function resizeImage($imageurl, $width, $height, $mode = 'cover', $resizeremote = false)
{
$originalimageurl = $imageurl;
if ($width > 0 && $height > 0 && function_exists('exif_imagetype') && function_exists('imagecreatefrompng')) {
$extra = array();
if (substr($imageurl, 0, 2) == '//') {
$imageurl = parse_url(NextendUri::getBaseuri(), PHP_URL_SCHEME) . ':' . $imageurl;
}
$imageurl = NextendUri::relativetoabsolute($imageurl);
$imagepath = NextendFilesystem::absoluteURLToPath($imageurl);
if ($imagepath == $imageurl) {
if (!$resizeremote) {
return $originalimageurl;
}
$imagepath = parse_url($imageurl, PHP_URL_PATH);
} else {
$extra[] = @filemtime($imagepath);
$imageurl = $imagepath;
}
$extension = strtolower(pathinfo($imagepath, PATHINFO_EXTENSION));
$filetype = '';
if ($extension == 'png') {
$filetype = 'png';
} else {
if ($extension == 'jpg' || $extension == 'jpeg') {
$filetype = 'jpg';
}
}
if ($filetype != '') {
$hash = $this->createHashFromArray(array_merge(func_get_args(), $this->backgrouncolor, $extra));
$cachefile = $this->_folder . $hash . '.' . $filetype;
if (!NextendFilesystem::existsFile($cachefile)) {
$imagetype = @exif_imagetype($imageurl);
if ($imagetype) {
if ($imagetype == IMAGETYPE_PNG) {
$filetype = 'png';
} else {
if ($imagetype == IMAGETYPE_JPEG) {
$filetype = 'jpg';
} else {
$filetype = '';
}
}
if ($filetype) {
$img = null;
$rotated = null;
if ($filetype == 'png') {
$img = @imagecreatefrompng($imageurl);
} else {
if ($filetype == 'jpg') {
$img = @imagecreatefromjpeg($imageurl);
if (function_exists("exif_read_data")) {
$exif = exif_read_data($imageurl);
if ($exif && !empty($exif['Orientation'])) {
switch ($exif['Orientation']) {
case 3:
$rotated = imagerotate($img, 180, 0);
break;
case 6:
$rotated = imagerotate($img, -90, 0);
break;
case 8:
$rotated = imagerotate($img, 90, 0);
break;
}
}
if ($rotated) {
imagedestroy($img);
$img = $rotated;
}
}
}
}
if ($img) {
$owidth = imagesx($img);
$oheight = imagesy($img);
if ($rotated || $owidth != $width || $oheight != $height) {
$image = imagecreatetruecolor($width, $height);
if ($filetype == 'png') {
imagesavealpha($image, true);
imagealphablending($image, false);
$white = imagecolorallocatealpha($image, 255, 255, 255, 127);
imagefilledrectangle($image, 0, 0, $width, $height, $white);
} else {
if ($filetype == 'jpg') {
$bg = imagecolorallocate($image, $this->backgrouncolor[0], $this->backgrouncolor[1], $this->backgrouncolor[2]);
imagefilledrectangle($image, 0, 0, $width, $height, $bg);
}
}
$dst_x = 0;
$dst_y = 0;
$src_x = 0;
$src_y = 0;
$dst_w = $width;
$dst_h = $height;
$src_w = $owidth;
$src_h = $oheight;
$horizontalRatio = $width / $owidth;
$verticalRatio = $height / $oheight;
if ($mode == 'cover') {
if ($horizontalRatio > $verticalRatio) {
$new_h = $horizontalRatio * $oheight;
$dst_y = ($height - $new_h) / 2;
$dst_h = $new_h;
} else {
$new_w = $verticalRatio * $owidth;
$dst_x = ($width - $new_w) / 2;
$dst_w = $new_w;
}
} else {
if ($mode == 'contain') {
if ($horizontalRatio < $verticalRatio) {
$new_h = $horizontalRatio * $oheight;
$dst_y = ($height - $new_h) / 2;
$dst_h = $new_h;
} else {
$new_w = $verticalRatio * $owidth;
$dst_x = ($width - $new_w) / 2;
$dst_w = $new_w;
}
}
}
imagecopyresampled($image, $img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
imagedestroy($img);
if ($filetype == 'png') {
imagepng($image, $cachefile);
} else {
if ($filetype == 'jpg') {
imagejpeg($image, $cachefile, 100);
}
}
imagedestroy($image);
return NextendFilesystem::pathToAbsoluteURL($cachefile);
} else {
imagedestroy($img);
}
}
}
}
} else {
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}
}
}
return $originalimageurl;
}
