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#951 Le 01/09/2011, à 20:44

Levi59

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

je crois que c'est sh le problème. lance avec bash ou en rendant le script exécutable et en le lançant via :

./test2.sh
OU
bash test2.sh

Pour ton code, le probleme vient du calcul. l'interpreteur ne sait pas calculer des nombres décimaux par défaut. il faut utiliser "bc".

Hors ligne

#952 Le 01/09/2011, à 20:52

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@levi59: merci... ton script marche au poil...maintenant il va falloir représenter ça sur l’écran...

Hors ligne

#953 Le 01/09/2011, à 21:31

Levi59

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

pour la partie lua j'ai jamais fait. Par contre je crois qu'il y a un sujet conky pour lua sur le forum... @ voir.

Hors ligne

#954 Le 01/09/2011, à 21:48

sunkart

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Je pensais à Levi59 quand je disais que les pros du script pouvait t'aider, je ne m'étais pas tromper lol


Cyril

Hors ligne

#955 Le 02/09/2011, à 09:01

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@levi59: j'ai légèrement adapté ton script en remplaçant FRXX1949 par $1 afin de l’exécuter avec comme paramètre la localisation...ça sera plus pratique pour la suite.

j'ai fait des tests avec 20 valeurs dans le fichier. en prenant des mesures toutes les 4hrs, ca donnerait un historique de 3 jours pour ceux dont la machine tourne en continu...
(je ne sais pas encore combien de valeurs seront nécessaires pour avoir un affichage correct et relevant, toutes les idées sont les bienvenues [relevé toutes les heures, toutes les 4Hrs, 12Hrs, 1xpar jour...])

je me plonge dans le lua pour essayer d'afficher qqch....mais ici aussi un expert serait le bienvenu...

j'ai bidouillé un graphe en juxtaposant 20 colonnes (sur base du script bargraph de wlourf)et ça donne ceci...

pressions

bargraphpression.lua

--[[ BARGRAPH WIDGET
    v2.1 by wlourf (07 Jan. 2011)
    this widget draws a bargraph with different effects 
    http://u-scripts.blogspot.com/2010/07/bargraph-widget.html
    
To call the script in a conky, use, before TEXT
    lua_load /path/to/the/script/bargraph.lua
    lua_draw_hook_pre main_rings
and add one line (blank or not) after TEXT

    
Parameters are :
3 parameters are mandatory
name    - the name of the conky variable to display, for example for {$cpu cpu0}, just write name="cpu"
arg        - the argument of the above variable, for example for {$cpu cpu0}, just write arg="cpu0"
          arg can be a numerical value if name=""
max        - the maximum value the above variable can reach, for example, for {$cpu cpu0}, just write max=100
    
Optional parameters:
x,y        - coordinates of the starting point of the bar, default = middle of the conky window
cap        - end of cap line, ossibles values are r,b,s (for round, butt, square), default="b"
          http://www.cairographics.org/samples/set_line_cap/
angle    - angle of rotation of the bar in degress, default = 0 (i.e. a vertical bar)
          set to 90 for an horizontal bar
skew_x    - skew bar around x axis, default = 0
skew_y    - skew bar around y axis, default = 0
blocks  - number of blocks to display for a bar (values >0) , default= 10
height    - height of a block, default=10 pixels
width    - width of a block, default=20 pixels
space    - space between 2 blocks, default=2 pixels
angle_bar    - this angle is used to draw a bar on a circular way (ok, this is no more a bar !) default=0
radius        - for cicular bars, internal radius, default=0
              with radius, parameter width has no more effect.

Colours below are defined into braces {colour in hexadecimal, alpha}
fg_colour    - colour of a block ON, default= {0x00FF00,1}
bg_colour    - colour of a block OFF, default = {0x00FF00,0.5}
alarm        - threshold, values after this threshold will use alarm_colour colour , default=max
alarm_colour - colour of a block greater than alarm, default=fg_colour
smooth        - (true or false), create a gradient from fg_colour to bg_colour, default=false 
mid_colour    - colours to add to gradient, with this syntax {position into the gradient (0 to1), colour hexa, alpha}
              for example, this table {{0.25,0xff0000,1},{0.5,0x00ff00,1},{0.75,0x0000ff,1}} will add
              3 colurs to gradient created by fg_colour and alarm_colour, default=no mid_colour
led_effect    - add LED effects to each block, default=no led_effect
              if smooth=true, led_effect is not used
              possibles values : "r","a","e" for radial, parallelel, perdendicular to the bar (just try!)
              led_effect has to be used with theses colours :
fg_led        - middle colour of a block ON, default = fg_colour
bg_led        - middle colour of a block OFF, default = bg_colour
alarm_led    - middle colour of a block > ALARM,  default = alarm_colour

reflection parameters, not avaimable for circular bars
reflection_alpha    - add a reflection effect (values from 0 to 1) default = 0 = no reflection
                      other values = starting opacity
reflection_scale    - scale of the reflection (default = 1 = height of text)
reflection_length   - length of reflection, define where the opacity will be set to zero
                      calues from 0 to 1, default =1
reflection            - position of reflection, relative to a vertical bar, default="b"
                      possibles values are : "b","t","l","r" for bottom, top, left, right
draw_me     - if set to false, text is not drawn (default = true or 1)
              it can be used with a conky string, if the string returns 1, the text is drawn :
              example : "${if_empty ${wireless_essid wlan0}}${else}1$endif",

v1.0 (10 Feb. 2010) original release
v1.1 (13 Feb. 2010) numeric values can be passed instead conky stats with parameters name="", arg = numeric_value    
v1.2 (28 Feb. 2010) just renamed the widget to bargraph
v1.3 (03 Mar. 2010) added parameters radius & angle_bar to draw the bar in a circular way
v2.0 (12 Jul. 2010) rewrite script + add reflection effects and parameters are now set into tables
v2.1 (07 Jan. 2011) Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"

--      This program is free software; you can redistribute it and/or modify
--      it under the terms of the GNU General Public License as published by
--      the Free Software Foundation version 3 (GPLv3)
--     
--      This program is distributed in the hope that it will be useful,
--      but WITHOUT ANY WARRANTY; without even the implied warranty of
--      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--      GNU General Public License for more details.
--     
--      You should have received a copy of the GNU General Public License
--      along with this program; if not, write to the Free Software
--      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
--      MA 02110-1301, USA.        

]]

require 'cairo'

----------------START OF PARAMETERS ----------
function conky_main_bars()
    local bars_settings={
        
        {
            name="execp",
            arg="sed -n '1p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },    
{
            name="execp",
            arg="sed -n '2p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=25,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '2p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=35,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '3p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=45,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '4p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=55,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '5p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=65,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '6p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=75,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '7p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=85,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '8p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=95,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '9p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=105,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '10p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=115,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '11p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=125,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '12p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=135,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '13p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=145,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '14p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=155,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '15p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=165,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '16p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=175,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '17p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=185,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '18p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=195,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '19p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=205,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '20p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=215,y=120,
            blocks=1,
            height=110,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },                            
    }
    
-----------END OF PARAMETERS--------------


    
    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)
    
    cr = cairo_create(cs)    
    --prevent segmentation error when reading cpu state
    if tonumber(conky_parse('${updates}'))>3 then
        for i in pairs(bars_settings) do
            
            draw_multi_bar_graph(bars_settings[i])
            
        end
    end
    cairo_destroy(cr)
    cairo_surface_destroy(cs)
    cr=nil

end



function draw_multi_bar_graph(t)
    cairo_save(cr)
    --check values
    if t.draw_me == true then t.draw_me = nil end
    if t.draw_me ~= nil and conky_parse(tostring(t.draw_me)) ~= "1" then return end    
    if t.name==nil and t.arg==nil then 
        print ("No input values ... use parameters 'name' with 'arg' or only parameter 'arg' ") 
        return
    end
    if t.max==nil then
        print ("No maximum value defined, use 'max'")
        return
    end
    if t.name==nil then t.name="" end
    if t.arg==nil then t.arg="" end

    --set default values
    if t.min == nil        then t.min=0 end    
    if t.x == nil        then t.x = conky_window.width/2 end
    if t.y == nil        then t.y = conky_window.height/2 end
    if t.blocks == nil    then t.blocks=10 end
    if t.height == nil    then t.height=10 end
    if t.angle == nil     then t.angle=0 end
    t.angle = t.angle*math.pi/180
    --line cap style
    if t.cap==nil        then t.cap = "b" end
    local cap="b"
    for i,v in ipairs({"s","r","b"}) do 
        if v==t.cap then cap=v end
    end
    local delta=0
    if t.cap=="r" or t.cap=="s" then delta = t.height end
    if cap=="s" then     cap = CAIRO_LINE_CAP_SQUARE
    elseif cap=="r" then
        cap = CAIRO_LINE_CAP_ROUND
    elseif cap=="b" then
        cap = CAIRO_LINE_CAP_BUTT
    end
    --end line cap style
    --if t.led_effect == nil    then t.led_effect="r" end
    if t.width == nil    then t.width=20 end
    if t.space == nil    then t.space=2 end
    if t.radius == nil    then t.radius=0 end
    if t.angle_bar == nil    then t.angle_bar=0 end
    t.angle_bar = t.angle_bar*math.pi/360 --halt angle
    
    --colours
    if t.bg_colour == nil     then t.bg_colour = {0x00FF00,0.5} end
    if #t.bg_colour~=2         then t.bg_colour = {0x00FF00,0.5} end
    if t.fg_colour == nil     then t.fg_colour = {0x00FF00,1} end
    if #t.fg_colour~=2         then t.fg_colour = {0x00FF00,1} end
    if t.alarm_colour == nil     then t.alarm_colour = t.fg_colour end
    if #t.alarm_colour~=2         then t.alarm_colour = t.fg_colour end

    if t.mid_colour ~= nil then    
        for i=1, #t.mid_colour do    
            if #t.mid_colour[i]~=3 then 
                print ("error in mid_color table")
                t.mid_colour[i]={1,0xFFFFFF,1} 
            end
        end
    end
    
    if t.bg_led ~= nil and #t.bg_led~=2    then t.bg_led = t.bg_colour end
    if t.fg_led ~= nil and #t.fg_led~=2    then t.fg_led = t.fg_colour end
    if t.alarm_led~= nil and #t.alarm_led~=2 then t.alarm_led = t.fg_led end
    
    if t.led_effect~=nil then
        if t.bg_led == nil then t.bg_led = t.bg_colour end
        if t.fg_led == nil     then t.fg_led = t.fg_colour end
        if t.alarm_led == nil  then t.alarm_led = t.fg_led end
    end
    

    if t.alarm==nil then t.alarm = t.max end --0.8*t.max end
    if t.smooth == nil then t.smooth = false end

    if t.skew_x == nil then 
        t.skew_x=0 
    else
        t.skew_x = math.pi*t.skew_x/180    
    end
    if t.skew_y == nil then 
        t.skew_y=0
    else
        t.skew_y = math.pi*t.skew_y/180    
    end
    
    if t.reflection_alpha==nil then t.reflection_alpha=0 end
    if t.reflection_length==nil then t.reflection_length=1 end
    if t.reflection_scale==nil then t.reflection_scale=1 end
    
    --end of default values
    

     local function rgb_to_r_g_b(col_a)
        return ((col_a[1] / 0x10000) % 0x100) / 255., ((col_a[1] / 0x100) % 0x100) / 255., (col_a[1] % 0x100) / 255., col_a[2]
    end
    
    
    --functions used to create patterns

    local function create_smooth_linear_gradient(x0,y0,x1,y1)
        local pat = cairo_pattern_create_linear (x0,y0,x1,y1)
        cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(t.fg_colour))
        cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(t.alarm_colour))
        if t.mid_colour ~=nil then
            for i=1, #t.mid_colour do
                cairo_pattern_add_color_stop_rgba (pat, t.mid_colour[i][1], rgb_to_r_g_b({t.mid_colour[i][2],t.mid_colour[i][3]}))
            end
        end
        return pat
    end

    local function create_smooth_radial_gradient(x0,y0,r0,x1,y1,r1)
        local pat =  cairo_pattern_create_radial (x0,y0,r0,x1,y1,r1)
        cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(t.fg_colour))
        cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(t.alarm_colour))
        if t.mid_colour ~=nil then
            for i=1, #t.mid_colour do
                cairo_pattern_add_color_stop_rgba (pat, t.mid_colour[i][1], rgb_to_r_g_b({t.mid_colour[i][2],t.mid_colour[i][3]}))
            end
        end
        return pat
    end
    
    local function create_led_linear_gradient(x0,y0,x1,y1,col_alp,col_led)
        local pat = cairo_pattern_create_linear (x0,y0,x1,y1) ---delta, 0,delta+ t.width,0)
        cairo_pattern_add_color_stop_rgba (pat, 0.0, rgb_to_r_g_b(col_alp))
        cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(col_led))
        cairo_pattern_add_color_stop_rgba (pat, 1.0, rgb_to_r_g_b(col_alp))
        return pat
    end

    local function create_led_radial_gradient(x0,y0,r0,x1,y1,r1,col_alp,col_led,mode)
        local pat = cairo_pattern_create_radial (x0,y0,r0,x1,y1,r1)
        if mode==3 then
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(col_alp))                
            cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(col_led))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(col_alp))                
        else
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(col_led))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(col_alp))                
        end
        return pat
    end






    local function draw_single_bar()
        --this fucntion is used for bars with a single block (blocks=1) but 
        --the drawing is cut in 3 blocks : value/alarm/background
        --not zvzimzblr for circular bar
        local function create_pattern(col_alp,col_led,bg)
            local pat
            
            if not t.smooth then
                if t.led_effect=="e" then
                    pat = create_led_linear_gradient (-delta, 0,delta+ t.width,0,col_alp,col_led)
                elseif t.led_effect=="a" then
                    pat = create_led_linear_gradient (t.width/2, 0,t.width/2,-t.height,col_alp,col_led)
                elseif  t.led_effect=="r" then
                    pat = create_led_radial_gradient (t.width/2, -t.height/2, 0, t.width/2,-t.height/2,t.height/1.5,col_alp,col_led,2)
                else
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))
                end
            else
                if bg then
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(t.bg_colour))
                else
                    pat = create_smooth_linear_gradient(t.width/2, 0, t.width/2,-t.height)
                end
            end
            return pat
        end
        
        local y1=-t.height*pct/100
        local y2,y3
        if pct>(100*t.alarm/t.max) then 
            y1 = -t.height*t.alarm/100
            y2 = -t.height*pct/100
            if t.smooth then y1=y2 end
        end
        
        if t.angle_bar==0 then
        
            --block for fg value
            local pat = create_pattern(t.fg_colour,t.fg_led,false)
            cairo_set_source(cr,pat)
            cairo_rectangle(cr,0,0,t.width,y1)
            cairo_fill(cr)
            cairo_pattern_destroy(pat)
        
            -- block for alarm value            
            if not t.smooth and y2 ~=nil then 
                pat = create_pattern(t.alarm_colour,t.alarm_led,false)
                cairo_set_source(cr,pat)
                cairo_rectangle(cr,0,y1,t.width,y2-y1)
                cairo_fill(cr)
                y3=y2
                cairo_pattern_destroy(pat)
            else
                y2,y3=y1,y1
            end
            -- block for bg value
            cairo_rectangle(cr,0,y2,t.width,-t.height-y3)
            pat = create_pattern(t.bg_colour,t.bg_led,true)
            cairo_set_source(cr,pat)
            cairo_pattern_destroy(pat)
            cairo_fill(cr)
        end        
    end  --end single bar
    





    local function draw_multi_bar()
        --function used for bars with 2 or more blocks
        for pt = 1,t.blocks do 
            --set block y
            local y1 = -(pt-1)*(t.height+t.space)
            local light_on=false
            
            --set colors
            local col_alp = t.bg_colour
            local col_led = t.bg_led
            if pct>=(100/t.blocks) or pct>0 then --ligth on or not the block
                if pct>=(pcb*(pt-1))  then 
                    light_on = true
                    col_alp = t.fg_colour
                    col_led = t.fg_led
                    if pct>=(100*t.alarm/t.max) and (pcb*pt)>(100*t.alarm/t.max) then 
                        col_alp = t.alarm_colour 
                        col_led = t.alarm_led 
                    end
                end
            end

            --set colors
            --have to try to create gradients outside the loop ?
            local pat 
            
            if not t.smooth then
                if t.angle_bar==0 then
                    if t.led_effect=="e" then
                        pat = create_led_linear_gradient (-delta, 0,delta+ t.width,0,col_alp,col_led)
                    elseif t.led_effect=="a" then
                        pat = create_led_linear_gradient (t.width/2, -t.height/2+y1,t.width/2,0+t.height/2+y1,col_alp,col_led)                    
                    elseif  t.led_effect=="r" then
                        pat = create_led_radial_gradient (t.width/2, y1, 0, t.width/2,y1,t.width/1.5,col_alp,col_led,2)    
                    else
                        pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))
                    end
                else
                     if t.led_effect=="a"  then
                         pat = create_led_radial_gradient (0, 0, t.radius+(t.height+t.space)*(pt-1),
                                                         0, 0, t.radius+(t.height+t.space)*(pt),                         
                                             col_alp,col_led,3)    
                    else
                        pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))                    
                    end
                    
                end
            else
                
                if light_on then
                    if t.angle_bar==0 then
                        pat = create_smooth_linear_gradient(t.width/2, t.height/2, t.width/2,-(t.blocks-0.5)*(t.height+t.space))
                    else
                        pat = create_smooth_radial_gradient(0, 0, (t.height+t.space),  0,0,(t.blocks+1)*(t.height+t.space),2)
                    end
                else        
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(t.bg_colour))
                end
            end
            cairo_set_source (cr, pat)
            cairo_pattern_destroy(pat)

            --draw a block
            if t.angle_bar==0 then
                cairo_move_to(cr,0,y1)
                cairo_line_to(cr,t.width,y1)
            else        
                cairo_arc( cr,0,0,
                    t.radius+(t.height+t.space)*(pt)-t.height/2,
                     -t.angle_bar -math.pi/2 ,
                     t.angle_bar -math.pi/2)
            end
            cairo_stroke(cr)
        end    
    end
    
    
    
    
    local function setup_bar_graph()
        --function used to retrieve the value to display and to set the cairo structure
        if t.blocks ~=1 then t.y=t.y-t.height/2 end
        
        local value = 0
        if t.name ~="" then
            value = tonumber(conky_parse(string.format('${%s %s}', t.name, t.arg)))
            --$to_bytes doesn't work when value has a decimal point,
            --https://garage.maemo.org/plugins/ggit/browse.php/?p=monky;a=commitdiff;h=174c256c81a027a2ea406f5f37dc036fac0a524b;hp=d75e2db5ed3fc788fb8514121f67316ac3e5f29f
            --http://sourceforge.net/tracker/index.php?func=detail&aid=3000865&group_id=143975&atid=757310
            --conky bug?
            --value = (conky_parse(string.format('${%s %s}', t.name, t.arg)))
            --if string.match(value,"%w") then
            --    value = conky_parse(string.format('${to_bytes %s}',value))
            --end
        else
            value = tonumber(t.arg)
        end

        if value==nil then value =0 end
        
        pct = 100*value/t.max
        pcb = 100/t.blocks
        
        cairo_set_line_width (cr, t.height)
        cairo_set_line_cap  (cr, cap)
        cairo_translate(cr,t.x,t.y)
        cairo_rotate(cr,t.angle)

        local matrix0 = cairo_matrix_t:create()
        tolua.takeownership(matrix0)
        cairo_matrix_init (matrix0, 1,t.skew_y,t.skew_x,1,0,0)
        cairo_transform(cr,matrix0)

