X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altosui%2FAltosFreqList.java;h=039b5f220277c35914ca5961552e276dd4668a2e;hp=7464ac3ee5f244c67e7fec24ca535a2231ea8c5c;hb=aa01f06acfbf029958a55f68175b6868817b333f;hpb=bf88c5f829ea5d32043431945e862a9f6c96740a

diff --git a/altosui/AltosFreqList.java b/altosui/AltosFreqList.java
index 7464ac3e..039b5f22 100644
--- a/altosui/AltosFreqList.java
+++ b/altosui/AltosFreqList.java
@@ -18,7 +18,7 @@
 package altosui;
 
 import javax.swing.*;
-import org.altusmetrum.altoslib_1.*;
+import org.altusmetrum.altoslib_3.*;
 import org.altusmetrum.altosuilib_1.*;
 
 public class AltosFreqList extends JComboBox {
@@ -29,6 +29,12 @@ public class AltosFreqList extends JComboBox {
 
 	public void set_frequency(double new_frequency) {
 		int i;
+
+		if (new_frequency < 0) {
+			setVisible(false);
+			return;
+		}
+
 		for (i = 0; i < getItemCount(); i++) {
 			AltosFrequency	f = (AltosFrequency) getItemAt(i);