initial commit

src/controller/mod.rs

@@ -0,0 +1,42 @@
+use crate::DynResult;
+
+use crate::dial_device::{DialDevice, DialEventKind};
+
+pub mod controls;
+
+pub trait ControlMode {
+    fn on_btn_press(&mut self) -> DynResult<()>;
+    fn on_btn_release(&mut self) -> DynResult<()>;
+    fn on_dial(&mut self, delta: i32) -> DynResult<()>;
+}
+
+pub struct DialController {
+    device: DialDevice,
+
+    mode: Box<dyn ControlMode>,
+}
+
+impl DialController {
+    pub fn new(device: DialDevice, default_mode: Box<dyn ControlMode>) -> DialController {
+        DialController {
+            mode: default_mode,
+
+            device,
+        }
+    }
+
+    pub fn run(&mut self) -> DynResult<()> {
+        loop {
+            let evt = self.device.next_event()?;
+
+            // TODO: press and hold + rotate to switch between modes
+
+            match evt.kind {
+                DialEventKind::Ignored => {}
+                DialEventKind::ButtonPress => self.mode.on_btn_press()?,
+                DialEventKind::ButtonRelease => self.mode.on_btn_release()?,
+                DialEventKind::Dial(delta) => self.mode.on_dial(delta)?,
+            }
+        }
+    }
+}