1 --[[TEXT WIDGET v1.. by Wlourf 25/06/2010
2 This widget can drawn texts set in the "text_settings" table with some parameters
3 http://u-scripts.blogspot.com/2010/06/text-widget.html
5 The parameters (all optionals) are :
6 text - text to display, default = "Conky is good for you"
7 use conky_parse to display conky value ie text=conly_parse("${cpu cpu1}")
8 - coordinates below are relative to top left corner of the conky window
9 x - x coordinate of first letter (bottom-left), default = center of conky window
10 y - y coordinate of first letter (bottom-left), default = center of conky window
11 h_align - horizontal alignement of text relative to point (x,y), default="l"
12 available values are "l": left, "c" : center, "r" : right
13 v_align - vertical alignment of text relative to point (x,y), default="b"
14 available values "t" : top, "m" : middle, "b" : bottom
15 font_name - name of font to use, default = Free Sans
16 font_size - size of font to use, default = 14
17 italic - display text in italic (true/false), default=false
18 oblique - display text in oblique (true/false), default=false (I don' see the difference with italic!)
19 bold - display text in bold (true/false), default=false
20 angle - rotation of text in degrees, default = 0 (horizontal)
21 colour - table of colours for text, default = plain white {{1,0xFFFFFF,1}}
22 this table contains one or more tables with format {P,C,A}
23 P=position of gradient (0 = beginning of text, 1= end of text)
25 A=alpha (opacity) of color (0=invisible,1=opacity 100%)
27 for a plain color {{1,0x00FF00,0.5}}
28 for a gradient with two colours {{0,0x00FF00,0.5},{1,0x000033,1}}
29 or {{0.5,0x00FF00,1},{1,0x000033,1}} -with this one, gradient will start in the middle of the text
30 for a gradient with three colours {{0,0x00FF00,0.5},{0.5,0x000033,1},{1,0x440033,1}}
32 orientation - in case of gradient, "orientation" defines the starting point of the gradient, default="ww"
33 there are 8 available starting points : "nw","nn","ne","ee","se","ss","sw","ww"
34 (n for north, w for west ...)
35 theses 8 points are the 4 corners + the 4 middles of text's outline
36 so a gradient "nn" will go from "nn" to "ss" (top to bottom, parallele to text)
37 a gradient "nw" will go from "nw" to "se" (left-top corner to right-bottom corner)
38 radial - define a radial gradient (if present at the same time as "orientation", "orientation" will have no effect)
39 this parameter is a table with 6 numbers : {xa,ya,ra,xb,yb,rb}
40 they define two circle for the gradient :
41 xa, ya, xb and yb are relative to x and y values above
42 reflection_alpha - add a reflection effect (values from 0 to 1) default = 0 = no reflection
43 other values = starting opacity
44 reflection_scale - scale of the reflection (default = 1 = height of text)
45 reflection_length - length of reflection, define where the opacity will be set to zero
46 calues from 0 to 1, default =1
47 skew_x,skew_y - skew text around x or y axis
52 To call this script in the conkyrc, in before-TEXT section:
53 lua_load /path/to/the/lua/script/text.lua
54 lua_draw_hook_pre draw_text
56 v1.0 07/06/2010, Original release
57 v1.1 10/06/2010 Add "orientation" parameter
58 v1.2 15/06/2010 Add "h_align", "v_align" and "radial" parameters
59 v1.3 25/06/2010 Add "reflection_alpha", "reflection_length", "reflection_scale",
67 function conky_draw_text()
68 local col0,col1,col2=0xFFFFCC,0xCCFF99,0x99FF00
72 text=conky_parse("${time %I:%M%p %D}"),
75 font_name="Nokia Pure",
87 radial={400,-700,0,100,-1000,1024}
90 text=conky_parse("$sysname $kernel on $machine - $uptime"),
93 font_name="Nokia Pure",
99 colour={{0,col0,0.75},{1,colbg,0.75}},
103 text=conky_parse("$freq MHz"),
104 font_name="Nokia Pure",
113 colour={{0,col0,1},{0.5,colbg,1}},
117 text=conky_parse("${battery_temp}").."\194\176",--yes i had to do the degree symbol like that...
