Simpler gradient output by discarding from() and to()
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@ -1,44 +1,58 @@
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=gradient(!type, !coords, !color_start, !color_end, !color_stop = false)
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// This yields a linear gradient spanning from top to bottom
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!gradient= "#{!coords}, from(#{!color_start}), to(#{!color_end})"
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//
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@if !color_stop
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// +linear-gradient(color_stops(white, black))
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!gradient= !gradient + ", " + !color_stop
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//
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background: -webkit-gradient(#{!type}, #{!gradient})
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// This yields a linear gradient spanning from bottom to top
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background: -moz-#{!type}-gradient(#{!gradient})
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//
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// +linear-gradient(color_stops(white, black), "bottom")
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//*
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//
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// This will yield a radial gradient with an apparent specular highlight
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// This yields a linear gradient spanning from left to right
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+radial-gradient("45 45, 10, 52 50, 30", Cyan, DodgerBlue)
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//
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// +linear-gradient(color_stops(white, black), "left")
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=radial-gradient(!coords, !color1, !color2, !color_stop = false)
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//
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+gradient("radial", !coords, !color1, !color2, !color_stop)
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// This yields a linear gradient starting at white passing
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// thru blue at 33% down and then to black
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//*
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//
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// This yields a linear gradient spanning from top to bottom
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// +linear-gradient(color_stops(white, blue 33%, black))
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+linear-gradient(color_stops(white, black))
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//
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// This yields a linear gradient starting at white passing
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// This yields a linear gradient spanning from bottom to top
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// thru blue at 33% down and then to black at 67% until the end
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+linear-gradient(color_stops(white, black), "bottom")
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//
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// +linear-gradient(color_stops(white, blue 33%, black 67%))
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// This yields a linear gradient spanning from left to right
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//
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+linear-gradient(color_stops(white, black), "left")
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// Browsers Supported:
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//
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// This yields a linear gradient starting at white passing
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// - Chrome
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// thru blue at 33% down and then to black
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// - Safari
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+linear-gradient(color_stops(white, blue 33%, black))
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// - Firefox 3.6
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// This yields a linear gradient starting at white passing
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// thru blue at 33% down and then to black at 67% until the end
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+linear-gradient(color_stops(white, blue 33%, black 67%))
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=linear-gradient(!color_stops, !start = "top")
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=linear-gradient(!color_stops, !start = "top")
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// Firefox's gradient api is nice.
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// Firefox's gradient api is nice.
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// Webkit's gradient api sucks -- hence these backflips:
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// Webkit's gradient api sucks -- hence these backflips:
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!end = grad_opposite_position(!start)
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!end = grad_opposite_position(!start)
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!start_color = grad_start_color(!color_stops)
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background-image: -webkit-gradient(linear, #{grad_point(!start)}, #{grad_point(!end)}, #{grad_color_stops(!color_stops)})
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!end_color = grad_end_color(!color_stops)
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!webkit_stops = grad_color_stops(!color_stops)
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!gradient= "#{grad_point(!start)}, #{grad_point(!end)}, from(#{!start_color}), to(#{!end_color})"
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@if !webkit_stops
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!gradient= !gradient + ", " + !webkit_stops
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background-image: -webkit-gradient(linear, #{!gradient})
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background-image: -moz-linear-gradient(#{!start}, #{!color_stops})
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background-image: -moz-linear-gradient(#{!start}, #{!color_stops})
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// Due to limitation's of webkit, the radial gradient mixin works best if you use
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// pixel-based color stops.
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//
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// Examples:
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//
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// // Defaults to a centered, 100px radius gradient
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// +radial-gradient(color_stops(#c00, #00c))
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// // 100px radius gradient in the top left corner
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// +radial-gradient(color_stops(#c00, #00c), "top left")
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// // Three colors, ending at 50px and passing thru #fff at 25px
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// +radial-gradient(color_stops(#c00, #fff, #00c 50px))
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//
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// Browsers Supported:
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//
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// - Chrome
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// - Safari
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// - Firefox 3.6
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=radial-gradient(!color_stops, !center_position = "center center")
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!end_pos = grad_end_position(!color_stops, true)
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background-image: -webkit-gradient(radial, #{grad_point(!center_position)}, 0, #{grad_point(!center_position)}, #{!end_pos}, #{grad_color_stops(!color_stops)})
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background-image: -moz-radial-gradient(#{!center_position}, circle, #{!color_stops})
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@ -25,8 +25,11 @@ module Compass::SassExtensions::Functions::GradientSupport
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s = "#{color}"
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s = "#{color}"
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if stop
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if stop
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s << " "
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s << " "
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s << stop.times(Sass::Script::Number.new(100)).to_s
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if stop.unitless?
