132 lines
4.1 KiB
Lua
132 lines
4.1 KiB
Lua
local setmetatable = setmetatable
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local print = print
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local debug=debug
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local ipairs = ipairs
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local math = math
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local base = require( "radical.base" )
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local beautiful = require("beautiful")
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local color = require("gears.color")
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local cairo = require("lgi").cairo
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local wibox = require("wibox")
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local module = {
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margins = {
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TOP = 2,
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BOTTOM = 2,
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RIGHT = 20,
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LEFT = 3
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}
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}
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local hcode = {"#7777ff","#ff7777","#77ff77"}
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local end_cache = {}
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module.get_end_arrow = function(args)
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local args = args or {}
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local default_height = beautiful.default_height or 16
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local bgt = type(args.bg_color)
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local width,height = (args.width or default_height/2+1),args.height or default_height
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local img = cairo.ImageSurface(cairo.Format.ARGB32, width+(args.padding or 0), height)
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local cr = cairo.Context(img)
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cr:set_source(color(args.bg_color or beautiful.bg_normal))
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cr:new_path()
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if (args.direction == "left") then
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cr:move_to(0,width+(args.padding or 0))
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cr:line_to(0,height/2)
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cr:line_to(width+(args.padding or 0),height)
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cr:line_to(0,height)
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cr:line_to(0,0)
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cr:line_to(width+(args.padding or 0),0)
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else
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cr:line_to(width+(args.padding or 0),0)
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cr:line_to(width+(args.padding or 0),height)
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cr:line_to(0,height)
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cr:line_to(width-1,height/2)
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cr:line_to(0,0)
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end
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cr:close_path()
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cr:fill()
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return img
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end
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local beg_cache = {}
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module.get_beg_arrow = function(args)
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local args = args or {}
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local default_height = beautiful.default_height or 16
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local bgt = type(args.bg_color)
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local width,height = (args.width or default_height/2+1)+(args.padding or 0),args.height or default_height
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local img = cairo.ImageSurface(cairo.Format.ARGB32, width, height)
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local cr = cairo.Context(img)
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cr:set_source(color(args.bg_color or beautiful.fg_normal))
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cr:new_path()
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if (args.direction == "left") then
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cr:move_to(0,width)
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cr:line_to(0,height/2)
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cr:line_to(width,height)
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cr:line_to(width,0)
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else
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cr:line_to(width,height/2)
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cr:line_to(0,height)
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cr:line_to(0,0)
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end
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cr:close_path()
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cr:fill()
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return img
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end
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local function draw_real(self, w, cr, width, height)
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wibox.widget.background.draw(self, w, cr, width, height)
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cr:save()
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cr:set_source_surface(module.get_end_arrow({width=height/2+2,height=height,bg_color=self.next_color or "#ff0000"}),width-height/2-2,0)
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cr:paint()
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cr:restore()
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self.widget:draw(w, cr, width, height)
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end
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local function get_prev(data,item)
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for k,v in ipairs(data.items) do
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if v[1] == item then
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while k > 0 do
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k = k - 1
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if k > 0 and (not data.items[k][1].hidden) and data.items[k][1]._internal.f_key == item._internal.f_key - 1 then
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return data.items[k][1]
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end
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end
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return nil
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end
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end
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end
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local function draw(data,item,args)
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local args,flags = args or {},{}
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for _,v in pairs(args) do flags[v] = true end
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if item.widget.draw ~= draw_real then
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item.widget.draw = draw_real
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item.widget:emit_signal("widget::updated")
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end
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local color_idx = math.mod(item.f_key,#hcode) + 1
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local previous_idx = color_idx == 1 and #hcode or color_idx - 1
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local next_idx = color_idx + 1 > #hcode and 1 or (color_idx + 1)
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local prev_color = item.widget.next_color
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item.widget.next_color = hcode[next_idx]
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local prev_item = get_prev(data,item)
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if flags[base.item_flags.SELECTED] or (item._tmp_menu) then
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if prev_item and prev_item.widget.next_color ~= (args.color or data.bg_focus) then
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prev_item.widget.next_color = args.color or data.bg_focus
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prev_item.widget:emit_signal("widget::updated")
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end
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item.widget:set_bg(args.color or data.bg_focus)
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else
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if prev_item and prev_item.widget.next_color ~= hcode[color_idx] then
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prev_item.widget.next_color = hcode[color_idx]
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prev_item.widget:emit_signal("widget::updated")
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end
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item.widget:set_bg(args.color or hcode[color_idx])
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end
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end
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return setmetatable(module, { __call = function(_, ...) return draw(...) end })
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-- kate: space-indent on; indent-width 2; replace-tabs on;
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