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34 lines
1.0 KiB
Rust
34 lines
1.0 KiB
Rust
use epaint::Pos2;
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use crate::{Context, Id};
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use super::{transform::ScreenTransform, AxisBools};
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/// Information about the plot that has to persist between frames.
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#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
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#[derive(Clone)]
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pub(super) struct PlotMemory {
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/// Indicates if the user has modified the bounds, for example by moving or zooming,
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/// or if the bounds should be calculated based by included point or auto bounds.
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pub(super) bounds_modified: AxisBools,
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pub(super) hovered_entry: Option<String>,
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pub(super) hidden_items: ahash::HashSet<String>,
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pub(super) last_screen_transform: ScreenTransform,
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/// Allows to remember the first click position when performing a boxed zoom
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pub(super) last_click_pos_for_zoom: Option<Pos2>,
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}
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impl PlotMemory {
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pub fn load(ctx: &Context, id: Id) -> Option<Self> {
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ctx.data().get_persisted(id)
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}
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pub fn store(self, ctx: &Context, id: Id) {
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ctx.data().insert_persisted(id, self);
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}
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}
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