Struct WheelProgram 

pub struct WheelProgram<Message> {
    pub hue: f32,
    pub saturation: f32,
    pub value: f32,
    /* private fields */
}

A circular HSV color wheel canvas program for Iced.

Generic over any message type. Provide a callback that maps (hue, saturation) to your app’s message type.

• hue: 0-360 degrees
• saturation: 0.0-1.0
• value: 0.0-1.0 (brightness, controls wheel appearance)

Fields

hue: f32

saturation: f32

value: f32

Implementations

impl<Message> WheelProgram<Message>

pub fn new( hue: f32, saturation: f32, value: f32, on_change: impl Fn(f32, f32) -> Message + 'static, ) -> Self

Create a new wheel program.

on_change is called with (hue, saturation) when the user clicks or drags.

Trait Implementations

impl<Message: Clone> Program<Message> for WheelProgram<Message>

type State = WheelState

The internal state mutated by the Program.

fn update( &self, state: &mut WheelState, event: &Event, bounds: Rectangle, cursor: Cursor, ) -> Option<Action<Message>>

Updates the State of the Program.

fn draw( &self, state: &WheelState, renderer: &Renderer, _theme: &Theme, bounds: Rectangle, _cursor: Cursor, ) -> Vec<Geometry>

Draws the state of the Program, producing a bunch of Geometry.

fn mouse_interaction( &self, state: &WheelState, bounds: Rectangle, cursor: Cursor, ) -> Interaction

Returns the current mouse interaction of the Program.