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/*
 *  Copyright (c) 2002-2003 Jesper K. Pedersen <blackie@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 version 2 as published by the Free Software Foundation.
 *
 *  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., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 **/
#ifndef widgetfactory
#define widgetfactory

#include <qdom.h>

class RegExpWidget;
class RegExpEditorWindow;
class QWidget;
class ConcWidget;
class RegExp;

/**
   All the different regular expression types.
*/
enum RegExpType {
  TEXT = 0, CHARSET = 1, DOT = 2, REPEAT = 3, ALTN = 4, COMPOUND = 5, BEGLINE = 6,
  ENDLINE = 7, WORDBOUNDARY = 8, NONWORDBOUNDARY = 9, CONC = 10, DRAGACCEPTER = 11,
  POSLOOKAHEAD = 12, NEGLOOKAHEAD = 13
};

/**
   Class used to encapsulate information about widgets.

   When reading widgets from a stream, it is necessary to know about all
   sub-widgets to the @ref RegExpWidget class. This class exists to make
   sure that such general information is only kept once.

   @internal
*/
class WidgetFactory
{
public:
  static RegExpWidget* createWidget( RegExpEditorWindow* editorWindow, QWidget* parent,
                                     RegExpType type );
  static RegExpWidget* createWidget( RegExp* regexp, RegExpEditorWindow* editorWindow,
                                     QWidget* parent );
  static RegExp* createRegExp( QDomElement node, const QString& version );
  static RegExp* createRegExp( QString str );
  static bool isContainer( RegExpType );
};

#endif // widgetfactory