38 lines
1.2 KiB
Lua
38 lines
1.2 KiB
Lua
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local common = require "core.common"
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local config = require "core.config"
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local style = require "core.style"
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local DocView = require "core.docview"
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local command = require "core.command"
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-- originally written by luveti
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config.whitespace_map = { [" "] = "·", ["\t"] = "»" }
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config.draw_whitespace = true
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local draw_line_text = DocView.draw_line_text
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function DocView:draw_line_text(idx, x, y)
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draw_line_text(self, idx, x, y)
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if not config.draw_whitespace then return end
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local text = self.doc.lines[idx]
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local tx, ty = x, y + self:get_line_text_y_offset()
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local font = self:get_font()
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local color = style.whitespace or style.syntax.comment
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local map = config.whitespace_map
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for chr in common.utf8_chars(text) do
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local rep = map[chr]
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if rep then
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renderer.draw_text(font, rep, tx, ty, color)
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end
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tx = tx + font:get_width(chr)
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end
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end
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command.add("core.docview", {
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["draw-whitespace:toggle"] = function() config.draw_whitespace = not config.draw_whitespace end,
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["draw-whitespace:disable"] = function() config.draw_whitespace = false end,
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["draw-whitespace:enable"] = function() config.draw_whitespace = true end,
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})
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