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executable file 121 lines (106 sloc) 2.45 KB
#!/usr/bin/env python3
# rainbowtext: render some rainbow text
import argparse
import itertools
from pathlib import Path
import platform
import shlex
import subprocess
_LIGHT_ROYGBIV = {
"red": "#FF0000",
"orange": "#FFA500",
"yellow": "#FFFF00",
"green": "#00FF00",
"blue": "#0000FF",
"indigo": "#B57EDC",
"violet": "#EE82EE",
}
_DARK_ROYGBIV = {
"red": "#AA1100",
"orange": "#FF4400",
"yellow": "#FFBB11",
"green": "#55AA00",
"blue": "#000055",
"indigo": "#310062",
"violet": "#4B0082",
}
_THEME_MAP = {
"light": _LIGHT_ROYGBIV,
"dark": _DARK_ROYGBIV,
}
def find_comic_sans() -> str:
plat = platform.system()
if plat == "Darwin":
return "/System/Library/Fonts/Supplemental/Comic Sans MS.ttf"
else:
return "Comic-Sans-MS" # Hope and pray.
def colorchar(args, color, char):
label = char
if char.isspace():
label = f"\\{char}"
return [
"(",
"-fill",
color,
f"label:{label}",
")",
]
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Render some rainbow text")
parser.add_argument(
"-d",
"--dryrun",
action="store_true",
help="Print the ImageMagick command instead of running it",
)
parser.add_argument(
"-f",
"--font",
type=str,
default=find_comic_sans(),
help="The font to use",
)
parser.add_argument(
"-p",
"--pointsize",
type=int,
default=64,
help="The point size for the text",
)
parser.add_argument(
"-t",
"--theme",
choices=["light", "dark"],
default="light",
help="The color theme to use",
)
parser.add_argument(
"input",
type=str,
help="The input string to render",
)
parser.add_argument(
"output",
type=Path,
help="The filename to write to",
)
args = parser.parse_args()
convert = [
"magick",
"convert",
"-background",
"none",
"-font",
args.font,
"-pointsize",
str(args.pointsize),
]
for (color, char) in zip(
itertools.cycle(_THEME_MAP[args.theme].values()), args.input
):
convert += colorchar(args, color, char)
convert += ["+append", str(args.output)]
if args.dryrun:
print(shlex.join(convert))
else:
subprocess.run(convert)