Enum ImageScaling

pub enum ImageScaling {
    Aspect {
        mode: Aspect,
        orientation: Size<ZeroToOne>,
    },
    Stretch,
    Scale(f32),
}

A scaling strategy for an Image widget.

Variants

Aspect

Scales the image keeping the aspect ratio the same.

Fields

mode: Aspect

The strategy to use to pick a scaling factor.

orientation: Size<ZeroToOne>

The orientation to either crop or align using.

Stretch

The stretch scaling strategy stretches the image to fill the surface, ignoring the aspect ratio.

Scale(f32)

The image will be displayed at a scaling factor of the contained f32. In this mode, the widget will request that its size be the size of the contained image.

Implementations

impl ImageScaling

pub fn layout_size( &self, image_size: Size<UPx>, available_space: Size<ConstraintLimit>, ) -> Size<UPx>

Returns the size that should be occupied given an image size and available space constraints.

pub fn render_area( &self, image_size: Size<UPx>, available_space: Size<UPx>, ) -> Rect<Px>

Returns the area inside of available_space that an image of the given size should be drawn.

Trait Implementations

impl Clone for ImageScaling

fn clone(&self) -> ImageScaling

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ImageScaling

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

Formats the value using the given formatter.

impl Default for ImageScaling

fn default() -> Self

Returns ImageScaling::Scale(1.).

impl PartialEq for ImageScaling

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for ImageScaling

impl StructuralPartialEq for ImageScaling