host_app2/
host_app2.rs

1//! Minimal host application demonstrating embedding as a library.
2//!
3//! Run with:
4//! `cargo run --example host_app`
5
6use kithe_plot::model::DataSource;
7use kithe_plot::PlotEditorApp;
8
9/// Simple in-memory data source owned by host app.
10struct HostDataSource {
11    names: Vec<String>,
12    cols: Vec<Vec<f64>>,
13}
14
15impl HostDataSource {
16    fn demo() -> Self {
17        let x: Vec<f64> = (0..300).map(|i| i as f64 / 20.0).collect();
18        let y1: Vec<f64> = x.iter().map(|v| v.sin()).collect();
19        let y2: Vec<f64> = x.iter().map(|v| (v / 2.0).cos()).collect();
20        Self {
21            names: vec!["x".to_owned(), "sin(x)".to_owned(), "cos(x/2)".to_owned()],
22            cols: vec![x, y1, y2],
23        }
24    }
25}
26
27impl DataSource for HostDataSource {
28    fn column(&self, name: &str) -> Option<Vec<f64>> {
29        self.names
30            .iter()
31            .position(|n| n == name)
32            .map(|idx| self.cols[idx].clone())
33    }
34
35    fn column_names(&self) -> Vec<String> {
36        self.names.clone()
37    }
38
39    fn len(&self) -> usize {
40        self.cols.first().map(|c| c.len()).unwrap_or(0)
41    }
42}
43
44fn main() -> Result<(), eframe::Error> {
45    let source = HostDataSource::demo();
46    let native_options = eframe::NativeOptions::default();
47    eframe::run_native(
48        "Host App + Embedded Plot Redactor",
49        native_options,
50        Box::new(move |cc| {
51            cc.egui_ctx.set_visuals(eframe::egui::Visuals::light());
52            let mut app = PlotEditorApp::new();
53            app.controller_mut()
54                .load_from_data_source(&source)
55                .expect("failed to load host data source");
56            Ok(Box::new(app))
57        }),
58    )
59}
host_app2/host_app2.rs

host_app2/
host_app2.rs
