/**
* Resize images dynamically using wp built in functions
*
* @param string $img_url
* @param int $width
* @param int $height
* @param bool $crop
* @return array
*/
function themify_do_img($img_url = null, $width, $height, $crop = false)
{
$src = esc_url($img_url);
$upload_dir = wp_upload_dir();
$base_url = $upload_dir['baseurl'];
// Check if the image is an attachment. If it's external return url, width and height.
if (substr($src, -strlen($base_url)) === $base_url) {
return array('url' => $src, 'width' => $width, 'height' => $height);
}
// Get post's attachment meta data to look for references to the requested image size
$attachment_id = themify_get_attachment_id_from_url($src, $base_url);
// If no relationship between a post and a image size was found, return url, width and height.
if (!$attachment_id) {
return array('url' => $src, 'width' => $width, 'height' => $height);
}
// Go through the attachment meta data sizes looking for an image size match.
$meta = wp_get_attachment_metadata($attachment_id);
if (is_array($meta) && isset($meta['sizes']) && is_array($meta['sizes'])) {
foreach ($meta['sizes'] as $key => $size) {
if ($size['width'] == $width && $size['height'] == $height) {
setlocale(LC_CTYPE, get_locale() . '.UTF-8');
return array('url' => str_replace(basename($src), $size['file'], $src), 'width' => $width, 'height' => $height);
}
}
}
// Requested image size doesn't exists, so let's create one
if (true == $crop) {
add_filter('image_resize_dimensions', 'themify_img_resize_dimensions', 10, 5);
}
$image = themify_make_image_size($attachment_id, $width, $height, $meta, $src);
if (true == $crop) {
remove_filter('image_resize_dimensions', 'themify_img_resize_dimensions', 10);
}
return $image;
}
/**
* Resize images dynamically using wp built in functions
*
* @param string $img_url
* @param int $width
* @param int $height
* @param bool $crop
* @return array
*/
function themify_do_img($img_url = null, $width, $height, $crop = false)
{
$img_url = esc_url($img_url);
$upload_dir = wp_upload_dir();
$base_url = $upload_dir['baseurl'];
// Check if the image is an attachment. If it's external return url, width and height.
if (substr($img_url, -strlen($base_url)) === $base_url) {
return array('url' => $img_url, 'width' => $width, 'height' => $height);
}
// Get post's attachment meta data to look for references to the requested image size
$attachment_id = themify_get_attachment_id_from_url($img_url, $base_url);
// If no relationship between a post and a image size was found, return url, width and height.
if (!$attachment_id) {
return array('url' => $img_url, 'width' => $width, 'height' => $height);
}
// Fetch attachment meta data. Up to this point we know the attachment ID is valid.
$meta = wp_get_attachment_metadata($attachment_id);
// Go through the attachment meta data sizes looking for an image size match.
if (is_array($meta) && isset($meta['sizes']) && is_array($meta['sizes'])) {
// Perform calculations when height = 0
if (is_null($height) || 0 === $height || '0' === $height) {
// If width and height or original image are available as metadata
if (isset($meta['width']) && isset($meta['height'])) {
// Divide width by original image aspect ratio to obtain projected height
// The floor function is used so it returns an int and metadata can be written
$height = floor($width / ($meta['width'] / $meta['height']));
} else {
$height = 0;
}
}
foreach ($meta['sizes'] as $key => $size) {
if ($size['width'] == $width && $size['height'] == $height) {
setlocale(LC_CTYPE, get_locale() . '.UTF-8');
return array('url' => str_replace(basename($img_url), $size['file'], $img_url), 'width' => $width, 'height' => $height, 'attachment_id' => $attachment_id);
}
}
} elseif (is_array($meta) && (!isset($meta['sizes']) || !is_array($meta['sizes']))) {
// If the meta is an array, but doesn't have the 'sizes' element or if it has it, it's not an array,
// return original image since there's something wrong with this attachment meta data: it exists,
// but its format is not correct.
return array('url' => $img_url, 'width' => $width, 'height' => $height, 'attachment_id' => $attachment_id);
}
// Requested image size doesn't exists, so let's create one
if (true == $crop) {
add_filter('image_resize_dimensions', 'themify_img_resize_dimensions', 10, 5);
}
// Patch meta because if we're here, there's a valid attachment ID for sure, but maybe the meta data is not ok.
if (!is_array($meta) && empty($meta)) {
$meta['sizes'] = array('large' => array());
}
// Generate image returning an array with image url, width and height. If image can't generated, original url, width and height are used.
$image = themify_make_image_size($attachment_id, $width, $height, $meta, $img_url);
if (true == $crop) {
remove_filter('image_resize_dimensions', 'themify_img_resize_dimensions', 10);
}
$image['attachment_id'] = $attachment_id;
return $image;
}
/**
* Returns the post image, either from Themify Custom Panel fields or from WordPress Featured Image.
* @param string $args Format string.
