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Updated cpu (markdown)
[etc/awesome.git] / alsabar.md
1 Shows and controls alsa volume with a progressbar.
2
3 Dependencies:
4
5 - alsa-utils (of course)
6
7 Plus tooltips, notifications, and color changes at mute/unmute switch.
8
9         myvolumebar = lain.widgets.alsabar()
10
11 * Left click: Launch `alsamixer` in your `terminal`.
12 * Right click: Mute/unmute.
13 * Scroll wheel: Increase/decrase volume.
14
15 The function takes a table as optional argument, which can contain:
16
17 Variable | Meaning | Type | Default
18 --- | --- | --- | ---
19 `width` | Bar width | int | 63
20 `height` | Bar height | int | 1
21 `ticks` | Set bar ticks on | boolean | true
22 `ticks_size` | Ticks size | int | 7
23 `vertical` | Set the bar vertical | boolean | false
24 `channel` | Mixer channel | string | "Master" 
25 `step` | Step at which volume is increased/decreased | string | "5%"
26 `colors` | Bar colors | table | see **colors**
27 `notifications` | Notifications settings | table | see **notifications**
28
29 ### colors
30
31 Variable | Meaning | Type | Default
32 --- | --- | --- | ---
33 `background` | Bar backgrund color | string | `beautiful.bg_normal`
34 `mute` | Bar mute color | string | "#EB8F8F"
35 `unmute` | Bar unmute color | string | "#A4CE8A"
36
37 ### notifications
38
39 Variable | Meaning | Type | Default
40 --- | --- | --- | ---
41 `font` | Notifications font | string | The one defined in `beautiful.font`
42 `font_size` | Notifications font size | string | "11"
43 `bar_size` | Wibox height | int | 18
44
45 It's **crucial** to set `notifications.bar_size` to your `mywibox[s]` height,
46 **if** you have set it different than default (18). 
47
48 `lain.widgets.alsabar` outputs the following table:
49
50 Variable | Meaning | Type
51 --- | --- | ---
52 `widget` | The widget | `awful.widget.progressbar`
53 `channel` | Alsa channel | string
54 `step` | Increase/decrease step | string
55 `notify` | The notification | function
56
57 Finally, you can control the widget with key bindings like these:
58
59     -- Volume control
60     awful.key({ altkey }, "Up",
61     function ()
62         awful.util.spawn("amixer sset " .. volume.channel .. " " .. volume.step .. "+")
63         volume.notify()
64     end),
65     awful.key({ altkey }, "Down",
66     function ()
67         awful.util.spawn("amixer sset " .. volume.channel .. " " .. volume.step .. "-")
68         volume.notify()
69     end),
70     awful.key({ altkey }, "m",
71     function ()
72         awful.util.spawn("amixer set Master playback toggle")
73         volume.notify()
74     end),
75     awful.key({ altkey, "Control" }, "m", 
76     function ()
77         awful.util.spawn("amixer set Master playback 100%", false )
78         volume.notify()
79     end),
80
81 where `altkey = "Mod1"`.