On Dec 14, 2014, at 8:53 PM, Jerry Krinock <je...@ieee.org> wrote: > I’m modernizing the old images on some buttons in an OS X app, replacing > their .png resources with simple line art, drawn in code. In so doing I > stumbled across Daniel Jalkut’s old LittleYellowGuy demo [1], in which the > drawing code is in the delegate of a NSCustomImageRep, which is added to an > empty image. I’ve always done this instead by sending -lockFocus to an empty > image and drawing directly into it. For my purposes, is there any > performance or other advantage to using the NSCustomImageRep intermediary?
The article makes it fairly clear that it's about resolution independence. Apple's recommendation is to use +[NSImage imageWithSize:flipped:drawingHandler:]. That creates and manages the NSCustomImageRep under the hood. https://developer.apple.com/library/mac/documentation/GraphicsAnimation/Conceptual/HighResolutionOSX/CapturingScreenContents/CapturingScreenContents.html#//apple_ref/doc/uid/TP40012302-CH10-SW32 Regards, Ken _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
