From 0490cde55ab8d44f3ae2e9e7e134933a902cb1d1 Mon Sep 17 00:00:00 2001
From: Ygor Souza <ygor.souza@protonmail.com>
Date: Mon, 27 May 2024 17:18:00 +0200
Subject: [PATCH] Use the interact_radius from the UI style on the plot

---
 crates/egui_demo_lib/src/demo/plot_demo.rs | 12 ++++++------
 crates/egui_plot/src/lib.rs                | 18 +-----------------
 2 files changed, 7 insertions(+), 23 deletions(-)

diff --git a/crates/egui_demo_lib/src/demo/plot_demo.rs b/crates/egui_demo_lib/src/demo/plot_demo.rs
index 326fd18edce..e8644ef3ab0 100644
--- a/crates/egui_demo_lib/src/demo/plot_demo.rs
+++ b/crates/egui_demo_lib/src/demo/plot_demo.rs
@@ -133,7 +133,7 @@ struct LineDemo {
     show_axes: bool,
     show_grid: bool,
     line_style: LineStyle,
-    interact_distance: f32,
+    interact_radius: f32,
 }
 
 impl Default for LineDemo {
@@ -149,7 +149,7 @@ impl Default for LineDemo {
             show_axes: true,
             show_grid: true,
             line_style: LineStyle::Solid,
-            interact_distance: 16.0,
+            interact_radius: egui::style::Interaction::default().interact_radius,
         }
     }
 }
@@ -167,7 +167,7 @@ impl LineDemo {
             show_axes,
             show_grid,
             line_style,
-            interact_distance,
+            interact_radius,
         } = self;
 
         ui.horizontal(|ui| {
@@ -201,8 +201,8 @@ impl LineDemo {
                 ui.checkbox(coordinates, "Show coordinates on hover")
                     .on_hover_text("Can take a custom formatting function.");
                 ui.horizontal(|ui| {
-                    ui.add(egui::DragValue::new(interact_distance).clamp_range(0.0..=100.0));
-                    ui.label("Interact distance");
+                    ui.add(egui::DragValue::new(interact_radius).clamp_range(0.0..=100.0));
+                    ui.label("Interact radius");
                 });
             });
 
@@ -285,7 +285,6 @@ impl LineDemo {
         let mut plot = Plot::new("lines_demo")
             .legend(Legend::default())
             .y_axis_width(4)
-            .interact_distance(self.interact_distance)
             .show_axes(self.show_axes)
             .show_grid(self.show_grid);
         if self.square {
@@ -297,6 +296,7 @@ impl LineDemo {
         if self.coordinates {
             plot = plot.coordinates_formatter(Corner::LeftBottom, CoordinatesFormatter::default());
         }
+        ui.style_mut().interaction.interact_radius = self.interact_radius;
         plot.show(ui, |plot_ui| {
             plot_ui.line(self.circle());
             plot_ui.line(self.sin());
diff --git a/crates/egui_plot/src/lib.rs b/crates/egui_plot/src/lib.rs
index 75fdc7a2d4e..6dec9d7276d 100644
--- a/crates/egui_plot/src/lib.rs
+++ b/crates/egui_plot/src/lib.rs
@@ -170,7 +170,6 @@ pub struct Plot<'a> {
 
     show_x: bool,
     show_y: bool,
-    interact_distance: f32,
     label_formatter: LabelFormatter<'a>,
     coordinates_formatter: Option<(Corner, CoordinatesFormatter<'a>)>,
     x_axes: Vec<AxisHints<'a>>, // default x axes
@@ -218,7 +217,6 @@ impl<'a> Plot<'a> {
 
             show_x: true,
             show_y: true,
-            interact_distance: 16.0,
             label_formatter: None,
             coordinates_formatter: None,
             x_axes: vec![AxisHints::new(Axis::X)],
@@ -384,17 +382,6 @@ impl<'a> Plot<'a> {
         self
     }
 
-    /// The snapping distance for hovering an item or plot point
-    ///
-    /// The cursor will snap to the closest item to the pointer if it is closer than this value.
-    ///
-    /// Default: `16.0`
-    #[inline]
-    pub fn interact_distance(mut self, distance: f32) -> Self {
-        self.interact_distance = distance;
-        self
-    }
-
     /// Provide a function to customize the on-hover label for the x and y axis
     ///
     /// ```
@@ -764,7 +751,6 @@ impl<'a> Plot<'a> {
             view_aspect,
             mut show_x,
             mut show_y,
-            interact_distance,
             label_formatter,
             coordinates_formatter,
             x_axes,
@@ -1187,7 +1173,6 @@ impl<'a> Plot<'a> {
             items,
             show_x,
             show_y,
-            interact_distance,
             label_formatter,
             coordinates_formatter,
             show_grid,
@@ -1470,7 +1455,6 @@ struct PreparedPlot<'a> {
     items: Vec<Box<dyn PlotItem>>,
     show_x: bool,
     show_y: bool,
-    interact_distance: f32,
     label_formatter: LabelFormatter<'a>,
     coordinates_formatter: Option<(Corner, CoordinatesFormatter<'a>)>,
     // axis_formatters: [AxisFormatter; 2],
@@ -1682,7 +1666,7 @@ impl<'a> PreparedPlot<'a> {
             return (Vec::new(), None);
         }
 
-        let interact_radius_sq = self.interact_distance.powi(2);
+        let interact_radius_sq = ui.style().interaction.interact_radius.powi(2);
 
         let candidates = items
             .iter()