Switch to WheelHiRes. Add horizontal scrolling (#171)

* Switch to HiResScroll. Add horizontal scrolling

* Fix OpenVR compilation for horizontal scrolling

* fix OpenXR scroll using x axis for both scroll axes

src/overlays/keyboard.rs

@@ -516,9 +516,10 @@ impl InteractionHandler for KeyboardBackend {
         &mut self,
         app: &mut AppState,
         hit: &crate::backend::input::PointerHit,
-        delta: f32,
+        delta_y: f32,
+        delta_x: f32,
     ) {
-        self.canvas.on_scroll(app, hit, delta)
+        self.canvas.on_scroll(app, hit, delta_y, delta_x)
     }
     fn on_left(&mut self, app: &mut AppState, pointer: usize) {
         self.canvas.on_left(app, pointer)

src/overlays/screen.rs

@@ -88,7 +88,6 @@ fn set_next_move(millis_from_now: u64) {
 }
 
 pub struct ScreenInteractionHandler {
-    next_scroll: Instant,
     mouse_transform: Affine2,
 }
 impl ScreenInteractionHandler {
@@ -113,7 +112,6 @@ impl ScreenInteractionHandler {
         };
 
         ScreenInteractionHandler {
-            next_scroll: Instant::now(),
             mouse_transform: transform,
         }
     }
@@ -152,19 +150,8 @@ impl InteractionHandler for ScreenInteractionHandler {
         let pos = self.mouse_transform.transform_point2(hit.uv);
         app.hid_provider.mouse_move(pos);
     }
-    fn on_scroll(&mut self, app: &mut AppState, hit: &PointerHit, delta: f32) {
-        if self.next_scroll > Instant::now() {
-            return;
-        }
-        let max_millis = if matches!(hit.mode, PointerMode::Left) {
-            200.0
-        } else {
-            100.0
-        };
-
-        let millis = (1. - delta.abs()) * max_millis;
-        self.next_scroll = Instant::now().add(Duration::from_millis(millis as _));
-        app.hid_provider.wheel(if delta < 0. { -1 } else { 1 })
+    fn on_scroll(&mut self, app: &mut AppState, _hit: &PointerHit, delta_y: f32, delta_x: f32) {
+        app.hid_provider.wheel((delta_y*64.) as i32, (delta_x*64.) as i32)
     }
     fn on_left(&mut self, _app: &mut AppState, _hand: usize) {}
 }

src/overlays/wayvr.rs

@@ -153,13 +153,13 @@ impl InteractionHandler for WayVRInteractionHandler {
         }
     }
 
-    fn on_scroll(&mut self, _app: &mut state::AppState, _hit: &input::PointerHit, delta: f32) {
+    fn on_scroll(&mut self, _app: &mut state::AppState, _hit: &input::PointerHit, delta_y: f32, delta_x: f32) {
         let ctx = self.context.borrow();
         ctx.wayvr
             .borrow_mut()
             .data
             .state
-            .send_mouse_scroll(ctx.display, delta);
+            .send_mouse_scroll(ctx.display, delta_y, delta_x);
     }
 }