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 $image_meta is … Read more
Add this to the functions.php file in the theme folder. It replaces the original image with the large image set in settings. You might want to setup a new image format and use that as the new original size though. function replace_uploaded_image($image_data) { // if there is no large image : return if (!isset($image_data[‘sizes’][‘large’])) return … Read more
There is a Plugin called Attachments http://wordpress.org/extend/plugins/attachments/ Maybe this is something you looking for.
This has always been a bugbear for me – the lack of on-demand image sizing, and the subsequent number of files you can end up with if you have lots of sizes! I can see the logic behind your efforts – the trouble is, add_image_size only truly comes into play at point-of-upload. As such, is_page_template(..) … Read more
wp_get_attachment_url() will only return url to original attachment file, this function only accepts attachment id as parameter. Use wp_get_attachment_image_src() or wp_get_attachment_image() instead.
well if you are using WyPiekacz plugin; as you said for checking that featured image is uploaded, you can tweak it little bit to check that if there is featured image it is of minimum dimesions as you required. $has_thumbnail = false; if ( ( $post_id > 0 ) && function_exists( ‘has_post_thumbnail’ ) ) { … Read more
Keep in mind that the $content_width global is not only used for images, but also for embedded objects, such as video. So, any solution won’t merely be a case of dropping use/support of $content_width itself. Usually a Theme will constrain content-area images in a few ways: Large Image size: Defining $content_width something appropriate for the … Read more
When an image is uploaded in WordPress, it is saved in its original size, and also as some resized copies in different sizes. In this way it becomes easy to use different sizes, of the same image, for different purposes. By default, WordPress creates 3 copies in 3 different sizes: ‘thumb’ ‘medium’ ‘large’ The size … Read more