forked from Lephenixnoir/unicode-fonts
119 lines
2.7 KiB
Python
Executable File
119 lines
2.7 KiB
Python
Executable File
#! /usr/bin/python3
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import PIL.Image
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import sys
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import os
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import re
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if len(sys.argv) != 3:
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print(f"usage: {sys.argv[0]} <FONT FOLDER> <OUTPUT IMAGE>")
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sys.exit(1)
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files = sorted(sys.argv[1] + "/" + x for x in os.listdir(sys.argv[1]))
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chars = PIL.Image.open("gen-chars.png")
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WHITE = (255, 255, 255)
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BLACK = (0, 0, 0)
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def empty_separator(width):
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img = PIL.Image.new("RGB", (width, 9), color=WHITE)
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for j in range(3, 6):
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for i in range(1, width-1):
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if not ((i + j) & 1):
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img.putpixel((i, j), BLACK)
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return img
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def char_index(c):
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o = ord(c)
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if ord('0') <= o <= ord('9'):
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return o - ord('0')
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if ord('A') <= o <= ord('F'):
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return o - ord('A') + 10
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if c == 'U':
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return 16
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if c == '+':
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return 17
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raise Exception(f"Unsupported char '{c}'")
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def char_image(c):
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index = 4 * char_index(c)
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return chars.crop((index, 0, index + 3, 5))
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def separator(start, width):
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img = PIL.Image.new("RGB", (width, 9), color=WHITE)
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for j in range(3, 6):
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for i in range(1, width//2 - 15):
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if not ((i + j) & 1):
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img.putpixel((i, j), BLACK)
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for i in range(width//2 + 15, width-1):
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if not ((i + j) & 1):
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img.putpixel((i, j), BLACK)
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x = width//2 - 11
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for c in "U+{:04X}".format(start):
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img.paste(char_image(c), (x, 2))
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x += 4
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return img
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class Block:
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def __init__(self, path):
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basename = os.path.basename(path)
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match = re.search(r'U\+([0-9A-Za-z]{4})', basename)
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self.block_start = None
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self.img = PIL.Image.open(path)
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if match is not None:
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self.block_start = int(match[1], 16)
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print('{} U+{:04X}'.format(basename, self.block_start))
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else:
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print(f'{basename} not a block')
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def header(self, width):
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if self.block_start is not None:
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return separator(self.block_start, width)
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else:
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return empty_separator(width)
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def body(self):
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return self.img
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def height(self):
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return self.img.height + 9
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def width(self):
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return self.img.width
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blocks = [ Block(file) for file in files ]
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width = max(b.width() for b in blocks)
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height = sum(b.height() for b in blocks)
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left_height = 0
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for b in blocks:
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left_height += b.height()
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if 2 * left_height >= height: break
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result = PIL.Image.new("RGB", (2 * width + 8, left_height), color=WHITE)
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x = 0
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y = 0
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for b in blocks:
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header = b.header(width)
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result.paste(header, (x, y))
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y += header.height
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body = b.body()
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result.paste(body, (x, y))
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y += body.height
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if y >= left_height:
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y = 0
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x += width + 8
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result.save(sys.argv[2])
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