layout
This is a constraint based layout framework. Or more simply put, this generates the measurements for a visual layout which could then be used for:
- Positioning things on a PDF
- Drawing objects in a UI toolkit
Installation
- Add the dependency to your
shard.yml
:
dependencies:
layout:
github: da1nerd/layout.cr
- Run
shards install
Usage
require "layout"
screen = Layout::Block.new(Layout::Direction::COLUMN)
screen.width = 300f64
screen.height = 300f64
screen.x = 0f64
screen.y = 0f64
top_block = Layout::Block.new
top_block.height = 100f64
bottom_block = Layout::Block.new
screen.children = [top_block, bottom_block]
Layout.solve(screen)
# go use the calculated dimensions!
bottom_block.height.value # => 200f64
With the above code you'd have all the necessary dimensions to draw this stack of blocks.
Development
TODO Write development instructions here
Contributing
- Fork it (https://github.com/da1nerd/layout.cr/fork)
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create a new Pull Request
Contributors
- Joel Lonbeck - creator and maintainer