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* Introduce new batch script to interpolate colors and extract color scheme information from CSS. * Update scheme colors for pink-to-red, orange-to-blue using oklch interpolation. * Scorechart_Page can generate charts in any scheme. * Scorechart_Page can print larger images (`scale` parameter).
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| <?php | ||
| // colorschemes.php -- HotCRP script for analyzing color schemes | ||
| // Copyright (c) 2006-2023 Eddie Kohler; see LICENSE. | ||
|
|
||
| if (realpath($_SERVER["PHP_SELF"]) === __FILE__) { | ||
| require_once(dirname(__DIR__) . "/src/init.php"); | ||
| exit(ColorSchemes_Batch::make_args($argv)->run()); | ||
| } | ||
|
|
||
| class ColorSchemes_Batch { | ||
| /** @var array<string,array{0|1|2,int,?string}> */ | ||
| public $schemes = []; | ||
| /** @var array<string,list<string>> */ | ||
| public $colors = []; | ||
| /** @var ?list<string> */ | ||
| public $gradient; | ||
| /** @var bool */ | ||
| public $php = false; | ||
|
|
||
| function __construct($arg) { | ||
| if (isset($arg["gradient"])) { | ||
| $this->gradient = $arg["gradient"]; | ||
| } else if (isset($arg["php"])) { | ||
| $this->php = true; | ||
| } | ||
| foreach (Discrete_ReviewField::$scheme_info as $name => $sch) { | ||
| $this->schemes[$name] = $sch; | ||
| if ($sch[0] !== 1) { | ||
| $this->colors[$name] = array_fill(0, $sch[1], null); | ||
| } | ||
| } | ||
| $this->colors["none"][0] = "222222"; | ||
| } | ||
|
|
||
| /** @param string $s | ||
| * @return OklchColor */ | ||
| function from_hashcolor($s) { | ||
| $p = strlen($s) === 7 ? 1 : 0; | ||
| return OklchColor::from_rgb(intval(substr($s, $p, 2), 16), | ||
| intval(substr($s, $p + 2, 2), 16), | ||
| intval(substr($s, $p + 4, 2), 16)); | ||
| } | ||
|
|
||
| /** @return int */ | ||
| function run_gradient() { | ||
| $mode = $this->gradient[3] ?? "shorter"; | ||
| if (count($this->gradient) < 3 | ||
| || count($this->gradient) > 4 | ||
| || !ctype_digit($this->gradient[0]) | ||
| || ($n = intval($this->gradient[0])) < 2 | ||
| || !preg_match('/\A#?([0-9a-fA-F]{6})\z/', $this->gradient[1], $m1) | ||
| || !preg_match('/\A#?([0-9a-fA-F]{6})\z/', $this->gradient[2], $m2) | ||
| || !in_array($mode, ["shorter", "longer", "increasing", "decreasing"])) { | ||
| throw new CommandLineException("`--gradient` expects NSTOPS COLOR1 COLOR2 [longer]"); | ||
| } | ||
| $c1 = self::from_hashcolor($m1[1]); | ||
| $c2 = self::from_hashcolor($m2[1]); | ||
| if (is_nan($c1->okh) && is_nan($c2->okh)) { | ||
| $c1->okh = $c2->okh = 0; | ||
| } else if (is_nan($c1->okh)) { | ||
| $c1->okh = $c2->okh; | ||
| } else if (is_nan($c2->okh)) { | ||
| $c2->okh = $c1->okh; | ||
| } | ||
| $hi = HclColor::hue_interpolate($c1->okh, $c2->okh, $mode); | ||
| for ($i = 0; $i < $n; ++$i) { | ||
| if ($i === 0) { | ||
| $c = $c1; | ||
| } else if ($i === $n - 1) { | ||
| $c = $c2; | ||
| } else { | ||
