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add optional arguments for UTF support

This commit is contained in:
KikooDX 2022-02-13 23:57:46 +01:00
parent 362916d3c0
commit 111f951a00
2 changed files with 18 additions and 9 deletions
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2
README
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@ -8,7 +8,7 @@ Python 3, pillow
Usage
-----
$ gff <font path> <font size> <output image>
$ gff <font path> <font size> <output image> [initial char index] [char range]
Example:
$ gff "$HOME/.fonts/Kenney Future Narrow" 16 kenney_future_narrow.png

25
gff
View File

@ -1,14 +1,23 @@
#!/usr/bin/env python3
from math import ceil
from sys import argv
from PIL import Image, ImageDraw, ImageFont
if (len(argv) != 4):
raise BaseException("Three arguments expected: " + \
"<font path> <font size> <output image>")
if (len(argv) < 4):
raise BaseException("At least three arguments expected: " + \
"<font path> <font size> <output image> " + \
"[initial char index] [char range]")
font_path = argv[1]
font_size = int(argv[2])
image_out = argv[3]
initial_char_index = int(argv[4]) if len(argv) > 4 else 0x20
char_range = int(argv[5]) if len(argv) > 5 else 96
line_count = ceil(char_range / 16)
scan_index = 0x20 if len(argv) > 4 else initial_char_index
scan_range = 0x30ff - 0x20 if len(argv) > 4 else char_range
assert char_range > 1
mode = '1' # 1-bit depth
background_color = (1) # white
@ -20,8 +29,8 @@ font = ImageFont.truetype(font_path, font_size)
# find max char size
char_width = 0
char_height = 0
for i in range(95):
bbox = list(font.getbbox(chr(32 + i)))
for i in range(scan_range):
bbox = list(font.getbbox(chr(scan_index + i)))
# don't you dare overlap
if (bbox[0] < 0):
bbox[2] = -bbox[0]
@ -33,7 +42,7 @@ for i in range(95):
char_height = bbox[3]
image_out_width = char_width * 16
image_out_height = char_height * 6
image_out_height = char_height * line_count
# fxconv metadata
print(f"{image_out.split('/')[-1]}:")
@ -50,9 +59,9 @@ draw.rectangle((0, 0, image_out_width, image_out_height), fill=background_color)
x = -char_width
y = 0
for i in range(95):
for i in range(char_range):
x += char_width
char = chr(32 + i)
char = chr(initial_char_index + i)
bbox = font.getbbox(char)
x_mod = 0
y_mod = 0