homescreenapp/hsutils/src/hsimagegridwidget.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 27 May 2010 12:46:08 +0300
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Revision: 201019 Kit: 2010121
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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:
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*
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*/
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#include <QStandardItemModel>
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#include <QGraphicsLinearLayout>
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#include <HbGridView>
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#include <HbAction>
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#include <HbInstance>
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#include "hsimagegridwidget.h"
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#ifdef COVERAGE_MEASUREMENT
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#pragma CTC SKIP
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#endif //COVERAGE_MEASUREMENT
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namespace
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{
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    const int FILENAMEROLE = Qt::UserRole + 1;
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}
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/*!
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    \class HsImageGridWidget
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    \ingroup group_hsutils
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    \brief Widget which shows images in a grid. 
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 */
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/*!
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    Constructor.
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    \a imageFiles List of absolut paths to image files.
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    \a parent Parent item.
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*/
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HsImageGridWidget::HsImageGridWidget(const QStringList &imageFiles,
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                                     QGraphicsItem *parent)
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    : HbView(parent),
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      mGridModel(new QStandardItemModel(this))
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{
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    mGridView = new HbGridView();
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    mGridView->setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAutoHide);
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    mGridView->setSelectionMode(HbAbstractItemView::NoSelection);
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    mGridView->setModel(mGridModel);
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    connect(mGridView,
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            SIGNAL(activated(QModelIndex)),
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            SLOT(gridItemActivated(QModelIndex)));
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    QGraphicsLinearLayout *layout = new QGraphicsLinearLayout;
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    layout->addItem(mGridView);
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    setLayout(layout);
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    setContent(imageFiles);
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}
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/*!
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    Destructor
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*/
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HsImageGridWidget::~HsImageGridWidget()
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{
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}
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/*!
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    Sets content image files to widget.
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    \a images List of absolut paths to image files.
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*/
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void HsImageGridWidget::setContent(const QStringList &images)
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{
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    mGridModel->clear();
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    QSize targetSize(150, 150);
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    QList<QStandardItem *> items;
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    QStandardItem *standardItem = 0;
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    for (int i = 0; i < images.count(); ++i) {
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        QPixmap original(images[i]);
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        QIcon scaledIcon(original.scaled(targetSize, Qt::KeepAspectRatio));
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        standardItem = new QStandardItem();
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        standardItem->setData(HbIcon(scaledIcon), Qt::DecorationRole);
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        standardItem->setData(images[i], FILENAMEROLE);
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        items << standardItem;
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    }
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    mGridModel->appendColumn(items);
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}
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/*!
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    \fn void HsImageGridWidget::imageSelected(const QString& aSelectedImage)
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    Emitted when image is selected from a grid
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    \a aImageFiles List of absolut paths to image files.
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*/
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/*!
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    Finds item from model and emits imageSelected
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    \a index is the index of selected image
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*/
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void HsImageGridWidget::gridItemActivated(const QModelIndex &index)
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{
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    QVariant data = mGridModel->data(index, FILENAMEROLE);
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    emit imageSelected( data.toString() );
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}
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#ifdef COVERAGE_MEASUREMENT
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#pragma CTC ENDSKIP
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#endif //COVERAGE_MEASUREMENT