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-- mod-version:3
--[[
Author: techie-guy
Plugin to customize the caret in the editor
Thanks to @Guldoman for the initial example on Discord
Features
Change the Color and Opacity of the caret
Change the Shape of the caret, available shapes are Line, Block, Underline
Customizing the Caret: (this can be changed from the .config/lite-xl/init.lua
file or from the settings menu plugin)
config.plugins.custom_caret.shape - Change the shape of the caret [string]
style.caret - Change the rgba color of the caret [table]
Example Config(in the .config/lite-xl/init.lua)
style.caret = {0, 255, 255, 150}
config.plugins.custom_caret.shape = "block"
]]
local core = require "core"
local style = require "core.style"
local common = require "core.common"
local config = require "core.config"
local DocView = require "core.docview"
config.plugins.custom_caret = common.merge({
shape = "line",
custom_color = true,
caret_color = table.pack(table.unpack(style.caret)),
surrounding_chars = false,
}, config.plugins.custom_caret)
-- Reference to plugin config
local conf = config.plugins.custom_caret
-- Get real default caret color after everything is loaded up
core.add_thread(function()
if
conf.caret_color[1] == 147 and conf.caret_color[2] == 221
and
conf.caret_color[3] == 250 and conf.caret_color[4] == 255
and
(
style.caret[1] ~= conf.caret_color[1] or style.caret[2] ~= conf.caret_color[2]
or
style.caret[3] ~= conf.caret_color[3] or style.caret[4] ~= conf.caret_color[4]
)
then
conf.caret_color = table.pack(table.unpack(style.caret))
end
local settings_loaded, settings = pcall(require, "plugins.settings")
if settings_loaded then
conf.config_spec = {
name = "Custom Caret",
{
label = "Shape",
description = "The Shape of the cursor.",
path = "shape",
type = "selection",
default = "line",
values = {
{"Line", "line"},
{"Block", "block"},
{"Underline", "underline"}
}
},
{
label = "Custom Color",
description = "Use a custom color for the caret as specified below.",
path = "custom_color",
type = "toggle",
default = true
},
{
label = "Caret Color",
description = "Custom color of the caret.",
path = "caret_color",
type = "color",
default = table.pack(table.unpack(style.caret)),
},
{
label = "Surrounding Characters",
description = "When using block caret, whether you want to show the characters around for a better character switch.",
path = "surrounding_chars",
type ="toggle",
default = false,
},
}
---@cast settings plugins.settings
settings.ui:enable_plugin("custom_caret")
end
end)
local caret_idx = 1
local docview_update = DocView.update
function DocView:update()
docview_update(self)
caret_idx = 1
end
function DocView:draw_caret(x, y)
local caret_width = style.caret_width
local caret_height = self:get_line_height()
local current_caret_shape = conf.shape
local caret_color = conf.custom_color and conf.caret_color or style.caret
local font = self:get_font()
local line, col = self.doc:get_selection_idx(caret_idx)
local charw = math.ceil(font:get_width(self.doc:get_char(line, col)))
if (current_caret_shape == "block") then
caret_width = charw
elseif (current_caret_shape == "underline") then
caret_width = charw
caret_height = style.caret_width*2
y = y+self:get_line_height()
else
caret_width = style.caret_width
caret_height = self:get_line_height()
end
renderer.draw_rect(x, y, caret_width, caret_height, caret_color)
if current_caret_shape == "block" then
core.push_clip_rect(x, y, caret_width, caret_height)
local function draw_char(l, c)
l = common.clamp(l, 1, #self.doc.lines )
c = common.clamp(c, 1, #self.doc.lines[l])
local cx,cy = self:get_line_screen_position(l, c)
renderer.draw_text(
font, self.doc:get_char(l, c),
cx, cy+self:get_line_text_y_offset(),
style.background
)
end
if conf.surrounding_chars then
for yo=-1, 1 do
for xo=-1, 1 do
draw_char(line+xo, col+yo)
end
end
else
draw_char(line, col)
end
core.pop_clip_rect()
end
caret_idx = caret_idx + 1
end
|
