ok

src/state/options.rs

@@ -0,0 +1,45 @@
+#[derive(Clone, Copy, PartialEq, Eq, Default)]
+pub enum OptionsFocus {
+    #[default]
+    RefreshRate,
+    RuntimeHighlight,
+    ShowScope,
+    ShowSpectrum,
+    ShowCompletion,
+    LinkEnabled,
+    StartStopSync,
+    Quantum,
+}
+
+#[derive(Default)]
+pub struct OptionsState {
+    pub focus: OptionsFocus,
+}
+
+impl OptionsState {
+    pub fn next_focus(&mut self) {
+        self.focus = match self.focus {
+            OptionsFocus::RefreshRate => OptionsFocus::RuntimeHighlight,
+            OptionsFocus::RuntimeHighlight => OptionsFocus::ShowScope,
+            OptionsFocus::ShowScope => OptionsFocus::ShowSpectrum,
+            OptionsFocus::ShowSpectrum => OptionsFocus::ShowCompletion,
+            OptionsFocus::ShowCompletion => OptionsFocus::LinkEnabled,
+            OptionsFocus::LinkEnabled => OptionsFocus::StartStopSync,
+            OptionsFocus::StartStopSync => OptionsFocus::Quantum,
+            OptionsFocus::Quantum => OptionsFocus::RefreshRate,
+        };
+    }
+
+    pub fn prev_focus(&mut self) {
+        self.focus = match self.focus {
+            OptionsFocus::RefreshRate => OptionsFocus::Quantum,
+            OptionsFocus::RuntimeHighlight => OptionsFocus::RefreshRate,
+            OptionsFocus::ShowScope => OptionsFocus::RuntimeHighlight,
+            OptionsFocus::ShowSpectrum => OptionsFocus::ShowScope,
+            OptionsFocus::ShowCompletion => OptionsFocus::ShowSpectrum,
+            OptionsFocus::LinkEnabled => OptionsFocus::ShowCompletion,
+            OptionsFocus::StartStopSync => OptionsFocus::LinkEnabled,
+            OptionsFocus::Quantum => OptionsFocus::StartStopSync,
+        };
+    }
+}