lt
454 lines
18 KiB
Python
454 lines
18 KiB
Python
#!/usr/bin/env python3
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"""
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文章配图自动生成器
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基于PIL，根据文章标题、内容自动生成适合各平台的配图
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"""
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import os
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import sys
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import json
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import datetime
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from pathlib import Path
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from typing import Dict, List, Tuple, Optional
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from dataclasses import dataclass
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import yaml
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from PIL import Image, ImageDraw, ImageFont
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import random
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# 确保项目根目录在路径中
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PROJECT_ROOT = Path('/root/.openclaw/workspaces/yzr-yxl/projects/yu-zhi-ran')
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sys.path.insert(0, str(PROJECT_ROOT))
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# 加载配置
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CONFIG_DIR = PROJECT_ROOT / "config"
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with open(CONFIG_DIR / "wecom_config.yaml", 'r', encoding='utf-8') as f:
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wecom_config = yaml.safe_load(f)
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@dataclass
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class ImageSpec:
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"""图片规格"""
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platform: str
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width: int
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height: int
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format: str = "PNG"
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quality: int = 85
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bg_color: Tuple[int, int, int] = (255, 255, 255) # 白色背景
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accent_color: Tuple[int, int, int] = (76, 175, 80) # 品牌绿色 #4CAF50
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text_color: Tuple[int, int, int] = (51, 51, 51) # 深灰色
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class ImageGenerator:
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"""图片生成器"""
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def __init__(self, output_base: Path = None):
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self.output_base = output_base or (PROJECT_ROOT / "automation" / "images" / "generated")
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self.today = datetime.datetime.now().strftime("%Y-%m-%d")
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self.output_dir = self.output_base / self.today
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self.output_dir.mkdir(parents=True, exist_ok=True)
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# 加载平台规格
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self.platform_specs = {}
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for platform, specs in wecom_config["image_specs"].items():
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self.platform_specs[platform] = ImageSpec(
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platform=platform,
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width=specs["width"],
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height=specs["height"],
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format=specs["format"],
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quality=specs["quality"]
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)
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# 字体路径
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self.font_paths = self._find_chinese_fonts()
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def _find_chinese_fonts(self) -> List[str]:
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"""查找系统中可用的中文字体"""
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font_paths = [
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"/usr/share/fonts/truetype/wqy/wqy-microhei.ttc", # 文泉驿微米黑
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"/usr/share/fonts/truetype/arphic/uming.ttc", # 文鼎PL中等
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"/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf",
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"/System/Library/Fonts/PingFang.ttc", # macOS
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"/System/Library/Fonts/STHeiti Medium.ttc", # macOS
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"C:\\Windows\\Fonts\\msyh.ttc", # Windows
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"C:\\Windows\\Fonts\\simsun.ttc"
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]
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available = [p for p in font_paths if os.path.exists(p)]
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return available if available else [None] # 回退到默认字体
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def _get_font(self, size: int, bold: bool = False) -> ImageFont.FreeTypeFont:
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"""获取合适的中文字体"""
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for font_path in self.font_paths:
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if font_path:
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try:
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return ImageFont.truetype(font_path, size)
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except:
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continue
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return ImageFont.load_default()
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def generate_cover_image(self, title: str, subtitle: str = "", platform: str = "zhihu") -> Path:
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"""生成封面图"""
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spec = self.platform_specs.get(platform, self.platform_specs["zhihu"])
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# 创建图片
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img = Image.new('RGB', (spec.width, spec.height), color=spec.bg_color)
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draw = ImageDraw.Draw(img)
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# 添加渐变背景
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for y in range(spec.height):
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# 从顶部到中间的渐变
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ratio = y / (spec.height * 0.6)
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r = int(255 * (1 - ratio) + 230 * ratio)
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g = int(255 * (1 - ratio) + 240 * ratio)
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b = int(255 * (1 - ratio) + 250 * ratio)
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draw.line([(0, y), (spec.width, y)], fill=(r, g, b))
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# 绘制品牌标识区域（底部条纹）
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stripe_height = 20
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stripe_y = spec.height - stripe_height - 30
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draw.rectangle([0, stripe_y, spec.width, stripe_y + stripe_height], fill=spec.accent_color)
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draw.text((20, stripe_y + 5), "宇之然", fill=(255, 255, 255), font=self._get_font(14))
