add scroll deadzone setting

src/window/settings.rs

@@ -9,6 +9,7 @@ pub struct WindowSettings {
     pub transparency: f32,
     pub fullscreen: bool,
     pub iso_layout: bool,
+    pub scroll_dead_zone: f32,
 }
 
 impl Default for WindowSettings {
@@ -22,6 +23,7 @@ impl Default for WindowSettings {
                 .get::<CmdLineSettings>()
                 .neovim_args
                 .contains(&String::from("--noIdle")),
+            scroll_dead_zone: 0.0,
         }
     }
 }

src/window/window_wrapper/mod.rs

@@ -231,13 +231,14 @@ impl GlutinWindowWrapper {
     }
 
     pub fn handle_mouse_wheel(&mut self, x: f32, y: f32) {
+        let scroll_dead_zone = SETTINGS.get::<WindowSettings>().scroll_dead_zone;
         if !self.mouse_enabled {
             return;
         }
 
         let vertical_input_type = match y {
-            _ if y > 1.8 => Some("up"),
+            _ if y > scroll_dead_zone => Some("up"),
-            _ if y < -1.8 => Some("down"),
+            _ if y < -scroll_dead_zone => Some("down"),
             _ => None,
         };
 
@@ -252,8 +253,8 @@ impl GlutinWindowWrapper {
         }
 
         let horizontal_input_type = match x {
-            _ if x > 1.8 => Some("right"),
+            _ if x > scroll_dead_zone => Some("right"),
-            _ if x < -1.8 => Some("left"),
+            _ if x < -scroll_dead_zone => Some("left"),
             _ => None,
         };