Feat: lots of things, preparing for live gig

src/state/audio.rs

@@ -83,6 +83,7 @@ pub struct AudioConfig {
     pub refresh_rate: RefreshRate,
     pub show_scope: bool,
     pub show_spectrum: bool,
+    pub show_preview: bool,
     pub layout: MainLayout,
 }
 
@@ -101,6 +102,7 @@ impl Default for AudioConfig {
             refresh_rate: RefreshRate::default(),
             show_scope: true,
             show_spectrum: true,
+            show_preview: true,
             layout: MainLayout::default(),
         }
     }

src/state/mod.rs

@@ -27,6 +27,7 @@ pub mod patterns_nav;
 pub mod playback;
 pub mod project;
 pub mod sample_browser;
+pub mod undo;
 pub mod ui;
 
 pub use audio::{AudioSettings, DeviceKind, EngineSection, MainLayout, Metrics, SettingKind};

src/state/modal.rs

@@ -64,6 +64,7 @@ pub enum Modal {
         input: String,
     },
     SetTempo(String),
+    JumpToStep(String),
     AddSamplePath(Box<FileBrowserState>),
     Editor,
     Preview,

src/state/options.rs

@@ -10,6 +10,7 @@ pub enum OptionsFocus {
     ShowScope,
     ShowSpectrum,
     ShowCompletion,
+    ShowPreview,
     LinkEnabled,
     StartStopSync,
     Quantum,
@@ -32,6 +33,7 @@ impl CyclicEnum for OptionsFocus {
         Self::ShowScope,
         Self::ShowSpectrum,
         Self::ShowCompletion,
+        Self::ShowPreview,
         Self::LinkEnabled,
         Self::StartStopSync,
         Self::Quantum,
@@ -54,17 +56,18 @@ const FOCUS_LINES: &[(OptionsFocus, usize)] = &[
     (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),
+    (OptionsFocus::ShowPreview, 9),
+    (OptionsFocus::LinkEnabled, 13),
+    (OptionsFocus::StartStopSync, 14),
+    (OptionsFocus::Quantum, 15),
+    (OptionsFocus::MidiOutput0, 25),
+    (OptionsFocus::MidiOutput1, 26),
+    (OptionsFocus::MidiOutput2, 27),
+    (OptionsFocus::MidiOutput3, 28),
+    (OptionsFocus::MidiInput0, 32),
+    (OptionsFocus::MidiInput1, 33),
+    (OptionsFocus::MidiInput2, 34),
+    (OptionsFocus::MidiInput3, 35),
 ];
 
 impl OptionsFocus {

src/state/undo.rs

@@ -0,0 +1,53 @@
+use crate::model::{Bank, Pattern};
+
+const MAX_UNDO: usize = 100;
+
+pub enum UndoScope {
+    Pattern {
+        bank: usize,
+        pattern: usize,
+        data: Pattern,
+    },
+    Bank {
+        bank: usize,
+        data: Bank,
+    },
+}
+
+pub struct UndoEntry {
+    pub scope: UndoScope,
+    pub cursor: (usize, usize, usize),
+}
+
+#[derive(Default)]
+pub struct UndoHistory {
+    pub(crate) undo_stack: Vec<UndoEntry>,
+    redo_stack: Vec<UndoEntry>,
+}
+
+impl UndoHistory {
+    pub fn push(&mut self, entry: UndoEntry) {
+        self.redo_stack.clear();
+        if self.undo_stack.len() >= MAX_UNDO {
+            self.undo_stack.remove(0);
+        }
+        self.undo_stack.push(entry);
+    }
+
+    pub fn pop_undo(&mut self) -> Option<UndoEntry> {
+        self.undo_stack.pop()
+    }
+
+    pub fn push_redo(&mut self, entry: UndoEntry) {
+        self.redo_stack.push(entry);
+    }
+
+    pub fn pop_redo(&mut self) -> Option<UndoEntry> {
+        self.redo_stack.pop()
+    }
+
+    pub fn clear(&mut self) {
+        self.undo_stack.clear();
+        self.redo_stack.clear();
+    }
+}