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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Allows saving (TODO: and loading) CSS gradient files
# Copyright (C) 2011 João S. O. Bueno <gwidion@gmail.com>
#
# 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 <https://www.gnu.org/licenses/>.
# Currently this exports all color segments as RGB linear centered segments.
# TODO: Respect gradient alpha, off-center segments, different blending
# functions and HSV colors
import gi
gi.require_version('Gimp', '3.0')
from gi.repository import Gimp
from gi.repository import GObject
from gi.repository import GLib
from gi.repository import Gio
import time
import sys
def N_(message): return message
def _(message): return GLib.dgettext(None, message)
w3c_template = """background-image: linear-gradient(top, %s);\n"""
color_to_html = lambda r, g, b: "rgb(%d,%d,%d)" % (int(255 * r), int(255 * g), int(255 * b))
def format_text(text):
counter = 0
new_text = []
for token in text.split(","):
if counter + len(token) > 77:
token = "\n " + token
counter = 4
new_text.append(token)
if "\n" in token:
counter = len(token.rsplit("\n")[-1]) + 1
else:
counter += len(token) + 1
return ",".join(new_text)
def gradient_css_save(procedure, config, data):
runmode = config.get_property("run-mode")
if runmode == Gimp.RunMode.INTERACTIVE:
gi.require_version('GimpUi', '3.0')
from gi.repository import GimpUi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
GimpUi.init('python-fu-gradient-save-as-css')
dialog = GimpUi.ProcedureDialog(procedure=procedure, config=config)
# Fill the dialog.
config.set_property("gradient", None)
dialog.fill (["gradient", "file"])
if not dialog.run():
dialog.destroy()
return procedure.new_return_values(Gimp.PDBStatusType.CANCEL, GLib.Error())
gradient = config.get_property("gradient")
file = config.get_property("file")
if file is None:
error = 'No file given'
return procedure.new_return_values(Gimp.PDBStatusType.CALLING_ERROR,
GLib.Error(error))
stops = []
n_segments = gradient.get_number_of_segments()
last_stop = None
for index in range(n_segments):
lcolor = gradient.segment_get_left_color(index)
rcolor = gradient.segment_get_right_color(index)
success, lpos = gradient.segment_get_left_pos(index)
success, rpos = gradient.segment_get_right_pos(index)
if lcolor != None and rcolor != None:
lr, lg, lb, la = lcolor.get_rgba()
rr, rg, rb, ra = rcolor.get_rgba()
lstop = color_to_html(lr, lg, lb) + " %d%%" % int(100 * lpos)
if lstop != last_stop:
stops.append(lstop)
rstop = color_to_html(rr, rg, rb) + " %d%%" % int(100 * rpos)
stops.append(rstop)
last_stop = rstop
final_text = w3c_template % ", ".join(stops)
success, etag = file.replace_contents(bytes(format_text(final_text), encoding='utf-8'),
etag=None,
make_backup=False,
flags=Gio.FileCreateFlags.REPLACE_DESTINATION,
cancellable=None)
if success:
return procedure.new_return_values(Gimp.PDBStatusType.SUCCESS, GLib.Error())
else:
return procedure.new_return_values(Gimp.PDBStatusType.EXECUTION_ERROR,
GLib.Error('File saving failed: {}'.format(file.get_path())))
class GradientsSaveAsCSS (Gimp.PlugIn):
## GimpPlugIn virtual methods ##
def do_set_i18n(self, procname):
return True, 'gimp30-python', None
def do_query_procedures(self):
return [ 'python-fu-gradient-save-as-css' ]
def do_create_procedure(self, name):
procedure = Gimp.Procedure.new(self, name,
Gimp.PDBProcType.PLUGIN,
gradient_css_save, None)
if name == 'python-fu-gradient-save-as-css':
procedure.set_documentation (_("Creates a new palette from a given gradient"),
_("Creates a new palette from a given gradient"),
name)
procedure.set_menu_label(_("Save Gradient as CSS..."))
procedure.set_attribution("Joao S. O. Bueno",
"(c) GPL V3.0 or later",
"2011")
procedure.add_menu_path('<Gradients>/Gradients Menu')
procedure.add_enum_argument ("run-mode", _("Run mode"),
_("The run mode"), Gimp.RunMode,
Gimp.RunMode.NONINTERACTIVE,
GObject.ParamFlags.READWRITE)
procedure.add_gradient_argument ("gradient", _("_Gradient to use"),
"", True,
None, True, # Default to context.
GObject.ParamFlags.READWRITE)
procedure.add_file_argument ("file", _("_File"), "",
Gimp.FileChooserAction.SAVE,
False, None, GObject.ParamFlags.READWRITE)
return procedure
Gimp.main(GradientsSaveAsCSS.__gtype__, sys.argv)
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