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Enhance: Add backup fonts support for dynamic generator #15

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Enhance: Add backup fonts support for dynamic generator #15

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27 changes: 24 additions & 3 deletions starbot/painter/DynamicPicGenerator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

from PIL import Image, ImageDraw, ImageFont
from PIL.Image import Resampling
from fontTools.ttLib import TTFont
from emoji import is_emoji

from .PicGenerator import Color, PicGenerator
Expand Down Expand Up @@ -292,7 +293,10 @@ async def __get_content_line_imgs(cls, modules: List[Dict[str, Any]], width: int
img = Image.new("RGBA", (width, line_height))
draw = ImageDraw.Draw(img)
normal_font = config.get("PAINTER_NORMAL_FONT")
font = ImageFont.truetype(f"{cls.__resource_base_path}/resource/{normal_font}", 30)
if type(normal_font) == str:
normal_font = [normal_font]
draw_font_list = [ImageFont.truetype(f"{cls.__resource_base_path}/resource/{font}", 30) for font in normal_font]
judge_font_list = [TTFont(f"{cls.__resource_base_path}/resource/{font}", fontNumber=0) for font in normal_font]
emoji_font = ImageFont.truetype(f"{cls.__resource_base_path}/resource/emoji.ttf", 109)
x, y = 0, 0

Expand Down Expand Up @@ -337,6 +341,22 @@ def draw_pic(pic: Image, size: Optional[Tuple[int, int]] = None):
pic.close()
x = int(x + size[0])

def select_font_for_char(c: str) -> bool:
"""
选择字体

Args:
c: 字符

Returns:
包含该字符的字体或列表中最后一个字体
"""
for i in range(len(judge_font_list)):
for table in judge_font_list[i]['cmap'].tables:
if ord(c) in table.cmap.keys():
return draw_font_list[i]
return draw_font_list[-1]

def draw_char(c: str, color: Union[Color, Tuple[int, int, int]] = Color.BLACK):
"""
绘制字符
Expand All @@ -360,9 +380,10 @@ def draw_char(c: str, color: Union[Color, Tuple[int, int, int]] = Color.BLACK):
emoji_img = emoji_img.resize((30, 30), Resampling.LANCZOS)
draw_pic(emoji_img)
else:
text_width = draw.textlength(c, font)
draw_font = select_font_for_char(c)
text_width = draw.textlength(c, draw_font)
auto_next_line(text_width)
draw.text((x, y), c, color, font)
draw.text((x, y), c, color, draw_font)
x = int(x + text_width)

for module in modules:
Expand Down