ntqdatabrowser.h Include File

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# ntqdatabrowser.h

This is the verbatim text of the ntqdatabrowser.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    **
    ** Definition of TQDataBrowser class
    **
    ** Created : 2000-11-03
    **
    ** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the sql module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQDATABROWSER_H
    #define TQDATABROWSER_H

    #ifndef QT_H
    #include "ntqwidget.h"
    #include "ntqstring.h"
    #include "ntqstringlist.h"
    #include "ntqsql.h"
    #include "ntqsqlindex.h"
    #include "ntqsqlcursor.h"
    #include "ntqsqlerror.h"
    #endif // QT_H

    #ifndef TQT_NO_SQL_VIEW_WIDGETS

    class TQSqlForm;
    class TQDataBrowserPrivate;

    class TQ_EXPORT TQDataBrowser : public TQWidget
    {
        TQ_OBJECT
        TQ_PROPERTY( bool boundaryChecking READ boundaryChecking WRITE setBoundaryChecking )
        TQ_PROPERTY( TQString filter READ filter WRITE setFilter )
        TQ_PROPERTY( TQStringList sort READ sort WRITE setSort )
        TQ_PROPERTY( bool confirmEdits READ confirmEdits WRITE setConfirmEdits )
        TQ_PROPERTY( bool confirmInsert READ confirmInsert WRITE setConfirmInsert )
        TQ_PROPERTY( bool confirmUpdate READ confirmUpdate WRITE setConfirmUpdate )
        TQ_PROPERTY( bool confirmDelete READ confirmDelete WRITE setConfirmDelete )
        TQ_PROPERTY( bool confirmCancels READ confirmCancels WRITE setConfirmCancels )
        TQ_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
        TQ_PROPERTY( bool autoEdit READ autoEdit WRITE setAutoEdit )

    public:
        TQDataBrowser( TQWidget* parent=0, const char* name=0, WFlags fl = 0 );
        ~TQDataBrowser();

        enum Boundary {
    	Unknown,
    	None,
    	BeforeBeginning,
    	Beginning,
    	End,
    	AfterEnd
        };

        Boundary boundary();
        void setBoundaryChecking( bool active );
        bool boundaryChecking() const;

        void setSort( const TQSqlIndex& sort );
        void setSort( const TQStringList& sort );
        TQStringList  sort() const;
        void setFilter( const TQString& filter );
        TQString filter() const;
        virtual void setSqlCursor( TQSqlCursor* cursor, bool autoDelete = false );
        TQSqlCursor* sqlCursor() const;
        virtual void setForm( TQSqlForm* form );
        TQSqlForm* form();

        virtual void setConfirmEdits( bool confirm );
        virtual void setConfirmInsert( bool confirm );
        virtual void setConfirmUpdate( bool confirm );
        virtual void setConfirmDelete( bool confirm );
        virtual void setConfirmCancels( bool confirm );
        bool confirmEdits() const;
        bool confirmInsert() const;
        bool confirmUpdate() const;
        bool confirmDelete() const;
        bool confirmCancels() const;

        virtual void setReadOnly( bool active );
        bool isReadOnly() const;
        virtual void setAutoEdit( bool autoEdit );
        bool autoEdit() const;

        virtual bool seek( int i, bool relative = false );

    signals:
        void firstRecordAvailable( bool available );
        void lastRecordAvailable( bool available );
        void nextRecordAvailable( bool available );
        void prevRecordAvailable( bool available );

        void currentChanged( const TQSqlRecord* record );
        void primeInsert( TQSqlRecord* buf );
        void primeUpdate( TQSqlRecord* buf );
        void primeDelete( TQSqlRecord* buf );
        void beforeInsert( TQSqlRecord* buf );
        void beforeUpdate( TQSqlRecord* buf );
        void beforeDelete( TQSqlRecord* buf );
        void cursorChanged( TQSqlCursor::Mode mode );

    public slots:
        virtual void refresh();

        virtual void insert();
        virtual void update();
        virtual void del();

        virtual void first();
        virtual void last();
        virtual void next();
        virtual void prev();

        virtual void readFields();
        virtual void writeFields();
        virtual void clearValues();

        void updateBoundary();

    protected:
        virtual bool insertCurrent();
        virtual bool updateCurrent();
        virtual bool deleteCurrent();
        virtual bool currentEdited();

        virtual TQSql::Confirm confirmEdit( TQSql::Op m );
        virtual TQSql::Confirm confirmCancel( TQSql::Op m );

        virtual void handleError( const TQSqlError& error );

    private:
        typedef bool (TQSqlCursor::*Nav)();
        bool preNav();
        void postNav( bool primeUpd );
        void nav( Nav nav );
        TQDataBrowserPrivate* d;

    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQDataBrowser( const TQDataBrowser & );
        TQDataBrowser &operator=( const TQDataBrowser & );
    #endif
    };

    #endif
    #endif