Updates for 0.9.3

[debian/openrocket] / src / net / sf / openrocket / material / MaterialStorage.java

diff --git a/src/net/sf/openrocket/material/MaterialStorage.java b/src/net/sf/openrocket/material/MaterialStorage.java
new file mode 100644 (file)
index 0000000..5abdd91
--- /dev/null
+++ b/src/net/sf/openrocket/material/MaterialStorage.java
@@ -0,0 +1,27 @@
+package net.sf.openrocket.material;
+
+import net.sf.openrocket.database.Database;
+import net.sf.openrocket.database.DatabaseListener;
+import net.sf.openrocket.util.Prefs;
+
+/**
+ * Class for storing changes to user-added materials.  The materials are stored to
+ * the OpenRocket preferences.
+ * 
+ * @author Sampo Niskanen <sampo.niskanen@iki.fi>
+ */
+public class MaterialStorage implements DatabaseListener<Material> {
+
+       @Override
+       public void elementAdded(Material material, Database<Material> source) {
+               if (material.isUserDefined()) {
+                       Prefs.addUserMaterial(material);
+               }
+       }
+
+       @Override
+       public void elementRemoved(Material material, Database<Material> source) {
+               Prefs.removeUserMaterial(material);
+       }
+
+}