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annotate OrthancServer/Resources/Fonts/GenerateFont.py @ 4744:c125632f9468

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 06 Jul 2021 13:29:57 +0200
parents d9473bd5ed43
children 7053502fbf97
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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) 2017-2021 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 # This program is distributed in the hope that it will be useful, but
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14 # WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 # General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU General Public License
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20
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21
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22
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23 # sudo pip install freetype-py
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24
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25
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26
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27 import freetype
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28 import json
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29 import os
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30 import sys
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31 import unicodedata
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32
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33
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34 if len(sys.argv) != 3:
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35 print('Usage: %s <Font> <Size>\n' % sys.argv[0])
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36 print('Example: %s /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-B.ttf 16\n' % sys.argv[0])
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37 sys.exit(-1)
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40
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41 FONT = sys.argv[1]
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42 PIXEL_SIZE = int(sys.argv[2])
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43 CHARSET = 'latin-1'
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45
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46 # Load the font
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47 face = freetype.Face(FONT)
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48 face.set_char_size(PIXEL_SIZE * 64)
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49
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50 # Generate all the characters between 0 and 255
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51 characters = ''.join(map(chr, range(0, 256)))
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52
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53 # Interpret the string using the required charset
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54 characters = characters.decode(CHARSET, 'ignore')
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55
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56 # Keep only non-control characters
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57 characters = filter(lambda c: unicodedata.category(c)[0] != 'C', characters)
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58
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59 font = {
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60 'Name' : os.path.basename(FONT),
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61 'Size' : PIXEL_SIZE,
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62 'Characters' : {}
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63 }
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64
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65
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66 def PrintCharacter(c):
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67 pos = 0
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68 for i in range(c['Height']):
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69 s = ''
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70 for j in range(c['Width']):
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71 if c['Bitmap'][pos] > 127:
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72 s += '*'
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73 else:
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74 s += ' '
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75 pos += 1
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76 print s
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77
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78
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79 for c in characters:
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80 face.load_char(c)
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81
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82 info = {
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83 'Width' : face.glyph.bitmap.width,
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84 'Height' : face.glyph.bitmap.rows,
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85 'Advance' : face.glyph.metrics.horiAdvance / 64,
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86 'Top' : -face.glyph.metrics.horiBearingY / 64,
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87 'Bitmap' : face.glyph.bitmap.buffer,
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88 }
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89
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90 font['Characters'][ord(c)] = info
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91
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92 #PrintCharacter(info)
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93
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94 minTop = min(map(lambda (k, v): v['Top'], font['Characters'].iteritems()))
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95 for c in font['Characters']:
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96 font['Characters'][c]['Top'] -= minTop
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97
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98 font['MaxAdvance'] = max(map(lambda (k, v): v['Advance'], font['Characters'].iteritems()))
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99 font['MaxHeight'] = max(map(lambda (k, v): v['Height'], font['Characters'].iteritems()))
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100
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101 print json.dumps(font)