/**
* Calculates the new dimensions for a downsampled image.
*
* @since 2.0.0
* @deprecated 3.0.0
* @deprecated Use nxt_constrain_dimensions()
*
* @param int $width Current width of the image
* @param int $height Current height of the image
* @param int $wmax Maximum wanted width
* @param int $hmax Maximum wanted height
* @return mixed Array(height,width) of shrunk dimensions.
*/
function nxt_shrink_dimensions($width, $height, $wmax = 128, $hmax = 96)
{
_deprecated_function(__FUNCTION__, '3.0', 'nxt_constrain_dimensions()');
return nxt_constrain_dimensions($width, $height, $wmax, $hmax);
}
/**
* Based on a supplied width/height example, return the biggest possible dimensions based on the max width/height.
*
* @since 2.9.0
* @uses nxt_constrain_dimensions() This function passes the widths and the heights.
*
* @param int $example_width The width of an example embed.
* @param int $example_height The height of an example embed.
* @param int $max_width The maximum allowed width.
* @param int $max_height The maximum allowed height.
* @return array The maximum possible width and height based on the example ratio.
*/
function nxt_expand_dimensions($example_width, $example_height, $max_width, $max_height)
{
$example_width = (int) $example_width;
$example_height = (int) $example_height;
$max_width = (int) $max_width;
$max_height = (int) $max_height;
return nxt_constrain_dimensions($example_width * 1000000, $example_height * 1000000, $max_width, $max_height);
}
function vt_resize($attach_id = null, $img_url = null, $width, $height, $crop = false)
{
// this is an attachment, so we have the ID
if ($attach_id) {
$image_src = nxt_get_attachment_image_src($attach_id, 'full');
$file_path = get_attached_file($attach_id);
// this is not an attachment, let's use the image url
} else {
if ($img_url) {
$file_path = parse_url($img_url);
$file_path = $_SERVER['DOCUMENT_ROOT'] . $file_path['path'];
//$file_path = ltrim( $file_path['path'], '/' );
//$file_path = rtrim( ABSPATH, '/' ).$file_path['path'];
$orig_size = getimagesize($file_path);
$image_src[0] = $img_url;
$image_src[1] = $orig_size[0];
$image_src[2] = $orig_size[1];
}
}
$file_info = pathinfo($file_path);
// check if file exists
$base_file = $file_info['dirname'] . '/' . $file_info['filename'] . '.' . $file_info['extension'];
if (!file_exists($base_file)) {
return;
}
$extension = '.' . $file_info['extension'];
// the image path without the extension
$no_ext_path = $file_info['dirname'] . '/' . $file_info['filename'];
$cropped_img_path = $no_ext_path . '-' . $width . 'x' . $height . $extension;
// checking if the file size is larger than the target size
// if it is smaller or the same size, stop right here and return
if ($image_src[1] > $width) {
// the file is larger, check if the resized version already exists (for $crop = true but will also work for $crop = false if the sizes match)
if (file_exists($cropped_img_path)) {
$cropped_img_url = str_replace(basename($image_src[0]), basename($cropped_img_path), $image_src[0]);
$vt_image = array('url' => $cropped_img_url, 'width' => $width, 'height' => $height);
return $vt_image;
}
// $crop = false or no height set
if ($crop == false or !$height) {
// calculate the size proportionaly
$proportional_size = nxt_constrain_dimensions($image_src[1], $image_src[2], $width, $height);
$resized_img_path = $no_ext_path . '-' . $proportional_size[0] . 'x' . $proportional_size[1] . $extension;
// checking if the file already exists
if (file_exists($resized_img_path)) {
$resized_img_url = str_replace(basename($image_src[0]), basename($resized_img_path), $image_src[0]);
$vt_image = array('url' => $resized_img_url, 'width' => $proportional_size[0], 'height' => $proportional_size[1]);
return $vt_image;
}
}
// check if image width is smaller than set width
$img_size = getimagesize($file_path);
if ($img_size[0] <= $width) {
$width = $img_size[0];
}
// Check if GD Library installed
if (!function_exists('imagecreatetruecolor')) {
echo 'GD Library Error: imagecreatetruecolor does not exist - please contact your webhost and ask them to install the GD library';
return;
}
// no cache files - let's finally resize it
$new_img_path = image_resize($file_path, $width, $height, $crop);
$new_img_size = getimagesize($new_img_path);
$new_img = str_replace(basename($image_src[0]), basename($new_img_path), $image_src[0]);
// resized output
$vt_image = array('url' => $new_img, 'width' => $new_img_size[0], 'height' => $new_img_size[1]);
return $vt_image;
}
// default output - without resizing
$vt_image = array('url' => $image_src[0], 'width' => $width, 'height' => $height);
return $vt_image;
}
/**
* Calculated the new dimensions for a downsampled image.
