An intuitive HSB color picker built in Swift. Supports multiple selection handles and is customizable to your needs.
> TODO: Image / GIF
## Examples
```Swift
let colorPicker = ChromaColorPicker(frame: CGRect(x: 0, y: 0, width: 300, height: 300))
addSubview(colorPicker)
// Optional: Add multiple handles to the color picker
// Optional: Attach a ChromaBrightnessSlider to a ChromaColorPicker
let brightnessSlider = ChromaBrightnessSlider(frame: CGRect(x: 0, y: 0, width: 280, height: 32))
addSubview(brightnessSlider)
colorPicker.connect(brightnessSlider) // or `brightnessSlider.connect(to: colorPicker)`
```
## Usage
### Multiple Handles
```Swift
// Add handles
{TODO}
// Add a custom handle
{TODO}
// Remove handles
{TODO}
```
### Supported UIControlEvents
## Installation
### Carthage
```bash
github "joncardasis/ChromaColorPicker"
```
### Cocoapods
```bash
pod 'ChromaColorPicker'
```
### Manually
Add all files from the `Source` folder to your project.
## Components
### ChromaColorPicker
An HSB color picker with support for adding multiple color selection handles.
### ChromaBrightnessSlider
[ChromaBrightnessSlider]() is a slider UIControl which can be attached to any `ChromaColorPicker` via the `connect(to:)` method. ChromaBrightnessSlider can also function as a stand-alone UIControl.
### Supported UIControlEvents
You can observe on the following UIControlEvents via `UIControl`'s `addTarget` method:
```Swift
addTarget(self, action: #selector(sliderDidValueChange(_:)), for: .valueChanged)
@objc func sliderDidValueChange(_ slider: ChromaBrightnessSlider) {
print("new color: \(slider.currentColor)")
}
```
_ChromaColorPicker_
| Event | Description |
| :-----------------:|:-------------|
| `.touchDown`(no) | Called when a handle is first grabbed. |
| `.touchUpInside`(no) | Called when a handle is let go. |
| `.valueChanged` | Called whenever the color has changed. |
| `.touchDragInside`(no) | Called when a handle has moved via a drag action. |
| `.touchUpInside` | Called when a handle is released. |
_ChromaBrightnessSlider_
| Event | Description |
| :-----------------:|:-------------|
| `.touchDown` | Called when a the slider is grabbed. |
| `.valueChanged` | Called whenever the slider is moved and the value has changed. |
| `.touchUpInside` | Called when the slider handle is released. |
##### Example
```Swift
```
## License
ChromaColorPicker is available under the MIT license. See the LICENSE file for more info.