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Diffstat (limited to 'src/location/maps/tiled/qgeotiledmapdata.cpp')
| -rw-r--r-- | src/location/maps/tiled/qgeotiledmapdata.cpp | 1431 |
1 files changed, 0 insertions, 1431 deletions
diff --git a/src/location/maps/tiled/qgeotiledmapdata.cpp b/src/location/maps/tiled/qgeotiledmapdata.cpp deleted file mode 100644 index 207242f1..00000000 --- a/src/location/maps/tiled/qgeotiledmapdata.cpp +++ /dev/null @@ -1,1431 +0,0 @@ -/**************************************************************************** -** -** 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. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qgeotiledmapdata.h" -#include "qgeotiledmapdata_p.h" - -#include "qgeotiledmappingmanagerengine.h" -#include "qgeotiledmappingmanagerengine_p.h" -#include "qgeotiledmaprequest.h" -#include "qgeocoordinate.h" -#include "qgeoboundingbox.h" -#include "qgeomapoverlay.h" -#include <private/projwrapper_p.h> -#include "qgeomapobjectengine_p.h" - -#include "qgeotiledmapobjectinfo_p.h" -#include "qgeotiledmapcircleobjectinfo_p.h" -#include "qgeotiledmapgroupobjectinfo_p.h" -#include "qgeotiledmappixmapobjectinfo_p.h" -#include "qgeotiledmappolygonobjectinfo_p.h" -#include "qgeotiledmappolylineobjectinfo_p.h" -#include "qgeotiledmaprectangleobjectinfo_p.h" -#include "qgeotiledmaprouteobjectinfo_p.h" -#include "qgeotiledmaptextobjectinfo_p.h" -#include "qgeotiledmapcustomobjectinfo_p.h" - -#include "qgeomaptextobject.h" - -#include <QTimer> -#include <QImage> -#include <QGraphicsScene> - -#include <QDebug> - -//#define DEFAULT_ZOOMLEVEL 8 -#define PI 3.14159265 -//#define HIT_DETECTION_COLOR qRgba(0, 0, 255, 127) //semi-transparent blue - -#ifndef M_PI -#define M_PI 3.14159265358979323846 -#endif - -#include <math.h> - -QT_BEGIN_NAMESPACE - -uint qHash(const QRectF& key) -{ - uint result = qHash(qRound(key.x())); - result += qHash(qRound(key.y())); - result += qHash(qRound(key.width())); - result += qHash(qRound(key.height())); - return result; -} - - -/*! - \class QGeoTiledMapData - \brief The QGeoTiledMapData class is a subclass of QGeoMapData provided - to make working with tile based mapping services more convenient. - - \inmodule QtLocation - - \ingroup maps-impl-tiled - - \since 1.2 - - This class assumes that at a zoom level of z the world is represented as a - 2^z by 2^z grid of tiles, and that the Mercator projection is used to map - back and forth between coordinate and positions on the map. - - Different projections can be provided by reimplementing - coordinateToWorldReferencePosition() and worldReferencePositionToCoordinate(). - - Many of the internal calculations deal with positions as though they are - pixel positions on the map at the maximum zoom level. Several functions are - provided which expose information about the map and the viewport onto the - map in these terms for use with custom QGeoMapObjectInfo subclasses. - - These functions include worldReferenceViewportCenter(), worldReferenceSize() and - worldReferenceViewportRect(). - - NOTE: QGeoTiledMapData blocks property change signals from QGeoMapData by calling - QGeoMapData::setBlockPropertyChangeSignals() with true. Changing this in - QGeoTiledMapData subclasses will cause the signals being emitted at wrong time. -*/ - -/*! - Constructs a new tiled map data object, which makes use of the functionality provided by \a engine. -*/ -QGeoTiledMapData::QGeoTiledMapData(QGeoMappingManagerEngine *engine) - : QGeoMapData(new QGeoTiledMapDataPrivate(this, engine)) -{ - Q_D(QGeoTiledMapData); - - QGeoTiledMappingManagerEngine *tileEngine = static_cast<QGeoTiledMappingManagerEngine *>(d->engine); - - setBlockPropertyChangeSignals(true); - - setZoomLevel(8.0); - - d->worldReferenceSize = (1 << qRound(tileEngine->maximumZoomLevel())) * tileEngine->tileSize(); - - // TODO get this from the engine, which should give different values depending on if this is running on a device or not -#if defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) || defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6) - d->cache.setMaxCost(5 * 1024 * 1024); - d->zoomCache.setMaxCost(5 * 1024 * 1024); -#else - d->cache.setMaxCost(10 * 1024 * 1024); - d->zoomCache.setMaxCost(10 * 1024 * 1024); -#endif -} - -/*! - Destroys this tiled map data object. -*/ -QGeoTiledMapData::~QGeoTiledMapData() -{ -} - - -QPointF QGeoTiledMapDataPrivate::coordinateToScreenPosition(double lon, double lat) const -{ - QPointF offset = windowOffset(); - - QPoint pos(coordinateToWorldReferencePosition(lon, lat)); - - const int x = pos.x() - worldReferenceViewportRect.left(); -// if (x < 0) -// x += worldReferenceSize.width(); - - const int y = pos.y() - worldReferenceViewportRect.top(); - - QPointF posF(offset.x() + qreal(x) / zoomFactor, offset.y() + qreal(y) / zoomFactor); - - return