Trait piston::MouseScrollEvent

pub trait MouseScrollEvent: Sized {
    // Required methods
    fn from_pos(pos: [f64; 2], old_event: &Self) -> Option<Self>;
    fn mouse_scroll<U, F>(&self, f: F) -> Option<U>
       where F: FnMut([f64; 2]) -> U;

    // Provided method
    fn mouse_scroll_args(&self) -> Option<[f64; 2]> { ... }
}

The scroll of the mouse wheel.

Required Methods

fn from_pos(pos: [f64; 2], old_event: &Self) -> Option<Self>

Creates a mouse scroll event.

Preserves time stamp from original input event, if any.

fn mouse_scroll<U, F>(&self, f: F) -> Option<U>where F: FnMut([f64; 2]) -> U,

Calls a closure if this is a mouse scroll event.

Provided Methods

fn mouse_scroll_args(&self) -> Option<[f64; 2]>

Returns mouse scroll arguments.

Object Safety

This trait is not object safe.

Implementors

impl MouseScrollEvent for Event