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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
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