    
        
        --call the drawing function for blocks
        if t.blocks==1 and t.angle_bar==0 then
            draw_single_bar()
            if t.reflection=="t" or t.reflection=="b" then cairo_translate(cr,0,-t.height) end
        else
            draw_multi_bar()
        end

        --dot for reminder
        --[[
        if t.blocks ~=1 then
            cairo_set_source_rgba(cr,1,0,0,1)
            cairo_arc(cr,0,t.height/2,3,0,2*math.pi)
            cairo_fill(cr)
        else
            cairo_set_source_rgba(cr,1,0,0,1)
            cairo_arc(cr,0,0,3,0,2*math.pi)
            cairo_fill(cr)
        end]]
        
        --call the drawing function for reflection and prepare the mask used        
        if t.reflection_alpha>0 and t.angle_bar==0 then
            local pat2
            local matrix1 = cairo_matrix_t:create()
            tolua.takeownership(matrix1)
            if t.angle_bar==0 then
                pts={-delta/2,(t.height+t.space)/2,t.width+delta,-(t.height+t.space)*(t.blocks)}
                if t.reflection=="t" then
                    cairo_matrix_init (matrix1,1,0,0,-t.reflection_scale,0,-(t.height+t.space)*(t.blocks-0.5)*2*(t.reflection_scale+1)/2)
                    pat2 = cairo_pattern_create_linear (t.width/2,-(t.height+t.space)*(t.blocks),t.width/2,(t.height+t.space)/2)
                elseif t.reflection=="r" then
                    cairo_matrix_init (matrix1,-t.reflection_scale,0,0,1,delta+2*t.width,0)
                    pat2 = cairo_pattern_create_linear (delta/2+t.width,0,-delta/2,0)
                elseif t.reflection=="l" then
                    cairo_matrix_init (matrix1,-t.reflection_scale,0,0,1,-delta,0)
                    pat2 = cairo_pattern_create_linear (-delta/2,0,delta/2+t.width,-0)
                else --bottom
                    cairo_matrix_init (matrix1,1,0,0,-1*t.reflection_scale,0,(t.height+t.space)*(t.reflection_scale+1)/2)
                    pat2 = cairo_pattern_create_linear (t.width/2,(t.height+t.space)/2,t.width/2,-(t.height+t.space)*(t.blocks))
                end
            end
            cairo_transform(cr,matrix1)

            if t.blocks==1 and t.angle_bar==0 then
                draw_single_bar()
                cairo_translate(cr,0,-t.height/2) 
            else
                draw_multi_bar()
            end
            
            
            cairo_set_line_width(cr,0.01)
            cairo_pattern_add_color_stop_rgba (pat2, 0,0,0,0,1-t.reflection_alpha)
            cairo_pattern_add_color_stop_rgba (pat2, t.reflection_length,0,0,0,1)
            if t.angle_bar==0 then
                cairo_rectangle(cr,pts[1],pts[2],pts[3],pts[4])
            end
            cairo_clip_preserve(cr)
            cairo_set_operator(cr,CAIRO_OPERATOR_CLEAR)
            cairo_stroke(cr)
            cairo_mask(cr,pat2)
            cairo_pattern_destroy(pat2)
            cairo_set_operator(cr,CAIRO_OPERATOR_OVER)
            
        end --reflection
        pct,pcb=nil
    end --setup_bar_graph()
    
    --start here !
    setup_bar_graph()
    cairo_restore(cr)
end

bon conky à tous...

Dernière modification par shamen456 (Le 02/09/2011, à 16:23)

Hors ligne

#956 Le 02/09/2011, à 21:36

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Bonjour à tous...

Grâce au script bash de levi59 et aux scripts lua de wlourf,
je crois qu'on arrive finalement a quelque chose de pas trop mal...

etalonnage

en fonctionnement

les nouvelles valeurs apparaissent sur la droite et "poussent" les anciennes valeurs vers la gauche

voici le conky pour appeler les différents éléments :

# Use Xft?
use_xft yes
xftfont DejaVu Sans:size=10
xftalpha 0.8
text_buffer_size 2048

# Update interval in seconds
update_interval 1

# This is the number of times Conky will update before quitting.
# Set to zero to run forever.
total_run_times 0

# Create own window instead of using desktop (required in nautilus)
own_window yes
own_window_transparent yes
own_window_type override
own_window_class conky
own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager
background yes

# Use double buffering (reduces flicker, may not work for everyone)
double_buffer yes


# Minimum size of text area
minimum_size 230 200
#maximum_width 200

# Draw shades?
draw_shades no

# Draw outlines?
draw_outline no

# Draw borders around text
draw_borders no

# Stippled borders?
stippled_borders 0

# border margins
border_inner_margin 5

# border width
border_width 1

# Default colors and also border colors
default_color black
default_shade_color black
default_outline_color black
own_window_colour black
color0 C00000 #D16241 #aujourd'hui
color1 0000FF #B1ADA7 #semaine
color2 303030 #167AAB #WE et jours/mois



# Text alignment, other possible values are commented
#alignment top_left
alignment top_right
#alignment bottom_left
#alignment bottom_right

# Gap between borders of screen and text
# same thing as passing -x at command line
gap_x 620
gap_y 90

# Subtract file system buffers from used memory?
no_buffers yes

# set to yes if you want all text to be in uppercase
uppercase no

# number of cpu samples to average
# set to 1 to disable averaging
cpu_avg_samples 10

# number of net samples to average
# set to 1 to disable averaging
net_avg_samples 10

# Force UTF8? note that UTF8 support required XFT
override_utf8_locale yes

# Add spaces to keep things from moving about?  This only affects certain objects.
use_spacer none
short_units yes

# -- Lua Load -- #
# SET THE PATH TO THE SCRIPT HERE
lua_load ~/.conky/bargraph/bargraphpression.lua
lua_draw_hook_pre main_bars

lua_load ~/.conky/bargraph/textpression.lua
lua_draw_hook_post draw_text

#LEAVE AT LEAST ONE LINE, BLANK OR NOT AFTER TEXT
TEXT
${image ./pix/bigpanel2.png  -s 225x180 -p +0,-2}${execi 14400 bash ./.conky/bargraph/pression.sh BEXX0006}

14400 correspond à une actualisation toute les 4 heures, adaptez le code de localisation à votre ville...

le script bash pression.sh [merci à Levi59] (il crée deux fichiers log, un pour les valeurs à afficher et un pour les textes à afficher)

#!/bin/bash
# si le fichier contient plus de XX valeurs (première = plus vieille)
#supprimer première valeur
[[ -f ListePressionAdapt.log ]] && {
    [[ $(wc -l < ListePressionAdapt.log) -eq 20 ]] && sed -i '1d' ListePressionAdapt.log
}
[[ -f ListePression.log ]] && {
    [[ $(wc -l < ListePression.log) -eq 20 ]] && sed -i '1d' ListePression.log
}

i=0
while read
do 
    ((i++))
    [[ ${REPLY} =~ "Pressure:" ]] && j=$i
    [[ ${i} -eq $((j+7)) ]] && PR_INCH=${REPLY}
done < <(wget -nv http://www.weather.com/weather/today/$1 -O -)

PR_HPA=$(bc << EOF
scale=2
$PR_INCH * 33.86389 - 960
EOF
)
echo $PR_HPA >> ListePressionAdapt.log

PR_HP=$(bc << EOF
scale=2
$PR_INCH * 33.86389
EOF
)
echo $PR_HP >> ListePression.log

le fichier bargraphpression.lua pour afficher le graphique [merci à wlourf]

--[[ BARGRAPH WIDGET
    v2.1 by wlourf (07 Jan. 2011)
    this widget draws a bargraph with different effects 
    http://u-scripts.blogspot.com/2010/07/bargraph-widget.html
    
To call the script in a conky, use, before TEXT
    lua_load /path/to/the/script/bargraph.lua
    lua_draw_hook_pre main_rings
and add one line (blank or not) after TEXT

    
Parameters are :
3 parameters are mandatory
name    - the name of the conky variable to display, for example for {$cpu cpu0}, just write name="cpu"
arg        - the argument of the above variable, for example for {$cpu cpu0}, just write arg="cpu0"
          arg can be a numerical value if name=""
max        - the maximum value the above variable can reach, for example, for {$cpu cpu0}, just write max=100
    
Optional parameters:
x,y        - coordinates of the starting point of the bar, default = middle of the conky window
cap        - end of cap line, ossibles values are r,b,s (for round, butt, square), default="b"
          http://www.cairographics.org/samples/set_line_cap/
angle    - angle of rotation of the bar in degress, default = 0 (i.e. a vertical bar)
          set to 90 for an horizontal bar
skew_x    - skew bar around x axis, default = 0
skew_y    - skew bar around y axis, default = 0
blocks  - number of blocks to display for a bar (values >0) , default= 10
height    - height of a block, default=10 pixels
width    - width of a block, default=20 pixels
space    - space between 2 blocks, default=2 pixels
angle_bar    - this angle is used to draw a bar on a circular way (ok, this is no more a bar !) default=0
radius        - for cicular bars, internal radius, default=0
              with radius, parameter width has no more effect.

Colours below are defined into braces {colour in hexadecimal, alpha}
fg_colour    - colour of a block ON, default= {0x00FF00,1}
bg_colour    - colour of a block OFF, default = {0x00FF00,0.5}
alarm        - threshold, values after this threshold will use alarm_colour colour , default=max
alarm_colour - colour of a block greater than alarm, default=fg_colour
smooth        - (true or false), create a gradient from fg_colour to bg_colour, default=false 
mid_colour    - colours to add to gradient, with this syntax {position into the gradient (0 to1), colour hexa, alpha}
              for example, this table {{0.25,0xff0000,1},{0.5,0x00ff00,1},{0.75,0x0000ff,1}} will add
              3 colurs to gradient created by fg_colour and alarm_colour, default=no mid_colour
led_effect    - add LED effects to each block, default=no led_effect
              if smooth=true, led_effect is not used
              possibles values : "r","a","e" for radial, parallelel, perdendicular to the bar (just try!)
              led_effect has to be used with theses colours :
fg_led        - middle colour of a block ON, default = fg_colour
bg_led        - middle colour of a block OFF, default = bg_colour
alarm_led    - middle colour of a block > ALARM,  default = alarm_colour

reflection parameters, not avaimable for circular bars
reflection_alpha    - add a reflection effect (values from 0 to 1) default = 0 = no reflection
                      other values = starting opacity
reflection_scale    - scale of the reflection (default = 1 = height of text)
reflection_length   - length of reflection, define where the opacity will be set to zero
                      calues from 0 to 1, default =1
reflection            - position of reflection, relative to a vertical bar, default="b"
                      possibles values are : "b","t","l","r" for bottom, top, left, right
draw_me     - if set to false, text is not drawn (default = true or 1)
              it can be used with a conky string, if the string returns 1, the text is drawn :
              example : "${if_empty ${wireless_essid wlan0}}${else}1$endif",

v1.0 (10 Feb. 2010) original release
v1.1 (13 Feb. 2010) numeric values can be passed instead conky stats with parameters name="", arg = numeric_value    
v1.2 (28 Feb. 2010) just renamed the widget to bargraph
v1.3 (03 Mar. 2010) added parameters radius & angle_bar to draw the bar in a circular way
v2.0 (12 Jul. 2010) rewrite script + add reflection effects and parameters are now set into tables
v2.1 (07 Jan. 2011) Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"

--      This program is free software; you can redistribute it and/or modify
--      it under the terms of the GNU General Public License as published by
--      the Free Software Foundation version 3 (GPLv3)
--     
--      This program is distributed in the hope that it will be useful,
--      but WITHOUT ANY WARRANTY; without even the implied warranty of
--      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--      GNU General Public License for more details.
--     
--      You should have received a copy of the GNU General Public License
--      along with this program; if not, write to the Free Software
--      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
--      MA 02110-1301, USA.        

]]

require 'cairo'

----------------START OF PARAMETERS ----------
function conky_main_bars()
    local bars_settings={
        
        {
            name="execp",
            arg="sed -n '1p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },    
{
            name="execp",
            arg="sed -n '2p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=25,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '3p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=35,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '4p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=45,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '5p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=55,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '6p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=65,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '7p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=75,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '8p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=85,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '9p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=95,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '10p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=105,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '11p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=115,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '12p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=125,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '13p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=135,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '14p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=145,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '15p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=155,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '16p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=165,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '17p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=175,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '18p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=185,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '19p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=195,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="execp",
            arg="sed -n '20p' ListePressionAdapt.log",
            max=100,
            alarm=50,
            bg_colour={0x000000,0.25},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=205,y=120,
            blocks=1,
            height=100,width=10,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
    
{
            name="",
            arg="0",
            max=200,
            alarm=50,
            bg_colour={0x000000,.5},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=80,angle=90,
            blocks=1,
            height=200,width=1,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="",
            arg="0",
            max=200,
            alarm=50,
            bg_colour={0x000000,.5},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=60,angle=90,
            blocks=1,
            height=200,width=1,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },
{
            name="",
            arg="0",
            max=200,
            alarm=50,
            bg_colour={0x000000,.5},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=40,angle=90,
            blocks=1,
            height=200,width=1,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },                    
{
            name="",
            arg="0",
            max=200,
            alarm=50,
            bg_colour={0x000000,.5},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=100,angle=90,
            blocks=1,
            height=200,width=1,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },    
{
            name="",
            arg="0",
            max=200,
            alarm=50,
            bg_colour={0xff0000,.5},
            fg_colour={0x808080,1},
            alarm_colour={0xffff00,1},
            x=15,y=70,angle=90,
            blocks=1,
            height=200,width=1,
            smooth=true,
            mid_colour={{.4,0xc0ffff,1}}

        },                                                                                            
    }
    
-----------END OF PARAMETERS--------------


    
    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)
    
    cr = cairo_create(cs)    
    --prevent segmentation error when reading cpu state
    if tonumber(conky_parse('${updates}'))>3 then
        for i in pairs(bars_settings) do
            
            draw_multi_bar_graph(bars_settings[i])
            
        end
    end
    cairo_destroy(cr)
    cairo_surface_destroy(cs)
    cr=nil

end



function draw_multi_bar_graph(t)
    cairo_save(cr)
    --check values
    if t.draw_me == true then t.draw_me = nil end
    if t.draw_me ~= nil and conky_parse(tostring(t.draw_me)) ~= "1" then return end    
    if t.name==nil and t.arg==nil then 
        print ("No input values ... use parameters 'name' with 'arg' or only parameter 'arg' ") 
        return
    end
    if t.max==nil then
        print ("No maximum value defined, use 'max'")
        return
    end
    if t.name==nil then t.name="" end
    if t.arg==nil then t.arg="" end

    --set default values
    if t.min == nil        then t.min=0 end    
    if t.x == nil        then t.x = conky_window.width/2 end
    if t.y == nil        then t.y = conky_window.height/2 end
    if t.blocks == nil    then t.blocks=10 end
    if t.height == nil    then t.height=10 end
    if t.angle == nil     then t.angle=0 end
    t.angle = t.angle*math.pi/180
    --line cap style
    if t.cap==nil        then t.cap = "b" end
    local cap="b"
    for i,v in ipairs({"s","r","b"}) do 
        if v==t.cap then cap=v end
    end
    local delta=0
    if t.cap=="r" or t.cap=="s" then delta = t.height end
    if cap=="s" then     cap = CAIRO_LINE_CAP_SQUARE
    elseif cap=="r" then
        cap = CAIRO_LINE_CAP_ROUND
    elseif cap=="b" then
        cap = CAIRO_LINE_CAP_BUTT
    end
    --end line cap style
    --if t.led_effect == nil    then t.led_effect="r" end
    if t.width == nil    then t.width=20 end
    if t.space == nil    then t.space=2 end
    if t.radius == nil    then t.radius=0 end
    if t.angle_bar == nil    then t.angle_bar=0 end
    t.angle_bar = t.angle_bar*math.pi/360 --halt angle
    
    --colours
    if t.bg_colour == nil     then t.bg_colour = {0x00FF00,0.5} end
    if #t.bg_colour~=2         then t.bg_colour = {0x00FF00,0.5} end
    if t.fg_colour == nil     then t.fg_colour = {0x00FF00,1} end
    if #t.fg_colour~=2         then t.fg_colour = {0x00FF00,1} end
    if t.alarm_colour == nil     then t.alarm_colour = t.fg_colour end
    if #t.alarm_colour~=2         then t.alarm_colour = t.fg_colour end

    if t.mid_colour ~= nil then    
        for i=1, #t.mid_colour do    
            if #t.mid_colour[i]~=3 then 
                print ("error in mid_color table")
                t.mid_colour[i]={1,0xFFFFFF,1} 
            end
        end
    end
    
    if t.bg_led ~= nil and #t.bg_led~=2    then t.bg_led = t.bg_colour end
    if t.fg_led ~= nil and #t.fg_led~=2    then t.fg_led = t.fg_colour end
    if t.alarm_led~= nil and #t.alarm_led~=2 then t.alarm_led = t.fg_led end
    
    if t.led_effect~=nil then
        if t.bg_led == nil then t.bg_led = t.bg_colour end
        if t.fg_led == nil     then t.fg_led = t.fg_colour end
        if t.alarm_led == nil  then t.alarm_led = t.fg_led end
    end
    

    if t.alarm==nil then t.alarm = t.max end --0.8*t.max end
    if t.smooth == nil then t.smooth = false end

    if t.skew_x == nil then 
        t.skew_x=0 
    else
        t.skew_x = math.pi*t.skew_x/180    
    end
    if t.skew_y == nil then 
        t.skew_y=0
    else
        t.skew_y = math.pi*t.skew_y/180    
    end
    
    if t.reflection_alpha==nil then t.reflection_alpha=0 end
    if t.reflection_length==nil then t.reflection_length=1 end
    if t.reflection_scale==nil then t.reflection_scale=1 end
    
    --end of default values
    

     local function rgb_to_r_g_b(col_a)
        return ((col_a[1] / 0x10000) % 0x100) / 255., ((col_a[1] / 0x100) % 0x100) / 255., (col_a[1] % 0x100) / 255., col_a[2]
    end
    
