gistfile1.txt

settings_table = {
        {
                -- Edit this table to customise your rings.
                -- You can create more rings simply by adding more elements to settings_table.
                -- "name" is the type of stat to display; you can choose from 'cpu', 'memperc', 'fs_used_perc', 'battery_used_perc'.
                name='time',
                -- "arg" is the argument to the stat type, e.g. if in Conky you would write ${cpu cpu0}, 'cpu0' would be the argument. If you would not use an argument in the Conky variable, use ''.
                arg='%I.%M',
                -- "max" is the maximum value of the ring. If the Conky variable outputs a percentage, use 100.
                max=12,
                -- "bg_colour" is the colour of the base ring.
                bg_colour=0xffffff,
                -- "bg_alpha" is the alpha value of the base ring.
                bg_alpha=0.1,
                -- "fg_colour" is the colour of the indicator part of the ring.
                fg_colour=0xffffff,
                -- "fg_alpha" is the alpha value of the indicator part of the ring.
                fg_alpha=0.2,
                -- "x" and "y" are the x and y coordinates of the centre of the ring, relative to the top left corner of the Conky window.
                x=165, y=170,
                -- "radius" is the radius of the ring.
                radius=50,
                -- "thickness" is the thickness of the ring, centred around the radius.
                thickness=5,
                -- "start_angle" is the starting angle of the ring, in degrees, clockwise from top. Value can be either positive or negative.
                start_angle=0,
                -- "end_angle" is the ending angle of the ring, in degrees, clockwise from top. Value can be either positive or negative, but must be larger (e.g. more clockwise) than start_angle.
                end_angle=360
        },
        {
                name='time',
                arg='%M.%S',
                max=60,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0x4a89a7,
                fg_alpha=0.4,
                x=165, y=170,
                radius=56,
                thickness=5,
                start_angle=0,
                end_angle=360
        },
        {
                name='time',
                arg='%S',
                max=60,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0xe83737,
                fg_alpha=0.6,
                x=165, y=170,
                radius=62,
                thickness=5,
                start_angle=0,
                end_angle=360
        },
        {
                name='cpu',
                arg='cpu1',
                max=100,
                bg_colour=0xffffff,
                bg_alpha=0,
                fg_colour=0xffffff,
                fg_alpha=0.1,
                x=165, y=170,
                radius=70,
                thickness=5,
                start_angle=60,
                end_angle=120
        },
        {
                name='cpu',
                arg='cpu2',
                max=100,
                bg_colour=0xffffff,
                bg_alpha=0,
                fg_colour=0xebff46,
                fg_alpha=0.1,
                x=165, y=170,
                radius=76,
                thickness=5,
                start_angle=60,
                end_angle=120
        },
        {
                name='cpu',
                arg='cpu0',
                max=100,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0x46a646,
                fg_alpha=0.4,
                x=165, y=170,
                radius=84.5,
                thickness=8,
                start_angle=60,
                end_angle=120
        },
        {
                name='battery_percent',
                arg='BAT1',
                max=100,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0xebff46,
                fg_alpha=0.6,
                x=165, y=170,
                radius=72,
                thickness=11,
                start_angle=122,
                end_angle=210
        },
        {
                name='memperc',
                arg='',
                max=100,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0x46a646,
                fg_alpha=0.8,
                x=165, y=170,
                radius=83.5,
                thickness=8,
                start_angle=122,
                end_angle=210
        },
        {
                name='time',
                arg='%d',
                max=31,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0xebff46,
                fg_alpha=0.8,
                x=165, y=170,
                radius=70,
                thickness=5,
                start_angle=212,
                end_angle=360
        },
        {
                name='time',
                arg='%m',
                max=12,
                bg_colour=0xffffff,
                bg_alpha=0.1,
                fg_colour=0xf4732d,
                fg_alpha=0.8,
                x=165, y=170,
                radius=76,
                thickness=5,
                start_angle=212,
                end_angle=360
        },
        {
                name='memperc',
                arg='%m',
                max=100,
                bg_colour=0xb7b7b7,
                bg_alpha=0.5,
                fg_colour=0x2c2c2c,
                fg_alpha=1.0,
                x=165, y=170,
                radius=120,
                thickness=17,
                start_angle=-90,
                end_angle=30
        },
                {
                name='',
                arg='',
                max=100,
                bg_colour=0xb7b7b7,
                bg_alpha=0.2,
                fg_colour=0x2c2c2c,
                fg_alpha=1.0,
                x=165, y=170,
                radius=116,
                thickness=17,
                start_angle=82,
                end_angle=180
        },
        {
                name='fs_used_perc',
                arg='/home',
                max=100,
                bg_colour=0xffffff,
                bg_alpha=0.5,
                fg_colour=0xffffff,
                fg_alpha=0.6,
                x=165, y=170,
                radius=95,
                thickness=5,
                start_angle=0,
                end_angle=90
        },
}


clock_r=125



clock_x=165
clock_y=170



clock_colour=0xffffff
clock_alpha=0.5



show_seconds=true

require 'cairo'

function rgb_to_r_g_b(colour,alpha)
        return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end

function draw_ring(cr,t,pt)
        local w,h=conky_window.width,conky_window.height

        local xc,yc,ring_r,ring_w,sa,ea=pt['x'],pt['y'],pt['radius'],pt['thickness'],pt['start_angle'],pt['end_angle']
        local bgc, bga, fgc, fga=pt['bg_colour'], pt['bg_alpha'], pt['fg_colour'], pt['fg_alpha']

        local angle_0=sa*(2*math.pi/360)-math.pi/2
        local angle_f=ea*(2*math.pi/360)-math.pi/2
        local t_arc=t*(angle_f-angle_0)

