forked from notdodo/conky_dodo
-
Notifications
You must be signed in to change notification settings - Fork 0
/
dodo_ringsDATA.lua
171 lines (151 loc) · 6.35 KB
/
dodo_ringsDATA.lua
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
require 'cairo'
--------------------------------------------------------------------------------
-- gauge DATA
gauge = {
{
name='fs_used_perc', arg='/', max_value=80,
x=70, y=72,
graph_radius=52,
txt_radius=68,
caption=' root',
},
{
name='fs_used_perc', arg='/home', max_value=80,
x=70, y=72,
graph_radius=42,
txt_radius=30,
caption='home',
}
}
-------------------------------------------------------------------------------
-- rgb_to_r_g_b
-- converts color in hexa to decimal
--
function rgb_to_r_g_b(colour, alpha)
return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end
-------------------------------------------------------------------------------
-- angle_to_position
-- convert degree to rad and rotate (0 degree is top/north)
--
function angle_to_position(start_angle, current_angle)
local pos = current_angle + start_angle
return ((pos * (2 * math.pi / 360)) - (math.pi / 2))
end
-------------------------------------------------------------------------------
-- draw_gauge_ring
-- displays gauges
--
function draw_gauge_ring(display, data, value)
local max_value = 80
local x, y = data['x'], data['y']
local graph_radius = data['graph_radius']
local graph_thickness, graph_unit_thickness = 10, 2.7
local graph_start_angle = 200
local graph_unit_angle = 2.6
local graph_bg_colour, graph_bg_alpha = 0xFFFFFF, 0.1
local graph_fg_colour, graph_fg_alpha = 0xFFFFFF, 0.3
local hand_fg_colour, hand_fg_alpha = 0xEF5A29, 1.0
local graph_end_angle = (max_value * graph_unit_angle) % 360
-- background ring
cairo_arc(display, x, y, graph_radius, angle_to_position(graph_start_angle, 0), angle_to_position(graph_start_angle, graph_end_angle))
cairo_set_source_rgba(display, rgb_to_r_g_b(graph_bg_colour, graph_bg_alpha))
cairo_set_line_width(display, graph_thickness)
cairo_stroke(display)
-- arc of value
local val = value * max_value / 100;
local start_arc = 0
local stop_arc = 0
local i = 1
while i <= val do
start_arc = (graph_unit_angle * i) - graph_unit_thickness
stop_arc = (graph_unit_angle * i)
cairo_arc(display, x, y, graph_radius, angle_to_position(graph_start_angle, start_arc), angle_to_position(graph_start_angle, stop_arc))
cairo_set_source_rgba(display, rgb_to_r_g_b(graph_fg_colour, graph_fg_alpha))
cairo_stroke(display)
i = i + 1
end
local angle = start_arc
-- hand
start_arc = (graph_unit_angle * val) - (graph_unit_thickness)
stop_arc = (graph_unit_angle * val)
cairo_arc(display, x, y, graph_radius, angle_to_position(graph_start_angle, start_arc), angle_to_position(graph_start_angle, stop_arc))
cairo_set_source_rgba(display, rgb_to_r_g_b(hand_fg_colour, hand_fg_alpha))
cairo_stroke(display)
-- graduations marks
local graduation_radius = 23
local graduation_thickness, graduation_mark_thickness = 0, 2
local graduation_unit_angle = 27
local graduation_fg_colour, graduation_fg_alpha = 0xFFFFFF, 0.3
if graduation_radius > 0 and graduation_thickness > 0 and graduation_unit_angle > 0 then
local nb_graduation = graph_end_angle / graduation_unit_angle
local i = 0
while i < nb_graduation do
cairo_set_line_width(display, graduation_thickness)
start_arc = (graduation_unit_angle * i) - (graduation_mark_thickness / 2)
stop_arc = (graduation_unit_angle * i) + (graduation_mark_thickness / 2)
cairo_arc(display, x, y, graduation_radius, angle_to_position(graph_start_angle, start_arc), angle_to_position(graph_start_angle, stop_arc))
cairo_set_source_rgba(display,rgb_to_r_g_b(graduation_fg_colour,graduation_fg_alpha))
cairo_stroke(display)
cairo_set_line_width(display, graph_thickness)
i = i + 1
end
end
-- text
local txt_radius = data['txt_radius']
local txt_weight, txt_size = 0, 9.0
local txt_fg_colour, txt_fg_alpha = 0xEF5A29, 1.0
local movex = txt_radius * math.cos(angle_to_position(graph_start_angle, angle))
local movey = txt_radius * math.sin(angle_to_position(graph_start_angle, angle + 1))
cairo_select_font_face (display, "Droid Sans", CAIRO_FONT_SLANT_NORMAL, txt_weight)
cairo_set_font_size (display, txt_size)
cairo_set_source_rgba (display, rgb_to_r_g_b(txt_fg_colour, txt_fg_alpha))
cairo_move_to (display, x + movex - (txt_size / 2), y + movey + 3)
cairo_show_text (display, value)
cairo_stroke (display)
-- caption
local caption = data['caption']
local caption_weight, caption_size = 1, 12.0
local caption_fg_colour, caption_fg_alpha = 0xFFFFFF, 0.5
local tox = graph_radius * (math.cos((graph_start_angle * 2 * math.pi / 360)-(math.pi/2)))
local toy = graph_radius * (math.sin((graph_start_angle * 2 * math.pi / 360)-(math.pi/2)))
cairo_select_font_face (display, "Droid Sans", CAIRO_FONT_SLANT_NORMAL, caption_weight);
cairo_set_font_size (display, caption_size)
cairo_set_source_rgba (display, rgb_to_r_g_b(caption_fg_colour, caption_fg_alpha))
cairo_move_to (display, x + tox + 5, y + toy + 5)
-- bad hack but not enough time !
if graph_start_angle < 105 then
cairo_move_to (display, x + tox - 30, y + toy + 1)
end
cairo_show_text (display, caption)
cairo_stroke (display)
end
-------------------------------------------------------------------------------
-- go_gauge_rings
-- loads data and displays gauges
--
function go_gauge_rings(display)
local function load_gauge_rings(display, data)
local str, value = '', 0
str = string.format('${%s %s}',data['name'], data['arg'])
str = conky_parse(str)
value = tonumber(str)
draw_gauge_ring(display, data, value)
end
for i in pairs(gauge) do
load_gauge_rings(display, gauge[i])
end
end
-------------------------------------------------------------------------------
-- MAIN
function conky_main()
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 display = cairo_create(cs)
go_gauge_rings(display)
cairo_destroy(display)
cairo_surface_destroy(cs)
display=nil
end