// *************************************************************************
//
// Copyleft 2004-2007 Bruno PAGES  .
//
// This file is part of the BOUML Uml Toolkit.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// e-mail : bouml@free.fr
// home   : http://bouml.free.fr
//
// *************************************************************************

#ifndef CONSTRAINTCANVAS_H
#define CONSTRAINTCANVAS_H

#include "NoteCanvas.h"
#include "BrowserNode.h"

class CdClassCanvas;

class ConstraintCanvas : public NoteCanvas {
  Q_OBJECT
    
  friend class ConstraintDialog;
  friend class ConstraintTable;
  
  protected:
    bool indicate_visible;
    CdClassCanvas * cl;
    QValueList<BrowserNode *> hidden_visible;
    QValueList<BasicData *> connect_list;	// class only
    BrowserNodeList elements;
    
  public:
    ConstraintCanvas(UmlCanvas * canvas, CdClassCanvas *, int x, int y, int id);
    ConstraintCanvas(UmlCanvas * canvas, CdClassCanvas *, QString);
    virtual ~ConstraintCanvas();
    
    virtual void delete_it();

    virtual UmlCode type() const;
    virtual void delete_available(bool & in_model, bool & out_model) const;
    virtual bool copyable() const;
    virtual void history_load(QBuffer &);
    virtual void history_hide();
    virtual void open();
    virtual void menu(const QPoint&);
    
    virtual bool has_drawing_settings() const;
    virtual void edit_drawing_settings(QList<DiagramItem> &);

    virtual void save(QTextStream  & st, bool ref, QString & warning) const;
    static ConstraintCanvas * read(char * &, UmlCanvas *, char *, CdClassCanvas *);
    
    static ConstraintCanvas * compute(UmlCanvas * canvas,
				      CdClassCanvas * cl,
				      ConstraintCanvas * current);
    
  public slots:
    void update();
};

#endif