101 lines
2.6 KiB
Lua
101 lines
2.6 KiB
Lua
-- mod-version:3
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local config = require "core.config"
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local common = require "core.common"
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local DocView = require "core.docview"
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config.plugins.colorpreview = common.merge({
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enabled = true,
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-- The config specification used by the settings gui
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config_spec = {
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name = "Color Preview",
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{
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label = "Enable",
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description = "Enable or disable the color preview feature.",
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path = "enabled",
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type = "toggle",
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default = true
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}
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}
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}, config.plugins.colorpreview)
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local white = { common.color "#ffffff" }
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local black = { common.color "#000000" }
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local tmp = {}
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-- Workaround for bug in Lite XL 2.1
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-- Remove this when b029f5993edb7dee5ccd2ba55faac1ec22e24609 is in a release
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local function get_selection(doc, sort)
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local line1, col1, line2, col2 = doc:get_selection_idx(doc.last_selection)
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if line1 then
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return doc:get_selection_idx(doc.last_selection, sort)
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else
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return doc:get_selection_idx(1, sort)
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end
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end
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local function draw_color_previews(self, line, x, y, ptn, base, nibbles)
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local text = self.doc.lines[line]
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local s, e = 0, 0
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while true do
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s, e = text:find(ptn, e + 1)
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if not s then break end
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local str = text:sub(s, e)
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local r, g, b, a = str:match(ptn)
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r, g, b = tonumber(r, base), tonumber(g, base), tonumber(b, base)
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a = tonumber(a or "", base)
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if a ~= nil then
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if base ~= 16 then
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a = a * 0xff
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end
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else
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a = 0xff
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end
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-- #123 becomes #112233
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if nibbles then
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r = r * 16
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g = g * 16
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b = b * 16
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end
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local x1 = x + self:get_col_x_offset(line, s)
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local x2 = x + self:get_col_x_offset(line, e + 1)
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local oy = self:get_line_text_y_offset()
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local text_color = math.max(r, g, b) < 128 and white or black
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tmp[1], tmp[2], tmp[3], tmp[4] = r, g, b, a
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local l1, _, l2, _ = get_selection(self.doc, true)
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if not (self.doc:has_selection() and line >= l1 and line <= l2) then
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renderer.draw_rect(x1, y, x2 - x1, self:get_line_height(), tmp)
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renderer.draw_text(self:get_font(), str, x1, y + oy, text_color)
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end
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end
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end
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local draw_line_text = DocView.draw_line_text
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function DocView:draw_line_text(line, x, y)
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local lh = draw_line_text(self, line, x, y)
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if config.plugins.colorpreview.enabled then
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draw_color_previews(self, line, x, y,
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"#(%x%x)(%x%x)(%x%x)(%x?%x?)%f[%W]",
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16
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)
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-- support #fff css format
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draw_color_previews(self, line, x, y, "#(%x)(%x)(%x)%f[%W]", 16, true)
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draw_color_previews(self, line, x, y,
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"rgba?%((%d+)%D+(%d+)%D+(%d+)[%s,]-([%.%d]-)%s-%)",
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nil
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)
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end
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return lh
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end
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