wip: nomralize

src/sample.rs

@@ -1,6 +1,54 @@
+use crate::*;
 use ::std::sync::{Arc, RwLock, atomic::{AtomicUsize, Ordering::*}};
 use crate::device::{MidiInput, MidiOutput, AudioInput, AudioOutput};
 
+def_command!(SamplerCommand: |sampler: Sampler| {
+    RecordToggle { slot: usize } => {
+        let slot = *slot;
+        let recording = sampler.recording.as_ref().map(|x|x.0);
+        let _ = Self::RecordFinish.execute(sampler)?;
+        // autoslice: continue recording at next slot
+        if recording != Some(slot) {
+            Self::RecordBegin { slot }.execute(sampler)
+        } else {
+            Ok(None)
+        }
+    },
+    RecordBegin { slot: usize } => {
+        let slot = *slot;
+        sampler.recording = Some((
+            slot,
+            Some(Arc::new(RwLock::new(Sample::new(
+                "Sample", 0, 0, vec![vec![];sampler.audio_ins.len()]
+            ))))
+        ));
+        Ok(None)
+    },
+    RecordFinish => {
+        let _prev_sample = sampler.recording.as_mut().map(|(index, sample)|{
+            std::mem::swap(sample, &mut sampler.samples.0[*index]);
+            sample
+        }); // TODO: undo
+        Ok(None)
+    },
+    RecordCancel => {
+        sampler.recording = None;
+        Ok(None)
+    },
+    PlaySample { slot: usize } => {
+        let slot = *slot;
+        if let Some(ref sample) = sampler.samples.0[slot] {
+            sampler.voices.write().unwrap().push(Sample::play(sample, 0, &u7::from(128)));
+        }
+        Ok(None)
+    },
+    StopSample { slot: usize } => {
+        let _slot = *slot;
+        todo!();
+        //Ok(None)
+    },
+});
+
 /// Plays [Voice]s from [Sample]s.
 /// 
 /// ```
@@ -651,3 +699,7 @@ fn draw_sample (
     to.blit(&label2, x+3+label1.len()as u16, y, Some(style));
     Ok(label1.len() + label2.len() + 4)
 }
+
+fn read_sample_data (_: &str) -> Usually<(usize, Vec<Vec<f32>>)> {
+    todo!();
+}