122 font_name="Nokia Pure",
124 colour={{0,col0,1},{0.5,colbg,1}},
130 text=conky_parse("${battery_rate}mA"),
135 font_name="Nokia Pure",
137 colour={{0,col0,1},{0.5,colbg,1}},
143 text=conky_parse("${battery_short} ${battery_volts}mV"),
148 font_name="Nokia Pure",
150 colour={{0,col0,1},{0.5,colbg,1}},
156 text=conky_parse("${cell_radio_dbm}".."dBm"),
159 font_name="Nokia Pure",
161 colour={{0,col0,1},{0.5,colbg,1}},
163 reflection_alpha=0.0,
164 reflection_length=0.0,
167 text=conky_parse('${cpu}').."%",
172 font_name="Nokia Pure",
174 colour={{0,col0,1},{0.5,colbg,1}},
180 text=conky_parse('${memperc}').."% RAM",
184 font_name="Nokia Pure",
186 colour={{0,col0,1},{0.5,colbg,1}},
192 text=conky_parse('${fs_used /} / ${fs_size /} (${fs_free /})'),
196 font_name="Nokia Pure",
198 colour={{conky_parse('${fs_used_perc /}')/100,0x000000,1},{1,0xFFFFFF,1}},
208 font_name="Nokia Pure",
210 colour={{0,0x336633,1},{1,col0,1}},
217 text=conky_parse('${fs_used /home} / ${fs_size /home} (${fs_free /home})'),
221 font_name="Nokia Pure",
223 colour={{conky_parse('${fs_used_perc /home}')/100,0x000000,1},{1,0xFFFFFF,1}},
233 font_name="Nokia Pure",
235 colour={{0,0x336633,1},{1,col0,1}},
242 text=conky_parse('${fs_used /home/user/MyDocs} / ${fs_size /home/user/MyDocs} (${fs_free /home/user/MyDocs})'),
246 font_name="Nokia Pure",
248 colour={{conky_parse('${fs_used_perc /home/user/MyDocs}')/100-.1,0x000000,1},{1,0xFFFFFF,1}},
252 DrawMe=conky_parse("${if_mounted /home/user/MyDocs}1$endif")
259 font_name="Nokia Pure",
261 colour={{0,0x336633,1},{1,col0,1}},
266 DrawMe=conky_parse("${if_mounted /home/user/MyDocs}1$endif")
273 font_name="Nokia Pure",
275 colour={{0,0xcc6600,1},{1,col0,1}},
286 font_name="Nokia Pure",
288 colour={{0,0xFF0000,1},{1,col0,1}},
296 text=conky_parse('${fs_used /media/mmc1} / ${fs_size /media/mmc1} (${fs_free /media/mmc1})'),
300 font_name="Nokia Pure",
302 colour={{conky_parse('${fs_used_perc /media/mmc1}')/100-.1,0x000000,1},{1,0xFFFFFF,1}},
306 DrawMe=conky_parse("${if_mounted /media/mmc1}1$endif")
313 font_name="Nokia Pure",
315 colour={{0,0x336633,1},{1,col0,1}},
320 DrawMe=conky_parse("${if_mounted /media/mmc1}1$endif"),
324 text=conky_parse('${wireless_essid wlan0}'),
329 font_name="Nokia Pure",
331 colour={{0,col0,1},{0.5,colbg,1}},
335 DrawMe=conky_parse("${if_up wlan0}1${else}0$endif"),
343 font_name="Nokia Pure",
345 colour={{0,col0,1},{0.5,colbg,1}},
349 DrawMe=conky_parse("${if_up gprs0}1${else}0$endif"),
352 text=conky_parse('${wireless_link_qual_perc wlan0}')..'%',
357 font_name="Nokia Pure",
359 colour={{0,col0,1},{0.5,colbg,1}},
363 DrawMe=conky_parse("${if_up wlan0}1${else}0$endif"),
366 text='Up '..conky_parse('${upspeedf wlan0}') + conky_parse('${upspeedf gprs0}'),
374 colour={{0,0xcc0066,1}},
378 DrawMe=conky_parse("${if_up wlan0}1${else}0$endif"),
381 text=conky_parse('${downspeedf wlan0}') + conky_parse('${downspeedf gprs0}')..' Down',
389 colour={{0,0xcc0066,1}},
393 DrawMe=conky_parse("${if_up wlan0}1${else}0$endif"),
396 text='Up '..conky_parse('${upspeed gprs0}'),
404 colour={{0,0xcc0066,1}},
408 DrawMe=conky_parse("${if_up gprs0}1${else}0$endif"),
411 text=conky_parse('${downspeed gprs0}')..' Down',
419 colour={{0,0xcc0066,1}},
423 DrawMe=conky_parse("${if_up gprs0}1${else}0$endif"),
426 if conky_window == nil then return end
427 if tonumber(conky_parse("$updates"))<3 then return end
428 local cs = cairo_xlib_surface_create(conky_window.display, conky_window.drawable, conky_window.visual, conky_window.width, conky_window.height)
429 for i,v in pairs(text_settings) do
430 cr = cairo_create (cs)
435 cairo_surface_destroy(cs)
438 function rgb_to_r_g_b2(tcolour)
439 local colour,alpha=tcolour[2],tcolour[3]
440 return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
443 function display_text(t)
444 if t.DrawMe~=nil and t.DrawMe ~= "1" then return end
445 local function set_pattern(te)
446 --this function set the pattern
448 cairo_set_source_rgba(cr,rgb_to_r_g_b2(t.colour[1]))
451 if t.radial==nil then
452 local pts=linear_orientation(t,te)