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# 标题排版
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title_font = self._get_font(int(spec.height * 0.12), bold=True)
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subtitle_font = self._get_font(int(spec.height * 0.06))
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# 自动换行处理
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max_width = spec.width * 0.9
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title_lines = self._wrap_text(title, title_font, max_width)
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subtitle_lines = self._wrap_text(subtitle, subtitle_font, max_width) if subtitle else []
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# 计算总高度
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line_spacing = 1.2
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title_height = len(title_lines) * title_font.size * line_spacing
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subtitle_height = len(subtitle_lines) * subtitle_font.size * line_spacing
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total_text_height = title_height + subtitle_height + 20 # 间距
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# 居中绘制
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start_y = (spec.height - total_text_height) // 2
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# 绘制标题
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for i, line in enumerate(title_lines):
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y = start_y + i * (title_font.size * line_spacing)
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self._draw_centered_text(draw, line, y, spec.width, title_font, spec.text_color)
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# 绘制副标题
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if subtitle_lines:
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subtitle_start_y = start_y + title_height + 10
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for i, line in enumerate(subtitle_lines):
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y = subtitle_start_y + i * (subtitle_font.size * line_spacing)
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self._draw_centered_text(draw, line, y, spec.width, subtitle_font, (102, 102, 102))
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# 保存图片
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filename = f"cover_{platform}.{spec.format.lower()}"
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output_path = self.output_dir / filename
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img.save(output_path, quality=spec.quality)
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return output_path
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def generate_chart_image(self, chart_type: str, data: Dict, title: str, platform: str = "zhihu") -> Path:
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"""生成数据图表"""
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spec = self.platform_specs.get(platform, self.platform_specs["zhihu"])
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img = Image.new('RGB', (spec.width, spec.height), color=(255, 255, 255))
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draw = ImageDraw.Draw(img)
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# 绘制标题
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title_font = self._get_font(36, bold=True)
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draw.text((50, 30), title, fill=spec.text_color, font=title_font)
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# 根据图表类型绘制
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if chart_type == "bar":
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self._draw_bar_chart(draw, data, spec)
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elif chart_type == "pie":
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self._draw_pie_chart(draw, data, spec)
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elif chart_type == "line":
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self._draw_line_chart(draw, data, spec)
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else:
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# 默认显示文本
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text_font = self._get_font(24)
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draw.text((50, 150), f"图表类型: {chart_type}", fill=spec.text_color, font=text_font)
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draw.text((50, 200), f"数据: {json.dumps(data, ensure_ascii=False)}", fill=spec.text_color, font=text_font)
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# 水印
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watermark_font = self._get_font(14)
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draw.text((spec.width - 150, spec.height - 30), "数据来源: 宇之然", fill=(150, 150, 150), font=watermark_font)
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filename = f"data_chart_{platform}.png"
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output_path = self.output_dir / filename
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img.save(output_path, quality=spec.quality)
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return output_path
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def _draw_bar_chart(self, draw: ImageDraw.Draw, data: Dict, spec: ImageSpec):
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"""绘制柱状图"""
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# 数据格式: {"label1": value1, "label2": value2, ...}
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labels = list(data.keys())
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values = list(data.values())
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max_value = max(values) if values else 1
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chart_area = {
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"left": 100,
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"top": 120,
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"right": spec.width - 50,
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"bottom": spec.height - 100
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}
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chart_width = chart_area["right"] - chart_area["left"]
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chart_height = chart_area["bottom"] - chart_area["top"]
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bar_width = chart_width // (len(values) * 2)
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gap = bar_width
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# 绘制坐标轴
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draw.line([
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(chart_area["left"], chart_area["top"]),
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(chart_area["left"], chart_area["bottom"])
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], fill=(0, 0, 0), width=2)
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draw.line([
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(chart_area["left"], chart_area["bottom"]),
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(chart_area["right"], chart_area["bottom"])
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], fill=(0, 0, 0), width=2)
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# 绘制柱子
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for i, (label, value) in enumerate(zip(labels, values)):
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x = chart_area["left"] + i * (bar_width + gap) + gap // 2
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bar_height = (value / max_value) * chart_height
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y_bottom = chart_area["bottom"]