posF; -} - -/*! - \reimp -*/ -QPointF QGeoTiledMapData::coordinateToScreenPosition(const QGeoCoordinate &coordwgs) const -{ - Q_D(const QGeoTiledMapData); - return d->coordinateToScreenPosition(coordwgs.longitude(), coordwgs.latitude()); -} - -/*! - \reimp -*/ -QGeoCoordinate QGeoTiledMapData::screenPositionToCoordinate(const QPointF &screenPosition) const -{ - Q_D(const QGeoTiledMapData); - - QPoint worldRef = d->screenPositionToWorldReferencePosition(screenPosition); - - if (worldRef.isNull()) - return QGeoCoordinate(); - - const QGeoCoordinate insph = worldReferencePositionToCoordinate(worldRef); - - //ProjCoordinate c(insph.longitude(), insph.latitude(), 0.0, d->spherical); - //c.convert(d->wgs84); - return insph; -} - -// this belongs to QGeoTiledMapDataPrivate in order to avoid -// breaking B.C. -QPoint QGeoTiledMapDataPrivate::screenPositionToWorldReferencePosition(const QPointF &screenPosition) const -{ - QPointF offset = windowOffset(); - - QPointF pos(screenPosition.x() - offset.x(), screenPosition.y() - offset.y()); - - const int worldX = int(worldReferenceViewportRect.left() + pos.x() * zoomFactor + 0.5) % worldReferenceSize.width(); - const int worldY = int(worldReferenceViewportRect.top() + pos.y() * zoomFactor + 0.5) % worldReferenceSize.height(); - - return QPoint(worldX, worldY); -} - -QPoint QGeoTiledMapDataPrivate::coordinateToWorldReferencePosition(double lng, double lat) const -{ - lng = lng / 360.0 + 0.5; - - lat = 0.5 - (log(tan((PI / 4.0) + (PI / 2.0) * lat / 180.0)) / PI) / 2.0; - lat = qMax(0.0, lat); - lat = qMin(1.0, lat); - - const double x = lng * worldReferenceSize.width(); - const double y = lat * worldReferenceSize.height(); - - const QPoint r(int(x > 0 ? x + 0.5 : x - 0.5), - int(y > 0 ? y + 0.5 : y - 0.5)); - return r; -} - -/*! - Converts the coordinate \a coordinate to a pixel position on the entire - map at the maximum zoom level. - - The default implementation is based on the Mercator projection. -*/ -QPoint QGeoTiledMapData::coordinateToWorldReferencePosition(const QGeoCoordinate &coordinate) const -{ - Q_D(const QGeoTiledMapData); - return d->coordinateToWorldReferencePosition(coordinate.longitude(), - coordinate.latitude()); -} - -qreal rmod(const qreal a, const qreal b) -{ - quint64 div = static_cast<quint64>(a / b); - return a - static_cast<qreal>(div) * b; -} - -/*! - Converts the pixel position \a pixel on the map to a coordinate. - - The pixel position is relative the entire map at the maximum zoom level. - - The default implementation is based on the Mercator projection. -*/ -QGeoCoordinate QGeoTiledMapData::worldReferencePositionToCoordinate(const QPoint &pixel) const -{ - Q_D(const QGeoTiledMapData); - - qreal fx = qreal(pixel.x()) / d->worldReferenceSize.width(); - qreal fy = qreal(pixel.y()) / d->worldReferenceSize.height(); - - if (fy < 0.0f) - fy = 0.0f; - else if (fy > 1.0f) - fy = 1.0f; - - qreal lat; - - if (fy == 0.0f) - lat = 90.0f; - else if (fy == 1.0f) - lat = -90.0f; - else - lat = (180.0f / PI) * (2.0f * atan(exp(PI * (1.0f - 2.0f * fy))) - (PI / 2.0f)); - - qreal lng; - if (fx >= 0) { - lng = rmod(fx, 1.0f); - } else { - lng = rmod(1.0f - rmod(-1.0f * fx, 1.0f), 1.0f); - } - - lng = lng * 360.0f - 180.0f; - - return QGeoCoordinate(lat, lng, 0.0); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::setCenter(const QGeoCoordinate ¢er) -{ - Q_D(QGeoTiledMapData); - - bool changed = (d->center != center); - - if (!changed) - return; - - d->worldReferenceViewportCenter = coordinateToWorldReferencePosition(center); - d->updateScreenRect(); - emit updateMapDisplay(); - - emit centerChanged(center); - - d->updateMapImage(); - - QGeoMapData::setCenter(center); - d->oe->invalidatePixelsForViewport(); - d->oe->trimPixelTransforms(); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::setMapType(QGraphicsGeoMap::MapType mapType) -{ - Q_D(QGeoTiledMapData); - - bool changed = (d->mapType != mapType); - - if (!changed) - return; - - QGeoMapData::setMapType(mapType); - - d->clearRequests(); - d->cache.clear(); - d->zoomCache.clear(); - emit updateMapDisplay(); - - emit mapTypeChanged(d->mapType); - - d->updateMapImage(); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::setConnectivityMode(QGraphicsGeoMap::ConnectivityMode connectivityMode) -{ - QGraphicsGeoMap::ConnectivityMode oldMode = QGeoMapData::connectivityMode(); - - if (oldMode == connectivityMode) - return; - - QGeoMapData::setConnectivityMode(connectivityMode); - - if (oldMode == QGeoMapData::connectivityMode()) - return; - - emit connectivityModeChanged(connectivityMode); -} - -/*! - \reimp -*/ -QGeoCoordinate QGeoTiledMapData::center() const -{ - Q_D(const QGeoTiledMapData); - return worldReferencePositionToCoordinate(d->worldReferenceViewportCenter); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::setZoomLevel(qreal