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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
115 lines
2.9 KiB
Python
115 lines
2.9 KiB
Python
#
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# The Python Imaging Library
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# $Id$
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#
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# bitmap distribution font (bdf) file parser
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#
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# history:
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# 1996-05-16 fl created (as bdf2pil)
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# 1997-08-25 fl converted to FontFile driver
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# 2001-05-25 fl removed bogus __init__ call
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# 2002-11-20 fl robustification (from Kevin Cazabon, Dmitry Vasiliev)
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# 2003-04-22 fl more robustification (from Graham Dumpleton)
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#
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# Copyright (c) 1997-2003 by Secret Labs AB.
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# Copyright (c) 1997-2003 by Fredrik Lundh.
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#
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# See the README file for information on usage and redistribution.
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#
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from __future__ import print_function
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from . import FontFile, Image
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# --------------------------------------------------------------------
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# parse X Bitmap Distribution Format (BDF)
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# --------------------------------------------------------------------
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bdf_slant = {
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"R": "Roman",
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"I": "Italic",
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"O": "Oblique",
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"RI": "Reverse Italic",
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"RO": "Reverse Oblique",
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"OT": "Other",
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}
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bdf_spacing = {"P": "Proportional", "M": "Monospaced", "C": "Cell"}
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def bdf_char(f):
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# skip to STARTCHAR
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while True:
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s = f.readline()
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if not s:
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return None
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if s[:9] == b"STARTCHAR":
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break
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id = s[9:].strip().decode("ascii")
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# load symbol properties
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props = {}
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while True:
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s = f.readline()
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if not s or s[:6] == b"BITMAP":
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break
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i = s.find(b" ")
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props[s[:i].decode("ascii")] = s[i + 1 : -1].decode("ascii")
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# load bitmap
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bitmap = []
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while True:
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s = f.readline()
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if not s or s[:7] == b"ENDCHAR":
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break
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bitmap.append(s[:-1])
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bitmap = b"".join(bitmap)
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[x, y, l, d] = [int(p) for p in props["BBX"].split()]
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[dx, dy] = [int(p) for p in props["DWIDTH"].split()]
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bbox = (dx, dy), (l, -d - y, x + l, -d), (0, 0, x, y)
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try:
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im = Image.frombytes("1", (x, y), bitmap, "hex", "1")
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except ValueError:
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# deal with zero-width characters
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im = Image.new("1", (x, y))
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return id, int(props["ENCODING"]), bbox, im
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##
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# Font file plugin for the X11 BDF format.
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class BdfFontFile(FontFile.FontFile):
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def __init__(self, fp):
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FontFile.FontFile.__init__(self)
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s = fp.readline()
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if s[:13] != b"STARTFONT 2.1":
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raise SyntaxError("not a valid BDF file")
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props = {}
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comments = []
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while True:
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s = fp.readline()
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if not s or s[:13] == b"ENDPROPERTIES":
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break
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i = s.find(b" ")
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props[s[:i].decode("ascii")] = s[i + 1 : -1].decode("ascii")
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if s[:i] in [b"COMMENT", b"COPYRIGHT"]:
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if s.find(b"LogicalFontDescription") < 0:
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comments.append(s[i + 1 : -1].decode("ascii"))
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while True:
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c = bdf_char(fp)
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if not c:
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break
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id, ch, (xy, dst, src), im = c
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if 0 <= ch < len(self.glyph):
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self.glyph[ch] = xy, dst, src, im
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