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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kpovmodeler/pmdatachangecommand.h
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/kpovmodeler/pmdatachangecommand.h b/kpovmodeler/pmdatachangecommand.h
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+//-*-C++-*-
+/*
+**************************************************************************
+ description
+ --------------------
+ copyright : (C) 2000-2001 by Andreas Zehender
+ email : zehender@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; either version 2 of the License, or *
+* (at your option) any later version. *
+* *
+**************************************************************************/
+
+
+#ifndef PMDATACHANGECOMMAND_H
+#define PMDATACHANGECOMMAND_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "pmcommand.h"
+
+class PMMemento;
+
+/**
+ * Command that stores undo information for object changes
+ *
+ * Let an object create a @ref PMMemento, change the objects data, take the
+ * memento and create a PMDataChangeCommand with this memento.
+ *
+ * Then execute the command. The object will not be changed again!
+ */
+class PMDataChangeCommand : public PMCommand
+{
+public:
+ /**
+ * Creates a PMDataChangeCommand for the memento
+ */
+ PMDataChangeCommand( PMMemento* memento );
+ /**
+ * Deletes the command. The memento will be deleted.
+ */
+ virtual ~PMDataChangeCommand( );
+protected:
+ /**
+ * Executes the command
+ */
+ virtual void execute( PMCommandManager* theManager );
+ /**
+ * Undo the command
+ */
+ virtual void undo( PMCommandManager* theManager );
+
+private:
+ void signalChanges( PMCommandManager* theManager, PMMemento* memento );
+ PMMemento* m_pNewState;
+ PMMemento* m_pOldState;
+ bool m_executed;
+ bool m_unexecuted;
+};
+
+#endif