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s << "%"
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s << stop.times(Sass::Script::Number.new(100, ["%"])).to_s
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else
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s << stop.to_s
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end
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end
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end
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s
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s
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end
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end
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@ -41,6 +44,7 @@ module Compass::SassExtensions::Functions::GradientSupport
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when "bottom" then "top"
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when "bottom" then "top"
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when "left" then "right"
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when "left" then "right"
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when "right" then "left"
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when "right" then "left"
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when "center" then "center"
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else
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else
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raise Sass::SyntaxError, "Cannot determine the opposite of #{pos}"
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raise Sass::SyntaxError, "Cannot determine the opposite of #{pos}"
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end
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end
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@ -50,49 +54,53 @@ module Compass::SassExtensions::Functions::GradientSupport
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# returns color-stop() calls for use in webkit.
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# returns color-stop() calls for use in webkit.
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def grad_color_stops(color_list)
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def grad_color_stops(color_list)
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positions = color_list.values.map{|c| [c.stop && c.stop.value, c.color]}
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normalize_stops!(color_list)
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# fill in the blank positions
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max = color_list.values.last.stop
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positions[0][0] = 0 unless positions.first.first
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color_stops = color_list.values.map do |pos|
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positions[positions.size - 1][0] = 1 unless positions.last.first
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# have to convert absolute units to percentages for use in color stop functions.
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for i in 0...positions.size
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stop = pos.stop
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if positions[i].first.nil?
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stop = stop.div(max).times(Sass::Script::Number.new(100,["%"])) if stop.numerator_units == max.numerator_units
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num = 2.0
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"color-stop(#{stop}, #{pos.color})"
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for j in (i+1)...positions.size
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end
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if positions[j].first
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Sass::Script::String.new(color_stops.join(", "))
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positions[i][0] = positions[i-1].first + (positions[j].first - positions[i-1].first) / num
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end
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break
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else
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# returns the end position of the gradient from the color stop
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num += 1
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def grad_end_position(color_list, radial = Sass::Script::Bool.new(false))
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end
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default = Sass::Script::Number.new(100)
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grad_position(color_list, Sass::Script::Number.new(color_list.values.size), default, radial)
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end
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def grad_position(color_list, index, default, radial = Sass::Script::Bool.new(false))
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stop = color_list.values[index.value - 1].stop
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if stop && radial.to_bool
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orig_stop = stop
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if stop.unitless?
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if stop.value <= 1
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# A unitless number is assumed to be a percentage when it's between 0 and 1
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stop = stop.times(Sass::Script::Number.new(100, ["%"]))
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else
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# Otherwise, a unitless number is assumed to be in pixels
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stop = stop.times(Sass::Script::Number.new(1, ["px"]))
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end
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end
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end
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end
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end
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if stop.numerator_units == ["%"] && color_list.values.last.stop && color_list.values.last.stop.numerator_units == ["px"]
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positions = positions[1..-1] if positions.first.first == 0.0
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stop = stop.times(color_list.values.last.stop).div(Sass::Script::Number.new(100, ["%"]))
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positions = positions[0..-2] if positions.last.first == 1.0
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end
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if positions.empty?
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Compass::Logger.new.record(:warning, "Webkit only supports pixels for the start and end stops for radial gradients. Got: #{orig_stop}") if stop.numerator_units != ["px"]
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# We return false here since sass has no nil.
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stop.div(Sass::Script::Number.new(1, stop.numerator_units, stop.denominator_units))
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Sass::Script::Bool.new(false)
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elsif stop
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stop
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else
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else
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color_stops = positions.map {|pos| "color-stop(#{Sass::Script::Number.new((pos.first*10000).round/100.0).to_s}%, #{pos.last})"}
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default
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Sass::Script::String.new(color_stops.join(", "))
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end
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end
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end
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end
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# the first color from a list of color stops
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def grad_start_color(color_list)
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color_list.values.first.color
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end
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# the last color from a list of color stops
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def grad_end_color(color_list)
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color_list.values.last.color
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end
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# the given a position, return a point in percents
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# the given a position, return a point in percents
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def grad_point(position)
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def grad_point(position)
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position = position.value
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position = position.value
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position = if position[" "]
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position = if position[" "]
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if position =~ /(top|bottom) (left|right)/
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if position =~ /(top|bottom|center) (left|right|center)/
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"#{$2} #{$1}"
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"#{$2} #{$1}"
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else
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else
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position
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position
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@ -103,9 +111,16 @@ module Compass::SassExtensions::Functions::GradientSupport
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"left #{position}"
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"left #{position}"
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when /left|right/
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when /left|right/
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"#{position} top"
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"#{position} top"
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else
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position
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end
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end
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end
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end
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Sass::Script::String.new position.gsub(/top/, "0%").gsub(/bottom/, "100%").gsub(/left/,"0%").gsub(/right/,"100%")
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Sass::Script::String.new(position.
