colorclosest.phpt

来自「PHP v6.0 For Linux 运行环境：Win9X/ WinME/ Wi」· PHPT 代码 · 共 128 行

--TEST--
imageclosest
--SKIPIF--
<?php
        if (!function_exists('imagecolorclosest')) die("skip gd extension not available\n");
?>
--FILE--
<?php

$im = imagecreatetruecolor(5,5);
$c = imagecolorclosest($im, 255,0,255);
printf("%X\n", $c);
imagedestroy($im);

$im = imagecreate(5,5);
$c = imagecolorclosest($im, 255,0,255);
print_r(imagecolorsforindex($im, $c));
imagedestroy($im);

$im = imagecreate(5,5);
imagecolorallocate($im, 255, 0, 255);
$c = imagecolorclosest($im, 255,0,255);
print_r(imagecolorsforindex($im, $c));
imagedestroy($im);

$im = imagecreate(5,5);
for ($i=0; $i<255; $i++) imagecolorresolve($im, $i,0,0);
$c = imagecolorclosest($im, 255,0,0);
print_r(imagecolorsforindex($im, $c));


$im = imagecreate(5,5);
for ($i=0; $i<256; $i++) {
	if ($i == 246) {
		imagecolorallocate($im, $i,10,10);
	} else {
		imagecolorallocate($im, $i,0,0);
	}
}
$c = imagecolorclosest($im, 255,10,10);
print_r(imagecolorsforindex($im, $c));

// with alpha
$im = imagecreatetruecolor(5,5);
$c = imagecolorclosestalpha($im, 255,0,255,100);
printf("%X\n", $c);
imagedestroy($im);

$im = imagecreate(5,5);
$c = imagecolorclosestalpha($im, 255,0,255,100);
print_r(imagecolorsforindex($im, $c));
imagedestroy($im);

$im = imagecreate(5,5);
imagecolorallocatealpha($im, 255, 0, 255, 1);
$c = imagecolorclosestalpha($im, 255,0,255,1);
print_r(imagecolorsforindex($im, $c));
imagedestroy($im);

$im = imagecreate(5,5);
for ($i=0; $i<255; $i++) imagecolorresolvealpha($im, $i,0,0,1);
$c = imagecolorclosestalpha($im, 255,0,0,1);
print_r(imagecolorsforindex($im, $c));


$im = imagecreate(5,5);
for ($i=0; $i<256; $i++) {
	if ($i == 246) {
		imagecolorallocatealpha($im, $i,10,10,1);
	} else {
		imagecolorallocatealpha($im, $i,0,0,100);
	}
}
$c = imagecolorclosestalpha($im, 255,10,10,1);
print_r(imagecolorsforindex($im, $c));


?>
--EXPECTF--
FF00FF

Warning: imagecolorsforindex(): Color index -1 out of range in %s on line %d
Array
(
    [red] => 255
    [green] => 0
    [blue] => 255
    [alpha] => 0
)
Array
(
    [red] => 254
    [green] => 0
    [blue] => 0
    [alpha] => 0
)
Array
(
    [red] => 246
    [green] => 10
    [blue] => 10
    [alpha] => 0
)
64FF00FF

Warning: imagecolorsforindex(): Color index -1 out of range in %s on line %d
Array
(
    [red] => 255
    [green] => 0
    [blue] => 255
    [alpha] => 1
)
Array
(
    [red] => 254
    [green] => 0
    [blue] => 0
    [alpha] => 1
)
Array
(
    [red] => 246
    [green] => 10
    [blue] => 10
    [alpha] => 1
)