| $c = $c1->interpolate($i / ($n - 1), $c2, $hi); | ||
| } | ||
| fwrite(STDOUT, strtolower($c->hashcolor()) . "\n"); | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| private function write_php($j) { | ||
| $col = []; | ||
| $cat = []; | ||
| $rev = []; | ||
| foreach ($this->schemes as $name => $sch) { | ||
| if ($sch[0] === 2) { | ||
| $cat[] = "\"{$name}\" => true"; | ||
| } | ||
| if ($sch[0] !== 1) { | ||
| $col[] = "\"{$name}\" => \"{$j[$name]->colors}\""; | ||
| } | ||
| if ($sch[2]) { | ||
| $rev[] = "\"{$name}\" => \"{$sch[2]}\""; | ||
| } | ||
| } | ||
| fwrite(STDOUT, " public static \$scheme_colors = [" . join(", ", $col) . "];\n" | ||
| . " public static \$scheme_categorical = [" . join(", ", $cat) . "];\n" | ||
| . " public static \$scheme_reverse = [" . join(", ", $rev) . "];\n"); | ||
| } | ||
|
|
||
| /** @return int */ | ||
| function run() { | ||
| if (isset($this->gradient)) { | ||
| return $this->run_gradient(); | ||
| } | ||
| $css = file_get_contents(SiteLoader::$root . "/stylesheets/style.css"); | ||
| preg_match_all('/^\.sv-?([a-z]*)(\d+)\s*\{\s*color\s*:\s*#([0-9a-fA-F]{6})\s*;(?:\s|\/\*.*?\*\/)*\}/m', $css, $ms, PREG_SET_ORDER); | ||
| foreach ($ms as $mx) { | ||
| $name = $mx[1] === "" ? "sv" : $mx[1]; | ||
| $idx = intval($mx[2]); | ||
| $color = strtolower($mx[3]); | ||
| if (!isset($this->schemes[$name]) | ||
| || $this->schemes[$name][0] === 1 | ||
| || $idx <= 0 | ||
| || $idx > $this->schemes[$name][1] | ||
| || isset($this->colors[$name][$idx - 1])) { | ||
| fwrite(STDERR, "Unexpected color {$mx[0]}\n"); | ||
| } else { | ||
| $this->colors[$name][$idx - 1] = $color; | ||
| } | ||
| } | ||
| $j = []; | ||
| foreach ($this->schemes as $name => $sch) { | ||
| if ($sch[0] === 1) { | ||
| continue; | ||
| } | ||
| if (!isset($this->colors[$name]) | ||
| || count(array_filter($this->colors[$name])) !== $sch[1]) { | ||
| fwrite(STDERR, "Some colors not set for scheme {$name}\n"); | ||
| } else { | ||
| $j[$name] = $jx = (object) []; | ||
| if ($sch[0] === 2) { | ||
| $jx->categorical = true; | ||
| } | ||
| $jx->colors = join("", $this->colors[$name]); | ||
| } | ||
| } | ||
| if ($this->php) { | ||
| $this->write_php($j); | ||
| } else { | ||
| foreach ($this->schemes as $name => $sch) { | ||
| if ($sch[0] === 1 && isset($j[$sch[2]])) { | ||
| $j[$sch[2]]->reverse = $name; | ||
| } | ||
| } | ||
| fwrite(STDOUT, json_encode($j, JSON_PRETTY_PRINT) . "\n"); | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| /** @return ColorSchemes_Batch */ | ||
| static function make_args($argv) { | ||
| $arg = (new Getopt)->long( | ||
| "help,h !", | ||
| "php", | ||
| "gradient[]+,g[]+ Compute gradient" | ||
| )->description("Analyze HotCRP CSS color schemes. | ||
| Usage: php batch/colorschemes.php") | ||
| ->helpopt("help") | ||
| ->maxarg(0) | ||
| ->parse($argv); | ||
|
|
||
| return new ColorSchemes_Batch($arg); | ||
| } | ||
| } |
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