added tabnumbers.lua

1 files changed, 27 insertions, 0 deletions

diff --git a/plugins/tabnumbers.lua b/plugins/tabnumbers.lua
new file mode 100644
index 0000000..deabbcd
--- /dev/null
+++ b/plugins/tabnumbers.lua
@@ -0,0 +1,27 @@
+local common = require "core.common"
+local core = require "core"
+local style = require "core.style"
+
+-- quite hackish, but Node isn't normally public
+local Node = getmetatable(core.root_view.root_node)
+local draw_tabs = Node.draw_tabs
+
+function Node:draw_tabs(...)
+  draw_tabs(self, ...)
+
+  for i, view in ipairs(self.views) do
+    if i > 9 then break end
+
+    local x, y, w, h = self:get_tab_rect(i)
+    local number = tostring(i)
+    local color = style.dim
+    local title_width = style.font:get_width(view:get_name())
+    local free_real_estate =
+      math.min(math.max((w - title_width) / 2, style.padding.x), h)
+    if view == self.active_view then
+      color = style.accent
+    end
+    -- renderer.draw_rect(x, y + h - 1, free_real_estate, 1, color)
+    common.draw_text(style.font, color, tostring(i), "center", x, y, free_real_estate, h)
+  end
+end