    
    --functions used to create patterns

    local function create_smooth_linear_gradient(x0,y0,x1,y1)
        local pat = cairo_pattern_create_linear (x0,y0,x1,y1)
        cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(t.fg_colour))
        cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(t.alarm_colour))
        if t.mid_colour ~=nil then
            for i=1, #t.mid_colour do
                cairo_pattern_add_color_stop_rgba (pat, t.mid_colour[i][1], rgb_to_r_g_b({t.mid_colour[i][2],t.mid_colour[i][3]}))
            end
        end
        return pat
    end

    local function create_smooth_radial_gradient(x0,y0,r0,x1,y1,r1)
        local pat =  cairo_pattern_create_radial (x0,y0,r0,x1,y1,r1)
        cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(t.fg_colour))
        cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(t.alarm_colour))
        if t.mid_colour ~=nil then
            for i=1, #t.mid_colour do
                cairo_pattern_add_color_stop_rgba (pat, t.mid_colour[i][1], rgb_to_r_g_b({t.mid_colour[i][2],t.mid_colour[i][3]}))
            end
        end
        return pat
    end
    
    local function create_led_linear_gradient(x0,y0,x1,y1,col_alp,col_led)
        local pat = cairo_pattern_create_linear (x0,y0,x1,y1) ---delta, 0,delta+ t.width,0)
        cairo_pattern_add_color_stop_rgba (pat, 0.0, rgb_to_r_g_b(col_alp))
        cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(col_led))
        cairo_pattern_add_color_stop_rgba (pat, 1.0, rgb_to_r_g_b(col_alp))
        return pat
    end

    local function create_led_radial_gradient(x0,y0,r0,x1,y1,r1,col_alp,col_led,mode)
        local pat = cairo_pattern_create_radial (x0,y0,r0,x1,y1,r1)
        if mode==3 then
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(col_alp))                
            cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(col_led))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(col_alp))                
        else
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(col_led))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(col_alp))                
        end
        return pat
    end






    local function draw_single_bar()
        --this fucntion is used for bars with a single block (blocks=1) but 
        --the drawing is cut in 3 blocks : value/alarm/background
        --not zvzimzblr for circular bar
        local function create_pattern(col_alp,col_led,bg)
            local pat
            
            if not t.smooth then
                if t.led_effect=="e" then
                    pat = create_led_linear_gradient (-delta, 0,delta+ t.width,0,col_alp,col_led)
                elseif t.led_effect=="a" then
                    pat = create_led_linear_gradient (t.width/2, 0,t.width/2,-t.height,col_alp,col_led)
                elseif  t.led_effect=="r" then
                    pat = create_led_radial_gradient (t.width/2, -t.height/2, 0, t.width/2,-t.height/2,t.height/1.5,col_alp,col_led,2)
                else
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))
                end
            else
                if bg then
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(t.bg_colour))
                else
                    pat = create_smooth_linear_gradient(t.width/2, 0, t.width/2,-t.height)
                end
            end
            return pat
        end
        
        local y1=-t.height*pct/100
        local y2,y3
        if pct>(100*t.alarm/t.max) then 
            y1 = -t.height*t.alarm/100
            y2 = -t.height*pct/100
            if t.smooth then y1=y2 end
        end
        
        if t.angle_bar==0 then
        
            --block for fg value
            local pat = create_pattern(t.fg_colour,t.fg_led,false)
            cairo_set_source(cr,pat)
            cairo_rectangle(cr,0,0,t.width,y1)
            cairo_fill(cr)
            cairo_pattern_destroy(pat)
        
            -- block for alarm value            
            if not t.smooth and y2 ~=nil then 
                pat = create_pattern(t.alarm_colour,t.alarm_led,false)
                cairo_set_source(cr,pat)
                cairo_rectangle(cr,0,y1,t.width,y2-y1)
                cairo_fill(cr)
                y3=y2
                cairo_pattern_destroy(pat)
            else
                y2,y3=y1,y1
            end
            -- block for bg value
            cairo_rectangle(cr,0,y2,t.width,-t.height-y3)
            pat = create_pattern(t.bg_colour,t.bg_led,true)
            cairo_set_source(cr,pat)
            cairo_pattern_destroy(pat)
            cairo_fill(cr)
        end        
    end  --end single bar
    





    local function draw_multi_bar()
        --function used for bars with 2 or more blocks
        for pt = 1,t.blocks do 
            --set block y
            local y1 = -(pt-1)*(t.height+t.space)
            local light_on=false
            
            --set colors
            local col_alp = t.bg_colour
            local col_led = t.bg_led
            if pct>=(100/t.blocks) or pct>0 then --ligth on or not the block
                if pct>=(pcb*(pt-1))  then 
                    light_on = true
                    col_alp = t.fg_colour
                    col_led = t.fg_led
                    if pct>=(100*t.alarm/t.max) and (pcb*pt)>(100*t.alarm/t.max) then 
                        col_alp = t.alarm_colour 
                        col_led = t.alarm_led 
                    end
                end
            end

            --set colors
            --have to try to create gradients outside the loop ?
            local pat 
            
            if not t.smooth then
                if t.angle_bar==0 then
                    if t.led_effect=="e" then
                        pat = create_led_linear_gradient (-delta, 0,delta+ t.width,0,col_alp,col_led)
                    elseif t.led_effect=="a" then
                        pat = create_led_linear_gradient (t.width/2, -t.height/2+y1,t.width/2,0+t.height/2+y1,col_alp,col_led)                    
                    elseif  t.led_effect=="r" then
                        pat = create_led_radial_gradient (t.width/2, y1, 0, t.width/2,y1,t.width/1.5,col_alp,col_led,2)    
                    else
                        pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))
                    end
                else
                     if t.led_effect=="a"  then
                         pat = create_led_radial_gradient (0, 0, t.radius+(t.height+t.space)*(pt-1),
                                                         0, 0, t.radius+(t.height+t.space)*(pt),                         
                                             col_alp,col_led,3)    
                    else
                        pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))                    
                    end
                    
                end
            else
                
                if light_on then
                    if t.angle_bar==0 then
                        pat = create_smooth_linear_gradient(t.width/2, t.height/2, t.width/2,-(t.blocks-0.5)*(t.height+t.space))
                    else
                        pat = create_smooth_radial_gradient(0, 0, (t.height+t.space),  0,0,(t.blocks+1)*(t.height+t.space),2)
                    end
                else        
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(t.bg_colour))
                end
            end
            cairo_set_source (cr, pat)
            cairo_pattern_destroy(pat)

            --draw a block
            if t.angle_bar==0 then
                cairo_move_to(cr,0,y1)
                cairo_line_to(cr,t.width,y1)
            else        
                cairo_arc( cr,0,0,
                    t.radius+(t.height+t.space)*(pt)-t.height/2,
                     -t.angle_bar -math.pi/2 ,
                     t.angle_bar -math.pi/2)
            end
            cairo_stroke(cr)
        end    
    end
    
    
    
    
    local function setup_bar_graph()
        --function used to retrieve the value to display and to set the cairo structure
        if t.blocks ~=1 then t.y=t.y-t.height/2 end
        
        local value = 0
        if t.name ~="" then
            value = tonumber(conky_parse(string.format('${%s %s}', t.name, t.arg)))
            --$to_bytes doesn't work when value has a decimal point,
            --https://garage.maemo.org/plugins/ggit/browse.php/?p=monky;a=commitdiff;h=174c256c81a027a2ea406f5f37dc036fac0a524b;hp=d75e2db5ed3fc788fb8514121f67316ac3e5f29f
            --http://sourceforge.net/tracker/index.php?func=detail&aid=3000865&group_id=143975&atid=757310
            --conky bug?
            --value = (conky_parse(string.format('${%s %s}', t.name, t.arg)))
            --if string.match(value,"%w") then
            --    value = conky_parse(string.format('${to_bytes %s}',value))
            --end
        else
            value = tonumber(t.arg)
        end

        if value==nil then value =0 end
        
        pct = 100*value/t.max
        pcb = 100/t.blocks
        
        cairo_set_line_width (cr, t.height)
        cairo_set_line_cap  (cr, cap)
        cairo_translate(cr,t.x,t.y)
        cairo_rotate(cr,t.angle)

        local matrix0 = cairo_matrix_t:create()
        tolua.takeownership(matrix0)
        cairo_matrix_init (matrix0, 1,t.skew_y,t.skew_x,1,0,0)
        cairo_transform(cr,matrix0)

    
        
        --call the drawing function for blocks
        if t.blocks==1 and t.angle_bar==0 then
            draw_single_bar()
            if t.reflection=="t" or t.reflection=="b" then cairo_translate(cr,0,-t.height) end
        else
            draw_multi_bar()
        end

        --dot for reminder
        --[[
        if t.blocks ~=1 then
            cairo_set_source_rgba(cr,1,0,0,1)
            cairo_arc(cr,0,t.height/2,3,0,2*math.pi)
            cairo_fill(cr)
        else
            cairo_set_source_rgba(cr,1,0,0,1)
            cairo_arc(cr,0,0,3,0,2*math.pi)
            cairo_fill(cr)
        end]]
        
        --call the drawing function for reflection and prepare the mask used        
        if t.reflection_alpha>0 and t.angle_bar==0 then
            local pat2
            local matrix1 = cairo_matrix_t:create()
            tolua.takeownership(matrix1)
            if t.angle_bar==0 then
                pts={-delta/2,(t.height+t.space)/2,t.width+delta,-(t.height+t.space)*(t.blocks)}
                if t.reflection=="t" then
                    cairo_matrix_init (matrix1,1,0,0,-t.reflection_scale,0,-(t.height+t.space)*(t.blocks-0.5)*2*(t.reflection_scale+1)/2)
                    pat2 = cairo_pattern_create_linear (t.width/2,-(t.height+t.space)*(t.blocks),t.width/2,(t.height+t.space)/2)
                elseif t.reflection=="r" then
                    cairo_matrix_init (matrix1,-t.reflection_scale,0,0,1,delta+2*t.width,0)
                    pat2 = cairo_pattern_create_linear (delta/2+t.width,0,-delta/2,0)
                elseif t.reflection=="l" then
                    cairo_matrix_init (matrix1,-t.reflection_scale,0,0,1,-delta,0)
                    pat2 = cairo_pattern_create_linear (-delta/2,0,delta/2+t.width,-0)
                else --bottom
                    cairo_matrix_init (matrix1,1,0,0,-1*t.reflection_scale,0,(t.height+t.space)*(t.reflection_scale+1)/2)
                    pat2 = cairo_pattern_create_linear (t.width/2,(t.height+t.space)/2,t.width/2,-(t.height+t.space)*(t.blocks))
                end
            end
            cairo_transform(cr,matrix1)

            if t.blocks==1 and t.angle_bar==0 then
                draw_single_bar()
                cairo_translate(cr,0,-t.height/2) 
            else
                draw_multi_bar()
            end
            
            
            cairo_set_line_width(cr,0.01)
            cairo_pattern_add_color_stop_rgba (pat2, 0,0,0,0,1-t.reflection_alpha)
            cairo_pattern_add_color_stop_rgba (pat2, t.reflection_length,0,0,0,1)
            if t.angle_bar==0 then
                cairo_rectangle(cr,pts[1],pts[2],pts[3],pts[4])
            end
            cairo_clip_preserve(cr)
            cairo_set_operator(cr,CAIRO_OPERATOR_CLEAR)
            cairo_stroke(cr)
            cairo_mask(cr,pat2)
            cairo_pattern_destroy(pat2)
            cairo_set_operator(cr,CAIRO_OPERATOR_OVER)
            
        end --reflection
        pct,pcb=nil
    end --setup_bar_graph()
    
    --start here !
    setup_bar_graph()
    cairo_restore(cr)
end

et le textpression.lua pour afficher les valeurs en-dessous du graphe [encore de wlourf...]

--[[TEXT WIDGET v1.42 by Wlourf 07 Feb. 2011

This widget can drawn texts set in the "text_settings" table with some parameters
http://u-scripts.blogspot.com/2010/06/text-widget.html

To call the script in a conky, use, before TEXT
    lua_load /path/to/the/script/graph.lua
    lua_draw_hook_pre main_graph
and add one line (blank or not) after TEXT

The parameters (all optionals) are :
text        - text to display, default = "Conky is good for you"
              it can be used with conky variables, i.e. text="my cpu1 is ${cpu cpu1} %")
            - coordinates below are relative to top left corner of the conky window
x           - x coordinate of first letter (bottom-left), default = center of conky window
y           - y coordinate of first letter (bottom-left), default = center of conky window
h_align        - horizontal alignement of text relative to point (x,y), default="l"
              available values are "l": left, "c" : center, "r" : right
v_align        - vertical alignment of text relative to point (x,y), default="b"
              available values "t" : top, "m" : middle, "b" : bottom
font_name   - name of font to use, default = Free Sans
font_size   - size of font to use, default = 14
italic      - display text in italic (true/false), default=false
oblique     - display text in oblique (true/false), default=false (I don' see the difference with italic!)
bold        - display text in bold (true/false), default=false
angle       - rotation of text in degrees, default = 0 (horizontal)
colour      - table of colours for text, default = plain white {{1,0xFFFFFF,1}}
              this table contains one or more tables with format {P,C,A}
              P=position of gradient (0 = beginning of text, 1= end of text)
              C=hexadecimal colour 
              A=alpha (opacity) of color (0=invisible,1=opacity 100%)
              Examples :
              for a plain color {{1,0x00FF00,0.5}}
              for a gradient with two colours {{0,0x00FF00,0.5},{1,0x000033,1}}
              or {{0.5,0x00FF00,1},{1,0x000033,1}} -with this one, gradient will start in the middle of the text
              for a gradient with three colours {{0,0x00FF00,0.5},{0.5,0x000033,1},{1,0x440033,1}}
              and so on ...
orientation    - in case of gradient, "orientation" defines the starting point of the gradient, default="ww"
              there are 8 available starting points : "nw","nn","ne","ee","se","ss","sw","ww"
              (n for north, w for west ...)
              theses 8 points are the 4 corners + the 4 middles of text's outline
              so a gradient "nn" will go from "nn" to "ss" (top to bottom, parallele to text)
              a gradient "nw" will go from "nw" to "se" (left-top corner to right-bottom corner)
radial        - define a radial gradient (if present at the same time as "orientation", "orientation" will have no effect)
              this parameter is a table with 6 numbers : {xa,ya,ra,xb,yb,rb}
              they define two circle for the gradient :
              xa, ya, xb and yb are relative to x and y values above
reflection_alpha    - add a reflection effect (values from 0 to 1) default = 0 = no reflection
                      other values = starting opacity
reflection_scale    - scale of the reflection (default = 1 = height of text)
reflection_length   - length of reflection, define where the opacity will be set to zero
                      calues from 0 to 1, default =1
skew_x,skew_y    - skew text around x or y axis
draw_me     - if set to false, text is not drawn (default = true or 1)
              it can be used with a conky string, if the string returns 1, the text is drawn :
              example : "${if_empty ${wireless_essid wlan0}}${else}1$endif",
              


v1.0    07/06/2010, Original release
v1.1    10/06/2010    Add "orientation" parameter
v1.2    15/06/2010  Add "h_align", "v_align" and "radial" parameters
v1.3    25/06/2010  Add "reflection_alpha", "reflection_length", "reflection_scale", 
                    "skew_x" et "skew_y"
v1.4    07/01/2011  Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"
                    text is parsed inside the function, not in the array of settings
v1.41   26/01/2011  Correct bug for h_align="c"    
v1.42   09/02/2011  Correct bug for orientation="ee"                

--      This program is free software; you can redistribute it and/or modify
--      it under the terms of the GNU General Public License as published by
--      the Free Software Foundation version 3 (GPLv3)
--     
--      This program is distributed in the hope that it will be useful,
--      but WITHOUT ANY WARRANTY; without even the implied warranty of
--      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--      GNU General Public License for more details.
--     
--      You should have received a copy of the GNU General Public License
--      along with this program; if not, write to the Free Software
--      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
--      MA 02110-1301, USA.        

]]
require 'cairo'

function conky_draw_text()
    local text_settings={
        --BEGIN OF PARAMETERS
        
        {
        text="${exec sed -n '1p' ListePression.log | cut -c1-7}",
        x=17,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '2p' ListePression.log | cut -c1-7}",
        x=27,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '3p' ListePression.log | cut -c1-7}",
        x=37,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '4p' ListePression.log | cut -c1-7}",
        x=47,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '5p' ListePression.log | cut -c1-7}",
        x=57,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '6p' ListePression.log | cut -c1-7}",
        x=67,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '7p' ListePression.log | cut -c1-7}",
        x=77,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '8p' ListePression.log | cut -c1-7}",
        x=87,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '9p' ListePression.log | cut -c1-7}",
        x=97,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '10p' ListePression.log | cut -c1-7}",
        x=107,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '11p' ListePression.log | cut -c1-7}",
        x=117,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '12p' ListePression.log | cut -c1-7}",
        x=127,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '13p' ListePression.log | cut -c1-7}",
        x=137,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '14p' ListePression.log | cut -c1-7}",
        x=147,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '15p' ListePression.log | cut -c1-7}",
        x=157,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '16p' ListePression.log | cut -c1-7}",
        x=167,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '17p' ListePression.log | cut -c1-7}",
        x=177,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '18p' ListePression.log | cut -c1-7}",
        x=187,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '19p' ListePression.log | cut -c1-7}",
        x=197,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
 {
        text="${exec sed -n '20p' ListePression.log | cut -c1-7}",
        x=207,
        y=121,
        colour={{1         ,0x000000,.8}},
        angle=90,
        font_name="Ubuntu Light",bold=true,
        font_size=8,
        orientation="nw"
        },
    }
    
    
--------------END OF PARAMETERS----------------

    if conky_window == nil then return end
    if tonumber(conky_parse("$updates"))<3 then return end
       
    local cs = cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, conky_window.width, conky_window.height)

    for i,v in pairs(text_settings) do    
        cr = cairo_create (cs)
        display_text(v)
        cairo_destroy(cr)
        cr = nil
    end
    
    cairo_surface_destroy(cs)

end

function rgb_to_r_g_b2(tcolour)
    local colour,alpha=tcolour[2],tcolour[3]
    return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end

function display_text(t)
    if t.draw_me==true then t.draw_me = nil end
    if t.draw_me~=nil and conky_parse(tostring(t.draw_me)) ~= "1" then return end
    local function set_pattern(te)
        --this function set the pattern
        if #t.colour==1 then 
            cairo_set_source_rgba(cr,rgb_to_r_g_b2(t.colour[1]))
        else
            local pat
            
            if t.radial==nil then
                local pts=linear_orientation(t,te)
                pat = cairo_pattern_create_linear (pts[1],pts[2],pts[3],pts[4])
            else
                pat = cairo_pattern_create_radial (t.radial[1],t.radial[2],t.radial[3],t.radial[4],t.radial[5],t.radial[6])
            end
        
            for i=1, #t.colour do
                cairo_pattern_add_color_stop_rgba (pat, t.colour[i][1], rgb_to_r_g_b2(t.colour[i]))
            end
            cairo_set_source (cr, pat)
            cairo_pattern_destroy(pat)
        end
    end
    
