diff options
Diffstat (limited to 'src/functions/colors')
-rw-r--r-- | src/functions/colors/_apca.scss | 127 | ||||
-rw-r--r-- | src/functions/colors/_index.scss | 1 |
2 files changed, 0 insertions, 128 deletions
diff --git a/src/functions/colors/_apca.scss b/src/functions/colors/_apca.scss deleted file mode 100644 index 0c03529..0000000 --- a/src/functions/colors/_apca.scss +++ /dev/null | |||
@@ -1,127 +0,0 @@ | |||
1 | /* stylelint-disable scss/dollar-variable-pattern */ | ||
2 | /* stylelint-disable scss/at-function-pattern */ | ||
3 | |||
4 | @use 'sass:color'; | ||
5 | @use 'sass:list'; | ||
6 | @use 'sass:map'; | ||
7 | @use 'sass:math'; | ||
8 | |||
9 | $SA98G: ( | ||
10 | mainTRC: 2.4, | ||
11 | |||
12 | sRco: .2126729, | ||
13 | sGco: .7151522, | ||
14 | sBco: .072175, | ||
15 | |||
16 | normBG: .56, | ||
17 | normTXT: .57, | ||
18 | revTXT: .62, | ||
19 | revBG: .65, | ||
20 | |||
21 | blkThrs: .022, | ||
22 | blkClmp: 1.414, | ||
23 | scaleBoW: 1.14, | ||
24 | scaleWoB: 1.14, | ||
25 | loBoWoffset: .027, | ||
26 | loWoBoffset: .027, | ||
27 | deltaYmin: .0005, | ||
28 | loClip: .0001, | ||
29 | |||
30 | mFactor: 1.9468554433171, | ||
31 | mOffsetIn: .0387393816571401, | ||
32 | mExpAdj: .283343396420869, | ||
33 | mOffsetOut: .312865795870758, | ||
34 | ); | ||
35 | |||
36 | @function apca_sRGB_to_Y($color) { | ||
37 | $rgb: color.to-space($color, rgb); | ||
38 | |||
39 | @return map.get($SA98G, sRco) * math.pow(math.div(color.channel($rgb, 'red'), 255), map.get($SA98G, mainTRC)) + | ||
40 | map.get($SA98G, sGco) * math.pow(math.div(color.channel($rgb, 'green'), 255), map.get($SA98G, mainTRC)) + | ||
41 | map.get($SA98G, sBco) * math.pow(math.div(color.channel($rgb, 'blue'), 255), map.get($SA98G, mainTRC)); | ||
42 | } | ||
43 | |||
44 | @function apca_Y_to_sRGB($y) { | ||
45 | $c: math.round(math.pow($y, math.div(1, map.get($SA98G, mainTRC))) * 255); | ||
46 | @return rgb($c, $c, $c); | ||
47 | } | ||
48 | |||
49 | @function apcaContrast($txtY, $bgY) { | ||
50 | /* stylelint-disable-next-line @stylistic/number-no-trailing-zeros */ | ||
51 | $icp: .0 1.1; | ||
52 | |||
53 | @if math.min($txtY, $bgY) < list.nth($icp, 1) or math.max($txtY, $bgY) > list.nth($icp, 2) { | ||
54 | @return 0; | ||
55 | } | ||
56 | |||
57 | @if $txtY <= map.get($SA98G, blkThrs) { | ||
58 | $txtY: $txtY + math.pow(map.get($SA98G, blkThrs) - $txtY, map.get($SA98G, blkClmp)); | ||
59 | } | ||
60 | @if $bgY <= map.get($SA98G, blkThrs) { | ||
61 | $bgY: $bgY + math.pow(map.get($SA98G, blkThrs) - $bgY, map.get($SA98G, blkClmp)); | ||
62 | } | ||
63 | |||
64 | @if math.abs($bgY - $txtY) < map.get($SA98G, deltaYmin) { | ||
65 | @return 0; | ||
66 | } | ||
67 | |||
68 | $outputContrast: 0; | ||
