2 files changed, 13 insertions, 0 deletions

diff --git a/src/main/java/cuchaz/enigma/gui/GuiController.java b/src/main/java/cuchaz/enigma/gui/GuiController.java
index a55d2cd..4410bf3 100644
--- a/src/main/java/cuchaz/enigma/gui/GuiController.java
+++ b/src/main/java/cuchaz/enigma/gui/GuiController.java
@@ -160,6 +160,12 @@ public class GuiController {
                 refreshCurrentClass();
         }
 
+        public void dropMappings() {
+                if (project == null) return;
+
+                ProgressDialog.runOffThread(this.gui.getFrame(), progress -> project.dropMappings(progress));
+        }
+
         public void exportSource(final Path path) {
                 if (project == null) return;
 
diff --git a/src/main/java/cuchaz/enigma/gui/elements/MenuBar.java b/src/main/java/cuchaz/enigma/gui/elements/MenuBar.java
index 5578325..a3bd2fe 100644
--- a/src/main/java/cuchaz/enigma/gui/elements/MenuBar.java
+++ b/src/main/java/cuchaz/enigma/gui/elements/MenuBar.java
@@ -29,6 +29,7 @@ public class MenuBar extends JMenuBar {
         public final JMenuItem saveMappingEnigmaDirectoryMenu;
         public final JMenuItem saveMappingsSrgMenu;
         public final JMenuItem closeMappingsMenu;
+        public final JMenuItem dropMappingsMenu;
         public final JMenuItem exportSourceMenu;
         public final JMenuItem exportJarMenu;
         private final Gui gui;
@@ -149,6 +150,12 @@ public class MenuBar extends JMenuBar {
                                 });
                                 this.closeMappingsMenu = item;
                         }
+                        {
+                                JMenuItem item = new JMenuItem("Drop Invalid Mappings");
+                                menu.add(item);
+                                item.addActionListener(event -> this.gui.getController().dropMappings());
+                                this.dropMappingsMenu = item;
+                        }
                         menu.addSeparator();
                         {
                                 JMenuItem item = new JMenuItem("Export Source...");