Hi all, Recently I built an (experimental) app around CALayer and friends which implements a vector schematic editor.
I found that CALayer isn't, not too surprisingly, really a good base for vector graphics - CAShapeLayer is nice enough but there's nothing for text and I rapidly ran into problems when trying to zoom into my view when layer objects became too large and started hitting OpenGL limits. I also found that supporting printing and capture to PDF needs a fair bit of work. The ability to perform easy animations is nice but not really important for the application here. So I'm looking into implementing a CALayer-like architecture but which just draws using Core Graphics functions in the normal manner. Fairly straightforward but I'm having a bit of difficulty with methods such as -convertRect:toLayer: My question is, is there a way to directly convert coordinates between two unrelated layers in a tree, or are these methods implemented by recursion up to a common parent node and then back down to the target layer? If I had some hint of how this was done in the real CALayer architecture it would help me avoid wasting time trying various blind alleys. --Graham _______________________________________________ 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
