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Lucio Andrés Illanes Albornoz 2018-01-02 16:19:07 +01:00
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mirc2png.py Executable file
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#!/usr/bin/env python3
#
# mirc2png -- convert ASCII w/ mIRC control codes to monospaced PNG (for EFnet #MiRCART)
# Copyright (c) 2018 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
from enum import Enum
from PIL import Image, ImageDraw, ImageFont
import string, sys
class MiRCART:
"""Abstraction over ASCIIs containing mIRC control codes"""
# {{{ mIRC colour number to RGBA map given ^B (bold)
ColourMapBold = [
(255, 255, 255, 255), # White
(85, 85, 85, 255), # Grey
(85, 85, 255, 255), # Light Blue
(85, 255, 85, 255), # Light Green
(255, 85, 85, 255), # Light Red
(255, 85, 85, 255), # Light Red
(255, 85, 255, 255), # Pink
(255, 255, 85, 255), # Light Yellow
(255, 255, 85, 255), # Light Yellow
(85, 255, 85, 255), # Light Green
(85, 255, 255, 255), # Light Cyan
(85, 255, 255, 255), # Light Cyan
(85, 85, 255, 255), # Light Blue
(255, 85, 255, 255), # Pink
(85, 85, 85, 255), # Grey
(255, 255, 255, 255), # White
]
# }}}
# {{{ mIRC colour number to RGBA map given none of ^[BFV_] (bold, italic, reverse, underline)
ColourMapNormal = [
(255, 255, 255, 255), # White
(0, 0, 0, 255), # Black
(0, 0, 187, 255), # Blue
(0, 187, 0, 255), # Green
(255, 85, 85, 255), # Light Red
(187, 0, 0, 255), # Red
(187, 0, 187, 255), # Purple
(187, 187, 0, 255), # Yellow
(255, 255, 85, 255), # Light Yellow
(85, 255, 85, 255), # Light Green
(0, 187, 187, 255), # Cyan
(85, 255, 255, 255), # Light Cyan
(85, 85, 255, 255), # Light Blue
(255, 85, 255, 255), # Pink
(85, 85, 85, 255), # Grey
(187, 187, 187, 255), # Light Grey
]
# }}}
# {{{ Parsing loop state
class State(Enum):
STATE_CHAR = 1
STATE_COLOUR_SPEC = 2
# }}}
inFilePath = inFile = None;
inLines = inColsMax = inRows = None;
outFontFilePath = outFontSize = None;
outImg = outImgDraw = outImgFont = None;
outCurColourBg = outCurColourFg = None;
outCurX = outCurY = None;
inCurBold = inCurItalic = inCurReverse = inCurUnderline = None;
inCurColourSpec = None;
state = None;
inCurCol = None;
# {{{ Calculate widest row in lines, ignoring non-printable & mIRC control code sequences
def getMaxCols(self, lines):
maxCols = 0;
for curRow in range(0, len(lines)):
curRowCols = 0; curState = self.State.STATE_CHAR;
curCol = 0; curColLen = len(lines[curRow]);
while curCol < curColLen:
curChar = lines[curRow][curCol]
if curState == self.State.STATE_CHAR:
if curChar == "":
curState = self.State.STATE_COLOUR_SPEC; curCol += 1;
elif curChar in string.printable:
curRowCols += 1; curCol += 1;
else:
curCol += 1;
elif curState == self.State.STATE_COLOUR_SPEC:
if curChar in set(",0123456789"):
curCol += 1;
else:
curState = self.State.STATE_CHAR;
maxCols = max(maxCols, curRowCols)
return maxCols
# }}}
# {{{ Parse single character as regular character and mutate state
def parseAsChar(self, char):
if char == "":
self.inCurCol += 1; self.inCurBold = 0 if self.inCurBold else 1;
elif char == "":
self.state = self.State.STATE_COLOUR_SPEC; self.inCurCol += 1;
elif char == "":
self.inCurCol += 1; self.inCurItalic = 0 if self.inCurItalic else 1;
elif char == "":
self.inCurCol += 1;
self.inCurBold = 0; self.inCurItalic = 0; self.inCurReverse = 0; self.inCurUnderline = 0;
self.inCurColourSpec = "";
elif char == "":
self.inCurCol += 1; self.inCurReverse = 0 if self.inCurReverse else 1;
elif char == "":
