Struct ContentMask 

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

The visible region of the window, which clips what is painted and hit-tested.

Anything outside the mask isn’t rendered or receives input. Only rectangular masks are supported. The fade_out distances fade the content toward each edge, which scroll containers use to show that more content is available. Fades are measured in window space and ignore transforms.

GPUI sets the mask with Window::with_content_mask and reads it with Window::content_mask.

Fields

bounds: Bounds<P>

The rectangle that stays visible.

fade_out: Edges<P>

The distance over which content fades out at each edge of bounds.

A zero distance leaves that edge fully opaque.

Implementations

impl ContentMask<Pixels>

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

Returns this mask in ScaledPixels, with every value multiplied by factor.

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

Returns the region visible through both this mask and other.

For each edge, the mask that actually clips at that edge contributes its fade; when both masks clip at the same coordinate, the stronger fade wins.

Trait Implementations

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

fn clone(&self) -> Self

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() -> Self

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: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

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