80 lines
2.7 KiB
Python
80 lines
2.7 KiB
Python
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import sys
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import os
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from PIL import Image
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import cairosvg
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import io
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threshold = 128
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def svg_to_png_bytes(svg_path, width, height):
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with open(svg_path, 'rb') as f:
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svg_data = f.read()
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png_bytes = cairosvg.svg2png(bytestring=svg_data, output_width=width, output_height=height)
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return png_bytes
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def load_image(path, width, height):
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ext = os.path.splitext(path)[1].lower()
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if ext == '.svg':
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png_bytes = svg_to_png_bytes(path, width, height)
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img = Image.open(io.BytesIO(png_bytes))
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else:
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img = Image.open(path)
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img = img.convert('RGBA')
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img = img.resize((width, height), Image.LANCZOS)
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# Flatten alpha: paste on white background
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background = Image.new('RGBA', img.size, (255, 255, 255, 255))
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background.paste(img, mask=img.split()[3])
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img = background
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# Rotate 90 degrees counterclockwise
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img = img.rotate(90, expand=True)
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return img
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def image_to_c_array(img, array_name):
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# Convert to grayscale, then threshold to get white=1, black=0
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# Convert to grayscale
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img = img.convert('L')
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width, height = img.size
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pixels = list(img.getdata())
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packed = []
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for y in range(height):
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for x in range(0, width, 8):
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byte = 0
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for b in range(8):
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if x + b < width:
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v = pixels[y * width + x + b]
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# 1 for white, 0 for black
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bit = 1 if v >= threshold else 0
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byte |= (bit << (7 - b))
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packed.append(byte)
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# Format as C array
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c = f'#pragma once\n#include <cstdint>\n\n'
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c += f'// size: {width}x{height}\n'
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c += f'static const uint8_t {array_name}[] = {{\n '
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for i, v in enumerate(packed):
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c += f'0x{v:02X}, '
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if (i + 1) % 16 == 0:
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c += '\n '
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c = c.rstrip(', \n') + '\n};\n'
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return c
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def main():
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if len(sys.argv) < 5:
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print('Usage: python convert_image.py input.png output_name width height')
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sys.exit(1)
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input_path, output_name, width, height = sys.argv[1:5]
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array_name = output_name.capitalize() + 'Icon'
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width, height = int(width), int(height)
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img = load_image(input_path, width, height)
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c_array = image_to_c_array(img, array_name)
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# Always save to src/components/icons/[output_name].h relative to project root
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project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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output_dir = os.path.join(project_root, 'src', 'components', 'icons')
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os.makedirs(output_dir, exist_ok=True)
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output_path = os.path.join(output_dir, f'{output_name}.h')
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with open(output_path, 'w') as f:
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f.write(c_array)
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print(f'Wrote {output_path}')
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if __name__ == '__main__':
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main()
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