paint/event

This module contains events that can be triggered when building interactive applications.

See paint/canvas and the canvas.interact function for a practical example of how this is used.

Types

Event

pub type Event {
  Tick(Float)
  KeyboardPressed(Key)
  KeyboardRelased(Key)
  MouseMoved(Float, Float)
  MousePressed(MouseButton)
  MouseReleased(MouseButton)
}

Constructors

```
Tick(Float)
```
Triggered before drawing. Contains the number of milliseconds elapsed.
```
KeyboardPressed(Key)
```
Triggered when a key is pressed
```
KeyboardRelased(Key)
```
Triggered when a key is released
```
MouseMoved(Float, Float)
```
Triggered when the mouse is moved. Contains the x and y value for the mouse position.
```
MousePressed(MouseButton)
```
Triggered when a mouse button is pressed
```
MouseReleased(MouseButton)
```
Triggered when a mouse button is released.

Note, on the web you might encounter issues where the release event for the right mouse button is not triggered because of the context menu.

Key

</>

pub type Key {
  KeyLeftArrow
  KeyRightArrow
  KeyUpArrow
  KeyDownArrow
  KeySpace
  KeyW
  KeyA
  KeyS
  KeyD
  KeyZ
  KeyX
  KeyC
  KeyEnter
  KeyEscape
  KeyBackspace
}

Constructors

```
KeyLeftArrow
```
```
KeyRightArrow
```
```
KeyUpArrow
```
```
KeyDownArrow
```
```
KeySpace
```
```
KeyW
```
```
KeyA
```
```
KeyS
```
```
KeyD
```
```
KeyZ
```
```
KeyX
```
```
KeyC
```
```
KeyEnter
```
```
KeyEscape
```
```
KeyBackspace
```

MouseButton

</>

pub type MouseButton {
  MouseButtonLeft
  MouseButtonRight
  MouseButtonMiddle
}

Constructors

```
MouseButtonLeft
```
```
MouseButtonRight
```
```
MouseButtonMiddle
```
The scroll wheel button