Struct ScreenerPanel 

pub struct ScreenerPanel { /* private fields */ }

A screener fed by the host’s Datafeed::screen.

The host gives the column sets; the user picks one, adds filters on its columns and sorts by a column by clicking its heading. With set_universes the user also picks the market to screen, and with set_text_query describes the screen in words, which the feed interprets in Datafeed::screen_text and explains above the rows. set_storage lets the user save, rename, load and delete named screens. Each change asks the feed again, which filters, sorts and limits, and only the answer to the latest request is shown. A full answer offers the next page of the same screen. The chosen criteria stay through loading, failures, paging and export. Call poll each frame, then show while the panel is open.

Implementations

impl ScreenerPanel

pub fn new(sets: Vec<ScreenerColumnSet>) -> Self

A screener of sets, showing the first, without a feed.

pub fn set_feed(&mut self, feed: Arc<dyn Datafeed>)

Ask feed for rows from now on, starting at once.

pub fn set_universes(&mut self, universes: Vec<ScreenerUniverse>)

Offer universes as the markets to screen, the first at first. The chosen one stays chosen while it is still offered.

pub fn set_text_query(&mut self, enabled: bool)

Offer a field to describe the screen in words, which the feed interprets in Datafeed::screen_text.

pub fn set_storage(&mut self, storage: Arc<dyn Storage>)

Keep named screens in storage, in StoreKind::Screens. Poll every frame, as the panel is.

pub fn refresh(&mut self)

Ask the feed again, such as when the host’s data changed.

pub fn poll(&mut self, ctx: &Context)

Receive the feed’s answer and wake the UI when the next one arrives.

pub fn show(&mut self, ui: &mut Ui) -> ScreenerAction

Render the filters and the table after poll.