From 367bad82222e6962207f1c907f1746a7ccaeb2b9 Mon Sep 17 00:00:00 2001
From: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Date: Fri, 26 Jan 2024 13:03:24 +0100
Subject: [PATCH] Clean up plot demo slightly

---
 crates/egui_demo_lib/src/demo/plot_demo.rs | 28 ++++++++++++----------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/crates/egui_demo_lib/src/demo/plot_demo.rs b/crates/egui_demo_lib/src/demo/plot_demo.rs
index 05dc5921474..edd5215bfb5 100644
--- a/crates/egui_demo_lib/src/demo/plot_demo.rs
+++ b/crates/egui_demo_lib/src/demo/plot_demo.rs
@@ -530,25 +530,27 @@ impl CustomAxesDemo {
             100.0 * y
         }
 
-        let x_fmt = |x: GridMark, _digits, _range: &RangeInclusive<f64>| {
-            let x = x.value;
-            if x < 0.0 * MINS_PER_DAY || x >= 5.0 * MINS_PER_DAY {
+        let time_formatter = |mark: GridMark, _digits, _range: &RangeInclusive<f64>| {
+            let minutes = mark.value;
+            if minutes < 0.0 || 5.0 * MINS_PER_DAY <= minutes {
                 // No labels outside value bounds
                 String::new()
-            } else if is_approx_integer(x / MINS_PER_DAY) {
+            } else if is_approx_integer(minutes / MINS_PER_DAY) {
                 // Days
-                format!("Day {}", day(x))
+                format!("Day {}", day(minutes))
             } else {
                 // Hours and minutes
-                format!("{h}:{m:02}", h = hour(x), m = minute(x))
+                format!("{h}:{m:02}", h = hour(minutes), m = minute(minutes))
             }
         };
 
-        let y_fmt = |y: GridMark, _digits, _range: &RangeInclusive<f64>| {
-            let y = y.value;
-            // Display only integer percentages
-            if !is_approx_zero(y) && is_approx_integer(100.0 * y) {
-                format!("{:.0}%", percent(y))
+        let percentage_formatter = |mark: GridMark, _digits, _range: &RangeInclusive<f64>| {
+            let percent = 100.0 * mark.value;
+            if is_approx_zero(percent) {
+                String::new() // skip zero
+            } else if is_approx_integer(percent) {
+                // Display only integer percentages
+                format!("{percent:.0}%")
             } else {
                 String::new()
             }
@@ -567,13 +569,13 @@ impl CustomAxesDemo {
         ui.label("Zoom in on the X-axis to see hours and minutes");
 
         let x_axes = vec![
-            AxisHints::new_x().label("Time").formatter(x_fmt),
+            AxisHints::new_x().label("Time").formatter(time_formatter),
             AxisHints::new_x().label("Value"),
         ];
         let y_axes = vec![
             AxisHints::new_y()
                 .label("Percent")
-                .formatter(y_fmt)
+                .formatter(percentage_formatter)
                 .max_digits(4),
             AxisHints::new_y()
                 .label("Absolute")