Graham, +[NSGraphicsContext graphicsContextWithBitmapImageRep:] is a cover method of a more general, +[NSGraphicsContext graphicsContextWithGraphicsPort:flipped:].
You can create a CGBitmapContextRef out of the bitmap rep & pass to the latter method. Aki On 2011/12/12, at 17:07, Graham Cox wrote: > > On 13/12/2011, at 12:00 PM, Keary Suska wrote: > >> IIRC, NSLayoutManager expects that the view it is drawing in is flipped > > It expects the CONTEXT it is drawing into is flipped, and in order to do that > it asks the CONTEXT the value of -isFlipped. > > If the context is associated with a view, the view is queried. > > I don't have a view, I have a context. I create the context from a bitmap rep > (I'm rendering text, and other things, into an offscreen image). When you do > that, it assumes that the context/bitmap is not flipped, and -isFlipped > returns NO. There is no way I can see to return YES from isFlipped, or pass > setFlipped:YES to the context, or set the flippedness to YES when the context > is created. > > That is the problem I have. > >> (-isFlipped returns YES). If it isn't, it will draw text inverted. Soooo.. I >> think all you need is to implement isFlipped returning YES. > > > I suppose I could do this by subclassing NSGraphicsContext, but that seems a > surprising requirement given the task I'm trying to perform. Surely correctly > rendering text into a bitmap rep is something that the design of the graphics > system has anticipated? > > --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: > http://lists.apple.com/mailman/options/cocoa-dev/aki%40apple.com > > This email sent to a...@apple.com _______________________________________________ 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
