Where is the place to change thumb defaults?

Kirby 2 Solved ✅
1

Hello,

When I add an image to a page, a thumbnail file is created at “/thumbs/page” folder. And the file’s dimensions are 75,75px. But I want to change these sizes. Actually I don’t want to crop images. Want only change the width and calculate height automaticaly. Generally and specific for a page.

Is it possible to do that?

Thank you

2

What is your use case? The 75x75 thumb is only generated for use in the panel. In the frontend, you can create whatever sizes you need.

3

I want to create thumbnails automatically when I add image in the panel. Then I can use them in the front-end. If I create thumbs in the front-end, then the generation could happen every time when the user visit the page? I really don’t get it.

4

No, the thumbnail is only created if it does not exist yet, not every time the page is reloaded. You can of course use a hook to automatically create the thumbs on file upload/replace: https://getkirby.com/docs/developer-guide/advanced/hooks

1 Like
5

I will definitely look at it and return here with the result after some experiments.

6

However, I’m not sure you really need to create these thumbnails in advance. Anyway, here is an example hook:

kirby()->hook('panel.file.upload', function($file) {
    // your hook code
    $maxDimension = 1024;
    if ($file->width() > $maxDimension or $file->height() > $maxDimension) {
       // give a 1024x1024 image (for testing purposes) 
       $file->resize($maxDimension,$maxDimension);
     } 		
    });

If you need several sizes, you would have to adapt this accordingly.

1 Like
7

Perfect. Thank you so much!

kirby()->hook(['panel.file.upload', 'panel.file.replace'], function($file) {
		$IDsToProceed = ["home", "test"];
		if (in_array($file->page()->id(), $IDsToProceed)) {
	    	thumb($file, array('width' => 300));
			// debug
	    	$path = kirby()->roots()->content();      
	    	file_put_contents( $path . '/test.txt', print_r($file->page()->id(), true) );
		}
});