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src/qt/src/sql/qdatabrowser.h
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00001 /****************************************************************************
00002 **
00003 ** Definition of QDataBrowser class
00004 **
00005 ** Created : 2000-11-03
00006 **
00007 ** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
00008 **
00009 ** This file is part of the sql module of the Qt GUI Toolkit.
00010 **
00011 ** This file may be distributed under the terms of the Q Public License
00012 ** as defined by Trolltech ASA of Norway and appearing in the file
00013 ** LICENSE.QPL included in the packaging of this file.
00014 **
00015 ** This file may be distributed and/or modified under the terms of the
00016 ** GNU General Public License version 2 as published by the Free Software
00017 ** Foundation and appearing in the file LICENSE.GPL included in the
00018 ** packaging of this file.
00019 **
00020 ** Licensees holding valid Qt Enterprise Edition licenses may use this
00021 ** file in accordance with the Qt Commercial License Agreement provided
00022 ** with the Software.
00023 **
00024 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00025 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00026 **
00027 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00028 **   information about Qt Commercial License Agreements.
00029 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00030 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00031 **
00032 ** Contact info@trolltech.com if any conditions of this licensing are
00033 ** not clear to you.
00034 **
00035 **********************************************************************/
00036 
00037 #ifndef QDATABROWSER_H
00038 #define QDATABROWSER_H
00039 
00040 #ifndef QT_H
00041 #include "qwidget.h"
00042 #include "qstring.h"
00043 #include "qstringlist.h"
00044 #include "qsql.h"
00045 #include "qsqlindex.h"
00046 #include "qsqlcursor.h"
00047 #include "qsqlerror.h"
00048 #endif // QT_H
00049 
00050 #ifndef QT_NO_SQL_VIEW_WIDGETS
00051 
00052 class QSqlForm;
00053 class QDataBrowserPrivate;
00054 
00055 class Q_EXPORT QDataBrowser : public QWidget
00056 {
00057     Q_OBJECT
00058     Q_PROPERTY( bool boundaryChecking READ boundaryChecking WRITE setBoundaryChecking )
00059     Q_PROPERTY( QString filter READ filter WRITE setFilter )
00060     Q_PROPERTY( QStringList sort READ sort WRITE setSort )
00061     Q_PROPERTY( bool confirmEdits READ confirmEdits WRITE setConfirmEdits )
00062     Q_PROPERTY( bool confirmInsert READ confirmInsert WRITE setConfirmInsert )
00063     Q_PROPERTY( bool confirmUpdate READ confirmUpdate WRITE setConfirmUpdate )
00064     Q_PROPERTY( bool confirmDelete READ confirmDelete WRITE setConfirmDelete )
00065     Q_PROPERTY( bool confirmCancels READ confirmCancels WRITE setConfirmCancels )
00066     Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
00067     Q_PROPERTY( bool autoEdit READ autoEdit WRITE setAutoEdit )
00068 
00069 public:
00070     QDataBrowser( QWidget* parent=0, const char* name=0, WFlags fl = 0 );
00071     ~QDataBrowser();
00072 
00073     enum Boundary {
00074         Unknown,
00075         None,
00076         BeforeBeginning,
00077         Beginning,
00078         End,
00079         AfterEnd
00080     };
00081 
00082     Boundary boundary();
00083     void setBoundaryChecking( bool active );
00084     bool boundaryChecking() const;
00085 
00086     void setSort( const QSqlIndex& sort );
00087     void setSort( const QStringList& sort );
00088     QStringList  sort() const;
00089     void setFilter( const QString& filter );
00090     QString filter() const;
00091     virtual void setSqlCursor( QSqlCursor* cursor, bool autoDelete = FALSE );
00092     QSqlCursor* sqlCursor() const;
00093     virtual void setForm( QSqlForm* form );
00094     QSqlForm* form();
00095 
00096     virtual void setConfirmEdits( bool confirm );
00097     virtual void setConfirmInsert( bool confirm );
00098     virtual void setConfirmUpdate( bool confirm );
00099     virtual void setConfirmDelete( bool confirm );
00100     virtual void setConfirmCancels( bool confirm );
00101     bool confirmEdits() const;
00102     bool confirmInsert() const;
00103     bool confirmUpdate() const;
00104     bool confirmDelete() const;
00105     bool confirmCancels() const;
00106 
00107     virtual void setReadOnly( bool active );
00108     bool isReadOnly() const;
00109     virtual void setAutoEdit( bool autoEdit );
00110     bool autoEdit() const;
00111 
00112     virtual bool seek( int i, bool relative = FALSE );
00113 
00114 signals:
00115     void firstRecordAvailable( bool available );
00116     void lastRecordAvailable( bool available );
00117     void nextRecordAvailable( bool available );
00118     void prevRecordAvailable( bool available );
00119 
00120     void currentChanged( const QSqlRecord* record );
00121     void primeInsert( QSqlRecord* buf );
00122     void primeUpdate( QSqlRecord* buf );
00123     void primeDelete( QSqlRecord* buf );
00124     void beforeInsert( QSqlRecord* buf );
00125     void beforeUpdate( QSqlRecord* buf );
00126     void beforeDelete( QSqlRecord* buf );
00127     void cursorChanged( QSqlCursor::Mode mode );
00128 
00129 public slots:
00130     virtual void refresh();
00131 
00132     virtual void insert();
00133     virtual void update();
00134     virtual void del();
00135 
00136     virtual void first();
00137     virtual void last();
00138     virtual void next();
00139     virtual void prev();
00140 
00141     virtual void readFields();
00142     virtual void writeFields();
00143     virtual void clearValues();
00144 
00145     void updateBoundary();
00146 
00147 protected:
00148     virtual bool insertCurrent();
00149     virtual bool updateCurrent();
00150     virtual bool deleteCurrent();
00151     virtual bool currentEdited();
00152 
00153     virtual QSql::Confirm confirmEdit( QSql::Op m );
00154     virtual QSql::Confirm confirmCancel( QSql::Op m );
00155 
00156     virtual void handleError( const QSqlError& error );
00157 
00158 private:
00159     typedef bool (QSqlCursor::*Nav)();
00160     bool preNav();
00161     void postNav( bool primeUpd );
00162     void nav( Nav nav );
00163     QDataBrowserPrivate* d;
00164 
00165 #if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
00166     QDataBrowser( const QDataBrowser & );
00167     QDataBrowser &operator=( const QDataBrowser & );
00168 #endif
00169 };
00170 
00171 
00172 #endif
00173 #endif
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