Code:
--[[ RINGS with SECTORS widget
v1.1 by wlourf (07 Jan. 2011)
edited by Caymus
this widget draws a ring with differents effects
http://u-scripts.blogspot.com/2010/08/rings-sectors-widgets.html
To call the script in a conky, use, before TEXT
lua_load /path/to/the/script/rings.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:
xc,yc - coordinates of the center of the ring,
default = middle of the conky window
radius - external radius of the ring, in pixels,
default = quarter of the width of the conky window
thickness - thickness of the ring, in pixels, default = 10 pixels
start_angle - starting angle of the ring, in degrees, value can be negative,
default = 0 degree
end_angle - ending angle of the ring, in degrees,
value must be greater than start_angle, default = 360 degrees
sectors - number of sectors in the ring, default = 10
gap_sectors - gap between two sectors, in pixels, default = 1 pixel
cap - the way to close a sector, available values are
"p" for parallel , default value
"r" for radial (follow the radius)
inverse_arc - if set to true, arc will be anticlockwise, default=false
border_size - size of the border, in pixels, default = 0 pixel i.e. no border
fill_sector - if set to true, each sector will be completely filled,
default=false, this parameter is inoperate if sectors=1
background - if set to false, background will not be drawn, default=true
foreground - if set to false, foreground will not be drawn, default=true
Colours tables below are defined into braces :
{position in the gradient (0 to 1), colour in hexadecimal, alpha (0 to 1)}
example for a single colour table :
{{0,0xFFAA00,1}} position parameter doesn't matter
example for a two-colours table :
{{0,0xFFAA00,1},{1,0x00AA00,1}} or {{0.5,0xFFAA00,1},{1,0x00AA00,1}}
example for a three-colours table :
{{0,0xFFAA00,1},{0.5,0xFF0000,1},{1,0x00AA00,1}}
bg_colour1 - colour table for background,
default = {{0,0x00ffff,0.1},{0.5,0x00FFFF,0.5},{1,0x00FFFF,0.1}}
fg_colour1 - colour table for foreground,
default = {{0,0x00FF00,0.1},{0.5,0x00FF00,1},{1,0x00FF00,0.1}}
bd_colour1 - colour table for border,
default = {{0,0xFFFF00,0.5},{0.5,0xFFFF00,1},{1,0xFFFF00,0.5}}
Seconds tables for radials gradients :
bg_colour2 - second colour table for background, default = no second colour
fg_colour2 - second colour table for foreground, default = no second colour
bd_colour2 - second colour table for border, default = no second colour
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 (08 Aug. 2010) original release
v1.1 (07 Jan. 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
-- 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_main_rings()
-- START PARAMETERS HERE
local rings_settings={
{
name="cpu",
arg="cpu1",
max=100,
xc=60,
yc=100,
thickness=10,
radius=60,
start_angle=5,
end_angle=175,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="cpu",
arg="cpu2",
max=100,
xc=60,
yc=100,
thickness=10,
radius=60,
start_angle=185,
end_angle=355,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="memperc",
arg="",
max=100,
xc=200,
yc=100,
thickness=10,
radius=60,
start_angle=5,
end_angle=175,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="swapperc",
arg="",
max=100,
xc=200,
yc=100,
thickness=10,
radius=60,
start_angle=185,
