overlay: Re-write for the new widget system

**WARNING**: this break the API
menu.overlay -> menu.draw_overlay

The new "overlay" behave like underlay, but is on top

This commit also add underlay/overlay "align" option and document
the feature properly.

README.md

@@ -190,6 +190,13 @@ Multiple items can have multiple sets of options.
 | filter_string       | Default filter string                              | string                        |
 | fkeys_prefix        | Display F1-F12 indicators for easy navigation      | boolean                       |
 | underlay_alpha      | Underlay (see item options) opacity                | 0-1                           |
+| underlay_style      | Underlay (see item options) opacity                |                               |
+| underlay_align      | Underlay alignment                                 | "left" or "center"            |
+| underlay_bg         | Fallback background color for missing states       | color/gradient/pattern        |
+| overlay_alpha       | Overlay (see item options) opacity                 | 0-1                           |
+| overlay_style       | Overlay (see item options) opacity                 |                               |
+| overlay_align       | Overlay alignment                                  | "left" or "center"            |
+| overlay_bg          | Fallback background color for missing states       | color/gradient/pattern        |
 | filter_prefix       | Text to be shown at begenning of the filter string | string                        |
 | max_items           | Maximum number of items before showing scrollbar   | number                        |
 | enable_keyboard     | Enable or disable keyboard navigation / hooks      | boolean                       |
@@ -211,7 +218,7 @@ Multiple items can have multiple sets of options.
 ###Item options
 
 |      Name      |                 Description                  |        Type        |
-| -------------- | -------------------------------------------- | ----------------- |
+| -------------- | -------------------------------------------- | ------------------ |
 | text           | The item text                                | string             |
 | height         | The item height                              | number             |
 | icon           | The item icon                                | string or pattern  |
@@ -232,6 +239,13 @@ Multiple items can have multiple sets of options.
 | button5        | Scroll down action                           | function           |
 | overlay        | See menu.overlay                             | function           |
 | margins        | Read/Write table (left,right,top and bottom) | dynamic table      |
+| underlay_alpha | Underlay (see item options) opacity          | 0-1                |
+| underlay_style | Underlay (see item options) opacity          |                    |
+| underlay_align | Underlay alignment                           | "left" or "center" |
+| overlay_alpha  | Overlay (see item options) opacity           | 0-1                |
+| overlay_style  | Overlay (see item options) opacity           |                    |
+| overlay_align  | Overlay alignment                            | "left" or "center" |
+| overlay_draw   | Draw a custom painter on top of the item     | draw function      |
 
 ###Colors options
 

base.lua

@@ -303,7 +303,7 @@ local function new(args)
   local internal = args.internal or {}
   if not internal.items then internal.items = {} end
   if not internal.widgets then internal.widgets = {} end
-print(beautiful.menu_border_color)
+
   -- All the magic in the universe
   local data,private_data = object({
     private_data = {
@@ -341,6 +341,13 @@ print(beautiful.menu_border_color)
       fkeys_prefix    = args.fkeys_prefix or false,
       underlay_alpha  = args.underlay_alpha or beautiful.underlay_alpha  or 0.7,
       underlay_style  = args.underlay_style or nil,
+      underlay_align  = args.underlay_align or nil,
+      underlay_bg     = args.underlay_bg or nil,
+      overlay_alpha   = args.overlay_alpha or beautiful.overlay_alpha  or 0.7,
+      overlay_style   = args.overlay_style or nil,
+      overlay_align   = args.overlay_align or nil,
+      overlay_draw    = args.overlay_draw or nil,
+      overlay_bg      = args.overlay_bg or nil,
       filter_underlay = args.filter_underlay or nil,
       filter_prefix   = args.filter_prefix or "Filter:",
       enable_keyboard = (args.enable_keyboard ~= false),
@@ -351,6 +358,7 @@ print(beautiful.menu_border_color)
       sub_menu_on     = args.sub_menu_on or module.event.SELECTED,
       select_on       = args.select_on or module.event.HOVER,
       overlay         = args.overlay or nil,
+      overlay_draw    = args.overlay_draw or nil,
       opacity         = args.opacity or beautiful.menu_opacity or 1,
       spacing         = args.spacing or nil, --TODO add to README once merged upstream
       default_margins = args.default_margins or {},

