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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/
#include <MApplicationPage>
#include <MLocale>
#include <MWidgetFactory>
#include <MImage>
#include <MGrid>
#include "trackergridpage.h"
// Implementation for custom grid widget factory plugin
MWidget *GridWidgetFactoryPlugin::onBuild(QMap<QString, QVariant>* data)
{
qDebug() << "GridWidgetFactoryPlugin::onBuild()";
// Check that Mime type is image
if (data->value("?GridItem_Mime").toString().contains("image/")) {
// Make full path to image file
QString fullpath = data->value("?GridItem_Path").toString() +
QString("/") +
data->value("?GridItem_Name").toString();
// nfo::Image ontology presents paths like this: "file:///home/user"
// so strip the prefix
if (fullpath.startsWith(QString("file:/")))
fullpath = fullpath.right(fullpath.length() - 6);
// Construct MImage with the full path to image
qDebug() << "...creating MImage from " << fullpath;
MImage *widget = new MImage(fullpath);
// Set widget size
QSize size(128, 128);
widget->setMinimumSize(size);
widget->setMaximumSize(size);
widget->setPreferredSize(size);
return (MWidget *)widget;
}
return 0;
}
QStringList GridWidgetFactoryPlugin::dataFields()
{
qDebug() << "GridWidgetFactoryPlugin::dataFields()";
static QStringList list;
if (list.empty()) {
list << "?GridItem_Name";
list << "?GridItem_Path";
list << "?GridItem_Mime";
}
return list;
}
// Implementation for tracker grid page
TrackerGridPage::TrackerGridPage()
{
qDebug() << "TrackerGridPage::TrackerGridPage()";
//% "TrackerGridPage"
setTitle(qtTrId("xx_tracker_grid_page_title"));
setObjectName("trackergridpage");
}
TrackerGridPage::~TrackerGridPage()
{
}
void TrackerGridPage::createContent()
{
qDebug() << "TrackerGridPage::createContent()";
MApplicationPage::createContent();
// Grid for presenting tracker items
grid = new MGrid();
grid->resize(800, 450);
grid->setSpacing(10);
grid->setLayoutMode(MGridModel::SinglePass);
grid->setBatchSize(100);
setCentralWidget(grid);
// Attach a custom grid plugin to widget factory:
// default plugins cannot handle tracker data format
MWidgetFactory *pFactory = MWidgetFactory::instance();
pFactory->attachPlugin(new GridWidgetFactoryPlugin());
// Query 20 images from tracker
SopranoLive::RDFSelect query;
makeQueryForImages(query, 20);
imageNodes = tracker()->modelQuery(query);
// Connect signals to get live data updates
connectUpdateSignals(imageNodes);
// Pass the abstract item model to grid
grid->setItemModel(imageNodes.model());
}
// SELECT ?__GridItem_MimeObjOfnie_mimeType ?__GridItem_PathObjOfnfo_belongsToContainer ?__GridItem_NameObjOfnfo_fileName
// WHERE {
// {
// ?__1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Image> .
// ?__1 <http://www.semanticdesktop.org/ontologies/2007/01/19/nie#mimeType> ?__GridItem_MimeObjOfnie_mimeType .
// ?__1 <http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#belongsToContainer> ?__GridItem_PathObjOfnfo_belongsToContainer .
// ?__1 <http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#fileName> ?__GridItem_NameObjOfnfo_fileName .
// }
// }
// LIMIT 20
void TrackerGridPage::makeQueryForImages(SopranoLive::RDFSelect &query, int limit)
{
qDebug() << "TrackerGridPage::makeQueryForImages()";
SopranoLive::RDFVariable image = SopranoLive::RDFVariable::fromType<SopranoLive::nfo::Image>();
query.limit(limit);
query.addColumn("GridItem_Mime", image.property<SopranoLive::nie::mimeType>());
query.addColumn("GridItem_Path", image.property<SopranoLive::nfo::belongsToContainer>());
query.addColumn("GridItem_Name", image.property<SopranoLive::nfo::fileName>());
qDebug() << query.getQuery();
}
void TrackerGridPage::connectUpdateSignals(const SopranoLive::LiveNodes &nodes)
{
qDebug() << "TrackerGridPage::connectUpdateSignals()";
QObject::connect(nodes.model(), SIGNAL(rowsInserted(QModelIndex, int, int))
, this, SLOT(updateGrid()));
QObject::connect(nodes.model(), SIGNAL(rowsRemoved(QModelIndex, int, int))
, this, SLOT(updateGrid()));
QObject::connect(nodes.model(), SIGNAL(dataChanged(QModelIndex, QModelIndex))
, this, SLOT(updateGrid()));
}
void TrackerGridPage::updateGrid()
{
qDebug() << "TrackerGridPage::updateGrid()";
}
// End of file
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