end_angle=355,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="fs_used_perc",
arg="/home",
max=100,
xc=200,
yc=240,
thickness=10,
radius=60,
start_angle=5,
end_angle=175,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="fs_used_perc",
arg="/",
max=100,
xc=200,
yc=240,
thickness=10,
radius=60,
start_angle=185,
end_angle=355,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="downspeedf",
arg="eth0",
max=100,
xc=230,
yc=375,
thickness=5,
radius=30,
start_angle=5,
end_angle=175,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="upspeedf",
arg="eth0",
max=100,
xc=230,
yc=375,
thickness=5,
radius=30,
start_angle=185,
end_angle=355,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="downspeedf",
arg="wlan0",
max=100,
xc=230,
yc=450,
thickness=5,
radius=30,
start_angle=5,
end_angle=175,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
{
name="upspeedf",
arg="wlan0",
max=100,
xc=230,
yc=450,
thickness=5,
radius=30,
start_angle=185,
end_angle=355,
sectors=20,
bg_colour1={{0,0xFFFFFF,0.1},{0.5,0xFFFFFF,0.4},{1,0xFFFFFF,0.1}},
fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1.0},{1,0x00FF00,0.1}},
fg_colour2={{0,0xFF0000,0.1},{0.5,0xFF0000,1.0},{1,0xFF0000,0.1}},
},
}
--END OF PARAMETERS HERE
--main function
if conky_window==nil then return end
local cs=cairo_xlib_surface_create(conky_window.display,
conky_window.drawable,
conky_window.visual, conky_window.width, conky_window.height)
local cr=cairo_create(cs)
if tonumber(conky_parse('${updates}'))>3 then
for i in pairs(rings_settings) do
draw_ring(cr,rings_settings[i])
end
end
cairo_destroy(cr)
end
function draw_ring(cr, t)
local function rgba_to_r_g_b_a(tcolour)
local colour,alpha=tcolour[2],tcolour[3]
return ((colour / 0x10000) % 0x100) / 255.,
((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end
local function calc_delta(tcol1,tcol2)
--calculate deltas P R G B A to table_colour 1
for x = 1, #tcol1 do
tcol1[x].dA = 0
tcol1[x].dP = 0
tcol1[x].dR = 0
tcol1[x].dG = 0
tcol1[x].dB = 0
if tcol2~=nil and #tcol1 == #tcol2 then
local r1,g1,b1,a1 = rgba_to_r_g_b_a(tcol1[x])
local r2,g2,b2,a2 = rgba_to_r_g_b_a(tcol2[x])
tcol1[x].dP = (tcol2[x][1]-tcol1[x][1])/t.sectors
tcol1[x].dR = (r2-r1)/t.sectors
tcol1[x].dG = (g2-g1)/t.sectors
tcol1[x].dB = (b2-b1)/t.sectors
tcol1[x].dA = (a2-a1)/t.sectors
end
end
return tcol1
end
--check values
local function setup(t)
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'")
print ("for name=" .. t.name)
print ("with arg=" .. t.arg)
return
end
if t.name==nil then t.name="" end
if t.arg==nil then t.arg="" 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.thickness ==nil then t.thickness = 10 end
if t.radius ==nil then t.radius =conky_window.width/4 end
if t.start_angle==nil then t.start_angle =0 end
if t.end_angle==nil then t.end_angle=360 end
if t.bg_colour1==nil then
t.bg_colour1={{0,0x00ffff,0.1},{0.5,0x00FFFF,0.5},{1,0x00FFFF,0.1}}
end
if t.fg_colour1==nil then
t.fg_colour1={{0,0x00FF00,0.1},{0.5,0x00FF00,1},{1,0x00FF00,0.1}}
end
if t.bd_colour1==nil then
t.bd_colour1={{0,0xFFFF00,0.5},{0.5,0xFFFF00,1},{1,0xFFFF00,0.5}}
end
if t.sectors==nil then t.sectors=10 end
if t.gap_sectors==nil then t.gap_sectors=1 end
if t.fill_sector==nil then t.fill_sector=false end
if t.sectors==1 then t.fill_sector=false end
