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<?php
namespace PhpOffice\PhpSpreadsheet\Writer\Xls\Style;
use PhpOffice\PhpSpreadsheet\Style\Color;
class ColorMap
{
/**
* @var array<string, int>
*/
private static $colorMap = [
'#000000' => 0x08,
'#FFFFFF' => 0x09,
'#FF0000' => 0x0A,
'#00FF00' => 0x0B,
'#0000FF' => 0x0C,
'#FFFF00' => 0x0D,
'#FF00FF' => 0x0E,
'#00FFFF' => 0x0F,
'#800000' => 0x10,
'#008000' => 0x11,
'#000080' => 0x12,
'#808000' => 0x13,
'#800080' => 0x14,
'#008080' => 0x15,
'#C0C0C0' => 0x16,
'#808080' => 0x17,
'#9999FF' => 0x18,
'#993366' => 0x19,
'#FFFFCC' => 0x1A,
'#CCFFFF' => 0x1B,
'#660066' => 0x1C,
'#FF8080' => 0x1D,
'#0066CC' => 0x1E,
'#CCCCFF' => 0x1F,
// '#000080' => 0x20,
// '#FF00FF' => 0x21,
// '#FFFF00' => 0x22,
// '#00FFFF' => 0x23,
// '#800080' => 0x24,
// '#800000' => 0x25,
// '#008080' => 0x26,
// '#0000FF' => 0x27,
'#00CCFF' => 0x28,
// '#CCFFFF' => 0x29,
'#CCFFCC' => 0x2A,
'#FFFF99' => 0x2B,
'#99CCFF' => 0x2C,
'#FF99CC' => 0x2D,
'#CC99FF' => 0x2E,
'#FFCC99' => 0x2F,
'#3366FF' => 0x30,
'#33CCCC' => 0x31,
'#99CC00' => 0x32,
'#FFCC00' => 0x33,
'#FF9900' => 0x34,
'#FF6600' => 0x35,
'#666699' => 0x36,
'#969696' => 0x37,
'#003366' => 0x38,
'#339966' => 0x39,
'#003300' => 0x3A,
'#333300' => 0x3B,
'#993300' => 0x3C,
// '#993366' => 0x3D,
'#333399' => 0x3E,
'#333333' => 0x3F,
];
public static function lookup(Color $color, int $defaultIndex = 0x00): int
{
$colorRgb = $color->getRGB();
if (is_string($colorRgb) && array_key_exists("#{$colorRgb}", self::$colorMap)) {
return self::$colorMap["#{$colorRgb}"];
}
// TODO Try and map RGB value to nearest colour within the define pallette
// $red = Color::getRed($colorRgb, false);
// $green = Color::getGreen($colorRgb, false);
// $blue = Color::getBlue($colorRgb, false);
// $paletteSpace = 3;
// $newColor = ($red * $paletteSpace / 256) * ($paletteSpace * $paletteSpace) +
// ($green * $paletteSpace / 256) * $paletteSpace +
// ($blue * $paletteSpace / 256);
return $defaultIndex;
}
}