messagingapp/msgui/unifiedviewer/src/univiewerpixmapwidget.cpp
author hgs
Fri, 09 Jul 2010 14:46:10 +0530
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child 51 3507212d340e
permissions -rw-r--r--
201027_02
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/*
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 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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 * All rights reserved.
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 * This component and the accompanying materials are made available
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 * under the terms of "Eclipse Public License v1.0"
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 * which accompanies this distribution, and is available
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 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
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 *
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 * Initial Contributors:
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 * Nokia Corporation - initial contribution.
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 *
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 * Contributors:
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 *
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 * Description: This widget displays the pixmap content in viewer.
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 *
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 */
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#include "univiewerpixmapwidget.h"
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// SYSTEM INCLUDES
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#include <HbTapGesture>
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#include <HbWidget>
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#include <HbInstantFeedback>
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#include <HbMenu>
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#include <QPixmap>
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#include <QTimer>
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#include <thumbnailmanager_qt.h>
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// USER INCLUDES
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#include "univiewerutils.h"
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#include "unidatamodelplugininterface.h"
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// LOCAL CONSTANTS
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#define LOC_OPEN    hbTrId("txt_common_menu_open")
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#define LOC_SAVE    hbTrId("txt_common_menu_save")
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const QString PIXMAP_ICON("qtg_small_image");
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const QString CORRUPTED_PIXMAP_ICON("qtg_large_corrupted");
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const QString VIDEO_MIMETYPE("video");
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const QString MSG_VIDEO_ICON("qtg_small_video");
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const QString VIDEO_OVERLAY_ICON("qtg_large_video_player");
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const int WIDTH_RATIO = 4;
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const int HEIGHT_RATIO = 3;
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::UniViewerPixmapWidget
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// @see header file
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//---------------------------------------------------------------
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UniViewerPixmapWidget::UniViewerPixmapWidget(QGraphicsItem *parent) :
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    HbIconItem(parent), mViewerUtils(0), mThumbnailManager(0)
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{
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    this->grabGesture(Qt::TapGesture);
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    init();
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::~UniViewerPixmapWidget
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// @see header file
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//---------------------------------------------------------------
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UniViewerPixmapWidget::~UniViewerPixmapWidget()
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{
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::setPixmap
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::populate(UniMessageInfo *info)
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{
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    mMimeType = info->mimetype();
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    mPixmapPath = info->path();
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    if (mMimeType.contains(VIDEO_MIMETYPE)) {
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        this->setIcon(MSG_VIDEO_ICON);
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        mThumbnailManager->getThumbnail(mPixmapPath);
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        this->ungrabGesture(Qt::TapGesture);
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    }
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    else if (info->isProtected()) {
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        this->setIconName(PIXMAP_ICON);
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    }
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    else if (info->isCorrupted()) {
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        this->setIconName(CORRUPTED_PIXMAP_ICON);
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    }
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    else {
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        QPixmap pixmap(mPixmapPath);
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        this->setIcon(HbIcon(pixmap));
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    }
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::gestureEvent
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::gestureEvent(QGestureEvent *event)
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{
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    HbTapGesture *tapGesture = qobject_cast<HbTapGesture*> (event->gesture(Qt::TapGesture));
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    if (tapGesture) {
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        switch (tapGesture->state()) {
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        case Qt::GestureStarted:
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        {
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            // Trigger haptic feedback.
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            HbInstantFeedback::play(HbFeedback::Basic);
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            break;
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        }
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        case Qt::GestureUpdated:
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        {
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            if (HbTapGesture::TapAndHold == tapGesture->tapStyleHint()) {
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                // Handle longtap.
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                handleLongTap(tapGesture->scenePosition());
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            }
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            break;
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        }
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        case Qt::GestureFinished:
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        {
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            HbInstantFeedback::play(HbFeedback::Basic);
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            if (HbTapGesture::Tap == tapGesture->tapStyleHint()) {
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                // Handle short tap
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                handleShortTap();
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            }
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            break;
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        }
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        case Qt::GestureCanceled:
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        {
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            HbInstantFeedback::play(HbFeedback::Basic);
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            break;
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        }
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        }
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    }
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    else {
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        HbIconItem::gestureEvent(event);
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    }
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::handleOpen
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::handleOpen()
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{
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    this->ungrabGesture(Qt::TapGesture);
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    if (!mViewerUtils) {
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        mViewerUtils = new UniViewerUtils(this);
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    }
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    mViewerUtils->launchContentViewer(mMimeType, mPixmapPath);
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    //fire timer to regrab gesture after some delay.
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    QTimer::singleShot(300,this,SLOT(regrabGesture()));
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::handleSave
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::handleSave()
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{
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::regrabGesture
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::regrabGesture()
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{
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    this->grabGesture(Qt::TapGesture);
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::thumbnailReady
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// @see header
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::thumbnailReady(const QPixmap& pixmap, void *data, int id, int error)
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{
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    Q_UNUSED(data)
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    Q_UNUSED(id)
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    this->grabGesture(Qt::TapGesture);
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    if (!error) {
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        this->setIcon(HbIcon(pixmap));
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        this->hide();
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        emit setOverlayIcon(VIDEO_OVERLAY_ICON);
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    }
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::init
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::init()
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{
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    mThumbnailManager = new ThumbnailManager(this);
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    mThumbnailManager->setMode(ThumbnailManager::CropToAspectRatio);
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    mThumbnailManager->setQualityPreference(ThumbnailManager::OptimizeForQuality);
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    mThumbnailManager->setThumbnailSize(getThumbnailSize());
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    connect(mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void*, int, int)), this,
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        SLOT(thumbnailReady(QPixmap, void*, int, int)));
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}
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//----------------------------------------------------------------------------
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// UniViewerPixmapWidget::handleShortTap
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// @see header file
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//----------------------------------------------------------------------------
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void UniViewerPixmapWidget::handleShortTap()
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{
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    emit shortTap(mPixmapPath);
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    // Open the media.
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    handleOpen();
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::handleLongTap
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// @see header file
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//---------------------------------------------------------------
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void UniViewerPixmapWidget::handleLongTap(const QPointF &position)
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{
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    emit longTap(position);
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    HbMenu* menu = new HbMenu;
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    menu->setAttribute(Qt::WA_DeleteOnClose);
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    menu->addAction(LOC_OPEN, this, SLOT(handleOpen()));
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    menu->addAction(LOC_SAVE, this, SLOT(handleSave()));
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    menu->setPreferredPos(position);
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    menu->show();
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}
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//---------------------------------------------------------------
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// UniViewerPixmapWidget::getThumbnailSize
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// @see header file
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//---------------------------------------------------------------
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QSize UniViewerPixmapWidget::getThumbnailSize()
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{
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    QSize thumbnailSize(1, 1);
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    HbWidget *parent = qobject_cast<HbWidget *>(this->parentWidget());
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    if (parent) {
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        qreal thumbnailWidth = 0.0;
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        qreal thumbnailHeight = 0.0;
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        parent->style()->parameter("hb-param-screen-short-edge", thumbnailWidth);
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        thumbnailHeight = (thumbnailWidth * HEIGHT_RATIO) / WIDTH_RATIO;
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        thumbnailSize.setHeight(qRound(thumbnailHeight));
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        thumbnailSize.setWidth(qRound(thumbnailWidth));
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    }
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    return thumbnailSize;
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}
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// EOF