        

        cairo_arc(cr,xc,yc,ring_r,angle_0,angle_f)
        cairo_set_source_rgba(cr,rgb_to_r_g_b(bgc,bga))
        cairo_set_line_width(cr,ring_w)
        cairo_stroke(cr)

        

        cairo_arc(cr,xc,yc,ring_r,angle_0,angle_0+t_arc)
        cairo_set_source_rgba(cr,rgb_to_r_g_b(fgc,fga))
        cairo_stroke(cr)
end

function draw_clock_hands(cr,xc,yc)
        local secs,mins,hours,secs_arc,mins_arc,hours_arc
        local xh,yh,xm,ym,xs,ys

        secs=os.date("%S")
        mins=os.date("%M")
        hours=os.date("%I")

        secs_arc=(2*math.pi/60)*secs
        mins_arc=(2*math.pi/60)*mins+secs_arc/60
        hours_arc=(2*math.pi/12)*hours+mins_arc/12

        

        xh=xc+0.7*clock_r*math.sin(hours_arc)
        yh=yc-0.7*clock_r*math.cos(hours_arc)
        cairo_move_to(cr,xc,yc)
        cairo_line_to(cr,xh,yh)

        cairo_set_line_cap(cr,CAIRO_LINE_CAP_ROUND)
        cairo_set_line_width(cr,5)
        cairo_set_source_rgba(cr,rgb_to_r_g_b(clock_colour,clock_alpha))
        cairo_stroke(cr)

        

        xm=xc+clock_r*math.sin(mins_arc)
        ym=yc-clock_r*math.cos(mins_arc)
        cairo_move_to(cr,xc,yc)
        cairo_line_to(cr,xm,ym)

        cairo_set_line_width(cr,3)
        cairo_stroke(cr)

        

        if show_seconds then
                xs=xc+clock_r*math.sin(secs_arc)
                ys=yc-clock_r*math.cos(secs_arc)
                cairo_move_to(cr,xc,yc)
                cairo_line_to(cr,xs,ys)

                cairo_set_line_width(cr,1)
                cairo_stroke(cr)
        end
end

function conky_clock_rings()
        local function setup_rings(cr,pt)
                local str=''
                local value=0

                str=string.format('${%s %s}',pt['name'],pt['arg'])
                str=conky_parse(str)

                value=tonumber(str)
                if value == nil then value = 0 end
                pct=value/pt['max']

                draw_ring(cr,pct,pt)
        end

        

        if conky_window==nil then return end
        local cs=cairo_xlib_surface_create(conky_window.display,conky_window.drawable,conky_window.visual, conky_window.width,conky_window.height)

        local cr=cairo_create(cs)        

        local updates=conky_parse('${updates}')
        update_num=tonumber(updates)

        if update_num>5 then
                for i in pairs(settings_table) do
                        setup_rings(cr,settings_table[i])
                end
        end

        draw_clock_hands(cr,clock_x,clock_y)
end

--[[ RING WIDGET ]]
--[[ Options (name, arg, max, bg_colour, bg_alpha, xc, yc, radius, thickness, start_angle, end_angle):
        "name" is the type of stat to display; you can choose from 'cpu', 'memperc', 'fs_used_perc', 'battery_used_perc'.
        "arg" is the argument to the stat type, e.g. if in Conky you would write ${cpu cpu0}, 'cpu0' would be the argument. If you would not use an argument in the Conky variable, use ''.
        "max" is the maximum value of the ring. If the Conky variable outputs a percentage, use 100.
        "bg_colour" is the colour of the base ring.
        "bg_alpha" is the alpha value of the base ring.
        "fg_colour" is the colour of the indicator part of the ring.
        "fg_alpha" is the alpha value of the indicator part of the ring.
        "x" and "y" are the x and y coordinates of the centre of the ring, relative to the top left corner of the Conky window.
        "radius" is the radius of the ring.
        "thickness" is the thickness of the ring, centred around the radius.
        "start_angle" is the starting angle of the ring, in degrees, clockwise from top. Value can be either positive or negative.
        "end_angle" is the ending angle of the ring, in degrees, clockwise from top. Value can be either positive or negative, but must be larger (e.g. more clockwise) than start_angle. ]]

function ring(cr, name, arg, max, bgc, bga, fgc, fga, xc, yc, r, t, sa, ea)
        local function rgb_to_r_g_b(colour,alpha)
                return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
        end
        
        local function draw_ring(pct)
                local angle_0=sa*(2*math.pi/360)-math.pi/2
                local angle_f=ea*(2*math.pi/360)-math.pi/2
                local pct_arc=pct*(angle_f-angle_0)

                -- Draw background ring

                cairo_arc(cr,xc,yc,r,angle_0,angle_f)
                cairo_set_source_rgba(cr,rgb_to_r_g_b(bgc,bga))
                cairo_set_line_width(cr,t)
                cairo_stroke(cr)
        
                -- Draw indicator ring

                cairo_arc(cr,xc,yc,r,angle_0,angle_0+pct_arc)
                cairo_set_source_rgba(cr,rgb_to_r_g_b(fgc,fga))
                cairo_stroke(cr)
        end
        
        local function setup_ring()
                local str = ''
                local value = 0
                
                str = string.format('${%s %s}', name, arg)
                str = conky_parse(str)
                
                value = tonumber(str)
                if value == nil then value = 0 end
                pct = value/max
                
                draw_ring(pct)
        end        
        
        local updates=conky_parse('${updates}')
        update_num=tonumber(updates)
        
        if update_num>5 then setup_ring() end
end