kexiformdataiteminterface.h

/* This file is part of the KDE project
   Copyright (C) 2005-2006 Jaroslaw Staniek <js@iidea.pl>
 
   This program 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 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */
 
#ifndef KEXIFORMDATAITEMINTERFACE_H
#define KEXIFORMDATAITEMINTERFACE_H
 
#include <widget/utils/kexidisplayutils.h>
#include <kexidataiteminterface.h>
#include <tqwidget.h>
 
namespace KexiDB {
    class Field;
}
 
class KEXIFORMUTILS_EXPORT KexiFormDataItemInterface : public KexiDataItemInterface
{
    public:
        KexiFormDataItemInterface();
        virtual ~KexiFormDataItemInterface();
 
        inline TQString dataSource() const { return m_dataSource; }
 
        inline void setDataSource(const TQString &ds) { m_dataSource = ds; }
 
        inline TQCString dataSourceMimeType() const { return m_dataSourceMimeType; }
 
        inline void setDataSourceMimeType(const TQCString &ds) { m_dataSourceMimeType = ds; }
 
        virtual void setDisplayDefaultValue(TQWidget* widget, bool displayDefaultValue);
 
        virtual bool hasDisplayedDefaultValue() const { return m_displayDefaultValue; }
 
        virtual TQWidget* widget() { return dynamic_cast<TQWidget*>(this); }
 
        virtual void setInvalidState( const TQString& displayText ) = 0;
 
        virtual void setReadOnly( bool readOnly ) = 0;
 
        virtual KexiDB::Field* field() const;
 
        virtual KexiDB::QueryColumnInfo* columnInfo() const { return m_columnInfo; }
 
        virtual void setColumnInfo(KexiDB::QueryColumnInfo* cinfo) { m_columnInfo = cinfo; }
 
        virtual void setVisibleColumnInfo(KexiDB::QueryColumnInfo* cinfo) { Q_UNUSED(cinfo); }
 
        virtual KexiDB::QueryColumnInfo* visibleColumnInfo() const { return columnInfo(); }
 
        virtual void hideWidget() { }
 
        virtual void showWidget() { }
 
        virtual void undoChanges();
 
        /* Cancels editing of the widget's data. This method just looks for 
         the (grand)parent KexiFormScrollView object and calls
         KexiFormScrollView::cancelEditor(). */
        void cancelEditor();
 
        virtual bool keyPressed(TQKeyEvent *ke) { Q_UNUSED(ke); return false; };
 
    protected:
        TQString m_dataSource;
        TQCString m_dataSourceMimeType;
        KexiDB::QueryColumnInfo* m_columnInfo;
        KexiDisplayUtils::DisplayParameters *m_displayParametersForEnteredValue; 
        KexiDisplayUtils::DisplayParameters *m_displayParametersForDefaultValue; 
        bool m_displayDefaultValue : 1; 
 
    friend class KexiDBAutoField;
};
 
#endif