Struct ProxyChain 

pub struct ProxyChain {
    pub source_path: String,
    /* private fields */
}

Multi-resolution proxy chain for zoom-dependent switching.

Fields

source_path: String

Original source path.

Implementations

impl ProxyChain

pub fn new(source_path: String) -> Self

Create a new proxy chain for a given source.

pub fn add_level( &mut self, resolution: ProxyResolution, proxy_path: PathBuf, scale: f64, )

Add a resolution level.

pub fn select_for_zoom(&self, zoom: f64) -> Option<&ProxyChainEntry>

Select the best proxy for a given zoom level (0.0–1.0 where 1.0 = full res).

Returns the entry whose scale is >= zoom that is ready, or falls back to the highest-resolution ready entry.

pub fn mark_ready_by_scale(&mut self, scale: f64) -> bool

Mark a level as ready by scale.

pub fn level_count(&self) -> usize

Number of levels.

pub fn ready_level_count(&self) -> usize

Number of ready levels.

pub fn entries(&self) -> &[ProxyChainEntry]

Get all entries.

Trait Implementations

impl Clone for ProxyChain

fn clone(&self) -> ProxyChain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProxyChain

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

Formats the value using the given formatter.