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Diffstat (limited to 'WebContent/VAADIN/themes/valo/util/_blend-modes.scss')
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1 files changed, 532 insertions, 0 deletions
diff --git a/WebContent/VAADIN/themes/valo/util/_blend-modes.scss b/WebContent/VAADIN/themes/valo/util/_blend-modes.scss new file mode 100644 index 0000000000..3da575660d --- /dev/null +++ b/WebContent/VAADIN/themes/valo/util/_blend-modes.scss @@ -0,0 +1,532 @@ +// From https://github.com/heygrady/scss-blend-modes +// MIT license +// Remember to add a license notice to Vaadin + +//-------------------------------- +// Normal +//-------------------------------- +@function blend-normal ($foreground, $background) { + $opacity: opacity($foreground); + $background-opacity: opacity($background); + + // calculate opacity + $bm-red: red($foreground) * $opacity + red($background) * $background-opacity * (1 - $opacity); + $bm-green: green($foreground) * $opacity + green($background) * $background-opacity * (1 - $opacity); + $bm-blue: blue($foreground) * $opacity + blue($background) * $background-opacity * (1 - $opacity); + @return rgb($bm-red, $bm-green, $bm-blue); +} + +//-------------------------------- +// Multiply +//-------------------------------- +@function blend-multiply ($foreground, $background) { + $bm-red: red($background) * red($foreground) / 255; + $bm-green: green($background) * green($foreground) / 255; + $bm-blue: blue($background) * blue($foreground) / 255; + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +//-------------------------------- +// Lighten +//-------------------------------- +@function blend-lighten ($foreground, $background) { + $bm-red: blend-lighten-color(red($foreground), red($background)); + $bm-green: blend-lighten-color(green($foreground), green($background)); + $bm-blue: blend-lighten-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-lighten-color($foreground, $background) { + @if $background > $foreground { + $foreground: $background; + } + @return $foreground; +} + +//-------------------------------- +// Darken +//-------------------------------- +@function blend-darken ($foreground, $background) { + $bm-red: blend-darken-color(red($foreground), red($background)); + $bm-green: blend-darken-color(green($foreground), green($background)); + $bm-blue: blend-darken-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-darken-color($foreground, $background) { + @if $background < $foreground { + $foreground: $background; + } + @return $foreground; +} + +//-------------------------------- +// Darker Color +//-------------------------------- +@function blend-darkercolor ($foreground, $background) { + $bm-red: red($foreground); + $bm-green: green($foreground); + $bm-blue: blue($foreground); + $background-red: red($background); + $background-green: green($background); + $background-blue: blue($background); + + @if $background-red * 0.3 + $background-green * 0.59 + $background-blue * 0.11 <= $bm-red * 0.3 + $bm-green * 0.59 + $bm-blue * 0.11 { + $bm-red: $background-red; + $bm-green: $background-green; + $bm-blue: $background-blue; + } + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +//-------------------------------- +// Lighter Color +//-------------------------------- +@function blend-lightercolor ($foreground, $background) { + $bm-red: red($foreground); + $bm-green: green($foreground); + $bm-blue: blue($foreground); + $background-red: red($background); + $background-green: green($background); + $background-blue: blue($background); + + @if $background-red * 0.3 + $background-green * 0.59 + $background-blue * 0.11 > $bm-red * 0.3 + $bm-green * 0.59 + $bm-blue * 0.11 { + $bm-red: $background-red; + $bm-green: $background-green; + $bm-blue: $background-blue; + } + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +//-------------------------------- +// Linear Dodge +//-------------------------------- +@function blend-lineardodge ($foreground, $background) { + $bm-red: blend-lineardodge-color(red($foreground), red($background)); + $bm-green: blend-lineardodge-color(green($foreground), green($background)); + $bm-blue: blend-lineardodge-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-lineardodge-color($foreground, $background) { + @if $background + $foreground > 255 { + $foreground: 255; + } + @else { + $foreground: $background + $foreground; + } + @return $foreground; +} + +//-------------------------------- +// Linear Burn +//-------------------------------- +@function blend-linearburn ($foreground, $background) { + $bm-red: blend-linearburn-color(red($foreground), red($background)); + $bm-green: blend-linearburn-color(green($foreground), green($background)); + $bm-blue: blend-linearburn-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-linearburn-color($foreground, $background) { + @if $background + $foreground < 255 { + $foreground: 0; + } + @else { + $foreground: $background + $foreground - 255; + } + @return $foreground; +} + +//-------------------------------- +// Difference +//-------------------------------- +@function blend-difference ($foreground, $background) { + $bm-red: abs(red($background) - red($foreground)); + $bm-green: abs(green($background) - green($foreground)); + $bm-blue: abs(blue($background) - blue($foreground)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +//-------------------------------- +// Screen +//-------------------------------- +@function blend-screen ($foreground, $background) { + $bm-red: blend-screen-color(red($foreground), red($background)); + $bm-green: blend-screen-color(green($foreground), green($background)); + $bm-blue: blend-screen-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-screen-color($foreground, $background) { + @return (255 - ( ( (255 - $foreground) * (255 - $background)) / 256)); +} + +//-------------------------------- +// Exclusion +//-------------------------------- +@function blend-exclusion ($foreground, $background) { + $bm-red: blend-exclusion-color(red($foreground), red($background)); + $bm-green: blend-exclusion-color(green($foreground), green($background)); + $bm-blue: blend-exclusion-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-exclusion-color($foreground, $background) { + @return $background - ($background * (2 / 255) - 1) * $foreground; +} + +//-------------------------------- +// Overlay +//-------------------------------- +@function blend-overlay ($foreground, $background) { + $bm-red: blend-overlay-color(red($foreground), red($background)); + $bm-green: blend-overlay-color(green($foreground), green($background)); + $bm-blue: blend-overlay-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-overlay-color($foreground, $background) { + @if $background <= 255 / 2 { + $foreground: (2 * $background * $foreground) / 255; + } @else { + $foreground: 255 - (255 - 2 * ($background - (255 / 2))) * (255 - $foreground) / 255; + } + @return $foreground; +} + +//-------------------------------- +// Soft Light +//-------------------------------- +@function blend-softlight ($foreground, $background) { + $bm-red: blend-softlight-color(red($foreground), red($background)); + $bm-green: blend-softlight-color(green($foreground), green($background)); + $bm-blue: blend-softlight-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-softlight-color($foreground, $background) { + @if $background < 128 { + $foreground: (($foreground / 2) + 64) * $background * (2 / 255); + } @else { + $foreground: 255 - (191 - ($foreground / 2)) * (255 - $background) * (2 / 255); + } + @return $foreground; +} + +//-------------------------------- +// Hard Light +//-------------------------------- +@function blend-hardlight ($foreground, $background) { + $bm-red: blend-hardlight-color(red($foreground), red($background)); + $bm-green: blend-hardlight-color(green($foreground), green($background)); + $bm-blue: blend-hardlight-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-hardlight-color($foreground, $background) { + $tmp-blend: $foreground; + @if $tmp-blend < 128 { + $foreground: $background * $tmp-blend * (2 / 255); + } @else { + $foreground: 255 - (255-$background) * (255-$tmp-blend) * (2 / 255); + } + @return $foreground; +} + +//-------------------------------- +// Color Dodge +//-------------------------------- +@function blend-colordodge ($foreground, $background) { + $bm-red: blend-colordodge-color(red($foreground), red($background)); + $bm-green: