kanbanworkflowstimelinescrumrubyroadmapproject-planningproject-managementopenprojectangularissue-trackerifcgantt-chartganttbug-trackerboardsbcf
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.8 KiB
94 lines
2.8 KiB
#-- encoding: UTF-8
|
|
#-- copyright
|
|
# OpenProject is a project management system.
|
|
# Copyright (C) 2012-2018 the OpenProject Foundation (OPF)
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License version 3.
|
|
#
|
|
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
|
|
# Copyright (C) 2006-2017 Jean-Philippe Lang
|
|
# Copyright (C) 2010-2013 the ChiliProject Team
|
|
#
|
|
# 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.
|
|
#
|
|
# See docs/COPYRIGHT.rdoc for more details.
|
|
#++
|
|
|
|
class Color < ActiveRecord::Base
|
|
self.table_name = 'colors'
|
|
|
|
has_many :planning_element_types, class_name: 'Type',
|
|
foreign_key: 'color_id',
|
|
dependent: :nullify
|
|
|
|
before_validation :normalize_hexcode
|
|
|
|
validates_presence_of :name, :hexcode
|
|
|
|
validates_length_of :name, maximum: 255, unless: lambda { |e| e.name.blank? }
|
|
validates_format_of :hexcode, with: /\A#[0-9A-F]{6}\z/, unless: lambda { |e| e.hexcode.blank? }
|
|
|
|
##
|
|
# Returns the best contrasting color, either white or black
|
|
# depending on the overall brightness.
|
|
def contrasting_color(light_color: '#FFFFFF', dark_color: '#333333')
|
|
if bright?
|
|
dark_color
|
|
else
|
|
light_color
|
|
end
|
|
end
|
|
|
|
##
|
|
# Returns whether the color is bright according to
|
|
# YIQ lightness.
|
|
def bright?
|
|
brightness_yiq >= 128
|
|
end
|
|
|
|
##
|
|
# Sum the color values of each channel
|
|
# Same as in frontend color-contrast.functions.ts
|
|
def brightness_yiq
|
|
r, g, b = rgb_colors
|
|
((r * 299) + (g * 587) + (b * 114)) / 1000;
|
|
end
|
|
|
|
##
|
|
# Splits the hexcode into rbg color array
|
|
def rgb_colors
|
|
hexcode
|
|
.gsub('#', '') # Remove trailing #
|
|
.scan(/../) # Pair hex chars
|
|
.map { |c| c.hex } # to int
|
|
end
|
|
|
|
protected
|
|
|
|
def normalize_hexcode
|
|
if hexcode.present? and hexcode_changed?
|
|
self.hexcode = hexcode.strip.upcase
|
|
|
|
unless hexcode.starts_with? '#'
|
|
self.hexcode = '#' + hexcode
|
|
end
|
|
|
|
if hexcode.size == 4 # =~ /#.../
|
|
self.hexcode = hexcode.gsub(/([^#])/, '\1\1')
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|