mirror of https://github.com/sharkdp/bat.git
91 lines
2.0 KiB
Stylus
91 lines
2.0 KiB
Stylus
@import 'config'
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/*
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* Implicit color stop position.
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*/
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pos-in-stops(i, stops)
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len = length(stops)
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if len - 1 == i
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100%
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else if i
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unit(i / len * 100, '%')
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else
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0
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/*
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* Normalize color stops:
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*
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* - (color pos) -> (pos color)
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* - (color) -> (implied-pos color)
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*
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*/
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normalize-stops(stops)
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stops = clone(stops)
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for stop, i in stops
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if length(stop) == 1
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color = stop[0]
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stop[0] = pos-in-stops(i, stops)
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stop[1] = color
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else if typeof(stop[1]) == 'unit'
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pos = stop[1]
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stop[1] = stop[0]
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stop[0] = pos
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stops
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/*
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* Join color stops with the given translation function.
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*/
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join-stops(stops, translate)
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str = ''
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len = length(stops)
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for stop, i in stops
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str += ', ' if i
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pos = stop[0]
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color = stop[1]
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str += translate(color, pos)
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unquote(str)
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/*
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* Standard color stop.
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*/
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std-stop(color, pos)
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'%s %s' % (color pos)
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/*
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* Create a linear gradient with the given start position
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* and variable number of color stops.
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*
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* Examples:
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*
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* background: linear-gradient(top, red, green, blue)
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* background: linear-gradient(bottom, red, green 50%, blue)
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* background: linear-gradient(bottom, red, 50% green, blue)
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* background: linear-gradient(bottom, red, 50% green, 90% white, blue)
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*
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*/
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linear-gradient(start, stops...)
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error('color stops required') unless length(stops)
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unquote('linear-gradient(' + join(', ',arguments) + ')')
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/*
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* Create a linear gradient image with the given start position
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* and variable number of color stops.
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*/
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linear-gradient-image(start, stops...)
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error('node-canvas is required for linear-gradient-image()') unless has-canvas
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stops = stops[0] if length(stops) == 1
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error('gradient image size required') unless start[0] is a 'unit'
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size = start[0]
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start = start[1] or 'top'
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grad = create-gradient-image(size, start)
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stops = normalize-stops(stops)
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add-color-stop(grad, stop[0], stop[1]) for stop in stops
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'url(%s)' % gradient-data-uri(grad)
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