if t.border_size==nil then t.border_size=0 end
if t.cap==nil then t.cap="p" end
--some checks
if t.thickness>t.radius then t.thickness=t.radius*0.1 end
t.int_radius = t.radius-t.thickness
--check colors tables
for i=1, #t.bg_colour1 do
if #t.bg_colour1[i]~=3 then t.bg_colour1[i]={1,0xFFFFFF,0.5} end
end
for i=1, #t.fg_colour1 do
if #t.fg_colour1[i]~=3 then t.fg_colour1[i]={1,0xFF0000,1} end
end
for i=1, #t.bd_colour1 do
if #t.bd_colour1[i]~=3 then t.bd_colour1[i]={1,0xFFFF00,1} end
end
if t.bg_colour2~=nil then
for i=1, #t.bg_colour2 do
if #t.bg_colour2[i]~=3 then t.bg_colour2[i]={1,0xFFFFFF,0.5} end
end
end
if t.fg_colour2~=nil then
for i=1, #t.fg_colour2 do
if #t.fg_colour2[i]~=3 then t.fg_colour2[i]={1,0xFF0000,1} end
end
end
if t.bd_colour2~=nil then
for i=1, #t.bd_colour2 do
if #t.bd_colour2[i]~=3 then t.bd_colour2[i]={1,0xFFFF00,1} end
end
end
if t.start_angle>=t.end_angle then
local tmp_angle=t.end_angle
t.end_angle= t.start_angle
t.start_angle = tmp_angle
-- print ("inversed angles")
if t.end_angle-t.start_angle>360 and t.start_angle>0 then
t.end_angle=360+t.start_angle
print ("reduce angles")
end
if t.end_angle+t.start_angle>360 and t.start_angle<=0 then
t.end_angle=360+t.start_angle
print ("reduce angles")
end
if t.int_radius<0 then t.int_radius =0 end
if t.int_radius>t.radius then
local tmp_radius=t.radius
t.radius=t.int_radius
t.int_radius=tmp_radius
print ("inversed radius")
end
if t.int_radius==t.radius then
t.int_radius=0
print ("int radius set to 0")
end
end
t.fg_colour1 = calc_delta(t.fg_colour1,t.fg_colour2)
t.bg_colour1 = calc_delta(t.bg_colour1,t.bg_colour2)
t.bd_colour1 = calc_delta(t.bd_colour1,t.bd_colour2)
end
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
--initialize table
setup(t)
--initialize cairo context
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)
--get value
local value = 0
if t.name ~="" then
value = tonumber(conky_parse(string.format('${%s %s}', t.name, t.arg)))
else
value = tonumber(t.arg)
end
if value==nil then value =0 end
--initialize sectors
--angle of a sector :
local angleA = ((t.end_angle-t.start_angle)/t.sectors)*math.pi/180
--value of a sector :
local valueA = t.max/t.sectors
--first angle of a sector :
local lastAngle = t.start_angle*math.pi/180
local function draw_sector(type_arc,angle0,angle,valpc, idx)
--this function draws a portion of arc
--type of arc, angle0 = strating angle, angle= angle of sector,
--valpc = percentage inside the sector, idx = sctor number #
local tcolor
if type_arc=="bg" then --background
if valpc==1 then return end
tcolor=t.bg_colour1
elseif type_arc=="fg" then --foreground
if valpc==0 then return end
tcolor=t.fg_colour1
elseif type_arc=="bd" then --border
tcolor=t.bd_colour1
end
--angles equivalents to gap_sector
local ext_delta=math.atan(t.gap_sectors/(2*t.radius))
local int_delta=math.atan(t.gap_sectors/(2*t.int_radius))
--angles of arcs
local ext_angle=(angle-ext_delta*2)*valpc
local int_angle=(angle-int_delta*2)*valpc
--define colours to use for this sector
if #tcolor==1 then
--plain color
local vR,vG,vB,vA = rgba_to_r_g_b_a(tcolor[1])
cairo_set_source_rgba(cr,vR+tcolor[1].dR*idx,
vG+tcolor[1].dG*idx,
vB+tcolor[1].dB*idx,
vA+tcolor[1].dA*idx )
else
--radient color
