/* This file is part of the KDE libraries
Copyright (C) 1998 Martin Jones (mjones@kde.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __HTMLITER_H__
#define __HTMLITER_H__
class HTMLObject;
class HTMLClue;
class HTMLTable;
/*
* This is the base class for iterators of the HTMLObject heirarchy.
* Currently the iterators only iterarate through the displayed objects,
* i.e. container objects such as HTMLClue & HTMLTable are not moved to
* by next(), rather their children are traversed.
*/
class HTMLIterator
{
public:
HTMLIterator() {}
virtual ~HTMLIterator() {}
/*
* return a pointer to the current object
*/
virtual HTMLObject *current() = 0;
/*
* move to the next object.
* returns true if we are not already at the end of the list.
*/
virtual bool next() = 0;
};
/*
* Iterator for all HTMLClue derived container objects
*/
class HTMLListIterator : public HTMLIterator
{
public:
HTMLListIterator( HTMLClue *c );
virtual ~HTMLListIterator()
{ if ( iter ) delete iter; }
virtual bool next();
virtual HTMLObject *current();
protected:
HTMLClue *clue;
HTMLObject *curr;
HTMLIterator *iter;
};
/*
* Iterator for HTMLTable container object
*/
class HTMLTableIterator : public HTMLIterator
{
public:
HTMLTableIterator( HTMLTable *t );
virtual ~HTMLTableIterator()
{ if ( iter ) delete iter; }
virtual bool next();
virtual HTMLObject *current();
protected:
HTMLObject *nextCell();
protected:
int row;
int col;
HTMLTable *table;
HTMLObject *curr;
HTMLIterator *iter;
};
#endif
Documentation generated by tasin@cd1 on Die Nov 30 17:32:22 CET 1999