* @return string String with <img> tag and optional content prepended and/or appended
*/
function themify_get_image($args)
{
global $themify;
/**
* List of parameters
* @var array
*/
$args = wp_parse_args($args, array('id' => '', 'src' => '', 'class' => '', 'ignore' => '', 'w' => '', 'h' => '', 'before' => '', 'after' => '', 'alt' => '', 'crop' => true, 'setting' => '', 'field_name' => 'post_image,image,wp_thumb,feature_image', 'urlonly' => false, 'image_size' => '', 'image_meta' => false, 'f_image' => false));
/**
* Post ID for single, query or archive views.
* Page ID is stored separately in $themify->page_id.
* @var string
*/
$post_id = get_the_ID();
/**
* URL of the image to use
* @var string
*/
$img_url = '';
/**
* Image width
* @var string
*/
$width = '';
/**
* Image height
* @var string
*/
$height = '';
/**
* Alt text of the attachment
* @var string
*/
$img_alt = '';
// If ignore is set, just use width and height passed
if (!empty($args['ignore']) && !themify_is_image_script_disabled() || isset($themify->is_shortcode) && $themify->is_shortcode) {
if (!empty($args['w'])) {
$width = $args['w'];
}
if (!empty($args['h'])) {
$height = $args['h'];
}
} elseif (in_the_loop()) {
// Main query area
if (is_single()) {
// Single Entry
if (!($width = get_post_meta($post_id, 'image_width', true))) {
if (!($width = themify_get('setting-default_' . get_post_type() . '_single_image_post_width'))) {
$width = themify_get("setting-{$args['setting']}_width");
}
}
if (!($height = get_post_meta($post_id, 'image_height', true))) {
if (!($height = themify_get('setting-default_' . get_post_type() . '_single_image_post_height'))) {
$height = themify_get("setting-{$args['setting']}_height");
}
}
} elseif (themify_is_query_page()) {
// Query pages like Query Posts or Query Portfolios
$query_post_type = isset($themify->query_post_type) && 'post' != $themify->query_post_type ? $themify->query_post_type . '_' : '';
if (!($width = get_post_meta($themify->page_id, $query_post_type . 'image_width', true))) {
if (!($width = themify_get('setting-default_' . get_post_type() . '_index_image_post_width'))) {
$width = themify_get('setting-image_post_width');
}
}
if (!($height = get_post_meta($themify->page_id, $query_post_type . 'image_height', true))) {
if (!($height = themify_get('setting-default_' . get_post_type() . '_index_image_post_height'))) {
$height = themify_get('setting-image_post_height');
}
}
} elseif (is_archive() || is_tax() || is_search() || is_home()) {
// Category, Tag, Author, Date || Custom Taxonomy || Search
if (!($width = themify_get('setting-default_' . get_post_type() . '_index_image_post_width'))) {
$width = themify_get('setting-image_post_width');
}
if (!($height = themify_get('setting-default_' . get_post_type() . '_index_image_post_height'))) {
$height = themify_get('setting-image_post_height');
}
}
// Catch height before width so we can check if user entered something for width.
if (('' === $height || is_null($height)) && ('' === $width || is_null($width))) {
$height = $themify->height;
}
if ('' === $width || is_null($width)) {
$width = $themify->width;
}
} else {
if (!($width = get_post_meta($post_id, 'image_width', true))) {
if (!empty($args['h'])) {
$height = $args['h'];
}
}
if (!($height = get_post_meta($post_id, 'image_height', true))) {
if (!empty($args['w'])) {
$width = $args['w'];
}
}
}
if (themify_is_image_script_disabled()) {
// Use WP standard image sizes
if (!empty($args['image_size'])) {
// If image_size parameter is set
$feature_size = $args['image_size'];
} elseif (isset($themify->image_size) && !empty($themify->image_size)) {
// or if Themify::image_size is set
$feature_size = $themify->image_size;
} else {
if (in_the_loop() && (!isset($themify->is_shortcode) || !$themify->is_shortcode)) {
// Main query area
if (is_single()) {
$feature_size = get_post_meta($post_id, 'feature_size', true);
if (empty($feature_size) || 'blank' == $feature_size) {
$feature_size = themify_get('setting-image_post_single_feature_size');
}
} elseif (themify_is_query_page()) {
$feature_size = get_post_meta($themify->page_id, $query_post_type . 'feature_size_page', true);
if (empty($feature_size) || 'blank' == $feature_size) {
$feature_size = themify_get('setting-image_post_feature_size');
}
} elseif (is_archive() || is_tax() || is_search() || is_home()) {
$feature_size = themify_get('setting-image_post_feature_size');
}
}
}
if (!isset($feature_size) || 'blank' == $feature_size) {
$feature_size = themify_get('setting-global_feature_size');
if (empty($feature_size) || 'blank' == $feature_size) {
$feature_size = apply_filters('themify_global_feature_size', 'large');
}
}
if (empty($args['src'])) {
// Set URL to use for final output.
