home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Hackers Magazine 57
/
CdHackersMagazineNr57.iso
/
Software
/
Multimedia
/
k3d-setup-0.7.11.0.exe
/
include
/
k3d
/
k3dsdk
/
imetadata.h
< prev
next >
Wrap
C/C++ Source or Header
|
2008-11-30
|
2KB
|
68 lines
#ifndef K3DSDK_IMETADATA_H
#define K3DSDK_IMETADATA_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 "signal_system.h"
#include "types.h"
#include <map>
namespace k3d
{
/// Abstract interface for objects that can store arbitrary metadata (name-value pairs).
class imetadata :
public virtual iunknown
{
public:
/// Defines storage for an arbitrary collection of name-value pairs
typedef std::map<string_t, string_t> metadata_t;
/// Sets a new name-value pair, overwriting the value if the name already exists
virtual void set_metadata_value(const string_t& Name, const string_t& Value) = 0;
/// Sets a collection of name-value pair, overwriting any existing values
virtual void set_metadata(const metadata_t& Values) = 0;
/// Returns the set of existing name-value pairs
virtual metadata_t get_metadata() = 0;
/// Returns a value by name, or empty-string if the name doesn't exist
virtual const string_t get_metadata_value(const string_t& Name) = 0;
/// Erases an existing name-value pair
virtual void erase_metadata_value(const string_t& Name) = 0;
/// Connects a slot to a signal that will be emitted whenever the metadata contents change
virtual sigc::connection connect_metadata_changed_signal(const sigc::slot<void>& Slot) = 0;
protected:
imetadata() {}
imetadata(const imetadata&) {}
imetadata& operator = (const imetadata&) { return *this; }
virtual ~imetadata() {}
};
} // namespace k3d
#endif // !K3DSDK_IMETADATA_H