local pat=cairo_pattern_create_radial(0,0,t.int_radius,0,0,t.radius)
for i=1, #tcolor do
local vP,vR,vG,vB,vA = tcolor[i][1], rgba_to_r_g_b_a(tcolor[i])
cairo_pattern_add_color_stop_rgba (pat,
vP+tcolor[i].dP*idx,
vR+tcolor[i].dR*idx,
vG+tcolor[i].dG*idx,
vB+tcolor[i].dB*idx,
vA+tcolor[i].dA*idx )
end
cairo_set_source (cr, pat)
cairo_pattern_destroy(pat)
end
--start drawing
cairo_save(cr)
--x axis is parrallel to start of sector
cairo_rotate(cr,angle0-math.pi/2)
local ri,re = t.int_radius ,t.radius
--point A
local angle_a
if t.cap == "p" then
angle_a = int_delta
if t.inverse_arc and type_arc ~="bg" then
angle_a = angle-int_angle-int_delta
end
if not(t.inverse_arc) and type_arc =="bg" then
angle_a = int_delta+int_angle
end
else --t.cap=="r"
angle_a = ext_delta
if t.inverse_arc and type_arc~="bg" then
angle_a = angle-ext_angle-ext_delta
end
if not(t.inverse_arc) and type_arc=="bg" then
angle_a = ext_delta+ext_angle
end
end
local ax,ay = ri*math.cos(angle_a),ri*math.sin(angle_a)
--point B
local angle_b = ext_delta
if t.cap == "p" then
if t.inverse_arc and type_arc ~="bg" then
angle_b = angle-ext_angle-ext_delta
end
if not(t.inverse_arc) and type_arc=="bg" then
angle_b = ext_delta+ext_angle
end
else
if t.inverse_arc and type_arc ~="bg" then
angle_b = angle-ext_angle-ext_delta
end
if not(t.inverse_arc) and type_arc=="bg" then
angle_b = ext_delta+ext_angle
end
end
local bx,by = re*math.cos(angle_b),re*math.sin(angle_b)
-- EXTERNAL ARC B --> C
local b0,b1
if t.inverse_arc then
if type_arc=="bg" then
b0,b1= ext_delta, angle-ext_delta-ext_angle
else
b0,b1= angle-ext_angle-ext_delta, angle-ext_delta
end
else
if type_arc=="bg" then
b0,b1= ext_delta+ext_angle, angle-ext_delta
else
b0,b1= ext_delta, ext_angle+ext_delta
end
end
---POINT D
local angle_c, angle_d
if t.cap == "p" then
angle_d = angle-int_delta
if t.inverse_arc and type_arc=="bg" then
angle_d = angle-int_delta-int_angle
end
if not(t.inverse_arc) and type_arc~="bg" then
angle_d=int_delta+int_angle
end
else
angle_d = angle-ext_delta
if t.inverse_arc and type_arc=="bg" then
angle_d =angle-ext_delta-ext_angle
end
if not(t.inverse_arc) and type_arc~="bg" then
angle_d = ext_angle+ext_delta
end
end
local dx,dy = ri*math.cos(angle_d),ri*math.sin(angle_d)
-- INTERNAL ARC D --> A
local d0,d1
if t.cap=="p" then
if t.inverse_arc then
if type_arc=="bg" then
d0,d1= angle-int_delta-int_angle,int_delta
else
d0,d1= angle-int_delta, angle- int_angle-int_delta
end
else
if type_arc=="bg" then
d0,d1= angle-int_delta, int_delta+int_angle
else
d0,d1= int_delta+int_angle, int_delta
end
end
else
if t.inverse_arc then
if type_arc=="bg" then
d0,d1= angle-ext_delta-ext_angle,ext_delta
else
d0,d1= angle-ext_delta, angle- ext_angle-ext_delta
end
else
if type_arc=="bg" then
d0,d1= angle-ext_delta,ext_delta+ext_angle
else
d0,d1= ext_angle+ext_delta, ext_delta
end
end
end
--draw sector
cairo_move_to(cr,ax,ay)
cairo_line_to(cr,bx,by)
cairo_arc(cr,0,0,re,b0,b1)
cairo_line_to(cr,dx,dy)
cairo_arc_negative(cr,0,0,ri,d0,d1)
cairo_close_path (cr);
--stroke or fill sector
if type_arc=="bd" then
cairo_set_line_width(cr,t.border_size)
cairo_stroke(cr)
else
cairo_fill(cr)
end
cairo_restore(cr)
end
--draw sectors
local n0,n1,n2 = 1,t.sectors,1
if t.inverse_arc then n0,n1,n2 = t.sectors,1,-1 end
local index = 0
