kexi

kexidbcheckbox.h

00001 /* This file is part of the KDE project
00002    Copyright (C) 2005 Cedric Pasteur <cedric.pasteur@free.fr>
00003    Copyright (C) 2004-2006 Jaroslaw Staniek <js@iidea.pl>
00004 
00005    This program is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Library General Public
00007    License as published by the Free Software Foundation; either
00008    version 2 of the License, or (at your option) any later version.
00009 
00010    This program is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Library General Public License for more details.
00014 
00015    You should have received a copy of the GNU Library General Public License
00016    along with this program; see the file COPYING.  If not, write to
00017    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018  * Boston, MA 02110-1301, USA.
00019 */
00020 
00021 #ifndef KexiDBCheckBox_H
00022 #define KexiDBCheckBox_H
00023 
00024 #include "kexiformdataiteminterface.h"
00025 #include <qcheckbox.h>
00026 
00028 class KEXIFORMUTILS_EXPORT KexiDBCheckBox : public QCheckBox, public KexiFormDataItemInterface
00029 {
00030     Q_OBJECT
00031     Q_PROPERTY(QString dataSource READ dataSource WRITE setDataSource DESIGNABLE true)
00032     Q_PROPERTY(QCString dataSourceMimeType READ dataSourceMimeType WRITE setDataSourceMimeType DESIGNABLE true)
00033     Q_OVERRIDE( Tristate tristate READ isTristate WRITE setTristate )
00034     Q_ENUMS( Tristate )
00035 
00036     public:
00037         KexiDBCheckBox(const QString &text, QWidget *parent, const char *name=0);
00038         virtual ~KexiDBCheckBox();
00039 
00040         inline QString dataSource() const { return KexiFormDataItemInterface::dataSource(); }
00041         inline QCString dataSourceMimeType() const { return KexiFormDataItemInterface::dataSourceMimeType(); }
00042         virtual QVariant value();
00043         virtual void setInvalidState( const QString& displayText );
00044 
00047         virtual bool valueIsNull();
00048 
00053         virtual bool valueIsEmpty();
00054 
00056         virtual bool isReadOnly() const;
00057 
00059         virtual QWidget* widget();
00060 
00061         virtual bool cursorAtStart();
00062         virtual bool cursorAtEnd();
00063         virtual void clear();
00064 
00065         virtual void setEnabled(bool enabled);
00066 
00067         enum Tristate { TristateDefault, TristateOn, TristateOff };
00068 
00069         void setTristate(Tristate tristate);
00070         Tristate isTristate() const;
00071 
00073         virtual void setDisplayDefaultValue(QWidget* widget, bool displayDefaultValue);
00074 
00075     public slots:
00076         void setDataSource(const QString &ds);
00077         inline void setDataSourceMimeType(const QCString &ds) { KexiFormDataItemInterface::setDataSourceMimeType(ds); }
00078         void slotStateChanged(int state);
00079 
00081         virtual void setReadOnly( bool readOnly );
00082 
00083     protected:
00084         virtual void setValueInternal(const QVariant& add, bool removeOld);
00085 
00088         bool isTristateInternal() const;
00089 
00091         void updateTristate();
00092 
00093     private:
00094         bool m_invalidState : 1;
00095         bool m_tristateChanged : 1; 
00096         Tristate m_tristate; 
00097 };
00098 
00099 #endif
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