kexidataprovider.h

/* This file is part of the KDE project
   Copyright (C) 2005 Jaroslaw Staniek <js@iidea.pl>
 
   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., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#ifndef KEXIFORMDATAPROVIDER_H
#define KEXIFORMDATAPROVIDER_H
 
#include "kexiformdataiteminterface.h"
#include <tqptrdict.h>
#include <tqdict.h>
 
class KexiTableItem;
namespace KexiDB {
    class QuerySchema;
}


class KEXIFORMUTILS_EXPORT KexiFormDataProvider : public KexiDataItemChangesListener
{
    public:
        KexiFormDataProvider();
        virtual ~KexiFormDataProvider();

        void setMainDataSourceWidget(TQWidget* mainWidget);
 
        TQStringList usedDataSources() const { return m_usedDataSources; }
 
        //unused TQPtrList<KexiFormDataItemInterface>& dataItems() { return m_dataItems; }

        void fillDataItems(KexiTableItem& row, bool cursorAtNewRow);

        virtual void valueChanged(KexiDataItemInterface* item);

        virtual bool cursorAtNewRow() const;

        void invalidateDataSources( const TQDict<char>& invalidSources, 
            KexiDB::QuerySchema* query = 0 );

        void fillDuplicatedDataItems(KexiFormDataItemInterface* item, const TQVariant& value);
 
    protected:
        TQWidget *m_mainWidget;
        TQPtrDict<char> *m_duplicatedItems;
        typedef TQMap<KexiFormDataItemInterface*,uint> KexiFormDataItemInterfaceToIntMap;
        TQPtrList<KexiFormDataItemInterface> m_dataItems;
        TQStringList m_usedDataSources;
        KexiFormDataItemInterfaceToIntMap m_fieldNumbersForDataItems;
        bool m_disableFillDuplicatedDataItems : 1;
};
 
#endif