98 lines
2.7 KiB
Lua
98 lines
2.7 KiB
Lua
--[[
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harmonic artmature guide for darktable
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copyright (c) 2021 Hubert Kowalski
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darktable is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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darktable is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with darktable. If not, see <http://www.gnu.org/licenses/>.
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]]
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--[[
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HARMONIC ARMATURE GUIDE
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Harmonic Armature (also known as 14 line armature)
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INSTALLATION
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* copy this file in $CONFIGDIR/lua/contrib where CONFIGDIR is your darktable configuration directory
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* add the following line in the file $CONFIGDIR/luarc
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require "contrib/harmonic_armature_guide"
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USAGE
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* when using guides, select "harmonic armature" as guide
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]]
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local dt = require "darktable"
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local du = require "lib/dtutils"
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local gettext = dt.gettext.gettext
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du.check_min_api_version("2.0.0", "harmonic_armature_guide")
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local function _(msgid)
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return gettext(msgid)
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end
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local script_data = {}
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script_data.metadata = {
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name = _("harmonic armature guide"),
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purpose = _("harmonic artmature guide"),
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author = "Hubert Kowalski",
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help = "https://docs.darktable.org/lua/stable/lua.scripts.manual/scripts/contrib/harmonic_armature_guide"
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}
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script_data.destroy = nil -- function to destory the script
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script_data.destroy_method = nil -- set to hide for libs since we can't destroy them commpletely yet, otherwise leave as nil
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script_data.restart = nil -- how to restart the (lib) script after it's been hidden - i.e. make it visible again
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script_data.show = nil -- only required for libs since the destroy_method only hides them
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dt.guides.register_guide("harmonic armature",
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-- draw
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function(cairo, x, y, width, height, zoom_scale)
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cairo:save()
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cairo:translate(x, y)
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cairo:scale(width, height)
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cairo:move_to(0,0)
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cairo:line_to(1, 0.5)
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cairo:line_to(0.5, 1)
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cairo:line_to(0,0)
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cairo:line_to(1, 1)
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cairo:line_to(0.5, 0)
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cairo:line_to(0, 0.5)
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cairo:line_to(1, 1)
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cairo:move_to(1, 0)
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cairo:line_to(0, 0.5)
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cairo:line_to(0.5, 1)
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cairo:line_to(1, 0)
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cairo:line_to(0, 1)
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cairo:line_to(0.5, 0)
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cairo:line_to(1, 0.5)
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cairo:line_to(0, 1)
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cairo:restore()
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end,
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-- gui
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function()
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return dt.new_widget("label"){label = _("harmonic armature"), halign = "start"}
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end
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)
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local function destroy()
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-- nothing to destroy
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end
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script_data.destroy = destroy
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return script_data
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