From 453527c5410d55e54041b965c6f6ccb434fdb9a3 Mon Sep 17 00:00:00 2001
From: Adam Wonak <adam.wonak@gmail.com>
Date: Tue, 27 May 2025 21:29:31 -0700
Subject: [PATCH] add select source behavior for new clock resolutions.

---
 clock.h                          | 4 +++-
 examples/clock_mod/clock_mod.ino | 7 ++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/clock.h b/clock.h
index 62930cd..6578b1f 100644
--- a/clock.h
+++ b/clock.h
@@ -49,6 +49,7 @@ class Clock {
 
     // Set the source of the clock mode.
     void SetSource(Source source) {
+        uClock.stop();
         switch (source) {
             case SOURCE_INTERNAL:
                 uClock.setClockMode(uClock.INTERNAL_CLOCK);
@@ -56,12 +57,13 @@ class Clock {
             case SOURCE_EXTERNAL_PPQN_24:
                 uClock.setClockMode(uClock.EXTERNAL_CLOCK);
                 uClock.setInputPPQN(uClock.PPQN_24);
+                break;
             case SOURCE_EXTERNAL_PPQN_4:
                 uClock.setClockMode(uClock.EXTERNAL_CLOCK);
                 uClock.setInputPPQN(uClock.PPQN_4);
-            default:
                 break;
         }
+        uClock.start();
     }
 
     bool ExternalSource() {
diff --git a/examples/clock_mod/clock_mod.ino b/examples/clock_mod/clock_mod.ino
index 28987c8..fa6979a 100644
--- a/examples/clock_mod/clock_mod.ino
+++ b/examples/clock_mod/clock_mod.ino
@@ -157,7 +157,12 @@ void HandleRotate(Direction dir, int val) {
                 break;
 
             case 1:        
-                app.selected_source = static_cast<Source>((app.selected_source + 1) % SOURCE_LAST);
+                if (static_cast<Source>(app.selected_source) == 0 && val < 0) {
+                    app.selected_source = static_cast<Source>(SOURCE_LAST - 1);
+                } else {
+                    app.selected_source = static_cast<Source>((app.selected_source + val) % SOURCE_LAST);
+                }
+
                 gravity.clock.SetSource(app.selected_source);
                 app.refresh_screen = true;
                 break;