luke@tasis.utas.oz (Luke Visser) (09/08/88)
The way that the finder handles the icon mask in the latest system software
has changed. Previously it did an XOR with the mask to show the selected
icon. However this is not so anymore. Does anyone know what the actual
alogorithm is now.
Tech Note 55 talks about how icons are drawn, however that is the old way
(XOR) and I couldn't find any latter tech notes.
Luke Visser
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UUCP: {enea,hplabs,mcvax,uunet,ukc}!munnari!tasis.utas.oz!lukebob@eecs.nwu.edu (Bob Hablutzel) (09/12/88)
> The way that the finder handles the icon mask in the latest system software > has changed. Previously it did an XOR with the mask to show the selected > icon. However this is not so anymore. Does anyone know what the actual > alogorithm is now. This has changed as part of the color support for new machines. In a color environment, XORing with the hardcoded mask leads to results that Apple's engineers didn't like. The current algorithm involves figuring out an all solid black mask from the first ICON in the ICN# resource, and XORing with that. This was foreshadowed in TN 147, but I couldn't find any reference which explained this. Bob Hablutzel BOB@NUACC.ACNS.NWU.EDU Disclaimer: <Deleted on request of my lawyers>