On Dec 12, 2011, at 4:04 PM, Graham Cox wrote: > I'm drawing objects into a bitmap rep and a context created from it. > > The y axis extends downwards (i.e. it's flipped). > > Normal objects render correctly. > > Text is inverted. > > > > This problem keeps rearing its ugly head. I'm still not sure I really > understand it. > > When I set up the context from the bitmap, I create a transform that flips > the context. Paths and so forth appear the right way up. I'm rendering text > using the built-in text rendering engine (NSLayoutManager) and it fails to > notice that the context is flipped, so it appears to add its own flipping > transform and so text is inverted. I need to let the context I create from > the bitmap know that it is flipped, but there is no -setFlipped: method on > NSGraphicsContext, and the method that creates a context from a bitmap > doesn't let me pass the flippedness, as the method for creating a context > from a graphicsPort does. > > How do I inform the context that it is flipped, so that text is rendered > correctly?
IIRC, NSLayoutManager expects that the view it is drawing in is flipped (-isFlipped returns YES). If it isn't, it will draw text inverted. Soooo.. I think all you need is to implement isFlipped returning YES. HTH, Keary Suska Esoteritech, Inc. "Demystifying technology for your home or business" _______________________________________________ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
