[TYPO3-core] RFC #11718: speed up function t3lib_iconWorks::skinImg()

[Rupert Germann]

Hi,

this is a SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=11718

Branches: Trunk

problem:
function t3lib_iconWorks::skinImg() wastes processing time because it is 
called hundreds of times when rendering the extended listview in the 
BackEnd. F.e. the "garbage can" icon is the same on each row, but it is 
processed again and again for each record.

solution:
cache the results of function t3lib_iconWorks::skinImg() and re-use it 
when the same icon is requested again.


I attached an additional patch with stripped whitespaces for better reading


greets
rupert

"There shall be no new TYPO3 version delivering content slower than its 
predecessor!"