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zakdances avatar zakdances commented on April 28, 2024

In RACSignal+RCLGeometryAdditions.m, NSLayoutBottom is mapped to CGRectMinYEdge. Seems like it should be mapped to CGRectMaxYEdge. Is this correct?

from reactivecocoalayout.

jspahrsummers avatar jspahrsummers commented on April 28, 2024

You're correct that RCL does not honor flipped coordinate systems. It's not actually possible for it to do so without providing some kind of view reference to basically every rect operator, since flippedness as a concept only makes sense within a specific coordinate system.

NSLayoutBottom is mapped to CGRectMinYEdge. Seems like it should be mapped to CGRectMaxYEdge. Is this correct?

No, the current values are correct for an unflipped coordinate system, which is what RCL targets. In AppKit, (0, 0) is the lower-left of the screen by default.

If you're flipping views just to make geometry calculation easier, I would strongly recommend against that, because they cause all sorts of mayhem and confusion even outside of RCL.

from reactivecocoalayout.

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