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# coding=utf-8
#
# Copyright (C) 2018 Martin Owens
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
#
"""
SVG specific utilities for tests.
"""
from lxml import etree
from inkex import SVG_PARSER
def svg(svg_attrs=""):
"""Returns xml etree based on a simple SVG element.
svg_attrs: A string containing attributes to add to the
root <svg> element of a minimal SVG document.
"""
return etree.fromstring(
str.encode(
'<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
f"<svg {svg_attrs}></svg>"
),
parser=SVG_PARSER,
)
def svg_unit_scaled(width_unit):
"""Same as svg, but takes a width unit (top-level transform) for the new document.
The transform is the ratio between the SVG width and the viewBox width.
"""
return svg(f'width="1{width_unit}" viewBox="0 0 1 1"')
def svg_file(filename):
"""Parse an svg file and return it's document root"""
with open(filename, "r", encoding="utf-8") as fhl:
doc = etree.parse(fhl, parser=SVG_PARSER)
return doc.getroot()
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