291 lines
12 KiB
Python
Executable File
291 lines
12 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import bz2
|
|
import math
|
|
import re
|
|
import argparse
|
|
|
|
CP_MAX = 0x10FFFF
|
|
FONT_CPP = "resources/font.bz2"
|
|
FONT_HEIGHT = 12
|
|
|
|
|
|
class ReadBDFError(RuntimeError):
|
|
def __init__(self, line_number, message):
|
|
super().__init__(self, 'line %i: %s' % (line_number, message))
|
|
|
|
|
|
class FontTool:
|
|
def __init__(self, file):
|
|
self.file = file
|
|
with open(self.file, 'rb') as font_cpp:
|
|
font_cpp_data = bz2.decompress(font_cpp.read())
|
|
i = 0
|
|
self.code_points = [False for _ in range(CP_MAX + 2)]
|
|
while i < len(font_cpp_data):
|
|
cp = font_cpp_data[i] | (font_cpp_data[i + 1] << 8) | (font_cpp_data[i + 2] << 16)
|
|
width = font_cpp_data[i + 3]
|
|
n = i + 4 + 3 * width
|
|
self.code_points[cp] = font_cpp_data[(i + 3): n]
|
|
i = n
|
|
|
|
def commit(self):
|
|
l = []
|
|
for i, data in enumerate(self.code_points):
|
|
if data:
|
|
l.append(i & 0xFF)
|
|
l.append((i >> 8) & 0xFF)
|
|
l.append((i >> 16) & 0xFF)
|
|
l += data
|
|
with open(self.file, 'wb') as font_cpp:
|
|
font_cpp.write(bz2.compress(bytes(l)))
|
|
|
|
def pack(cp_matrix):
|
|
width = 0
|
|
for row in cp_matrix:
|
|
if width < len(row):
|
|
width = len(row)
|
|
cp_data = [width]
|
|
bits = 8
|
|
for row in cp_matrix:
|
|
padded = row + [0] * (width - len(row))
|
|
for cv in padded:
|
|
if bits == 8:
|
|
cp_data.append(0)
|
|
bits = 0
|
|
cp_data[-1] |= (cv & 3) << bits
|
|
bits += 2
|
|
return cp_data
|
|
|
|
def unpack(cp_data):
|
|
ptr = 1
|
|
bits = 0
|
|
buf = 0
|
|
cp_matrix = []
|
|
for y in range(FONT_HEIGHT):
|
|
cp_matrix.append([])
|
|
for x in range(cp_data[0]):
|
|
if bits == 0:
|
|
buf = cp_data[ptr]
|
|
ptr += 1
|
|
bits = 8
|
|
cp_matrix[-1].append(buf & 3)
|
|
buf >>= 2
|
|
bits -= 2
|
|
return cp_matrix
|
|
|
|
def dump(self, i, print):
|
|
lut = [' ', '░░', '▒▒', '▓▓']
|
|
if self.code_points[i]:
|
|
print('code point %i (%c)' % (i, i))
|
|
print('')
|
|
for l in [''.join([lut[ch] for ch in row]) for row in FontTool.unpack(self.code_points[i])]:
|
|
print(l)
|
|
print('')
|
|
else:
|
|
print('code point %i (%c) is not available' % (i, i))
|
|
|
|
|
|
class RawReader:
|
|
def __init__(self, path):
|
|
self.code_points = [False for _ in range(CP_MAX + 2)]
|
|
with open(path) as raw:
|
|
items = [int(v) for v in re.findall(r'[0-9]+', raw.read())]
|
|
ptr = 0
|
|
while ptr <= len(items) - 2:
|
|
cp = items[ptr]
|
|
width = items[ptr + 1]
|
|
ptr += 2
|
|
matrix = []
|
|
for i in range(ptr, ptr + width * FONT_HEIGHT, width):
|
|
matrix.append(items[i: (i + width)])
|
|
ptr += width * FONT_HEIGHT
|
|
self.code_points[cp] = FontTool.pack(matrix)
|
|
|
|
|
|
class BDFReader:
|
|
|
|
def __init__(self, path, xoffs, yoffs):
|
|
self.code_points = [False for _ in range(CP_MAX + 2)]
|
|
item_re = re.compile(r'[^ \n\r]+')
|
|
with open(path) as bdf:
|
|
global_dw = False
|
|
startchar = False
|
|
bitmap = False
|
|
char_dw = False
|
|
char_cp = False
|
|
char_bbx = False
|
|
skip = 0
|
|
for line_number, line in enumerate(bdf):
|
|
if skip:
|
|
skip -= 1
|
|
continue
|
|
items = re.findall(item_re, line)
|
|
if startchar and items[0] == 'ENDCHAR':
|
|
if len(bitmap) != char_bbx[1]:
|
|
raise ReadBDFError(line_number, "invalid bitmap data")
|
|
cp_matrix = []
|
|
for y in range(FONT_HEIGHT):
|
|
cp_matrix.append([])
|
|
for x in range(char_dw):
|
|
cv = 0
|
|
xx = x + xoffs
|
|
yy = FONT_HEIGHT - 1 - y + yoffs
|
|
if char_bbx[2] <= xx < char_bbx[0] + char_bbx[2] and char_bbx[3] <= yy < char_bbx[1] + \
