altoslib: Make AltosState serializable

This involved making every class it references serializable as well

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/altoslib/AltosAccel.java b/altoslib/AltosAccel.java
index d91da4da..e40a47b4 100644
--- a/altoslib/AltosAccel.java
+++ b/altoslib/AltosAccel.java
@@ -17,7 +17,9 @@
 
 package org.altusmetrum.altoslib_5;
 
-public class AltosAccel extends AltosUnits {
+import java.io.*;
+
+public class AltosAccel extends AltosUnits implements Serializable {
 
 	public double value(double v, boolean imperial_units) {
 		if (imperial_units)
@@ -46,4 +48,4 @@ public class AltosAccel extends AltosUnits {
 	public int show_fraction(int width, boolean imperial_units) {
 		return width / 9;
 	}
-}
\ No newline at end of file
+}