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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.
116 lines
2.7 KiB
Python
116 lines
2.7 KiB
Python
#
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# The Python Imaging Library
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# $Id$
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#
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# base class for raster font file parsers
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#
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# history:
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# 1997-06-05 fl created
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# 1997-08-19 fl restrict image width
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#
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# Copyright (c) 1997-1998 by Secret Labs AB
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# Copyright (c) 1997-1998 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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import os
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from . import Image, _binary
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WIDTH = 800
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def puti16(fp, values):
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# write network order (big-endian) 16-bit sequence
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for v in values:
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if v < 0:
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v += 65536
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fp.write(_binary.o16be(v))
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##
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# Base class for raster font file handlers.
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class FontFile(object):
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bitmap = None
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def __init__(self):
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self.info = {}
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self.glyph = [None] * 256
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def __getitem__(self, ix):
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return self.glyph[ix]
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def compile(self):
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"""Create metrics and bitmap"""
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if self.bitmap:
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return
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# create bitmap large enough to hold all data
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h = w = maxwidth = 0
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lines = 1
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for glyph in self:
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if glyph:
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d, dst, src, im = glyph
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h = max(h, src[3] - src[1])
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w = w + (src[2] - src[0])
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if w > WIDTH:
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lines += 1
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w = src[2] - src[0]
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maxwidth = max(maxwidth, w)
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xsize = maxwidth
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ysize = lines * h
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if xsize == 0 and ysize == 0:
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return ""
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self.ysize = h
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# paste glyphs into bitmap
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self.bitmap = Image.new("1", (xsize, ysize))
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self.metrics = [None] * 256
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x = y = 0
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for i in range(256):
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glyph = self[i]
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if glyph:
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d, dst, src, im = glyph
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xx = src[2] - src[0]
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# yy = src[3] - src[1]
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x0, y0 = x, y
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x = x + xx
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if x > WIDTH:
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x, y = 0, y + h
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x0, y0 = x, y
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x = xx
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s = src[0] + x0, src[1] + y0, src[2] + x0, src[3] + y0
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self.bitmap.paste(im.crop(src), s)
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self.metrics[i] = d, dst, s
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def save(self, filename):
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"""Save font"""
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self.compile()
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# font data
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self.bitmap.save(os.path.splitext(filename)[0] + ".pbm", "PNG")
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# font metrics
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with open(os.path.splitext(filename)[0] + ".pil", "wb") as fp:
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fp.write(b"PILfont\n")
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fp.write((";;;;;;%d;\n" % self.ysize).encode("ascii")) # HACK!!!
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fp.write(b"DATA\n")
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for id in range(256):
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m = self.metrics[id]
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if not m:
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puti16(fp, [0] * 10)
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else:
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puti16(fp, m[0] + m[1] + m[2])
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