mirror of
https://github.com/Xtao-Labs/iShotaBot.git
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311 lines
12 KiB
Python
311 lines
12 KiB
Python
from io import BytesIO
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from os import sep
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from typing import Tuple, Union, Literal, Optional
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from pathlib import Path
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from PIL import Image, ImageDraw, ImageFont
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class ImageUtil:
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"""
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:说明: `ImageUtil`
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> 图片处理工具类
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> Author: HibiKier
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"""
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def __init__(
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self,
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width: int,
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height: int,
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paste_image_width: int = 0,
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paste_image_height: int = 0,
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color: Union[str, Tuple[int, int, int], Tuple[int, int, int, int]] = None,
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image_mode: Literal[
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"CMYK", "HSV", "LAB", "RGB", "RGBA", "RGBX", "YCbCr"
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] = "RGBA",
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font_size: int = 10,
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background: Union[Optional[str], BytesIO, Path] = None,
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font: str = "sarasa-mono-sc-semibold.ttf",
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ratio: float = 1,
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is_alpha: bool = False,
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plain_text: Optional[str] = None,
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font_color: Optional[Tuple[int, int, int]] = None,
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) -> None:
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"""
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:说明: `__init__`
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> 创建图片处理对象
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:参数:
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* `width: int`: 图片宽度
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* `height: int`: 图片高度
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:可选参数:
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* `paste_image_width: int = 0`: 当图片做为背景图时，设置贴图的宽度，用于贴图自动换行
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* `paste_image_height: int = 0`: 当图片做为背景图时，设置贴图的高度，用于贴图自动换行
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* `color: Union[str, Tuple[int, int, int], Tuple[int, int, int, int]] = None`: 生成图片的颜色
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* `image_mode: Literal["CMYK", "HSV", "LAB", "RGB", "RGBA", "RGBX", "YCbCr"] = "RGBA"`: 图片类型
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* `font_size: int = 10`: 字体大小
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* `background: Union[Optional[str], BytesIO, Path] = None`: 背景图片路径
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* `font: str = "sarasa-mono-sc-semibold.ttf"`: 字体路径
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* `ratio: float = 1`: 图片缩放比例
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* `is_alpha: bool = False`: 是否使用透明度
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* `plain_text: Optional[str] = None`: 纯文本内容
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* `font_color: Optional[Tuple[int, int, int]] = None`: 字体颜色
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:错误:
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- `ValueError`: image_mode 不在范围内
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"""
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self.width = width
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self.height = height
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self.paste_image_width = paste_image_width
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self.paste_image_height = paste_image_height
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self.current_width = 0
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self.current_height = 0
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self.font = ImageFont.truetype(f"resources{sep}font{sep}{font}", font_size)
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if image_mode not in ["CMYK", "HSV", "LAB", "RGB", "RGBA", "RGBX", "YCbCr"]:
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raise ValueError(f"image_mode: {image_mode}错误")
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if not color:
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color = (255, 255, 255)
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if not background:
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if plain_text:
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self.width = (
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self.width
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if self.width > self.font.getsize(plain_text)[0]
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else self.font.getsize(plain_text)[1]
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)
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self.height = (
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self.height
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if self.height > self.font.getsize(plain_text)[1]
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else self.font.getsize(plain_text)[1]
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)
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self.mark_image = Image.new(image_mode, (self.width, self.height), color)
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self.mark_image.convert(image_mode)
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else:
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if not width and not height:
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self.mark_image = Image.open(background)
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width, height = self.mark_image.size
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if ratio and ratio > 0 and ratio != 1:
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self.width = int(ratio * width)
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self.height = int(ratio * height)
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self.mark_image = self.mark_image.resize(
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(self.width, self.height), Image.ANTIALIAS
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)
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else:
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self.width = width
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self.height = height
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else:
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self.mark_image = Image.open(background).resize(
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(self.width, self.height), Image.Resampling.LANCZOS
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)
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if is_alpha:
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array = self.mark_image.load()
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for i in range(width):
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for j in range(height):
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pos = array[i, j] # type: ignore
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is_edit = sum([1 for x in pos[0:3] if x > 240]) == 3
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if is_edit:
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array[i, j] = (255, 255, 255, 0) # type: ignore
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self.draw = ImageDraw.Draw(self.mark_image)
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self.size = self.width, self.height
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if plain_text:
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fill = font_color if font_color else (0, 0, 0)
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self.text((0, 0), plain_text, fill)
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def text(
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self,
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pos: Tuple[int, int],
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text: str,
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fill: Tuple[int, int, int] = (0, 0, 0),
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center_type: Literal["center", "by_height", "by_width"] = None,
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):
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"""
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:说明: `text`
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> 在图片上添加文本
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:参数:
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* `pos: Tuple[int, int]`: 文本位置
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* `text: str`: 文本内容
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:可选参数:
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* `fill: Tuple[int, int, int] = (0, 0, 0)`: 文本颜色
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* `center_type: Literal["center", "by_height", "by_width"] = None`: 文本居中方式
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:错误:
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* `ValueError`: 当 `center_type` 不为 `center`, `by_height`, `by_width` 时
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"""
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if center_type:
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if center_type not in ["center", "by_height", "by_width"]:
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raise ValueError(
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"center_type must be 'center', 'by_width' or 'by_height'"
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)
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width, height = self.width, self.height
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text_widht, text_height = self.getsize(text)
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if center_type == "center":
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width = int((width - text_widht) / 2)
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height = int((height - text_height) / 2)
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elif center_type == "by_width":
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width = int((width - text_widht) / 2)
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height = pos[1]
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elif center_type == "by_height":
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height = int((height - text_height) / 2)
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width = pos[0]
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pos = (width, height)
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self.draw.text(pos, text, fill=fill, font=self.font)
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def paste(
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self,
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img: Union["ImageUtil", Image.Image],
