1 /****************************************************************************

     2 **

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

     4 ** All rights reserved.

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

     6 **

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

     8 **

     9 ** GNU Lesser General Public License Usage

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

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

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

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

    14 ** Public License version 2.1 requirements will be met:

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

    16 **

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

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

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

    20 **

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

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

    23 **

    24 ****************************************************************************/

    25 

    26 #ifndef HBCOMBOBOX_P_H

    27 #define HBCOMBOBOX_P_H

    28 

    29 #include "hbdialog_p.h"

    30 #include "hbcombodropdown_p.h"

    31 #include "hblineedit_p.h"

    32 #include "hbwidget_p.h"

    33 

    34 #include <hbcombobox.h>

    35 #include <hblineedit.h>

    36 #include <hbwidgetfeedback.h>

    37 #include <hbinputeditorinterface.h>

    38 #include <hbinputvkbhost.h>

    39 #include <hblistviewitem.h>

    40 

    41 //

    42 //  W A R N I N G

    43 //  -------------

    44 //

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

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

    47 // version without notice, or even be removed.

    48 //

    49 // We mean it.

    50 //

    51 class QGraphicsLayoutItem;

    52 class HbDialog;

    53 class HbComboDropDown;

    54 class QModelIndex;

    55 class QSortFilterProxyModel;

    56 class QCompleter;

    57 class HbCustomLineEdit;

    58 class QGraphicsItem;

    59 class HbTextItem;

    60 

    61 class HbComboBoxPrivate : public HbWidgetPrivate

    62 {

    63     Q_DECLARE_PUBLIC( HbComboBox )

    64 

    65 public:

    66     HbComboBoxPrivate( );

    67     ~HbComboBoxPrivate( );

    68     void init( );

    69     void createPrimitives();

    70     void setModel( QAbstractItemModel * model );

    71     void positionDropDown( );

    72     void setCompletion( bool completion );

    73     void setEditable(  bool editable );

    74     QString itemText( const QModelIndex &index ) const;

    75     QIcon itemIcon( const QModelIndex &index ) const;

    76     int itemRole( ) const;

    77     void addDropDownToScene( );

    78     void setCurrentIndex( const QModelIndex &index );

    79     void touchAreaPressEvent( );

    80     void touchAreaReleaseEvent( );

    81     void touchAreaClicked( );

    82     void vkbOpened( );

    83     void vkbClosed( );

    84     void _q_textChanged( const QModelIndex & aIndex );

    85     void _q_textCompleted( const QModelIndex & aIndex );

    86     void _q_textChanged( const QString & aString );

    87     void currentIndexChanged( const QModelIndex &index );

    88     QModelIndex findData( const QVariant &data ) const;

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

    90     void createDropDown( );

    91     void calculateListItemHeight();

    92 

    93 public:    

    94     HbCustomLineEdit* mLineEdit;

    95     QGraphicsItem* mTextItem;

    96     QGraphicsItem *mButton;

    97     HbComboDropDown* mDropDown;

    98     QAbstractItemModel* mModel;

    99     QSortFilterProxyModel* mProxyModel;

   100     QModelIndex mCurrentIndex;

   101     QCompleter* mCompleter;

   102     HbComboBox::InsertPolicy insertPolicy;

   103     QGraphicsItem *mBackgroundItem;

   104     QGraphicsItem *mButtonTouchAreaItem;

   105     bool mIsDown;

   106     bool mEditable;    

   107     bool mIsDorpdownCreated;

   108     bool mIsDropwnToSceneAdded;

   109     bool mHasDownEffect;

   110     bool mHasUpEffect;

   111     QString mText;

   112     qreal mListItemHeight;

   113 };

   114 

   115 class HbComboListViewItem : public HbListViewItem

   116 {

   117     Q_OBJECT

   118 public:

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

   120     {

   121     }

   122 

   123     HbAbstractViewItem *createItem()

   124     {

   125         return new HbComboListViewItem(*this);

   126     }   

   127 };

   128 

   129 class HbCustomLineEdit : public HbLineEdit

   130 {

   131 

   132     Q_OBJECT

   133 public:

   134     HbCustomLineEdit( QGraphicsWidget *parent, HbComboBoxPrivate *comboPriv )

   135         :HbLineEdit( *new HbLineEditPrivate, parent ),

   136         comboBoxPrivate( comboPriv ),

   137         VkbLaunched( false )

   138     {

   139         

   140     }

   141 void setLongPressEnabled( bool enable = true ) 

   142      {

   143          if( enable ) {

   144              scrollArea( )->setLongPressEnabled( true );

   145          } else {

   146              scrollArea( )->setLongPressEnabled( false );

   147          }

   148      }

   149 protected:

   150     void focusInEvent( QFocusEvent *event )

   151     {

   152             HbEditorInterface editorInterface(this);

   153             HbVkbHost *host = editorInterface.vkbHost();

   154             if ( host && !VkbLaunched ) {

   155                VkbLaunched = true;

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

   157                        SLOT( keypadClosed(  ) ) );

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

   159                        SLOT( keypadOpened(  ) ) );

   160             }

   161             HbLineEdit::focusInEvent(event);

   162     }

   163 private:

   164     HbComboBoxPrivate *comboBoxPrivate;

   165     bool VkbLaunched;

   166 };

   167 

   168 #endif // HBCOMBOBOX_P_H

   169