site-sdf/sass/bourbon/bourbon/library/_triangle.scss

83 lines
2.5 KiB
SCSS

@charset "UTF-8";
/// Generates a triangle pointing in a specified direction.
///
/// @argument {string} $direction
/// The direction the triangle should point. Accepts `up`, `up-right`,
/// `right`, `down-right`, `down`, `down-left`, `left` or `up-left`.
///
/// @argument {number (with unit)} $width
/// Width of the triangle.
///
/// @argument {number (with unit)} $height
/// Height of the triangle.
///
/// @argument {color} $color
/// Color of the triangle.
///
/// @example scss
/// .element {
/// &::before {
/// @include triangle("up", 2rem, 1rem, #b25c9c);
/// content: "";
/// }
/// }
///
/// // CSS Output
/// .element::before {
/// border-style: solid;
/// height: 0;
/// width: 0;
/// border-color: transparent transparent #b25c9c;
/// border-width: 0 1rem 1rem;
/// content: "";
/// }
@mixin triangle(
$direction,
$width,
$height,
$color
) {
@if not index(
"up" "up-right" "right" "down-right" "down" "down-left" "left" "up-left",
$direction
) {
@error "Direction must be `up`, `up-right`, `right`, `down-right`, " +
"`down`, `down-left`, `left` or `up-left`.";
} @else if not _is-color($color) {
@error "`#{$color}` is not a valid color for the `$color` argument in " +
"the `triangle` mixin.";
} @else {
border-style: solid;
height: 0;
width: 0;
@if $direction == "up" {
border-color: transparent transparent $color;
border-width: 0 ($width / 2) $height;
} @else if $direction == "up-right" {
border-color: transparent $color transparent transparent;
border-width: 0 $width $width 0;
} @else if $direction == "right" {
border-color: transparent transparent transparent $color;
border-width: ($height / 2) 0 ($height / 2) $width;
} @else if $direction == "down-right" {
border-color: transparent transparent $color;
border-width: 0 0 $width $width;
} @else if $direction == "down" {
border-color: $color transparent transparent;
border-width: $height ($width / 2) 0;
} @else if $direction == "down-left" {
border-color: transparent transparent transparent $color;
border-width: $width 0 0 $width;
} @else if $direction == "left" {
border-color: transparent $color transparent transparent;
border-width: ($height / 2) $width ($height / 2) 0;
} @else if $direction == "up-left" {
border-color: $color transparent transparent;
border-width: $width $width 0 0;
}
}
}