src/qt/include/qdatatable.h

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/****************************************************************************
**
** Definition of QDataTable class
**
** Created : 2000-11-03
**
** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
**
** This file is part of the sql module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech ASA of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition licenses may use this
** file in accordance with the Qt Commercial License Agreement provided
** with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef QDATATABLE_H
#define QDATATABLE_H

#ifndef QT_H
#include "qstring.h"
#include "qvariant.h"
#include "qtable.h"
#include "qsql.h"
#include "qsqlcursor.h"
#include "qsqlindex.h"
#include "qsqleditorfactory.h"
#include "qiconset.h"
#endif // QT_H

#if !defined( QT_MODULE_SQL ) || defined( QT_LICENSE_PROFESSIONAL )
#define QM_EXPORT_SQL
#else
#define QM_EXPORT_SQL Q_EXPORT
#endif

#ifndef QT_NO_SQL_VIEW_WIDGETS

class QPainter;
class QSqlField;
class QSqlPropertyMap;
class QDataTablePrivate;

class QM_EXPORT_SQL QDataTable : public QTable
{
    Q_OBJECT

    Q_PROPERTY( QString nullText READ nullText WRITE setNullText )
    Q_PROPERTY( QString trueText READ trueText WRITE setTrueText )
    Q_PROPERTY( QString falseText READ falseText WRITE setFalseText )
    Q_PROPERTY( DateFormat dateFormat READ dateFormat WRITE setDateFormat )
    Q_PROPERTY( bool confirmEdits READ confirmEdits WRITE setConfirmEdits )
    Q_PROPERTY( bool confirmInsert READ confirmInsert WRITE setConfirmInsert )
    Q_PROPERTY( bool confirmUpdate READ confirmUpdate WRITE setConfirmUpdate )
    Q_PROPERTY( bool confirmDelete READ confirmDelete WRITE setConfirmDelete )
    Q_PROPERTY( bool confirmCancels READ confirmCancels WRITE setConfirmCancels )
    Q_PROPERTY( bool autoEdit READ autoEdit WRITE setAutoEdit )
    Q_PROPERTY( QString filter READ filter WRITE setFilter )
    Q_PROPERTY( QStringList sort READ sort WRITE setSort )
    Q_PROPERTY( int numCols READ numCols )
    Q_PROPERTY( int numRows READ numRows )

public:
    QDataTable ( QWidget* parent=0, const char* name=0 );
    QDataTable ( QSqlCursor* cursor, bool autoPopulate = FALSE, QWidget* parent=0, const char* name=0 );
    ~QDataTable();

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

    QString      nullText() const;
    QString      trueText() const;
    QString      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;
    QString      filter() const;
    QStringList  sort() const;

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

    virtual void setNullText( const QString& nullText );
    virtual void setTrueText( const QString& trueText );
    virtual void setFalseText( const QString& 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 QString& filter );
    virtual void setSort( const QStringList& sort );
    virtual void setSort( const QSqlIndex& sort );

    enum Refresh {
        RefreshData = 1,
        RefreshColumns = 2,
        RefreshAll = 3
    };
    void         refresh( Refresh mode );
    void         sortColumn ( int col, bool ascending = TRUE,
                              bool wholeRows = FALSE );
    QString      text ( int row, int col ) const;
    QVariant     value ( int row, int col ) const;
    QSqlRecord*  currentRecord() const;

    void         installEditorFactory( QSqlEditorFactory * f );
    void         installPropertyMap( QSqlPropertyMap* m );

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

    void         hideColumn( int col );
    void         showColumn( int col );
signals:
    void         currentChanged( QSqlRecord* record );
    void         primeInsert( QSqlRecord* buf );
    void         primeUpdate( QSqlRecord* buf );
    void         primeDelete( QSqlRecord* buf );
    void         beforeInsert( QSqlRecord* buf );
    void         beforeUpdate( QSqlRecord* buf );
    void         beforeDelete( QSqlRecord* buf );
    void         cursorChanged( QSql::Op mode );

public slots:
    virtual void find( const QString & 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 QSql::Confirm confirmEdit( QSql::Op m );
    virtual QSql::Confirm confirmCancel( QSql::Op m );

    virtual void handleError( const QSqlError& e );

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

    bool         eventFilter( QObject *o, QEvent *e );
    void         keyPressEvent( QKeyEvent* );
    void         resizeEvent ( QResizeEvent * );
    void         contentsMousePressEvent( QMouseEvent* e );
    void         contentsContextMenuEvent( QContextMenuEvent* e );
    void         endEdit( int row, int col, bool accept, bool replace );
    QWidget *    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( QSqlCursor* sql );
    void         repaintCell( int row, int col );
    void         paintCell ( QPainter * p, int row, int col, const QRect & cr,
                             bool selected, const QColorGroup &cg );
    virtual void paintField( QPainter * p, const QSqlField* field, const QRect & cr,
                             bool selected );
    void         drawContents( QPainter * p, int cx, int cy, int cw, int ch );
    virtual int  fieldAlignment( const QSqlField* field );
    void         columnClicked ( int col );
    void         resizeData ( int len );

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

private slots:
    void         loadNextPage();
    void         setCurrentSelection( int row, int col );
    void         updateCurrentSelection();
    void         sliderPressed();
    void         sliderReleased();
    void         doInsertCurrent();
    void         doUpdateCurrent();
    
private:
    QString      fieldToString( const QSqlField * field );
    void         init();
    QWidget*     beginEdit ( int row, int col, bool replace );
    void         updateRow( int row );
    void         endInsert();
    void         endUpdate();
    QDataTablePrivate* d;

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

#endif
#endif