*
* @since 2.0.0
* @see nxt_constrain_dimensions()
*
* @param int $width Current width of the image
* @param int $height Current height of the image
* @return mixed Array(height,width) of shrunk dimensions.
*/
function get_udims($width, $height)
{
return nxt_constrain_dimensions($width, $height, 128, 96);
}
function nxt_save_image($post_id)
{
$return = new stdClass();
$success = $delete = $scaled = $nocrop = false;
$post = get_post($post_id);
@ini_set('memory_limit', apply_filters('admin_memory_limit', nxt_MAX_MEMORY_LIMIT));
$img = load_image_to_edit($post_id, $post->post_mime_type);
if (!is_resource($img)) {
$return->error = esc_js(__('Unable to create new image.'));
return $return;
}
$fwidth = !empty($_REQUEST['fwidth']) ? intval($_REQUEST['fwidth']) : 0;
$fheight = !empty($_REQUEST['fheight']) ? intval($_REQUEST['fheight']) : 0;
$target = !empty($_REQUEST['target']) ? preg_replace('/[^a-z0-9_-]+/i', '', $_REQUEST['target']) : '';
$scale = !empty($_REQUEST['do']) && 'scale' == $_REQUEST['do'];
if ($scale && $fwidth > 0 && $fheight > 0) {
$sX = imagesx($img);
$sY = imagesy($img);
// check if it has roughly the same w / h ratio
$diff = round($sX / $sY, 2) - round($fwidth / $fheight, 2);
if (-0.1 < $diff && $diff < 0.1) {
// scale the full size image
$dst = nxt_imagecreatetruecolor($fwidth, $fheight);
if (imagecopyresampled($dst, $img, 0, 0, 0, 0, $fwidth, $fheight, $sX, $sY)) {
imagedestroy($img);
$img = $dst;
$scaled = true;
}
}
if (!$scaled) {
$return->error = esc_js(__('Error while saving the scaled image. Please reload the page and try again.'));
return $return;
}
} elseif (!empty($_REQUEST['history'])) {
$changes = json_decode(stripslashes($_REQUEST['history']));
if ($changes) {
$img = image_edit_apply_changes($img, $changes);
}
} else {
$return->error = esc_js(__('Nothing to save, the image has not changed.'));
return $return;
}
$meta = nxt_get_attachment_metadata($post_id);
$backup_sizes = get_post_meta($post->ID, '_nxt_attachment_backup_sizes', true);
if (!is_array($meta)) {
$return->error = esc_js(__('Image data does not exist. Please re-upload the image.'));
return $return;
}
if (!is_array($backup_sizes)) {
$backup_sizes = array();
}
// generate new filename
$path = get_attached_file($post_id);
$path_parts = pathinfo($path);
$filename = $path_parts['filename'];
$suffix = time() . rand(100, 999);
if (defined('IMAGE_EDIT_OVERWRITE') && IMAGE_EDIT_OVERWRITE && isset($backup_sizes['full-orig']) && $backup_sizes['full-orig']['file'] != $path_parts['basename']) {
if ('thumbnail' == $target) {
$new_path = "{$path_parts['dirname']}/{$filename}-temp.{$path_parts['extension']}";
} else {
$new_path = $path;
}
} else {
while (true) {
$filename = preg_replace('/-e([0-9]+)$/', '', $filename);
$filename .= "-e{$suffix}";
$new_filename = "{$filename}.{$path_parts['extension']}";
