Files
lua-scripts-w-api/contrib/harmonic_armature_guide.lua
2021-08-15 22:43:13 +02:00

78 lines
2.1 KiB
Lua

--[[
harmonic artmature guide for darktable
copyright (c) 2021 Hubert Kowalski
darktable 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.
darktable 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 darktable. If not, see <http://www.gnu.org/licenses/>.
]]
--[[
HARMONIC ARMATURE GUIDE
Harmonic Armature (also known as 14 line armature)
INSTALLATION
* copy this file in $CONFIGDIR/lua/contrib where CONFIGDIR is your darktable configuration directory
* add the following line in the file $CONFIGDIR/luarc
require "contrib/harmonic_armature_guide"
USAGE
* when using guides, select "harmonic armature" as guide
]]
local dt = require "darktable"
local du = require "lib/dtutils"
local gettext = dt.gettext
du.check_min_api_version("2.0.0", "harmonic_armature_guide")
-- Tell gettext where to find the .mo file translating messages for a particular domain
gettext.bindtextdomain("harmonic_armature_guide",dt.configuration.config_dir.."/lua/locale/")
local function _(msgid)
return gettext.dgettext("harmonic_armature_guide", msgid)
end
dt.guides.register_guide("harmonic armature",
-- draw
function(cairo, x, y, width, height, zoom_scale)
cairo:save()
cairo:translate(x, y)
cairo:scale(width, height)
cairo:move_to(0,0)
cairo:line_to(1, 0.5)
cairo:line_to(0.5, 1)
cairo:line_to(0,0)
cairo:line_to(1, 1)
cairo:line_to(0.5, 0)
cairo:line_to(0, 0.5)
cairo:line_to(1, 1)
cairo:move_to(1, 0)
cairo:line_to(0, 0.5)
cairo:line_to(0.5, 1)
cairo:line_to(1, 0)
cairo:line_to(0, 1)
cairo:line_to(0.5, 0)
cairo:line_to(1, 0.5)
cairo:line_to(0, 1)
cairo:restore()
end,
-- gui
function()
return dt.new_widget("label"){label = _("harmonic armature"), halign = "start"}
end
)