treemodelcolumn.h

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#ifndef _GTKMM_TREEMODELCOLUMN_H
#define _GTKMM_TREEMODELCOLUMN_H
 
/* Copyright (c) 2002 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or(at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
#include <gtkmmconfig.h>
#include <glibmm/value.h>
#include <glib-object.h>
#include <vector>
 
namespace Gtk
{
 
class TreeModelColumnBase;
 
 
class TreeModelColumnRecord
{
public:
  TreeModelColumnRecord();
  virtual ~TreeModelColumnRecord();
 
  void add(TreeModelColumnBase& column);
  
  unsigned int size()  const;
  const GType* types() const;
 
private:
  std::vector<GType> column_types_;
 
  // noncopyable
  TreeModelColumnRecord(const TreeModelColumnRecord&);
  TreeModelColumnRecord& operator=(const TreeModelColumnRecord&);
};
 
 
class TreeModelColumnBase
{
public:
  GType type()  const { return type_;  }
  int index() const { return index_; }
 
protected:
  explicit TreeModelColumnBase(GType type);
 
private:
  GType type_;
  int   index_;
 
  friend class Gtk::TreeModelColumnRecord;
};
 
inline bool operator==(const TreeModelColumnBase& lhs, const TreeModelColumnBase& rhs)
  { return (lhs.index() == rhs.index()); }
 
inline bool operator!=(const TreeModelColumnBase& lhs, const TreeModelColumnBase& rhs)
  { return (lhs.index() != rhs.index()); }
 
 
template <class T>
class TreeModelColumn : public TreeModelColumnBase
{
public:
  typedef T               ElementType;
  typedef Glib::Value<T>  ValueType;
 
  TreeModelColumn() : TreeModelColumnBase(ValueType::value_type()) {}
};
 
} // namespace Gtk
 
 
#endif /* _GTKMM_TREEMODELCOLUMN_H */