git.kianting.info Git - clo/blob - 參考資料-Harfbuzz如何使用.py

   1 import sys
   2
   3 import uharfbuzz as hb
   4
   5
   6 fontfile = sys.argv[1]
   7 text = sys.argv[2]
   8
   9 blob = hb.Blob.from_file_path(fontfile)
  10 face = hb.Face(blob)
  11 font = hb.Font(face)
  12
  13 px = 96
  14 scale = 1000000.0/952997
  15 font.scale = (px *scale* 1024, px*scale * 1024)
  16
  17 buf = hb.Buffer()
  18 buf.add_str(text)
  19 buf.guess_segment_properties()
  20
  21 features = {"kern": True, "liga": True}
  22 hb.shape(font, buf, features)
  23
  24 infos = buf.glyph_infos
  25 positions = buf.glyph_positions
  26
  27 for info, pos in zip(infos, positions):
  28     gid = info.codepoint
  29     cluster = info.cluster
  30     x_advance = pos.x_advance / 1024
  31     y_advance = pos.y_advance / 1024
  32     x_offset = pos.x_offset / 1024
  33     y_offset = pos.y_offset /1024
  34     print(f"gid{gid}={cluster}@{x_advance},{y_offset}+{x_advance},{y_advance}")