Feat: tweak and fix from last night workshop

src/state/playback.rs

@@ -1,6 +1,6 @@
 use crate::engine::PatternChange;
-use crate::model::{LaunchQuantization, SyncMode};
-use std::collections::HashSet;
+use crate::model::{LaunchQuantization, PatternSpeed, SyncMode};
+use std::collections::{HashMap, HashSet};
 
 #[derive(Clone)]
 pub struct StagedChange {
@@ -15,11 +15,20 @@ pub enum StagedMuteChange {
     ToggleSolo { bank: usize, pattern: usize },
 }
 
+pub struct StagedPropChange {
+    pub name: Option<String>,
+    pub length: Option<usize>,
+    pub speed: PatternSpeed,
+    pub quantization: LaunchQuantization,
+    pub sync_mode: SyncMode,
+}
+
 pub struct PlaybackState {
     pub playing: bool,
     pub staged_changes: Vec<StagedChange>,
     pub queued_changes: Vec<StagedChange>,
     pub staged_mute_changes: HashSet<StagedMuteChange>,
+    pub staged_prop_changes: HashMap<(usize, usize), StagedPropChange>,
 }
 
 impl Default for PlaybackState {
@@ -29,6 +38,7 @@ impl Default for PlaybackState {
             staged_changes: Vec::new(),
             queued_changes: Vec::new(),
             staged_mute_changes: HashSet::new(),
+            staged_prop_changes: HashMap::new(),
         }
     }
 }
@@ -41,6 +51,11 @@ impl PlaybackState {
     pub fn clear_queues(&mut self) {
         self.staged_changes.clear();
         self.queued_changes.clear();
+        self.staged_prop_changes.clear();
+    }
+
+    pub fn has_staged_props(&self, bank: usize, pattern: usize) -> bool {
+        self.staged_prop_changes.contains_key(&(bank, pattern))
     }
 
     pub fn stage_mute(&mut self, bank: usize, pattern: usize) {