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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used 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. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgeotiledmappingmanagerengine.h"
#include "qgeotiledmappingmanagerengine_p.h"
QTM_BEGIN_NAMESPACE
/*!
\class QGeoTiledMappingManagerEngine
\brief The QGeoTiledMappingManagerEngine class is provided to make writing
Qt Maps and Navigation API plugins for tiled based mapping services easier.
\inmodule QtLocation
\ingroup maps-impl-tiled
Subclasses of QGeoTiledMappingManagerEngine need to provide an implementation
of getTileImage().
It is important that the function setTileSize() is called before
getTileImage() to ensure that the tile is dealt with correctly after it is
fetched. If setTileSize() is not calle dfirst the behaviour is undefined.
A subclass of QGeoTiledMappingManagerEngine will often make use of a subclass
fo QGeoTiledMapReply internally, in order to add any engine-specific
data (such as a QNetworkReply object for network-based services) to the
QGeoTiledMapReply instances used by the engine.
QGeoTiledMappingManagerEngine will report that custom map objects are supported
by default.
*/
/*!
Constructs a new tiled mapping manager using the parameters \a parameters
and the parent \a parent.
*/
QGeoTiledMappingManagerEngine::QGeoTiledMappingManagerEngine(const QMap<QString, QVariant> ¶meters, QObject *parent)
: QGeoMappingManagerEngine(new QGeoTiledMappingManagerEnginePrivate(), parent)
{
Q_UNUSED(parameters)
setSupportsCustomMapObjects(true);
}
/*!
Destroys this tiled mapping manager.
*/
QGeoTiledMappingManagerEngine::~QGeoTiledMappingManagerEngine()
{
// deleted in superclass destructor
}
/*
Requests the map tiled specified by \a request.
A QGeoTiledMapReply object will be returned, which can be used to manage the
fetching of the tile and to return the tile data.
This manager and the returned QGeoTiledMapReply object will emit signals
indicating if the operation completes or if errors occur.
Once the operation has completed, QGeoTiledMapReply::mapImageData() and
QGeoTiledMapReply::mapImageFormat() can be used to generate the tile image.
The user is responsible for deleting the returned reply object, although
this can be done in the slot connected to QGeoTiledMappingManagerEngine::finished(),
QGeoTiledMappingManagerEngine::error(), QGeoTiledMapReply::finished() or
QGeoTiledMapReply::error() with deleteLater().
*/
/*!
\fn virtual QGeoTiledMapReply* QGeoTiledMappingManagerEngine::getTileImage(const QGeoTiledMapRequest &request)
Requests the map tiled specified by \a request.
A QGeoTiledMapReply object will be returned, which can be used to manage the
fetching of the tile and to return the tile data.
The returned QGeoTiledMapReply object will emit signals
indicating if the operation completes or if errors occur.
Once the operation has completed, QGeoTiledMapReply::mapImageData() and
QGeoTiledMapReply::mapImageFormat() can be used to generate the tile image.
The user is responsible for deleting the returned reply object, although
this can be done in the slot connected to QGeoTiledMapReply::finished() or
QGeoTiledMapReply::error() with deleteLater().
*/
/*!
Returns a new QGeoMapData instance which will be managed by
this manager.
A QGeoMapData instance contains and manages the information about
what a map widget is looking at. A single manager can be used by several
QGraphcisGeoMap instances since each instance has an associated QGeoMapData instance.
The QGeoMapData instance can be treated as a kind of session object, or
as a model in a model-view-controller architecture, with QGraphicsGeoMap
as the view and QGeoMappingManagerEngine as the controller.
The instance returned by the default implementation will be a
QGeoTiledMapData instance. Subclasses of QGeoTiledMappingManagerEngine are
free to override this function to return subclasses of QGeoTiledMapData in
order to customize the map.
*/
QGeoMapData* QGeoTiledMappingManagerEngine::createMapData()
{
return new QGeoTiledMapData(this);
}
/*!
Returns the size of the tiles returned by this tiled mapping manager.
*/
QSize QGeoTiledMappingManagerEngine::tileSize() const
{
Q_D(const QGeoTiledMappingManagerEngine);
return d->tileSize;
}
/*!
Sets the size of the tiles returned by this tiled mapping manager to \a
tileSize.
Subclasses of QGeoTiledMappingManagerEngine should use this function to
ensure tileSize() provides accurate information.
*/
void QGeoTiledMappingManagerEngine::setTileSize(const QSize &tileSize)
{
Q_D(QGeoTiledMappingManagerEngine);
d->tileSize = tileSize;
}
/*******************************************************************************
*******************************************************************************/
QGeoTiledMappingManagerEnginePrivate::QGeoTiledMappingManagerEnginePrivate()
: QGeoMappingManagerEnginePrivate() {}
QGeoTiledMappingManagerEnginePrivate::~QGeoTiledMappingManagerEnginePrivate() {}
/*******************************************************************************
*******************************************************************************/
#include "moc_qgeotiledmappingmanagerengine.cpp"
QTM_END_NAMESPACE
|