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y_top = chart_area["bottom"] - bar_height
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# 柱子（渐变色）
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for y in range(int(y_top), int(y_bottom)):
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ratio = (y - y_top) / bar_height if bar_height > 0 else 0
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r = int(76 + (100-76) * ratio)
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g = int(175 + (150-175) * ratio)
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b = int(80 + (120-80) * ratio)
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draw.line([(x, y), (x + bar_width, y)], fill=(r, g, b))
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# 标签
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label_font = self._get_font(18)
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self._draw_centered_text(draw, label, y_bottom + 10, x + bar_width // 2, label_font, (80, 80, 80))
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# 数值
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value_font = self._get_font(20, bold=True)
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self._draw_centered_text(draw, f"{value}", y_top - 10, x + bar_width // 2, value_font, spec.accent_color)
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def _draw_pie_chart(self, draw: ImageDraw.Draw, data: Dict, spec: ImageSpec):
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"""绘制饼图"""
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# 简单实现：绘制圆形扇形
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center_x, center_y = spec.width // 2, spec.height // 2
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radius = min(spec.width, spec.height) // 3
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total = sum(data.values()) if data else 1
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angle_start = 0
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# 颜色调色板
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colors = [
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(76, 175, 80), (33, 150, 83), (139, 195, 74),
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(255, 193, 7), (255, 152, 0), (244, 67, 54)
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]
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for i, (label, value) in enumerate(data.items()):
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angle_extent = (value / total) * 360
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color = colors[i % len(colors)]
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# 绘制扇形
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draw.arc(
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[center_x - radius, center_y - radius, center_x + radius, center_y + radius],
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angle_start, angle_start + angle_extent,
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fill=color, width=radius * 2
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)
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angle_start += angle_extent
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# 画中心白圆形成饼图效果
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inner_radius = radius * 0.5
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draw.ellipse(
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[center_x - inner_radius, center_y - inner_radius, center_x + inner_radius, center_y + inner_radius],
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fill=(255, 255, 255)
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)
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# 绘制图例
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legend_y = spec.height - 80
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legend_x = 100
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for i, (label, value) in enumerate(data.items()):
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color = colors[i % len(colors)]
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# 色块
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draw.rectangle([legend_x, legend_y + i*25, legend_x+20, legend_y+20+i*25], fill=color)
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# 标签
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label_font = self._get_font(16)
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draw.text((legend_x+30, legend_y+i*25), f"{label}: {value}", fill=(60, 60, 60), font=label_font)
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def _draw_line_chart(self, draw: ImageDraw.Draw, data: Dict, spec: ImageSpec):
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"""绘制折线图"""
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# 简化版：显示文本描述
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title_font = self._get_font(24)
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draw.text((50, 100), "折线图 (数据趋势)", fill=spec.text_color, font=title_font)
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items = list(data.items())
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if not items:
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draw.text((50, 150), "无可用数据", fill=(100, 100, 100), font=self._get_font(18))
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return
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# 列出数据
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data_font = self._get_font(16)
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y = 200
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for label, value in items[:10]: # 限制显示数量
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draw.text((50, y), f"{label}: {value}", fill=(80, 80, 80), font=data_font)
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y += 25
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def generate_concept_image(self, title: str, items: List[str], platform: str = "zhihu") -> Path:
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"""生成概念示意图（用于行动清单等）"""
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spec = self.platform_specs.get(platform, self.platform_specs["zhihu"])
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img = Image.new('RGB', (spec.width, spec.height), color=(245, 245, 245))
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draw = ImageDraw.Draw(img)
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# 标题
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title_font = self._get_font(42, bold=True)
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self._draw_centered_text(draw, title, 60, spec.width, title_font, spec.text_color)
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# 绘制项目列表（带复选框样式）
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item_font = self._get_font(28)
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start_y = 150
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for i, item in enumerate(items[:8]): # 限制8个
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y = start_y + i * 50
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# 复选框
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box_size = 30
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box_x = (spec.width - 400) // 2
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draw.rectangle([box_x, y, box_x + box_size, y + box_size], outline=spec.accent_color, width=3)
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# 勾
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check_font = self._get_font(24)
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draw.text((box_x + 7, y + 2), "✓", fill=spec.accent_color, font=check_font)
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# 文字
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draw.text((box_x + box_size + 20, y + 5), item[:30], fill=(60, 60, 60), font=item_font)
