Restructure project: 1 file = 1 responsibility, max 4 files/folder, 250 lines/file

src/ui/screens/settings.rs

@@ -0,0 +1,52 @@
+//! Settings screen widget builder.
+
+use crate::ui::widgets::{block, SETTING_INFO};
+use ratatui::style::{Color, Modifier, Style};
+use ratatui::text::{Line, Span};
+use ratatui::widgets::Paragraph;
+
+/// Settings rows from rendered values and the current cursor row.
+pub(crate) fn settings_paragraph(values: &[String], cursor: usize) -> Paragraph<'static> {
+    let labels = [
+        "Preset",
+        "Pitch",
+        "Formant",
+        "Gate (min)",
+        "Gain",
+        "Mute",
+        "Mode",
+        "Record",
+        "Pitch corr",
+    ];
+    let mut lines = Vec::new();
+    for (i, label) in labels.iter().enumerate() {
+        let selected = i == cursor;
+        let style = if selected {
+            Style::default()
+                .fg(Color::Yellow)
+                .add_modifier(Modifier::BOLD)
+        } else {
+            Style::default().fg(Color::Gray)
+        };
+        let info_style = Style::default().fg(Color::DarkGray);
+        lines.push(Line::from(vec![
+            Span::styled(
+                format!(
+                    "{}{} {:<12}",
+                    if selected { "▶" } else { " " },
+                    if selected { "" } else { " " },
+                    label
+                ),
+                style,
+            ),
+            Span::styled(format!("{:<16}", values[i]), style),
+            Span::styled(SETTING_INFO[i], info_style),
+        ]));
+    }
+    lines.push(Line::from(""));
+    lines.push(Line::styled(
+        "  use ↑ ↓ to select, ← → (or Enter) to change, Esc to go back",
+        Style::default().fg(Color::DarkGray),
+    ));
+    Paragraph::new(lines).block(block(" settings "))
+}