69 | |||
70 | @if $bgY > $txtY { | ||
71 | $SAPC: map.get($SA98G, scaleBoW) * (math.pow($bgY, map.get($SA98G, normBG)) - math.pow($txtY, map.get($SA98G, normTXT))); | ||
72 | |||
73 | @if $SAPC >= map.get($SA98G, loClip) { | ||
74 | $outputContrast: $SAPC - map.get($SA98G, loBoWoffset); | ||
75 | } | ||
76 | } @else { | ||
77 | $SAPC: map.get($SA98G, scaleWoB) * (math.pow($bgY, map.get($SA98G, revBG)) - math.pow($txtY, map.get($SA98G, revTXT))); | ||
78 | |||
79 | @if $SAPC <= -1 * map.get($SA98G, loClip) { | ||
80 | $outputContrast: $SAPC + map.get($SA98G, loWoBoffset); | ||
81 | } | ||
82 | } | ||
83 | |||
84 | @return $outputContrast * 100; | ||
85 | } | ||
86 | |||
87 | @function apcaReverse($contrast, $knownY, $knownType: 'bg') { | ||
88 | $unknownY: $knownY; | ||
89 | |||
90 | $knownExp: 0; | ||
91 | $unknownExp: 0; | ||
92 | |||
93 | $scale: map.get($SA98G, if($contrast > 0, scaleBoW, scaleWoB)); | ||
94 | $offset: map.get($SA98G, if($contrast > 0, loBoWoffset, loWoBoffset)); | ||
95 | |||
96 | $contrast: math.div($contrast * .01 + $offset, $scale); | ||
97 | |||
98 | @if $knownY <= map.get($SA98G, blkThrs) { | ||
99 | $knownY: $knownY + math.pow(map.get($SA98G, blkThrs) - $knownY, map.get($SA98G, blkClmp)); | ||
100 | } | ||
101 | |||
102 | @if $knownType == 'bg' { | ||
103 | $knownExp: map.get($SA98G, if($contrast > 0, normBG, revBG)); | ||
104 | $unknownExp: map.get($SA98G, if($contrast > 0, normTXT, revTXT)); | ||
105 | $unknownY: math.pow(math.pow($knownY, $knownExp) - $contrast, math.div(1, $unknownExp)); | ||
106 | } @else { | ||
107 | $knownExp: map.get($SA98G, if($contrast > 0, normTXT, revTXT)); | ||
108 | $unknownExp: map.get($SA98G, if($contrast > 0, normBG, revBG)); | ||
109 | $unknownY: math.pow($contrast + math.pow($knownY, $knownExp), math.div(1, $unknownExp)); | ||
110 | } | ||
111 | |||
112 | @if '#{$unknownY}' == '#{math.sqrt(-1)}' { | ||
113 | @return false; | ||
114 | } | ||
115 | |||
116 | @if $unknownY > 1.06 or $unknownY < 0 { | ||
117 | @return false; | ||
118 | } | ||
119 | |||
120 | @if $unknownY <= map.get($SA98G, blkThrs) { | ||
121 | $unknownY: math.pow(($unknownY + map.get($SA98G, mOffsetIn)) * map.get($SA98G, mFactor), math.div(map.get($SA98G, mExpAdj), map.get($SA98G, blkClmp))) * math.div(1, map.get($SA98G, mFactor)) - map.get($SA98G, mOffsetOut); | ||
122 | } | ||
123 | |||
124 | $unknownY: math.max(math.min($unknownY, 1), 0); | ||
125 | |||
126 | @return $unknownY; | ||
127 | } | ||
diff --git a/src/functions/colors/_index.scss b/src/functions/colors/_index.scss deleted file mode 100644 index 9dad0f9..0000000 --- a/src/functions/colors/_index.scss +++ /dev/null | |||
@@ -1 +0,0 @@ | |||
1 | @forward 'apca'; | ||