✨ feat(highlights): implement highlighting module

Highlighting module applies highlighting customizations and other font/color enhancements across several plugins

lua/config/autocmds.lua

@@ -47,3 +47,9 @@ vim.api.nvim_create_autocmd({ "BufEnter", "FocusGained" }, {
     )
   end,
 })
+
+-- Set up autocommands and highlight settings
+local load_highlight = require("config.highlight")
+-- load_highlight.setup_indent_highlight()
+load_highlight.setup_autocommands()
+load_highlight.setup_dashboard_highlight()

lua/config/highlight.lua

@@ -0,0 +1,242 @@
+local M = {}
+
+-- Function to convert RGB to hexadecimal
+local function rgb_to_hex(rgb)
+  return string.format("#%02x%02x%02x", rgb[1], rgb[2], rgb[3])
+end
+
+local function get_bg_color(hlgroup)
+  local hl = vim.api.nvim_get_hl(0, { name = hlgroup, link = false })
+  local bg = hl.bg
+  if bg then
+    return rgb_to_hex({
+      bit.rshift(bit.band(bg, 0xFF0000), 16),
+      bit.rshift(bit.band(bg, 0x00FF00), 8),
+      bit.band(bg, 0x0000FF),
+    })
+  end
+  return nil
+end
+
+local function get_fg_color(hlgroup)
+  local hl = vim.api.nvim_get_hl(0, { name = hlgroup, link = false })
+  local fg = hl.fg
+  if fg then
+    return rgb_to_hex({
+      bit.rshift(bit.band(fg, 0xFF0000), 16),
+      bit.rshift(bit.band(fg, 0x00FF00), 8),
+      bit.band(fg, 0x0000FF),
+    })
+  end
+  return nil
+end
+
+-- Function to set up indent highlights
+function M.setup_indent_highlight()
+  -- Get the background color of CursorLine
+  local cursorline_bg_hex = get_bg_color("CursorLine")
+
+  -- Get the foreground color of Error
+  local miniiconsred_fg_hex = get_fg_color("Error")
+
+  local hooks = require("ibl.hooks")
+  -- create the highlight groups in the highlight setup hook, so they are reset
+  -- every time the colorscheme changes
+  if cursorline_bg_hex then
+    -- Define custom highlight groups for indent using the CursorLine background color
+    hooks.register(hooks.type.HIGHLIGHT_SETUP, function()
+      vim.api.nvim_set_hl(
+        0,
+        "IndentBlanklineIndent",
+        { fg = cursorline_bg_hex, nocombine = true }
+      )
+      vim.api.nvim_set_hl(
+        0,
+        "IndentsScopeHighlight",
+        { fg = miniiconsred_fg_hex, nocombine = true }
+      )
+    end)
+  end
+
+  -- Configure the indent-blankline plugin
+  require("ibl").setup({
+    indent = {
+      char = {
+        "󰎤",
+        "󰎧",
+        "󰎪",
+        "󰎭",
+        "󰎱",
+        "󰎳",
+        "󰎶",
+        "󰎹",
+        "󰎼",
+        "󰽽",
+      },
+      highlight = {
+        "IndentBlanklineIndent",
+      },
+    },
+    scope = {
+      show_start = true,
+      highlight = {
+        "IndentsScopeHighlight",
+        "IndentsScopeHighlight",
+      },
+      char = "┋",
+    },
+    whitespace = {
+      remove_blankline_trail = true,
+    },
+    exclude = {
+      filetypes = {
+        "help",
+        "alpha",
+        "dashboard",
+        "neo-tree",
+        "Trouble",
+        "trouble",
+        "lazy",
+        "mason",
+        "notify",
+        "toggleterm",
+        "lazyterm",
+      },
+    },
+  })
+
+  -- Configure the deadcolumn plugin
+  require("deadcolumn").setup({
+    scope = "line", ---@type string|fun(): integer
+    modes = function(mode)
+      return mode:find("^[ictRss\x13]") ~= nil
+    end,
+    blending = {
+      threshold = 0.9,
