openpine_vm/
draw_event.rs

1use serde::{Deserialize, Serialize};
2
3use crate::visuals::SeriesGraphId;
4
5/// A drawing event emitted during VM execution.
6///
7/// These events describe visual operations that occur as the script runs.
8/// In [`OutputMode::Stream`](crate::OutputMode::Stream) mode, native functions
9/// emit `DrawEvent` variants instead of updating the
10/// [`Chart`](crate::visuals::Chart) directly.
11#[derive(Debug, Clone, Serialize, Deserialize)]
12pub enum DrawEvent {
13    /// A new `plot()` series was registered (first bar only).
14    AddPlot {
15        /// The compile-time series graph id.
16        id: SeriesGraphId,
17        /// The plot title, if provided.
18        title: Option<String>,
19    },
20
21    /// A `plot()` value was emitted for the current bar.
22    UpdatePlot {
23        /// The compile-time series graph id.
24        id: SeriesGraphId,
25        /// Zero-based bar index.
26        bar_index: usize,
27        /// The bar's epoch-millisecond timestamp.
28        timestamp: i64,
29        /// The plotted value (`None` means `na`).
30        value: Option<f64>,
31    },
32}
openpine_vm/draw_event.rs

openpine_vm/
draw_event.rs
