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# ##### BEGIN GPL LICENSE BLOCK #####
#
# 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 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import re
def srgb_to_linearrgb(c):
if c < 0.04045:
return 0.0 if c < 0.0 else c * (1.0 / 12.92)
else:
return pow((c + 0.055) * (1.0 / 1.055), 2.4)
def check_points_equal(point_a, point_b):
return (abs(point_a[0] - point_b[0]) < 1e-6 and
abs(point_a[1] - point_b[1]) < 1e-6)
match_number = r"-?\d+([eE][-+]?\d+)?"
match_first_comma = r"^\s*(?=,)"
match_comma_pair = r",\s*(?=,)"
match_last_comma = r",\s*$"
pattern = f"({match_number})|{match_first_comma}|{match_comma_pair}|{match_last_comma}"
re_pattern = re.compile(pattern)
def parse_array_of_floats(text):
elements = re_pattern.findall(text)
return [value_to_float(v[0]) for v in elements]
def value_to_float(value_encoded: str):
if len(value_encoded) == 0:
return 0
return float(value_encoded)
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