Add 'visible_row_count' property get the number of visible items (total-filter-max)

margins.lua

@@ -0,0 +1,32 @@
+-- This helper module create a virtual margin object. This then used as a proxy
+-- between the real wibox.widget.margins and the Radical menu.
+
+local setmetatable = setmetatable
+local module = {}
+
+function module.create(widget,default)
+  local mt = setmetatable({merge = function(values)
+    if values.left then
+      widget:set_left(values.left)
+    end
+    if values.right then
+      widget:set_right(values.right)
+    end
+    if values.top then
+      widget:set_top(values.top)
+    end
+    if values.bottom then
+      widget:set_bottom(values.bottom)
+    end
+  end
+  },{__newindex = function(tab, key,value)
+    widget["set_"..key](widget,value)
+  end
+  ,__index=function(table,key)
+    return widget[key]
+  end}}
+  return mt
+end
+
+return module
+-- kate: space-indent on; indent-width 2; replace-tabs on;