From 54c5ef60df14935efaa2900207130cfc1f3ceae7 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Tue, 18 Mar 2025 11:02:55 -0400
Subject: [PATCH] mikmod:  Decouple the info scrolling from volume setting

This way volume setting will always follow UP/DN conventions
but scrolling is reversed as needed.

Change-Id: I3fc72c29d78fab46bdf19947a88c02e039bfad51
---
 apps/plugins/mikmod/mikmod.c | 37 ++++++++++++++++++++++++++----------
 1 file changed, 27 insertions(+), 10 deletions(-)

diff --git a/apps/plugins/mikmod/mikmod.c b/apps/plugins/mikmod/mikmod.c
index 99d5aca148..d80a69a8a6 100644
--- a/apps/plugins/mikmod/mikmod.c
+++ b/apps/plugins/mikmod/mikmod.c
@@ -715,6 +715,23 @@ static void mm_errorhandler(void)
     quit = true;
 }
 
+static void do_vscroll(int up)
+{
+    if (up) {
+        if ( textlines-vscroll >= MAX_LINES )
+        {
+            vscroll++;
+            screenupdated = false;
+        }
+    } else {
+        if ( vscroll > 0 )
+        {
+            vscroll--;
+            screenupdated = false;
+        }
+    }
+}
+
 static int playfile(char* filename)
 {
     int button;
@@ -793,11 +810,11 @@ static int playfile(char* filename)
         case ACTION_WPS_VOLUP:
             if ( display != DISPLAY_INFO )
             {
-                if ( textlines-vscroll >= MAX_LINES )
-                {
-                    vscroll++;
-                    screenupdated = false;
-                }
+#ifdef HAVE_SCROLLWHEEL
+                do_vscroll(1);
+#else
+                do_vscroll(0);
+#endif
                 break;
             }
 
@@ -807,11 +824,11 @@ static int playfile(char* filename)
         case ACTION_WPS_VOLDOWN:
             if ( display != DISPLAY_INFO )
             {
-                if ( vscroll > 0 )
-                {
-                    vscroll--;
-                    screenupdated = false;
-                }
+#ifdef HAVE_SCROLLWHEEL
+                do_vscroll(0);
+#else
+                do_vscroll(1);
+#endif
                 break;
             }