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<?php
function _image_get_preview_ratio($w, $h) {
    $max = max($w, $h);
    return $max > 400 ? (400 / $max) : 1;
}
?>

• Docs for page image-edit.php
  void _flip_image_resource ( $img, $horz, $vert). $img; $horz; $vert. _image_get_preview_ratio (line 236). void _image_get_preview_ratio ( $w, $h). $w; $h ...
  phpdoc.wordpress.org
• PHPXRef 0.7 : WordPress : /wp-admin/includes/image-edit.php source
  0); 340 break; 341 case 'crop': 342 $sel = $operation->sel; 343 $scale = 1 / _image_get_preview_ratio( imagesx($img), imagesy($img) ); // discard preview ...
  phpxref.ftwr.co.uk
• stream_preview_image (WordPress Function) - WPSeek.com
  $img = image_edit_apply_changes($img, $changes); // scale the image $w = imagesx($img); $h = imagesy($img); $ratio = _image_get_preview_ratio($w, $h); ...
  wpseek.com
• stream_preview_image | A HitchHackers guide through WordPress
  Feb 12, 2011... imagesy($img); $ratio = _image_get_preview_ratio($w, $h); $w2 = $w * $ratio; $h2 = $h * $ratio; $preview = wp_imagecreatetruecolor($w2, ...
  hitchhackerguide.com

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