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feat: support custom highlight blending

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Example:

```
{
	highlight_groups = {
		StatusLine = { bg = 'love', blend = 10 }
	}
}
```
This commit is contained in:
mvllow 2023-01-08 16:13:02 -05:00
commit 93c760b393
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3 changed files with 20 additions and 10 deletions
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8
lua/rose-pine/theme.lua
View file

@ -1,5 +1,3 @@
local blend = require('rose-pine.util').blend
local M = {}
function M.get(config)
@ -29,10 +27,10 @@ function M.get(config)
CursorLineNr = { fg = p.text },
DarkenedPanel = { bg = groups.panel },
DarkenedStatusline = { bg = groups.panel },
DiffAdd = { bg = blend(groups.git_add, groups.background, 0.2) },
DiffAdd = { bg = groups.git_add, blend = 20 },
DiffChange = { bg = p.overlay },
DiffDelete = { bg = blend(groups.git_delete, groups.background, 0.2) },
DiffText = { bg = blend(groups.git_text, groups.background, 0.2) },
DiffDelete = { bg = groups.git_delete, blend = 20 },
DiffText = { bg = groups.git_text, blend = 20 },
diffAdded = { link = 'DiffAdd' },
diffChanged = { link = 'DiffChange' },
diffRemoved = { link = 'DiffDelete' },

16
lua/rose-pine/util.lua
View file

@ -33,11 +33,11 @@ end
---@param bg string background color
---@param alpha number number between 0 (background) and 1 (foreground)
util.blend = function(fg, bg, alpha)
fg = rgb(parse_color(fg))
bg = rgb(parse_color(bg))
local fg_rgb = rgb(parse_color(fg))
local bg_rgb = rgb(parse_color(bg))
local function blend_channel(i)
local ret = (alpha * fg[i] + ((1 - alpha) * bg[i]))
local ret = (alpha * fg_rgb[i] + ((1 - alpha) * bg_rgb[i]))
return math.floor(math.min(math.max(0, ret), 255) + 0.5)
end
@ -50,12 +50,20 @@ util.blend = function(fg, bg, alpha)
end
---@param group string
---@param color table<string, string>
---@param color table<string, any>
util.highlight = function(group, color)
local fg = color.fg and parse_color(color.fg) or 'none'
local bg = color.bg and parse_color(color.bg) or 'none'
local sp = color.sp and parse_color(color.sp) or ''
if
color.blend ~= nil
and (color.blend >= 0 or color.blend <= 100)
and bg ~= nil
then
bg = util.blend(bg, parse_color('base') or '', color.blend / 100)
end
color = vim.tbl_extend('force', color, { fg = fg, bg = bg, sp = sp })
vim.api.nvim_set_hl(0, group, color)
end

6
readme.md
View file

@ -85,7 +85,11 @@ require('rose-pine').setup({
-- Change specific vim highlight groups
highlight_groups = {
ColorColumn = { bg = 'rose' }
ColorColumn = { bg = 'rose' },
-- Blend colours against the "base" background
CursorLine = { bg = 'foam', blend = 10 },
StatusLine = { fg = 'love', bg = 'love', blend = 10 },
}
})