iphone - Why are the bounds of an UIView a CGRect and not a CGSize? -


is there reason why bounds property of uiview (an nsview) cgrect when information you'll ever want in property size of cgrect.

is shortcut drawing since you'll need cgrect when drawing? or specific special case origin of bounds else {0, 0}?

the frame specifies view relative superview, while bounds specifies view allowed draw relative frame.

by changing bounds origin and/or width can clipping, e.g., or drawing outside of view.

i.e, bounds origin (0,0) must not so, when clipping.

furthermore, bounds used affine transformations instead of frame , represents position after transformation have origin different (0,0);


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