diff options
Diffstat (limited to 'src/events.rs')
| -rw-r--r-- | src/events.rs | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/events.rs b/src/events.rs index 7962706..1103452 100644 --- a/src/events.rs +++ b/src/events.rs @@ -25,11 +25,11 @@ pub enum Event { /// The parameter are the (x,y) coords in pixels relative to the top-left corner of the window. MouseMoved((i32, i32)), - /// Returns the horizontal and vertical mouse scrolling. + /// A mouse wheel or touchpad scroll occurred. Depending on whether the /// /// A positive value indicates that the wheel was rotated forward, away from the user; /// a negative value indicates that the wheel was rotated backward, toward the user. - MouseWheel(f64, f64), + MouseWheel(MouseScrollDelta), /// An event from the mouse has been received. MouseInput(ElementState, MouseButton), @@ -57,6 +57,23 @@ pub enum MouseButton { Other(u8), } +#[derive(Debug, Clone, Copy)] +pub enum MouseScrollDelta { + /// Amount in lines or rows to scroll in the horizontal + /// and vertical directions. + /// + /// Positive values indicate movement forward + /// (away from the user) or righwards. + LineDelta(f32, f32), + /// Amount in pixels to scroll in the horizontal and + /// vertical direction. + /// + /// Scroll events are expressed as a PixelDelta if + /// supported by the device (eg. a touchpad) and + /// platform. + PixelDelta(f32, f32) +} + #[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)] pub enum VirtualKeyCode { /// The '1' key over the letters. |