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#1 2017-12-11 10:57:43
- ragamatrix
- Member
- Registered: 2015-10-04
- Posts: 427
lolcat with conky
Hello,
I've just discovered the small funny tool "lolcat" You can display rainbow font with it but it doesn't work with all cli apps, like conky .zshrc or .bashrc. Does someone knows a way to display rainbow font in conky for example ?
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#2 2017-12-11 17:48:40
- nore
- >2⁹
- From: squirrels' nest
- Registered: 2015-09-29
- Posts: 537
Re: lolcat with conky
Sorry, you can't colorize all text in conky in the way lolcat does in terminal. If you want your conky to look like unicorn puke, you can either choose glaring colors for different parts of conky text with {color} tags or put a colorful background image behind monochrome text. You could also use black background with white text and add a semitransparent image on top (never tried it myself).
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#3 2017-12-11 17:59:53
- nobody
- The Great
- Registered: 2015-08-10
- Posts: 3,655
Re: lolcat with conky
ragamatrix wrote:
Hello,
I've just discovered the small funny tool "lolcat" You can display rainbow font with it but it doesn't work with all cli apps, like conky .zshrc or .bashrc. Does someone knows a way to display rainbow font in conky for example ?
https://cdn.scrot.moe/images/2017/12/11/2017-12-11-115613_1920x1080_scrot.th.png
lolcat takes the input file and inserts ANSI color control sequences in front of the individual characters to produce the resulting output. Therefore, lolcat output cannot be rendered using Conky which does not know how to interpret those control sequences.
The logical direction to follow would be to implement lolcat for Conky (possbily in Lua) 
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#4 2017-12-11 18:09:14
- nore
- >2⁹
- From: squirrels' nest
- Registered: 2015-09-29
- Posts: 537
Re: lolcat with conky
twoion wrote:
implement lolcat for Conky (possbily in Lua)
The quick and easy solution.
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#5 2017-12-12 00:21:34
- cloverskull
- Member
- Registered: 2015-10-01
- Posts: 348
Re: lolcat with conky
Does conky display png files? Hypothetically lolcat could be piped to ansilove and then create a png...
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#6 2017-12-12 03:52:44
- nore
- >2⁹
- From: squirrels' nest
- Registered: 2015-09-29
- Posts: 537
Re: lolcat with conky
cloverskull wrote:
Does conky display png files?
Yes. output>ansilove>gradient with imagemagick?
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#7 2017-12-12 06:53:36
- ragamatrix
- Member
- Registered: 2015-10-04
- Posts: 427
Re: lolcat with conky
Thank to you two, I think the better solution is using a lua script, I got the famous one from "wlourf", I post the code in case if you want to try it:
--[[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$endif",
v1.0 07/06/2010, Original release
v1.1 10/06/2010 Add "orientation" parameter
v1.2 15/06/2010 Add "h_align", "v_align" and "radial" parameters
v1.3 25/06/2010 Add "reflection_alpha", "reflection_length", "reflection_scale",
"skew_x" et "skew_y"
v1.4 07/01/2011 Add draw_me parameter and correct memory leaks, thanks to "Creamy Goodness"
text is parsed inside the function, not in the array of settings
v1.41 26/01/2011 Correct bug for h_align="c"
v1.42 09/02/2011 Correct bug for orientation="ee"
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation version 3 (GPLv3)
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-- MA 02110-1301, USA.
]]
require 'cairo'
function conky_draw_text()
--BEGIN OF PARAMETRES
local ts=os.date("*t")
local text_settings={
--======================================================================
--==TIME==--
--F9E88B--CC2305
--bleu--violet
--0x3D3DFD--0xD04BFF
{
text=conky_parse("${time %H:%M}"),
font_name="Spaceship Bullet",
font_size=130,
--bold=true,
x=4,
y=90,
--reflection_alpha=0.7,
--reflection_length=0.7,
--bleu
--colour={{0,0x00BFFF,1},{1,0x1874CD,1}},
--rouge
colour={{0,0x04BEFF,1},{1,0xFFB400,1}},
radial={0,-550,500,00,-4995,5000},
},
}
--------------END OF PARAMETERES----------------
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="Arial" 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)
local text=conky_parse(t.text)
if text~="" then t.text = text end
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
endOffline
#8 2017-12-13 06:30:00
- ohnonot
- ...again
- Registered: 2015-09-29
- Posts: 5,592
Re: lolcat with conky
ragamatrix wrote:
cli apps, like conky
i assume you want to output conky to a terminal?
i don't see why it wouldn't work with lolcat.
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