Enum libnotcurses_sys::NcScale

#[repr(u32)]
#[non_exhaustive]
pub enum NcScale {
    None,
    Scale,
    NoneHiRes,
    ScaleHiRes,
    Stretch,
}

Indicates how to scale an NcVisual during rendering.

Default

NcScale::None

Application

The scaling preferences are applied only for the context of NcVisual.render.

You can think of it as the following pipeline, where you still have the original frame:

NcVisual::from_file() → frame → NcVisual.render() → scaling → output_frame → blit

Whereas NcVisual.resize and NcVisual.resize_noninterpolative are changing that original frame.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Maintains the original size. Will Apply no scaling.

Scale

Maintains the aspect ratio.

Scales an NcVisual to the NcPlane’s size without stretching.

NoneHiRes

Like None, maintains the original size, while admitting high-resolution blitters that don’t preserve the aspect ratio.

ScaleHiRes

Like Scale, maintains the aspect ratio, while admitting high-resolution blitters that don’t preserve the aspect ratio.

Stretch

Throws away aspect ratio.

Stretches and scales the NcVisual in an attempt to fill the entirety of the NcPlane.

Trait Implementations

impl Clone for NcScale

fn clone(&self) -> NcScale

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NcScale

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

Formats the value using the given formatter.

impl Default for NcScale

fn default() -> Self

Returns the “default value” for a type.

impl Display for NcScale

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

Formats the value using the given formatter.

impl From<NcScale> for NcScale_u32

fn from(scale: NcScale) -> Self

Converts to this type from the input type.

impl From<u32> for NcScale

fn from(scale: NcScale_u32) -> Self

Converts to this type from the input type.

impl PartialEq<NcScale> for NcScale

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for NcScale

impl Eq for NcScale

impl StructuralEq for NcScale

impl StructuralPartialEq for NcScale