Using shortcode_atts_gallery filter

zulumaster
(@zulumaster)

9 years, 11 months ago

Is it possible to use the shortcode_atts_gallery filter to change the standard gallery image size?

Like this:

/* Register shortcode_atts_gallery filter callback */
add_filter( ‘shortcode_atts_gallery’, ‘xy_gallery_atts’, 10, 3 );

/* Change attributes of wp gallery to modify image sizes for your needs */
function xy_gallery_atts( $output, $pairs, $atts ) {

/* You can use these sizes:
– thumbnail
– medium
– large
– full
or, if your theme/plugin generate additional custom sizes you can use them as well
*/

$output[‘size’] = ‘medium’; //i.e. This will change all your gallery images to “medium” size

return $output;
}

Because I define a custom image size for Gallery-Thumbnails in the functions.php.

Thank’s

https://ww.wp.xz.cn/plugins/photoswipe-masonry/

Viewing 5 replies - 1 through 5 (of 5 total)

Plugin Author THRIVE – Web Design Gold Coast
(@deanoakley)

9 years, 11 months ago

Hi. Can you not use the image sizes in the plugin options?
Thread Starter zulumaster
(@zulumaster)

9 years, 11 months ago
No, the image size options in your plugin, has no effect on the current/old gallery images.

The WP is over 8 GB of images, that’s why I not want to do regenerate thumbnails.

My current image plugin is “responsive lightbox”, in the SwipeBox view.

A gallery-image is embedded in the source code as follows:
```
<dl class="gallery-item">
	<dt class="gallery-icon landscape">
	<a data-rel="lightbox-gallery-2" href="http://xxx.yyy.de/wp-content/uploads/2016/06/image.jpg" title=""><img width="110" height="110" alt="" class="attachment-galleryimagethumb size-galleryimagethumb" src="http://xxx.yyy.de/wp-content/uploads/2016/06/image-110x110.jpg"></a>
</dt></dl>
```
And in the functions.php i generate the thumbnail:
```
add_theme_support( 'post-thumbnails' );
# article: Imagegallery Thumbnails
add_image_size( 'galleryimagethumb', 110, 110, true );
```
That would be cool if there was a way to use the existing gallery images with your plugin.
Plugin Author THRIVE – Web Design Gold Coast
(@deanoakley)

9 years, 11 months ago
Yes you need to rebuild your thumbs for existing images. The Ajax re-sizer will take a while but should work for you.

Or you could edit the plugin. See these two lines in photoswipe-masonry.php
```
$thumb = wp_get_attachment_image_src( $aid , 'photoswipe_thumbnails');
$full = wp_get_attachment_image_src( $aid , 'photoswipe_full');
```
I hope that helps!
Thread Starter zulumaster
(@zulumaster)

9 years, 11 months ago
thank you, for your fast answer.
I edit the plugin from,
```
$thumb = wp_get_attachment_image_src( $aid , 'photoswipe_thumbnails');
```
to
```
$thumb = wp_get_attachment_image_src( $aid , 'galleryimagethumb');
```
that works.

But one big problem is still exist.
A single Image in a old/existing article does not open with this plugin.
I can fix this per hand, if i change the image properties from,
“Link zur: Benutzerdefinierte URL” to “Link zur: Medien-Datei”, and save again. Then the plugin works, but you know, i have 8GB of images and many articles. But change every single image in the articles is not the solution.

Have you an idea?

Thanks
Alex
Plugin Author THRIVE – Web Design Gold Coast
(@deanoakley)

9 years, 11 months ago

Usually by default there is no class in these images to trigger the popup in single images. So you need to re-save the page to add the class “.single_photoswipe”.

Do your single images have a class and link to the full image already? If so you might be able to get it working.

Viewing 5 replies - 1 through 5 (of 5 total)

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