wip: refactor pt.6, fixed tek_api

crates/tek_tui/src/tui_arranger_foc.rs

@@ -0,0 +1,68 @@
+use crate::*;
+
+/// Sections in the arranger app that may be focused
+#[derive(Copy, Clone, PartialEq, Eq)]
+pub enum ArrangerAppFocus {
+    /// The transport (toolbar) is focused
+    Transport,
+    /// The arrangement (grid) is focused
+    Arrangement,
+    /// The phrase list (pool) is focused
+    PhrasePool,
+    /// The phrase editor (sequencer) is focused
+    PhraseEditor,
+}
+
+/// Focus layout of arranger app
+impl<E: Engine> FocusGrid for ArrangerApp<E> {
+    type Item = ArrangerAppFocus;
+    fn cursor (&self) -> (usize, usize) { self.focus_cursor }
+    fn cursor_mut (&mut self) -> &mut (usize, usize) { &mut self.focus_cursor }
+    fn focus_enter (&mut self) {
+        let focused = self.focused();
+        if !self.entered {
+            self.entered = true;
+            use ArrangerAppFocus::*;
+            if let Some(transport) = self.transport.as_ref() {
+                //transport.write().unwrap().entered = focused == Transport
+            }
+            self.arrangement.entered = focused == Arrangement;
+            self.phrases.write().unwrap().entered = focused == PhrasePool;
+            self.editor.entered = focused == PhraseEditor;
+        }
+    }
+    fn focus_exit (&mut self) {
+        if self.entered {
+            self.entered = false;
+            self.arrangement.entered = false;
+            self.editor.entered = false;
+            self.phrases.write().unwrap().entered = false;
+        }
+    }
+    fn entered (&self) -> Option<ArrangerAppFocus> {
+        if self.entered {
+            Some(self.focused())
+        } else {
+            None
+        }
+    }
+    fn layout (&self) -> &[&[ArrangerAppFocus]] {
+        use ArrangerAppFocus::*;
+        &[
+            &[Transport,   Transport],
+            &[Arrangement, Arrangement],
+            &[PhrasePool,  PhraseEditor],
+        ]
+    }
+    fn update_focus (&mut self) {
+        use ArrangerAppFocus::*;
+        let focused = self.focused();
+        if let Some(transport) = self.transport.as_ref() {
+            transport.write().unwrap().focused = focused == Transport
+        }
+        self.arrangement.focused = focused == Arrangement;
+        self.phrases.write().unwrap().focused = focused == PhrasePool;
+        self.editor.focused = focused == PhraseEditor;
+        self.update_status();
+    }
+}