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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 __concwidget
#define __concwidget

#include "multicontainerwidget.h"
class ConcRegExp;

/**
   RegExp widget which can have several sub widget inside it.
   This widget is invisible to the user, but act as a container around
   other RegExp widgets
   @internal
*/
class ConcWidget :public MultiContainerWidget
{
public:
  ConcWidget(RegExpEditorWindow* editorWindow, QWidget *parent,
             const char *name = 0);
  ConcWidget(RegExpEditorWindow* editorWindow, RegExpWidget *child,
             QWidget *parent, const char *name=0);
  ConcWidget( RegExpEditorWindow* editorWindow, ConcWidget* origConc,
              unsigned int start, unsigned int end);
  ConcWidget( ConcRegExp* regexp, RegExpEditorWindow* editorWindow,
              QWidget* parent, const char* name = 0);
  void init();

  virtual QSize sizeHint() const;
	virtual RegExp* regExp() const;
  virtual bool updateSelection(bool parentSelected);
  virtual bool isSelected() const;

  virtual void applyRegExpToSelection( RegExpType type );
  virtual RegExpType type() const { return CONC; }
  virtual RegExp* selection() const;
  virtual void addNewConcChild(DragAccepter *accepter, ConcWidget *child);
  virtual bool validateSelection() const;
  virtual bool acceptWidgetInsert( RegExpType ) const { return false; }
  virtual bool acceptWidgetPaste() const { return false; }
  bool hasAnyChildren() { return _children.count() > 1; }

protected:
  virtual void paintEvent( QPaintEvent *e );
  virtual void mousePressEvent ( QMouseEvent* event );
  void sizeAccepter( DragAccepter* accepter, int height, int totHeight );
  void getSelectionIndexes( int* start, int* end );
  virtual void dragEnterEvent(QDragEnterEvent* event) { event->accept( false ); }

private:
  int _maxSelectedHeight;
};


#endif // __concwidget