core/src/main/java/dev/kske/undoredo/core/ChangeManager.java

@@ -55,11 +55,18 @@ public interface ChangeManager<C extends Change> {
 	 */
 	void mark();
 
+	/**
+	 * Resets the marked index so that no change is marked.
+	 *
+	 * @since 0.0.1
+	 */
+	void unmark();
+
 	/**
 	 * @return whether the current change is marked
 	 * @since 0.0.1
 	 */
-	boolean isAtMarkedIndex();
+	boolean isAtMarkedChange();
 
 	/**
 	 * @return whether a change is present that can be undone

core/src/main/java/dev/kske/undoredo/core/UnlimitedChangeManager.java

@@ -53,7 +53,12 @@ public final class UnlimitedChangeManager<C extends Change> implements ChangeMan
 	}
 
 	@Override
-	public boolean isAtMarkedIndex() {
+	public void unmark() {
+		markedIndex = -1;
+	}
+
+	@Override
+	public boolean isAtMarkedChange() {
 		return markedIndex == index;
 	}
 

core/src/test/java/dev/kske/undoredo/core/ChangeManagerTest.java

@@ -108,12 +108,28 @@ class ChangeManagerTest {
 	@Test
 	@Order(60)
 	void testMark() {
-		assertTrue(manager.isAtMarkedIndex());
+		assertTrue(manager.isAtMarkedChange());
 		manager.addChange(change);
-		assertFalse(manager.isAtMarkedIndex());
+		assertFalse(manager.isAtMarkedChange());
 		manager.mark();
-		assertTrue(manager.isAtMarkedIndex());
+		assertTrue(manager.isAtMarkedChange());
 		manager.undo();
-		assertFalse(manager.isAtMarkedIndex());
+		assertFalse(manager.isAtMarkedChange());
+	}
+
+	/**
+	 * Tests unmarking a change.
+	 *
+	 * @since 0.0.1
+	 */
+	@Test
+	@Order(70)
+	void testUnmark() {
+		manager.addChange(change);
+		manager.mark();
+		manager.unmark();
+		assertFalse(manager.isAtMarkedChange());
+		manager.undo();
+		assertTrue(manager.isAtMarkedChange());
 	}
 }

javafx/src/main/java/dev/kske/undoredo/javafx/ChangeManagerWrapper.java

@@ -24,14 +24,14 @@ public class ChangeManagerWrapper<C extends Change, M extends ChangeManager<C>>
 	implements ObservableChangeManager<C> {
 
 	public static final String	LAST_CHANGE			= "lastChange";
-	public static final String	AT_MARKED_INDEX	= "atMarkedIndex";
+	public static final String	AT_MARKED_CHANGE	= "atMarkedChange";
 	public static final String	UNDO_AVAILABLE		= "undoAvailable";
 	public static final String	REDO_AVAILABLE		= "redoAvailable";
 
 	protected ReadOnlyObjectWrapper<C>	lastChange		=
 		new ReadOnlyObjectWrapper<>(this, LAST_CHANGE);
-	protected ReadOnlyBooleanWrapper	atMarkedIndex	=
+	protected ReadOnlyBooleanWrapper	atMarkedChange	=
-		new ReadOnlyBooleanWrapper(this, AT_MARKED_INDEX);
+		new ReadOnlyBooleanWrapper(this, AT_MARKED_CHANGE);
 	protected ReadOnlyBooleanWrapper	undoAvailable	=
 		new ReadOnlyBooleanWrapper(this, UNDO_AVAILABLE);
 	protected ReadOnlyBooleanWrapper	redoAvailable	=
@@ -76,7 +76,13 @@ public class ChangeManagerWrapper<C extends Change, M extends ChangeManager<C>>
 	@Override
 	public void mark() {
 		manager.mark();
-		setAtMarkedIndex(manager.isAtMarkedIndex());
+		setAtMarkedChange(manager.isAtMarkedChange());
+	}
+
+	@Override
+	public void unmark() {
+		manager.unmark();
+		setAtMarkedChange(manager.isAtMarkedChange());
 	}
 
 	/**
@@ -86,7 +92,7 @@ public class ChangeManagerWrapper<C extends Change, M extends ChangeManager<C>>
 	 */
 	private void updateProperties() {
 		setLastChange(manager.getLastChange().orElse(null));
-		setAtMarkedIndex(manager.isAtMarkedIndex());
+		setAtMarkedChange(manager.isAtMarkedChange());
 		setUndoAvailable(manager.isUndoAvailable());
 		setRedoAvailable(manager.isRedoAvailable());
 	}
@@ -101,12 +107,12 @@ public class ChangeManagerWrapper<C extends Change, M extends ChangeManager<C>>
 	}
 
 	@Override
-	public final ReadOnlyBooleanProperty atMarkedIndexProperty() {
+	public final ReadOnlyBooleanProperty atMarkedChangeProperty() {
-		return atMarkedIndex.getReadOnlyProperty();
+		return atMarkedChange.getReadOnlyProperty();
 	}
 
-	protected final void setAtMarkedIndex(boolean atMarkedIndex) {
+	protected final void setAtMarkedChange(boolean atMarkedChange) {
-		this.atMarkedIndex.set(atMarkedIndex);
+		this.atMarkedChange.set(atMarkedChange);
 	}
 
 	@Override

javafx/src/main/java/dev/kske/undoredo/javafx/ObservableChangeManager.java

@@ -24,11 +24,11 @@ public interface ObservableChangeManager<C extends Change> extends ChangeManager
 		return Optional.of(lastChangeProperty().get());
 	}
 
-	ReadOnlyBooleanProperty atMarkedIndexProperty();
+	ReadOnlyBooleanProperty atMarkedChangeProperty();
 
 	@Override
-	default boolean isAtMarkedIndex() {
+	default boolean isAtMarkedChange() {
-		return atMarkedIndexProperty().get();
+		return atMarkedChangeProperty().get();
 	}
 
 	ReadOnlyBooleanProperty undoAvailableProperty();