blend-colordodge-color(green($foreground), green($background)); + $bm-blue: blend-colordodge-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-colordodge-color($foreground, $background) { + $tmp: $background * 256 / (255 - $foreground); + @if $tmp > 255 or $foreground == 255 { + $foreground: 255; + } @else { + $foreground: $tmp; + } + @return $foreground; +} + +//-------------------------------- +// Color Burn +//-------------------------------- +@function blend-colorburn ($foreground, $background) { + $bm-red: blend-colorburn-color(red($foreground), red($background)); + $bm-green: blend-colorburn-color(green($foreground), green($background)); + $bm-blue: blend-colorburn-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-colorburn-color($foreground, $background) { + $tmp: (255 - ((255 - $background) * 255) / $foreground); + + // TODO: hacked to replicate photoshop + @if $foreground == 0 { + $foreground: 255; + } @elseif $tmp < 0 { + $foreground: 0; + } @else { + $foreground: $tmp; + } + @return $foreground; +} + +//-------------------------------- +// Linear Light +//-------------------------------- +@function blend-linearlight ($foreground, $background) { + $bm-red: blend-linearlight-color(red($foreground), red($background)); + $bm-green: blend-linearlight-color(green($foreground), green($background)); + $bm-blue: blend-linearlight-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-linearlight-color($foreground, $background) { + @if $foreground < 128 { + $foreground: blend-linearburn-color($background, 2 * $foreground); + } @else { + $foreground: blend-lineardodge-color($background, 2 * ($foreground - 128)); + } + @return $foreground; +} + +//-------------------------------- +// Vivid Light +//-------------------------------- +@function blend-vividlight ($foreground, $background) { + $bm-red: blend-vividlight-color(red($foreground), red($background)); + $bm-green: blend-vividlight-color(green($foreground), green($background)); + $bm-blue: blend-vividlight-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +@function blend-vividlight-color($foreground, $background) { + @if $foreground < 128 { + $foreground: blend-colorburn-color(2 * $foreground, $background); + } @else { + $foreground: blend-colordodge-color(2 * ($foreground - 128), $background); + } + @return $foreground; +} + +//-------------------------------- +// Pin Light +//-------------------------------- +@function blend-pinlight ($foreground, $background) { + $bm-red: blend-pinlight-color(red($foreground), red($background)); + $bm-green: blend-pinlight-color(green($foreground), green($background)); + $bm-blue: blend-pinlight-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +@function blend-pinlight-color($foreground, $background) { + @if $foreground < 128 { + $foreground: blend-darken-color($background, 2 * $foreground); + } @else { + $foreground: blend-lighten-color($background, 2 * ($foreground - 128)); + } + @return $foreground; +} + +//-------------------------------- +// Hard Mix +//-------------------------------- +@function blend-hardmix ($foreground, $background) { + $bm-red: blend-hardmix-color(red($foreground), red($background)); + $bm-green: blend-hardmix-color(green($foreground), green($background)); + $bm-blue: blend-hardmix-color(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +@function blend-hardmix-color($foreground, $background) { + $tmp: blend-vividlight-color($foreground, $background); + @if $tmp < 128 { + $foreground: 0; + } @else { + $foreground: 255; + } + @return $foreground; +} + + +// Unique to Photoshop + +//-------------------------------- +// Color Blend +//-------------------------------- +@function blend-colorblend ($foreground, $background) { + $foreground-hsv: color-to-hsv($foreground); + $background-hsv: color-to-hsv($background); + + $bm-hsv: nth($foreground-hsv, 1), nth($foreground-hsv, 2), nth($background-hsv, 3); + $bm-color: hsv-to-color($bm-hsv); + + @return blend-normal(rgba(red($bm-color), green($bm-color), blue($bm-color), opacity($foreground)), $background); +} + +//-------------------------------- +// Dissolve +//-------------------------------- +@function blend-dissolve ($foreground, $background) { + // The Dissolve blend mode acts on transparent and partially