    --set default values if needed
    if t.text==nil then t.text="Conky is good for you !" end
    if t.x==nil then t.x = conky_window.width/2 end
    if t.y==nil then t.y = conky_window.height/2 end
    if t.colour==nil then t.colour={{1,0xFFFFFF,1}} end
    if t.font_name==nil then t.font_name="Free Sans" end
    if t.font_size==nil then t.font_size=14 end
    if t.angle==nil then t.angle=0 end
    if t.italic==nil then t.italic=false end
    if t.oblique==nil then t.oblique=false end
    if t.bold==nil then t.bold=false end
    if t.radial ~= nil then
        if #t.radial~=6 then 
            print ("error in radial table")
            t.radial=nil 
        end
    end
    if t.orientation==nil then t.orientation="ww" end
    if t.h_align==nil then t.h_align="l" end
    if t.v_align==nil then t.v_align="b" end    
    if t.reflection_alpha == nil then t.reflection_alpha=0 end
    if t.reflection_length == nil then t.reflection_length=1 end
    if t.reflection_scale == nil then t.reflection_scale=1 end
    if t.skew_x==nil then t.skew_x=0 end
    if t.skew_y==nil then t.skew_y=0 end    
    cairo_translate(cr,t.x,t.y)
    cairo_rotate(cr,t.angle*math.pi/180)
    cairo_save(cr)       
     
    local slant = CAIRO_FONT_SLANT_NORMAL
    local weight = CAIRO_FONT_WEIGHT_NORMAL
    if t.italic then slant = CAIRO_FONT_SLANT_ITALIC end
    if t.oblique then slant = CAIRO_FONT_SLANT_OBLIQUE end
    if t.bold then weight = CAIRO_FONT_WEIGHT_BOLD end
    
    cairo_select_font_face(cr, t.font_name, slant,weight)
 
    for i=1, #t.colour do    
        if #t.colour[i]~=3 then 
            print ("error in color table")
            t.colour[i]={1,0xFFFFFF,1} 
        end
    end

    local matrix0 = cairo_matrix_t:create()
    tolua.takeownership(matrix0) 
    local skew_x,skew_y=t.skew_x/t.font_size,t.skew_y/t.font_size
    cairo_matrix_init (matrix0, 1,skew_y,skew_x,1,0,0)
    cairo_transform(cr,matrix0)
    cairo_set_font_size(cr,t.font_size)
    local te=cairo_text_extents_t:create()
    tolua.takeownership(te) 
    t.text=conky_parse(t.text)
    cairo_text_extents (cr,t.text,te)
    set_pattern(te)
            
    local mx,my=0,0
    
    if t.h_align=="c" then
        mx=-te.width/2-te.x_bearing
    elseif t.h_align=="r" then
        mx=-te.width
    end
    if t.v_align=="m" then
        my=-te.height/2-te.y_bearing
    elseif t.v_align=="t" then
        my=-te.y_bearing
    end
    cairo_move_to(cr,mx,my)
    
    cairo_show_text(cr,t.text)

     
        
        
   if t.reflection_alpha ~= 0 then 
        local matrix1 = cairo_matrix_t:create()
        tolua.takeownership(matrix1)         
        cairo_set_font_size(cr,t.font_size)

        cairo_matrix_init (matrix1,1,0,0,-1*t.reflection_scale,0,(te.height+te.y_bearing+my)*(1+t.reflection_scale))
        cairo_set_font_size(cr,t.font_size)
        te=nil
        local te=cairo_text_extents_t:create()
        tolua.takeownership(te) 
        cairo_text_extents (cr,t.text,te)
        
                
        cairo_transform(cr,matrix1)
        set_pattern(te)
        cairo_move_to(cr,mx,my)
        cairo_show_text(cr,t.text)

        local pat2 = cairo_pattern_create_linear (0,
                                        (te.y_bearing+te.height+my),
                                        0,
                                        te.y_bearing+my)
        cairo_pattern_add_color_stop_rgba (pat2, 0,1,0,0,1-t.reflection_alpha)
        cairo_pattern_add_color_stop_rgba (pat2, t.reflection_length,0,0,0,1)    
        
        --line is not drawn but with a size of zero, the mask won't be nice
        cairo_set_line_width(cr,1)
        local dy=te.x_bearing
        if dy<0 then dy=dy*(-1) end
        cairo_rectangle(cr,mx+te.x_bearing,te.y_bearing+te.height+my,te.width+dy,-te.height*1.05)
        cairo_clip_preserve(cr)
        cairo_set_operator(cr,CAIRO_OPERATOR_CLEAR)
        --cairo_stroke(cr)
        cairo_mask(cr,pat2)
        cairo_pattern_destroy(pat2)
        cairo_set_operator(cr,CAIRO_OPERATOR_OVER)
        te=nil
    end
    
end


function linear_orientation(t,te)
    local w,h=te.width,te.height
    local xb,yb=te.x_bearing,te.y_bearing
    
    if t.h_align=="c" then
        xb=xb-w/2
    elseif t.h_align=="r" then
        xb=xb-w
       end    
    if t.v_align=="m" then
        yb=-h/2
    elseif t.v_align=="t" then
        yb=0
       end    
    local p=0
    if t.orientation=="nn" then
        p={xb+w/2,yb,xb+w/2,yb+h}
    elseif t.orientation=="ne" then
        p={xb+w,yb,xb,yb+h}
    elseif t.orientation=="ww" then
        p={xb,h/2,xb+w,h/2}
    elseif vorientation=="se" then
        p={xb+w,yb+h,xb,yb}
    elseif t.orientation=="ss" then
        p={xb+w/2,yb+h,xb+w/2,yb}
    elseif t.orientation=="ee" then
        p={xb+w,h/2,xb,h/2}        
    elseif t.orientation=="sw" then
        p={xb,yb+h,xb+w,yb}
    elseif t.orientation=="nw" then
        p={xb,yb,xb+w,yb+h}
    end
    return p
end

et finalement merci à Carpediem pour l'idee initiale....

Bon conky à tous

--Edit --
ce n'est certainement pas la méthode la plus économique en ressources ni en nombre de lignes de code, donc si un expert en lua veut faire quelque chose de moins gourmand, ça serait pas mal...

Dernière modification par shamen456 (Le 02/09/2011, à 21:40)

Hors ligne

#957 Le 03/09/2011, à 00:01

sunkart

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

C'est beau big_smile

J'ai dans l'idée de faire la même chose avec un script qui me récupère es T°, utilisation CPU et RAM un peu dans le genre Mumin mais avec un vrai archivage, il faut peut-être que je me tourne vers ça.

Bravo en tout cas.


Cyril

Hors ligne

#958 Le 03/09/2011, à 12:33

mutavh

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Bonjour à tous!

J'essaye d'utiliser le script de shamen456 (#907) avec le script lua associé.

Ceci dit je tombe sur ce message d'erreur:

Conky: llua_do_call: function conky_main execution failed: /home/xavier/.conky/.arcs_blue.lua:402: attempt to perform arithmetic on local 'value' (a nil value)

La ligne correspondante dans le fichier lua est:

local val = value % (max_value + 1)

Je n'arrive pas à comprendre le sens de cette ligne ni ce qui déconne...

Est-ce que quelqu'un peut m'aider svp?

Hors ligne

#959 Le 03/09/2011, à 15:00

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@mutav : c'est bizarre, j'ai jamais eut cette erreur en adaptant le script...

essaie en plaçant ce code sur la ligne juste avant

if value==nil then value=0 end

si j’interprète bien ce qu'il te dit, c'est qu'il essaie de calculer qqch avec value=nil (une valeur texte) au lieu de value=0 (valeur chiffrée)...que les spécialistes en programmation me corrigent si je dis des conneries...

...l'apprentissage par essais et erreurs a ses limites..

Hors ligne

#960 Le 03/09/2011, à 17:04

carpediem

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Félicitation shamen456 super travail, et un grand merci à Levi59 pour sont aide et pour ma part je me suis simplement contenté d'être à l'initiative de cette idée.

Par contre je rencontre un problème sad
Voici ce qui s'affiche sur mon bureau

1315061833.png

merci
Cordialement carpediem


"Carpe diem quam minimum credula postero"
(Cueille le jour présent, en te fiant le moins possible au lendemain.)
HORACE

Hors ligne

#961 Le 03/09/2011, à 19:58

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

c'est bizarre, c'est comme s'il ne trouvait pas les valeurs à afficher sur le graphe...
essaie de supprimer les deux fichiers log pour réinitialiser les données...

Hors ligne

#962 Le 04/09/2011, à 05:30

carpediem

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

oui c'est bizarre, je n'ai pas de fichier log qui apparaisse. Je pense que c'est un problème avec le conkyrc

#Fonctionnement de conky 
  total_run_times 0               #Temps en secondes ; 0 = toujours actif
  background yes                  #Pour que conky tourne en arrière plan ; no = pour les tests

#Réglages système
  cpu_avg_samples 1               #Nb d'échantillons pour calculer la moyenne d'utilisation CPU
  net_avg_samples 2               #Nb d'échantillons pour calculer la moyenne d'utilisation CPU

#Mémoire
  double_buffer yes               #Éviter le clignotement
  no_buffers yes                  #Soustraire les mémoires tampons de la mémoire utilisée
  text_buffer_size 1024           #Taille du cache pour le texte
#Fonctionnement de conky 
  total_run_times 0               #Temps en secondes ; 0 = toujours actif
  background yes                  #Pour que conky tourne en arrière plan ; no = pour les tests

#Réglages système
  cpu_avg_samples 1               #Nb d'échantillons pour calculer la moyenne d'utilisation CPU
  net_avg_samples 2               #Nb d'échantillons pour calculer la moyenne d'utilisation CPU

#Mémoire
  double_buffer yes               #Éviter le clignotement
  no_buffers yes                  #Soustraire les mémoires tampons de la mémoire utilisée
  text_buffer_size 1024           #Taille du cache pour le texte

#Affichage
  out_to_console no               #Affiche le texte sur la sortie standard
  update_interval 1               #Taux de rafraîchissement de la fenêtre (s)

#Fenêtre conky
#alignment top_left             #Alignement
 #---
  minimum_size 200 200            #Taille minimum (px) ; largeur / hauteur
  maximum_width 250 400              #Largeur maximum (px)
 #---
 gap_x 380                     #Écart avec le bord gauche / droit
 gap_y 700                       #Écart avec le bord haut / bas
 #---
  draw_shades no                  #Afficher les ombres
  draw_outline no                 #Afficher les contours de fenêtre
  draw_borders no                 #Afficher des contours autour des blocs de texte
  border_width 1                  #Largeur du contour
  border_inner_margin 1           #Largeur des marges
 #---
  own_window yes                  #Utiliser sa propre fenêtre
  own_window_type override        #Type de fenêtre ; normal / override / desktop
  own_window_transparent yes      #Pseudo transparence
  own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager

#Mise en forme
  use_xft yes                     #Utiliser Xft (polices lissées etc)
  xftalpha 1                      #Utiliser Xft
  override_utf8_locale yes        #Force l'UTF8
  uppercase no                    #Tout le texte en majuscule
  use_spacer right                #Ajoute des espaces après certains objets (qu'avec des polices fixes)
 #---
  xftfont saxMono:size=9          #Police par défaut
 #---
  default_bar_size 360 3          #Barre par défaut (longeur hauteur)
  stippled_borders 6              #Taille des pointillés

#Couleurs
  default_color FFFFFF            #Couleur par défaut
  default_shade_color 333333      #Couleur des ombres
  default_outline_color black     #Couleur des contours
 #---
  color1 242424                   #Gris
 #---
  short_units yes                 #Unités courtes
  pad_percents 2                  #Unité à 2 décimales

default_color FFFFFF
color1 D2CBC1
color2 red #red, color of current T°
color3 blue #color of feels like T°
color4 B1ADA7
color5 7B7870
color6 3F3C36
color7 black #text color


# -- Lua Load -- #
# SET THE PATH TO THE SCRIPT HERE
lua_load ~/Conky/Baro/bargraphpression.lua
lua_draw_hook_pre main_bars

lua_load ~/Conky/Baro/textpression.lua
lua_draw_hook_post draw_text

TEXT
${execi 3600 bash ./Conky/Baro/pression.sh FRXX1949}

"Carpe diem quam minimum credula postero"
(Cueille le jour présent, en te fiant le moins possible au lendemain.)
HORACE

Hors ligne

#963 Le 04/09/2011, à 06:58

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@Carpediem: les fichiers log sont créées dans ton répertoire /home/loginname/

essaie de lancer pression.sh dans un terminal pour voir ce qu'il te dit.
je ne vois pas ce qui pourrait clocher dans ton conkyrc

Hors ligne

#964 Le 04/09/2011, à 08:44

carpediem

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@shamen456: il n'y a aucun fichier log dans mon répertoire /home/claude/

carpediem ~/Conky/Baro$ ./pression.sh                                                                                                                                                          
http://www.weather.com/weather/today/:                                                                                                                                                         
2011-09-04 08:38:59 ERREUR 404: Not Found.                                                                                                                                                     
(standard_in) 2: syntax error                                                                                                                                                                  
(standard_in) 2: syntax error                                                                                                                                                                  
carpediem ~/Conky/Baro$ sh pression.sh                                                                                                                                                         
pression.sh: 6: [[: not found                                                                                                                                                                  
pression.sh: 9: [[: not found                                                                                                                                                                  
pression.sh: 17: Syntax error: redirection unexpected                                                                                                                                          
carpediem ~/Conky/Baro$ bash pression.sh                                                                                                                                                       
[sudo] password for claude:                                                                                                                                                                    
Error: "/var/tmp/kdecache-claude" is owned by uid 1000 instead of uid 0.                                                                                                                       
Application asked to unregister timer 0x4100000a which is not registered in this thread. Fix application.                                                                                      
Error: "/tmp/kde-claude" is owned by uid 1000 instead of uid 0.                                                                                                                                
Error: "/tmp/ksocket-claude" is owned by uid 1000 instead of uid 0.                                                                                                                            
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: Aucun fichier ou dossier de ce type                                                                                       
QFileSystemWatcher: failed to add paths: /home/claude/.config/ibus/bus                                                                                                                         
kate(26866)/kdeui (kdelibs) KXMLGUIClient::~KXMLGUIClient: 0x1afd9e8 deleted without having been removed from the factory first. This will leak standalone popupmenus and could lead to crashes.                                                                                                                                                                                              
kate(26866)/kdeui (kdelibs) KXMLGUIClient::~KXMLGUIClient: 0x2119e90 deleted without having been removed from the factory first. This will leak standalone popupmenus and could lead to crashes.                                                                                                                                                                                              
kate(26866)/kdeui (kdelibs) KXMLGUIClient::~KXMLGUIClient: 0x2095148 deleted without having been removed from the factory first. This will leak standalone popupmenus and could lead to crashes.                                                                                                                                                                                              
carpediem ~/Conky/Baro$   

"Carpe diem quam minimum credula postero"
(Cueille le jour présent, en te fiant le moins possible au lendemain.)
HORACE

Hors ligne

#965 Le 04/09/2011, à 09:07

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@carpediem: essaie en mettant le paramètre de localisation (ou bien tu remplace $1 dans le script par ta localisation)
sinon apparemment il essaie d’accéder à un répertoire temporaire mais n'a pas les droits d’accès...mais la mes connaissances sont limitées..:(

Hors ligne

#966 Le 04/09/2011, à 09:15

carpediem

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@shamen456: j'ai modifié dans mon conkyrc
${image ./Conky/Baro/bigpanel2.png  -s 225x180 -p +0,-2}${execi 14400 bash ./Conky/Baro/pression.sh FRXX1949}
par
${image /home/claude/Conky/Baro/bigpanel2.png  -s 225x180 -p +0,-2}${execi 14400 bash /home/claude/Conky/Baro/pression.sh FRXX1949}

1315120373.png

Mais je n'ai toujours pas de fichier log dans mon répertoire.


--Edit--
apparemment ça fonctionne, mais je ne trouve toujours pas les fichiers log.

Dernière modification par carpediem (Le 04/09/2011, à 09:46)


"Carpe diem quam minimum credula postero"
(Cueille le jour présent, en te fiant le moins possible au lendemain.)
HORACE

Hors ligne

#967 Le 04/09/2011, à 09:51

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@carpediem: oui apparement il trouve des donnees à afficher...il faudrait trouver où il cree les fichiers log afin de les supprimer avant de relancer le conky pour tout réinitialiser et faire correspondre les barres aux données... actuellement il t'affiche les 6 dernières données mais elles sont décalées

Hors ligne

#968 Le 04/09/2011, à 10:14

carpediem

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Hourra je viens de trouver mes fichiers log, ils étaient caches dans /home/claude/document. j'ai réinitialisé et rentré les valeurs un peu fantaisiste pour tester.

Voila le résultat.
1315123842.png

Merci à toi @shamen456 ainsi qu'à @Levi59 pour votre fabuleux travail.

