103 lines
2.6 KiB
Lua
103 lines
2.6 KiB
Lua
----------------------------------------------------------------------------
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--- Library for getting xrdb data.
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--
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-- @author Yauhen Kirylau <yawghen@gmail.com>
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-- @copyright 2015 Yauhen Kirylau
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-- @release @AWESOME_VERSION@
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-- @module beautiful.xresources
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----------------------------------------------------------------------------
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-- Grab environment
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local print = print
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local awesome = awesome
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local floor = math.floor
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local xresources = {}
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local fallback = {
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--black
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color0 = '#000000',
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color8 = '#465457',
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--red
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color1 = '#cb1578',
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color9 = '#dc5e86',
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--green
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color2 = '#8ecb15',
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color10 = '#9edc60',
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--yellow
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color3 = '#cb9a15',
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color11 = '#dcb65e',
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--blue
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color4 = '#6f15cb',
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color12 = '#7e5edc',
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--purple
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color5 = '#cb15c9',
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color13 = '#b75edc',
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--cyan
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color6 = '#15b4cb',
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color14 = '#5edcb4',
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--white
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color7 = '#888a85',
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color15 = '#ffffff',
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--
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background = '#0e0021',
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foreground = '#bcbcbc',
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}
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--- Get current base colorscheme from xrdb.
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-- @treturn table Color table with keys 'background', 'foreground' and 'color0'..'color15'
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function xresources.get_current_theme()
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local keys = { 'background', 'foreground' }
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for i=0,15 do table.insert(keys, "color"..i) end
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local colors = {}
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for _, key in ipairs(keys) do
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colors[key] = awesome.xrdb_get_value("", key)
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if not colors[key] then
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print("W: beautiful: can't get colorscheme from xrdb (using fallback).")
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return fallback
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end
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end
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return colors
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end
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local dpi_per_screen = {}
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--- Get global or per-screen DPI value falling back to xrdb.
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-- @tparam[opt=focused] integer s The screen.
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-- @treturn number DPI value.
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function xresources.get_dpi(s)
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if dpi_per_screen[s] then
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return dpi_per_screen[s]
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end
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if not xresources.dpi then
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xresources.dpi = tonumber(awesome.xrdb_get_value("", "Xft.dpi") or 96)
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end
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return xresources.dpi
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end
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--- Set DPI for a given screen (defaults to global).
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-- @tparam number dpi DPI value.
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-- @tparam[opt] integer s Screen.
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function xresources.set_dpi(dpi, s)
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if not s then
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xresources.dpi = dpi
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else
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dpi_per_screen[s] = dpi
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end
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end
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--- Compute resulting size applying current DPI value (optionally per screen).
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-- @tparam number size Size
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-- @tparam[opt] integer s The screen.
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-- @treturn integer Resulting size (rounded to integer).
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function xresources.apply_dpi(size, s)
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return floor(size/96*xresources.get_dpi(s) + 0.5)
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end
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return xresources
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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