Struct ContentMask 

#[repr(C)]
pub struct ContentMask<P: Clone + Debug + Default + PartialEq> {
    pub bounds: Bounds<P>,
    pub corner_radii: Corners<P>,
}

Indicates which region of the window is visible. Content falling outside of this mask will not be rendered. A mask is a rectangle with optional corner radii, so a child of a rounded box is clipped to the shape rather than to its bounding box.

Fields

bounds: Bounds<P>

The bounds

corner_radii: Corners<P>

The corners the mask is rounded at, clipping children to the shape rather than to bounds. All zero is a plain rectangle.

Implementations

impl<P: Clone + Debug + Default + PartialEq> ContentMask<P>

pub fn new(bounds: Bounds<P>) -> Self

A plain rectangular mask, the shape every mask had before corners.

impl ContentMask<Pixels>

pub fn scale(&self, factor: f32) -> ContentMask<ScaledPixels>

Scale the content mask’s pixel units by the given scaling factor.

pub fn intersect(&self, other: &Self) -> Self

Intersect the content mask with the given content mask.

Two rounded rectangles do not intersect to a rounded rectangle, so only the nested case — one mask wholly inside the other — keeps its corners: whichever mask the intersection is supplies them. That covers every mask a layout nests, and a genuine partial overlap of two rounded masks falls back to the square intersection rather than inventing a shape.

Trait Implementations

impl<P: Clone + Clone + Debug + Default + PartialEq> Clone for ContentMask<P>

fn clone(&self) -> ContentMask<P>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<P: Copy + Clone + Debug + Default + PartialEq> Copy for ContentMask<P>

impl<P: Debug + Clone + Debug + Default + PartialEq> Debug for ContentMask<P>

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

Formats the value using the given formatter.

impl<P: Default + Clone + Debug + Default + PartialEq> Default for ContentMask<P>

fn default() -> ContentMask<P>

Returns the “default value” for a type.

impl<P: Eq + Clone + Debug + Default + PartialEq> Eq for ContentMask<P>

impl<P: PartialEq + Clone + Debug + Default + PartialEq> PartialEq for ContentMask<P>

fn eq(&self, other: &ContentMask<P>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<P: PartialEq + Clone + Debug + Default + PartialEq> StructuralPartialEq for ContentMask<P>