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annotate Resources/Fonts/GenerateFont.py @ 3103:81b58b549845

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back to using 'var' instead of 'let' since let is not supported by many old browsers. All variables declaration have been moved to the top of the function to better show that their scope is the function
author Alain Mazy <alain@mazy.be>
date Thu, 10 Jan 2019 10:51:36 +0100
parents 4e43e67f8ecf
children 94f4a18a79cc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/python
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2
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3 # Orthanc - A Lightweight, RESTful DICOM Store
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4 # Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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5 # Department, University Hospital of Liege, Belgium
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6 # Copyright (C) 2017-2019 Osimis S.A., Belgium
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7 #
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8 # This program is free software: you can redistribute it and/or
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9 # modify it under the terms of the GNU General Public License as
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10 # published by the Free Software Foundation, either version 3 of the
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11 # License, or (at your option) any later version.
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12 #
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13 # In addition, as a special exception, the copyright holders of this
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14 # program give permission to link the code of its release with the
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15 # OpenSSL project's "OpenSSL" library (or with modified versions of it
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16 # that use the same license as the "OpenSSL" library), and distribute
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17 # the linked executables. You must obey the GNU General Public License
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18 # in all respects for all of the code used other than "OpenSSL". If you
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19 # modify file(s) with this exception, you may extend this exception to
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20 # your version of the file(s), but you are not obligated to do so. If
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21 # you do not wish to do so, delete this exception statement from your
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22 # version. If you delete this exception statement from all source files
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23 # in the program, then also delete it here.
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24 #
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25 # This program is distributed in the hope that it will be useful, but
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26 # WITHOUT ANY WARRANTY; without even the implied warranty of
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27 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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28 # General Public License for more details.
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29 #
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30 # You should have received a copy of the GNU General Public License
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31 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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32
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33
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34
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35
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36 # sudo pip install freetype-py
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37
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38
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39
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40 import freetype
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41 import json
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42 import os
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43 import sys
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44 import unicodedata
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45
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46
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47 if len(sys.argv) != 3:
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48 print('Usage: %s <Font> <Size>\n' % sys.argv[0])
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49 print('Example: %s /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-B.ttf 16\n' % sys.argv[0])
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50 sys.exit(-1)
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51
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52
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53
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54 FONT = sys.argv[1]
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55 PIXEL_SIZE = int(sys.argv[2])
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56 CHARSET = 'latin-1'
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57
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58
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59 # Load the font
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60 face = freetype.Face(FONT)
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61 face.set_char_size(PIXEL_SIZE * 64)
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62
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63 # Generate all the characters between 0 and 255
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64 characters = ''.join(map(chr, range(0, 256)))
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65
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66 # Interpret the string using the required charset
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67 characters = characters.decode(CHARSET, 'ignore')
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68
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69 # Keep only non-control characters
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70 characters = filter(lambda c: unicodedata.category(c)[0] != 'C', characters)
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71
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72 font = {
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73 'Name' : os.path.basename(FONT),
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74 'Size' : PIXEL_SIZE,
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75 'Characters' : {}
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76 }
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77
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78
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79 def PrintCharacter(c):
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80 pos = 0
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81 for i in range(c['Height']):
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82 s = ''
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83 for j in range(c['Width']):
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84 if c['Bitmap'][pos] > 127:
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85 s += '*'
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86 else:
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87 s += ' '
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88 pos += 1
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89 print s
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90
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91
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92 for c in characters:
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93 face.load_char(c)
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94
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95 info = {
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96 'Width' : face.glyph.bitmap.width,
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97 'Height' : face.glyph.bitmap.rows,
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98 'Advance' : face.glyph.metrics.horiAdvance / 64,
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99 'Top' : -face.glyph.metrics.horiBearingY / 64,
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100 'Bitmap' : face.glyph.bitmap.buffer,
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101 }
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102
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103 font['Characters'][ord(c)] = info
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104
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105 #PrintCharacter(info)
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106
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107 minTop = min(map(lambda (k, v): v['Top'], font['Characters'].iteritems()))
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108 for c in font['Characters']:
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109 font['Characters'][c]['Top'] -= minTop
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110
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111 font['MaxAdvance'] = max(map(lambda (k, v): v['Advance'], font['Characters'].iteritems()))
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112 font['MaxHeight'] = max(map(lambda (k, v): v['Height'], font['Characters'].iteritems()))
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113
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114 print json.dumps(font)