Enum DrawOp 

pub enum DrawOp {
    Quad {
        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        shader: ShaderHandle,
        uniforms: UniformBlock,
    },
    GlyphRun {

        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        shader: ShaderHandle,
        color: Color,
        text: String,
        size: f32,
        line_height: f32,
        family: FontFamily,
        mono_family: FontFamily,
        weight: FontWeight,
        mono: bool,
        wrap: TextWrap,
        anchor: TextAnchor,
        layout: TextLayout,
        underline: bool,
        strikethrough: bool,
        link: Option<String>,
    
},
    AttributedText {
        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        shader: ShaderHandle,
        runs: Vec<(String, RunStyle)>,
        size: f32,
        line_height: f32,
        wrap: TextWrap,
        anchor: TextAnchor,
        layout: TextLayout,
    },
    Icon {
        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        source: IconSource,
        color: Color,
        size: f32,
        stroke_width: f32,
    },
    Image {
        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        image: Image,
        tint: Option<Color>,
        radius: Corners,
        fit: ImageFit,
    },
    AppTexture {
        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        texture: AppTexture,
        alpha: SurfaceAlpha,
        fit: ImageFit,
        transform: Affine2,
    },
    Vector {
        id: String,
        rect: Rect,
        scissor: Option<Rect>,
        asset: Arc<VectorAsset>,
        render_mode: VectorRenderMode,
    },
    BackdropSnapshot,
}

One paint operation in the laid-out frame.

Variants

Quad

A rectangular region painted by a shader (typically stock::rounded_rect, but custom shaders also emit Quad).

Fields

id: String

rect: Rect

scissor: Option<Rect>

shader: ShaderHandle

uniforms: UniformBlock

GlyphRun

A run of text. The draw op carries the author text and measured layout; backends shape/rasterize through the shared glyph atlas path.

Fields

id: String

rect: Rect

scissor: Option<Rect>

shader: ShaderHandle

color: Color

Carried explicitly on the op for SVG fallback and backend text shaping.

text: String

size: f32

line_height: f32

family: FontFamily

mono_family: FontFamily

Monospace face used when mono is set. Stamped from the source El’s mono_font_family (themed via Theme::mono_font_family).

weight: FontWeight

mono: bool

wrap: TextWrap

anchor: TextAnchor

layout: TextLayout

underline: bool

Underline / strikethrough state lifted from the source El’s text_underline / text_strikethrough. Backends fold them into the synthesized RunStyle before shaping so the decoration pass in crate::text::atlas runs uniformly for standalone leaves and attributed paragraphs.

strikethrough: bool

link: Option<String>

Optional link URL from the El’s text_link. Carried for future hit-test work; today it just pins color + underline via RunStyle::with_link.

AttributedText

An attributed paragraph: a sequence of styled runs that flow together inside one rect. The runtime hands runs straight to crate::text::atlas::GlyphAtlas::shape_and_rasterize_runs so wrapping decisions cross run boundaries (real prose, not glued segments). layout is an approximate pre-shaping measurement from text::metrics — backends shape for accurate placement; SVG uses it to lay tspan baselines.

Fields

id: String

rect: Rect

scissor: Option<Rect>

shader: ShaderHandle

runs: Vec<(String, RunStyle)>

Source-order styled spans. Each String may contain embedded \n to express in-paragraph hard breaks.

size: f32

line_height: f32

wrap: TextWrap

anchor: TextAnchor

layout: TextLayout

Icon

A vector icon scaled into rect. The source is either a built-in crate::tree::IconName (24x24 lucide-style) or an app-supplied crate::SvgIcon. SVG bundle output renders the vector paths directly; wgpu/vulkano backends bake an MTSDF (or tessellate for non-flat materials); backends without a native vector painter fall back to a glyph for built-ins.

Fields

id: String

rect: Rect

scissor: Option<Rect>

source: IconSource

color: Color

size: f32

stroke_width: f32

Image

A raster image painted into rect. The image carries the pixel data (Arc-shared with the source El) and is keyed by image.content_hash() in backend texture caches. rect is the post-fit destination; for Cover it can extend past the El’s content area and is clipped via scissor. SVG bundle output emits a placeholder rect labelled with the image’s hash.

Fields

id: String

rect: Rect

scissor: Option<Rect>

image: Image

tint: Option<Color>

radius: Corners

fit: ImageFit

AppTexture

An app-owned GPU texture composited into the paint stream. Unlike DrawOp::Image, the backend does not upload pixels — it samples the existing texture identified by texture during paint, keying its bind-group cache on crate::surface::AppTextureId. rect is the post-fit destination rect; for Cover it can extend past the El’s content area and is clipped via scissor. transform is an affine applied to the textured quad in destination space, around the centre of rect. alpha selects the blend path. SVG bundle output emits a placeholder rect labelled with the texture’s id.

Fields

id: String

rect: Rect

scissor: Option<Rect>

texture: AppTexture

alpha: SurfaceAlpha

fit: ImageFit

transform: Affine2

Vector

An app-supplied vector asset. render_mode decides whether the backend preserves authored paint or treats the asset as a one-colour mask. SVG bundle output emits a placeholder rect labelled with the asset’s hash.

Fields

id: String

rect: Rect

scissor: Option<Rect>

asset: Arc<VectorAsset>

render_mode: VectorRenderMode

BackdropSnapshot

Mid-frame snapshot of the current target into a sampled texture, scheduled before any backdrop-sampling pass.

Implementations

impl DrawOp

pub fn id(&self) -> &str

pub fn shader(&self) -> Option<&ShaderHandle>

pub fn scissor(&self) -> Option<Rect>

Trait Implementations

impl Clone for DrawOp

fn clone(&self) -> DrawOp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DrawOp

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

Formats the value using the given formatter.