$img_url = themify_image_url(false, $feature_size);
} else {
$img_url = $args['src'];
}
} else {
// Use Image Script
if (empty($args['src'])) {
if (has_post_thumbnail()) {
$img_url = themify_image_url();
} else {
foreach (explode(',', $args['field_name']) as $field) {
if ($img_url = get_post_meta($post_id, trim($field), true)) {
break;
}
}
}
} else {
$img_url = $args['src'];
}
if (0 === $height) {
$args['crop'] = false;
}
// Set URL to use for final output.
$temp = themify_do_img($img_url, $width, $height, (bool) $args['crop']);
$img_url = $temp['url'];
// Get alt text by attachment id if it was returned.
if (isset($temp['attachment_id'])) {
$img_alt = get_post_meta($temp['attachment_id'], '_wp_attachment_image_alt', true);
}
}
// No image was defined, parse content to find the first image.
if (empty($img_url) && ($args['f_image'] || themify_check('setting-auto_featured_image'))) {
$content = get_the_content();
foreach (array('img', 'embed', 'iframe') as $tag) {
$count = substr_count($content, '<' . $tag);
if ($count >= 1) {
$start = strpos($content, '<' . $tag, 0);
$pos = substr($content, $start);
$end = strpos($pos, '>');
$temp = themify_prep_image(substr($pos, 0, $end + 1));
$ext = explode('.', $temp['src']);
$ext = strtolower($ext[count($ext) - 1]);
if (strpos($temp['src'], '.') && ($ext == 'jpg' || $ext == 'jpeg' || $ext == 'gif' || $ext == 'png')) {
$auto_image_url = isset($temp['src']) ? $temp['src'] : '';
$args['class'] .= isset($temp['class']) ? ' ' . $temp['class'] : '';
$args['alt'] = $temp['alt'];
if (themify_is_image_script_disabled()) {
$upload_dir = wp_upload_dir();
$img_url = themify_image_url(false, $feature_size, themify_get_attachment_id_from_url($auto_image_url, $upload_dir['baseurl']));
if (empty($img_url)) {
$img_url = esc_url($auto_image_url);
}
} elseif ($temp = themify_do_img($auto_image_url, $width, $height, (bool) $args['crop'])) {
$img_url = $temp['url'];
}
break;
}
}
}
}
if (!empty($img_url)) {
if ($args['urlonly']) {
$out = $img_url;
} else {
// Build final image
$out = '';
if ($args['image_meta'] == true) {
$out .= "<meta itemprop=\"image\" content=\"{$img_url}\"></meta>";
}
$out .= "<img src=\"{$img_url}\"";
if ($width) {
$out .= " width=\"{$width}\"";
}
if ($height) {
$out .= " height=\"{$height}\"";
}
if (!empty($args['class'])) {
$out .= " class=\"{$args['class']}\"";
}
// If alt was passed as parameter, use it. Otherwise use alt text by attachment id if it was fetched or post title.
if (!empty($args['alt'])) {
$out_alt = $args['alt'];
} elseif (!empty($img_alt)) {
$out_alt = $img_alt;
} else {
$out_alt = the_title_attribute('echo=0');
}
$out .= ' alt="' . esc_attr($out_alt) . '" />';
}
$out = $args['before'] . $out . $args['after'];
} else {
$out = '';
}
return $out;
}
/**
* Generate image for high resolution devices.
*
* @since 1.9.0
*
* @param string $img_url
* @param int $width
* @param int $height
* @param bool $crop
* @param int $new_w
* @param int $new_h
* @param array $image_src
* @param string $img_file
* @param string $file_path
*
* @return array
*/
function themify_do_retina_img($img_url, $width, $height, $crop, $new_w, $new_h, $image_src, $img_file, $file_path)
{
// @2x image file path
$destfilename = preg_replace('/([0-9]+)x([0-9]+)/', '$1x$2@2x', $img_file);
// check if retina image file exists
if (!is_file($destfilename) || !getimagesize($destfilename)) {
// Retina dimensions
$retina_w = $width * 2;
$retina_h = $height * 2;
// Get expected image size after cropping
$dims_x2 = image_resize_dimensions($image_src[1], $image_src[2], $retina_w, $retina_h, $crop);
$dst_x2_w = $dims_x2[4];
$dst_x2_h = $dims_x2[5];
// If possible, make the @2x image
if ($dst_x2_h) {
$retina_img = wp_get_image_editor($file_path);
if (!is_wp_error($retina_img)) {
$retina_img->resize($retina_w, $retina_h, $crop);
$retina_img->set_quality(95);
$suffix = $new_w . 'x' . $new_h . '@2x';
$filename = $retina_img->generate_filename($suffix);
$retina_img = $retina_img->save($filename);
// Add the resized dimensions to original image metadata,
// so we can delete resized images if the original image is deleted from Media Library
$attachment_id = themify_get_attachment_id_from_url($img_url);
if ($attachment_id) {
$metadata = wp_get_attachment_metadata($attachment_id);
if (isset($metadata['image_meta'])) {
$metadata['image_meta']['resized_images'][] = $suffix;
wp_update_attachment_metadata($attachment_id, $metadata);
}
}
}
}
}
}