impl/common/tag.lua

@@ -65,13 +65,14 @@ function module.layouts(menu,layouts)
   local layouts = layouts or awful.layout.layouts or fallback_layouts
   for i, layout_real in ipairs(layouts) do
     local layout2 = awful.layout.getname(layout_real)
+    local is_current = cur and ((layout_real == cur) or (layout_real.name == cur.name))
     if layout2 and beautiful["layout_" ..layout2] then
       screenSelect:add_item({icon=beautiful["layout_" ..layout2],button1 = function(_,mod)
         if mod then
           screenSelect[mod[1] == "Shift" and "previous_item" or "next_item"].selected = true
         end
         awful.layout.set(layouts[screenSelect.current_index] or layouts[1],awful.tag.selected(capi.client.focus and capi.client.focus.screen))
-      end, selected = (layout_real == cur), item_layout = radical.item.layout.icon})
+      end, selected = is_current, item_layout = radical.item.layout.icon})
     end
   end
   return screenSelect

impl/tasklist/init.lua

@@ -156,7 +156,20 @@ local function create_client_item(c,screen)
 
   -- Too bad, let's create a new one
   local suf_w = wibox.layout.fixed.horizontal()
-  item = menu:add_item{text=c.name,icon=(not beautiful.tasklist_disable_icon) and surface(c.icon),suffix_widget=suf_w}
+
+  item = menu:add_item{
+    text=c.name,
+    icon=(not beautiful.tasklist_disable_icon) and surface(c.icon),
+    suffix_widget=suf_w
+  }
+
+  item:connect_signal("mouse::enter", function()
+    item.overlay = {"1:23:45", c.pid}
+  end)
+  item:connect_signal("mouse::leave", function()
+    item.overlay = nil
+  end)
+
   item.add_suffix = function(w,w2)
     suf_w:add(w2)
   end
@@ -248,6 +261,9 @@ local function new(screen)
     fg                   = beautiful.tasklist_fg                   or beautiful.fg_normal                ,
     bg                   = beautiful.tasklist_bg                   or beautiful.bg_normal                ,
     underlay_style       = beautiful.tasklist_underlay_style       or radical.widgets.underlay.draw_arrow,
+    overlay_align        = "center"                                                                      ,
+    overlay_alpha        = 1                                                                             ,
+    overlay_bg           = beautiful.tasklist_bg_overlay                                                 ,
     icon_transformation  = beautiful.tasklist_icon_transformation                                        ,
     default_item_margins = beautiful.tasklist_default_item_margins                                       ,
     default_margins      = beautiful.tasklist_default_margins                                            ,

item/init.lua

@@ -114,11 +114,10 @@ local function new_item(data,args)
       sub_menu_f  = (args.sub_menu   and type(args.sub_menu) == "function") and args.sub_menu or nil        ,
       checkable   = args.checkable   or (args.checked ~= nil) or false                                      ,
       checked     = args.checked     or false                                                               ,
-      underlay    = args.underlay    or nil                                                                 ,
       tooltip     = args.tooltip     or nil                                                                 ,
       style       = args.style       or data.item_style                                                     ,
       layout      = args.layout      or args.item_layout or nil                                             ,
-      overlay     = args.overlay     or data.overlay or nil                                                 ,
+      overlay_draw= args.overlay_draw or data.overlay_draw                                                  ,
       item_border_color = args.item_border_color or data.item_border_color or nil                           ,
     },
     force_private = {
@@ -146,19 +145,27 @@ local function new_item(data,args)
     return data.fg
   end
 
-  item.set_underlay = function(item,underlay)
+  -- Setup underlay and overlay
+  for k, name in ipairs {"underlay", "overlay"} do
+    item["set_"..name] = function(item,underlay)
       if not item._internal.underlay_init then
-      data:add_colors_group("underlay")
+        data:add_colors_group(name)
         item._internal.underlay_init = true
       end
 
