Basalt2/docs/references/elements/Menu.md

local VisualElement = require("elements/VisualElement") local List = require("elements/List") local tHex = require("libraries/colorHex")

---@class Menu : List local Menu = setmetatable({}, List) Menu.__index = Menu

Menu.defineProperty(Menu, "separatorColor", {default = colors.gray, type = "number"})

function Menu.new() local self = setmetatable({}, Menu):__init() self.set("width", 30) self.set("height", 1) self.set("background", colors.gray) return self end

function Menu:init(props, basalt) List.init(self, props, basalt) self.set("type", "Menu") return self end

function Menu:setItems(items) local listItems = {} local totalWidth = 0 for _, item in ipairs(items) do if item.separator then table.insert(listItems, {text = item.text or "|", selectable = false}) totalWidth = totalWidth + 1 else local text = " " .. item.text .. " " item.text = text table.insert(listItems, item) totalWidth = totalWidth + #text end end self.set("width", totalWidth) return List.setItems(self, listItems) end

function Menu:render() VisualElement.render(self) local currentX = 1

for i, item in ipairs(self.get("items")) do
    local isSelected = i == self.get("selectedIndex")

    local fg = item.selectable == false and self.get("separatorColor") or
        (isSelected and (item.selectedForeground or self.get("foreground")) or
        (item.foreground or self.get("foreground")))

    local bg = isSelected and
        (item.selectedBackground or self.get("selectedColor")) or
        (item.background or self.get("background"))

    self:blit(currentX, 1, item.text,
        string.rep(tHex[fg], #item.text),
        string.rep(tHex[bg], #item.text))

    currentX = currentX + #item.text
end

end

function Menu:mouse_click(button, x, y) if not VisualElement.mouse_click(self, button, x, y) then return false end if(self.get("selectable") == false) then return false end local relX = select(1, self:getRelativePosition(x, y)) local currentX = 1

for i, item in ipairs(self.get("items")) do
    if relX >= currentX and relX < currentX + #item.text then
        if item.selectable ~= false then
            self.set("selectedIndex", i)
            if type(item) == "table" then
                if item.callback then
                    item.callback(self)
                end
            end
            self:fireEvent("select", i, item)
        end
        return true
    end
    currentX = currentX + #item.text
end
return false

end

return Menu