def save_high_quality_image(image: Image.Image, path: str, dpi: int = 144):
    """保存高质量图片"""
    image.save(
        path, 
        "PNG", 
        dpi=(dpi, dpi),
        optimize=True,
        compress_level=0
    )

class RenderPerformanceOptimizer:
    """渲染性能优化器"""
    
    def __init__(self):
        self.optimization_techniques = {
            "preload_fonts": True,
            "cache_colors": True,
            "batch_operations": True,
            "lazy_evaluation": True
        }
    
    def optimize_renderer(self, renderer: UIRenderer):
        """优化渲染器性能"""
        # 预加载字体
        if self.optimization_techniques["preload_fonts"]:
            self._preload_fonts(renderer)
        
        # 缓存颜色转换
        if self.optimization_techniques["cache_colors"]:
            self._cache_color_conversions(renderer)
    
    def _preload_fonts(self, renderer: UIRenderer):
        """预加载字体"""
        # 预加载所有字体大小
        for size in [12, 16, 20, 24]:
            try:
                font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", size)
                renderer.fonts[f"size_{size}"] = font
            except:
                pass
    
    def _cache_color_conversions(self, renderer: UIRenderer):
        """缓存颜色转换"""
        renderer.color_cache = {}
        for theme_name, theme_config in renderer.tokens["themes"].items():
            renderer.color_cache[theme_name] = {}
            for color_name, color_value in theme_config["colors"].items():
                renderer.color_cache[theme_name][color_name] = renderer._hex_to_rgb(color_value)

class RenderTester:
    """渲染测试器"""
    
    def __init__(self):
        self.test_cases = self._load_test_cases()
        self.renderer = UIRenderer()
    
    def _load_test_cases(self) -> List[Dict]:
        """加载测试用例"""
        return [
            {
                "name": "首页渲染测试",
                "dsl": {
                    "page": {
                        "name": "home_page",
                        "theme": "obsidian-gold",
                        "layout": {"grid": 12, "gutter": 16, "padding": 16, "bg": "#0E0E0E"},
                        "sections": [
                            {"type": "topbar", "props": {"logo": "品牌", "actions": ["search", "bell"]}},
                            {"type": "card-list", "props": {"columns": 2, "card": {"type": "product-card"}}}
                        ]
                    }
                }
            },
            {
                "name": "详情页渲染测试",
                "dsl": {
                    "page": {
                        "name": "detail_page",
                        "theme": "silver-white",
                        "layout": {"grid": 12, "gutter": 16, "padding": 16, "bg": "#FFFFFF"},
                        "sections": [
                            {"type": "topbar", "props": {"title": "商品详情", "actions": ["share"]}},
                            {"type": "carousel", "props": {"images": 3}},
                            {"type": "price", "props": {"value": "￥1999", "original": "￥2999"}}
                        ]
                    }
                }
            }
        ]
    
    def run_all_tests(self) -> Dict[str, bool]:
        """运行所有测试"""
        results = {}
        
        for test_case in self.test_cases:
            try:
                image = self.renderer.render(test_case["dsl"])
                results[test_case["name"]] = True
                logger.info(f"测试通过: {test_case['name']}")
            except Exception as e:
                results[test_case["name"]] = False
                logger.error(f"测试失败: {test_case['name']}, 错误: {e}")
        
        return results

def validate_render_quality(image: Image.Image, expected_size: Tuple[int, int]) -> Dict[str, bool]:
    """验证渲染质量"""
    validation_results = {
        "correct_size": False,
        "has_content": False,
        "color_distribution": False,
        "text_readability": False
    }
    
    # 检查尺寸
    if image.size == expected_size:
        validation_results["correct_size"] = True
    
    # 检查是否有内容（不是纯色）
    pixels = list(image.getdata())
    unique_colors = len(set(pixels))
    if unique_colors > 10:  # 有足够的颜色变化
        validation_results["has_content"] = True
    
    # 检查颜色分布
    color_histogram = image.histogram()
    if max(color_histogram) < len(color_histogram) * 0.8:  # 没有单一颜色占主导
        validation_results["color_distribution"] = True
    
    return validation_results

# 渲染性能优化建议
performance_recommendations = {
    "memory": {
        "use_pillow_optimization": True,
        "limit_image_size": True,
        "use_appropriate_dpi": True
    },
    "speed": {
        "cache_fonts": True,
        "cache_colors": True,
        "batch_operations": True
    },
    "quality": {
        "use_high_dpi": True,
        "optimize_compression": True,
        "validate_output": True
    }
}

# 渲染质量保证策略
quality_assurance = {
    "testing": {
        "unit_tests": True,
        "integration_tests": True,
        "visual_tests": True
    },
    "validation": {
        "size_validation": True,
        "color_validation": True,
        "content_validation": True
    },
    "monitoring": {
        "render_time_tracking": True,
        "error_logging": True,
        "performance_monitoring": True
    }
}