Foren / Cotonti / Extensions / [CODE] Square Thumbnails

Enjoy :)

function sed_createthumb($img_big, $img_small, $small_x, $small_y, $keepratio, $extension, $filen, $fsize, $textcolor, $textsize, $bgcolor, $bordersize, $jpegquality, $dim_priority="Width")
        {
        global $cfg;
        $gd_supported = array('jpg', 'jpeg', 'png', 'gif');
 
        switch($extension) {
                case 'gif': $source = imagecreatefromgif($img_big); break;
                case 'png': $source = imagecreatefrompng($img_big); break;
                default: $source = imagecreatefromjpeg($img_big); break;
                }
 
    $thumb_size = $small_x;
	$width = imagesx($source);
	$height = imagesy($source); 
	
    if($width> $height) {
        $x = ceil(($width - $height) / 2 );
        $width = $height;
    } elseif($height> $width) {
        $y = ceil(($height - $width) / 2);
        $height = $width;
    }
 
    $new_im = ImageCreatetruecolor($thumb_size,$thumb_size);
    imagecopyresampled($new_im,$source,0,0,$x,$y,$thumb_size,$thumb_size,$width,$height);
 
        switch($extension)
                {
                case 'gif': imagegif($new_im, $img_small); break;
  				case 'png': imagepng($new_im, $img_small); break;
                default: imagejpeg($new_im, $img_small, $jpegquality); break;
                }
        imagedestroy($new_im);
        imagedestroy($source);
		
        return;
        }

It makes for much nicer thumbnails.

Right. But the code is here if they want to use squares :)

# simplex : Perhaps a "keep aspect ratio" or "square" option should be added into the thumbnail options?

Agreed.

You replace it with the existing function which is in functions.php

Well both. It resizes the shorter axis to your thumb width setting, then crops the longer axis to be the same as the shorter axis. All sites with square thumbs use this algorythm.