`DEPTH` was a constant at 4, and the generator widens two to four ways per
level, so raising it buys overlap between dependency paths rather than
ancestry. `IRIS_GENERATED_DEPTH` and `IRIS_GENERATED_SEEDS` select the
load; the default is what it was.
Depth 4 was hiding divergences. At depth 5 and beyond the sweep fails on
the tree as it stands, with no `Branch` node and every span filling across
its axis, so it is neither of the things I suspected -- it predates both.
A failure printed a chain of type names, which is not enough to write the
tree out again, and hand-reconstruction from one has failed three times
now. `describe` prints what each ancestor was configured with, so a run
says `Text < SetSize{x:34 px;} < Aligned{x:neg,y:pos} < SetSize{x:35 px;}
< Stack{n:2}` and the fast test that replaces the seed can be built from
that. `Widget: Any`, so this needs no new plumbing.
Two fixtures assumed every tree grows a declared size to change, and one
assumed a span it shuffles is drawn -- a span behind a branch nobody took
is not. Both are vacuous seeds rather than failures.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
iris
My experimental attempt at a rust ui library (also my first ui library).
It's currently designed around using retained data structures (widgets), rather than diffing generated trees from data like xilem or iced. This is an experiment and I'm not sure if it's a good idea or not.
Examples are in examples, eg. cargo run --example tabs.
Goals, in general order:
- does what I want it to (text, images, video, animations)
- very easy to use ignoring ergonomic ref counting
- reasonably fast / efficient (a lot faster than electron, save battery life, try to beat iced and xilem)
dev details
not targeting web rn cause wanna use actual nice gpu features & entire point of this is to make desktop apps / not need a web browser
general ideas trynna use rn / experiment with:
- retained mode
- specifically designed around wgpu so there's no translation
- postfix functions for most things to prevent unreadable indentation (going very well)
- events can be done directly where you draw the widgets
- almost no macros in user code & actual LSP typechecking (variadic generics if you can hear me please save us)
- relative anchor + absolute offset coord system (+ "rest" / leftover during widget layout)
- single threaded ui & pass context around to make non async usage straightforward (pretty unsure about this)
- widgets store outside of the actual rendering so they can be moved around and swapped easily (unsure about this but seems to work good for now)
under heavy initial development so not gonna try to explain status, maybe check TODO for that; sizable chance it gets a rewrite once I know everything I need and what seems to work best
it's called iris because it's the structure around what you actually want to display and colorful