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101 lines
3.7 KiB
101 lines
3.7 KiB
/* This file is part of the KDE project
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Copyright (C) 2005 Cedric Pasteur <cedric.pasteur@free.fr>
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Copyright (C) 2004-2006 Jaroslaw Staniek <js@iidea.pl>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KexiDBCheckBox_H
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#define KexiDBCheckBox_H
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#include "kexiformdataiteminterface.h"
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#include <tqcheckbox.h>
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//! @short A db-aware check box
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class KEXIFORMUTILS_EXPORT KexiDBCheckBox : public TQCheckBox, public KexiFormDataItemInterface
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{
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Q_OBJECT
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TQ_PROPERTY(TQString dataSource READ dataSource WRITE setDataSource DESIGNABLE true)
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TQ_PROPERTY(TQCString dataSourceMimeType READ dataSourceMimeType WRITE setDataSourceMimeType DESIGNABLE true)
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TQ_OVERRIDE( Tristate tristate READ isTristate WRITE setTristate )
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TQ_ENUMS( Tristate )
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public:
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KexiDBCheckBox(const TQString &text, TQWidget *parent, const char *name=0);
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virtual ~KexiDBCheckBox();
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inline TQString dataSource() const { return KexiFormDataItemInterface::dataSource(); }
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inline TQCString dataSourceMimeType() const { return KexiFormDataItemInterface::dataSourceMimeType(); }
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virtual TQVariant value();
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virtual void setInvalidState( const TQString& displayText );
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//! \return true if editor's value is null (not empty)
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//! Used for checking if a given constraint within table of form is met.
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virtual bool valueIsNull();
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//! \return true if editor's value is empty (not necessary null).
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//! Only few data types can accept "EMPTY" property
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//! (use KexiDB::Field::hasEmptyProperty() to check this).
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//! Used for checking if a given constraint within table or form is met.
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virtual bool valueIsEmpty();
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/*! \return 'readOnly' flag for this widget. */
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virtual bool isReadOnly() const;
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/*! \return the view widget of this item, e.g. line edit widget. */
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virtual TQWidget* widget();
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virtual bool cursorAtStart();
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virtual bool cursorAtEnd();
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virtual void clear();
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virtual void setEnabled(bool enabled);
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enum Tristate { TristateDefault, TristateOn, TristateOff };
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void setTristate(Tristate tristate);
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Tristate isTristate() const;
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/*! Reimplemented after KexiFormDataItemInterface. */
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virtual void setDisplayDefaultValue(TQWidget* widget, bool displayDefaultValue);
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public slots:
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void setDataSource(const TQString &ds);
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inline void setDataSourceMimeType(const TQCString &ds) { KexiFormDataItemInterface::setDataSourceMimeType(ds); }
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void slotStateChanged(int state);
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//! This implementation just disables read only widget
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virtual void setReadOnly( bool readOnly );
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protected:
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virtual void setValueInternal(const TQVariant& add, bool removeOld);
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//! \return true in isTristate() == TristateDefault and the widget has bound data source
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//! or if isTristate() == TristateOn, else false is returned.
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bool isTristateInternal() const;
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//! Updates tristate in TQCheckBox itself according to m_tristate.
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void updateTristate();
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private:
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bool m_invalidState : 1;
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bool m_tristateChanged : 1; //!< used in setTristate()
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Tristate m_tristate; //!< used in isTristate() and setTristate()
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};
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#endif
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