transparent pixels + // it treats transparency as a pixel pattern and applies a diffusion dither pattern. + // @see http://photoblogstop.com/photoshop/photoshop-blend-modes-explained + @return $foreground; +} + +//-------------------------------- +// Divide +//-------------------------------- +@function blend-divide ($foreground, $background) { + $bm-red: blend-divide-colors(red($foreground), red($background)); + $bm-green: blend-divide-colors(green($foreground), green($background)); + $bm-blue:blend-divide-colors(blue($foreground), blue($background)); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} +@function blend-divide-colors($foreground, $background) { + @return min((($background / 255) / ($foreground / 255)) * 255, 255); +} + +//-------------------------------- +// Hue +//-------------------------------- +@function blend-hue ($foreground, $background) { + $foreground-hsv: color-to-hsv($foreground); + $background-hsv: color-to-hsv($background); + + $bm-hsv: nth($foreground-hsv, 1), nth($background-hsv, 2), nth($background-hsv, 3); + $bm-color: hsv-to-color($bm-hsv); + + @return blend-normal(rgba(red($bm-color), green($bm-color), blue($bm-color), opacity($foreground)), $background); +} + +//-------------------------------- +// Luminosity +//-------------------------------- +@function blend-luminosity ($foreground, $background) { + $foreground-hsv: color-to-hsv($foreground); + $background-hsv: color-to-hsv($background); + + $bm-hsv: nth($background-hsv, 1), nth($background-hsv, 2), nth($foreground-hsv, 3); + $bm-color: hsv-to-color($bm-hsv); + + @return blend-normal(rgba(red($bm-color), green($bm-color), blue($bm-color), opacity($foreground)), $background); +} + +//-------------------------------- +// Saturation +//-------------------------------- +@function blend-saturation ($foreground, $background) { + $foreground-hsv: color-to-hsv($foreground); + $background-hsv: color-to-hsv($background); + + $bm-hsv: nth($background-hsv, 1), nth($foreground-hsv, 2), nth($background-hsv, 3); + $bm-color: hsv-to-color($bm-hsv); + + @return blend-normal(rgba(red($bm-color), green($bm-color), blue($bm-color), opacity($foreground)), $background); +} + +//-------------------------------- +// Subtract +//-------------------------------- +@function blend-subtract ($foreground, $background) { + $bm-red: max(red($background) - red($foreground), 0); + $bm-green: max(green($background) - green($foreground), 0); + $bm-blue: max(blue($background) - blue($foreground), 0); + + @return blend-normal(rgba($bm-red, $bm-green, $bm-blue, opacity($foreground)), $background); +} + +//-------------------------------- +// HSL and HSV +//-------------------------------- +// @see https://gist.github.com/1069204 +@function hsv-to-hsl($h, $s: 0, $v: 0) { + @if type-of($h) == 'list' { + $v: nth($h, 3); + $s: nth($h, 2); + $h: nth($h, 1); + } + + @if unit($h) == 'deg' { + $h: 3.1415 * 2 * ($h / 360deg); + } + @if unit($s) == '%' { + $s: 0 + ($s / 100%); + } + @if unit($v) == '%' { + $v: 0 + ($v / 100%); + } + + $ss: $s * $v; + $ll: (2 - $s) * $v; + + @if $ll <= 1 { + $ss: $ss / $ll; + } @else if ($ll == 2) { + $ss: 0; + } @else { + $ss: $ss / (2 - $ll); + } + + $ll: $ll / 2; + + @return 360deg * $h / (3.1415 * 2), percentage(max(0, min(1, $ss))), percentage(max(0, min(1, $ll))); +} + +@function hsl-to-hsv($h, $ss: 0, $ll: 0) { + @if type-of($h) == 'list' { + $ll: nth($h, 3); + $ss: nth($h, 2); + $h: nth($h, 1); + } @else if type-of($h) == 'color' { + $ll: lightness($h); + $ss: saturation($h); + $h: hue($h); + } + + @if unit($h) == 'deg' { + $h: 3.1415 * 2 * ($h / 360deg); + } + @if unit($ss) == '%' { + $ss: 0 + ($ss / 100%); + } + @if unit($ll) == '%' { + $ll: 0 + ($ll / 100%); + } + + $ll: $ll * 2; + + @if $ll <= 1 { + $ss: $ss * $ll; + } @else { + $ss: $ss * (2 - $ll); + } + + $v: ($ll + $ss) / 2; + $s: (2 * $ss) / ($ll + $ss); + + @return 360deg * $h / (3.1415 * 2), percentage(max(0, min(1, $s))), percentage(max(0, min(1, $v))); +} + +@function color-to-hsv($color) { + @return hsl-to-hsv($color); +} + +@function hsv-to-color($h, $s: 0, $v: 0) { + $hsl: hsv-to-hsl($h, $s, $v); + @return hsl(nth($hsl, 1), nth($hsl, 2), nth($hsl, 3)); +}
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