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

**

** 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_P_H

#define HBCOMBOBOX_P_H

#include "hbdialog_p.h"

#include "hbcombodropdown_p.h"

#include "hblineedit_p.h"

#include "hbwidget_p.h"

#include <hbcombobox.h>

#include <hblineedit.h>

#include <hbwidgetfeedback.h>

#include <hbinputeditorinterface.h>

#include <hbinputvkbhost.h>

#include <hblistviewitem.h>

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

class QGraphicsLayoutItem;

class HbDialog;

class HbComboDropDown;

class QModelIndex;

class QSortFilterProxyModel;

class QCompleter;

class HbCustomLineEdit;

class QGraphicsItem;

class HbTextItem;

class HbComboBoxPrivate : public HbWidgetPrivate

{

    Q_DECLARE_PUBLIC( HbComboBox )

public:

    HbComboBoxPrivate( );

    ~HbComboBoxPrivate( );

    void init( );

    void createPrimitives( );

    void setModel( QAbstractItemModel * model );

    void positionDropDown( );

    void setCompletion( bool completion );

    void setEditable(  bool editable );

    QString itemText( const QModelIndex &index ) const;

    QIcon itemIcon( const QModelIndex &index ) const;

    int itemRole( ) const;

    void addDropDownToScene( );

    void setCurrentIndex( const QModelIndex &index );

    void touchAreaPressEvent( );

    void touchAreaReleaseEvent( );

    void touchAreaClicked( );

    void vkbOpened( );

    void vkbClosed( );

    void _q_textChanged( const QModelIndex & aIndex );

    void _q_textCompleted( const QModelIndex & aIndex );

    void _q_textChanged( const QString & aString );

    void currentIndexChanged( const QModelIndex &index );

    QModelIndex findData( const QVariant &data ) const;

    void showPopup( QAbstractItemModel* aModel, QModelIndex aIndex = QModelIndex( ) );

    void createDropDown( );

    void calculateListItemHeight( );

public:

    HbCustomLineEdit* mLineEdit;

    QGraphicsItem* mTextItem;

    QGraphicsItem *mButton;

    HbComboDropDown* mDropDown;

    QAbstractItemModel* mModel;

    QSortFilterProxyModel* mProxyModel;

    QModelIndex mCurrentIndex;

    QCompleter* mCompleter;

    HbComboBox::InsertPolicy insertPolicy;

    QGraphicsItem *mBackgroundItem;

    QGraphicsItem *mButtonTouchAreaItem;

    bool mIsDown;

    bool mEditable;    

    bool mIsDorpdownCreated;

    bool mIsDropwnToSceneAdded;

    bool mHasDownEffect;

    bool mHasUpEffect;

    QString mText;

    qreal mListItemHeight;

    int mDropDownRowsInPortrait;

    int mDropDownRowsInLandscape;

};

class HbComboListViewItem : public HbListViewItem

{

    Q_OBJECT

public:

    explicit HbComboListViewItem ( QGraphicsItem *parent = 0 ) : HbListViewItem( parent ) {

    }

    HbAbstractViewItem *createItem( ) {

        return new HbComboListViewItem( *this );

    }

};

class HbCustomLineEdit : public HbLineEdit

{

    Q_OBJECT

public:

    HbCustomLineEdit( QGraphicsWidget *parent, HbComboBoxPrivate *comboPriv ) :

        HbLineEdit( *new HbLineEditPrivate, parent ),

        comboBoxPrivate( comboPriv ),

        VkbLaunched( false ) {

    }

    void setLongPressEnabled( bool enable = true ) {

        if( enable ) {

            scrollArea( )->setLongPressEnabled( true );

        } else {

            scrollArea( )->setLongPressEnabled( false );

        }

    }

protected:

    void focusInEvent( QFocusEvent *event ) {

        HbEditorInterface editorInterface( this );

        HbVkbHost *host = editorInterface.vkbHost( );

        if ( host && !VkbLaunched ) {

            VkbLaunched = true;

            connect( host, SIGNAL( keypadClosed (  ) ), comboBoxPrivate->mDropDown,

                SLOT( keypadClosed(  ) ) );

            connect( host, SIGNAL( keypadOpened (  ) ), comboBoxPrivate->mDropDown,

                SLOT( keypadOpened(  ) ) );

        }

        HbLineEdit::focusInEvent( event );

    }

private:

    HbComboBoxPrivate *comboBoxPrivate;

    bool VkbLaunched;

};

#endif // HBCOMBOBOX_P_H