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: This widget displays the pixmap content in viewer.

    15  *

    16  */

    17 

    18 #ifndef UNI_VIEWER_PIXMAP_WIDGET_H

    19 #define UNI_VIEWER_PIXMAP_WIDGET_H

    20 

    21 #include <HbIconItem>

    22 

    23 // FORWARD DECLARATIONS

    24 class UniViewerUtils;

    25 class UniMessageInfo;

    26 class ThumbnailManager;

    27 

    28 /**

    29  * This widget displays the pixmap content in viewer.

    30  */

    31 class UniViewerPixmapWidget: public HbIconItem

    32 {

    33 Q_OBJECT

    34 

    35 public:

    36 

    37     /**

    38      * Constructor

    39      */

    40     UniViewerPixmapWidget(QGraphicsItem *parent = 0);

    41 

    42     /**

    43      * Destructor

    44      */

    45     ~UniViewerPixmapWidget();

    46 

    47     /**

    48      * Sets the pixmap content to be displayed.

    49      * @param info Object information.

    50      */

    51     void populate(UniMessageInfo *info);

    52 

    53 signals:

    54 

    55     /**

    56      * Signal emitted when widget is clicked.

    57      * @param mediaPath File path of the media.

    58      */

    59     void shortTap(const QString &mediaPath);

    60 

    61     /**

    62      * Signal emitted when widget is long tapped.

    63      * @param position Scene coordinates of tap.

    64      */

    65     void longTap(const QPointF &position);

    66 

    67     /**

    68      * Signal emitted indicating if thumbnail was found or not

    69      * @param result true if thumbnail was found else false.

    70      * @param info UniMessageInfo of the media object.

    71      */

    72     void thumbnailFound(bool result, UniMessageInfo *info);

    73 

    74 protected:

    75 

    76     /**

    77      * Event handler for gesture events.

    78      * Reimplemented from HbWidgetBase.

    79      * @see HbWidgetBase

    80      */

    81     virtual void gestureEvent(QGestureEvent *event);

    82 

    83 private slots:

    84 

    85     /**

    86      * Handles opening of media.

    87      */

    88     void handleOpen();

    89 

    90     /**

    91      * Handles saving of media.

    92      */

    93     void handleSave();

    94 

    95     /**

    96      * Slot to regrab gesture after some delay (300 ms) to avoid multiple gesture

    97      * events back to back.  

    98      */

    99     void regrabGesture();

   100 

   101     /**

   102      * Slot hit when the thumbnail is ready.

   103      */

   104     void thumbnailReady(const QPixmap& pixmap, void *data, int id, int error);

   105 

   106 private:

   107 

   108     /**

   109      * Initialization function.

   110      */

   111     void init();

   112 

   113     /**

   114      * Handles short tap event.

   115      */

   116     void handleShortTap();

   117 

   118     /**

   119      * Handles long tap event.

   120      * @param position Scene coordinates of tap.

   121      */

   122     void handleLongTap(const QPointF &position);

   123 

   124     /**

   125      * Calculates the thumbnail size.

   126      * @return Thumbnail size

   127      */

   128     QSize getThumbnailSize();

   129 

   130 private:

   131 

   132     /**

   133      * UniMessageInfo object.

   134      * Own.

   135      */

   136     UniMessageInfo *mInfo;

   137 

   138     /**

   139      * UniViewerUtils object.

   140      * Own

   141      */

   142     UniViewerUtils *mViewerUtils;

   143 

   144     /**

   145      * ThumbnailManager

   146      * Own.

   147      */

   148     ThumbnailManager *mThumbnailManager;

   149 

   150     /**

   151      * Mime Type of pixmap.

   152      */

   153     QString mMimeType;

   154 

   155     /**

   156      * Pixmap file path being set.

   157      */

   158     QString mPixmapPath;

   159 };

   160 

   161 #endif /* UNI_VIEWER_PIXMAP_WIDGET_H */

   162 

   163 // EOF