Cordialement carpediem


"Carpe diem quam minimum credula postero"
(Cueille le jour présent, en te fiant le moins possible au lendemain.)
HORACE

Hors ligne

#969 Le 04/09/2011, à 13:00

wlourf

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

sunkart a écrit :
${goto 17}${color1}Up: ${color0}${uptime_short}${goto 100}${color1}CPU:${goto 135}${if_match ${cpu} >= 80}${color2}${else}${if_match ${cpu} >= 50}${color3}${else}${if_match ${cpu} >= 20}${color4}${else}${color0}${endif}${endif}${endif}${cpu}%${goto 175}[${freq_g}GHz]${goto 240}${cpugraph 12,30 949494 949494}${goto 275}${color0}${exec sensors | grep temp1 | awk '{ print $2}' | sed 's/\.0°C//g' | sed 's/+//g'}°${goto 300}${exec sensors | grep fan1 | awk '{ print $2}'}RPM${goto 370}${color1}GPU: ${color0}${exec nvidia-settings -q gpucoretemp | grep '):' | awk '{print $4}'| cut -c1-2}°${goto 425}${color1}M/B: ${color0}${exec sensors | grep temp2 | awk '{ print $2}' | sed 's/\.0°C//g' | sed 's/+//g'}°${goto 480}${color1}RAM:${goto 515}${if_match ${memperc} >= 80}${color2}${else}${if_match ${memperc} >= 50}${color3}${else}${if_match ${memperc} >= 20}${color4}${else}${color0}${endif}${endif}${endif}${memperc}%${goto 550}[${mem}]${goto 615}${color1}SWAP: ${if_match ${swapperc} >= 80}${color2}${else}${if_match ${swapperc} >= 50}${color3}${else}${if_match ${swapperc} >= 20}${color4}${else}${color0}${endif}${endif}${endif}${goto 660}${swapperc}%${goto 700}[${swap}]${if_match ${execi 360 aptitude search "~U" | wc -l | tail}==0}${image /home/wahibacyril/UbuntuOne/conky/icones/green_light.png -p 0,2 -s 12x12}${else}${image /home/wahibacyril/UbuntuOne/conky/icones/red_light.png -p 0,2 -s 12x12}${endif}
${color1}SDA:${goto 35}${color0}${execi 10 hddtemp -n /dev/sda}°${goto 60}${diskiograph_read /dev/sda 12,10 844796 844796}${diskiograph_write /dev/sda 12,10 2d7db3 2d7db3}${goto 85}${color1}Films:${goto 125}${if_match ${fs_used_perc /media/Films} >= 85}${color2}${else}${if_match ${fs_used_perc /media/Films} >= 65}${color3}${else}${if_match ${fs_used_perc /media/Films} >= 35}${color4}${else}${color0}${endif}${endif}${endif}${fs_used_perc /media/Films}%${goto 155}${color0}[${fs_used /media/Films}/${fs_size /media/Films}]${goto 270}${color1}Photos:${goto 320}${if_match ${fs_used_perc /media/Photos} >= 85}${color2}${else}${if_match ${fs_used_perc /media/Photos} >= 65}${color3}${else}${if_match ${fs_used_perc /media/Photos} >= 35}${color4}${else}${color0}${endif}${endif}${endif}${fs_used_perc /media/Photos}%${goto 350}${color0}[${fs_used /media/Photos}/${fs_size /media/Photos}]${goto 465}${color1}SDB:${goto 495}${color0}${execi 10 hddtemp -n /dev/sdb}°${goto 520}${diskiograph_read /dev/sdb 12,10 844796 844796}${diskiograph_write /dev/sdb 12,10 2d7db3 2d7db3}${goto 545}${color1}Ubuntu:${goto 595}${if_match ${fs_used_perc /} >= 85}${color2}${else}${if_match ${fs_used_perc /} >= 65}${color3}${else}${if_match ${fs_used_perc /} >= 35}${color4}${else}${color0}${endif}${endif}${endif}${fs_used_perc /}%${goto 625}${color0}[${fs_used /}/${fs_size /}]${goto 740}${color1}Data:${goto 775}${if_match ${fs_used_perc /media/Data} >= 85}${color2}${else}${if_match ${fs_used_perc /media/Data} >= 65}${color3}${else}${if_match ${fs_used_perc /media/Data} >= 35}${color4}${else}${color0}${endif}${endif}${endif}${fs_used_perc /media/Data}%${goto 805}${color0}[${fs_used /media/Data}/${fs_size /media/Data}]${goto 920}${color1}Musiques:${goto 985}${if_match ${fs_used_perc /media/Musiques} >= 85}${color2}${else}${if_match ${fs_used_perc /media/Musiques} >= 65}${color3}${else}${if_match ${fs_used_perc /media/Musiques} >= 35}${color4}${else}${color0}${endif}${endif}${endif}${fs_used_perc /media/Musiques}%${goto 1015}${color0}[${fs_used /media/Musiques}/${fs_size /media/Musiques}]

C'est pas super lisible vu que c'est sur une seule ligne neutral

tu peux scinder ta ligne avec \ ou # :  http://conky.pitstop.free.fr/wiki/index … s_%28fr%29

Hors ligne

#970 Le 04/09/2011, à 18:00

sunkart

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Ah yes !!! Je vais l'updater pour qu'il soit plus lisible.
Merci de l'astuce !!


Cyril

Hors ligne

#971 Le 05/09/2011, à 23:36

Levi59

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

remoi sur le baromètre! Je voudrais demander l'aide de ceux qui affichent les donnée de pression pour tester l'utilisation de gnuplot.
C'est la première fois que j'utilise ce logiciel donc je ne suis pas encore super au point mais bon...
J'aimerais que la partie gnuplot soit corrigé au besoin.

Voici la version que je propose (j'ai repris mon ancien script) :
le script se lance avec le code de la ville en argument et créé un fichier log des pressions dans lequel se trouve la date (depuis epoch) et la valeur relevée (-1005 pour mettre l'axe x sur 1005) ainsi qu'un fichier graph.png représentant le graphique des données.
Il suffit alors d'afficher l'image dans conky! smile

Confere plus bas! ^^

Merci de me donner un retour! wink

Dernière modification par Levi59 (Le 08/09/2011, à 19:44)

Hors ligne

#972 Le 05/09/2011, à 23:52

shamen456

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

@levi59 : j'obtiens l'erreur suivante

jacques@jacques-Aspire-7730G:~$ bash barognuplot.sh BEXX0006
2011-09-05 23:50:37 URL:http://www.weather.com/weather/today/BEXX0006 [196326/196326] -> "-" [1]
barognuplot.sh: ligne 21: Erreur de syntaxe près du symbole inattendu « } »
barognuplot.sh: ligne 21: `[[ -z $PR_INCH ]] && {echo "erreur"; exit 1; }'
jacques@jacques-Aspire-7730G:~$

et je ne sais pas trop à quoi ça correspond...

--EDIT--
il faut rajouter un espace entre { et echo à la ligne 21

...par contre je ne trouve pas le fichier graphe?

Dernière modification par shamen456 (Le 05/09/2011, à 23:58)

Hors ligne

#973 Le 05/09/2011, à 23:55

Levi59

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Exact! Le pire c'est que j'avais aussi repéré et corrigé l'erreur mais j'ai pas actualisé sur le forum roll

Hors ligne

#974 Le 06/09/2011, à 13:47

Levi59

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Petite mise à jour du code...
Comme le graphique tiens compte des dates, j'ai modifié le début du script pour qu'il vérifie les dates du fichier log et supprime les valeurs âgées de plus d'une semaine. Ça permet de mieux gérer l'affichage.
Le fonctionnement reste le même que pour la version précédente. (@shamen456 les emplacements des fichiers sont au début du script)
NYRZzs.jpg

#!/bin/bash

## files
LOG="$HOME/.conky/ListePression.log"
GRAPH="$HOME/.conky/graph.png"

## Vérifier argument 
[[ -z $1 ]] && { 
    echo "Absence d'argument: mettre le code de la ville en argument"; exit 1
}

##Infos générales
DATE=$(date +"%s")
DATE1WEEK=$(date --date="1 week ago" +"%s")

# liste des dates de relevé du fichier log
EPOCH=()
while read 
do
    EPOCH+=( "$REPLY" )
done< <(awk '{print $1}' "$LOG")

# si le fichier existe et contient des valeurs de plus d'une semaine (première = plus vieille)
#supprimer première valeur
[[ -f $LOG ]] && {
    for i in $(seq 0 $(($(wc -l < $LOG)-1)))
    do
        [[ $DATE1WEEK -gt ${EPOCH[$i]} ]] && sed -i '1d' $LOG || break
    done
}

## Récupération de la pression sur weather.com
i=0
while read
do 
    ((i++))
    [[ ${REPLY} =~ "Pressure:" ]] && j=$i
    [[ ${i} -eq $((j+7)) ]] && PR_INCH=${REPLY}
done < <(wget -nv http://www.weather.com/weather/today/$1 -O -)

[[ -z $PR_INCH ]] && {
    echo "erreur"; exit 1
}


## Conversion en hectopascal
PR_HP=$(bc << EOF
scale=2
$PR_INCH * 33.86389 - 1005
EOF
)
echo "$DATE $PR_HP" >> $LOG

gnuplot <<EOF
set terminal png enhanced size 400,250 font "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf,9" #transparent
set output "$GRAPH"
unset key
set grid
set xzeroaxis lt -1 lw 1
set yzeroaxis
set ytics ("905" -100, "955" -50, "1005" 0, "1055" 50,"1105" 100)
set mxtics 0
set xdata time
set timefmt "%s"
set xtics 86400
set format x "%d/%m"
plot ["$DATE1WEEK":"$DATE"] [-135:135] "$LOG" using 1:2 with lines 
EOF

exit 0

PS: Je suis toujours dans l'attente de corrections pour la partie gnuplot wink

--EDIT--
modification de l'apparence du graph! ^^

Dernière modification par Levi59 (Le 06/09/2011, à 15:52)

Hors ligne

#975 Le 06/09/2011, à 16:00

maestroom

Re : (4) Conky : Postez vos conkyrc ou certaines parties intéressantes

Nouveau Fond d'écran impose nouveau conky! Toujours dans le plus simple des expressions!
voici une petite image XD
conkytechno.th.png

voici donc les codes utiliser (merci a wlourf )

start_conky.sh

#!/bin/bash

sleep 25
conky -c ~/conky.conf &
sleep 15
conky -c /home/maestroom/conky/net &
sleep 15
conky -c /home/maestroom/conky/cpu &
exit 0

conky.conf

# Conky settings #
background no
update_interval 1

cpu_avg_samples 2
net_avg_samples 2

override_utf8_locale yes

double_buffer yes
no_buffers yes

text_buffer_size 2048
imlib_cache_size 0

# Window specifications #

own_window yes
own_window_type override
own_window_transparent yes
own_window_hints undecorate,sticky,skip_taskbar,skip_pager,below

border_inner_margin 0
border_outer_margin 0

minimum_size 550 550
maximum_width 550

alignment tr
gap_x 619
gap_y 326

# Graphics settings #
draw_shades no
draw_outline no
draw_borders  no
draw_graph_borders no

# Text settings #
use_xft yes
xftfont caviar dreams:size=8
xftalpha 0.1

uppercase no

# Lua Load  #
lua_load /home/maestroom/conky/script/clock.lua
lua_draw_hook_pre main_pie


TEXT
${voffset 200}${color ffbb00}${font caviar dreams:size=8}
${font Radio Space Bold video:size=24}${goto 260}${time %H:%M:%S}
${font Radio Space Bold video:size=12}${goto 260}RAM: ${memperc}%
${voffset 10}${goto 260}Home:${fs_used_perc /}%
${goto 260}serenity ${fs_used_perc /media/serenity}%
${goto 260}Dead space:${fs_used_perc /media/Dead_space}%
${goto 260}Exodus:${fs_used_perc /media/EXODUS}%

clock.lua lié avec conky.conf

--[[PIE CHART WIDGET by Wlourf v1.3 07 Jan. 2011

This widget draw a pie chart or a ring in a conky window.
More info on the parameters with pictures on this page :
http://u-scripts.blogspot.com/2010/04/pie-chart-widget.html

To call the script in a conky, use, before TEXT
    lua_load /path/to/the/script/piechart.lua
    lua_draw_hook_pre main_rings
and add one line (blank or not) after TEXT

Parameters are :
tableV                -- table of labels and values {{label,conky_variable,conky_argument,convert to Go-Mo-Ko units (true/false) or unit}, ...}
                    -- this table is mandatory, others parameters are optionals
                    -- example :
                            tableV={
                                {"cpu 0","cpu","cpu0",100,"%"},
                                {"cpu 1","cpu","cpu1",100,"%"},                            
                                },
                    -- to know disk space, use this line :
                            tableV=read_df(false,true),    
                            1st argument : show _media
                            2nd argument : sort output array 
                            
xc                    -- x center of the pie, default = conky_window.width/2
yc,                    -- y center of the pie, default = conky_window.height/2
radius_int            -- internal radius in pixel, default = conky_window.width/6
radius_ext            -- external radius in pixel, default = conky_window.width/4
first_angle            -- first angle of the pie (in degrees), default=0
last_angle            -- last angle of the pie (in degrees), default=360
type_arc,            -- fill the arc in a linear way (ring) or radial way (pie), values l or r, default=l
inverse_l_arc        -- inverse arc for rings (true/false), default=false
proportional        -- display proportional sectors (true/false); default =false
gradient_effect     -- gradient effect (true/false), default=true
line_length            -- length for horizontal line (from radius_ext to end of line), default=radius_ext
line_thickness        -- thickness of line, default=1
line_space            -- vertical space between two lines, default=10 pixels
extend_line            -- grow up the line (true/false) if length of text> line_length, default=true
nb_decimals            -- number of decimals for numbers, default=1
show_text            -- display text (true/false), default=true
font_name            -- font, default "Japan"
font_size            -- font size, default=12
font_color            -- font color (for gradient) or nil (for constant color), default = nil
font_alpha            -- font alpha, default=1
txt_offset            -- space between text and line, default=1
txt_format            -- string for formatting text, possibles values are :  default = "&l : &v"
                        -- &l for label
                        -- &o for occupied percentage
                        -- &f for free percentage
                        -- &v for value 
                        -- &n for free value (non-occupied)    
                        -- &m for max value
                        -- &p for percentage value of full graph
tablebg                -- table of tables of colours for background {colors,alpha}
tablefg                -- table of tables of colours for foreground {colors,alpha}
draw_me             -- if set to false, text is not drawn (default = true or 1)
                       it can be used with a conky string, if the string returns 1, the text is drawn :
                       example : "${if_empty ${wireless_essid wlan0}}${else}1$endif",
    
    
v1.0  10/04/2010  original release
v1.1  15/05/2010  the parameters are in a table (pie_settings), only the values in pie_settings.tableV are mandatory
                 added an option to draw values like a ring (type_arc="l")
v1.2  26/05/2010     add inverse_l parameter (for type_arc="l")
                 bug fix : line_length problem
                 read_df function improved
v1.21 26/06/2010 rename some parameters and write more infos
v1.3  07/01/2011  Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"

--      This program is free software; you can redistribute it and/or modify
--      it under the terms of the GNU General Public License as published by
--      the Free Software Foundation version 3 (GPLv3)
--     
--      This program is distributed in the hope that it will be useful,
--      but WITHOUT ANY WARRANTY; without even the implied warranty of
--      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--      GNU General Public License for more details.
--     
--      You should have received a copy of the GNU General Public License
--      along with this program; if not, write to the Free Software
--      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
--      MA 02110-1301, USA.        
]]


require 'cairo'

--main function
function conky_main_pie()

    --flag used in this script to display or not text informations
    local file = io.open("/tmp/flag-conky-pie","r")    
    io.close()
    local flag_show_text=(file == nil)


-- ------------------PARAMETERS TO SET-----------------------
    --theses parameters are called many times so I put them into variables
    local rad0,rad1=50,75
    local lgth=75
    local font_name,font_size="FreeSans",14
    local col0,col1,col2=0x0920ff,0xc90016,0xec5f0a
    local h=conky_window.height
    
    --for the clock
    local temp = os.date("*t")
    local hour = temp.hour
    if hour>12 then hour=hour-12 end
    local hpc,mpc,spc=hour/12,temp.min/60,temp.sec/60

    local pie_settings= {

--CLOCK

    
        {
            tableV={
                {"hour.min","",1,1,""},
                {"hour.min","",0,11,""},
                },
            xc=330,yc=272,
            radius_int=110,
            radius_ext=140,        
            first_angle=hpc*360,
            last_angle=hpc*360+360,
            show_text=false,
            proportional=true,
            tablefg={
                {0xffbb00,0.5},
                },            
            tablebg={
                {0x79c4fd,0.5},
                },
        },                                
        {
            tableV={
                {"hour.min","",1,1,""},
                {"hour.min","",0,59,""},
                },
            xc=330,yc=272,
            radius_int=125,
            radius_ext=160,    
            first_angle=mpc*360,
            last_angle=mpc*360+360,
            show_text=false,
            proportional=true,
            tablefg={
                {0xffbb00,0.5},
                },
            tablebg={
                {0x79c4fd,1},
                },
        },                                
        {
            tableV={
                {"hour.min","",1,1,""},
                {"hour.min","",0,59,""},
                },
            xc=330,yc=272,                
            radius_int=145,        
            radius_ext=190,            
            first_angle=spc*360,
            last_angle=spc*360+360,
            show_text=false,
            proportional=true,
            tablefg={
                {0xffbb00,0.5},
                },
            tablebg={
                {0x79c4fd,1.5},
                }
                
        },    





    }
-------------------END OF PARAMETERS ---------------

    local w=conky_window.width
    local h=conky_window.height
    local cs=cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, w, h)
    local cr = cairo_create(cs)

    if tonumber(conky_parse('${updates}'))>5 then
        for i in pairs(pie_settings) do
            draw_pie(cr,pie_settings[i])
        end
    end
    cairo_surface_destroy(cs)
    cairo_destroy(cr)
    cr=nil
end



function string:split(delimiter)
--source for the split function : http://www.wellho.net/resources/ex.php4?item=u108/split
  local result = { }
  local from  = 1
  local delim_from, delim_to = string.find( self, delimiter, from  )
  while delim_from do
    table.insert( result, string.sub( self, from , delim_from-1 ) )
    from  = delim_to + 1
    delim_from, delim_to = string.find( self, delimiter, from  )
  end
  table.insert( result, string.sub( self, from  ) )
  return result
end