self.inCurCol += 1; self.inCurUnderline = 0 if self.inCurUnderline else 1;
elif char == " ":
if self.inCurBold:
self.outImgDraw.rectangle(((self.outCurX, self.outCurY), (self.outCurX + 7, self.outCurY + 14)), fill=self.ColourMapBold[self.outCurColourBg])
else:
self.outImgDraw.rectangle(((self.outCurX, self.outCurY), (self.outCurX + 7, self.outCurY + 14)), fill=self.ColourMapNormal[self.outCurColourBg])
self.outCurX += 7; self.inCurCol += 1;
else:
if self.inCurBold:
self.outImgDraw.rectangle(((self.outCurX, self.outCurY), (self.outCurX + 7, self.outCurY + 14)), fill=self.ColourMapBold[self.outCurColourBg])
# XXX implement italic, reverse, underline
self.outImgDraw.text((self.outCurX, self.outCurY), char, self.ColourMapBold[self.outCurColourFg], self.outImgFont)
else:
self.outImgDraw.rectangle(((self.outCurX, self.outCurY), (self.outCurX + 7, self.outCurY + 14)), fill=self.ColourMapNormal[self.outCurColourBg])
# XXX implement italic, reverse, underline
self.outImgDraw.text((self.outCurX, self.outCurY), char, self.ColourMapNormal[self.outCurColourFg], self.outImgFont)
self.outCurX += 7; self.inCurCol += 1;
# }}}
# {{{ Parse single character as mIRC colour control code sequence and mutate state
def parseAsColourSpec(self, char):
if char in set(",0123456789"):
self.inCurColourSpec += char; self.inCurCol += 1;
else:
self.inCurColourSpec = self.inCurColourSpec.split(",")
if len(self.inCurColourSpec) == 2:
self.outCurColourFg = int(self.inCurColourSpec[0])
self.outCurColourBg = int(self.inCurColourSpec[1] or self.outCurColourBg)
elif len(self.inCurColourSpec) == 1:
self.outCurColourFg = int(self.inCurColourSpec[0])
else:
self.outCurColourBg = 1; self.outCurColourFg = 15;
self.inCurColourSpec = ""; self.state = self.State.STATE_CHAR;
# }}}
#
# Initialisation method
def __init__(self, inFilePath, imgFilePath, fontFilePath, fontSize):
self.inFilePath = inFilePath; self.inFile = open(inFilePath, "r");
self.inLines = self.inFile.readlines()
self.inColsMax = self.getMaxCols(self.inLines)
self.inRows = len(self.inLines)
self.outFontFilePath = fontFilePath; self.outFontSize = int(fontSize);
self.outImg = Image.new("RGBA", (self.inColsMax * 7, self.inRows * 14), self.ColourMapNormal[1])
self.outImgDraw = ImageDraw.Draw(self.outImg)
self.outImgFont = ImageFont.truetype(self.outFontFilePath, self.outFontSize)
self.outCurColourBg = 1; self.outCurColourFg = 15;
self.outCurX = 0; self.outCurY = 0;
for inCurRow in range(0, len(self.inLines)):
self.inCurBold = 0; self.inCurItalic = 0; self.inCurReverse = 0; self.inCurUnderline = 0;
self.inCurColourSpec = ""; self.state = self.State.STATE_CHAR;
self.inCurCol = 0;
while self.inCurCol < len(self.inLines[inCurRow]):
if self.state == self.State.STATE_CHAR:
self.parseAsChar(self.inLines[inCurRow][self.inCurCol])
elif self.state == self.State.STATE_COLOUR_SPEC:
self.parseAsColourSpec(self.inLines[inCurRow][self.inCurCol])
self.outCurX = 0; self.outCurY += 14;
self.inFile.close();
self.outImg.save(imgFilePath);
#
# Entry point
def main(argv0, inFilePath, imgFilePath, fontFilePath, fontSize=11):
_MiRCART = MiRCART(inFilePath, imgFilePath, fontFilePath, fontSize)
if __name__ == "__main__":
if ((len(sys.argv) - 1) < 3)\
or ((len(sys.argv) - 1) > 4):
print("usage: {} " \
"<MiRCART input file pathname> " \
"<PNG image output file pathname> " \
"<Font file pathnane> " \
"[<Font size; defaults to 11>]".format(sys.argv[0]), file=sys.stderr)
else:
main(*sys.argv)
# vim:expandtab foldmethod=marker sw=8 ts=8 tw=120