Struct CommandList 

pub struct CommandList { /* private fields */ }

Ordered list of drawing commands. Z-order is list position (later = on top). Backends consume the list via CommandSink::submit.

Implementations

impl CommandList

pub fn new() -> Self

Create an empty command list.

pub fn push(&mut self, cmd: Cmd)

Append a command. Z-order is list position.

pub fn len(&self) -> usize

Number of commands in the list.

pub fn is_empty(&self) -> bool

Whether the list contains no commands.

pub fn iter(&self) -> Iter<'_, Cmd>

Iterate over commands in z-order (back to front).

pub fn clear(&mut self)

Drop all commands. Reuses the internal allocation.

pub fn replay<R: Renderer + ?Sized>(&self, r: &mut R)

Replay every command on r via Cmd::dispatch_to. This is the “default-dispatch” execution semantics — backends that want optimization implement CommandSink directly on themselves.

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

Union AABB of all drawing commands’ write regions, computed via Cmd::aabb. Returns None if the list contains no draw cmds or only cmds with unknown bboxes (text).

Trait Implementations

impl Clone for CommandList

fn clone(&self) -> CommandList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CommandList

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

Formats the value using the given formatter.

impl Default for CommandList

fn default() -> CommandList

Returns the “default value” for a type.