102 lines
2.4 KiB
Lua
102 lines
2.4 KiB
Lua
local util = require 'Trans'.util
|
|
|
|
---@class TransNode
|
|
---@field [1] string text to be rendered
|
|
---@field render fun(self: TransNode, buffer: TransBuffer, line: number, col: number) render the node
|
|
|
|
|
|
---@class TransItem : TransNode
|
|
local item_meta = {
|
|
---@param self TransItem
|
|
---@param buffer TransBuffer
|
|
---@param line integer
|
|
---@param col integer
|
|
render = function(self, buffer, line, col)
|
|
if self[2] then
|
|
buffer:add_highlight(line, self[2], col, col + #self[1])
|
|
end
|
|
end,
|
|
}
|
|
|
|
---@class TransText : TransNode
|
|
---@field step string
|
|
---@field nodes TransNode[]
|
|
local text_meta = {
|
|
---@param self TransText
|
|
---@param buffer TransBuffer
|
|
---@param line integer
|
|
---@param col integer
|
|
render = function(self, buffer, line, col)
|
|
local nodes = self.nodes
|
|
local step = self.step
|
|
local len = step and #step or 0
|
|
|
|
for _, node in ipairs(nodes) do
|
|
node:render(buffer, line, col)
|
|
col = col + #node[1] + len
|
|
end
|
|
end,
|
|
}
|
|
|
|
item_meta.__index = item_meta
|
|
text_meta.__index = text_meta
|
|
|
|
|
|
---Basic item node
|
|
---@param tuple {[1]: string, [2]: string?}
|
|
---@return TransItem
|
|
local function item(tuple)
|
|
return setmetatable(tuple, item_meta)
|
|
end
|
|
|
|
|
|
|
|
---@param nodes {[number]: TransNode, step: string?}
|
|
---@return TransText
|
|
local function text(nodes)
|
|
return setmetatable({
|
|
[1] = table.concat(util.list_fields(nodes, 1), nodes.step),
|
|
step = nodes.step,
|
|
nodes = nodes,
|
|
}, text_meta)
|
|
end
|
|
|
|
|
|
---@param args {[number]: TransNode, width: integer, spin: string?}
|
|
---@return TransText
|
|
local function format(args)
|
|
local width = args.width
|
|
local spin = args.spin or ' '
|
|
local size = #args
|
|
local wid = 0
|
|
for i = 1, size do
|
|
wid = wid + args[i][1]:width()
|
|
end
|
|
|
|
local space = math.max(math.floor((width - wid) / (size - 1)), 0)
|
|
args.step = spin:rep(space)
|
|
args.width = nil
|
|
args.spin = nil
|
|
|
|
---@diagnostic disable-next-line: param-type-mismatch
|
|
return text(args)
|
|
end
|
|
|
|
---@class TransUtil
|
|
---@field node TransNodes
|
|
|
|
|
|
---@class TransNodes
|
|
return {
|
|
item = item,
|
|
text = text,
|
|
format = format,
|
|
conjunction = function(str)
|
|
return {
|
|
item { '', 'TransTitleRound' },
|
|
item { str, 'TransTitle' },
|
|
item { '', 'TransTitleRound' },
|
|
}
|
|
end,
|
|
}
|