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+/* Starshatter OpenSource Distribution
+ Copyright (c) 1997-2004, Destroyer Studios LLC.
+ All Rights Reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name "Destroyer Studios" nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ SUBSYSTEM: Magic.exe
+ FILE: Command.h
+ AUTHOR: John DiCamillo
+
+
+ OVERVIEW
+ ========
+ Base class (interface) for command pattern. A
+ command encapsulates a single editing operation
+ that may be performed on a document. Each command
+ may be done or undone multiple times. The specialized
+ implementations for each type of operation are re-
+ sponsible for providing a means to return the model
+ to the prior state.
+*/
+
+#ifndef Command_h
+#define Command_h
+
+#include "Text.h"
+
+// +--------------------------------------------------------------------+
+
+class MagicDoc;
+class Solid;
+class Model;
+
+// +--------------------------------------------------------------------+
+
+class Command
+{
+public:
+ static const char* TYPENAME() { return "Command"; }
+
+ Command(const char* name, MagicDoc* document);
+ virtual ~Command();
+
+ // operations
+ virtual void Do();
+ virtual void Undo();
+
+ const char* Name() const { return name; }
+
+protected:
+ Text name;
+ MagicDoc* document;
+};
+
+// +--------------------------------------------------------------------+
+
+#endif Command_h