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Contents
# Copyright (C) 2014-2022 Ruby-GNOME Project Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
module Gdk
class RGBA
class << self
def parse(spec)
rgba = new
unless rgba.parse(spec)
available_formats = [
"COLOR_NAME",
"\#RGB",
"\#RRGGBB",
"\#RRRGGGBBB",
"\#RRRRGGGGBBBB",
"rgb(R, G, B)",
"rgba(R, G, B, A)",
]
message = "invalid RGBA format: #{spec.inspect} "
message << "(available formats: #{available_formats.join(', ')})"
raise ArgumentError, message
end
rgba
end
def try_convert(value)
case value
when String
parse(value)
when Symbol
parse(value.to_s)
else
nil
end
end
end
alias_method :initialize_raw, :initialize
def initialize(red=nil, green=nil, blue=nil, alpha=nil)
initialize_raw
self.red = red if red
self.green = green if green
self.blue = blue if blue
self.alpha = alpha || 1.0
end
def to_a
[red, green, blue, alpha]
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems