/*

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

 * All rights reserved.

 * This component and the accompanying materials are made available

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

 * which accompanies this distribution, and is available

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

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: This widget displays the pixmap content in viewer.

 *

 */

#ifndef UNI_VIEWER_PIXMAP_WIDGET_H

#define UNI_VIEWER_PIXMAP_WIDGET_H

#include <HbIconItem>

// FORWARD DECLARATIONS

class UniViewerUtils;

class UniMessageInfo;

class ThumbnailManager;

/**

 * This widget displays the pixmap content in viewer.

 */

class UniViewerPixmapWidget: public HbIconItem

{

Q_OBJECT

public:

    /**

     * Constructor

     */

    UniViewerPixmapWidget(QGraphicsItem *parent = 0);

    /**

     * Destructor

     */

    ~UniViewerPixmapWidget();

    /**

     * Sets the pixmap content to be displayed.

     * @param info Object information.

     */

    void populate(UniMessageInfo *info);

signals:

    /**

     * Signal emitted when widget is clicked.

     * @param mediaPath File path of the media.

     */

    void shortTap(const QString &mediaPath);

    /**

     * Signal emitted when widget is long tapped.

     * @param position Scene coordinates of tap.

     */

    void longTap(const QPointF &position);

    /**

     * Signal emitted indicating if thumbnail was found or not

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

     * @param info UniMessageInfo of the media object.

     */

    void thumbnailFound(bool result, UniMessageInfo *info);

protected:

    /**

     * Event handler for gesture events.

     * Reimplemented from HbWidgetBase.

     * @see HbWidgetBase

     */

    virtual void gestureEvent(QGestureEvent *event);

private slots:

    /**

     * Handles opening of media.

     */

    void handleOpen();

    /**

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

     * events back to back.  

     */

    void regrabGesture();

    /**

     * Slot hit when the thumbnail is ready.

     */

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

private:

    /**

     * Initialization function.

     */

    void init();

    /**

     * Handles short tap event.

     */

    void handleShortTap();

    /**

     * Handles long tap event.

     * @param position Scene coordinates of tap.

     */

    void handleLongTap(const QPointF &position);

    /**

     * Calculates the thumbnail size.

     * @return Thumbnail size

     */

    QSize getThumbnailSize();

private:

    /**

     * UniMessageInfo object.

     * Own.

     */

    UniMessageInfo *mInfo;

    /**

     * UniViewerUtils object.

     * Own

     */

    UniViewerUtils *mViewerUtils;

    /**

     * ThumbnailManager

     * Own.

     */

    ThumbnailManager *mThumbnailManager;

    /**

     * Mime Type of pixmap.

     */

    QString mMimeType;

    /**

     * Pixmap file path being set.

     */

    QString mPixmapPath;

};

#endif /* UNI_VIEWER_PIXMAP_WIDGET_H */

// EOF