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gsub(/top/, "0%").
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gsub(/bottom/, "100%").
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gsub(/left/,"0%").
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gsub(/right/,"100%").
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gsub(/center/, "50%"))
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end
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end
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def color_stops(*args)
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def color_stops(*args)
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end
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end
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stop = Sass::Script::Number.new(number)
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stop = Sass::Script::Number.new(number)
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elsif !stop.nil?
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elsif !stop.nil?
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raise Sass::SyntaxError, "A color stop location must be between 0 and 1 or 0% and 100%. Got: #{stop}"
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number = Sass::Script::Parser.parse(stop, 0, 0)
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unless number.is_a?(Sass::Script::Number)
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raise Sass::SyntaxError, "A color stop location must be a number. Got: #{stop}"
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end
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stop = number
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end
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end
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ColorStop.new(color, stop)
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ColorStop.new(color, stop)
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else
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else
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@ -133,5 +152,35 @@ module Compass::SassExtensions::Functions::GradientSupport
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end
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end
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end)
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end)
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end
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end
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private
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def normalize_stops!(color_list)
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positions = color_list.values
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# fill in the start and end positions, if unspecified
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positions.first.stop = Sass::Script::Number.new(0) unless positions.first.stop
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positions.last.stop = Sass::Script::Number.new(100, ["%"]) unless positions.last.stop
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# fill in empty values
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for i in 0...positions.size
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if positions[i].stop.nil?
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num = 2.0
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for j in (i+1)...positions.size
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if positions[j].stop
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positions[i].stop = positions[i-1].stop.plus((positions[j].stop.minus(positions[i-1].stop)).div(Sass::Script::Number.new(num)))
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break
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else
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num += 1
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end
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end
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end
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end
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# normalize unitless numbers
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positions.each do |pos|
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if pos.stop.unitless? && pos.stop.value <= 1
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pos.stop = pos.stop.times(Sass::Script::Number.new(100, ["%"]))
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elsif pos.stop.unitless?
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pos.stop = pos.stop.times(Sass::Script::Number.new(1, ["px"]))
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end
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end
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nil
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end
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end
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end
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end
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end
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@ -1,43 +1,71 @@
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.linear-1 {
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.linear-1 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd, #aaaaaa); }
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background-image: -moz-linear-gradient(top, #dddddd 0%, #aaaaaa 100%); }
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.linear-2 {
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.linear-2 {
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#dddddd), to(#aaaaaa));
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(left, #dddddd, #aaaaaa); }
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background-image: -moz-linear-gradient(left, #dddddd 0%, #aaaaaa 100%); }
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.linear-3 {
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.linear-3 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 100%, from(#dddddd), to(#aaaaaa));
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background-image: -webkit-gradient(linear, 0% 0%, 100% 100%, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top left, #dddddd, #aaaaaa); }
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background-image: -moz-linear-gradient(top left, #dddddd 0%, #aaaaaa 100%); }
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.linear-4 {
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.linear-4 {
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background-image: -webkit-gradient(linear, 0% 100%, 100% 0%, from(#dddddd), to(#aaaaaa));
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background-image: -webkit-gradient(linear, 100% 0%, 0% 100%, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top right, #dddddd, #aaaaaa); }