zoomLevelf) -{ - Q_D(QGeoTiledMapData); - - QPixmap oldImage(windowSize().toSize()); - if (!oldImage.isNull()) { - // grab the old image - QPainter painter1(&oldImage); - d->paintMap(&painter1, 0); - painter1.end(); - } - - qreal oldZoomLevel = d->zoomLevel; - int zoomLevel = qRound(zoomLevelf); - - QGeoMapData::setZoomLevel(zoomLevel); - - d->oe->invalidateZoomDependents(); - d->oe->invalidatePixelsForViewport(); - d->oe->trimPixelTransforms(); - - // QGeoMapData::setZoomLevel clips the zoom level to be - // in between the minimum and maximum zoom levels - zoomLevel = QGeoMapData::zoomLevel(); - - int zoomDiff = qRound(zoomLevel - oldZoomLevel); - - if (zoomDiff == 0) - return; - - d->zoomFactor = 1 << qRound(d->engine->maximumZoomLevel() - d->zoomLevel); - - QGeoTiledMappingManagerEngine *tileEngine = static_cast<QGeoTiledMappingManagerEngine *>(d->engine); - QSize tileSize = tileEngine->tileSize(); - - d->updateScreenRect(); - - if (oldImage.isNull()) { - d->updateMapImage(); - emit zoomLevelChanged(d->zoomLevel); - return; - } - - //scale old image - QRectF target = oldImage.rect(); - qreal width = target.width() / (1 << qAbs(zoomDiff)); - qreal height = target.height() / (1 << qAbs(zoomDiff)); - qreal x = target.x() + ((target.width() - width) / 2.0); - qreal y = target.y() + ((target.height() - height) / 2.0); - QRectF source = QRectF(x, y, width, height); - - QPixmap newImage(oldImage.size()); - newImage.fill(Qt::lightGray); - QPainter painter2(&newImage); -#if !(defined(Q_OS_SYMBIAN) || defined(Q_OS_WINCE_WM) || defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)) - painter2.setRenderHint(QPainter::SmoothPixmapTransform, true); -#endif - if (zoomDiff < 0) { - painter2.drawPixmap(source, oldImage, target); - } else { - painter2.drawPixmap(target, oldImage, source); - } - painter2.end(); - - d->zoomCache.clear(); - - QGeoTileIterator it(d); - - QPointF offset = d->windowOffset(); - - while (it.hasNext()) { - QGeoTiledMapRequest req = it.next(); - QRect tileRect = req.tileRect(); - - if (d->cache.contains(req)) - continue; - - if (!d->intersectsScreen(tileRect)) - continue; - - QList<QPair<QRect, QRect> > overlaps = d->intersectedScreen(tileRect); - for (int i = 0; i < overlaps.size(); ++i) { - QRect s = overlaps.at(i).first; - QRect t = overlaps.at(i).second; - - QRectF source = QRectF(offset.x() + int(t.left()) / d->zoomFactor, - offset.y() + int(t.top()) / d->zoomFactor, - int(t.width()) / d->zoomFactor, - int(t.height()) / d->zoomFactor); - - QPixmap *tile = new QPixmap(tileSize); - tile->fill(Qt::lightGray); // TODO: this looks useless - - QRectF target = QRectF(int(s.left()) / d->zoomFactor, - int(s.top()) / d->zoomFactor, - int(s.width()) / d->zoomFactor, - int(s.height()) / d->zoomFactor); - - QPainter painter3(tile); - painter3.drawPixmap(target, newImage, source); - painter3.end(); - - d->zoomCache.insert(req, tile, (tile->depth() * tile->width() * tile->height()) / 8); - } - } - - emit updateMapDisplay(); - - d->clearRequests(); - d->updateMapImage(); - - emit zoomLevelChanged(d->zoomLevel); - - // call again - QGeoMapData::setZoomLevel(zoomLevel); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::setWindowSize(const QSizeF &size) -{ - Q_D(QGeoTiledMapData); - - bool changed = (d->windowSize != size); - - if (!changed) - return; - - QGeoMapData::setWindowSize(size); - - d->oe->invalidatePixelsForViewport(); - d->oe->trimPixelTransforms(); - - d->updateScreenRect(); - - emit windowSizeChanged(d->windowSize); - - d->updateMapImage(); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::pan(int dx, int dy) -{ - Q_D(QGeoTiledMapData); - - int x = d->worldReferenceViewportCenter.x(); - int y = d->worldReferenceViewportCenter.y(); - - x = (x + dx * d->zoomFactor) % d->worldReferenceSize.width(); - if (x < 0) - x += d->worldReferenceSize.width(); - - y = (y + dy * d->zoomFactor); - int height = int(d->worldReferenceViewportRect.height() / 2.0); - if (y < height) - y = height; - if (y > d->worldReferenceSize.height() - height) - y = d->worldReferenceSize.height() - height; - - d->worldReferenceViewportCenter.setX(x); - d->worldReferenceViewportCenter.setY(y); - - QGeoCoordinate centerCoord = center(); - - QGeoMapData::setCenter(centerCoord); - d->oe->invalidatePixelsForViewport(); - d->oe->trimPixelTransforms(); - - d->updateScreenRect(); - - emit centerChanged(centerCoord); - - d->updateMapImage(); -} - -/*! - \reimp -*/ -QGeoBoundingBox QGeoTiledMapData::viewport() const -{ - Q_D(const QGeoTiledMapData); - if (d->worldReferenceViewportRectRight.isValid()) { - return QGeoBoundingBox(worldReferencePositionToCoordinate(d->worldReferenceViewportRectLeft.topLeft()), - worldReferencePositionToCoordinate(d->worldReferenceViewportRectRight.bottomRight())); - } else { - return