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filename = f"action_checklist_{platform}.png"
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output_path = self.output_dir / filename
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img.save(output_path, quality=spec.quality)
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return output_path
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def generate_equipment_list_image(self, items: List[Dict[str, str]], platform: str = "zhihu") -> Path:
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"""生成装备清单图"""
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spec = self.platform_specs.get(platform, self.platform_specs["zhihu"])
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img = Image.new('RGB', (spec.width, spec.height), color=(255, 255, 255))
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draw = ImageDraw.Draw(img)
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# 标题
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title = "装备清单"
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title_font = self._get_font(38, bold=True)
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draw.text((50, 40), title, fill=spec.text_color, font=title_font)
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# 列头
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headers = ["名称", "用途", "预算"]
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header_font = self._get_font(24, bold=True)
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col_width = spec.width // len(headers)
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for i, header in enumerate(headers):
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x = i * col_width + 20
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draw.text((x, 100), header, fill=(100, 100, 100), font=header_font)
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# 分隔线
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draw.line([(50, 130), (spec.width-50, 130)], fill=(200, 200, 200), width=2)
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# 绘制条目
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item_font = self._get_font(20)
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row_height = 40
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y = 150
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for item in items[:10]: # 最多10行
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name = item.get("name", "")[:12]
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purpose = item.get("purpose", "")[:10]
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budget = item.get("budget", "")
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draw.text((70, y), name, fill=(50, 50, 50), font=item_font)
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draw.text((col_width + 70, y), purpose, fill=(50, 50, 50), font=item_font)
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draw.text((2*col_width + 70, y), budget, fill=(50, 50, 50), font=item_font)
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y += row_height
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# 底部总预算
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total_budget = sum([int(item.get("budget", "0").replace("元", "")) for item in items if item.get("budget", "").replace("元", "").isdigit()])
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total_font = self._get_font(22, bold=True)
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draw.text((50, spec.height - 50), f"总预算: {total_budget}元", fill=spec.accent_color, font=total_font)
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filename = f"equipment_{platform}.png"
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output_path = self.output_dir / filename
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img.save(output_path, quality=spec.quality)
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return output_path
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def _wrap_text(self, text: str, font: ImageFont.FreeTypeFont, max_width: int) -> List[str]:
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"""文本自动换行"""
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words = list(text)
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lines = []
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current_line = ""
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for char in words:
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test_line = current_line + char
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bbox = font.getbbox(test_line)
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width = bbox[2] - bbox[0]
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if width <= max_width:
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current_line = test_line
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else:
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if current_line:
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lines.append(current_line)
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current_line = char
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if current_line:
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lines.append(current_line)
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return lines if lines else [text]
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def _draw_centered_text(self, draw: ImageDraw.Draw, text: str, y: int, center_x: int, font: ImageFont.FreeTypeFont, color: Tuple[int, int, int]):
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"""绘制居中文本"""
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bbox = font.getbbox(text)
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text_width = bbox[2] - bbox[0]
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x = center_x - text_width // 2
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draw.text((x, y), text, fill=color, font=font)
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def generate_all_placeholders(self, article_title: str, platform: str = "zhihu") -> Dict[str, Path]:
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"""生成所有占位图片"""
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files = {}
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# 1. 封面图
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files["cover"] = self.generate_cover_image(article_title, "宇之然 · 可持续生活指南", platform)
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# 2. 数据图表示例
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files["data_chart"] = self.generate_chart_image("bar", {"选项A": 45, "选项B": 32, "选项C": 23}, "数据对比", platform)
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# 3. 概念图（行动清单）
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files["action_checklist"] = self.generate_concept_image("立即行动清单", [
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"第一步：记录现状，识别改进空间",
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"第二步：尝试最小可行改变",
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"第三步：评估效果，决定是否继续",
|
|
"第四步：建立习惯，持续改进"
|
|
], platform)
|
|
|
|
# 4. 装备清单图
|
|
files["equipment"] = self.generate_equipment_list_image([
|
|
{"name": "智能插座", "purpose": "定时控制", "budget": "50元"},
|
|
{"name": "土壤传感器", "purpose": "湿度监测", "budget": "80元"},
|
|
{"name": "自动灌溉", "purpose": "浇水", "budget": "120元"},
|
|
{"name": "LED补光灯", "purpose": "光照", "budget": "200元"}
|
|
], platform)
|
|
|
|
return files
|
|
|
|
def main():
|
|
"""测试主函数"""
|
|
generator = ImageGenerator()
|
|
|
|
# 测试生成图片
|
|
print(f"开始生成图片到: {generator.output_dir}")
|
|
|
|
# 生成所有类型的占位图
|
|
files = generator.generate_all_placeholders("上海阳台种菜一年：我收获的不仅是蔬菜", "zhihu")
|
|
|
|
print("\n生成的文件:")
|
|
for name, path in files.items():
|
|
print(f" - {name}: {path.name} ({path.stat().st_size // 1024}KB)")
|
|
|
|
print(f"\n✅ 图片生成完成，共 {len(files)} 张")
|
|
|
|
if __name__ == "__main__":
|
|
main() |