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@import "compass/css3/box-shadow";
@import "compass/css3/text-shadow";
$photoshop-global-light: 120deg !default;
//--------------------------------
// Photoshop Shadow Function
//--------------------------------
@function photoshop-shadow( $angle: $photoshop-global-light, $distance: 0, $spread: 0, $size: 0, $color: #000, $inner: false ) {
// default to degrees, same as photoshop
@if unitless($angle) {
$angle: $angle * 1deg;
}
// compass has a bug converting degrees (fixed in Compass 0.12)
// https://github.com/chriseppstein/compass/pull/666
@if unit($angle) == 'deg' {
// convert to radians to avoid issues
$angle: ((180 - ($angle/1deg)) * pi() / 180);
}
//TODO: other angle units, including rad, will cause issues
// SASS doesn't do percentages cleanly
@if not(unitless($spread)) and unit($spread) == '%' {
// remove the percentage unit
$spread: $spread/1%;
} @else if $spread < 0 {
// correct for passing the spread as a decimal
$spread: $spread * 100;
}
$h-shadow: round(cos($angle) * $distance);
$v-shadow: round(sin($angle) * $distance);
$css-spread: $size * ($spread/100);
$blur: $size - $css-spread;
$inset: if($inner != false, 'inset', '');
@return ( $h-shadow $v-shadow $blur $css-spread $color unquote($inset) );
}
@function photoshop-text-shadow( $angle: $photoshop-global-light, $distance: 0, $spread: 0, $size: 0, $color: #000 ) {
$shadow: photoshop-shadow($angle, $distance, $spread, $size, $color);
@return (nth($shadow, 1) nth($shadow, 2) nth($shadow, 3) nth($shadow, 5));
}
@function photoshop-glow($choke: 0, $size: 0, $color: #fff, $inner: false) {
@return photoshop-shadow(0, 0, $choke, $size, $color, $inner);
}
//--------------------------------
// Photoshop Drop Shadow
//--------------------------------
@mixin photoshop-drop-shadow ($angle: $photoshop-global-light, $distance: 0, $spread: 0, $size: 0, $color: #000) {
@include box-shadow(photoshop-shadow($angle, $distance, $spread, $size, $color));
}
//--------------------------------
// Photoshop Inner Shadow
//--------------------------------
@mixin photoshop-inner-shadow ($angle: $photoshop-global-light, $distance: 0, $spread: 0, $size: 0, $color: #000) {
@include box-shadow(photoshop-shadow($angle, $distance, $spread, $size, $color, true));
}
//--------------------------------
// Photoshop Text Shadow
//--------------------------------
@mixin photoshop-text-shadow ($angle: $photoshop-global-light, $distance: 0, $spread: 0, $size: 0, $color: #000) {
// NOTE: $spread has no effect for text shadows
@include text-shadow(photoshop-text-shadow($angle, $distance, $spread, $size, $color));
}
//--------------------------------
// Photoshop Outer Glow
//--------------------------------
@mixin photoshop-outer-glow ($choke: 0, $size: 0, $color: #fff) {
// experimantal
// noise, technique, source: center, and quality are not supported
@include box-shadow(photoshop-glow($choke, $size, $color, false));
}
//--------------------------------
// Photoshop Inner Glow
//--------------------------------
@mixin photoshop-inner-glow ($choke: 0, $size: 0, $color: #fff) {
// experimantal
// noise, technique, source: center, and quality are not supported
@include box-shadow(photoshop-glow($choke, $size, $color, true));
}