100 lines
3.9 KiB
Python
100 lines
3.9 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# Copyright (C) [2021] [Matt Cottam], [mpcottam@raincloud.co.uk]
|
|
#
|
|
# 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.
|
|
#
|
|
|
|
##############################################################################
|
|
# Grey To Mono Alpha *** Convert Greys to Monochrome with varying Opacity
|
|
##############################################################################
|
|
|
|
import math
|
|
|
|
import inkex
|
|
from inkex import Color
|
|
|
|
# Python Standard Libary
|
|
|
|
from statistics import mean
|
|
|
|
|
|
def get_attributes(self):
|
|
for att in dir(self):
|
|
inkex.errormsg((att, getattr(self, att)))
|
|
|
|
|
|
def rgba_to_bw_rgba(self, my_objects):
|
|
apply_to = self.options.apply_to_type_radio
|
|
mono_color = self.options.color_picker_mono.to_rgba()
|
|
opacity_lower_threshold = self.options.opacity_lower_threshold
|
|
opacity_upper_threshold = self.options.opacity_upper_threshold
|
|
opacity_range = opacity_upper_threshold - opacity_lower_threshold
|
|
|
|
for my_object in my_objects:
|
|
|
|
if 'fill' in apply_to and ('fill:none' not in str(my_object.style)):
|
|
my_fill_color = my_object.style.get_color(name='fill').to_rgba()
|
|
my_fill_color_red = my_fill_color[0]
|
|
my_fill_color_green = my_fill_color[1]
|
|
my_fill_color_blue = my_fill_color[2]
|
|
mean_fill_component_value = mean([my_fill_color_red, my_fill_color_blue, my_fill_color_green])
|
|
|
|
if mean_fill_component_value > 0:
|
|
mono_opacity = (1 - (mean_fill_component_value / 256)) * opacity_range
|
|
mono_opacity = mono_opacity + opacity_lower_threshold
|
|
else:
|
|
mono_opacity = opacity_upper_threshold
|
|
|
|
my_object.style['fill'] = str(mono_color)
|
|
my_object.style['fill-opacity'] = str(mono_opacity)
|
|
|
|
if 'stroke' in apply_to and (';stroke:none' not in str(my_object.style)) and ('stroke:' in str(my_object.style)):
|
|
my_stroke_color = my_object.style.get_color(name='stroke').to_rgba()
|
|
my_stroke_color_red = my_stroke_color[0]
|
|
my_stroke_color_green = my_stroke_color[1]
|
|
my_stroke_color_blue = my_stroke_color[2]
|
|
mean_stroke_component_value = mean([my_stroke_color_red, my_stroke_color_blue, my_stroke_color_green])
|
|
|
|
if mean_stroke_component_value > 0:
|
|
mono_opacity = (1 - (mean_stroke_component_value / 256)) * opacity_range
|
|
mono_opacity = mono_opacity + opacity_lower_threshold
|
|
else:
|
|
mono_opacity = opacity_upper_threshold
|
|
|
|
my_object.style['stroke'] = str(mono_color)
|
|
my_object.style['stroke-opacity'] = str(mono_opacity)
|
|
|
|
|
|
class GreyToMonoAlpha(inkex.EffectExtension):
|
|
|
|
def add_arguments(self, pars):
|
|
pars.add_argument("--tab")
|
|
pars.add_argument("--color_picker_mono", type=inkex.colors.Color, default=0)
|
|
pars.add_argument("--apply_to_type_radio", default=None)
|
|
pars.add_argument("--opacity_lower_threshold", type=float, default=0)
|
|
pars.add_argument("--opacity_upper_threshold", type=float, default=1)
|
|
|
|
def effect(self):
|
|
my_objects = self.svg.selected
|
|
if len(my_objects) < 1:
|
|
self.msg('Please select some paths first.')
|
|
return
|
|
rgba_to_bw_rgba(self, my_objects)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
GreyToMonoAlpha().run()
|