QGeoBoundingBox(worldReferencePositionToCoordinate(d->worldReferenceViewportRect.topLeft()), - worldReferencePositionToCoordinate(d->worldReferenceViewportRect.bottomRight())); - } -} - -/*! - \reimp -*/ -void QGeoTiledMapData::fitInViewport(const QGeoBoundingBox &bounds, bool preserveViewportCenter) -{ - Q_D(QGeoTiledMapData); - - if (!preserveViewportCenter) - setCenter(bounds.center()); - - int minZoomLevel = engine()->minimumZoomLevel(); - int maxZoomLevel = engine()->maximumZoomLevel(); - - int zoomFactor = 1 << maxZoomLevel; - - for (int i = minZoomLevel; i <= maxZoomLevel; ++i) { - QRect rect = d->screenRectForZoomFactor(zoomFactor); - QGeoBoundingBox viewport = QGeoBoundingBox(worldReferencePositionToCoordinate(rect.topLeft()), - worldReferencePositionToCoordinate(rect.bottomRight())); - -// qWarning() << i << zoomFactor -// << viewport.topLeft() -// << viewport.bottomRight(); - - if (!viewport.contains(bounds)) { - setZoomLevel(qMax(minZoomLevel, i - 1)); - return; - } - - zoomFactor /= 2; - } - - setZoomLevel(maxZoomLevel); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::paintMap(QPainter *painter, const QStyleOptionGraphicsItem *option) -{ - Q_D(QGeoTiledMapData); - d->paintMap(painter, option); -} - -/*! - \reimp -*/ -void QGeoTiledMapData::paintObjects(QPainter *painter, const QStyleOptionGraphicsItem *option) -{ - Q_D(QGeoTiledMapData); - d->paintObjects(painter, option); -} - -/*! - \reimp -*/ -QGeoMapObjectInfo *QGeoTiledMapData::createMapObjectInfo(QGeoMapObject *mapObject) -{ - switch (mapObject->type()) { - case QGeoMapObject::GroupType: - return new QGeoTiledMapGroupObjectInfo(this, mapObject); - case QGeoMapObject::RectangleType: - return new QGeoTiledMapRectangleObjectInfo(this, mapObject); - case QGeoMapObject::CircleType: - return new QGeoTiledMapCircleObjectInfo(this, mapObject); - case QGeoMapObject::PolylineType: - return new QGeoTiledMapPolylineObjectInfo(this, mapObject); - case QGeoMapObject::PolygonType: - return new QGeoTiledMapPolygonObjectInfo(this, mapObject); - case QGeoMapObject::PixmapType: - return new QGeoTiledMapPixmapObjectInfo(this, mapObject); - case QGeoMapObject::TextType: - return new QGeoTiledMapTextObjectInfo(this, mapObject); - case QGeoMapObject::RouteType: - return new QGeoTiledMapRouteObjectInfo(this, mapObject); - case QGeoMapObject::CustomType: - return new QGeoTiledMapCustomObjectInfo(this, mapObject); - default: - return 0; - } -} - -void QGeoTiledMapData::processRequests() -{ - Q_D(QGeoTiledMapData); - - QMutableSetIterator<QGeoTiledMapReply*> replyIter(d->replies); - // Abort off-screen replies - while (replyIter.hasNext()) { - QGeoTiledMapReply *reply = replyIter.next(); - if (!d->intersectsScreen(reply->request().tileRect()) - || (zoomLevel() != reply->request().zoomLevel()) - || (mapType() != reply->request().mapType()) - || (connectivityMode() != reply->request().connectivityMode())) { - d->replyRects.remove(reply->request().tileRect()); - d->zoomCache.remove(reply->request()); - replyIter.remove(); - reply->abort(); - } - } - - QGeoTiledMappingManagerEngine *tiledEngine - = static_cast<QGeoTiledMappingManagerEngine*>(engine()); - - QMutableListIterator<QGeoTiledMapRequest> requestIter(d->requests); - while (requestIter.hasNext()) { - QGeoTiledMapRequest req = requestIter.next(); - - d->requestRects.remove(req.tileRect()); - requestIter.remove(); - - // Do not use the requests which have pending replies or are off screen - if (d->replyRects.contains(req.tileRect()) || !d->intersectsScreen(req.tileRect())) { - continue; - } - - QGeoTiledMapReply *reply = tiledEngine->getTileImage(req); - - if (!reply) { - continue; - } - - if (reply->error() != QGeoTiledMapReply::NoError) { - tileError(reply->error(), reply->errorString()); - reply->deleteLater(); - d->zoomCache.remove(reply->request()); - continue; - } - - connect(reply, - SIGNAL(finished()), - this, - SLOT(tileFinished())); - - connect(reply, - SIGNAL(error(QGeoTiledMapReply::Error, QString)), - this, - SLOT(tileError(QGeoTiledMapReply::Error, QString))); - - d->replies.insert(reply); - d->replyRects.insert(reply->request().tileRect()); - - if (reply->isFinished()) - replyFinished(reply); - } -} - -void QGeoTiledMapData::tileFinished() -{ - Q_D(QGeoTiledMapData); - - QGeoTiledMapReply *reply = qobject_cast<QGeoTiledMapReply*>(sender()); - - if (!reply) { - if (d->requests.size() > 0) - QTimer::singleShot(0, this, SLOT(processRequests())); - return; - } else { - replyFinished(reply); - } -} - -void QGeoTiledMapData::replyFinished(QGeoTiledMapReply *reply) -{ - Q_D(QGeoTiledMapData); - - d->replyRects.remove(reply->request().tileRect()); - d->replies.remove(reply); - d->zoomCache.remove(reply->request()); - - if (reply->error() != QGeoTiledMapReply::NoError) { - if (d->requests.size() > 