1 files changed, 131 insertions, 0 deletions
diff --git a/ksysv/ActionList.h b/ksysv/ActionList.h
new file mode 100644
index 0000000..f420b48
--- /dev/null
+++ b/ksysv/ActionList.h
@@ -0,0 +1,131 @@
+/***************************************************************************
+    begin                : Sun Oct 3 1999
+    copyright            : (C) 1997-99 by Peter Putzer
+    email                : putzer@kde.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; version 2.                              *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef KSV_ACTIONLIST_H
+#define KSV_ACTIONLIST_H
+
+#include <qptrstack.h>
+#include <qobject.h>
+
+class KSVData;
+class KSVDragList;
+
+class KSVAction
+{
+public:
+  KSVAction ();
+  virtual ~KSVAction () = 0;
+
+  virtual void undo () = 0;
+  virtual void redo() = 0;
+
+private:
+  const KSVAction& operator= (const KSVAction&); // undefined
+  KSVAction (const KSVAction&); // undefined
+};
+
+class SimpleAction : public KSVAction
+{
+public:
+  SimpleAction (KSVDragList* source, const KSVData* item);
+  virtual ~SimpleAction();
+
+  inline KSVDragList* source() { return mSource; }
+  inline KSVData* item() { return mItem; }
+
+  virtual void undo() = 0;
+  virtual void redo() = 0;
+
+private:
+  KSVDragList* mSource;
+  KSVData* mItem;
+};
+
+class RemoveAction : public SimpleAction
+{
+public:
+  RemoveAction (KSVDragList* s, const KSVData* i);
+  virtual ~RemoveAction();
+
+  virtual void undo();
+  virtual void redo();
+};
+
+class AddAction : public SimpleAction
+{
+public:
+  AddAction (KSVDragList* s, const KSVData* i);
+  virtual ~AddAction();
+
+  virtual void undo();
+  virtual void redo();
+};
+
+class ChangeAction : public SimpleAction
+{
+public:
+  ChangeAction (KSVDragList* s, const KSVData* oldState, const KSVData* newState);
+  virtual ~ChangeAction();
+
+  virtual void undo();
+  virtual void redo();
+
+  inline KSVData* newState() { return mNew; }
+  inline KSVData* oldState() { return item(); }
+private:
+  KSVData* mNew;
+};
+
+class CompoundAction : public KSVAction
+{
+public:
+  CompoundAction (KSVAction*[], int nr);
+  virtual ~CompoundAction();
+  
+  virtual void undo();
+  virtual void redo();
+
+private:
+  KSVAction** mActions;
+  int mCount;
+};
+
+
+
+class ActionList : public QObject, private QPtrStack<KSVAction>
+{
+  Q_OBJECT
+  
+public:
+  ActionList (QObject* parent, const char* name);
+  virtual ~ActionList ();
+
+  KSVAction* top () const { return QPtrStack<KSVAction>::top(); }
+
+public slots:
+  void undoLast ();
+  void undoAll ();
+  void redoLast ();
+  void redoAll ();
+  void push (KSVAction*);
+  void clear ();
+
+signals:
+  void undone ();
+  void empty ();
+  void filled ();
+};
+
+#endif
+