|
|
char_bbx[3]:
|
|
cv = bitmap[char_bbx[1] - 1 - (yy - char_bbx[3])][xx - char_bbx[2]] * 3
|
|
cp_matrix[-1].append(cv)
|
|
self.code_points[char_cp] = FontTool.pack(cp_matrix)
|
|
startchar = False
|
|
bitmap = False
|
|
char_dw = False
|
|
char_cp = False
|
|
char_bbx = False
|
|
elif bitmap != False:
|
|
if len(items) != 1:
|
|
raise ReadBDFError(line_number, "missing bitmap data")
|
|
bits = []
|
|
for ch in items[0]:
|
|
cv = int(ch, 16)
|
|
bits += [cv & 8 and 1 or 0, cv & 4 and 1 or 0, cv & 2 and 1 or 0, cv & 1 and 1 or 0]
|
|
bitmap.append(bits[: char_bbx[0]])
|
|
elif items[0] == 'SIZE':
|
|
if len(items) != 4:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
elif items[0] == 'FONTBOUNDINGBOX':
|
|
if len(items) != 5:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
elif not startchar and items[0] == 'STARTCHAR':
|
|
startchar = True
|
|
char_dw = global_dw
|
|
elif items[0] == 'STARTPROPERTIES':
|
|
if len(items) != 2:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
skip = int(items[1]) + 1
|
|
elif startchar and items[0] == 'BITMAP':
|
|
bitmap = []
|
|
elif startchar and items[0] == 'BBX':
|
|
if len(items) != 5:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
char_bbx = [int(items[1]), int(items[2]), int(items[3]), int(items[4])]
|
|
elif startchar and items[0] == 'ENCODING':
|
|
if len(items) != 2:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
char_cp = int(items[1])
|
|
elif items[0] == 'METRICSSET':
|
|
if len(items) != 2:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
if int(items[1]) == 1:
|
|
raise ReadBDFError(line_number, "font does not support writing direction 0")
|
|
elif items[0] == 'DWIDTH':
|
|
if len(items) != 3:
|
|
raise ReadBDFError(line_number, "invalid directive")
|
|
if int(items[2]) != 0:
|
|
raise ReadBDFError(line_number, "vertical component of dwidth vector is non-zero")
|
|
char_dw = int(items[1])
|
|
if not startchar:
|
|
global_dw = char_dw
|
|
|
|
def pad_str(s, pad, n):
|
|
return s + pad * (n - len(s))
|
|
|
|
if __name__ == "__main__":
|
|
|
|
parser = argparse.ArgumentParser("fonttool.py", description="font tools for managing fonts, this script can be"
|
|
" imported as a module",
|
|
fromfile_prefix_chars="@")
|
|
command = parser.add_subparsers(dest="command", required=True)
|
|
|
|
addbdf = command.add_parser("addbdf", help="Adds BDF Formated Font")
|
|
addbdf.add_argument("first", metavar="FIRST", type=int)
|
|
addbdf.add_argument("last", metavar="LAST", type=int)
|
|
addbdf.add_argument("bdffile", metavar="BDFFILE", help="BDF is an archaic bitmap font format")
|
|
addbdf.add_argument("xoffs", metavar="XOFFS", nargs="?", default=0, type=int, help="Defaults to 0")
|
|
addbdf.add_argument("yoffs", metavar="YOFFS", nargs="?", default=0, type=int, help="Defaults to 0")
|
|
|
|
addraw = command.add_parser("addraw", help="Adds a Raw Formated Font")
|
|
addraw.add_argument("first", metavar="FIRST", type=int)
|
|
addraw.add_argument("last", metavar="LAST", type=int)
|
|
addraw.add_argument("rawfile", metavar="RAWFILE", help=""""Raw" files are simply ASCII-encoded white-space delimited \
|
|
lists
|
|
of decimal integer constants. These lists of integers encode
|
|
characters as any number of consecutive character description
|
|
structures laid out as follows:
|
|
* the code point corresponding to the character being described;
|
|
* the width in pixels of the character being described;
|
|
* width times %i brightness levels between 0 and 3, a row-major matrix.""")