0) - QTimer::singleShot(0, this, SLOT(processRequests())); - reply->deleteLater(); - return; - } - - if ((zoomLevel() != reply->request().zoomLevel()) - || (mapType() != reply->request().mapType()) - || (connectivityMode() != reply->request().connectivityMode())) { - if (d->requests.size() > 0) - QTimer::singleShot(0, this, SLOT(processRequests())); - reply->deleteLater(); - return; - } - - //QPixmap *tile = new QPixmap(); - QImage *tile = new QImage(); - - if (!tile->loadFromData(reply->mapImageData(), reply->mapImageFormat().toAscii())) { - delete tile; - if (d->requests.size() > 0) - QTimer::singleShot(0, this, SLOT(processRequests())); - reply->deleteLater(); - return; - //setError(QGeoTiledMapReply::ParseError, "The response from the service was not in a recognisable format."); - } - - if (tile->isNull() || tile->size().isEmpty()) { - delete tile; - if (d->requests.size() > 0) - QTimer::singleShot(0, this, SLOT(processRequests())); - reply->deleteLater(); - return; - //setError(QGeoTiledMapReply::ParseError, "The map image is empty."); - } - - d->cache.insert(reply->request(), tile, (tile->depth() * tile->width() * tile->height()) / 8); - - d->cleanupCaches(); - - QRect tileRect = reply->request().tileRect(); - - QPointF offset = d->windowOffset(); - - QList<QPair<QRect, QRect> > overlaps = d->intersectedScreen(tileRect); - for (int i = 0; i < overlaps.size(); ++i) { - QRect t = overlaps.at(i).second; - QRectF target = QRectF(offset.x() + int(t.left()) / d->zoomFactor, - offset.y() + int(t.top()) / d->zoomFactor, - int(t.width()) / d->zoomFactor, - int(t.height()) / d->zoomFactor); - - emit updateMapDisplay(target); - } - - if (d->requests.size() > 0) - QTimer::singleShot(0, this, SLOT(processRequests())); - - reply->deleteLater(); -} - -void QGeoTiledMapData::tileError(QGeoTiledMapReply::Error error, QString errorString) -{ - Q_UNUSED(error) - qWarning() << errorString; -} - -/*! - \reimp -*/ -QList<QGeoMapObject*> QGeoTiledMapData::mapObjectsAtScreenPosition(const QPointF &screenPosition) const -{ - return mapObjectsInScreenRect(QRectF(screenPosition - QPointF(1,1), - screenPosition + QPointF(1,1))); -// if (screenPosition.isNull()) -// return QList<QGeoMapObject*>(); - -// Q_D(const QGeoTiledMapData); - -// QList<QGeoMapObject*> results; -// QSet<QGeoMapObject*> considered; - -// d->oe->updateTransforms(); - -// QList<QGraphicsItem*> pixelItems; -// pixelItems = d->oe->pixelScene->items(QRectF(screenPosition - QPointF(1,1), -// screenPosition + QPointF(1,1)), -// Qt::IntersectsItemShape, -// Qt::AscendingOrder); - -// foreach (QGraphicsItem *item, pixelItems) { -// QGeoMapObject *object = d->oe->pixelItems.value(item); -// Q_ASSERT(object); - -// if (object->isVisible() && !considered.contains(object)) { -// bool contains = false; - -// if (d->oe->pixelExact.contains(object)) { -// foreach (QGraphicsItem *item, d->oe->pixelExact.values(object)) { -// if (item->shape().contains(screenPosition)) { -// contains = true; -// break; -// } -// } -// } else { -// QGraphicsItem *item -// = d->oe->graphicsItemFromMapObject(object); - -// if (item) { -// QList<QTransform> trans = d->oe->pixelTrans.values(object); - -// foreach (QTransform t, trans) { -// bool ok; -// QTransform inv = t.inverted(&ok); -// if (ok) { -// QPointF testPt = screenPosition * inv; - -// // we have to special case text objects here -// // in order to maintain their old (1.1) behaviour -// QGeoMapTextObject *tobj = qobject_cast<QGeoMapTextObject*>(object); -// if (tobj) { -// if (item->boundingRect().contains(testPt)) { -// contains = true; -// break; -// } -// } else { -// if (item->shape().contains(testPt)) { -// contains = true; -// break; -// } -// } -// } -// } -// } -// } - -// if (contains) -// results << object; - -// considered.insert(object); -// } -// } - -// return results; -} - -/*! - \reimp -*/ -QList<QGeoMapObject*> QGeoTiledMapData::mapObjectsInScreenRect(const QRectF &screenRect) const -{ - QList<QGeoMapObject*> results; - QSet<QGeoMapObject*> considered; - - Q_D(const QGeoTiledMapData); - - d->oe->updateTransforms(); - - QList<QGraphicsItem*> pixelItems = d->oe->pixelScene->items(screenRect, - Qt::IntersectsItemShape, - Qt::AscendingOrder); - - foreach (QGraphicsItem *item, pixelItems) { - QGeoMapObject *object = d->oe->pixelItems.value(item); - Q_ASSERT(object); - - if (object->isVisible() && !considered.contains(object)) { - bool contains = false; - - if (d->oe->pixelExact.contains(object)) { - foreach (QGraphicsItem *item, d->oe->pixelExact.values(object)) - if (item->shape().intersects(screenRect)) - contains = true; - } else { - QGraphicsItem *item - = d->oe->graphicsItemFromMapObject(object); - - if (item) { - QList<QTransform> trans = d->oe->pixelTrans.values(object); - - foreach (QTransform t, trans) { - bool ok; - QTransform inv = t.inverted(&ok); - if (ok) { - QPolygonF