conky-config/core/super/Gradient.lua

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local _CAIRO_PATTERN_CREATE_RADIAL = cairo_pattern_create_radial
local _CAIRO_PATTERN_CREATE_LINEAR = cairo_pattern_create_linear
local _CAIRO_PATTERN_ADD_COLOR_STOP_RGBA = cairo_pattern_add_color_stop_rgba
local _PAIRS = pairs
local set_dimensions = function(gradient, p1, p2, r1, r2)
if p1 and p2 then
local pattern = (r1 and r2) and
_CAIRO_PATTERN_CREATE_RADIAL(p1.x, p1.y, r1, p2.x, p2.y, r2) or
_CAIRO_PATTERN_CREATE_LINEAR(p1.x, p1.y, p2.x, p2.y)
for _, color_stop in _PAIRS(gradient.color_stops) do
_CAIRO_PATTERN_ADD_COLOR_STOP_RGBA(pattern, color_stop.stop, color_stop.r,
color_stop.g, color_stop.b, color_stop.a)
end
gradient.userdata = pattern
end
end
return set_dimensions