ntqdatatable.h Include File

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# ntqdatatable.h

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

    /****************************************************************************
    **
    ** Definition of TQDataTable 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 TQDATATABLE_H
    #define TQDATATABLE_H

    #ifndef QT_H
    #include "ntqstring.h"
    #include "ntqvariant.h"
    #include "ntqtable.h"
    #include "ntqsql.h"
    #include "ntqsqlcursor.h"
    #include "ntqsqlindex.h"
    #include "ntqsqleditorfactory.h"
    #include "ntqiconset.h"
    #endif // QT_H

    #if !defined( TQT_MODULE_SQL ) || defined( QT_LICENSE_PROFESSIONAL )
    #define TQM_EXPORT_SQL
    #else
    #define TQM_EXPORT_SQL TQ_EXPORT
    #endif

    #ifndef TQT_NO_SQL_VIEW_WIDGETS

    class TQPainter;
    class TQSqlField;
    class TQSqlPropertyMap;
    class TQDataTablePrivate;

    class TQM_EXPORT_SQL TQDataTable : public TQTable
    {
        TQ_OBJECT

        TQ_PROPERTY( TQString nullText READ nullText WRITE setNullText )
        TQ_PROPERTY( TQString trueText READ trueText WRITE setTrueText )
        TQ_PROPERTY( TQString falseText READ falseText WRITE setFalseText )
        TQ_PROPERTY( DateFormat dateFormat READ dateFormat WRITE setDateFormat )
        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 autoEdit READ autoEdit WRITE setAutoEdit )
        TQ_PROPERTY( TQString filter READ filter WRITE setFilter )
        TQ_PROPERTY( TQStringList sort READ sort WRITE setSort )
        TQ_PROPERTY( int numCols READ numCols )
        TQ_PROPERTY( int numRows READ numRows )

    public:
        TQDataTable ( TQWidget* parent=0, const char* name=0 );
        TQDataTable ( TQSqlCursor* cursor, bool autoPopulate = false, TQWidget* parent=0, const char* name=0 );
        ~TQDataTable();

        virtual void addColumn( const TQString& fieldName,
    			    const TQString& label = TQString::null,
    			    int width = -1,
    			    const TQIconSet& iconset = TQIconSet() );
        virtual void removeColumn( uint col );
        virtual void setColumn( uint col, const TQString& fieldName,
    			    const TQString& label = TQString::null,
    			    int width = -1,
    			    const TQIconSet& iconset = TQIconSet() );

        TQString      nullText() const;
        TQString      trueText() const;
        TQString      falseText() const;
        DateFormat   dateFormat() const;
        bool         confirmEdits() const;
        bool         confirmInsert() const;
        bool         confirmUpdate() const;
        bool         confirmDelete() const;
        bool         confirmCancels() const;
        bool         autoDelete() const;
        bool         autoEdit() const;
        TQString      filter() const;
        TQStringList  sort() const;

        virtual void setSqlCursor( TQSqlCursor* cursor = 0,
    			    bool autoPopulate = false, bool autoDelete = false );
        TQSqlCursor* sqlCursor() const;

        virtual void setNullText( const TQString& nullText );
        virtual void setTrueText( const TQString& trueText );
        virtual void setFalseText( const TQString& falseText );
        virtual void setDateFormat( const DateFormat f );
        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 );
        virtual void setAutoDelete( bool enable );
        virtual void setAutoEdit( bool autoEdit );
        virtual void setFilter( const TQString& filter );
        virtual void setSort( const TQStringList& sort );
        virtual void setSort( const TQSqlIndex& sort );

        enum Refresh {
    	RefreshData = 1,
    	RefreshColumns = 2,
    	RefreshAll = 3
        };
        void         refresh( Refresh mode );
        void         sortColumn ( int col, bool ascending = true,
    			      bool wholeRows = false );
        TQString      text ( int row, int col ) const;
        TQVariant     value ( int row, int col ) const;
        TQSqlRecord*  currentRecord() const;

        void         installEditorFactory( TQSqlEditorFactory * f );
        void         installPropertyMap( TQSqlPropertyMap* m );

        int          numCols() const;
        int          numRows() const;
        void         setNumCols( int c );
        void         setNumRows ( int r );
        bool         findBuffer( const TQSqlIndex& idx, int atHint = 0 );

        void 	 hideColumn( int col );
        void 	 showColumn( int col );
    signals:
        void         currentChanged( 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( TQSql::Op mode );

    public slots:
        virtual void find( const TQString & str, bool caseSensitive,
    			     bool backwards );
        virtual void sortAscending( int col );
        virtual void sortDescending( int col );
        virtual void refresh();
        void setColumnWidth( int col, int w );
        void adjustColumn( int col );
        void setColumnStretchable( int col, bool stretch );
        void swapColumns( int col1, int col2, bool swapHeaders = false );

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

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

        virtual void handleError( const TQSqlError& e );

        virtual bool beginInsert();
        virtual TQWidget* beginUpdate ( int row, int col, bool replace );

        bool         eventFilter( TQObject *o, TQEvent *e );
        void         keyPressEvent( TQKeyEvent* );
        void         resizeEvent ( TQResizeEvent * );
        void         contentsMousePressEvent( TQMouseEvent* e );
        void         contentsContextMenuEvent( TQContextMenuEvent* e );
        void         endEdit( int row, int col, bool accept, bool replace );
        TQWidget *    createEditor( int row, int col, bool initFromCell ) const;
        void         activateNextCell();
        int          indexOf( uint i ) const; // ### make this public in 4.0
        void         reset();
        void         setSize( TQSqlCursor* sql );
        void         repaintCell( int row, int col );
        void         paintCell ( TQPainter * p, int row, int col, const TQRect & cr,
    			     bool selected, const TQColorGroup &cg );
        virtual void paintField( TQPainter * p, const TQSqlField* field, const TQRect & cr,
    			     bool selected );
        void	 drawContents( TQPainter * p, int cx, int cy, int cw, int ch );
        virtual int  fieldAlignment( const TQSqlField* field );
        void         columnClicked ( int col );
        void         resizeData ( int len );

        TQTableItem * item ( int row, int col ) const;
        void         setItem ( int row, int col, TQTableItem * item );
        void         clearCell ( int row, int col ) ;
        void         setPixmap ( int row, int col, const TQPixmap & pix );
        void         takeItem ( TQTableItem * i );

    private slots:
        void         loadNextPage();
        void         setCurrentSelection( int row, int col );
        void         updateCurrentSelection();
        void 	 sliderPressed();
        void 	 sliderReleased();
        void	 doInsertCurrent();
        void	 doUpdateCurrent();

    private:
        TQString 	 fieldToString( const TQSqlField * field );
        void         init();
        TQWidget*     beginEdit ( int row, int col, bool replace );
        void         updateRow( int row );
        void         endInsert();
        void         endUpdate();
        TQDataTablePrivate* d;

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

    #endif
    #endif