-    item._internal.underlay_content = underlay
+      item._internal[name.."_content"] = underlay
     end
     item.get_underlay =  function(item)
       return item._internal.underlay_content
     end
+    item[name.."_alpha"] = args[name.."_alpha"]
+    item[name.."_style"] = args[name.."_style"]
+    item[name.."_align"] = args[name.."_align"]
+  end
+
   item.state         = theme.init_state(item)
   item.underlay = args.underlay
+  item.overlay  = args.overlay
 
   for i=1,10 do
     item["button"..i] = args["button"..i]

item/layout/horizontal.lua

@@ -28,17 +28,40 @@ function module:setup_fkey(item,data)
 end
 
 -- Like an overlay, but under
-function module.paint_underlay(data,item,cr,width,height)
+function module.paint_underlay(data,item,cr,width,height, name)
+  name = name or "underlay"
   cr:save()
   local state = item.state or {}
   local current_state = state._current_key or nil
   local state_name = theme.colors_by_id[current_state] or ""
-  local udl = underlay.draw(item.underlay,{style=data.underlay_style,height=height,bg=data["underlay_bg_"..state_name]})
+
+  local bg_color = item[name.."_bg_"..state_name] or data[name.."_bg_"..state_name] or data[name.."_bg"]
+  local style    = item[name.."_style"          ] or data[name.."_style"          ]
+  local alpha    = item[name.."_alpha"          ] or data[name.."_alpha"          ]
+  local align    = item[name.."_align"          ] or data[name.."_align"          ]
+
+  local udl = underlay.draw(item[name],{style=data.underlay_style,height=height,bg=bg_color, style = style})
+
+  if align == "center" then
+    local offset = (width-udl:get_width()-6)/2
+    cr:set_source_surface(udl,3 + offset)
+  else
     cr:set_source_surface(udl,width-udl:get_width()-3)
-  cr:paint_with_alpha(data.underlay_alpha)
+  end
+  cr:paint_with_alpha(data[name.."_alpha"])
   cr:restore()
 end
 
+function module.after_draw_children(self, context, cr, width, height)
+  if self._item.overlay then
+    module.paint_underlay(self._data, self._item, cr, width, height, "overlay")
+  end
+
+  if self._item.overlay_draw then
+    self._item.overlay_draw(context,self._item,cr,width,height)
+  end
+end
+
 -- Apply icon transformation
 function module.set_icon(self,image)
   if self._data.icon_transformation then
@@ -267,6 +290,7 @@ local function create_item(item,data,args)
   -- Set widget
   item.widget = bg
   bg._item    = item
+  bg._data    = data
 
   -- Tooltip
   item.widget:set_tooltip(item.tooltip)
@@ -299,6 +323,8 @@ local function create_item(item,data,args)
 --     bg:buttons(item.buttons)
 --   end
 
+  bg.after_draw_children = module.after_draw_children
+
   return bg
 end
 

item/layout/icon.lua

@@ -22,6 +22,12 @@ local function icon_fit(data,...)
 
 end
 
+local function after_draw_children(self, context, cr, width, height)
+  if self._item.overlay_draw then
+    self._item.overlay_draw(context,self._item,cr,width,height)
+  end
+end
+
 local function icon_draw(self, context, cr, width, height)
   local w,h = wibox.widget.imagebox.fit(self,context,width,height)
   cr:save()
@@ -122,6 +128,9 @@ local function create_item(item,data,args)
 
   item.widget = bg
 
+  bg._item = item
+  bg.after_draw_children = horizontal.after_draw_children
+
   return bg
 end
 

item/layout/notification.lua

@@ -27,18 +27,6 @@ function module:setup_fkey(item,data)
   item.get_f_key = function() return item._internal.f_key end
 end
 
