ui: use safeRepaint()

To allow workaround for OpenJDK bug.
    https://github.com/philburk/syntona/issues/13

1 files changed, 7 insertions, 1 deletions

diff --git a/src/com/jsyn/swing/RotaryController.java b/src/com/jsyn/swing/RotaryController.java
index 6cc84f3..c26c37f 100644
--- a/src/com/jsyn/swing/RotaryController.java
+++ b/src/com/jsyn/swing/RotaryController.java
@@ -69,11 +69,17 @@ public class RotaryController extends JPanel {
         model.addChangeListener(new ChangeListener() {
             @Override
             public void stateChanged(ChangeEvent e) {
-                repaint();
+                safeRepaint();
             }
+
         });
     }
 
+    // This can be overridden in subclasses to workaround OpenJDK bugs.
+    public void safeRepaint() {
+        repaint();
+    }
+
     public BoundedRangeModel getModel() {
         return model;
     }