ok, i'm getting one step closer to the controls actually working.
I have commented out:
if(!$filename || !file_exists($filename))
return $string;
and
if($width <= 0 || $height <= 0)
return $string;
then i got the following error:
Warning: getimagesize(url) [function.getimagesize]: failed to open stream: No such file or directory in myurl/plugins/scissors/scissors.php on line 805
Warning: Division by zero in myurl/plugins/scissors/scissors.php on line 876
I commented out line 805 which is:
list($width, $height) = getimagesize($filename);
This removed the first warning message and left me with the Division by Zero message on line 876. To remove the Division by Zero message, I commented out:
$string .= "<input type='hidden' id='scissorsFullAspectRatio-$postId' value='" . ($width / $height) . "' />";
and it has removed all warning messages and the controls actually appeared.
I was able to click on the controls and when selecting "Apply", I get the progress bar as though it is actually doing something but then I get an error message saying, "Invalid post-id"
I hope the above helps with diagnosing this problem.
Thank you for all your help so far.