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

function round(num, idp)
    local mult = 10^(idp or 0)
    return math.floor(num * mult + 0.5) / mult
end

function size_to_text(size,nb_dec)
    local txt_v
    if nb_dec<0 then nb_dec=0 end
    size = tonumber(size)
    if size>1024*1024*1024 then
        txt_v=string.format("%."..nb_dec.."f Go",size/1024/1024/1024)
    elseif size>1024*1024 then 
        txt_v=string.format("%."..nb_dec.."f Mo",size/1024/1024)
    elseif size>1024 then 
        txt_v=string.format("%."..nb_dec.."f Ko",size/1024)
    else
        txt_v=string.format("%."..nb_dec.."f o",size)
    end
    return txt_v
end



function read_df(show_media,sort_table)
    --read output of command df and return arrays of value for files systems
    --reurn array of table {file syst, "", occupied space , total space , convert to G, M, K ...}
    
    local f = io.popen("df")

    local results={}

    while true do
         local line = f:read("*l")
         if line == nil then break end
         while string.match(line,"  ") do
             line=string.gsub(line,"  "," ")
         end
        local arr_l=string.split(line," ")
        local match = string.match(arr_l[1],"/")
        
        if string.match(arr_l[1],"/") then
--            if not show_media then arr_l[6]=string.gsub(arr_l[6],"/media/","",1) end
--            table.insert(results,{arr_l[6],"",(arr_l[2]-arr_l[4])*1024,arr_l[2]*1024,true})
        end
    end

    f:close()
    
    if sort_table then
        --how to sort table into table?
        local flagS=true
        while flagS do
            for k=2, #results do 
                flagS=false
                if tonumber(results[1][3])>tonumber(results[2][3]) then
                    local tmpV = results[1]
                    results[1] = results[2]
                    results[2] = tmpV
                    flagS=true
                end
                if tonumber(results[k][3])<tonumber(results[k-1][3]) then
                    local tmpV = results[k-1]
                    results[k-1] = results[k]
                    results[k] = tmpV
                    flagS=true
                end
            end
        end
    end
    
    return results --array {file syst, occupied space , total space }
end

function draw_pie(cr,t)

    if t.draw_me == true then t.draw_me = nil end
    if t.draw_me ~= nil and conky_parse(tostring(t.draw_me)) ~= "1" then return end    
        
    local lastAngle
    local lastPt2
    local tableV
    if t.tableV==nil then 
        print ("No input values ...") 
        return
    else
        tableV=t.tableV
    end

    if t.xc==nil then t.xc=conky_window.width/2 end
    if t.yc==nil then t.yc=conky_window.height/2 end
    if t.radius_int==nil then t.radius_int =conky_window.width/6 end
    if t.radius_ext==nil then t.radius_ext =conky_window.width/4 end
    if t.first_angle==nil then t.first_angle =0 end
    if t.last_angle==nil then t.last_angle=360 end
    if t.proportional==nil then t.proportional=false end
    if t.tablebg==nil then t.tablebg={{0xFFFFFF,0.5},{0xFFFFFF,0.5}} end
    if t.tablefg==nil then t.tablefg={{0xFF0000,1},{0x00FF00,1}} end
    if t.gradient_effect==nil then t.gradient_effect=true end
    if t.show_text==nil then t.show_text=true end
    if t.line_length==nil then t.line_length=t.radius_int end
    if t.line_space==nil then t.line_space=10 end
    if t.line_thickness==nil then t.line_thickness=1 end
    if t.extend_line==nil then t.extend_line=true end
    if t.font_name==nil then t.font_name="Japan" end
    if t.font_size==nil then t.font_size=12 end
    --if t.font_color==nil then t.font_color=0xFFFFFF end
    if t.font_alpha==nil then t.font_alpha = 1 end
    if t.txt_offset==nil then t.txt_offset = 1 end
    if t.txt_format==nil then t.txt_format = "&l : &v" end
    if t.nb_decimals==nil then t.nb_decimals=1 end
    if t.type_arc==nil then t.type_arc="l" end
    if t.inverse_l_arc==nil then t.inverse_l_arc=false end
    
    local radiuspc
    local angle0
    local function draw_sector(tablecolor,colorindex,pc,lastAngle,angle,radius,radius_int,gradient_effect,type_arc,inverse_l_arc)
        --draw a portion of arc
        radiuspc=(radius-radius_int)*pc+radius_int
        angle0=lastAngle
        local val=1
        if type_arc=="l" then 
            val=pc;radiuspc=radius
        end
        local angle1=angle*val

        if type_arc=="l" and inverse_l_arc then 

            cairo_save(cr)
            cairo_rotate(cr,angle0+angle)
            
            if gradient_effect then        
                local pat = cairo_pattern_create_radial (0,0, radius_int, 0,0,radius)
                cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
                cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_set_source (cr, pat)
                cairo_pattern_destroy(pat)
            else
                cairo_set_source_rgba(cr,rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
            end
            cairo_move_to(cr,0,-radius_int)
            cairo_line_to(cr,0,-radiuspc)
            cairo_rotate(cr,-math.pi/2)
        
            cairo_arc_negative(cr,0,0,radiuspc,0,-angle1)
            cairo_rotate(cr,-math.pi/2-angle1)
            cairo_line_to(cr,0,radius_int)
            cairo_rotate(cr,math.pi/2)
            cairo_arc(cr,0,0,radius_int,0,angle1)
            cairo_close_path (cr);
            cairo_fill(cr)

            cairo_restore(cr)
        else
        
            cairo_save(cr)
            cairo_rotate(cr,angle0)

            if gradient_effect then        
                local pat = cairo_pattern_create_radial (0,0, radius_int, 0,0,radius)
                cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
                cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_set_source (cr, pat)
                cairo_pattern_destroy(pat)
            else
                cairo_set_source_rgba(cr,rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
            end
            cairo_move_to(cr,0,-radius_int)
            cairo_line_to(cr,0,-radiuspc)
            cairo_rotate(cr,-math.pi/2)
        
            cairo_arc(cr,0,0,radiuspc,0,angle1)
            cairo_rotate(cr,angle1-math.pi/2)
            cairo_line_to(cr,0,radius_int)
            cairo_rotate(cr,math.pi/2)
            cairo_arc_negative(cr,0,0,radius_int,0,-angle1)
            cairo_close_path (cr);
            cairo_fill(cr)

            cairo_restore(cr)
        end
    end

    local function draw_lines(idx,nbArcs,angle,table_colors,idx_color,adjust,line_length,length_txt,txt_offset,radius,line_thickness,line_space,font_color,font_alpha)
        --draw lines
        
        local x0=radiuspc*math.sin(lastAngle+angle/2)
        local y0=-radiuspc*math.cos(lastAngle+angle/2)
        local x1=1.2*radius*math.sin(lastAngle+angle/2)
        local y1=-1.2*radius*math.cos(lastAngle+angle/2)

        local x2=line_length
        local y2=y1
        local x3,y3=nil,nil
        if x0<=0 then
            x2=-x2
        end

        if adjust then
            if x0>0 and x2-x1<length_txt then x2=x1+length_txt end
            if x0<=0 and x1-x2<length_txt then x2=x1-length_txt end            
        end 
        
        if idx>1 then
            local dY = math.abs(y2-lastPt2[2])
            if dY < line_space and lastPt2[1]*x1>0 then
                if x0>0 then
                    y2 = line_space+lastPt2[2]
                else
                    y2 = -line_space+lastPt2[2]
                end
                if (y2>y1 and x0>0) or (y2<y1 and x0<0 )  then
                    --x3 is for vertical segment if needed
                    x3,y3=x2,y2                    
                    x2=x1
                    if x3>0 then x3=x3+txt_offset end
                else
                    local Z=intercept({x0,y0},{x1,y1},{0,y2},{1,y2})
                    x1,y1=Z[1],Z[2]
                end
            end
        else
            --remind x2,y2 of first value
            --x2first,y2first = x2,y2
        end

        if font_color==nil then
            cairo_set_source_rgba(cr,rgb_to_r_g_b(table_colors[idx_color][1],table_colors[idx_color][2]))
        else
            local pat = cairo_pattern_create_linear (x2,y2, x0,y0)
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(font_color,font_alpha))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(table_colors[idx_color][1],table_colors[idx_color][2]))
            cairo_set_source (cr, pat)
            cairo_pattern_destroy(pat)
        end
        
        cairo_move_to(cr,x0,y0)
        cairo_line_to(cr,x1,y1)
        cairo_line_to(cr,x2,y2)
        if x3~=nil then 
            cairo_line_to(cr,x3,y3)
            x2,y2=x3,y3    
        end
        cairo_set_line_width(cr,line_thickness)
        cairo_stroke(cr)
        --lastAngle=lastAngle+angle
        return {x2,y2}
    end
    
    local function intercept(p11,p12,p21,p22)
        --calculate interscetion of two lines and return coordinates
        local a1=(p12[2]-p11[2])/(p12[1]-p11[1])
        local a2=(p22[2]-p21[2])/(p22[1]-p21[1])
        local b1=p11[2]-a1*p11[1]
        local b2=p21[2]-a2*p21[1]
        local X=(b2-b1)/(a1-a2)
        local Y=a1*X+b1
        return {X,Y}
    end

    --some checks
    if t.first_angle>=t.last_angle then
        local tmp_angle=t.last_angle
        t.last_angle=t.first_angle
        t.first_angle=tmp_angle
        print ("inversed angles")
    end

    if t.last_angle-t.first_angle>360 and t.first_angle>0 then
        t.last_angle=360+t.first_angle
        print ("reduce angles")
    end
    
    if t.last_angle+t.first_angle>360 and t.first_angle<=0 then
        t.last_angle=360+t.first_angle
        print ("reduce angles")
    end
    
    if t.radius_int<0 then t.radius_int =0 end
    if t.radius_int>t.radius_ext then
        local tmp_radius=t.radius_ext
        t.radius_ext = t.radius_int
        t.radius_int = tmp_radius
        print ("inversed angles")
    end
    if t.radius_int==t.radius_ext then
        t.radius_int=0
        print ("int radius_ext set to 0")
    end    
    --end of checks
    
    cairo_save(cr)
    cairo_translate(cr,t.xc,t.yc)
    cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND)
    cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND)
    
    local nbArcs=#tableV
    local anglefull= (t.last_angle-t.first_angle)*math.pi/180
    local fullsize = 0
    for i= 1,nbArcs do
        fullsize=fullsize+tableV[i][4]
    end

    local cb,cf,angle=0,0,anglefull/nbArcs
    lastAngle=t.first_angle*math.pi/180
    lastPt2={nil,nil}

    for i =1, nbArcs do
        if t.proportional then
            angle=tableV[i][4]/fullsize*anglefull
        end
        --set colours
        cb,cf=cb+1,cf+1
        if cb>#t.tablebg then cb=1 end
        if cf>#t.tablefg then cf=1 end
        
        local str
        if tableV[i][2]~="" then
            str=string.format('${%s %s}',tableV[i][2],tableV[i][3])
        else
            str = tableV[i][3]
        end
        str=conky_parse(str)
        local value=tonumber(str)
        if value==nil then value=0 end
    
        --draw sectors
        draw_sector(t.tablebg,cb,1,lastAngle,angle,t.radius_ext,t.radius_int,t.gradient_effect,t.type_arc,t.inverse_l_arc)
        draw_sector(t.tablefg,cf,value/tableV[i][4],lastAngle,angle,t.radius_ext,t.radius_int,t.gradient_effect,t.type_arc,t.inverse_l_arc)

        if t.show_text then
            --draw text
            local txt_l   = tableV[i][1]
            local txt_opc = round(100*value/tableV[i][4],t.nb_decimals).."%%"
            local txt_fpc = round(100*(tableV[i][4]-value/tableV[i][4]),t.nb_decimals).."%%"
            local txt_ov,txt_fv,txt_max
            if tableV[i][5]==true then
                txt_ov  = size_to_text(value,t.nb_decimals)
                txt_fv  = size_to_text(tableV[i][4]-value,t.nb_decimals)
                txt_max = size_to_text(tableV[i][4],t.nb_decimals)
            else
                if tableV[i][5]=="%" then tableV[i][5]="%%" end
                txt_ov=string.format("%."..t.nb_decimals.."f ",value)..tableV[i][5]
                txt_fv=string.format("%."..t.nb_decimals.."f",tableV[i][4]-value)..tableV[i][5]
                txt_max=string.format("%."..t.nb_decimals.."f",tableV[i][4])..tableV[i][5]
            end
            local txt_pc = string.format("%."..t.nb_decimals.."f",100*tableV[i][4]/fullsize).."%%"
            local txt_out = t.txt_format
            txt_out = string.gsub(txt_out,"&l",txt_l)  --label
            txt_out = string.gsub(txt_out,"&o",txt_opc)--occ. %
            txt_out = string.gsub(txt_out,"&f",txt_fpc)--free %
            txt_out = string.gsub(txt_out,"&v",txt_ov) --occ. value
            txt_out = string.gsub(txt_out,"&n",txt_fv) --free value
            txt_out = string.gsub(txt_out,"&m",txt_max)--max
            txt_out = string.gsub(txt_out,"&p",txt_pc)--percent
            
            local te=cairo_text_extents_t:create()
            tolua.takeownership(te)
            cairo_set_font_size(cr,t.font_size)
            cairo_select_font_face(cr, t.font_name, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL)
            cairo_text_extents (cr,txt_out,te)

            --draw lines 
            lastPt2=draw_lines(i,nbArcs,angle,t.tablefg,cf,t.extend_line,t.line_length+t.radius_ext, 
                    te.width + te.x_bearing,t.txt_offset,t.radius_ext,t.line_thickness,t.line_space,t.font_color,t.font_alpha)    
        
            local xA=lastPt2[1]
            local yA=lastPt2[2]-t.line_thickness-t.txt_offset
            if xA>0 then xA = xA-(te.width + te.x_bearing) end
            cairo_move_to(cr,xA,yA)
            cairo_show_text(cr,txt_out)
        end
        
        lastAngle=lastAngle+angle
    end
    lastAngle = nil
    lastPt2 = nil
    cairo_restore(cr)
end


--[[END OF PIE CHART WIDGET]]

cpu

# Conky settings #
background no
update_interval 1

cpu_avg_samples 2
net_avg_samples 2

override_utf8_locale yes

double_buffer yes
no_buffers yes

text_buffer_size 2048
imlib_cache_size 0

# Window specifications #

own_window yes
own_window_type override
own_window_transparent yes
own_window_hints undecorate,sticky,skip_taskbar,skip_pager,below

border_inner_margin 10
border_outer_margin 10

minimum_size 175 175
maximum_width 175

alignment tr
gap_x 375
gap_y 110

# Graphics settings #
draw_shades no
draw_outline no
draw_borders  no
draw_graph_borders no

# Text settings #
use_xft yes
xftfont caviar dreams:size=8
xftalpha 0.5

uppercase no

# Lua Load  #
lua_load ~/conky/script/cpu.lua
lua_draw_hook_pre main_bars

text
${font encient bold Video:size=10}${color 0e95fd}${goto 100}CPU
${goto 50}1 ${goto 85}2 ${goto 120}3 ${goto 155}4
${voffset 120}${goto 50}${color #FF6E00}${cpu cpu1}% ${goto 80}${color #CB0C29}${cpu cpu2}% ${goto 120}${color #49A835}${cpu cpu3}% ${goto 160}${color #872DB3}${cpu cpu4}%

cpu.lua

--[[ BARGRAPH WIDGET
    v2.1 by wlourf (07 Jan. 2011)
    this widget draws a bargraph with different effects 
    http://u-scripts.blogspot.com/2010/07/bargraph-widget.html
    
To call the script in a conky, use, before TEXT
    lua_load /path/to/the/script/bargraph.lua
    lua_draw_hook_pre main_rings
and add one line (blank or not) after TEXT

    
Parameters are :
3 parameters are mandatory
name    - the name of the conky variable to display, for example for {$cpu cpu0}, just write name="cpu"
arg        - the argument of the above variable, for example for {$cpu cpu0}, just write arg="cpu0"
          arg can be a numerical value if name=""
max        - the maximum value the above variable can reach, for example, for {$cpu cpu0}, just write max=100
    
Optional parameters:
x,y        - coordinates of the starting point of the bar, default = middle of the conky window
cap        - end of cap line, ossibles values are r,b,s (for round, butt, square), default="b"
          http://www.cairographics.org/samples/set_line_cap/
angle    - angle of rotation of the bar in degress, default = 0 (i.e. a vertical bar)
          set to 90 for an horizontal bar
skew_x    - skew bar around x axis, default = 0
skew_y    - skew bar around y axis, default = 0
blocks  - number of blocks to display for a bar (values >0) , default= 10
height    - height of a block, default=10 pixels
width    - width of a block, default=20 pixels
space    - space between 2 blocks, default=2 pixels
angle_bar    - this angle is used to draw a bar on a circular way (ok, this is no more a bar !) default=0
radius        - for cicular bars, internal radius, default=0
              with radius, parameter width has no more effect.

Colours below are defined into braces {colour in hexadecimal, alpha}
fg_colour    - colour of a block ON, default= {0x00FF00,1}
bg_colour    - colour of a block OFF, default = {0x00FF00,0.5}
alarm        - threshold, values after this threshold will use alarm_colour colour , default=max
alarm_colour - colour of a block greater than alarm, default=fg_colour
smooth        - (true or false), create a gradient from fg_colour to bg_colour, default=false 
mid_colour    - colours to add to gradient, with this syntax {position into the gradient (0 to1), colour hexa, alpha}
              for example, this table {{0.25,0xff0000,1},{0.5,0x00ff00,1},{0.75,0x0000ff,1}} will add
              3 colurs to gradient created by fg_colour and alarm_colour, default=no mid_colour
led_effect    - add LED effects to each block, default=no led_effect
              if smooth=true, led_effect is not used
              possibles values : "r","a","e" for radial, parallelel, perdendicular to the bar (just try!)
              led_effect has to be used with theses colours :
fg_led        - middle colour of a block ON, default = fg_colour
bg_led        - middle colour of a block OFF, default = bg_colour
alarm_led    - middle colour of a block > ALARM,  default = alarm_colour

reflection parameters, not avaimable for circular bars
reflection_alpha    - add a reflection effect (values from 0 to 1) default = 0 = no reflection
                      other values = starting opacity
reflection_scale    - scale of the reflection (default = 1 = height of text)
reflection_length   - length of reflection, define where the opacity will be set to zero
                      calues from 0 to 1, default =1
reflection            - position of reflection, relative to a vertical bar, default="b"
                      possibles values are : "b","t","l","r" for bottom, top, left, right
draw_me     - if set to false, text is not drawn (default = true or 1)
              it can be used with a conky string, if the string returns 1, the text is drawn :
              example : "${if_empty ${wireless_essid wlan0}}${else}1$endif",

v1.0 (10 Feb. 2010) original release
v1.1 (13 Feb. 2010) numeric values can be passed instead conky stats with parameters name="", arg = numeric_value    
v1.2 (28 Feb. 2010) just renamed the widget to bargraph
v1.3 (03 Mar. 2010) added parameters radius & angle_bar to draw the bar in a circular way
v2.0 (12 Jul. 2010) rewrite script + add reflection effects and parameters are now set into tables
v2.1 (07 Jan. 2011) Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"

--      This program is free software; you can redistribute it and/or modify
--      it under the terms of the GNU General Public License as published by
--      the Free Software Foundation version 3 (GPLv3)
--     
--      This program is distributed in the hope that it will be useful,
--      but WITHOUT ANY WARRANTY; without even the implied warranty of
--      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--      GNU General Public License for more details.
--     
--      You should have received a copy of the GNU General Public License
--      along with this program; if not, write to the Free Software
--      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
--      MA 02110-1301, USA.        

