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flash 2018-05-16 23:21:30 +02:00
parent fc18634e09
commit 99b1c644d6
1 changed files with 0 additions and 112 deletions
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112
src/Colour.php
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@ -1,112 +0,0 @@
<?php
define('MSZ_COLOUR_INHERIT', 0x40000000);
function colour_create(): int
{
return 0;
}
function colour_none(): int
{
return MSZ_COLOUR_INHERIT;
}
function colour_set_inherit(int &$colour): void
{
$colour |= MSZ_COLOUR_INHERIT;
}
function colour_unset_inherit(int &$colour): void
{
$colour &= ~MSZ_COLOUR_INHERIT;
}
function colour_get_inherit(int $colour): bool
{
return ($colour & MSZ_COLOUR_INHERIT) > 0;
}
function colour_get_red(int $colour): int
{
return ($colour >> 16) & 0xFF;
}
function colour_set_red(int &$colour, int $red): void
{
$red = $red & 0xFF;
$colour &= ~0xFF0000;
$colour |= $red << 16;
}
function colour_get_green(int $colour): int
{
return ($colour >> 8) & 0xFF;
}
function colour_set_green(int &$colour, int $green): void
{
$green = $green & 0xFF;
$colour &= ~0xFF00;
$colour |= $green << 8;
}
function colour_get_blue(int $colour): int
{
return $colour & 0xFF;
}
function colour_set_blue(int &$colour, int $blue): void
{
$blue = $blue & 0xFF;
$colour &= ~0xFF;
$colour |= $blue;
}
function colour_get_hex(int $colour, string $format = '#%s'): string
{
return sprintf(
$format,
dechex_pad($colour & 0xFFFFFF, 6)
);
}
function colour_get_css(int $colour): string
{
if (colour_get_inherit($colour)) {
return 'inherit';
}
return colour_get_hex($colour);
}
function colour_from_rgb(int &$colour, int $red, int $green, int $blue): bool
{
colour_set_red($colour, $red);
colour_set_green($colour, $green);
colour_set_blue($colour, $blue);
return true;
}
function colour_from_hex(int &$colour, string $hex): bool
{
if ($hex[0] === '#') {
$hex = substr($hex, 1);
}
$length = strlen($hex);
if ($length === 3) {
$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
} elseif ($length !== 6) {
return false;
}
colour_from_rgb(
$colour,
hexdec(substr($hex, 0, 2)),
hexdec(substr($hex, 2, 2)),
hexdec(substr($hex, 4, 2))
);
return true;
}