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Plot auto-bounds API improvement (part 2/2): add API (#3586) 

Part 2 of 2 of adding a better API for egui_plot's auto-bounds feature.

In this PR: add `auto_bounds()`/`set_auto_bounds()` APIs to PlotUI
This commit is contained in:
Antoine Beyeler 2023-11-21 11:56:39 +01:00 committed by GitHub
parent 49eecc4287
commit 05a3c4c0f1
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 1 deletions
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18
crates/egui_plot/src/lib.rs
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@ -854,7 +854,7 @@ impl Plot {
PlotMemory::load(ui.ctx(), plot_id)
}
.unwrap_or_else(|| PlotMemory {
auto_bounds: true.into(),
auto_bounds: default_auto_bounds,
hovered_entry: None,
hidden_items: Default::default(),
last_plot_transform: PlotTransform::new(
@ -879,6 +879,7 @@ impl Plot {
items: Vec::new(),
next_auto_color_idx: 0,
last_plot_transform,
last_auto_bounds: auto_bounds,
response,
bounds_modifications: Vec::new(),
ctx: ui.ctx().clone(),
@ -989,6 +990,7 @@ impl Plot {
bounds.translate(delta);
auto_bounds = false.into();
}
BoundsModification::AutoBounds(new_auto_bounds) => auto_bounds = new_auto_bounds,
}
}
@ -1327,6 +1329,7 @@ fn axis_widgets(
enum BoundsModification {
Set(PlotBounds),
Translate(Vec2),
AutoBounds(Vec2b),
}
/// Provides methods to interact with a plot while building it. It is the single argument of the closure
@ -1335,6 +1338,7 @@ pub struct PlotUi {
items: Vec<Box<dyn PlotItem>>,
next_auto_color_idx: usize,
last_plot_transform: PlotTransform,
last_auto_bounds: Vec2b,
response: Response,
bounds_modifications: Vec<BoundsModification>,
ctx: Context,
@ -1372,6 +1376,18 @@ impl PlotUi {
.push(BoundsModification::Translate(delta_pos));
}
/// Whether the plot axes were in auto-bounds mode in the last frame. If called on the first
/// frame, this is the [`Plot`]'s default auto-bounds mode.
pub fn auto_bounds(&self) -> Vec2b {
self.last_auto_bounds
}
/// Set the auto-bounds mode for the plot axes.
pub fn set_auto_bounds(&mut self, auto_bounds: Vec2b) {
self.bounds_modifications
.push(BoundsModification::AutoBounds(auto_bounds));
}
/// Can be used to check if the plot was hovered or clicked.
pub fn response(&self) -> &Response {
&self.response