]]

require 'cairo'

----------------START OF PARAMETERS ----------
function conky_main_bars()
    local bars_settings={
        

        {
            name="cpu",
            arg="cpu1",
            max=60,
            bg_colour={0xA6F49F,0},
            fg_colour={0x00ff00,0},
            x=50,y=170,
            blocks=20,
            height=4,width=15,
            led_effect="r",
            fg_led={0xFF6E00,1},
            bg_led={0x79c4fd,0.5},
            draw_me=true,
        },    
{
            name="cpu",
            arg="cpu2",
            max=60,
            bg_colour={0xA6F49F,0},
            fg_colour={0x00ff00,0},
            x=85,y=170,
            blocks=20,
            height=4,width=15,
            led_effect="r",
            fg_led={0xCB0C29,1},
            bg_led={0x79c4fd,0.5},
            draw_me=true,
        },    
{
            name="cpu",
            arg="cpu3",
            max=60,
            bg_colour={0xA6F49F,0},
            fg_colour={0x00ff00,0},
            x=120,y=170,
            blocks=20,
            height=4,width=15,
            led_effect="r",
            fg_led={0x49A835,1},
            bg_led={0x79c4fd,0.5},
            draw_me=true,
        },    
{
            name="cpu",
            arg="cpu4",
            max=60,
            bg_colour={0xA6F49F,0},
            fg_colour={0x00ff00,0},
            x=155,y=170,
            blocks=20,
            height=4,width=15,
            led_effect="r",
            fg_led={0x872DB3,1},
            bg_led={0x79c4fd,0.5},
            draw_me=true,
        },    

        
                        
    }
    
-----------END OF PARAMETERS--------------


    
    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)
    
    cr = cairo_create(cs)    
    --prevent segmentation error when reading cpu state
    if tonumber(conky_parse('${updates}'))>3 then
        for i in pairs(bars_settings) do
            
            draw_multi_bar_graph(bars_settings[i])
            
        end
    end
    cairo_destroy(cr)
    cairo_surface_destroy(cs)
    cr=nil

end



function draw_multi_bar_graph(t)
    cairo_save(cr)
    --check values
    if t.draw_me == true then t.draw_me = nil end
    if t.draw_me ~= nil and conky_parse(tostring(t.draw_me)) ~= "1" then return end    
    if t.name==nil and t.arg==nil then 
        print ("No input values ... use parameters 'name' with 'arg' or only parameter 'arg' ") 
        return
    end
    if t.max==nil then
        print ("No maximum value defined, use 'max'")
        return
    end
    if t.name==nil then t.name="" end
    if t.arg==nil then t.arg="" end

    --set default values    
    if t.x == nil        then t.x = conky_window.width/2 end
    if t.y == nil        then t.y = conky_window.height/2 end
    if t.blocks == nil    then t.blocks=10 end
    if t.height == nil    then t.height=10 end
    if t.angle == nil     then t.angle=0 end
    t.angle = t.angle*math.pi/180
    --line cap style
    if t.cap==nil        then t.cap = "b" end
    local cap="b"
    for i,v in ipairs({"s","r","b"}) do 
        if v==t.cap then cap=v end
    end
    local delta=0
    if t.cap=="r" or t.cap=="s" then delta = t.height end
    if cap=="s" then     cap = CAIRO_LINE_CAP_SQUARE
    elseif cap=="r" then
        cap = CAIRO_LINE_CAP_ROUND
    elseif cap=="b" then
        cap = CAIRO_LINE_CAP_BUTT
    end
    --end line cap style
    --if t.led_effect == nil    then t.led_effect="r" end
    if t.width == nil    then t.width=20 end
    if t.space == nil    then t.space=2 end
    if t.radius == nil    then t.radius=0 end
    if t.angle_bar == nil    then t.angle_bar=0 end
    t.angle_bar = t.angle_bar*math.pi/360 --halt angle
    
    --colours
    if t.bg_colour == nil     then t.bg_colour = {0x00FF00,0.5} end
    if #t.bg_colour~=2         then t.bg_colour = {0x00FF00,0.5} end
    if t.fg_colour == nil     then t.fg_colour = {0x00FF00,1} end
    if #t.fg_colour~=2         then t.fg_colour = {0x00FF00,1} end
    if t.alarm_colour == nil     then t.alarm_colour = t.fg_colour end
    if #t.alarm_colour~=2         then t.alarm_colour = t.fg_colour end

    if t.mid_colour ~= nil then    
        for i=1, #t.mid_colour do    
            if #t.mid_colour[i]~=3 then 
                print ("error in mid_color table")
                t.mid_colour[i]={1,0xFFFFFF,1} 
            end
        end
    end
    
    if t.bg_led ~= nil and #t.bg_led~=2    then t.bg_led = t.bg_colour end
    if t.fg_led ~= nil and #t.fg_led~=2    then t.fg_led = t.fg_colour end
    if t.alarm_led~= nil and #t.alarm_led~=2 then t.alarm_led = t.fg_led end
    
    if t.led_effect~=nil then
        if t.bg_led == nil then t.bg_led = t.bg_colour end
        if t.fg_led == nil     then t.fg_led = t.fg_colour end
        if t.alarm_led == nil  then t.alarm_led = t.fg_led end
    end
    

    if t.alarm==nil then t.alarm = t.max end --0.8*t.max end
    if t.smooth == nil then t.smooth = false end

    if t.skew_x == nil then 
        t.skew_x=0 
    else
        t.skew_x = math.pi*t.skew_x/180    
    end
    if t.skew_y == nil then 
        t.skew_y=0
    else
        t.skew_y = math.pi*t.skew_y/180    
    end
    
    if t.reflection_alpha==nil then t.reflection_alpha=0 end
    if t.reflection_length==nil then t.reflection_length=1 end
    if t.reflection_scale==nil then t.reflection_scale=1 end
    
    --end of default values
    

     local function rgb_to_r_g_b(col_a)
        return ((col_a[1] / 0x10000) % 0x100) / 255., ((col_a[1] / 0x100) % 0x100) / 255., (col_a[1] % 0x100) / 255., col_a[2]
    end
    
    
    --functions used to create patterns

    local function create_smooth_linear_gradient(x0,y0,x1,y1)
        local pat = cairo_pattern_create_linear (x0,y0,x1,y1)
        cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(t.fg_colour))
        cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(t.alarm_colour))
        if t.mid_colour ~=nil then
            for i=1, #t.mid_colour do
                cairo_pattern_add_color_stop_rgba (pat, t.mid_colour[i][1], rgb_to_r_g_b({t.mid_colour[i][2],t.mid_colour[i][3]}))
            end
        end
        return pat
    end

    local function create_smooth_radial_gradient(x0,y0,r0,x1,y1,r1)
        local pat =  cairo_pattern_create_radial (x0,y0,r0,x1,y1,r1)
        cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(t.fg_colour))
        cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(t.alarm_colour))
        if t.mid_colour ~=nil then
            for i=1, #t.mid_colour do
                cairo_pattern_add_color_stop_rgba (pat, t.mid_colour[i][1], rgb_to_r_g_b({t.mid_colour[i][2],t.mid_colour[i][3]}))
            end
        end
        return pat
    end
    
    local function create_led_linear_gradient(x0,y0,x1,y1,col_alp,col_led)
        local pat = cairo_pattern_create_linear (x0,y0,x1,y1) ---delta, 0,delta+ t.width,0)
        cairo_pattern_add_color_stop_rgba (pat, 0.0, rgb_to_r_g_b(col_alp))
        cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(col_led))
        cairo_pattern_add_color_stop_rgba (pat, 1.0, rgb_to_r_g_b(col_alp))
        return pat
    end

    local function create_led_radial_gradient(x0,y0,r0,x1,y1,r1,col_alp,col_led,mode)
        local pat = cairo_pattern_create_radial (x0,y0,r0,x1,y1,r1)
        if mode==3 then
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(col_alp))                
            cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(col_led))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(col_alp))                
        else
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(col_led))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(col_alp))                
        end
        return pat
    end






    local function draw_single_bar()
        --this fucntion is used for bars with a single block (blocks=1) but 
        --the drawing is cut in 3 blocks : value/alarm/background
        --not zvzimzblr for circular bar
        local function create_pattern(col_alp,col_led,bg)
            local pat
            
            if not t.smooth then
                if t.led_effect=="e" then
                    pat = create_led_linear_gradient (-delta, 0,delta+ t.width,0,col_alp,col_led)
                elseif t.led_effect=="a" then
                    pat = create_led_linear_gradient (t.width/2, 0,t.width/2,-t.height,col_alp,col_led)
                elseif  t.led_effect=="r" then
                    pat = create_led_radial_gradient (t.width/2, -t.height/2, 0, t.width/2,-t.height/2,t.height/1.5,col_alp,col_led,2)
                else
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))
                end
            else
                if bg then
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(t.bg_colour))
                else
                    pat = create_smooth_linear_gradient(t.width/2, 0, t.width/2,-t.height)
                end
            end
            return pat
        end
        
        local y1=-t.height*pct/100
        local y2,y3
        if pct>(100*t.alarm/t.max) then 
            y1 = -t.height*t.alarm/100
            y2 = -t.height*pct/100
            if t.smooth then y1=y2 end
        end
        
        if t.angle_bar==0 then
        
            --block for fg value
            local pat = create_pattern(t.fg_colour,t.fg_led,false)
            cairo_set_source(cr,pat)
            cairo_rectangle(cr,0,0,t.width,y1)
            cairo_fill(cr)
            cairo_pattern_destroy(pat)
        
            -- block for alarm value            
            if not t.smooth and y2 ~=nil then 
                pat = create_pattern(t.alarm_colour,t.alarm_led,false)
                cairo_set_source(cr,pat)
                cairo_rectangle(cr,0,y1,t.width,y2-y1)
                cairo_fill(cr)
                y3=y2
                cairo_pattern_destroy(pat)
            else
                y2,y3=y1,y1
            end
            -- block for bg value
            cairo_rectangle(cr,0,y2,t.width,-t.height-y3)
            pat = create_pattern(t.bg_colour,t.bg_led,true)
            cairo_set_source(cr,pat)
            cairo_pattern_destroy(pat)
            cairo_fill(cr)
        end        
    end  --end single bar
    





    local function draw_multi_bar()
        --function used for bars with 2 or more blocks
        for pt = 1,t.blocks do 
            --set block y
            local y1 = -(pt-1)*(t.height+t.space)
            local light_on=false
            
            --set colors
            local col_alp = t.bg_colour
            local col_led = t.bg_led
            if pct>=(100/t.blocks) or pct>0 then --ligth on or not the block
                if pct>=(pcb*(pt-1))  then 
                    light_on = true
                    col_alp = t.fg_colour
                    col_led = t.fg_led
                    if pct>=(100*t.alarm/t.max) and (pcb*pt)>(100*t.alarm/t.max) then 
                        col_alp = t.alarm_colour 
                        col_led = t.alarm_led 
                    end
                end
            end

            --set colors
            --have to try to create gradients outside the loop ?
            local pat 
            
            if not t.smooth then
                if t.angle_bar==0 then
                    if t.led_effect=="e" then
                        pat = create_led_linear_gradient (-delta, 0,delta+ t.width,0,col_alp,col_led)
                    elseif t.led_effect=="a" then
                        pat = create_led_linear_gradient (t.width/2, -t.height/2+y1,t.width/2,0+t.height/2+y1,col_alp,col_led)                    
                    elseif  t.led_effect=="r" then
                        pat = create_led_radial_gradient (t.width/2, y1, 0, t.width/2,y1,t.width/1.5,col_alp,col_led,2)    
                    else
                        pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))
                    end
                else
                     if t.led_effect=="a"  then
                         pat = create_led_radial_gradient (0, 0, t.radius+(t.height+t.space)*(pt-1),
                                                         0, 0, t.radius+(t.height+t.space)*(pt),                         
                                             col_alp,col_led,3)    
                    else
                        pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(col_alp))                    
                    end
                    
                end
            else
                
                if light_on then
                    if t.angle_bar==0 then
                        pat = create_smooth_linear_gradient(t.width/2, t.height/2, t.width/2,-(t.blocks-0.5)*(t.height+t.space))
                    else
                        pat = create_smooth_radial_gradient(0, 0, (t.height+t.space),  0,0,(t.blocks+1)*(t.height+t.space),2)
                    end
                else        
                    pat = cairo_pattern_create_rgba  (rgb_to_r_g_b(t.bg_colour))
                end
            end
            cairo_set_source (cr, pat)
            cairo_pattern_destroy(pat)

            --draw a block
            if t.angle_bar==0 then
                cairo_move_to(cr,0,y1)
                cairo_line_to(cr,t.width,y1)
            else        
                cairo_arc( cr,0,0,
                    t.radius+(t.height+t.space)*(pt)-t.height/2,
                     -t.angle_bar -math.pi/2 ,
                     t.angle_bar -math.pi/2)
            end
            cairo_stroke(cr)
        end    
    end
    
    
    
    
    local function setup_bar_graph()
        --function used to retrieve the value to display and to set the cairo structure
        if t.blocks ~=1 then t.y=t.y-t.height/2 end
        
        local value = 0
        if t.name ~="" then
            value = tonumber(conky_parse(string.format('${%s %s}', t.name, t.arg)))
            --$to_bytes doesn't work when value has a decimal point,
            --https://garage.maemo.org/plugins/ggit/browse.php/?p=monky;a=commitdiff;h=174c256c81a027a2ea406f5f37dc036fac0a524b;hp=d75e2db5ed3fc788fb8514121f67316ac3e5f29f
            --http://sourceforge.net/tracker/index.php?func=detail&aid=3000865&group_id=143975&atid=757310
            --conky bug?
            --value = (conky_parse(string.format('${%s %s}', t.name, t.arg)))
            --if string.match(value,"%w") then
            --    value = conky_parse(string.format('${to_bytes %s}',value))
            --end
        else
            value = tonumber(t.arg)
        end

        if value==nil then value =0 end
        
        pct = 100*value/t.max
        pcb = 100/t.blocks
        
        cairo_set_line_width (cr, t.height)
        cairo_set_line_cap  (cr, cap)
        cairo_translate(cr,t.x,t.y)
        cairo_rotate(cr,t.angle)

        local matrix0 = cairo_matrix_t:create()
        tolua.takeownership(matrix0)
        cairo_matrix_init (matrix0, 1,t.skew_y,t.skew_x,1,0,0)
        cairo_transform(cr,matrix0)

    
        
        --call the drawing function for blocks
        if t.blocks==1 and t.angle_bar==0 then
            draw_single_bar()
            if t.reflection=="t" or t.reflection=="b" then cairo_translate(cr,0,-t.height) end
        else
            draw_multi_bar()
        end

        --dot for reminder
        --[[
        if t.blocks ~=1 then
            cairo_set_source_rgba(cr,1,0,0,1)
            cairo_arc(cr,0,t.height/2,3,0,2*math.pi)
            cairo_fill(cr)
        else
            cairo_set_source_rgba(cr,1,0,0,1)
            cairo_arc(cr,0,0,3,0,2*math.pi)
            cairo_fill(cr)
        end]]
        
        --call the drawing function for reflection and prepare the mask used        
        if t.reflection_alpha>0 and t.angle_bar==0 then
            local pat2
            local matrix1 = cairo_matrix_t:create()
            tolua.takeownership(matrix1)
            if t.angle_bar==0 then
                pts={-delta/2,(t.height+t.space)/2,t.width+delta,-(t.height+t.space)*(t.blocks)}
                if t.reflection=="t" then
                    cairo_matrix_init (matrix1,1,0,0,-t.reflection_scale,0,-(t.height+t.space)*(t.blocks-0.5)*2*(t.reflection_scale+1)/2)
                    pat2 = cairo_pattern_create_linear (t.width/2,-(t.height+t.space)*(t.blocks),t.width/2,(t.height+t.space)/2)
                elseif t.reflection=="r" then
                    cairo_matrix_init (matrix1,-t.reflection_scale,0,0,1,delta+2*t.width,0)
                    pat2 = cairo_pattern_create_linear (delta/2+t.width,0,-delta/2,0)
                elseif t.reflection=="l" then
                    cairo_matrix_init (matrix1,-t.reflection_scale,0,0,1,-delta,0)
                    pat2 = cairo_pattern_create_linear (-delta/2,0,delta/2+t.width,-0)
                else --bottom
                    cairo_matrix_init (matrix1,1,0,0,-1*t.reflection_scale,0,(t.height+t.space)*(t.reflection_scale+1)/2)
                    pat2 = cairo_pattern_create_linear (t.width/2,(t.height+t.space)/2,t.width/2,-(t.height+t.space)*(t.blocks))
                end
            end
            cairo_transform(cr,matrix1)

            if t.blocks==1 and t.angle_bar==0 then
                draw_single_bar()
                cairo_translate(cr,0,-t.height/2) 
            else
                draw_multi_bar()
            end
            
            
            cairo_set_line_width(cr,0.01)
            cairo_pattern_add_color_stop_rgba (pat2, 0,0,0,0,1-t.reflection_alpha)
            cairo_pattern_add_color_stop_rgba (pat2, t.reflection_length,0,0,0,1)
            if t.angle_bar==0 then
                cairo_rectangle(cr,pts[1],pts[2],pts[3],pts[4])
            end
            cairo_clip_preserve(cr)
            cairo_set_operator(cr,CAIRO_OPERATOR_CLEAR)
            cairo_stroke(cr)
            cairo_mask(cr,pat2)
            cairo_pattern_destroy(pat2)
            cairo_set_operator(cr,CAIRO_OPERATOR_OVER)
            
        end --reflection
        pct,pcb=nil
    end --setup_bar_graph()
    
    --start here !
    setup_bar_graph()
    cairo_restore(cr)
end

net

# Conky settings #
background no
update_interval 1

cpu_avg_samples 2
net_avg_samples 2

override_utf8_locale yes

double_buffer yes
no_buffers yes

text_buffer_size 2048
imlib_cache_size 0

# Window specifications #

own_window yes
own_window_type override
own_window_transparent yes
own_window_hints undecorate,sticky,skip_taskbar,skip_pager,below

border_inner_margin 10
border_outer_margin 10

minimum_size 175 175
maximum_width 175

alignment tr
gap_x 1120
gap_y 110

# Graphics settings #
draw_shades no
draw_outline no
draw_borders no
draw_graph_borders no

# Text settings #
use_xft yes
xftfont caviar dreams:size=8
xftalpha 0.5

uppercase no

# Lua Load  #
lua_load /home/maestroom/conky/script/net.lua
lua_draw_hook_pre main_pie

text
${font caviar dreams:size=12}
${voffset 50}${color 85cb8d}${goto 15}down:${color ec5f0a}${goto 130}up:
${goto 15}${color 85cb8d}${downspeed eth2}${goto 130}${color ec5f0a}${upspeed eth2}

net.lua

--[[PIE CHART WIDGET by Wlourf v1.3 07 Jan. 2011

This widget draw a pie chart or a ring in a conky window.
More info on the parameters with pictures on this page :
http://u-scripts.blogspot.com/2010/04/pie-chart-widget.html

To call the script in a conky, use, before TEXT
    lua_load /path/to/the/script/piechart.lua
    lua_draw_hook_pre main_rings
and add one line (blank or not) after TEXT

Parameters are :
tableV                -- table of labels and values {{label,conky_variable,conky_argument,convert to Go-Mo-Ko units (true/false) or unit}, ...}
                    -- this table is mandatory, others parameters are optionals
                    -- example :
                            tableV={
                                {"cpu 0","cpu","cpu0",100,"%"},
                                {"cpu 1","cpu","cpu1",100,"%"},                            
                                },
                    -- to know disk space, use this line :
                            tableV=read_df(false,true),    
                            1st argument : show _media
                            2nd argument : sort output array 
                            
xc                    -- x center of the pie, default = conky_window.width/2
yc,                    -- y center of the pie, default = conky_window.height/2
radius_int            -- internal radius in pixel, default = conky_window.width/6
radius_ext            -- external radius in pixel, default = conky_window.width/4
first_angle            -- first angle of the pie (in degrees), default=0
last_angle            -- last angle of the pie (in degrees), default=360
type_arc,            -- fill the arc in a linear way (ring) or radial way (pie), values l or r, default=l
inverse_l_arc        -- inverse arc for rings (true/false), default=false
proportional        -- display proportional sectors (true/false); default =false
gradient_effect     -- gradient effect (true/false), default=true
line_length            -- length for horizontal line (from radius_ext to end of line), default=radius_ext
line_thickness        -- thickness of line, default=1
line_space            -- vertical space between two lines, default=10 pixels
extend_line            -- grow up the line (true/false) if length of text> line_length, default=true
nb_decimals            -- number of decimals for numbers, default=1
show_text            -- display text (true/false), default=true
font_name            -- font, default "Japan"
font_size            -- font size, default=12
font_color            -- font color (for gradient) or nil (for constant color), default = nil
font_alpha            -- font alpha, default=1
txt_offset            -- space between text and line, default=1
txt_format            -- string for formatting text, possibles values are :  default = "&l : &v"
                        -- &l for label
                        -- &o for occupied percentage
                        -- &f for free percentage
                        -- &v for value 
                        -- &n for free value (non-occupied)    
                        -- &m for max value
                        -- &p for percentage value of full graph
tablebg                -- table of tables of colours for background {colors,alpha}
tablefg                -- table of tables of colours for foreground {colors,alpha}
draw_me             -- if set to false, text is not drawn (default = true or 1)
                       it can be used with a conky string, if the string returns 1, the text is drawn :
                       example : "${if_empty ${wireless_essid wlan0}}${else}1$endif",
    
    
v1.0  10/04/2010  original release
v1.1  15/05/2010  the parameters are in a table (pie_settings), only the values in pie_settings.tableV are mandatory
                 added an option to draw values like a ring (type_arc="l")
v1.2  26/05/2010     add inverse_l parameter (for type_arc="l")
                 bug fix : line_length problem
                 read_df function improved
v1.21 26/06/2010 rename some parameters and write more infos
v1.3  07/01/2011  Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"