+      colorcode = cursorline_bg_hex,
+      hlgroup = { "Normal", "bg" },
+    },
+    warning = {
+      alpha = 0.4,
+      offset = 0,
+      colorcode = miniiconsred_fg_hex,
+      hlgroup = { "Error", "bg" },
+    },
+    extra = {
+      follow_tw = "80",
+    },
+  })
+
+  -- Set colorcolumn
+  vim.cmd(":set colorcolumn=120")
+end
+
+function M.setup_mode_highlight()
+  local current_mode = vim.fn.mode()
+  local bg_color
+
+  if current_mode == "n" then
+    bg_color = get_bg_color("MiniStatuslineModeNormal")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "v" then
+    bg_color = get_bg_color("MiniStatuslineModeVisual")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "V" then
+    bg_color = get_bg_color("MiniStatuslineModeVisual")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "R" or current_mode == "r" then
+    bg_color = get_bg_color("MiniStatuslineModeReplace")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "i" then
+    bg_color = get_bg_color("MiniStatuslineModeInsert")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  else
+    bg_color = get_bg_color("MiniStatuslineModeNormal")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  end
+end
+
+function M.setup_dashboard_highlight()
+  if not vim.g.DashboardHeaderColor then
+    local dash_color = get_fg_color("Error")
+    vim.api.nvim_set_hl(0, "DashboardHeader", { fg = dash_color })
+  else
+    vim.api.nvim_set_hl(
+      0,
+      "DashboardHeader",
+      { fg = vim.g.DashboardHeaderColor }
+    )
+  end
+end
+
+-- Setup autocommands to update on InsertEnter and ColorScheme events
+function M.setup_autocommands()
+  local autogrp = vim.api.nvim_create_augroup
+  local autocmd = vim.api.nvim_create_autocmd
+  -- Autocommand to trigger setup on InsertEnter
+  autogrp("IndentHighlight", { clear = true })
+  autocmd("InsertEnter", {
+    group = "IndentHighlight",
+    callback = function()
+      M.setup_indent_highlight()
+    end,
+  })
+
+  -- Autocommand to trigger setup on ColorScheme
+  autocmd("ColorScheme", {
+    group = "IndentHighlight",
+    callback = function()
+      M.setup_indent_highlight()
+    end,
+  })
+
+  -- Autocommand to trigger setup on ModeChanged
+  autogrp("ModeHighlighting", { clear = true })
+  autocmd("ModeChanged", {
+    group = "ModeHighlighting",
+    callback = function()
+      M.setup_mode_highlight()
+    end,
+  })
+
+  -- Create a new augroup for the dashboard
+  local dashboardGroup = autogrp("DashboardColors", { clear = true })
+  -- Set the color for DashboardHeader when VimEnter event triggers
+  autocmd("CursorMoved", {
+    group = dashboardGroup,
+    callback = function()
+      M.setup_dashboard_highlight()
+    end,
+  })
+  -- Reapply highlights when the colorscheme changes
+  autocmd("ColorScheme", {
+    pattern = "*",
+    group = dashboardGroup,
+    callback = function()
+      M.setup_dashboard_highlight()
+    end,
+  })
+  -- Match neovim and terminal background colors
+  vim.api.nvim_create_autocmd({ "UIEnter", "ColorScheme" }, {
+    callback = function()
+      local normal = vim.api.nvim_get_hl(0, { name = "Normal" })
+      if not normal.bg then
+        return
+      end
+      io.write(string.format("\027]11;#%06x\027\\", normal.bg))
+    end,
+  })
+  vim.api.nvim_create_autocmd("UILeave", {
+    callback = function()
+      io.write("\027]111\027\\")
+    end,
+  })
+end
+
+return M