testPoly = screenRect * inv; - - QPainterPath testPath; - testPath.moveTo(testPoly[0]); - testPath.lineTo(testPoly[1]); - testPath.lineTo(testPoly[2]); - testPath.lineTo(testPoly[3]); - testPath.closeSubpath(); - - if (item->shape().intersects(testPath)) - contains = true; - } - } - } - } - - if (contains) - results << object; - - considered.insert(object); - } - } - - return results; -} - -/*! - Returns the center of the viewport, in pixels on the entire - map as a pixmap at the maximum zoom level. -*/ -QPoint QGeoTiledMapData::worldReferenceViewportCenter() const -{ - Q_D(const QGeoTiledMapData); - return d->worldReferenceViewportCenter; -} - -/*! - Returns the size, in pixels, of the entire map as a pixmap at the maximum - zoom level. -*/ -QSize QGeoTiledMapData::worldReferenceSize() const -{ - Q_D(const QGeoTiledMapData); - return d->worldReferenceSize; -} - -/*! - Returns the visible screen rectangle, in pixels on the entire map - as a pixmap at the maximum zoom level. -*/ -QRect QGeoTiledMapData::worldReferenceViewportRect() const -{ - Q_D(const QGeoTiledMapData); - return d->worldReferenceViewportRect; -} - -/*! - Returns the ratio between a single pixel on the screen and a pixel on - the entire map as a pixmap at the maximum zoom level. -*/ -int QGeoTiledMapData::zoomFactor() const -{ - Q_D(const QGeoTiledMapData); - return d->zoomFactor; -} - -/*! - Forces the map display to update in the region specified by \a target. - - If \a target is empty the entire map display will be updated. -*/ -void QGeoTiledMapData::triggerUpdateMapDisplay(const QRectF &target) -{ - emit updateMapDisplay(target); -} - -/******************************************************************************* -*******************************************************************************/ - -QGeoTiledMapDataPrivate::QGeoTiledMapDataPrivate(QGeoTiledMapData *parent, QGeoMappingManagerEngine *engine) - : QGeoMapDataPrivate(parent, engine), - oe(new QGeoMapObjectEngine(parent, this)), - zoomFactor(0), - spherical(QLatin1String("+proj=latlon +ellps=sphere")), - wgs84(QLatin1String("+proj=latlon +ellps=WGS84")) {} - -QGeoTiledMapDataPrivate::~QGeoTiledMapDataPrivate() -{ - foreach(QGeoTiledMapReply * reply, replies) { - reply->abort(); - reply->deleteLater(); - } - - if (oe) - delete oe; -} - -QPointF QGeoTiledMapDataPrivate::windowOffset() const -{ - qreal offsetX = ((windowSize.width() * zoomFactor) - worldReferenceViewportRect.width()) / 2.0; - if (offsetX < 0.0) - offsetX = 0.0; - offsetX /= zoomFactor; - - qreal offsetY = ((windowSize.height() * zoomFactor) - worldReferenceViewportRect.height()) / 2.0; - if (offsetY < 0.0) - offsetY = 0.0; - offsetY /= zoomFactor; - - return QPointF(offsetX, offsetY); -} - -void QGeoTiledMapDataPrivate::updateMapImage() -{ - Q_Q(QGeoTiledMapData); - - if ((zoomLevel == -1.0) || !windowSize.isValid()) - return; - - bool wasEmpty = (requests.size() == 0); - QGeoTileIterator it(this); - - while (it.hasNext()) { - QGeoTiledMapRequest req = it.next(); - QRect tileRect = req.tileRect(); - - if (!cache.contains(req)) { - if (!requestRects.contains(tileRect) && !replyRects.contains(tileRect)) { - requests.append(req); - requestRects.insert(tileRect); - } - } - } - -// qWarning() -// << d->requests.size() -// << d->cache.size() -// << d->cache.totalCost() -// << d->zoomCache.size() -// << d->zoomCache.totalCost(); - - if (wasEmpty && requests.size() > 0) { - QTimer::singleShot(0, q, SLOT(processRequests())); - } -} - -void QGeoTiledMapDataPrivate::clearRequests() -{ - requests.clear(); - requestRects.clear(); -} - -void QGeoTiledMapDataPrivate::paintMap(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/) -{ - QPointF offset = windowOffset(); - - QGeoTileIterator it(this); - - while (it.hasNext()) { - QGeoTiledMapRequest req = it.next(); - QRect tileRect = req.tileRect(); - - QList<QPair<QRect, QRect> > overlaps = intersectedScreen(tileRect); - for (int i = 0; i < overlaps.size(); ++i) { - QRect s = overlaps.at(i).first; - QRect t = overlaps.at(i).second; - - QRectF source = QRectF(int(s.left()) / zoomFactor, - int(s.top()) / zoomFactor, - int(s.width()) / zoomFactor, - int(s.height()) / zoomFactor); - QRectF target = QRectF(offset.x() + int(t.left()) / zoomFactor, - offset.y() + int(t.top()) / zoomFactor, - int(t.width()) / zoomFactor, - int(t.height()) / zoomFactor); - - if (cache.contains(req)) { - //painter->drawPixmap(target, *cache.object(req), source); - painter->drawImage(target, *cache.object(req), source); - } else { - if (zoomCache.contains(req)) { - painter->drawPixmap(target, *zoomCache.object(req), source); - } else { - painter->fillRect(target, Qt::lightGray); - } - } - } - } -} - -void QGeoTiledMapDataPrivate::paintObjects(QPainter *painter, const QStyleOptionGraphicsItem * option) -{ - painter->save(); - painter->setRenderHint(QPainter::Antialiasing); - - QRectF target = option ? option->rect : QRectF(QPointF(0,0), windowSize); - - QPointF offset = windowOffset(); - - target.adjust(offset.x(), offset.y(), -1.0 * offset.x(), -1.0 * offset.y()); - - painter->setClipRect(target); - - oe->updateTransforms(); - - QList<QGraphicsItem*> items = oe->pixelScene->items(target, - Qt::IntersectsItemShape, - Qt::AscendingOrder); - QSet<QGeoMapObject*> objsDone; - - QTransform baseTrans = painter->transform(); - - QStyleOptionGraphicsItem *style = new QStyleOptionGraphicsItem; - - foreach (QGraphicsItem *item, items) { - QGeoMapObject *object = oe->pixelItems.value(item); - Q_ASSERT(object); - if (object->isVisible() && !objsDone.contains(object)) { - if (oe->pixelExact.contains(object)) { - foreach (QGraphicsItem *it, oe->pixelExact.values(object)) { - painter->setTransform(baseTrans); - -// QStyleOptionGraphicsItem *style = new QStyleOptionGraphicsItem; - it->paint(painter, style); -// delete style; - } - } else { - QGraphicsItem *item = oe->graphicsItemFromMapObject(object); - if (item) { - foreach (QTransform trans, oe->pixelTrans.values(object)) { - painter->setTransform(trans * baseTrans); - -// QStyleOptionGraphicsItem *style = new QStyleOptionGraphicsItem; - item->paint(painter, style); - foreach (QGraphicsItem *child, item->children()) { - painter->setTransform(child->transform() * trans * baseTrans); - painter->translate(child->pos()); - child->paint(painter, style); - } - -// delete style; - } - } - } - objsDone.insert(object); - } - } - - painter->restore(); - - delete style; -} - -void QGeoTiledMapDataPrivate::cleanupCaches() -{ - int boundaryTiles = 3; - - QGeoTiledMappingManagerEngine *tiledEngine = static_cast<QGeoTiledMappingManagerEngine*>(engine); - - QSize tileSize = tiledEngine->tileSize(); - - QRectF cacheRect1; - QRectF cacheRect2; - - cacheRect1 = worldReferenceViewportRect.adjusted(-boundaryTiles * tileSize.width(), - -boundaryTiles * tileSize.height(), - boundaryTiles * tileSize.width(), - boundaryTiles * tileSize.height()); - - if (cacheRect1.width() > worldReferenceSize.width()) { - cacheRect1.setX(0); - cacheRect1.setWidth(worldReferenceSize.width()); - } else { - if (cacheRect1.x() + cacheRect1.width() > worldReferenceSize.width()) { - int oldWidth = cacheRect1.width(); - cacheRect1.setWidth(worldReferenceSize.width() - cacheRect1.x()); - cacheRect2 = QRectF(0, - cacheRect1.y(), - oldWidth - cacheRect1.width(), - cacheRect1.height()); - } - } - - QList<QGeoTiledMapRequest> keys = cache.keys(); - for (int i = 0; i < keys.size(); ++i) { - QRectF tileRect = keys.at(i).tileRect(); - if (!cacheRect1.intersects(tileRect)) { - if (cacheRect2.isNull() || !cacheRect2.intersects(tileRect)) { - cache.remove(keys.at(i)); - } - } - } -} - -QRect QGeoTiledMapDataPrivate::screenRectForZoomFactor(int factor) -{ - qreal viewportWidth = q_ptr->windowSize().width(); - qreal viewportHeight = q_ptr->windowSize().height(); - - int width = int(viewportWidth * factor); - int height = int(viewportHeight * factor); - - if (width > worldReferenceSize.width()) - width = worldReferenceSize.width(); - - if (height > worldReferenceSize.height()) - height = worldReferenceSize.height(); - - int x = (worldReferenceViewportCenter.x() - (width / 2)) % worldReferenceSize.width(); - if (x < 0) - x += worldReferenceSize.width(); - - int y = worldReferenceViewportCenter.y() - (height / 2); - - if (y < 0) - y = 0; - - if ((y + height) >= worldReferenceSize.height()) - y = worldReferenceSize.height() - height; - - return QRect(x, y, width, height); -} - -void QGeoTiledMapDataPrivate::updateScreenRect() -{ - worldReferenceViewportRect = screenRectForZoomFactor(zoomFactor); - - int x = worldReferenceViewportRect.x(); - int y = worldReferenceViewportRect.y(); - int width = worldReferenceViewportRect.width(); - int height = worldReferenceViewportRect.height(); - - if (x + width < worldReferenceSize.width()) { - worldReferenceViewportRectLeft = worldReferenceViewportRect; - worldReferenceViewportRectRight = QRect(); - } else { - int widthLeft = worldReferenceSize.width() - x; - int widthRight = width - widthLeft; - worldReferenceViewportRectLeft = QRect(x, y, widthLeft, height); - worldReferenceViewportRectRight = QRect(0, y, widthRight, height); - } -} - -bool QGeoTiledMapDataPrivate::containedInScreen(const QPoint &point) const -{ - return (worldReferenceViewportRectLeft.contains(point) - || (worldReferenceViewportRectRight.isValid() - && worldReferenceViewportRectRight.contains(point))); -} - -bool QGeoTiledMapDataPrivate::intersectsScreen(const QRect &rect) const -{ - return (worldReferenceViewportRectLeft.intersects(rect) - || (worldReferenceViewportRectRight.isValid() - && worldReferenceViewportRectRight.intersects(rect))); -} - -QList<QPair<QRect, QRect> > QGeoTiledMapDataPrivate::intersectedScreen(const