mirror of
https://github.com/googlefonts/noto-emoji.git
synced 2025-07-08 21:36:59 +00:00
Fix indentation, format code according to autopep8
This commit is contained in:
Roel Nieskens
parent
833a43d032
commit
9eade97ded
1 changed files with 259 additions and 236 deletions
95
third_party/color_emoji/emoji_builder.py
vendored
95
third_party/color_emoji/emoji_builder.py
vendored
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@ -17,7 +17,6 @@
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# Google Author(s): Behdad Esfahbod, Stuart Gill, Roozbeh Pournader
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#
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from __future__ import print_function
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import sys, struct, StringIO
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from png import PNG
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@ -26,6 +25,7 @@ from os import path
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from nototools import font_data
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def get_glyph_name_from_gsub(string, font, cmap_dict):
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ligatures = font['GSUB'].table.LookupList.Lookup[0].SubTable[0].ligatures
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first_glyph = cmap_dict[ord(string[0])]
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@ -38,18 +38,22 @@ def get_glyph_name_from_gsub (string, font, cmap_dict):
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def div(a, b):
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return int(round(a / float(b)))
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class FontMetrics:
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def __init__(self, upem, ascent, descent):
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self.upem = upem
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self.ascent = ascent
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self.descent = descent
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class StrikeMetrics:
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def __init__(self, font_metrics, advance, bitmap_width, bitmap_height):
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self.width = bitmap_width # in pixels
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self.height = bitmap_height # in pixels
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self.advance = advance # in font units
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self.x_ppem = self.y_ppem = div (bitmap_width * font_metrics.upem, advance)
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self.x_ppem = self.y_ppem = div(bitmap_width * font_metrics.upem,
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advance)
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class GlyphMap:
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def __init__(self, glyph, offset, image_format):
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@ -60,7 +64,6 @@ class GlyphMap:
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# Based on http://www.microsoft.com/typography/otspec/ebdt.htm
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class CBDT:
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def __init__(self, font_metrics, options=(), stream=None):
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self.stream = stream if stream != None else bytearray()
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self.options = options
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@ -70,8 +73,10 @@ class CBDT:
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def tell(self):
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return len(self.stream) - self.base_offset
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def write(self, data):
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self.stream.extend(data)
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def data(self):
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return self.stream
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@ -135,27 +140,25 @@ class CBDT:
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# BYTE vertAdvance
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try:
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if big_metrics:
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self.write (struct.pack ("BBbbBbbB",
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height, width,
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x_bearing, y_bearing,
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advance,
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vert_x_bearing, vert_y_bearing,
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vert_advance))
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self.write(
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struct.pack("BBbbBbbB", height, width, x_bearing,
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y_bearing, advance, vert_x_bearing,
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vert_y_bearing, vert_advance))
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else:
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self.write (struct.pack ("BBbbB",
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height, width,
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x_bearing, y_bearing,
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self.write(
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struct.pack("BBbbB", height, width, x_bearing, y_bearing,
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advance))
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except Exception as e:
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raise ValueError("%s, h: %d w: %d x: %d y: %d %d a:" % (
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e, height, width, x_bearing, y_bearing, advance))
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raise ValueError("%s, h: %d w: %d x: %d y: %d %d a:" %
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(e, height, width, x_bearing, y_bearing, advance))
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def write_format1(self, png):
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import cairo
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img = cairo.ImageSurface.create_from_png(png.stream())
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if img.get_format() != cairo.FORMAT_ARGB32:
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raise Exception ("Expected FORMAT_ARGB32, but image has format %d" % img.get_format ())
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raise Exception("Expected FORMAT_ARGB32, but image has format %d" %
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img.get_format())
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width = img.get_width()
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height = img.get_height()
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@ -209,7 +212,6 @@ class CBDT:
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# Based on http://www.microsoft.com/typography/otspec/eblc.htm
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class CBLC:
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def __init__(self, font_metrics, options=(), stream=None):
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self.stream = stream if stream != None else bytearray()
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self.streams = []
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@ -220,13 +222,17 @@ class CBLC:
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def tell(self):
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return len(self.stream) - self.base_offset
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def write(self, data):
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self.stream.extend(data)
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def data(self):
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return self.stream
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def push_stream(self, stream):
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self.streams.append(self.stream)
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self.stream = stream
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def pop_stream(self):
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stream = self.stream
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self.stream = self.streams.pop()
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@ -276,12 +282,21 @@ class CBLC:
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line_height = div((ascent + descent) * y_ppem, upem)
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ascent = div(ascent * y_ppem, upem)
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descent = -(line_height - ascent)
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self.write (struct.pack ("bbBbbbbbbbbb",
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ascent, descent,
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self.write(
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struct.pack(
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"bbBbbbbbbbbb",
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ascent,
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descent,
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self.strike_metrics.width,
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0, 0, 0,
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0, 0, 0, 0, # TODO
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0, 0))
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0,
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0,
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0,
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0,
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0,
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0,
