lite-xl/data/core/emptyview.lua

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local style = require "core.style"
local keymap = require "core.keymap"
local View = require "core.view"
---@class core.emptyview : core.view
---@field super core.view
local EmptyView = View:extend()
local function draw_text(x, y, color)
local lines = {
{ fmt = "%s to run a command", cmd = "core:find-command" },
{ fmt = "%s to open a file from the project", cmd = "core:find-file" },
{ fmt = "%s to change project folder", cmd = "core:change-project-folder" },
{ fmt = "%s to open a project folder", cmd = "core:open-project-folder" },
}
local th = style.big_font:get_height()
local dh = 2 * th + style.padding.y * 2
local x1, y1 = x, y + ((dh - th) / #lines)
local xv = x1
local title = "Lite XL"
local version = "version " .. VERSION
local title_width = style.big_font:get_width(title)
local version_width = style.font:get_width(version)
if version_width > title_width then
version = VERSION
version_width = style.font:get_width(version)
xv = x1 - (version_width - title_width)
end
x = renderer.draw_text(style.big_font, title, x1, y1, color)
renderer.draw_text(style.font, version, xv, y1 + th, color)
x = x + style.padding.x
renderer.draw_rect(x, y, math.ceil(1 * SCALE), dh, color)
th = style.font:get_height()
y = y + (dh - (th + style.padding.y) * #lines) / 2
local w = 0
for _, line in ipairs(lines) do
local text = string.format(line.fmt, keymap.get_binding(line.cmd))
w = math.max(w, renderer.draw_text(style.font, text, x + style.padding.x, y, color))
y = y + th + style.padding.y
end
return w, dh
end
function EmptyView:draw()
self:draw_background(style.background)
local w, h = draw_text(0, 0, { 0, 0, 0, 0 })
local x = self.position.x + math.max(style.padding.x, (self.size.x - w) / 2)
local y = self.position.y + (self.size.y - h) / 2
draw_text(x, y, style.dim)
end
return EmptyView