QRect &rect, bool translateToScreen) const -{ - QList<QPair<QRect, QRect> > result; - - QRect rectL = rect.intersected(worldReferenceViewportRectLeft); - if (!rectL.isEmpty()) { - QRect source = QRect(rectL.topLeft() - rect.topLeft(), rectL.size()); - QRect target = QRect(rectL.topLeft() - worldReferenceViewportRectLeft.topLeft(), rectL.size()); - result << QPair<QRect, QRect>(source, target); - } - - if (worldReferenceViewportRectRight.isValid()) { - QRect rectR = rect.intersected(worldReferenceViewportRectRight); - if (!rectR.isEmpty()) { - QRect source = QRect(rectR.topLeft() - rect.topLeft(), rectR.size()); - QRect target = QRect(rectR.topLeft() - worldReferenceViewportRectRight.topLeft(), rectR.size()); - if (translateToScreen) - target.translate(worldReferenceViewportRectLeft.width(), 0); - result << QPair<QRect, QRect>(source, target); - } - } - - return result; -} - -// Old version, for reference - -//void QGeoMapDataPrivate::addObject(QGeoMapObject *object) -//{ -// containerObject->addChildObject(object); -// oe->addObject(object); -// emit q_ptr->updateMapDisplay(); -//} - -//void QGeoMapDataPrivate::removeObject(QGeoMapObject *object) -//{ -// containerObject->removeChildObject(object); -// oe->removeObject(object); -//} - -void QGeoTiledMapDataPrivate::addObject(QGeoMapObject *object) -{ -// containerObject->addChildObject(object); -// oe->addObject(object); -// emit q_ptr->updateMapDisplay(); - - QGeoMapDataPrivate::addObject(object); - oe->addObject(object); -} - -void QGeoTiledMapDataPrivate::removeObject(QGeoMapObject *object) -{ - QGeoMapDataPrivate::removeObject(object); - oe->removeObject(object); -} - -void QGeoTiledMapDataPrivate::update(QObject *object) -{ - QGeoMapObject *obj = qobject_cast<QGeoMapObject*>(object); - if (obj) { - QGeoMapGroupObject *group = qobject_cast<QGeoMapGroupObject*>(obj); - if (group) { - oe->objectsForLatLonUpdate << group; - oe->objectsForPixelUpdate << group; - static_cast<QGeoTiledMapData*>(q_ptr)->triggerUpdateMapDisplay(); - } else { - oe->invalidateObject(obj); - } - } else { - static_cast<QGeoTiledMapData*>(q_ptr)->triggerUpdateMapDisplay(); - } -} - -/******************************************************************************* -*******************************************************************************/ - -QGeoTileIterator::QGeoTileIterator(const QGeoTiledMapDataPrivate *mapDataPrivate) - : atEnd(false), - row(-1), - col(-1), - screenRect(mapDataPrivate->worldReferenceViewportRect), - mapType(mapDataPrivate->mapType), - connectivityMode(mapDataPrivate->connectivityMode), - zoomLevel(mapDataPrivate->zoomLevel) -{ - QGeoTiledMappingManagerEngine *tiledEngine - = static_cast<QGeoTiledMappingManagerEngine*>(mapDataPrivate->engine); - tileSize = tiledEngine->tileSize() * mapDataPrivate->zoomFactor; - tileRect = QRect(QPoint(0, 0), tileSize); - - qulonglong x = static_cast<qulonglong>(screenRect.topLeft().x() / tileSize.width()); - qulonglong y = static_cast<qulonglong>(screenRect.topLeft().y() / tileSize.height()); - - width = tileSize.width() * (1 << zoomLevel); - - currTopLeft.setX(x * tileSize.width()); - currTopLeft.setY(y * tileSize.height()); -} - -QGeoTileIterator::QGeoTileIterator(QGraphicsGeoMap::ConnectivityMode connectivityMode, - QGraphicsGeoMap::MapType mapType, - const QRect &screenRect, - const QSize &tileSize, - int zoomLevel) - : atEnd(false), - row(-1), - col(-1), - screenRect(screenRect), - tileSize(tileSize), - mapType(mapType), - connectivityMode(connectivityMode), - zoomLevel(zoomLevel), - tileRect(QPoint(0, 0), tileSize) -{ - qulonglong x = static_cast<qulonglong>(screenRect.topLeft().x() / tileSize.width()); - qulonglong y = static_cast<qulonglong>(screenRect.topLeft().y() / tileSize.height()); - - width = tileSize.width() * (1 << zoomLevel); - - currTopLeft.setX(x * tileSize.width()); - currTopLeft.setY(y * tileSize.height()); -} - -bool QGeoTileIterator::hasNext() -{ - return !atEnd; -} - -QGeoTiledMapRequest QGeoTileIterator::next() -{ - int numCols = 1 << zoomLevel; - col = static_cast<int>(currTopLeft.x() / tileSize.width()) % numCols; - row = static_cast<int>(currTopLeft.y() / tileSize.height()) % numCols; - tileRect.moveTopLeft(currTopLeft); - if (tileRect.left() >= width) - tileRect.translate(-width, 0); - - currTopLeft.rx() += tileSize.width(); - - if (currTopLeft.x() > screenRect.right()) { //next row - qulonglong x = static_cast<qulonglong>(screenRect.topLeft().x() / tileSize.width()); - currTopLeft.setX(x * tileSize.width()); - currTopLeft.ry() += tileSize.height(); - } - - if (currTopLeft.y() > screenRect.bottom()) //done - atEnd = true; - - return QGeoTiledMapRequest(connectivityMode, mapType, zoomLevel, row, col, tileRect); -} - -#include "moc_qgeotiledmapdata.cpp" - -QT_END_NAMESPACE |