Purescript based canvas rendering framework.
Note: I am in the process of extracting the library from one of my side projects. At the moment this repo only contains a small part of it.
Notable features include:
- FRP based rendering with TEA-like actions
- svg-like event listeners
- flexbox-inspired layouting system
- multi-step rendernig, where one step can query metadata collected from previous steps:
- local transform matrices
- geometries
- relative & absolute bounds
As a testament to the extensability of the library, both the Padding and the Flex components have been implemented without adding any new branches to the Geometry adt.
- layers: at the moment each render step represents a layer. I would to support layers nested down a larger tree.
- multi-canvas rendering: display data on more than one canvas for minimal re-renders
- hover-events (eg: onhoverstart, onhoverend). Right now hovering is pull based (the programmer asks the library what is curently being hovered over)
- chrome extension adding a geometry inspector
- multiple back ends (svg, webgl, etc)
Building the package
spago build
Running the test suite
spago -x ./spago.test.dhall test
If you think a particular helper would be an useful addition, feel free to open an issue.