1 /*

     2  * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3  * All rights reserved.

     4  * This component and the accompanying materials are made available

     5  * under the terms of "Eclipse Public License v1.0"

     6  * which accompanies this distribution, and is available

     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8  *

     9  * Initial Contributors:

    10  * Nokia Corporation - initial contribution.

    11  *

    12  * Contributors:

    13  *

    14  * Description: Customized scroll area which handles dynamic slide loading in

    15  *              unifiedviewer

    16  *

    17  */

    18 #ifndef UNISCROLL_AREA_H

    19 #define UNISCROLL_AREA_H

    20 

    21 #include <hbwidget.h>

    22 #include <hbscrollarea.h>

    23 #include <qobject.h>

    24 #include <QTimer>

    25 

    26 class QGraphicsItem;

    27 /**

    28  * Customized scroll area which handles dynamic slide loading in unifiedviewer

    29  */

    30 class UniScrollArea : public HbScrollArea

    31 {

    32 Q_OBJECT

    33 

    34 public:

    35     /**

    36      * Constructor

    37      */

    38     UniScrollArea(QGraphicsItem * parent = 0);

    39 

    40     /**

    41      * Destructor

    42      */

    43     ~UniScrollArea();

    44 

    45 public:

    46 

    47     /**

    48      * Set the sroll area pos to the start

    49      */

    50     void setPosToStart();

    51 

    52     /**

    53      * Handler for UpGesture

    54      */

    55     void upGesture(int value);

    56 

    57     /**

    58      * Handler for DownGesture

    59      */

    60     void downGesture(int value);

    61 

    62 public slots:

    63     /**

    64      * Handle scrolling started signal

    65      */

    66     void handleScrollingStarted();

    67 

    68     /**

    69      * Handle scrolling started signal

    70      */

    71     void handleScrollingEnded();

    72 

    73     /**

    74      * Set total slides present in the contents widget

    75      * @param  totalSlides

    76      */

    77     void setTotalSlides(int totalSlides);

    78 

    79     /**

    80      * Resets the current slide to zero

    81      */

    82     void resetCurrentSlide();

    83 

    84     signals:

    85 

    86     /**

    87      * Sinal emitted when next slide is to be loaded

    88      */

    89     void scrolledToNextSlide();

    90 

    91     /**

    92      * Sinal emitted when previous slide is to be loaded

    93      */

    94     void scrolledToPreviousSlide();

    95 

    96 private:

    97 

    98     /**

    99      * current slide number

   100      */

   101     int mCurrentSlide;

   102 

   103     /**

   104      * Total slide count

   105      */

   106     int mTotalSlides;

   107 

   108     /**

   109      * Scrolling start pos

   110      */

   111     QPointF mScrollStartPoint;

   112 

   113     /**

   114      * Scrolling end pos

   115      */

   116     QPointF mScrollEndPoint;

   117 };

   118 

   119 #endif //UNISCROLL_AREA_H

   120 // EOF