Enum RefreshMode 

pub enum RefreshMode {
    Fast,
    Full,
    Partial,
    Gray2,
}

The refresh mode for the display.

Variants

Fast

Refreshes the entire display. This is slower than RefreshMode::Partial, but should be done occasionally to avoid ghosting. If ghosting persists, try RefreshMode::Full.

It’s recommended to avoid full refreshes less than RECOMMENDED_MIN_FULL_REFRESH_INTERVAL apart, but to do a full refresh at least every RECOMMENDED_MAX_FULL_REFRESH_INTERVAL.

Full

A slower full update that gives a cleaner final image.

It’s recommended to avoid full refreshes less than RECOMMENDED_MIN_FULL_REFRESH_INTERVAL apart, but to do a full refresh at least every RECOMMENDED_MAX_FULL_REFRESH_INTERVAL.

Partial

Changes only specific areas of the screen with no flickering. A fast/full refresh should be done occasionally to avoid ghosting, see RECOMMENDED_MAX_FULL_REFRESH_INTERVAL.

It diffs the current framebuffer against the previous framebuffer, and just updates the pixels that differ.

Gray2

A refresh mode that supports 2-bit grayscale. Note that Waveshare calls this “Gray4”, but we use Gray2 to align with the embedded-graphics color embedded_graphics::pixelcolor::Gray2.

There is no partial update version for Gray2. All updates require writing to both on-device framebuffers.

Implementations

impl RefreshMode

pub fn is_black_and_white(&self) -> bool

If this refresh mode is black and white only.

Trait Implementations

impl Clone for RefreshMode

fn clone(&self) -> RefreshMode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for RefreshMode

impl Debug for RefreshMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for RefreshMode

impl PartialEq for RefreshMode

fn eq(&self, other: &RefreshMode) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RefreshMode