6 releases
0.1.5 | Jul 10, 2024 |
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0.1.4 | Jul 9, 2024 |
0.1.3 | Jun 9, 2024 |
#876 in GUI
92KB
2.5K
SLoC
Buoyant
This is a library for writing and rendering SwiftUI-like layouts in Rust.
Goals
- Embedded / no_std support:
- Zero heap allocation
- Minimal memory footprint
- Immediate mode, CPU rendering
- Support for both character-based and pixel-based rendering and layout
- Ability to support a variety of render devices (e.g., terminal, framebuffer, SPI display, ...)
Layout and rendering
Layout code is shared across all pixel types. Views produce a layout which can then be rendered to a render target, calling the rendering code specific to the render target's pixel type.
Available render targets
-
TextBuffer
: A basic fixed-sizechar
buffer. Does not respect graphemes. This is primarily useful for testing and debugging. -
CrossTerm
: Renders colored character-pixels to a terminal using thecrossterm
crate.
Roadmap
Right now, all the core components exist to build and render static views.
These are the planned features, in order of priority:
- embedded-graphics trait implementations
- default pixel rendering for pixel-based render targets
- More robust Font support
- embedded-graphics fonts
- Embedded SPI displays with built-in fonts
- State management
- Layout reuse
- Animations
- Interactivity
- click/tap routing
- focus management / keyboard input
These things would be nice:
- Unicode / grapheme support for proper text handling outside embedded
Usage notes
This project is a work in progress and should not be used in production.
At this point in time, all public API should be considered unstable, and this library does not yet respect SemVer. Yeah I should have started at 0.0.x. Sorry.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
Dependencies
~1–6.5MB
~30K SLoC