for i = n0,n1,n2 do
index = index +1
local valueZ=1
local cstA, cstB = (i-1),i
if t.inverse_arc then cstA,cstB = (t.sectors-i), (t.sectors-i+1) end
if value>valueA *cstA and value<valueA*cstB then
if not t.fill_sector then
valueZ = (value-valueA*cstA)/valueA
end
else
if value<valueA*cstB then valueZ=0 end
end
local start_angle= lastAngle+(i-1)*angleA
if t.foreground ~= false then
draw_sector("fg",start_angle,angleA,valueZ, index)
end
if t.background ~= false then
draw_sector("bg",start_angle,angleA,valueZ, i)
end
if t.border_size>0 then draw_sector("bd",start_angle,angleA,1, i) end
end
cairo_restore(cr)
end
--[[END OF RING-SECTORS WIDGET]]
require 'cairo'
function conky_main_box()
if conky_window==nil then return end
---------------------- PARAMETERS BEGIN HERE
local boxes_settings={
--FIRST COLUMN
--default colour and corner
}
---------------------------- PARAMETERS END HERE
local cs=cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, conky_window.width, conky_window.height)
local cr=cairo_create(cs)
if tonumber(conky_parse("$updates"))<5 then return end
for i in pairs(boxes_settings) do
draw_box (cr,boxes_settings[i])
end
cairo_destroy(cr)
cairo_surface_destroy(cs)
end
function draw_box(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 table_corners={"circle","curve","line"}
local t_operators={
clear = CAIRO_OPERATOR_CLEAR,
source = CAIRO_OPERATOR_SOURCE,
over = CAIRO_OPERATOR_OVER,
["in"] = CAIRO_OPERATOR_IN,
out = CAIRO_OPERATOR_OUT,
atop = CAIRO_OPERATOR_ATOP,
dest = CAIRO_OPERATOR_DEST,
dest_over = CAIRO_OPERATOR_DEST_OVER,
dest_in = CAIRO_OPERATOR_DEST_IN,
dest_out = CAIRO_OPERATOR_DEST_OUT,
dest_atop = CAIRO_OPERATOR_DEST_ATOP,
xor = CAIRO_OPERATOR_XOR,
add = CAIRO_OPERATOR_ADD,
saturate = CAIRO_OPERATOR_SATURATE,
}
function rgba_to_r_g_b_a(tc)
--tc={position,colour,alpha}
local colour = tc[2]
local alpha = tc[3]
return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end
function table.copy(t)
local t2 = {}
for k,v in pairs(t) do
t2[k] = {v[1],v[2]}
end
return t2
end
function draw_corner(num,t)
local shape=t[1]
local radius=t[2]
local x,y = t[3],t[4]
if shape=="line" then
if num == 1 then cairo_line_to(cr,radius,0)
elseif num == 2 then cairo_line_to(cr,x,radius)
elseif num == 3 then cairo_line_to(cr,x-radius,y)
elseif num == 4 then cairo_line_to(cr,0,y-radius)
end
end
if shape=="circle" then
local PI = math.pi
if num == 1 then cairo_arc(cr,radius,radius,radius,-PI,-PI/2)
elseif num == 2 then cairo_arc(cr,x-radius,y+radius,radius,-PI/2,0)
elseif num == 3 then cairo_arc(cr,x-radius,y-radius,radius,0,PI/2)
elseif num == 4 then cairo_arc(cr,radius,y-radius,radius,PI/2,-PI)
end
end
if shape=="curve" then
if num == 1 then cairo_curve_to(cr,0,radius ,0,0 ,radius,0)
elseif num == 2 then cairo_curve_to(cr,x-radius,0, x,y, x,radius)
elseif num == 3 then cairo_curve_to(cr,x,y-radius, x,y, x-radius,y)
elseif num == 4 then cairo_curve_to(cr,radius,y, x,y, 0,y-radius)
end
end
end
--check values and set default values
if t.x == nil then t.x = 0 end
if t.y == nil then t.y = 0 end
if t.w == nil then t.w = conky_window.width end
if t.h == nil then t.h = conky_window.height end
if t.radius == nil then t.radius = 0 end
if t.border == nil then t.border = 0 end
if t.colour==nil then t.colour={{1,0xFFFFFF,0.5}} end
