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- #ifndef K3DSDK_ICOMMAND_NODE_H
- #define K3DSDK_ICOMMAND_NODE_H
-
- // K-3D
- // Copyright (c) 1995-2008, Timothy M. Shead
- //
- // Contact: tshead@k-3d.com
- //
- // 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.
- //
- // This program is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- // General Public License for more details.
- //
- // You should have received a copy of the GNU General Public
- // License along with this program; if not, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- /** \file
- \author Tim Shead (tshead@k-3d.com)
- */
-
- #include "iunknown.h"
- #include "types.h"
-
- namespace k3d
- {
-
- /// Abstract interface for objects that can accept commands from external entities
- class icommand_node :
- public virtual iunknown
- {
- public:
- /// Enumerates the types of commands that can be executed by a node
- typedef enum
- {
- COMMAND_INTERACTIVE,
- COMMAND_MACRO,
- } type;
-
- /// Enumerates the possible return values from execute_command
- typedef enum
- {
- /// The command was executed without error, further execution should be halted
- RESULT_STOP,
- /// The command was executed without error, continue executing normally
- RESULT_CONTINUE,
- /// The command failed to execute
- RESULT_ERROR,
- /// The command was not recognized
- RESULT_UNKNOWN_COMMAND
-
- } result;
-
- /// Executes a command, returning the command result
- virtual const result execute_command(const string_t& Command, const string_t& Arguments) = 0;
-
- protected:
- icommand_node() {}
- icommand_node(const icommand_node&) {}
- icommand_node& operator=(const icommand_node&) { return *this; }
- virtual ~icommand_node() {}
- };
-
- } // namespace k3d
-
- #endif // !K3DSDK_ICOMMAND_NODE_H
-
-