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-- mod-version:2 -- lite-xl 2.0
local core = require "core"
local common = require "core.common"
local command = require "core.command"
local config = require "core.config"
local keymap = require "core.keymap"
local style = require "core.style"
local RootView = require "core.rootview"
local CommandView = require "core.commandview"
config.plugins.scale = {
mode = "code",
use_mousewheel = true
}
local scale_steps = 0.05
local current_scale = SCALE
local default_scale = SCALE
local function set_scale(scale)
scale = common.clamp(scale, 0.2, 6)
-- save scroll positions
local scrolls = {}
for _, view in ipairs(core.root_view.root_node:get_children()) do
local n = view:get_scrollable_size()
if n ~= math.huge and not view:is(CommandView) and n > view.size.y then
scrolls[view] = view.scroll.y / (n - view.size.y)
end
end
local s = scale / current_scale
current_scale = scale
if config.plugins.scale.mode == "ui" then
SCALE = scale
style.padding.x = style.padding.x * s
style.padding.y = style.padding.y * s
style.divider_size = style.divider_size * s
style.scrollbar_size = style.scrollbar_size * s
style.caret_width = style.caret_width * s
style.tab_width = style.tab_width * s
for _, name in ipairs {"font", "big_font", "icon_font", "icon_big_font", "code_font"} do
style[name] = renderer.font.copy(style[name], s * style[name]:get_size())
end
else
style.code_font = renderer.font.copy(style.code_font, s * style.code_font:get_size())
end
for _, font in pairs(style.syntax_fonts) do
renderer.font.set_size(font, s * font:get_size())
end
for _, font in pairs(style.syntax_fonts) do
renderer.font.set_size(font, s * font:get_size())
end
-- restore scroll positions
for view, n in pairs(scrolls) do
view.scroll.y = n * (view:get_scrollable_size() - view.size.y)
view.scroll.to.y = view.scroll.y
end
core.redraw = true
end
local function get_scale()
return current_scale
end
local function res_scale()
set_scale(default_scale)
end
local function inc_scale()
set_scale(current_scale + scale_steps)
end
local function dec_scale()
set_scale(current_scale - scale_steps)
end
command.add(nil, {
["scale:reset" ] = function() res_scale() end,
["scale:decrease"] = function() dec_scale() end,
["scale:increase"] = function() inc_scale() end,
})
keymap.add {
["ctrl+0"] = "scale:reset",
["ctrl+-"] = "scale:decrease",
["ctrl+="] = "scale:increase",
["ctrl+wheelup"] = "scale:increase",
["ctrl+wheeldown"] = "scale:decrease"
}
return {
["set"] = set_scale,
["get"] = get_scale,
["increase"] = inc_scale,
["decrease"] = dec_scale,
["reset"] = res_scale
}
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