--- Like an overlay, but under
-function module.paint_underlay(data,item,cr,width,height)
-  cr:save()
-  local state = item.state or {}
-  local current_state = state._current_key or nil
-  local state_name = theme.colors_by_id[current_state] or ""
-  local udl = underlay.draw(item.underlay,{style=data.underlay_style,height=height,bg=data["underlay_bg_"..state_name]})
-  cr:set_source_surface(udl,width-udl:get_width()-3)
-  cr:paint_with_alpha(data.underlay_alpha)
-  cr:restore()
-end
-
 -- Show the checkbox
 function module:setup_checked(item,data)
   if item.checkable then
@@ -209,7 +197,7 @@ local function create_item(item,data,args)
   local tb4 = wibox.widget.textbox()
   tb4.draw = function(self, context, cr, width, height)
     if item.underlay then
-      module.paint_underlay(data,item,cr,width,height)
+      horizontal.paint_underlay(data,item,cr,width,height)
     end
     wibox.widget.textbox.draw(self, context, cr, width, height)
   end

item/style/arrow_3d.lua

@@ -30,10 +30,6 @@ local padding = 1
 local p2 = 2
 
 local function widget_draw23(self, context, 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)

item/style/arrow_alt.lua

@@ -103,11 +103,6 @@ local function draw_real(self, context, cr, width, height)
   if self.widget.draw then
     self.widget:draw(context, cr, width, height)
   end
-
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/arrow_prefix.lua

@@ -50,10 +50,6 @@ end
 
 local function widget_draw(self, context, cr, width, height)
   self:_drawprefix(context, cr, width, height)
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/arrow_single.lua

@@ -32,10 +32,6 @@ local function suffix_draw(self, context, cr, width, height)
     wibox.widget.background.draw(self, context, cr, width, height)
   end
 
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
   cr:restore()
 end
 

item/style/basic.lua

@@ -17,11 +17,6 @@ local function widget_draw23(self, context, cr, width, height)
   if wibox.widget.background.draw then
     wibox.widget.background.draw(self, context, cr, width, height)
   end
-
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/classic.lua

@@ -33,11 +33,6 @@ local function widget_draw(self, context, cr, width, height)
   if wibox.widget.background.draw then
     wibox.widget.background.draw(self, context, cr, width, height)
   end
-
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/holo.lua

@@ -59,11 +59,6 @@ local function widget_draw(self, context, cr, width, height)
   if self._drawrounded then
     self:_drawrounded(context, cr, width, height)
   end
-
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/line_3d.lua

@@ -23,10 +23,6 @@ local function widget_draw(self, context, cr, width, height)
   cr:set_source(self.col2)
   cr:rectangle(width-1,3,1,height-6)
   cr:fill()
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/rounded.lua

@@ -73,11 +73,6 @@ local function widget_draw(self, context, cr, width, height,shadow)
   if wibox.widget.background.draw then
     wibox.widget.background.draw(self, context, cr, width, height)
   end
-
-  local overlay = item and item.overlay
-  if overlay then
-    overlay(item._menu,item,cr,width,height)
-  end
 end
 
 local function draw_width_shadow(self, context, cr, width, height)

item/style/slice_prefix.lua

@@ -51,11 +51,6 @@ local function widget_draw(self, context, cr, width, height)
   if self._drawprefix then
     self:_drawprefix(context, cr, width, height)
   end
-
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

item/style/subtle.lua

@@ -66,11 +66,6 @@ local function widget_draw(self, context, cr, width, height)
   if self._drawrounded then
     self:_drawrounded(context, cr, width, height)
   end
-
-  local overlay = self._item and self._item.overlay
-  if overlay then
-    overlay(self._item._menu,self._item,cr,width,height)
-  end
 end
 
 local function draw(item,args)

theme/init.lua

@@ -101,7 +101,6 @@ function module.add_colors_from_namespace(data,namespace)
   priv["fg"] = beautiful[namespace.."_fg"] or priv["fg"]
   priv["bg"] = beautiful[namespace.."_bg"] or priv["bg"]
   priv["border_color"] = beautiful[namespace.."_border_color"] or priv["border_color"]
-  print("ICI",namespace,namespace.."_item_border_color",beautiful[namespace.."_item_border_color"])
   priv["item_border_color"] = beautiful[namespace.."_item_border_color"] or priv["item_border_color"]
   priv.namespace = priv.namespace or {}
   priv.namespace[#priv.namespace+1] = namespace