Retina Integration

Hi,
i think you need an additional action-hook right before or after the “crop_thumbnails_after_save_new_thumb” with all the input data – that would solve your problem. I will have a look on it in the next week.

Thanks for the quick reply. I’m not quite sure how an additional action allows me to retina-ize the current thumbnail but I appreciate any time you are able to spend on this. Let me know if there is anything you need from me.

Just following up on this. Thanks.

@joelstrategycube
Sorry about the delay. I added 2 new actions (in version 1.3.0) right before and after the wp_crop function, which should provide all needed variables. Also the wp_crop is now a filter, so its also possible to override the hole functionality all together.

Have a look on functions\save.php
Actions:
crop_thumbnails_before_crop
crop_thumbnails_after_crop

Filter:
crop_thumbnails_do_crop

@volkmar-kantor
Thank you! I was able to get something working.

It’s not fully tested but if anyone stumbles across this:

/**
 * 
 * Action for Crop Thumbnails plugin
 * Uses input crop data to generate retina size
 * 
 */
function add_retina_for_cropped_thumbnails( $input, $croppedSize, $temporaryCopyFile, $currentFilePath ) {

    $temporaryCopyFile = generate_retina_filename( $temporaryCopyFile, '@2x' );
    $retina_file = generate_retina_filename( $currentFilePath, '@2x' );

    $currentFilePathInfo = pathinfo($retina_file);
    $currentFilePathInfo['basename'] = wp_basename($retina_file);//uses the i18n version of the file-basename
    
    $retina_w = $croppedSize['width'] * 2;
    $retina_h = $croppedSize['height'] * 2;
    
    $cropped = wp_crop_image(						    // * @return string|WP_Error|false New filepath on success, WP_Error or false on failure.
        $input->sourceImageId,							// * @param string|int $src The source file or Attachment ID.
        $input->selection->x,							// * @param int $src_x The start x position to crop from.
        $input->selection->y,							// * @param int $src_y The start y position to crop from.
        $input->selection->x2 - $input->selection->x,	// * @param int $src_w The width to crop.
        $input->selection->y2 - $input->selection->y,	// * @param int $src_h The height to crop.
        $retina_w,							            // * @param int $dst_w The destination width.
        $retina_h,							            // * @param int $dst_h The destination height.
        false,											// * @param int $src_abs Optional. If the source crop points are absolute.
        $temporaryCopyFile								// * @param string $dst_file Optional. The destination file to write to.
    );
    
    // delete old file
    $should_delete = apply_filters('crop_thumbnails_should_delete_old_file',
        false, // default value
        $input->activeImageSizes->name,
        $input->activeImageSizes,
        $cropped
    );

    $_error = false;
    if( !empty($cropped) ) {
        if( $should_delete ) {
            @unlink($currentFilePathInfo['dirname'].DIRECTORY_SEPARATOR.$currentFilePathInfo['basename']);
        }
        if(!@copy($cropped, $retina_file)) {
            $_error = true;
        }
        if(!@unlink($cropped)) {
            $_error = true;
        }
    }    
}
add_action( 'crop_thumbnails_before_crop', 'add_retina_for_cropped_thumbnails', 10, 4 );

function generate_retina_filename( $file, $suffix ) {
    $dir = pathinfo( $file, PATHINFO_DIRNAME );
    $ext = pathinfo( $file, PATHINFO_EXTENSION );
 
    $name    = wp_basename( $file, ".$ext" );
    $new_ext = strtolower( $extension ? $extension : $ext );
 
    if ( ! is_null( $dest_path ) ) {
        $_dest_path = realpath( $dest_path );
        if ( $_dest_path ) {
            $dir = $_dest_path;
        }
    }
 
    return trailingslashit( $dir ) . "{$name}{$suffix}.{$new_ext}";
}

• This reply was modified 4 years, 1 month ago by joelstrategycube.

Hi @joelstrategycube,
thank you for sharing your solution.