453 pat = cairo_pattern_create_linear (pts[1],pts[2],pts[3],pts[4])
455 pat = cairo_pattern_create_radial (t.radial[1],t.radial[2],t.radial[3],t.radial[4],t.radial[5],t.radial[6])
457 for i=1, #t.colour do
458 cairo_pattern_add_color_stop_rgba (pat, t.colour[i][1], rgb_to_r_g_b2(t.colour[i]))
460 cairo_set_source (cr, pat)
461 cairo_pattern_destroy(pat)
465 --set default values if needed
466 if t.text==nil then t.text="Conky is good for you !" end
467 if t.x==nil then t.x = conky_window.width/2 end
468 if t.y==nil then t.y = conky_window.height/2 end
469 if t.colour==nil then t.colour={{1,0xFFFFFF,1}} end
470 if t.font_name==nil then t.font_name="Free Sans" end
471 if t.font_size==nil then t.font_size=14 end
472 if t.angle==nil then t.angle=0 end
473 if t.italic==nil then t.italic=false end
474 if t.oblique==nil then t.oblique=false end
475 if t.bold==nil then t.bold=false end
476 if t.radial ~= nil then
478 print ("error in radial table")
482 if t.orientation==nil then t.orientation="ww" end
483 if t.h_align==nil then t.h_align="l" end
484 if t.v_align==nil then t.v_align="b" end
485 if t.reflection_alpha == nil then t.reflection_alpha=0 end
486 if t.reflection_length == nil then t.reflection_length=1 end
487 if t.reflection_scale == nil then t.reflection_scale=1 end
488 if t.rotx==nil then t.rotx=0 end
489 if t.roty==nil then t.roty=0 end
490 cairo_translate(cr,t.x,t.y)
491 cairo_rotate(cr,t.angle*math.pi/180)
493 local slant = CAIRO_FONT_SLANT_NORMAL
494 local weight = CAIRO_FONT_WEIGHT_NORMAL
495 if t.italic then slant = CAIRO_FONT_SLANT_ITALIC end
496 if t.oblique then slant = CAIRO_FONT_SLANT_OBLIQUE end
497 if t.bold then weight = CAIRO_FONT_WEIGHT_BOLD end
498 cairo_select_font_face(cr, t.font_name, slant,weight)
499 for i=1, #t.colour do
500 if #t.colour[i]~=3 then
501 print ("error in color table")
502 t.colour[i]={1,0xFFFFFF,1}
505 local matrix0 = cairo_matrix_t:create()
506 tolua.takeownership(matrix0)
507 local rotx,roty=t.rotx/t.font_size,t.roty/t.font_size
508 cairo_matrix_init (matrix0, 1,roty,rotx,1,0,0)
509 cairo_transform(cr,matrix0)
510 cairo_set_font_size(cr,t.font_size)
511 local te=cairo_text_extents_t:create()
512 tolua.takeownership(te)
513 cairo_text_extents (cr,t.text,te)
516 if t.h_align=="c" then
518 elseif t.h_align=="r" then
521 if t.v_align=="m" then
522 my=-te.height/2-te.y_bearing
523 elseif t.v_align=="t" then
526 cairo_move_to(cr,mx,my)
527 cairo_show_text(cr,t.text)
529 if t.reflection_alpha ~= 0 then
530 local matrix1 = cairo_matrix_t:create()
531 tolua.takeownership(matrix1)
532 cairo_set_font_size(cr,t.font_size)
533 cairo_matrix_init (matrix1,1,0,0,-1*t.reflection_scale,0,(te.height+te.y_bearing+my)*(1+t.reflection_scale))
534 cairo_set_font_size(cr,t.font_size)
536 local te=cairo_text_extents_t:create()
537 tolua.takeownership(te)
538 cairo_text_extents (cr,t.text,te)
539 cairo_transform(cr,matrix1)
541 cairo_move_to(cr,mx,my)
542 cairo_show_text(cr,t.text)
543 local pat2 = cairo_pattern_create_linear (0,
544 (te.y_bearing+te.height+my),
547 cairo_pattern_add_color_stop_rgba (pat2, 0,1,0,0,1-t.reflection_alpha)
548 cairo_pattern_add_color_stop_rgba (pat2, t.reflection_length,0,0,0,1)
549 cairo_set_line_width(cr,0)
550 local dy=te.x_bearing
551 if dy<0 then dy=dy*(-1) end
552 cairo_rectangle(cr,mx+te.x_bearing,te.y_bearing+te.height+my,te.width+dy,-te.height*1.05)
553 cairo_clip_preserve(cr)
554 cairo_set_operator(cr,CAIRO_OPERATOR_CLEAR)
557 cairo_pattern_destroy(pat2)
558 cairo_set_operator(cr,CAIRO_OPERATOR_OVER)
564 function linear_orientation(t,te)
565 local w,h=te.width,te.height
566 local xb,yb=te.x_bearing,te.y_bearing
568 if t.h_align=="c" then
570 elseif t.h_align=="r" then
573 if t.v_align=="m" then
575 elseif t.v_align=="t" then
579 if t.orientation=="nn" then
580 p={xb+w/2,yb,xb+w/2,yb+h}
581 elseif t.orientation=="ne" then
583 elseif t.orientation=="ww" then
585 elseif vorientation=="se" then
587 elseif t.orientation=="ss" then
588 p={xb+w/2,yb+h,xb+w/2,yb}
589 elseif vorientation=="ee" then
591 elseif t.orientation=="sw" then
593 elseif t.orientation=="nw" then