|
|
|
|
remove = command.add_parser("remove", help="Remove a range of characters")
|
|
remove.add_argument("first", metavar="FIRST", type=int)
|
|
remove.add_argument("last", metavar="LAST", type=int, default=None, nargs="?", help="Defaults to FIRST")
|
|
|
|
copy = command.add_parser("copy", help="Copy a range of characters to another range")
|
|
copy.add_argument("dest", metavar="DSTFIRST", type=int)
|
|
copy.add_argument("first", metavar="SRCFIRST", type=int)
|
|
copy.add_argument("last", metavar="SRCLAST", type=int, default=None, nargs="?", help="Defaults to SRCFIRST")
|
|
|
|
inspect = command.add_parser("inspect", help="Inspect a range of characters")
|
|
inspect.add_argument("first", metavar="FIRST", type=int)
|
|
inspect.add_argument("last", metavar="LAST", type=int, default=None, nargs="?", help="Defaults to FIRST")
|
|
|
|
diff = command.add_parser("diff", help="Prints subranges that changed between the current and an external font file")
|
|
diff.add_argument("external", metavar="EXTERNAL", help="External font.bz2")
|
|
|
|
args = parser.parse_args()
|
|
|
|
if 'first' in args:
|
|
cp_first = args.first
|
|
if args.last is None:
|
|
cp_last = cp_first
|
|
else:
|
|
cp_last = args.last
|
|
if cp_first < 0 or cp_last > CP_MAX or cp_first > cp_last:
|
|
print('invalid range')
|
|
exit(1)
|
|
|
|
ft = FontTool(FONT_CPP)
|
|
|
|
if args.command == "addbdf":
|
|
xoffs = args.xoffs
|
|
yoffs = args.yoffs
|
|
bdfr = BDFReader(args.bdffile, xoffs, yoffs)
|
|
for i in range(cp_first, cp_last + 1):
|
|
if bdfr.code_points[i] and not ft.code_points[i]:
|
|
ft.code_points[i] = bdfr.code_points[i]
|
|
ft.commit()
|
|
elif args.command == 'addraw':
|
|
rr = RawReader(args.rawfile)
|
|
for i in range(cp_first, cp_last + 1):
|
|
if rr.code_points[i] and not ft.code_points[i]:
|
|
ft.code_points[i] = rr.code_points[i]
|
|
ft.commit()
|
|
elif args.command == 'remove':
|
|
for i in range(cp_first, cp_last + 1):
|
|
ft.code_points[i] = False
|
|
ft.commit()
|
|
elif args.command == 'copy':
|
|
for i in range(cp_first, cp_last + 1):
|
|
ft.code_points[i + (args.dest - cp_first)] = ft.code_points[i]
|
|
ft.commit()
|
|
elif args.command == 'inspect':
|
|
for i in range(cp_first, cp_last + 1):
|
|
ft.dump(i, print)
|
|
elif args.command == 'diff':
|
|
pad_to = 50
|
|
eft = FontTool(args.external)
|
|
for i in range(0, CP_MAX + 1):
|
|
if eft.code_points[i] != ft.code_points[i]:
|
|
cur = []
|
|
def add_cur(line):
|
|
global cur
|
|
cur.append(line)
|
|
ft.dump(i, add_cur)
|
|
ext = []
|
|
def add_ext(line):
|
|
global ext
|
|
ext.append(line)
|
|
eft.dump(i, add_ext)
|
|
print('#' * (2 * pad_to + 7))
|
|
for j in range(max(len(cur), len(ext))):
|
|
print('# ' + pad_str(j < len(cur) and cur[j] or '', ' ', pad_to) + ' # ' + pad_str(j < len(ext) and ext[j] or '', ' ', pad_to) + ' #')
|