Feat: early mouse support

src/state/options.rs

@@ -46,6 +46,44 @@ impl CyclicEnum for OptionsFocus {
     ];
 }
 
+const FOCUS_LINES: &[(OptionsFocus, usize)] = &[
+    (OptionsFocus::ColorScheme, 2),
+    (OptionsFocus::HueRotation, 3),
+    (OptionsFocus::RefreshRate, 4),
+    (OptionsFocus::RuntimeHighlight, 5),
+    (OptionsFocus::ShowScope, 6),
+    (OptionsFocus::ShowSpectrum, 7),
+    (OptionsFocus::ShowCompletion, 8),
+    (OptionsFocus::LinkEnabled, 12),
+    (OptionsFocus::StartStopSync, 13),
+    (OptionsFocus::Quantum, 14),
+    (OptionsFocus::MidiOutput0, 24),
+    (OptionsFocus::MidiOutput1, 25),
+    (OptionsFocus::MidiOutput2, 26),
+    (OptionsFocus::MidiOutput3, 27),
+    (OptionsFocus::MidiInput0, 31),
+    (OptionsFocus::MidiInput1, 32),
+    (OptionsFocus::MidiInput2, 33),
+    (OptionsFocus::MidiInput3, 34),
+];
+
+impl OptionsFocus {
+    pub fn line_index(self) -> usize {
+        FOCUS_LINES
+            .iter()
+            .find(|(f, _)| *f == self)
+            .map(|(_, l)| *l)
+            .unwrap_or(0)
+    }
+
+    pub fn at_line(line: usize) -> Option<OptionsFocus> {
+        FOCUS_LINES
+            .iter()
+            .find(|(_, l)| *l == line)
+            .map(|(f, _)| *f)
+    }
+}
+
 #[derive(Default)]
 pub struct OptionsState {
     pub focus: OptionsFocus,