https://github.com/modo-studio/curt
Swift operators to make constraints setup faster to write and easier to read.
https://github.com/modo-studio/curt
autolayout constraints operators swift
Last synced: about 1 year ago
JSON representation
Swift operators to make constraints setup faster to write and easier to read.
- Host: GitHub
- URL: https://github.com/modo-studio/curt
- Owner: modo-studio
- License: mit
- Created: 2017-01-30T15:20:28.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2022-10-05T22:46:08.000Z (over 3 years ago)
- Last Synced: 2024-03-27T09:14:54.756Z (over 2 years ago)
- Topics: autolayout, constraints, operators, swift
- Language: Swift
- Homepage: http://caramba.io
- Size: 71.3 KB
- Stars: 3
- Watchers: 1
- Forks: 0
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Curt
[](https://travis-ci.org/carambalabs/Curt)
[](https://codecov.io/gh/carambalabs/Curt)
Curt is a collection of Swift operators to make constraints setup faster to write and easier to read.
Using Curt, constraints like:
```Swift
viewA.topAnchor.constraint(equalTo: viewB.bottomAnchor, constant: 10).isActive = true
```
Can be defined like:
```Swift
viewA.topAnchor ~ viewB.bottomAnchor + 10
```
## Installation
To install Curt you have to add the `Curt.swift` file to your project.
Since operator overloading can't be done in a separate module Curt can't be added to you project using solutions like `cocoapods` or `carthage`. (*We are investigating solutions for this*)
## Operators
These are the Curt operators and some examples, check out the [tests](https://github.com/carambalabs/Curt/blob/master/Example/CurtTests/Tests.swift) to see all the cases and examples between Curt and Native API. All the operators return **activated** `NSLayoutConstraint`.
### Operator `~`
You can use it to constrain any kind of NSLayoutAnchor.
```Swift
viewA.topAnchor ~ viewB.topAnchor
viewA.widthAnchor ~ viewB.widthAnchor
viewA.centerXAnchor ~ viewB.centerXAnchor
viewA.heightAnchor ~ 120
```
This operator can also be used to constrain all X and Y axis anchors at once
```Swift
viewA ~ viewB
```
### Operators `<~` `>~`
This operators are the same but working as `lessThanOrEqualTo` and `greaterThanOrEqualTo`.
```Swift
viewA.topAnchor >~ viewB.topAnchor
viewA.widthAnchor <~ viewB.widthAnchor
viewA.heightAnchor >~ 120
```
### Operators `+` `-`
These operators are used to add the constant to any constraint.
```Swift
viewA.topAnchor ~ viewB.bottomAnchor + 20
viewA.bottomAnchor ~ viewC.bottomAnchor - 20
```
### Operator `*`
This operator is used to add the multiplier factor to any constraint.
```Swift
viewA.widthAnchor ~ viewA.heightAnchor * 2.0 + 40
```
## About
This project is funded and maintained by [Caramba](http://caramba.io). We 💛 open source software!
Check out our other [open source projects](https://github.com/carambalabs/), read our [blog](http://blog.caramba.io) or say :wave: on twitter [@carambalabs](http://twitter.com/carambalabs).
## Contribute
Contributions are welcome :metal: We encourage developers like you to help us improve the projects we've shared with the community. Please see the [Contributing Guide](https://github.com/carambalabs/Foundation/blob/master/CONTRIBUTING.md) and the [Code of Conduct](https://github.com/carambalabs/Foundation/blob/master/CONDUCT.md).
## License
Curt is available under the MIT license. See the LICENSE file for more info.