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41 lines
1.6 KiB
Python
41 lines
1.6 KiB
Python
from typing import List
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from wand.color import Color
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from wand.image import BaseImage, Image
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from win2xcur.cursor import CursorFrame
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def apply_to_image(image: BaseImage, *, color: str, radius: float, sigma: float, xoffset: float,
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yoffset: float) -> Image:
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xoffset = round(xoffset * image.width)
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yoffset = round(yoffset * image.height)
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new_width = image.width + 3 * xoffset
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new_height = image.height + 3 * yoffset
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opacity = Image(width=new_width, height=new_height, pseudo='xc:white')
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opacity.composite(image.channel_images['opacity'], left=xoffset, top=yoffset)
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opacity.gaussian_blur(radius * image.width, sigma * image.width)
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opacity.negate()
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opacity.modulate(50)
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shadow = Image(width=new_width, height=new_height, pseudo='xc:' + color)
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shadow.composite(opacity, operator='copy_opacity')
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result = Image(width=new_width, height=new_height, pseudo='xc:transparent')
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result.composite(image)
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result.composite(shadow, operator='difference')
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trimmed = result.clone()
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trimmed.trim(color=Color('transparent'))
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result.crop(width=max(image.width, trimmed.width), height=max(image.height, trimmed.height))
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return result
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def apply_to_frames(frames: List[CursorFrame], *, color: str, radius: float,
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sigma: float, xoffset: float, yoffset: float) -> None:
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for frame in frames:
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for cursor in frame:
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cursor.image = apply_to_image(cursor.image, color=color, radius=radius,
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sigma=sigma, xoffset=xoffset, yoffset=yoffset)
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