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pos: Tuple[int, int] = None,
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alpha: bool = False,
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center_type: Literal["center", "by_height", "by_width"] = None,
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):
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"""
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:说明: `paste`
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> 在图片上添加图片
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:参数:
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* `img: ImageUtil`: 图片对象
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:可选参数:
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* `pos: Tuple[int, int] = None`: 图片位置
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* `alpha: bool = False`: 是否使用透明度
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* `center_type: Literal["center", "by_height", "by_width"] = None`: 图片居中方式
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:错误:
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- `ValueError`: 当 `center_type` 不为 `center`, `by_height`, `by_width` 时
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"""
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if center_type:
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if center_type not in ["center", "by_height", "by_width"]:
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raise ValueError(
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"center_type must be 'center', 'by_width' or 'by_height'"
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)
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width, height = 0, 0
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if not pos:
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pos = (0, 0)
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if center_type == "center":
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width = int((self.width - img.width) / 2)
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height = int((self.height - img.height) / 2)
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elif center_type == "by_width":
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width = int((self.width - img.width) / 2)
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height = pos[1]
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elif center_type == "by_height":
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width = pos[0]
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height = int((self.height - img.height) / 2)
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pos = (width, height)
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if isinstance(img, ImageUtil):
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img = img.mark_image
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if self.current_width == self.width:
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self.current_width = 0
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self.current_height += self.paste_image_height
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if not pos:
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pos = (self.current_width, self.current_height)
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if alpha:
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try:
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self.mark_image.paste(img, pos, img)
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except ValueError:
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img = img.convert("RGBA")
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self.mark_image.paste(img, pos, img)
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else:
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self.mark_image.paste(img, pos)
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self.current_width += self.paste_image_width
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def getsize(self, msg: str) -> Tuple[int, int]:
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"""
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:说明: `getsize`
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> 获取文本大小
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:参数:
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* `msg: str`: 文本内容
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:返回:
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- `Tuple[int, int]`: 文本大小
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"""
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return self.font.getsize(msg)
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def point(self, pos: Tuple[int, int], fill: Tuple[int, int, int] = (0, 0, 0)):
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"""
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:说明: `point`
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> 绘制单独的像素点
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:参数:
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* `pos: Tuple[int, int]`: 像素点位置
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:可选参数:
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* `fill: Tuple[int, int, int] = (0, 0, 0)`: 像素点颜色
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"""
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self.draw.point(pos, fill=fill)
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def ellipse(
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self,
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pos: Tuple[int, int, int, int],
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fill: Optional[Tuple[int, int, int]] = None,
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outline: Optional[Tuple[int, int, int]] = None,
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width: int = 1,
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):
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"""
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:说明: `ellipse`
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> 绘制描边
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:参数:
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* `pos: Tuple[int, int, int, int]`: 坐标范围[x1, y1, x2, y2]
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:可选参数:
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* `fill: Optional[Tuple[int, int, int]] = None`: 填充颜色
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* `outline: Optional[Tuple[int, int, int]] = None`: 描边颜色
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* `width: int = 1`: 描边宽度
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"""
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self.draw.ellipse(pos, fill, outline, width)
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def save(self, path: Union[str, Path]):
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"""
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:说明: `save`
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> 保存图片
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:参数:
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* `path: Union[str, Path]`: 保存路径
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"""
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if isinstance(path, Path):
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path = path.absolute()
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self.mark_image.save(path)
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def convert(
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self,
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image_mode: Literal[
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"CMYK", "HSV", "LAB", "RGB", "RGBA", "RGBX", "YCbCr"
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] = "RGBA",
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):
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"""
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:说明: `convert`
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> 转换图片类型
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:可选参数:
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* `image_mode:Literal["CMYK", "HSV", "LAB", "RGB", "RGBA", "RGBX", "YCbCr"] = "RGBA"`: 转换后的图片类型
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"""
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self.mark_image = self.mark_image.convert(image_mode)
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def circle(self):
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"""
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:说明: `circle`
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> 转换图片为圆形
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"""
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self.convert("RGBA")
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r2 = min(self.width, self.height)
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if self.width != self.height:
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self.resize(width=r2, height=r2)
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r3 = int(r2 / 2)
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imb = Image.new("RGBA", (r3 * 2, r3 * 2), (255, 255, 255, 0))
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pim_a = self.mark_image.load() # 像素的访问对象
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pim_b = imb.load()
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r = float(r2 / 2)
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for i in range(r2):
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for j in range(r2):
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lx = abs(i - r) # 到圆心距离的横坐标
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ly = abs(j - r) # 到圆心距离的纵坐标
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length = (pow(lx, 2) + pow(ly, 2)) ** 0.5 # 三角函数 半径
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if length < r3:
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pim_b[i - (r - r3), j - (r - r3)] = pim_a[i, j] # type: ignore
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self.mark_image = imb
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def resize(self, ratio: float = 0, width: int = 0, height: int = 0):
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"""
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:说明: `resize`
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> 图片缩放
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:可选参数:
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* `ratio: float = 0`: 缩放比例
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* `width: int = 0`: 缩放后的宽度
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* `height: int = 0`: 缩放后的高度
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:异常:
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- `Exception`: 缺少参数
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"""
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if not width and not height and not ratio:
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raise Exception("缺少参数...")
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if not width and not height and ratio:
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width = int(self.width * ratio)
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height = int(self.height * ratio)
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self.mark_image = self.mark_image.resize((width, height), Image.ANTIALIAS)
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self.width, self.height = self.mark_image.size
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self.size = self.width, self.height
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self.draw = ImageDraw.Draw(self.mark_image)
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