; The island machinery, adopted from Murzchnvok/polybar-collection.

;

; [bar/main] is one full-width, fully transparent window. An island is just a

; run of modules that paint their own background, opened and closed by these

; two text modules: a half circle drawn in the island colour at font-1

; (%{T2}). The result is a rounded block only as wide as what is inside it --

; no bar widths to measure and no second bar window to keep in sync.

;

; The corner radius is font-1's *size*, and the trick is that the glyph is far

; taller than the bar: at 30pt it is 48px tall, the bar keeps the middle 32px,

; and a shallow 6px corner is all that shows. Bigger size, flatter corner --

; the inset at the bar's top and bottom edge works out to about

;

;   0.636 * em * (1 - sqrt(1 - (16 / (0.6065 * em))^2))      em = size * 4/3

;

; The %{O-8} is what keeps the cap from being fat: the glyph's advance is

; 0.6em (24px at 30pt), far more than the corner needs, so the cursor is

; pulled back 8px to leave a 16px cap. Which side of the glyph the pullback

; goes on matters. cap-left trims after, because its ink runs to the right

; into the next module's background, which is painted afterwards and covers

; it. cap-right trims before, because its ink runs left over the *previous*

; module -- so keep that pullback under that module's format-padding (10px)

; or the cap will paint over the last of its text.

;

; The contract for anything that goes in an island: set a background and some

; padding on every format the module can show, e.g.

;

;   format-background = ${colors.background}

;   format-padding = 1

;

; A format without a background leaves a see-through hole in the island. Note

; that it is format-<name>-background for modules with named formats

; (mounted, volume, connected, ...) -- there is no fallback to a bare

; format-background.

[module/cap-left]

type = custom/text

label = %{T2}%{T-}%{O-8}

label-foreground = ${colors.background}

[module/cap-right]

type = custom/text

label = %{O-8}%{T2}%{T-}

label-foreground = ${colors.background}

; A transparent spacer, for a real gap between two islands on the same side.

; One font-1 space, so it is a cap's worth of nothing: 24px.

[module/gap]

type = custom/text

label = %{T2} %{T-}

label-foreground = ${colors.transparent}

; vim:ft=dosini