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#!/usr/bin/env python3
# coding: utf-8
# Copyright (C) 2017-present Robert Griesel
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
import gi
gi.require_version('Poppler', '0.18')
from gi.repository import Poppler
import xml.etree.ElementTree as ET
import subprocess, os, os.path
import re
folders = [
'arrows',
'greek_letters',
'operators',
'misc_math',
'misc_text',
'relations'
]
def generate_tex(border_h, border_v):
tex_file = '''\\documentclass[12pt, border={ ''' + str(border_h) + 'pt ' + str(border_v) + '''pt }]{standalone}\n
\\usepackage[T1]{fontenc}\n
'''
try: tex_file += '\\usepackage{' + attrib['package'] + '}\n'
except KeyError: pass
tex_file += '\\begin{document}\n'
try: is_math = attrib['math']
except KeyError: is_math = '0'
try: command = attrib['gencommand']
except KeyError: command = attrib['command']
if is_math == '1':
tex_file += '\\ensuremath{' + command + '}\n'
else:
tex_file += command + '\n'
tex_file += '\\end{document}\n'
return tex_file
for folder in folders:
tree = ET.parse('../data/resources/symbols/' + folder + '.xml')
root = tree.getroot()
for child in root:
attrib = child.attrib
# make pdf
tex_file = generate_tex(1, 1)
with open('./temp.tex', 'w') as f: f.write(tex_file)
arguments = ['xelatex', 'temp.tex']
process = subprocess.Popen(arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
process.wait()
process.kill()
# get pdf size
document = Poppler.Document.new_from_file('file:' + os.path.dirname(os.path.realpath(__file__)) + '/temp.pdf')
page = document.get_page(0)
size = page.get_size()
# compute borders to make the image square
if size.width > size.height:
border_h = 1
border_v = 1 + 1.004 * (size.width - size.height) / 2
else:
border_h = 1 + (size.height - size.width) / 2
border_v = 1
# make pdf again with adapted borders
tex_file = generate_tex(border_h, border_v)
with open('./temp.tex', 'w') as f: f.write(tex_file)
arguments = ['xelatex', 'temp.tex']
process = subprocess.Popen(arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
process.wait()
process.kill()
# make svg
try: os.mkdir('../data/resources/symbols')
except FileExistsError: pass
try: os.mkdir('../data/resources/symbols/' + folder)
except FileExistsError: pass
try: os.mkdir('../data/resources/symbols/' + folder + '/hicolor')
except FileExistsError: pass
try: os.mkdir('../data/resources/symbols/' + folder + '/hicolor/scalable')
except FileExistsError: pass
try: os.mkdir('../data/resources/symbols/' + folder + '/hicolor/scalable/actions')
except FileExistsError: pass
arguments = ['pdf2svg', 'temp.pdf', '../data/resources/symbols/' + folder + '/hicolor/scalable/actions/sidebar-' + attrib['file'][:-4] + '-symbolic.svg']
process = subprocess.Popen(arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
process.wait()
# get image size
arguments = ['inkscape', '--export-filename=temp.png', '../data/resources/symbols/' + folder + '/hicolor/scalable/actions/sidebar-' + attrib['file'][:-4] + '-symbolic.svg']
process = subprocess.Popen(arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
process.wait()
process.communicate()
process.kill()
arguments = ['file', 'temp.png']
process = subprocess.Popen(arguments, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
process.wait()
output = process.communicate()
output = output[0].decode('utf8')
width_match = re.search('PNG image data, ([0-9]+) x ([0-9]+),', output)
process.kill()
child.set('original_width', width_match.group(1))
child.set('original_height', width_match.group(2))
tree.write('../data/resources/symbols/' + folder + '.xml')
# delete helper files
os.remove('temp.tex')
os.remove('temp.log')
os.remove('temp.aux')
os.remove('temp.pdf')
os.remove('temp.png')
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