Enum show_image::event::MouseScrollDelta
source · [−]pub enum MouseScrollDelta {
LineDelta(f32, f32),
PixelDelta(PhysicalPosition<f64>),
}
Expand description
Describes a difference in the mouse scroll wheel state.
Variants
LineDelta(f32, f32)
Amount in lines or rows to scroll in the horizontal and vertical directions.
Positive values indicate that the content that is being scrolled should move right and down (revealing more content left and up).
PixelDelta(PhysicalPosition<f64>)
Amount in pixels to scroll in the horizontal and vertical direction.
Scroll events are expressed as a PixelDelta
if
supported by the device (eg. a touchpad) and
platform.
Positive values indicate that the content being scrolled should move right/down.
For a ‘natural scrolling’ touch pad (that acts like a touch screen) this means moving your fingers right and down should give positive values, and move the content right and down (to reveal more things left and up).
Trait Implementations
sourceimpl Clone for MouseScrollDelta
impl Clone for MouseScrollDelta
sourcefn clone(&self) -> MouseScrollDelta
fn clone(&self) -> MouseScrollDelta
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for MouseScrollDelta
impl Debug for MouseScrollDelta
sourceimpl PartialEq<MouseScrollDelta> for MouseScrollDelta
impl PartialEq<MouseScrollDelta> for MouseScrollDelta
sourcefn eq(&self, other: &MouseScrollDelta) -> bool
fn eq(&self, other: &MouseScrollDelta) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
impl Copy for MouseScrollDelta
impl StructuralPartialEq for MouseScrollDelta
Auto Trait Implementations
impl RefUnwindSafe for MouseScrollDelta
impl Send for MouseScrollDelta
impl Sync for MouseScrollDelta
impl Unpin for MouseScrollDelta
impl UnwindSafe for MouseScrollDelta
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more