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comparison Resources/Fonts/GenerateFont.py @ 1610:2dff2bdffdb8

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font support within Orthanc
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 04 Sep 2015 13:44:21 +0200
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children b1291df2f780
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1609:c74495267acf 1610:2dff2bdffdb8
1 #!/usr/bin/python
2
3 # Orthanc - A Lightweight, RESTful DICOM Store
4 # Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
5 # Department, University Hospital of Liege, Belgium
6 #
7 # This program is free software: you can redistribute it and/or
8 # modify it under the terms of the GNU General Public License as
9 # published by the Free Software Foundation, either version 3 of the
10 # License, or (at your option) any later version.
11 #
12 # In addition, as a special exception, the copyright holders of this
13 # program give permission to link the code of its release with the
14 # OpenSSL project's "OpenSSL" library (or with modified versions of it
15 # that use the same license as the "OpenSSL" library), and distribute
16 # the linked executables. You must obey the GNU General Public License
17 # in all respects for all of the code used other than "OpenSSL". If you
18 # modify file(s) with this exception, you may extend this exception to
19 # your version of the file(s), but you are not obligated to do so. If
20 # you do not wish to do so, delete this exception statement from your
21 # version. If you delete this exception statement from all source files
22 # in the program, then also delete it here.
23 #
24 # This program is distributed in the hope that it will be useful, but
25 # WITHOUT ANY WARRANTY; without even the implied warranty of
26 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 # General Public License for more details.
28 #
29 # You should have received a copy of the GNU General Public License
30 # along with this program. If not, see <http://www.gnu.org/licenses/>.
31
32
33
34
35 # sudo pip install freetype-py
36
37
38
39 import freetype
40 import json
41 import os
42 import sys
43 import unicodedata
44
45
46 if len(sys.argv) != 3:
47 print('Usage: %s <Font> <Size>\n' % sys.argv[0])
48 print('Example: %s /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-B.ttf 16\n' % sys.argv[0])
49 sys.exit(-1)
50
51
52
53 FONT = sys.argv[1]
54 PIXEL_SIZE = int(sys.argv[2])
55 CHARSET = 'latin-1'
56
57
58 # Load the font
59 face = freetype.Face(FONT)
60 face.set_char_size(PIXEL_SIZE * 64)
61
62 # Generate all the characters between 0 and 255
63 characters = ''.join(map(chr, range(0, 256)))
64
65 # Interpret the string using the required charset
66 characters = characters.decode(CHARSET, 'ignore')
67
68 # Keep only non-control characters
69 characters = filter(lambda c: unicodedata.category(c)[0] != 'C', characters)
70
71 font = {
72 'Name' : os.path.basename(FONT),
73 'Size' : PIXEL_SIZE,
74 'Characters' : {}
75 }
76
77
78 def PrintCharacter(c):
79 pos = 0
80 for i in range(c['Height']):
81 s = ''
82 for j in range(c['Width']):
83 if c['Bitmap'][pos] > 127:
84 s += '*'
85 else:
86 s += ' '
87 pos += 1
88 print s
89
90
91 for c in characters:
92 face.load_char(c)
93
94 info = {
95 'Width' : face.glyph.bitmap.width,
96 'Height' : face.glyph.bitmap.rows,
97 'Advance' : face.glyph.metrics.horiAdvance / 64,
98 'Top' : -face.glyph.metrics.horiBearingY / 64,
99 'Bitmap' : face.glyph.bitmap.buffer,
100 }
101
102 font['Characters'][ord(c)] = info
103
104 #PrintCharacter(info)
105
106 minTop = min(map(lambda (k, v): v['Top'], font['Characters'].iteritems()))
107 for c in font['Characters']:
108 font['Characters'][c]['Top'] -= minTop
109
110 font['MaxAdvance'] = max(map(lambda (k, v): v['Advance'], font['Characters'].iteritems()))
111 font['MaxHeight'] = max(map(lambda (k, v): v['Height'], font['Characters'].iteritems()))
112
113 print json.dumps(font)