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background-image: -moz-linear-gradient(top right, #dddddd 0%, #aaaaaa 100%); }
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.linear-5 {
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.linear-5 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(50%, #cccccc));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(0%, #dddddd), color-stop(50%, #cccccc), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd, #cccccc, #aaaaaa); }
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background-image: -moz-linear-gradient(top, #dddddd 0%, #cccccc 50%, #aaaaaa 100%); }
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.linear-6 {
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.linear-6 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(20%, #cccccc));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(0%, #dddddd), color-stop(20%, #cccccc), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd, #cccccc 20%, #aaaaaa); }
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background-image: -moz-linear-gradient(top, #dddddd 0%, #cccccc 20%, #aaaaaa 100%); }
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.linear-7 {
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.linear-7 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(20%, #cccccc), color-stop(60%, #eeeeee));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(0%, #dddddd), color-stop(20%, #cccccc), color-stop(50.1%, #eeeeee), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd, #cccccc 20%, #eeeeee, #aaaaaa); }
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background-image: -moz-linear-gradient(top, #dddddd 0%, #cccccc 20%, #eeeeee 50.1%, #aaaaaa 100%); }
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.linear-8 {
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.linear-8 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(80%, #dddddd));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(80%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd 80%, #aaaaaa); }
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background-image: -moz-linear-gradient(top, #dddddd 80%, #aaaaaa 100%); }
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.linear-9 {
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.linear-9 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(20%, #aaaaaa));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd, #aaaaaa 20%); }
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background-image: -moz-linear-gradient(top, #dddddd 0%, #aaaaaa 20%); }
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.linear-10 {
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.linear-10 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(40%, #dddddd), color-stop(50%, #aaaaaa));
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background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(80%, #dddddd), color-stop(100%, #aaaaaa));
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background-image: -moz-linear-gradient(top, #dddddd 40%, #aaaaaa 50%); }
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background-image: -moz-linear-gradient(top, #dddddd 40%, #aaaaaa 50%); }
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.linear-11 {
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.linear-11 {
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background-image: -webkit-gradient(linear, 0% 0%, 100% 0%, from(#dddddd), to(#aaaaaa), color-stop(40%, #dddddd), color-stop(45%, black), color-stop(50%, #aaaaaa));
|
background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(80%, #dddddd), color-stop(90%, black), color-stop(100%, #aaaaaa));
|
||||||
background-image: -moz-linear-gradient(top, #dddddd 40%, black, #aaaaaa 50%); }
|
background-image: -moz-linear-gradient(top, #dddddd 40%, black 45%, #aaaaaa 50%); }
|
||||||
|
|
||||||
|
.radial-1 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 50%, 0, 50% 50%, 100, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(center center, circle, #dddddd 0%, #aaaaaa 100%); }
|
||||||
|
|
||||||
|
.radial-2 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 50%, 0, 50% 50%, 100, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(center center, circle, #dddddd 0%, #aaaaaa 100%); }
|
||||||
|
|
||||||
|
.radial-3 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 0%, 0, 50% 0%, 100, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(top center, circle, #dddddd 0%, #aaaaaa 100%); }
|
||||||
|
|
||||||
|
.radial-4 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 50%, 0, 50% 50%, 100, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(center center, circle, #dddddd 0%, #aaaaaa 100%); }
|
||||||
|
|
||||||
|
.radial-5 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 0%, 0, 50% 0%, 100, color-stop(0%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(top center, circle, #dddddd 0%, #aaaaaa 100%); }
|
||||||
|
|
||||||
|
.radial-6 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 50%, 0, 50% 50%, 50, color-stop(40%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(center center, circle, #dddddd 20px, #aaaaaa 50px); }
|
||||||
|
|
||||||
|
.radial-7 {
|
||||||
|
background-image: -webkit-gradient(radial, 50% 50%, 0, 50% 50%, 50, color-stop(20%, #dddddd), color-stop(100%, #aaaaaa));
|
||||||
|
background-image: -moz-radial-gradient(center center, circle, #dddddd 20%, #aaaaaa 50px); }
|
||||||
|
@ -21,4 +21,28 @@
|
|||||||
.linear-10
|
.linear-10
|
||||||
+linear-gradient(color_stops(#ddd 40%, #aaa 50%))
|
+linear-gradient(color_stops(#ddd 40%, #aaa 50%))
|
||||||
.linear-11
|
.linear-11
|
||||||
+linear-gradient(color_stops(#ddd 40%, #000, #aaa 50%))
|
+linear-gradient(color_stops(#ddd 40%, #000, #aaa 50%))
|
||||||
|
.radial-1
|
||||||
|
// A default radial gradient:
|
||||||
|
// A centered gradient having the shape of the container (aka ellipse)
|
||||||
|
+radial-gradient(color_stops(#ddd, #aaa))
|
||||||
|
.radial-2
|
||||||
|
// A centered gradient having the shape of the container (aka ellipse)
|
||||||
|
+radial-gradient(color_stops(#ddd, #aaa))
|
||||||
|
.radial-3
|
||||||
|
// A centered gradient at the top having the shape of the container (aka ellipse)
|
||||||
|
+radial-gradient(color_stops(#ddd, #aaa), "top center")
|
||||||
|
.radial-4
|
||||||
|
// A centered gradient having a circular shape
|
||||||
|
+radial-gradient(color_stops(#ddd, #aaa))
|
||||||
|
.radial-5
|
||||||
|
// A centered gradient at the top having a circular shape
|
||||||
|
+radial-gradient(color_stops(#ddd, #aaa), "top center")
|
||||||
|
.radial-6
|
||||||
|
// A centered circular gradient with color stops
|
||||||
|
// The color stops must be absolute units
|
||||||
|
+radial-gradient(color_stops(#ddd 20px, #aaa 50px))
|
||||||
|
.radial-7
|
||||||
|
// A centered elliptical gradient with color stops
|
||||||
|
// The color stops must be relative units
|
||||||
|
+radial-gradient(color_stops(#ddd 20%, #aaa 50px))
|
||||||
|
Loading…
Reference in New Issue
Block a user