Add a new arrow based item style

item/style/arrow_3d.lua

@@ -0,0 +1,97 @@
+local setmetatable = setmetatable
+local print  = print
+local pairs  = pairs
+local color  = require( "gears.color"  )
+local base   = require( "radical.base" )
+
+local module = {
+  margins = {
+    TOP    = 2,
+    BOTTOM = 2,
+    RIGHT  = 2,
+    LEFT   = 4
+  }
+}
+
+local function create_path(cr,x,height)
+  cr:move_to(x-height/2,0)
+  cr:line_to(x+0,height/2)
+  cr:line_to(x-height/2,height)
+end
+
+
+local c1 = color("#474e56dd")
+local c2 = color("#5b646cdd")
+local c3 = color("#212429dd")
+local c4 = color("#3b4249dd")
+
+local function widget_draw23(self, w, cr, width, height)
+  self.background = nil
+  self.__drawbasic(self,w, cr, width, height)
+  local overlay = self._item and self._item.overlay
+  if overlay then
+    overlay(self._item._menu,self._item,cr,width,height)
+  end
+  cr:save()
+  cr:reset_clip()
+  cr:set_line_width(1)
+  -- Step 1: Paint the background
+  create_path(cr,0,height)
+  cr:line_to(width-height/2,height)
+  cr:line_to(width,height/2)
+  cr:line_to(width-height/2,0)
+  cr:close_path()
+  cr:set_source(self.radical_bg)
+  cr:fill()
+
+  -- Step 2: Paint the border
+  cr:set_source(c1)
+  create_path(cr,-2,height)
+  cr:stroke()
+
+  cr:set_source(c2)
+  create_path(cr,-1,height)
+  cr:stroke()
+
+  cr:set_source(c3)
+  create_path(cr,0,height)
+  cr:stroke()
+
+  cr:set_source(c4)
+  create_path(cr,1,height)
+  cr:stroke()
+  cr:restore()
+end
+
+local function new_set_bg(self,bg)
+  self.radical_bg = color(bg)
+end
+
+local function draw(item,args)
+  local args = args or {}
+
+  if not item.widget._overlay_init and not item.widget._draw then
+    item.widget.__drawbasic = item.widget.draw
+    item.widget.draw = widget_draw23
+    item.widget._overlay_init = true
+    item.widget.set_bg = new_set_bg
+  end
+
+  local state = item.state or {}
+  local current_state = state._current_key or nil
+  local state_name = base.colors_by_id[current_state]
+
+  if current_state == base.item_flags.SELECTED or (item._tmp_menu) then
+    item.widget:set_bg(item.bg_focus)
+    item.widget:set_fg(item.fg_focus)
+  elseif state_name then
+    item.widget:set_bg(args.color or item["bg_"..state_name])
+    item.widget:set_fg(              item["fg_"..state_name])
+  else
+    item.widget:set_bg(args.color or nil)
+    item.widget:set_fg(item["fg"])
+  end
+end
+
+return setmetatable(module, { __call = function(_, ...) return draw(...) end })
+-- kate: space-indent on; indent-width 2; replace-tabs on;

item/style/init.lua

@@ -10,5 +10,6 @@ return {
     arrow_alt    = require("radical.item.style.arrow_alt"    ),
     arrow_prefix = require("radical.item.style.arrow_prefix" ),
     arrow_single = require("radical.item.style.arrow_single" ),
+    arrow_3d     = require("radical.item.style.arrow_3d"     ),
     slice_prefix = require("radical.item.style.slice_prefix" ),
 }