From 79320c8187a15ead7af42915e65cefeca491c073 Mon Sep 17 00:00:00 2001
From: Harry van Haaren <harryhaaren@gmail.com>
Date: Fri, 12 Jun 2015 21:17:10 +0100
Subject: [PATCH] -Fixed #100, mouse scroll on dial working

---
 src/avtk/avtk_dial.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/avtk/avtk_dial.h b/src/avtk/avtk_dial.h
index cd7bd09..67c3c03 100644
--- a/src/avtk/avtk_dial.h
+++ b/src/avtk/avtk_dial.h
@@ -172,6 +172,17 @@ class Dial : public Fl_Slider
             }
           }
           return 1;
+        case FL_MOUSEWHEEL:
+          {
+            float val = value() - Fl::event_dy() * 0.1;
+            //printf("dial scroll event: %f\n", val);
+            if ( val > 1.0 ) val = 1.0;
+            if ( val < 0.0 ) val = 0.0;
+            set_value( val );
+            redraw();
+            do_callback();
+          }
+          break;
         case FL_RELEASE:
           if (highlight) {
             highlight = 0;