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0, # TODO
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0,
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0))
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def write_sbitLineMetrics_vert(self):
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self.write_sbitLineMetrics_hori() # XXX
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@ -295,7 +310,8 @@ class CBLC:
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imageDataOffset = glyph_maps[0].offset
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self.write(struct.pack(">L", imageDataOffset)) # ULONG imageDataOffset
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for gmap in glyph_maps[:-1]:
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self.write (struct.pack(">L", gmap.offset - imageDataOffset)) # ULONG offsetArray
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self.write(struct.pack(">L", gmap.offset -
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imageDataOffset)) # ULONG offsetArray
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assert gmap.image_format == image_format
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self.write(struct.pack(">L", glyph_maps[-1].offset - imageDataOffset))
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@ -322,7 +338,9 @@ class CBLC:
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last_id = 0
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for gmap in glyph_maps[1:-1]:
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if last_glyph + 1 != gmap.glyph or last_image_format != gmap.image_format:
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headers.extend (struct.pack(">HHL", start, last_glyph, headersLen + len (subtables)))
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headers.extend(
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struct.pack(">HHL", start, last_glyph,
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headersLen + len(subtables)))
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self.push_stream(subtables)
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self.write_indexSubTable1(glyph_maps[start_id:last_id + 2])
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self.pop_stream()
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@ -332,7 +350,9 @@ class CBLC:
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last_glyph = gmap.glyph
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last_image_format = gmap.image_format
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last_id += 1
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headers.extend (struct.pack(">HHL", start, last_glyph, headersLen + len (subtables)))
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headers.extend(
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struct.pack(">HHL", start, last_glyph,
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headersLen + len(subtables)))
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self.push_stream(subtables)
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self.write_indexSubTable1(glyph_maps[start_id:last_id + 2])
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self.pop_stream()
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@ -341,7 +361,8 @@ class CBLC:
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numberOfIndexSubTables = count
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bitmapSizeTableSize = 48 * self.num_strikes
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indexSubTableArrayOffset = 8 + bitmapSizeTableSize + len (self.otherTables)
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indexSubTableArrayOffset = 8 + bitmapSizeTableSize + len(
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self.otherTables)
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self.push_stream(self.bitmapSizeTables)
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# bitmapSizeTable
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@ -431,7 +452,8 @@ By default they are dropped.
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If -C is given, unused chunks (color profile, etc) are NOT
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dropped from the PNG images when embedding.
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By default they are dropped.
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""", file=sys.stderr)
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""",
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file=sys.stderr)
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sys.exit(1)
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font_file = argv[1]
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@ -451,14 +473,12 @@ By default they are dropped.
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except KeyError:
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pass
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print()
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font = ttx.TTFont(font_file)
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print("Loaded font '%s'." % font_file)
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font_metrics = FontMetrics (font['head'].unitsPerEm,
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font['hhea'].ascent,
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font_metrics = FontMetrics(font['head'].unitsPerEm, font['hhea'].ascent,
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-font['hhea'].descent)
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print("Font metrics: upem=%d ascent=%d descent=%d." % \
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(font_metrics.upem, font_metrics.ascent, font_metrics.descent))
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@ -469,8 +489,8 @@ By default they are dropped.
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if not unicode_cmap:
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raise Exception("Failed to find a Unicode cmap.")
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image_format = 1 if 'uncompressed' in options else (17
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if 'small_glyph_metrics' in options else 18)
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image_format = 1 if 'uncompressed' in options else (
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17 if 'small_glyph_metrics' in options else 18)
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ebdt = CBDT(font_metrics, options)
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ebdt.write_header()
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@ -502,7 +522,8 @@ By default they are dropped.
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img_files[uchars] = img_file
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if not img_files:
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raise Exception("No image files found in '%s'." % glb)
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print("Found images for %d characters in '%s'." % (len (img_files), glb))
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print("Found images for %d characters in '%s'." %
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(len(img_files), glb))
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glyph_imgs = {}
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advance = width = height = 0
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@ -514,7 +535,8 @@ By default they are dropped.
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print("no cmap entry for %x" % ord(uchars))
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raise ValueError("%x" % ord(uchars))
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else:
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glyph_name = get_glyph_name_from_gsub (uchars, font, unicode_cmap.cmap)
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glyph_name = get_glyph_name_from_gsub(uchars, font,
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unicode_cmap.cmap)
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glyph_id = font.getGlyphID(glyph_name)
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glyph_imgs[glyph_id] = img_file
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if "verbose" in options:
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@ -529,10 +551,12 @@ By default they are dropped.
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glyphs = sorted(glyph_imgs.keys())
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if not glyphs:
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raise Exception ("No common characters found between font and '%s'." % glb)
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raise Exception(
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"No common characters found between font and '%s'." % glb)
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print("Embedding images for %d glyphs for this strike." % len(glyphs))
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advance, width, height = (div (x, len (glyphs)) for x in (advance, width, height))
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advance, width, height = (div(x, len(glyphs))
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for x in (advance, width, height))
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strike_metrics = StrikeMetrics(font_metrics, advance, width, height)
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print("Strike ppem set to %d." % (strike_metrics.y_ppem))
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@ -566,6 +590,5 @@ By default they are dropped.
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font.save(out_file)
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print("Output font '%s' generated." % out_file)
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if __name__ == '__main__':
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main(sys.argv)
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