Added plugin `lineguide`

1 files changed, 18 insertions, 0 deletions

diff --git a/plugins/lineguide.lua b/plugins/lineguide.lua
new file mode 100644
index 0000000..fc24567
--- /dev/null
+++ b/plugins/lineguide.lua
@@ -0,0 +1,18 @@
+local config = require "core.config"
+local style = require "core.style"
+local DocView = require "core.docview"
+
+local draw = DocView.draw
+
+function DocView:draw(...)
+  draw(self, ...)
+
+  local offset = self:get_font():get_width("n") * config.line_limit
+  local x = self:get_line_screen_position(1) + offset
+  local y = self.position.y
+  local w = math.ceil(SCALE * 1)
+  local h = self.size.y
+
+  local color = style.guide or style.selection
+  renderer.draw_rect(x, y, w, h, color)
+end