201 lines
6.0 KiB
Lua
201 lines
6.0 KiB
Lua
--[[
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ICTA Controller
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===============
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Part of the SmartLine mod
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Copyright (C) 2017-2020 Joachim Stolberg
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AGPL v3
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See LICENSE.txt for more information
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submenu.lua
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A sub-menu control to generate a formspec sting for conditions and actions
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]]--
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local sl = smartline
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local function index(list, x)
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for idx, v in ipairs(list) do
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if v == x then return idx end
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end
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return nil
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end
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-- generate the choice dependent part of the form
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local function add_controls_to_table(tbl, kvDefinition, kvSelect)
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local val = ""
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local offs = 1.4
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if kvDefinition[kvSelect.choice] then
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local lControls = kvDefinition[kvSelect.choice].formspec
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for idx,elem in ipairs(lControls) do
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if elem.type == "label" then
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tbl[#tbl+1] = "label[0,"..offs..";Description:\n"..elem.label.."]"
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offs = offs + 0.4
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elseif elem.label and elem.label ~= "" then
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tbl[#tbl+1] = "label[0,"..offs..";"..elem.label..":]"
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offs = offs + 0.4
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end
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if elem.type == "numbers" or elem.type == "digits" or elem.type == "letters"
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or elem.type == "ascii" then
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val = kvSelect[elem.name] or elem.default
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tbl[#tbl+1] = "field[0.3,"..(offs+0.2)..";8,1;"..elem.name..";;"..val.."]"
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offs = offs + 0.9
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elseif elem.type == "textlist" then
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local l = elem.choices:split(",")
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val = index(l, kvSelect[elem.name]) or elem.default
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tbl[#tbl+1] = "dropdown[0.0,"..(offs)..";8.5,1.4;"..elem.name..";"..elem.choices..";"..val.."]"
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offs = offs + 0.9
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end
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end
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end
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return tbl
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end
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local function default_data(kvDefinition, kvSelect)
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local lControls = kvDefinition[kvSelect.choice].formspec
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for idx,elem in ipairs(lControls) do
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kvSelect[elem.name] = elem.default
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end
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kvSelect.button = kvDefinition[kvSelect.choice].button(kvSelect)
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return kvSelect
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end
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-- Copy field/formspec data to the table kvSelect
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-- kvDefinition: submenu formspec definition
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-- kvSelect: form data
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-- fields: formspec input
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local function field_to_kvSelect(kvDefinition, kvSelect, fields)
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local error = false
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local lControls = kvDefinition[kvSelect.choice].formspec
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for idx,elem in ipairs(lControls) do
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if elem.type == "numbers" then
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if fields[elem.name] then
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if fields[elem.name]:find("^[%d ]+$") then
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kvSelect[elem.name] = fields[elem.name]
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else
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kvSelect[elem.name] = elem.default
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error = true
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end
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end
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elseif elem.type == "digits" then -- including positions
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if fields[elem.name] then
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if fields[elem.name]:find("^[+%%-,%d]+$") then
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kvSelect[elem.name] = fields[elem.name]
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else
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kvSelect[elem.name] = elem.default
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error = true
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end
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end
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elseif elem.type == "letters" then
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if fields[elem.name] then
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if fields[elem.name]:find("^[+-]?%a+$") then
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kvSelect[elem.name] = fields[elem.name]
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else
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kvSelect[elem.name] = elem.default
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error = true
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end
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end
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elseif elem.type == "ascii" then
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if fields[elem.name] then
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kvSelect[elem.name] = fields[elem.name]
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end
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elseif elem.type == "textlist" then
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if fields[elem.name] ~= nil then
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kvSelect[elem.name] = fields[elem.name]
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end
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end
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end
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-- store user input of button text
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if fields._button_ then
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kvSelect._button_ = fields._button_
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end
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-- select button text
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if error then
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kvSelect.button = "invalid"
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elseif kvSelect._button_ and kvSelect._button_ ~= "" then
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kvSelect.button = kvSelect._button_
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else
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kvSelect.button = kvDefinition[kvSelect.choice].button(kvSelect)
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end
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return kvSelect
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end
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function smartline.submenu_verify(kvDefinition, kvSelect)
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local error = false
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local lControls = kvDefinition[kvSelect.choice].formspec
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for idx,elem in ipairs(lControls) do
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if elem.type == "numbers" then
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if not kvSelect[elem.name]:find("^[%d ]+$") then
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error = true
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end
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elseif elem.type == "digits" then -- including positions
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if not kvSelect[elem.name]:find("^[+%%-,%d]+$") then
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error = true
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end
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elseif elem.type == "letters" then
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if not kvSelect[elem.name]:find("^[+-]?%a+$") then
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error = true
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end
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elseif elem.type == "ascii" then
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if kvSelect[elem.name] == "" or kvSelect[elem.name] == nil then
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error = true
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end
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elseif elem.type == "textlist" then
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if kvSelect[elem.name] == "" or kvSelect[elem.name] == nil then
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error = true
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end
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end
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end
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return (error == false)
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end
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-- generate a formspec string from the given control definition
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-- row, col: numbers to identify the control
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-- title: Title text for the control
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-- lKeys: list of keywords of selected choices according to fields
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-- lChoice: list of possible choices for the control
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-- kvDefinition: definitions of the choice dependent controls
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-- kvSelect: data of the last selected item {choice, number, value, ...}
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function smartline.submenu_generate_formspec(row, col, title, lKeys, lChoice, kvDefinition, kvSelect)
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if kvSelect == nil or next(kvSelect) == nil then
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kvSelect = {choice = "default"}
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end
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local tbl = {"size[8.2,9]"..
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default.gui_bg..
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default.gui_bg_img..
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default.gui_slots..
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"field[0,0;0,0;_row_;;"..row.."]"..
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"field[0,0;0,0;_col_;;"..col.."]"}
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local sChoice = table.concat(lChoice, ",")
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local idx = index(lKeys, kvSelect.choice) or 1
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tbl[#tbl+1] = "label[0,0;"..title..":]"
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tbl[#tbl+1] = "dropdown[0,0.5;8.5,1;choice;"..sChoice..";"..idx.."]"
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tbl = add_controls_to_table(tbl, kvDefinition, kvSelect)
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tbl[#tbl+1] = "field[0.2,8.7;4,1;_button_;Alternative button text;"..(kvSelect._button_ or "").."]"
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tbl[#tbl+1] = "button[4,8.4;2,1;_cancel_;cancel]"
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tbl[#tbl+1] = "button[6,8.4;2,1;_exit_;ok]"
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return table.concat(tbl)
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end
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-- return the selected and configured menu item based on user inputs (fields)
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function smartline.submenu_eval_input(kvDefinition, lKeys, lChoice, kvSelect, fields)
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-- determine selected choice
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if fields.choice then
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-- load with default values
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local idx = index(lChoice, fields.choice) or 1
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kvSelect = {choice = lKeys[idx]}
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kvSelect = default_data(kvDefinition, kvSelect)
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kvSelect = field_to_kvSelect(kvDefinition, kvSelect, fields)
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else
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-- add real data
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kvSelect = field_to_kvSelect(kvDefinition, kvSelect, fields)
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end
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return kvSelect
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end
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