if t.linear_gradient ~= nil then
if #t.linear_gradient ~= 4 then
t.linear_gradient = {t.x,t.y,t.width,t.height}
end
end
if t.angle==nil then t.angle = 0 end
if t.skew_x == nil then t.skew_x=0 end
if t.skew_y == nil then t.skew_y=0 end
if t.scale_x==nil then t.scale_x=1 end
if t.scale_y==nil then t.scale_y=1 end
if t.rot_x == nil then t.rot_x=0 end
if t.rot_y == nil then t.rot_y=0 end
if t.operator == nil then t.operator = "over" end
if (t_operators[t.operator]) == nil then
print ("wrong operator :",t.operator)
t.operator = "over"
end
if t.radial_gradient ~= nil then
if #t.radial_gradient ~= 6 then
t.radial_gradient = {t.x,t.y,0, t.x,t.y, t.width}
end
end
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
if t.corners == nil then t.corners={ {"line",0} } end
local t_corners = {}
local t_corners = table.copy(t.corners)
--don't use t_corners=t.corners otherwise t.corners is altered
--complete the t_corners table if needed
for i=#t_corners+1,4 do
t_corners[i]=t_corners[#t_corners]
local flag=false
for j,v in pairs(table_corners) do flag=flag or (t_corners[i][1]==v) end
if not flag then print ("error in corners table :",t_corners[i][1]);t_corners[i][1]="curve" end
end
--this way :
-- t_corners[1][4]=x
-- t_corners[2][3]=y
--doesn't work
t_corners[1]={t_corners[1][1],t_corners[1][2],0,0}
t_corners[2]={t_corners[2][1],t_corners[2][2],t.w,0}
t_corners[3]={t_corners[3][1],t_corners[3][2],t.w,t.h}
t_corners[4]={t_corners[4][1],t_corners[4][2],0,t.h}
t.no_gradient = (t.linear_gradient == nil ) and (t.radial_gradient == nil )
cairo_save(cr)
cairo_translate(cr, t.x, t.y)
if t.rot_x~=0 or t.rot_y~=0 or t.angle~=0 then
cairo_translate(cr,t.rot_x,t.rot_y)
cairo_rotate(cr,t.angle*math.pi/180)
cairo_translate(cr,-t.rot_x,-t.rot_y)
end
if t.scale_x~=1 or t.scale_y~=1 or t.skew_x~=0 or t.skew_y~=0 then
local matrix0 = cairo_matrix_t:create()
tolua.takeownership(matrix0)
cairo_matrix_init (matrix0, t.scale_x,math.pi*t.skew_y/180 , math.pi*t.skew_x/180 ,t.scale_y,0,0)
cairo_transform(cr,matrix0)
end
local tc=t_corners
cairo_move_to(cr,tc[1][2],0)
cairo_line_to(cr,t.w-tc[2][2],0)
draw_corner(2,tc[2])
cairo_line_to(cr,t.w,t.h-tc[3][2])
draw_corner(3,tc[3])
cairo_line_to(cr,tc[4][2],t.h)
draw_corner(4,tc[4])
cairo_line_to(cr,0,tc[1][2])
draw_corner(1,tc[1])
if t.no_gradient then
cairo_set_source_rgba(cr,rgba_to_r_g_b_a(t.colour[1]))
else
if t.linear_gradient ~= nil then
pat = cairo_pattern_create_linear (t.linear_gradient[1],t.linear_gradient[2],t.linear_gradient[3],t.linear_gradient[4])
elseif t.radial_gradient ~= nil then
pat = cairo_pattern_create_radial (t.radial_gradient[1],t.radial_gradient[2],t.radial_gradient[3],
t.radial_gradient[4],t.radial_gradient[5],t.radial_gradient[6])
end
for i=1, #t.colour do
cairo_pattern_add_color_stop_rgba (pat, t.colour[i][1], rgba_to_r_g_b_a(t.colour[i]))
end
cairo_set_source (cr, pat)
cairo_pattern_destroy(pat)
end
cairo_set_operator(cr,t_operators[t.operator])
if t.border>0 then
cairo_close_path(cr)
if t.dash ~= nil then cairo_set_dash(cr, t.dash, 1, 0.0) end
cairo_set_line_width(cr,t.border)
cairo_stroke(cr)
else
cairo_fill(cr)
end
cairo_restore(cr)
end
Here is the conkyrc_8a:
Adv Reply
Originally Posted by Andy_Browning
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