$new_path = "{$path_parts['dirname']}/{$new_filename}";
if (file_exists($new_path)) {
$suffix++;
} else {
break;
}
}
}
// save the full-size file, also needed to create sub-sizes
if (!nxt_save_image_file($new_path, $img, $post->post_mime_type, $post_id)) {
$return->error = esc_js(__('Unable to save the image.'));
return $return;
}
if ('nothumb' == $target || 'all' == $target || 'full' == $target || $scaled) {
$tag = false;
if (isset($backup_sizes['full-orig'])) {
if ((!defined('IMAGE_EDIT_OVERWRITE') || !IMAGE_EDIT_OVERWRITE) && $backup_sizes['full-orig']['file'] != $path_parts['basename']) {
$tag = "full-{$suffix}";
}
} else {
$tag = 'full-orig';
}
if ($tag) {
$backup_sizes[$tag] = array('width' => $meta['width'], 'height' => $meta['height'], 'file' => $path_parts['basename']);
}
$success = update_attached_file($post_id, $new_path);
$meta['file'] = _nxt_relative_upload_path($new_path);
$meta['width'] = imagesx($img);
$meta['height'] = imagesy($img);
list($uwidth, $uheight) = nxt_constrain_dimensions($meta['width'], $meta['height'], 128, 96);
$meta['hwstring_small'] = "height='{$uheight}' width='{$uwidth}'";
if ($success && ('nothumb' == $target || 'all' == $target)) {
$sizes = get_intermediate_image_sizes();
if ('nothumb' == $target) {
$sizes = array_diff($sizes, array('thumbnail'));
}
}
$return->fw = $meta['width'];
$return->fh = $meta['height'];
} elseif ('thumbnail' == $target) {
$sizes = array('thumbnail');
$success = $delete = $nocrop = true;
}
if (isset($sizes)) {
foreach ($sizes as $size) {
$tag = false;
if (isset($meta['sizes'][$size])) {
if (isset($backup_sizes["{$size}-orig"])) {
if ((!defined('IMAGE_EDIT_OVERWRITE') || !IMAGE_EDIT_OVERWRITE) && $backup_sizes["{$size}-orig"]['file'] != $meta['sizes'][$size]['file']) {
$tag = "{$size}-{$suffix}";
}
} else {
$tag = "{$size}-orig";
}
if ($tag) {
$backup_sizes[$tag] = $meta['sizes'][$size];
}
}
$crop = $nocrop ? false : get_option("{$size}_crop");
$resized = image_make_intermediate_size($new_path, get_option("{$size}_size_w"), get_option("{$size}_size_h"), $crop);
if ($resized) {
$meta['sizes'][$size] = $resized;
} else {
unset($meta['sizes'][$size]);
}
}
}
if ($success) {
nxt_update_attachment_metadata($post_id, $meta);
update_post_meta($post_id, '_nxt_attachment_backup_sizes', $backup_sizes);
if ($target == 'thumbnail' || $target == 'all' || $target == 'full') {
$file_url = nxt_get_attachment_url($post_id);
if ($thumb = $meta['sizes']['thumbnail']) {
$return->thumbnail = path_join(dirname($file_url), $thumb['file']);
} else {
$return->thumbnail = "{$file_url}?w=128&h=128";
}
}
} else {
$delete = true;
}
if ($delete) {
$delpath = apply_filters('nxt_delete_file', $new_path);
@unlink($delpath);
}
imagedestroy($img);
$return->msg = esc_js(__('Image saved'));
return $return;
}
