166 lines
3.9 KiB
C++
166 lines
3.9 KiB
C++
// -*- c++ -*-
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#ifndef _GLIBMM_HELPERLIST_H
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#define _GLIBMM_HELPERLIST_H
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/* $Id$ */
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/* helperlist.h
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*
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* Copyright 2002 The gtkmm Development Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glibmm/containers.h>
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namespace Glib
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{
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// This class has some pure virtual methods which need to be implemented by derived classes.
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template< typename T_Child, typename T_CppElement, typename T_Iterator >
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class HelperList
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{
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public:
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HelperList()
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: gparent_(0)
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{}
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HelperList(GObject* gparent)
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: gparent_(gparent)
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{}
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virtual ~HelperList()
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{}
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typedef T_Child value_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef T_Iterator iterator;
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typedef List_ConstIterator<iterator> const_iterator;
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typedef List_ReverseIterator<iterator> reverse_iterator;
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typedef List_ConstIterator<reverse_iterator> const_reverse_iterator;
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typedef T_CppElement element_type;
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typedef size_t difference_type;
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typedef size_t size_type;
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//These are implemented differently for each Helper List.
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virtual iterator erase(iterator) = 0;
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virtual void erase(iterator start, iterator stop)
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{
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while(start != stop)
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start = erase(start); //Implemented in derived class.
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}
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virtual void remove(const_reference) = 0;
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size_type size() const
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{
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return g_list_length(glist());
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}
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inline size_type max_size() { return size_type(-1); }
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inline bool empty() { return glist() == 0; }
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inline iterator begin()
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{return begin_();}
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inline iterator end()
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{return end_();}
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inline const_iterator begin() const
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{ return const_iterator(begin_()); }
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inline const_iterator end() const
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{ return const_iterator(end_()); }
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inline reverse_iterator rbegin()
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{ return reverse_iterator(end_()); }
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inline reverse_iterator rend()
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{ return reverse_iterator(begin_()); }
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inline const_reverse_iterator rbegin() const
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{ return const_reverse_iterator(reverse_iterator(end_())); }
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inline const_reverse_iterator rend() const
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{ return const_reverse_iterator(reverse_iterator(begin_())); }
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reference front() const
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{
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return *begin();
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}
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reference back() const
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{
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return *(--end());
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}
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reference operator[](size_type l) const
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{
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size_type j = 0;
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iterator i;
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for(i = begin(), j = 0; i != end(), j < l; ++i, ++j);
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return (*i);
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}
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// iterator find(const_reference w)
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// {
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// iterator i = begin();
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// for(i = begin(); i != end() && (*i != w); i++);
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// return i;
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// }
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//
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// iterator find(Widget& w)
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// {
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// iterator i;
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// for (i = begin(); i != end() && ((*i)->$1() != &w); i++);
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// return i;
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// }
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//Derived classes might choose to reimplement these as public:
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inline void pop_front()
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{ erase(begin()); }
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inline void pop_back()
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{ erase(--end()); }
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void clear()
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{ erase(begin(), end()); }
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GObject* gparent()
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{ return gparent_; };
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const GObject* gparent() const
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{ return gparent_; };
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protected:
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virtual GList*& glist() const = 0; // front of list
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iterator begin_() const
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{
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return iterator(glist(), glist());
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}
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iterator end_() const
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{
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return iterator(glist(), (GList*)0);
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}
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GObject* gparent_;
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};
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} /* namespace Glib */
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#endif /* _GLIBMM_HELPERLIST_H */
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