Add UndoCommand class

Add a class to handle all undo/redo events. Whenever a user
action affects a dive, an undo command will be created. A list of
these commands will be stored in the UndoBuffer, to allow for
moving forwards/backwards in the list.

Signed-off-by: Grace Karanja <gracie.karanja89@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/qt-ui/undobuffer.cpp b/qt-ui/undobuffer.cpp
index fd74466be..1812f6f7a 100644
--- a/qt-ui/undobuffer.cpp
+++ b/qt-ui/undobuffer.cpp
@@ -39,3 +39,21 @@ void UndoBuffer::recordAfter(dive *affectedDive)
 {
 
 }
+
+
+
+UndoCommand::UndoCommand(QString commandName, dive *affectedDive)
+{
+	name = commandName;
+	stateBefore = affectedDive;
+}
+
+void UndoCommand::undo()
+{
+
+}
+
+void UndoCommand::redo()
+{
+
+}