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annotate Resources/Fonts/GenerateFont.py @ 1900:b1291df2f780

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2016
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 04 Jan 2016 13:17:22 +0100
parents 2dff2bdffdb8
children a3a65de1840f
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1 #!/usr/bin/python
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2
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3 # Orthanc - A Lightweight, RESTful DICOM Store
1900
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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 #
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7 # This program is free software: you can redistribute it and/or
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8 # modify it under the terms of the GNU General Public License as
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9 # published by the Free Software Foundation, either version 3 of the
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10 # License, or (at your option) any later version.
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11 #
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12 # In addition, as a special exception, the copyright holders of this
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13 # program give permission to link the code of its release with the
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14 # OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 # that use the same license as the "OpenSSL" library), and distribute
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16 # the linked executables. You must obey the GNU General Public License
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17 # in all respects for all of the code used other than "OpenSSL". If you
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18 # modify file(s) with this exception, you may extend this exception to
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19 # your version of the file(s), but you are not obligated to do so. If
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20 # you do not wish to do so, delete this exception statement from your
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21 # version. If you delete this exception statement from all source files
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22 # in the program, then also delete it here.
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23 #
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24 # This program is distributed in the hope that it will be useful, but
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25 # WITHOUT ANY WARRANTY; without even the implied warranty of
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26 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 # General Public License for more details.
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28 #
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29 # You should have received a copy of the GNU General Public License
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30 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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31
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32
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33
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34
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35 # sudo pip install freetype-py
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36
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37
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38
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39 import freetype
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40 import json
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41 import os
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42 import sys
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43 import unicodedata
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44
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45
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46 if len(sys.argv) != 3:
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47 print('Usage: %s <Font> <Size>\n' % sys.argv[0])
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48 print('Example: %s /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-B.ttf 16\n' % sys.argv[0])
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49 sys.exit(-1)
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50
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51
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52
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53 FONT = sys.argv[1]
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54 PIXEL_SIZE = int(sys.argv[2])
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55 CHARSET = 'latin-1'
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56
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57
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58 # Load the font
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59 face = freetype.Face(FONT)
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60 face.set_char_size(PIXEL_SIZE * 64)
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61
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62 # Generate all the characters between 0 and 255
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63 characters = ''.join(map(chr, range(0, 256)))
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64
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65 # Interpret the string using the required charset
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66 characters = characters.decode(CHARSET, 'ignore')
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67
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68 # Keep only non-control characters
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69 characters = filter(lambda c: unicodedata.category(c)[0] != 'C', characters)
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70
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71 font = {
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72 'Name' : os.path.basename(FONT),
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73 'Size' : PIXEL_SIZE,
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74 'Characters' : {}
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75 }
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76
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77
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78 def PrintCharacter(c):
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79 pos = 0
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80 for i in range(c['Height']):
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81 s = ''
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82 for j in range(c['Width']):
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83 if c['Bitmap'][pos] > 127:
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84 s += '*'
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85 else:
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86 s += ' '
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87 pos += 1
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88 print s
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89
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90
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91 for c in characters:
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92 face.load_char(c)
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93
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94 info = {
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95 'Width' : face.glyph.bitmap.width,
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96 'Height' : face.glyph.bitmap.rows,
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97 'Advance' : face.glyph.metrics.horiAdvance / 64,
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98 'Top' : -face.glyph.metrics.horiBearingY / 64,
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99 'Bitmap' : face.glyph.bitmap.buffer,
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100 }
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101
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102 font['Characters'][ord(c)] = info
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103
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104 #PrintCharacter(info)
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105
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106 minTop = min(map(lambda (k, v): v['Top'], font['Characters'].iteritems()))
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107 for c in font['Characters']:
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108 font['Characters'][c]['Top'] -= minTop
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109
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110 font['MaxAdvance'] = max(map(lambda (k, v): v['Advance'], font['Characters'].iteritems()))
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111 font['MaxHeight'] = max(map(lambda (k, v): v['Height'], font['Characters'].iteritems()))
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112
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113 print json.dumps(font)