基于固定宽度的字符串高度测量

from PIL import Image, ImageDraw, ImageFont

def measure_text_height(text, font_path, font_size, max_width):
    font = ImageFont.truetype(font_path, font_size)
    lines = []
    words = text.split(' ')
    
    for word in words:
        test_line = ' '.join(lines + [word])
        test_width, _ = font.getsize(test_line)
        if test_width <= max_width:
            lines.append(word)
        else:
            lines.append('\n')
            lines.append(word)
    
    test_string = ''.join(lines)
    width, height = font.getsize_multiline(test_string)
    return height

# 示例使用
text = "这是一个需要测量高度的示例文本。"
font_path = "path/to/your/font.ttf"  # 替换为实际字体文件路径
font_size = 16
max_width = 200

height = measure_text_height(text, font_path, font_size, max_width)
print(f"文本高度: {height} 像素")