Euclidean + hue rotation

src/input.rs

@@ -11,8 +11,8 @@ use crate::engine::{AudioCommand, LinkState, SeqCommand, SequencerSnapshot};
 use crate::model::PatternSpeed;
 use crate::page::Page;
 use crate::state::{
-    CyclicEnum, DeviceKind, EngineSection, Modal, OptionsFocus, PanelFocus, PatternField,
-    PatternPropsField, SampleBrowserState, SettingKind, SidePanel,
+    CyclicEnum, DeviceKind, EngineSection, EuclideanField, Modal, OptionsFocus, PanelFocus,
+    PatternField, PatternPropsField, SampleBrowserState, SettingKind, SidePanel,
 };
 
 pub enum InputResult {
@@ -641,6 +641,79 @@ fn handle_modal_input(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
                 _ => {}
             }
         }
+        Modal::EuclideanDistribution {
+            bank,
+            pattern,
+            source_step,
+            field,
+            pulses,
+            steps,
+            rotation,
+        } => {
+            let (bank_val, pattern_val, source_step_val) = (*bank, *pattern, *source_step);
+            match key.code {
+                KeyCode::Up => *field = field.prev(),
+                KeyCode::Down | KeyCode::Tab => *field = field.next(),
+                KeyCode::Left => {
+                    let target = match field {
+                        EuclideanField::Pulses => pulses,
+                        EuclideanField::Steps => steps,
+                        EuclideanField::Rotation => rotation,
+                    };
+                    if let Ok(val) = target.parse::<usize>() {
+                        *target = val.saturating_sub(1).to_string();
+                    }
+                }
+                KeyCode::Right => {
+                    let target = match field {
+                        EuclideanField::Pulses => pulses,
+                        EuclideanField::Steps => steps,
+                        EuclideanField::Rotation => rotation,
+                    };
+                    if let Ok(val) = target.parse::<usize>() {
+                        *target = (val + 1).min(128).to_string();
+                    }
+                }
+                KeyCode::Char(c) if c.is_ascii_digit() => match field {
+                    EuclideanField::Pulses => pulses.push(c),
+                    EuclideanField::Steps => steps.push(c),
+                    EuclideanField::Rotation => rotation.push(c),
+                },
+                KeyCode::Backspace => match field {
+                    EuclideanField::Pulses => {
+                        pulses.pop();
+                    }
+                    EuclideanField::Steps => {
+                        steps.pop();
+                    }
+                    EuclideanField::Rotation => {
+                        rotation.pop();
+                    }
+                },
+                KeyCode::Enter => {
+                    let pulses_val: usize = pulses.parse().unwrap_or(0);
+                    let steps_val: usize = steps.parse().unwrap_or(0);
+                    let rotation_val: usize = rotation.parse().unwrap_or(0);
+                    if pulses_val > 0 && steps_val > 0 && pulses_val <= steps_val {
+                        ctx.dispatch(AppCommand::ApplyEuclideanDistribution {
+                            bank: bank_val,
+                            pattern: pattern_val,
+                            source_step: source_step_val,
+                            pulses: pulses_val,
+                            steps: steps_val,
+                            rotation: rotation_val,
+                        });
+                        ctx.dispatch(AppCommand::CloseModal);
+                    } else {
+                        ctx.dispatch(AppCommand::SetStatus(
+                            "Invalid: pulses must be > 0 and <= steps".to_string(),
+                        ));
+                    }
+                }
+                KeyCode::Esc => ctx.dispatch(AppCommand::CloseModal),
+                _ => {}
+            }
+        }
         Modal::None => unreachable!(),
     }
     InputResult::Continue
@@ -962,6 +1035,25 @@ fn handle_main_page(ctx: &mut InputContext, key: KeyEvent, ctrl: bool) -> InputR
         KeyCode::Char('?') => {
             ctx.dispatch(AppCommand::OpenModal(Modal::KeybindingsHelp { scroll: 0 }));
         }
+        KeyCode::Char('e') | KeyCode::Char('E') => {
+            let (bank, pattern, step) = (
+                ctx.app.editor_ctx.bank,
+                ctx.app.editor_ctx.pattern,
+                ctx.app.editor_ctx.step,
+            );
+            let pattern_len = ctx.app.current_edit_pattern().length;
+            let default_steps = pattern_len.min(32);
+            let default_pulses = (default_steps / 2).max(1).min(default_steps);
+            ctx.dispatch(AppCommand::OpenModal(Modal::EuclideanDistribution {
+                bank,
+                pattern,
+                source_step: step,
+                field: EuclideanField::Pulses,
+                pulses: default_pulses.to_string(),
+                steps: default_steps.to_string(),
+                rotation: "0".to_string(),
+            }));
+        }
         _ => {}
     }
     InputResult::Continue
@@ -1292,6 +1384,11 @@ fn handle_options_page(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
                     };
                     ctx.dispatch(AppCommand::SetColorScheme(new_scheme));
                 }
+                OptionsFocus::HueRotation => {
+                    let delta = if key.code == KeyCode::Left { -1.0 } else { 1.0 };
+                    let new_rotation = (ctx.app.ui.hue_rotation + delta).rem_euclid(360.0);
+                    ctx.dispatch(AppCommand::SetHueRotation(new_rotation));
+                }
                 OptionsFocus::RefreshRate => ctx.dispatch(AppCommand::ToggleRefreshRate),
                 OptionsFocus::RuntimeHighlight => {
                     ctx.dispatch(AppCommand::ToggleRuntimeHighlight);