Store presets for own custom Lua widget

Tobias · January 25, 2024, 10:36am

I think dt.preferences.read and write should work, have a look at this script:

darktable-org/lua-scripts/blob/master/contrib/ext_editor.lua#L115


      
          local MAX_EDITORS = 9
          
          -- number of valid entries in the list of external programs
          local n_entries
          
          
          -- allowed file extensions for external editors
          local allowed_file_types = {"JPG", "jpg", "JPEG", "jpeg", "TIF", "tif", "TIFF", "tiff", "EXR", "exr", "PNG", "png"}
          
          
          -- last used editor initialization
          if not dt.preferences.read(MODULE_NAME, "initialized", "bool") then
            dt.preferences.write(MODULE_NAME, "lastchoice", "integer", 0)
            dt.preferences.write(MODULE_NAME, "initialized", "bool", true)
          end 
          local lastchoice = 0
          
          
          -- update lists of program names and paths, as well as combobox ---------------
          local function UpdateProgramList(combobox, button_edit, button_edit_copy, update_button_pressed)