Re-size WordPress images on the fly using built-in WordPress functions. Use the vt_resize function to dynamically re-size WordPress images located in a custom field, featured image, uploads directory, NextGen Gallery WordPress plugin, or even an external link to an offsite image. It is very simple to use, just copy/paste the code below into your WordPress … Read more
I think the only solution you have at the moment is to disable all intermediate image sizes: add_filter( ‘intermediate_image_sizes’, ‘__return_empty_array’, 99 ); And then manually generate them, depending on the post type, by hooking into ‘wp_generate_attachment_metadata’, where you do have access to the attachment id (and therefore to it’s parent post): function do_your_stuff( $data, $attachment_id … Read more
To remove the inline width in a clean PHP-way could be done with a filter, as described in the source code: https://core.trac.wordpress.org/browser/trunk/src/wp-includes/media.php#L1587 Returning a zero (or false) will remove it: add_filter( ‘img_caption_shortcode_width’, ‘__return_false’ );
I have just built a plugin that does this. It is not perfect but it do its job. You can find it in my Github: https://github.com/pontusab/wp-ftp-media-library So you need to change some things within the file on the row 28: /** * Change this to match your server * You only need to change the … Read more
You can use the native WordPress image_resize function to scale up images. WordPress provides a hook called “image_resize_dimensions” which you can use to overwrite the default cropping settings. Here is a modified function which will support scaling up: function image_crop_dimensions($default, $orig_w, $orig_h, $new_w, $new_h, $crop){ if ( !$crop ) return null; // let the wordpress … Read more
I don’t remember a function that will do precisely that, but it is easily achieved with API overall: Retrieve attachment ID with get_post_thumbnail_id() Retrieve available sizes with get_intermediate_image_sizes() For each size use wp_get_attachment_image_src(), which gives precisely data you need (URL and dimensions).
If you want display an image that is inserted into your content (a hotlinked image, for example), you must use a function like this (source): add in functions.php: function catch_that_image() { global $post, $posts; $first_img = ”; ob_start(); ob_end_clean(); $output = preg_match_all(‘/<img.+src=[\'”]([^\'”]+)[\'”].*>/i’, $post->post_content, $matches); $first_img = $matches [1] [0]; if(empty($first_img)){ //Defines a default image $first_img … Read more
This function will generate an image by temporarily registering an image size, generating the image (if necessary) and the removing the size so new images will not be created in that size. function lazy_image_size($image_id, $width, $height, $crop) { // Temporarily create an image size $size_id = ‘lazy_’ . $width . ‘x’ .$height . ‘_’ . … Read more
For me, the button became available once I clicked and dragged the mouse cursor over part of the image to select an area to crop.
I want to disable the srcset only when calling a specific thumbnail size (for example only when calling full image size). Here are two ideas (if I understand you correctly): Approach #1 Let’s check the size from the post_thumbnail_size filter. If it matches a corresponding size (e.g. full) then we make sure the $image_meta is … Read more