lua/config/options.lua

@@ -16,3 +16,6 @@ vim.g.usewakatime = true
 vim.g.usehardtime = false
 vim.g.useimage = true
 vim.o.background = "dark"
+
+vim.g.DashboardHeaderColor = "#A6E3A1"
+vim.g.mousemoveevent = true

lua/config/rootiest.lua

@@ -64,12 +64,50 @@ end
 
 -- Set cursor icons
 function M.set_cursor_icons()
-  vim.fn.sign_define("smoothcursor_n", { text = "" })
+  local function rgb_to_hex(rgb)
-  vim.fn.sign_define("smoothcursor_v", { text = "" })
+    return string.format("#%02x%02x%02x", rgb[1], rgb[2], rgb[3])
-  vim.fn.sign_define("smoothcursor_V", { text = "" })
+  end
-  vim.fn.sign_define("smoothcursor_i", { text = "" })
+
-  vim.fn.sign_define("smoothcursor_c", { text = "" })
+  local function get_bg_color(hlgroup)
-  vim.fn.sign_define("smoothcursor_R", { text = "󰊄" })
+    local hl = vim.api.nvim_get_hl(0, { name = hlgroup, link = false })
+    local bg = hl.bg
+    if bg then
+      return rgb_to_hex({
+        bit.rshift(bit.band(bg, 0xFF0000), 16),
+        bit.rshift(bit.band(bg, 0x00FF00), 8),
+        bit.band(bg, 0x0000FF),
+      })
+    end
+    return nil
+  end
+  local current_mode = vim.fn.mode()
+  local bg_color
+
+  if current_mode == "n" then
+    bg_color = get_bg_color("MiniStatuslineModeNormal")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "v" then
+    bg_color = get_bg_color("MiniStatuslineModeVisual")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "V" then
+    bg_color = get_bg_color("MiniStatuslineModeVisual")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "R" or current_mode == "r" then
+    bg_color = get_bg_color("MiniStatuslineModeReplace")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  elseif current_mode == "i" then
+    bg_color = get_bg_color("MiniStatuslineModeInsert")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  else
+    bg_color = get_bg_color("MiniStatuslineModeNormal")
+    vim.api.nvim_set_hl(0, "SmoothCursor", { fg = bg_color })
+    vim.fn.sign_define("smoothcursor", { text = "" })
+  end
 end
 
 -- Evaluate dependencies and print warnings if needed

lua/plugins/editor.lua

@@ -18,6 +18,14 @@ return {
   { -- Illuminate
     import = "lazyvim.plugins.extras.editor.illuminate",
   },
+  {
+    "akinsho/bufferline.nvim",
+    opts = {
+      options = {
+        separator_style = "slant",
+      },
+    },
+  },
   {
     "folke/flash.nvim",
     opts = {
@@ -28,25 +36,8 @@ return {
       },
     },
   },
-  {
+  { -- indent-blankline
     "lukas-reineke/indent-blankline.nvim",
-    opts = {
-      scope = { show_start = true, show_end = true },
-      indent = {
-        char = {
-          "󰎤",
-          "󰎧",
-          "󰎪",
-          "󰎭",
-          "󰎱",
-          "󰎳",
-          "󰎶",
-          "󰎹",
-          "󰎼",
-          "󰽽",
-        },
-      },
-    },
   },
   { -- Outline
     import = "lazyvim.plugins.extras.editor.outline",
@@ -96,7 +87,7 @@ return {
   },
   { -- CodeWindow
     "gorbit99/codewindow.nvim",
-    event = "InsertEnter",
+    event = "BufEnter",
     config = function()
       require("codewindow").setup({
         auto_enable = true,
@@ -128,32 +119,7 @@ return {
   },
   { -- DeadColumn
     "Bekaboo/deadcolumn.nvim",
-    event = "InsertEnter",
+    event = "BufEnter",
-    config = function()
-      require("deadcolumn").setup({
-        scope = "line", ---@type string|fun(): integer
-        ---@type string[]|fun(mode: string): boolean
-        modes = function(mode)
-          return mode:find("^[ictRss\x13]") ~= nil
-        end,
-        blending = {
-          threshold = 0.9,
-          colorcode = "#737895",
-          hlgroup = { "Normal", "bg" },
-        },
-        warning = {
-          alpha = 0.4,
-          offset = 0,
-          colorcode = "#f27b82",
-          hlgroup = { "Error", "bg" },
-        },
-        extra = {
-          ---@type string?
-          follow_tw = "80",
-        },
-      })
-      vim.cmd(":set colorcolumn=120")
-    end,
   },
   { -- Precognition
     "tris203/precognition.nvim",
@@ -168,11 +134,11 @@ return {
   },
   { -- SmoothCursor
     "gen740/SmoothCursor.nvim",
-    event = "InsertEnter",
+    event = "BufEnter",
-    lazy = true,
+    -- lazy = true,
     config = function()
-      ---@diagnostic disable-next-line: missing-parameter
+      ---@diagnostic disable-next-line: missing-fields
-      require("smoothcursor").setup()
+      require("smoothcursor").setup({})
     end,
   },
 }