Enum CanvasFrameItem 

pub enum CanvasFrameItem {
    Shader(ShaderQuadCmd),
    Segment {
        x: u32,
        y: u32,
        w: u32,
        h: u32,
        pixels: Vec<u8>,
    },
    Glyphs {
        glyphs: Vec<GlyphQuad>,
        clip: Option<(f32, f32, f32, f32)>,
    },
    Image {
        key: u64,
        pixels: ImagePixels,
        src_w: u32,
        src_h: u32,
        dest: (f32, f32, f32, f32),
        opacity: f32,
        clip: Option<(f32, f32, f32, f32)>,
    },
    Backdrop {
        rect: (f32, f32, f32, f32),
        radius: f32,
        blur: f32,
        tint: [u8; 4],
    },
}

One item of a GPU-mode frame, in z-order (D109 C1): a GPU shape quad, a CPU-rasterized segment (bbox-sized premultiplied-RGBA buffer cut out of the scratch pixmap), a batch of atlas glyphs (Step 4), or an image drawn from the compositor’s texture cache (uploaded on first sight of key).

Variants

Shader(ShaderQuadCmd)

Segment

Fields

x: u32

y: u32

w: u32

h: u32

pixels: Vec<u8>

Glyphs

Fields

glyphs: Vec<GlyphQuad>

clip: Option<(f32, f32, f32, f32)>

Image

Fields

key: u64

pixels: ImagePixels

src_w: u32

src_h: u32

dest: (f32, f32, f32, f32)

Dest rect (x, y, w, h), physical px.

opacity: f32

clip: Option<(f32, f32, f32, f32)>

Backdrop

Frosted-glass panel (D-DEF-012): the compositor blurs everything drawn before this item within rect and draws a tinted rounded panel over it. All physical px; tint is sRGB straight-alpha.

Fields

rect: (f32, f32, f32, f32)

radius: f32

blur: f32

tint: [u8; 4]

Trait Implementations

impl Clone for CanvasFrameItem

fn clone(&self) -> CanvasFrameItem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CanvasFrameItem

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

Formats the value using the given formatter.

impl PartialEq for CanvasFrameItem

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CanvasFrameItem