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https://github.com/rose-pine/neovim.git
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bf00df18af* feat: add WinBar and WinBarNC * feat: add new treesitter highlight groups * perf: parse necessary values upfront This commit no longer parses each highlight group, but rather user config values only. * fix: titles are no longer dynamically coloured Closes #216 #218 #219
47 lines
1.2 KiB
Lua
47 lines
1.2 KiB
Lua
local utilities = {}
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---@param color string
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local function color_to_rgb(color)
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local function byte(value, offset)
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return bit.band(bit.rshift(value, offset), 0xFF)
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end
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local new_color = vim.api.nvim_get_color_by_name(color)
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if new_color == -1 then
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new_color = vim.opt.background:get() == "dark" and 000 or 255255255
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end
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return { byte(new_color, 16), byte(new_color, 8), byte(new_color, 0) }
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end
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---@param color string Palette key or hex value
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function utilities.parse_color(color)
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if color == nil then
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return print("Invalid color: " .. color)
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end
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color = color:lower()
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if not color:find("#") and color ~= "NONE" then
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color = require("rose-pine.palette")[color] or vim.api.nvim_get_color_by_name(color)
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end
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return color
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end
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---@param fg string Foreground color
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---@param bg string Background color
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---@param alpha number Between 0 (background) and 1 (foreground)
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function utilities.blend(fg, bg, alpha)
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local fg_rgb = color_to_rgb(fg)
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local bg_rgb = color_to_rgb(bg)
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local function blend_channel(i)
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local ret = (alpha * fg_rgb[i] + ((1 - alpha) * bg_rgb[i]))
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return math.floor(math.min(math.max(0, ret), 255) + 0.5)
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end
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return string.format("#%02X%02X%02X", blend_channel(1), blend_channel(2), blend_channel(3))
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end
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return utilities
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