/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef HBCOMBOBOX_H

#define HBCOMBOBOX_H

#include <hbwidget.h>

class HbValidator;

class HbComboBoxPrivate;

class HbStyleOptionComboBox;

class HB_WIDGETS_EXPORT HbComboBox : public HbWidget

{

    Q_OBJECT

    Q_ENUMS( InsertPolicy )

    Q_PROPERTY( bool editable READ isEditable WRITE setEditable ) 

    Q_PROPERTY( int count READ count )

    Q_PROPERTY( QStringList items READ items WRITE setItems )

    Q_PROPERTY( int currentIndex READ currentIndex WRITE setCurrentIndex )

    Q_PROPERTY( QString currentText READ currentText )

public:

    enum InsertPolicy {

        NoInsert,

        InsertAtTop,

        InsertAtCurrent,

        InsertAtBottom,

        InsertAfterCurrent,

        InsertBeforeCurrent,

        InsertAlphabetically

    };

    explicit HbComboBox( QGraphicsItem *parent = 0 );

    virtual ~HbComboBox( );

    enum {

        Type = Hb::ItemType_ComboBox

    };

    int type( ) const {

        return Type; 

    }

    void addItem( const QString &text, const QVariant &userData = QVariant() );

    void addItem( const HbIcon &icon, const QString &text,

        const QVariant &userData = QVariant( ) );

    void addItems( const QStringList &texts );

    void insertItem( int index, const QString &text, const QVariant &userData = QVariant() );

    void insertItem( int index, const HbIcon &icon, const QString &text,

        const QVariant & userData = QVariant( ) );

    void insertItems( int index, const QStringList &texts );

    int count( ) const;

    void setItems( const QStringList &texts );

    QStringList items( ) const;

    void setItemIcon( int index, const HbIcon &icon );

    HbIcon itemIcon( int index ) const;

    void setItemText( int index, const QString &text );

    QString itemText( int index ) const;

    void setModel( QAbstractItemModel *model );

    QAbstractItemModel *model( ) const;

    void setEditable( bool editable );

    bool isEditable( ) const;

    void setItemData( int index, const QVariant &value, int role = Qt::UserRole );

    QVariant itemData( int index, int role = Qt::UserRole ) const;

    void setValidator( HbValidator *validator );

    const HbValidator *validator( ) const;

    QString currentText( ) const;

    int currentIndex( ) const;

    void removeItem( int index );

    inline int findText( const QString &text,

        Qt::MatchFlags flags = Qt::MatchExactly|Qt::MatchCaseSensitive ) const {

            return findData( text, Qt::DisplayRole, flags );

    }

    int findData( const QVariant &data, int role = Qt::UserRole,

        Qt::MatchFlags flags = Qt::MatchExactly|Qt::MatchCaseSensitive ) const;

    QGraphicsItem *primitive( HbStyle::Primitive primitive ) const;

public slots:

    void updatePrimitives( );

    void clear( );

    void clearEditText( );

    void setCurrentIndex( int index );

    void setEditText( const QString &text );

signals:

    void currentIndexChanged( int index );

    void currentIndexChanged( const QString &text );

    void editTextChanged( const QString &text );

    void editingFinished( );

protected:

    HbComboBox( HbComboBoxPrivate &dd, QGraphicsItem *parent = 0 );

    void initStyleOption( HbStyleOptionComboBox *option ) const;

    void resizeEvent( QGraphicsSceneResizeEvent *event );

    void keyPressEvent( QKeyEvent *event );

    void keyReleaseEvent( QKeyEvent *event );

    void changeEvent( QEvent *event );

    bool eventFilter( QObject *obj, QEvent *event );

    QVariant itemChange ( GraphicsItemChange change, const QVariant & value );

    void gestureEvent( QGestureEvent *event );

private:

    Q_DECLARE_PRIVATE_D( d_ptr, HbComboBox )

    Q_DISABLE_COPY( HbComboBox )

    Q_PRIVATE_SLOT( d_func( ), void _q_textChanged( const QModelIndex &aIndex ) )

    Q_PRIVATE_SLOT( d_func( ), void _q_textCompleted( const QModelIndex &aIndex ) )

    Q_PRIVATE_SLOT( d_func( ), void _q_textChanged( const QString &aString ) )

};

#endif // HBCOMBOBOX_H