/**
* @param $sourceImage
* @param $targetImage
* @param $width
* @param $height
* @param bool $crop
* @return bool
*/
public static function resize($sourceImage, $targetImage, $width, $height, $crop = false)
{
if (!ImageResizer::isImage($sourceImage)) {
return false;
}
//
$size = getimagesize($sourceImage);
//
$format = strtolower(substr($size['mime'], strpos($size['mime'], '/') + 1));
$icfunc = "imagecreatefrom" . $format;
if (!function_exists($icfunc)) {
return false;
}
$isrc = $icfunc($sourceImage);
if ($width == null && $height == null) {
return false;
} else {
if ($width != null && $height == null) {
$x_ratio = $width / $size[0];
$y_ratio = $x_ratio;
$height = $height * $y_ratio;
} else {
if ($width == null && $height != null) {
$y_ratio = $height / $size[1];
$x_ratio = $y_ratio;
$width = $height * $x_ratio;
} else {
if ($width != null && $height != null) {
$x_ratio = $width / $size[0];
$y_ratio = $height / $size[1];
}
}
}
}
//
if ($x_ratio < 1.0 || $y_ratio < 1.0) {
if ($crop) {
$ratiomax = max($x_ratio, $y_ratio);
$src_left = floor(($size[0] - $width / $ratiomax) / 2);
$src_top = floor(($size[1] - $height / $ratiomax) / 2);
$idest = imagecreatetruecolor($width, $height);
imagecopyresampled($idest, $isrc, 0, 0, $src_left, $src_top, $width, $height, $width / $ratiomax, $height / $ratiomax);
} else {
$ratio = min($x_ratio, $y_ratio);
$new_width = floor($size[0] * $ratio);
$new_height = floor($size[1] * $ratio);
$idest = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($idest, $isrc, 0, 0, 0, 0, $new_width, $new_height, $size[0], $size[1]);
}
} else {
$new_width = $size[0];
$new_height = $size[1];
$idest = imagecreatetruecolor($new_width, $new_height);
imagecopy($idest, $isrc, 0, 0, 0, 0, $new_width, $new_height);
}
//
imageinterlace($idest, true);
// create destination image
imagejpeg($idest, $targetImage, 80);
// set access rights
chmod($targetImage, 0664);
// clean up
imagedestroy($isrc);
imagedestroy($idest);
return true;
}
