From c23136a5df7bc4c4e7f43785088985a1b63f8daf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A9ctor=20Ram=C3=B3n=20Jim=C3=A9nez?=
 <hector0193@gmail.com>
Date: Thu, 26 Nov 2020 03:33:08 +0100
Subject: [PATCH] Account for empty ranges in `Slider` and `ProgressBar`

---
 graphics/src/widget/progress_bar.rs |  9 ++++++---
 graphics/src/widget/slider.rs       | 12 ++++++++----
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/graphics/src/widget/progress_bar.rs b/graphics/src/widget/progress_bar.rs
index 4105a1aa..32ee42c6 100644
--- a/graphics/src/widget/progress_bar.rs
+++ b/graphics/src/widget/progress_bar.rs
@@ -31,10 +31,13 @@ where
         style_sheet: &Self::Style,
     ) -> Self::Output {
         let style = style_sheet.style();
-
         let (range_start, range_end) = range.into_inner();
-        let active_progress_width = bounds.width
-            * ((value - range_start) / (range_end - range_start).max(f32::EPSILON)).max(0.0).min(1.0);
+
+        let active_progress_width = if range_start >= range_end {
+            0.0
+        } else {
+            bounds.width * (value - range_start) / (range_end - range_start)
+        };
 
         let background = Primitive::Group {
             primitives: vec![Primitive::Quad {
diff --git a/graphics/src/widget/slider.rs b/graphics/src/widget/slider.rs
index 87780d38..aeceec3f 100644
--- a/graphics/src/widget/slider.rs
+++ b/graphics/src/widget/slider.rs
@@ -72,8 +72,6 @@ where
             },
         );
 
-        let (range_start, range_end) = range.into_inner();
-
         let (handle_width, handle_height, handle_border_radius) = match style
             .handle
             .shape
@@ -87,8 +85,14 @@ where
             } => (f32::from(width), f32::from(bounds.height), border_radius),
         };
 
-        let handle_offset = (bounds.width - handle_width)
-            * ((value - range_start) / (range_end - range_start).max(f32::EPSILON)).max(0.0).min(1.0);
+        let (range_start, range_end) = range.into_inner();
+
+        let handle_offset = if range_start >= range_end {
+            0.0
+        } else {
+            (bounds.width - handle_width) * (value - range_start)
+                / (range_end - range_start)
+        };
 
         let handle = Primitive::Quad {
             bounds: Rectangle {