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オブジェクトの移動を1つ戻せるようにした。
[gokigen/MeMoMa.git]
/
app
/
src
/
main
/
java
/
jp
/
sourceforge
/
gokigen
/
memoma
/
holders
/
IOperationHistoryHolder.java
diff --git
a/app/src/main/java/jp/sourceforge/gokigen/memoma/holders/IOperationHistoryHolder.java
b/app/src/main/java/jp/sourceforge/gokigen/memoma/holders/IOperationHistoryHolder.java
index
db296a5
..
45dbf8c
100644
(file)
--- a/
app/src/main/java/jp/sourceforge/gokigen/memoma/holders/IOperationHistoryHolder.java
+++ b/
app/src/main/java/jp/sourceforge/gokigen/memoma/holders/IOperationHistoryHolder.java
@@
-29,6
+29,8
@@
interface IOperationHistoryHolder
void addHistory(int key, ChangeKind kind, Object object);
void reset();
- void undo();
+
+ boolean undo();
+ boolean isHistoryExist();
}