From 4ee34fe43a1a960f9a806faae2c65d5f0643c412 Mon Sep 17 00:00:00 2001
From: Drakulix <github@drakulix.de>
Date: Tue, 13 Mar 2018 17:53:10 +0100
Subject: [PATCH] Fix winit transformed input for negative positions

---
 src/backend/winit.rs | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/src/backend/winit.rs b/src/backend/winit.rs
index f5f0d04..ccf3acd 100644
--- a/src/backend/winit.rs
+++ b/src/backend/winit.rs
@@ -360,21 +360,27 @@ impl PointerMotionAbsoluteEvent for WinitMouseMovedEvent {
     }
 
     fn x_transformed(&self, width: u32) -> u32 {
-        (self.x * width as f64
-            / self.window
-                .window()
-                .get_inner_size()
-                .unwrap_or((width, 0))
-                .0 as f64) as u32
+        cmp::max(
+            (self.x * width as f64
+                / self.window
+                    .window()
+                    .get_inner_size()
+                    .unwrap_or((width, 0))
+                    .0 as f64) as i32,
+            0,
+        ) as u32
     }
 
     fn y_transformed(&self, height: u32) -> u32 {
-        (self.y * height as f64
-            / self.window
-                .window()
-                .get_inner_size()
-                .unwrap_or((0, height))
-                .1 as f64) as u32
+        cmp::max(
+            (self.y * height as f64
+                / self.window
+                    .window()
+                    .get_inner_size()
+                    .unwrap_or((0, height))
+                    .1 as f64) as i32,
+            0,
+        ) as u32
     }
 }