/* This file is part of the KDE project
   Copyright (C) 2002 Carsten Pfeiffer <pfeiffer@kde.org>

   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, version 2.

   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; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef PROPERTYSHEET_H
#define PROPERTYSHEET_H

#include <qdom.h>
#include <qstring.h>
#include <qptrlist.h>

class QWidget;

namespace KMrml
{
    class PropertySheet
    {
    public:
        enum Type
        {
            MultiSet = 1,       // ??
            Subset,             // radio-button/combobox or listbox
            SetElement,         // CheckBox -> disables/enables children?
            Boolean,            // CheckBox
            Numeric,            // Slider/Spinbox
            Textual,            // lineedit
            Panel,              // groupbox?
            Clone,
            Reference
        };
        enum Visibility
        {
            Visible,
            Invisible,
            Popup
        };
        enum SendType
        {
            Element = 1,
            Attribute,
            AttributeName,
            AttributeValue,
            Children,
            None
        };

        PropertySheet();
        PropertySheet( const QDomElement& elem );
        PropertySheet( const PropertySheet& ps );
        ~PropertySheet() {};

        PropertySheet& operator=( const PropertySheet& ps );

        bool isValid() const {
            // required mrml attributes
            return !m_id.isNull() && m_type != 0 && m_sendType != 0;
        }
        void initFromDOM( const QDomElement& elem );

        void toElement( QDomElement& parent );

        QWidget * createWidget( QWidget *parent, const char *name = 0 );

    private:
        static Visibility getVisibility( const QString& value );
        static Type getType( const QString& value );
        static SendType getSendType( const QString& value );
        static int toInt( const QString& value, int defaultValue = 0 );

        void init();


        // update operator=() when adding data members!

        QPtrList<PropertySheet> m_subSheets;
        Visibility m_visibility;
        Type m_type;
        QString m_caption;
        QString m_id;

        SendType m_sendType;
        QString m_sendName;
        QString m_sendValue;

        int m_minRange;
        int m_maxRange;
        int m_stepSize;

        // Type = Subset && m_minSubsetSize == m_maxSubsetSize == 1 -> Combobox
        // or radio buttons.
        // > max > 1  -> Listbox with multiselection
        int m_minSubsetSize;
        int m_maxSubsetSize;

    };

}

#endif // PROPERTYSHEET_H
