radical/item_layout/icon.lua

local setmetatable = setmetatable
local beautiful = require( "beautiful"    )
local color     = require( "gears.color"  )
local cairo     = require( "lgi"          ).cairo
local wibox     = require( "wibox"        )
local checkbox  = require( "radical.widgets.checkbox" )
local fkey      = require( "radical.widgets.fkey"         )

local module = {}

local function icon_fit(data,...)
  local w,h = wibox.widget.imagebox.fit(...)
  return w,data.icon_size or h
end

local function create_item(item,data,args)
    --Create the background
  local bg = wibox.widget.background()
  bg:set_fg(item._private_data.fg)

  --Create the main item layout
  local l,la,lr = wibox.layout.fixed.vertical(),wibox.layout.align.vertical(),wibox.layout.fixed.horizontal()
  local m = wibox.layout.margin(la)
  m:set_margins (0)
  m:set_left  ( data.item_style.margins.LEFT   )
  m:set_right ( data.item_style.margins.RIGHT  )
  m:set_top   ( data.item_style.margins.TOP    )
  m:set_bottom( data.item_style.margins.BOTTOM )
  local text_w = wibox.widget.textbox()
  text_w:set_align("center")
  item._private_data._fit = wibox.widget.background.fit
  m.fit = function(...)
      if item.visible == false or item._filter_out == true then
        return 0,0
      end
      return data._internal.layout.item_fit(data,item,...)
  end

  if data.fkeys_prefix == true then
    local pref = wibox.widget.textbox()
    pref.draw = function(self,w, cr, width, height)
      cr:set_source(color(beautiful.fg_normal))
      cr:paint()
      wibox.widget.textbox.draw(self,w, cr, width, height)
    end
    l:add(pref)
    m:set_left  ( 0 )
  end

  if args.prefix_widget then
    l:add(args.prefix_widget)
  end

  local icon_flex = wibox.layout.align.horizontal()
  local icon = wibox.widget.imagebox()
  icon.fit = function(...) return icon_fit(data,...) end
  if args.icon then
    icon:set_image(args.icon)
  end
  icon_flex:set_middle(icon)
  l:add(icon_flex)
  l:add(text_w)
  if item._private_data.sub_menu_f or item._private_data.sub_menu_m then
    local subArrow  = wibox.widget.imagebox() --TODO, make global
    subArrow.fit = function(box, w, h) return subArrow._image:get_width(),item.height end
    subArrow:set_image( beautiful.menu_submenu_icon   )
    lr:add(subArrow)
    bg.fit = function(box,w,h,...)
      args.y = data.height-h-data.margins.top
      return wibox.widget.background.fit(box,w,h,...)
    end
  end
  if item.checkable then
    item._internal.get_map.checked = function()
      if type(item._private_data.checked) == "function" then
        return item._private_data.checked()
      else
        return item._private_data.checked
      end
    end
    local ck = wibox.widget.imagebox()
    ck:set_image(item.checked and checkbox.checked() or checkbox.unchecked())
    lr:add(ck)
    item._internal.set_map.checked = function (value)
      item._private_data.checked = value
      ck:set_image(item.checked and checkbox.checked() or checkbox.unchecked())
    end
  end
  if args.suffix_widget then
    lr:add(args.suffix_widget)
  end
  la:set_top(l)
  la:set_bottom(lr)
  bg:set_widget(m)

  item._internal.text_w = text_w
  item._internal.icon_w = icon

  bg:connect_signal("button::press",function(b,t,s,id,e)
    data:emit_signal("button::press",data,item,id)
  end)
  bg:connect_signal("button::release",function(b,t)
    data:emit_signal("button::release",data,item,id)
  end)
  bg:connect_signal("mouse::enter",function(b,t)
    data:emit_signal("mouse::enter",data,item)
  end)
  bg:connect_signal("mouse::leave",function(b,t)
    data:emit_signal("mouse::leave",data,item)
  end)

  return bg
end

return setmetatable(module, { __call = function(_, ...) return create_item(...) end })
-- kate: space-indent on; indent-width 2; replace-tabs on;