visi_core/core/chart.rs
1use serde::{Deserialize, Serialize};
2
3/// The chart shapes visi can read and write.
4#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
5pub enum ChartType {
6 /// Vertical bars.
7 Column,
8 /// Horizontal bars.
9 Bar,
10 /// Points joined by lines.
11 Line,
12 /// A pie, from a single series.
13 Pie,
14 /// X/Y points, taking the first column as the x values.
15 Scatter,
16 /// A line chart with the area beneath it filled.
17 Area,
18}
19
20/// A chart over a range of cells.
21///
22/// Workbook-level rather than sheet-scoped: `WorkbookManager::charts` owns
23/// these, and which worksheet a chart is drawn on comes from `data_range`'s
24/// sheet prefix.
25#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
26pub struct Chart {
27 /// Workbook-unique identifier, stable across renames.
28 pub id: u64,
29 /// Display name.
30 pub name: String,
31 /// What shape to draw.
32 pub chart_type: ChartType,
33 /// The source cells, in A1 notation with a sheet prefix
34 /// (`"table_1!A1:B10"`). The prefix also decides which worksheet the
35 /// chart is anchored to.
36 pub data_range: String,
37 /// Chart title, if it has one.
38 pub title: Option<String>,
39 /// X-axis label, if it has one.
40 pub xlabel: Option<String>,
41 /// Y-axis label, if it has one.
42 pub ylabel: Option<String>,
43 /// Whether to draw a legend.
44 pub show_legend: bool,
45 /// 0-based row/col of the cell the chart's top-left corner is anchored
46 /// to on its worksheet (which worksheet that is comes from
47 /// `data_range`'s sheet/table prefix, same as today).
48 #[serde(default)]
49 pub anchor_row: usize,
50 /// Column half of that anchor; see [`Chart::anchor_row`].
51 #[serde(default)]
52 pub anchor_col: usize,
53}