--      This program is free software; you can redistribute it and/or modify
--      it under the terms of the GNU General Public License as published by
--      the Free Software Foundation version 3 (GPLv3)
--     
--      This program is distributed in the hope that it will be useful,
--      but WITHOUT ANY WARRANTY; without even the implied warranty of
--      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--      GNU General Public License for more details.
--     
--      You should have received a copy of the GNU General Public License
--      along with this program; if not, write to the Free Software
--      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
--      MA 02110-1301, USA.        
]]


require 'cairo'

--main function
function conky_main_pie()

    --flag used in this script to display or not text informations
    local file = io.open("/tmp/flag-conky-pie","r")    
    io.close()
    local flag_show_text=(file == nil)


-- ------------------PARAMETERS TO SET-----------------------
    --theses parameters are called many times so I put them into variables
    local rad0,rad1=50,75
    local lgth=75
    local font_name,font_size="FreeSans",14
    local col0,col1,col2=0x85cb8d,0xc90016,0xec5f0a
    local h=conky_window.height
    
    --for the clock
    local temp = os.date("*t")
    local hour = temp.hour
    if hour>12 then hour=hour-12 end
    local hpc,mpc,spc=hour/12,temp.min/60,temp.sec/60

    local pie_settings= {
        {--CIRCLE 1 : ARCS 1 & 2 INTERNET SPEED
            tableV={
                {"dl","downspeedf","eth2",800,"kb/s"},
                {"ul","upspeedf","eth2",300,"kb/s"},
                },
            xc=105,
            yc=h-135,
            radius_int=40,
            radius_ext=rad1,
            first_angle=-90,
            last_angle=90,
            type_arc="r",
            line_length=30,
            show_text=false,
            txt_format="&l : &v",
            tablebg={
                {0x79c4fd,0.5},
                },
            tablefg={
                {col0,1},
                {col1,1},
                }
                
        },        




    }
-------------------END OF PARAMETERS ---------------

    local w=conky_window.width
    local h=conky_window.height
    local cs=cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, w, h)
    local cr = cairo_create(cs)

    if tonumber(conky_parse('${updates}'))>5 then
        for i in pairs(pie_settings) do
            draw_pie(cr,pie_settings[i])
        end
    end
    cairo_surface_destroy(cs)
    cairo_destroy(cr)
    cr=nil
end



function string:split(delimiter)
--source for the split function : http://www.wellho.net/resources/ex.php4?item=u108/split
  local result = { }
  local from  = 1
  local delim_from, delim_to = string.find( self, delimiter, from  )
  while delim_from do
    table.insert( result, string.sub( self, from , delim_from-1 ) )
    from  = delim_to + 1
    delim_from, delim_to = string.find( self, delimiter, from  )
  end
  table.insert( result, string.sub( self, from  ) )
  return result
end


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

function round(num, idp)
    local mult = 10^(idp or 0)
    return math.floor(num * mult + 0.5) / mult
end

function size_to_text(size,nb_dec)
    local txt_v
    if nb_dec<0 then nb_dec=0 end
    size = tonumber(size)
    if size>1024*1024*1024 then
        txt_v=string.format("%."..nb_dec.."f Go",size/1024/1024/1024)
    elseif size>1024*1024 then 
        txt_v=string.format("%."..nb_dec.."f Mo",size/1024/1024)
    elseif size>1024 then 
        txt_v=string.format("%."..nb_dec.."f Ko",size/1024)
    else
        txt_v=string.format("%."..nb_dec.."f o",size)
    end
    return txt_v
end



function read_df(show_media,sort_table)
    --read output of command df and return arrays of value for files systems
    --reurn array of table {file syst, "", occupied space , total space , convert to G, M, K ...}
    
    local f = io.popen("df")

    local results={}

    while true do
         local line = f:read("*l")
         if line == nil then break end
         while string.match(line,"  ") do
             line=string.gsub(line,"  "," ")
         end
        local arr_l=string.split(line," ")
        local match = string.match(arr_l[1],"/")
        
        if string.match(arr_l[1],"/") then
--            if not show_media then arr_l[6]=string.gsub(arr_l[6],"/media/","",1) end
--            table.insert(results,{arr_l[6],"",(arr_l[2]-arr_l[4])*1024,arr_l[2]*1024,true})
        end
    end

    f:close()
    
    if sort_table then
        --how to sort table into table?
        local flagS=true
        while flagS do
            for k=2, #results do 
                flagS=false
                if tonumber(results[1][3])>tonumber(results[2][3]) then
                    local tmpV = results[1]
                    results[1] = results[2]
                    results[2] = tmpV
                    flagS=true
                end
                if tonumber(results[k][3])<tonumber(results[k-1][3]) then
                    local tmpV = results[k-1]
                    results[k-1] = results[k]
                    results[k] = tmpV
                    flagS=true
                end
            end
        end
    end
    
    return results --array {file syst, occupied space , total space }
end

function draw_pie(cr,t)

    if t.draw_me == true then t.draw_me = nil end
    if t.draw_me ~= nil and conky_parse(tostring(t.draw_me)) ~= "1" then return end    
        
    local lastAngle
    local lastPt2
    local tableV
    if t.tableV==nil then 
        print ("No input values ...") 
        return
    else
        tableV=t.tableV
    end

    if t.xc==nil then t.xc=conky_window.width/2 end
    if t.yc==nil then t.yc=conky_window.height/2 end
    if t.radius_int==nil then t.radius_int =conky_window.width/6 end
    if t.radius_ext==nil then t.radius_ext =conky_window.width/4 end
    if t.first_angle==nil then t.first_angle =0 end
    if t.last_angle==nil then t.last_angle=360 end
    if t.proportional==nil then t.proportional=false end
    if t.tablebg==nil then t.tablebg={{0xFFFFFF,0.5},{0xFFFFFF,0.5}} end
    if t.tablefg==nil then t.tablefg={{0xFF0000,1},{0x00FF00,1}} end
    if t.gradient_effect==nil then t.gradient_effect=true end
    if t.show_text==nil then t.show_text=true end
    if t.line_length==nil then t.line_length=t.radius_int end
    if t.line_space==nil then t.line_space=10 end
    if t.line_thickness==nil then t.line_thickness=1 end
    if t.extend_line==nil then t.extend_line=true end
    if t.font_name==nil then t.font_name="Japan" end
    if t.font_size==nil then t.font_size=12 end
    --if t.font_color==nil then t.font_color=0xFFFFFF end
    if t.font_alpha==nil then t.font_alpha = 1 end
    if t.txt_offset==nil then t.txt_offset = 1 end
    if t.txt_format==nil then t.txt_format = "&l : &v" end
    if t.nb_decimals==nil then t.nb_decimals=1 end
    if t.type_arc==nil then t.type_arc="l" end
    if t.inverse_l_arc==nil then t.inverse_l_arc=false end
    
    local radiuspc
    local angle0
    local function draw_sector(tablecolor,colorindex,pc,lastAngle,angle,radius,radius_int,gradient_effect,type_arc,inverse_l_arc)
        --draw a portion of arc
        radiuspc=(radius-radius_int)*pc+radius_int
        angle0=lastAngle
        local val=1
        if type_arc=="l" then 
            val=pc;radiuspc=radius
        end
        local angle1=angle*val

        if type_arc=="l" and inverse_l_arc then 

            cairo_save(cr)
            cairo_rotate(cr,angle0+angle)
            
            if gradient_effect then        
                local pat = cairo_pattern_create_radial (0,0, radius_int, 0,0,radius)
                cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
                cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_set_source (cr, pat)
                cairo_pattern_destroy(pat)
            else
                cairo_set_source_rgba(cr,rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
            end
            cairo_move_to(cr,0,-radius_int)
            cairo_line_to(cr,0,-radiuspc)
            cairo_rotate(cr,-math.pi/2)
        
            cairo_arc_negative(cr,0,0,radiuspc,0,-angle1)
            cairo_rotate(cr,-math.pi/2-angle1)
            cairo_line_to(cr,0,radius_int)
            cairo_rotate(cr,math.pi/2)
            cairo_arc(cr,0,0,radius_int,0,angle1)
            cairo_close_path (cr);
            cairo_fill(cr)

            cairo_restore(cr)
        else
        
            cairo_save(cr)
            cairo_rotate(cr,angle0)

            if gradient_effect then        
                local pat = cairo_pattern_create_radial (0,0, radius_int, 0,0,radius)
                cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_pattern_add_color_stop_rgba (pat, 0.5, rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
                cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(tablecolor[colorindex][1],0))
                cairo_set_source (cr, pat)
                cairo_pattern_destroy(pat)
            else
                cairo_set_source_rgba(cr,rgb_to_r_g_b(tablecolor[colorindex][1],tablecolor[colorindex][2]))
            end
            cairo_move_to(cr,0,-radius_int)
            cairo_line_to(cr,0,-radiuspc)
            cairo_rotate(cr,-math.pi/2)
        
            cairo_arc(cr,0,0,radiuspc,0,angle1)
            cairo_rotate(cr,angle1-math.pi/2)
            cairo_line_to(cr,0,radius_int)
            cairo_rotate(cr,math.pi/2)
            cairo_arc_negative(cr,0,0,radius_int,0,-angle1)
            cairo_close_path (cr);
            cairo_fill(cr)

            cairo_restore(cr)
        end
    end

    local function draw_lines(idx,nbArcs,angle,table_colors,idx_color,adjust,line_length,length_txt,txt_offset,radius,line_thickness,line_space,font_color,font_alpha)
        --draw lines
        
        local x0=radiuspc*math.sin(lastAngle+angle/2)
        local y0=-radiuspc*math.cos(lastAngle+angle/2)
        local x1=1.2*radius*math.sin(lastAngle+angle/2)
        local y1=-1.2*radius*math.cos(lastAngle+angle/2)

        local x2=line_length
        local y2=y1
        local x3,y3=nil,nil
        if x0<=0 then
            x2=-x2
        end

        if adjust then
            if x0>0 and x2-x1<length_txt then x2=x1+length_txt end
            if x0<=0 and x1-x2<length_txt then x2=x1-length_txt end            
        end 
        
        if idx>1 then
            local dY = math.abs(y2-lastPt2[2])
            if dY < line_space and lastPt2[1]*x1>0 then
                if x0>0 then
                    y2 = line_space+lastPt2[2]
                else
                    y2 = -line_space+lastPt2[2]
                end
                if (y2>y1 and x0>0) or (y2<y1 and x0<0 )  then
                    --x3 is for vertical segment if needed
                    x3,y3=x2,y2                    
                    x2=x1
                    if x3>0 then x3=x3+txt_offset end
                else
                    local Z=intercept({x0,y0},{x1,y1},{0,y2},{1,y2})
                    x1,y1=Z[1],Z[2]
                end
            end
        else
            --remind x2,y2 of first value
            --x2first,y2first = x2,y2
        end

        if font_color==nil then
            cairo_set_source_rgba(cr,rgb_to_r_g_b(table_colors[idx_color][1],table_colors[idx_color][2]))
        else
            local pat = cairo_pattern_create_linear (x2,y2, x0,y0)
            cairo_pattern_add_color_stop_rgba (pat, 0, rgb_to_r_g_b(font_color,font_alpha))
            cairo_pattern_add_color_stop_rgba (pat, 1, rgb_to_r_g_b(table_colors[idx_color][1],table_colors[idx_color][2]))
            cairo_set_source (cr, pat)
            cairo_pattern_destroy(pat)
        end
        
        cairo_move_to(cr,x0,y0)
        cairo_line_to(cr,x1,y1)
        cairo_line_to(cr,x2,y2)
        if x3~=nil then 
            cairo_line_to(cr,x3,y3)
            x2,y2=x3,y3    
        end
        cairo_set_line_width(cr,line_thickness)
        cairo_stroke(cr)
        --lastAngle=lastAngle+angle
        return {x2,y2}
    end
    
    local function intercept(p11,p12,p21,p22)
        --calculate interscetion of two lines and return coordinates
        local a1=(p12[2]-p11[2])/(p12[1]-p11[1])
        local a2=(p22[2]-p21[2])/(p22[1]-p21[1])
        local b1=p11[2]-a1*p11[1]
        local b2=p21[2]-a2*p21[1]
        local X=(b2-b1)/(a1-a2)
        local Y=a1*X+b1
        return {X,Y}
    end

    --some checks
    if t.first_angle>=t.last_angle then
        local tmp_angle=t.last_angle
        t.last_angle=t.first_angle
        t.first_angle=tmp_angle
        print ("inversed angles")
    end

    if t.last_angle-t.first_angle>360 and t.first_angle>0 then
        t.last_angle=360+t.first_angle
        print ("reduce angles")
    end
    
    if t.last_angle+t.first_angle>360 and t.first_angle<=0 then
        t.last_angle=360+t.first_angle
        print ("reduce angles")
    end
    
    if t.radius_int<0 then t.radius_int =0 end
    if t.radius_int>t.radius_ext then
        local tmp_radius=t.radius_ext
        t.radius_ext = t.radius_int
        t.radius_int = tmp_radius
        print ("inversed angles")
    end
    if t.radius_int==t.radius_ext then
        t.radius_int=0
        print ("int radius_ext set to 0")
    end    
    --end of checks
    
    cairo_save(cr)
    cairo_translate(cr,t.xc,t.yc)
    cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND)
    cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND)
    
    local nbArcs=#tableV
    local anglefull= (t.last_angle-t.first_angle)*math.pi/180
    local fullsize = 0
    for i= 1,nbArcs do
        fullsize=fullsize+tableV[i][4]
    end

    local cb,cf,angle=0,0,anglefull/nbArcs
    lastAngle=t.first_angle*math.pi/180
    lastPt2={nil,nil}

    for i =1, nbArcs do
        if t.proportional then
            angle=tableV[i][4]/fullsize*anglefull
        end
        --set colours
        cb,cf=cb+1,cf+1
        if cb>#t.tablebg then cb=1 end
        if cf>#t.tablefg then cf=1 end
        
        local str
        if tableV[i][2]~="" then
            str=string.format('${%s %s}',tableV[i][2],tableV[i][3])
        else
            str = tableV[i][3]
        end
        str=conky_parse(str)
        local value=tonumber(str)
        if value==nil then value=0 end
    
        --draw sectors
        draw_sector(t.tablebg,cb,1,lastAngle,angle,t.radius_ext,t.radius_int,t.gradient_effect,t.type_arc,t.inverse_l_arc)
        draw_sector(t.tablefg,cf,value/tableV[i][4],lastAngle,angle,t.radius_ext,t.radius_int,t.gradient_effect,t.type_arc,t.inverse_l_arc)

        if t.show_text then
            --draw text
            local txt_l   = tableV[i][1]
            local txt_opc = round(100*value/tableV[i][4],t.nb_decimals).."%%"
            local txt_fpc = round(100*(tableV[i][4]-value/tableV[i][4]),t.nb_decimals).."%%"
            local txt_ov,txt_fv,txt_max
            if tableV[i][5]==true then
                txt_ov  = size_to_text(value,t.nb_decimals)
                txt_fv  = size_to_text(tableV[i][4]-value,t.nb_decimals)
                txt_max = size_to_text(tableV[i][4],t.nb_decimals)
            else
                if tableV[i][5]=="%" then tableV[i][5]="%%" end
                txt_ov=string.format("%."..t.nb_decimals.."f ",value)..tableV[i][5]
                txt_fv=string.format("%."..t.nb_decimals.."f",tableV[i][4]-value)..tableV[i][5]
                txt_max=string.format("%."..t.nb_decimals.."f",tableV[i][4])..tableV[i][5]
            end
            local txt_pc = string.format("%."..t.nb_decimals.."f",100*tableV[i][4]/fullsize).."%%"
            local txt_out = t.txt_format
            txt_out = string.gsub(txt_out,"&l",txt_l)  --label
            txt_out = string.gsub(txt_out,"&o",txt_opc)--occ. %
            txt_out = string.gsub(txt_out,"&f",txt_fpc)--free %
            txt_out = string.gsub(txt_out,"&v",txt_ov) --occ. value
            txt_out = string.gsub(txt_out,"&n",txt_fv) --free value
            txt_out = string.gsub(txt_out,"&m",txt_max)--max
            txt_out = string.gsub(txt_out,"&p",txt_pc)--percent
            
            local te=cairo_text_extents_t:create()
            tolua.takeownership(te)
            cairo_set_font_size(cr,t.font_size)
            cairo_select_font_face(cr, t.font_name, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL)
            cairo_text_extents (cr,txt_out,te)

            --draw lines 
            lastPt2=draw_lines(i,nbArcs,angle,t.tablefg,cf,t.extend_line,t.line_length+t.radius_ext, 
                    te.width + te.x_bearing,t.txt_offset,t.radius_ext,t.line_thickness,t.line_space,t.font_color,t.font_alpha)    
        
            local xA=lastPt2[1]
            local yA=lastPt2[2]-t.line_thickness-t.txt_offset
            if xA>0 then xA = xA-(te.width + te.x_bearing) end
            cairo_move_to(cr,xA,yA)
            cairo_show_text(cr,txt_out)
        end
        
        lastAngle=lastAngle+angle
    end
    lastAngle = nil
    lastPt2 = nil
    cairo_restore(cr)
end


--[[END OF PIE CHART WIDGET]]

et pour finir le flag-pie.sh

#!/bin/bash
flag="/tmp/flag-conky-pie"
if [ -f $flag ]; then
    rm $flag
else
    echo > $flag
fi

CM: Asus Maximus extreme VI/ cpu: intel Core I7-4770 /carte graphique: nvidia GTX 760 /os: Ubuntu gnome-shell 14.04 "" 64 bits avec dual boot windows 8.1 64bit

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